CN217542128U - Vibration sensing device - Google Patents
Vibration sensing device Download PDFInfo
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- CN217542128U CN217542128U CN202220201076.0U CN202220201076U CN217542128U CN 217542128 U CN217542128 U CN 217542128U CN 202220201076 U CN202220201076 U CN 202220201076U CN 217542128 U CN217542128 U CN 217542128U
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Abstract
A vibration-sensing device, the device comprising: the vibration isolation device comprises a shell, a first base, a second base, a first vibration sensor, a vibration processing circuit and a vibration isolation component, wherein the first base is used for being in contact with an object to be tested; wherein: the vibration isolation component is positioned between the first base and the second base and is used for isolating vibration energy transmitted by the first base; the first vibration sensor is rigidly connected with the first base through a through hole in the second base, and is used for sensing the vibration energy transmitted by the first base, converting the sensed vibration energy into a first electric signal and outputting the first electric signal to the vibration processing circuit; and the vibration processing circuit is fixed on the second base and used for receiving and processing the first electric signal output by the first vibration sensor. By adopting the scheme, the induction sensitivity of vibration can be improved.
Description
Technical Field
The utility model relates to a vibration detection technical field, concretely relates to vibration induction system.
Background
In the running process of equipment such as pipelines, rotating machinery and the like, vibration can be generated due to abnormity, leakage and damage, so that vibration signals can be monitored by installing a vibration sensor, and the state of the equipment is sensed.
However, in practical applications, many vibration signals are weak, and have low frequency and low amplitude. For example, the acoustic signal generated by the duct due to leakage has a major frequency component concentrated at 1-2kHz. For another example, the frequency of the vibration signal generated by the damage of the pipeline is generally below 1kHz, and the amplitude of the signal decays exponentially with the increase of the propagation distance.
The existing vibration sensor has poor sensitivity to weak vibration and is difficult to meet the requirements of users.
Disclosure of Invention
The utility model discloses the problem that solves is: how to improve the sensitivity to vibration?
In order to solve the above problem, an embodiment of the present invention provides a vibration sensing apparatus, the apparatus includes: the vibration isolation device comprises a shell, a first base, a second base, a first vibration sensor, a vibration processing circuit and a vibration isolation component, wherein the first base is used for being in contact with an object to be tested; wherein:
the vibration isolation component is positioned between the first base and the second base and is used for isolating vibration energy transmitted by the first base;
the first vibration sensor is rigidly connected with the first base through a through hole in the second base, and is used for sensing the vibration energy transmitted by the first base, converting the sensed vibration energy into a first electric signal and outputting the first electric signal to the vibration processing circuit;
and the vibration processing circuit is fixed on the second base and used for receiving and processing the first electric signal output by the first vibration sensor.
Optionally, the vibration isolation member comprises: a first flexible gasket.
Optionally, the apparatus further comprises: and the threaded connecting part is positioned between the first vibration sensor and the first base, and the first vibration sensor is rigidly connected with the first base through the threaded connecting part.
Optionally, the threaded connection component is located in the through hole of the second base, and a flexible sealing ring is arranged between the threaded connection component and the second base.
Optionally, the vibration isolation member further comprises: a second flexible gasket located between the threaded connection component and the second base.
Optionally, the vibration processing circuit comprises: the device comprises a time control module, a magnetic control acquisition module, an analog-to-digital conversion module, an audio conversion module, a storage module and an output module; wherein:
the time control module is connected with the magnetic control acquisition module and is used for controlling the working time of the magnetic control acquisition module;
the magnetic control acquisition module is connected with the first vibration sensor and used for enabling the first vibration sensor to acquire vibration signals when external magnetic excitation is carried out;
the analog-to-digital conversion module is connected with the first vibration sensor and is used for converting a first electric signal output by the first vibration sensor into a digital signal;
the audio conversion module is connected with the analog-to-digital conversion module and used for converting the digital signal into an audio format file;
the storage module is connected with the analog-to-digital conversion module and used for storing the audio format file;
and the output module is connected with the storage module and is used for outputting the audio format file.
Optionally, the vibration processing circuit further includes: and the wireless communication module is connected with the first vibration sensor or the output module and is used for outputting the first electric signal to a control end.
Optionally, the vibration sensing apparatus further includes: and the power supply module is used for providing power supply for each electric appliance in the vibration induction device.
Optionally, the vibration processing circuit further includes: and the endurance monitoring module is used for monitoring the voltage and the current of the power supply module, calculating the endurance time of the vibration sensing device and transmitting the output endurance time to the output module.
Optionally, the apparatus further comprises: and the second vibration sensor is fixed on the second base and used for detecting the moving acceleration or amplitude of the vibration sensing device and outputting a second electric signal to the vibration processing circuit when the moving acceleration or amplitude of the vibration sensing device is larger than a preset threshold value.
Optionally, the apparatus further comprises: and the alarm assembly is connected with the second vibration sensor and is suitable for executing alarm operation when receiving a second electric signal output by the second vibration sensor.
Optionally, the alarm component is further adapted to obtain the position information of the vibration sensing device, so as to send the position information of the vibration sensing device to the control end.
Compared with the prior art, the embodiment of the utility model provides a technical scheme has following advantage:
use the utility model discloses a scheme, first base are used for with the object contact that awaits measuring to with a vibration sensor rigid connection, the event when the object that awaits measuring takes place to vibrate, first base can transmit the vibration energy that the object that awaits measuring produced to a vibration sensor. Because the vibration isolation part is arranged between the first base and the second base, and the second base is used for supporting the shell, the energy transmitted by the first base cannot be transmitted to the second base and the shell on the second base, so that the vibration energy received by the first vibration sensor is basically the same as that of the first base, the vibration induction sensitivity is higher, and whether the object to be detected vibrates or not can be identified more accurately.
Drawings
Fig. 1 is a front view of a vibration sensing device in an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of a vibration sensing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a vibration sensing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a vibration processing circuit according to an embodiment of the present invention.
Detailed Description
When the existing vibration sensing device is placed on an object to be measured to measure whether the object to be measured vibrates, the vibration energy of the object to be measured can be transmitted to all parts of the vibration sensing device, namely all parts of the vibration sensing device vibrate together, so that the vibration energy received by the vibration sensor is small. Therefore, when the vibration of the object to be detected is weak, the vibration energy received by the vibration sensor is smaller, and the vibration sensor cannot detect whether the object to be detected vibrates or not.
To the problem, the utility model provides a vibration induction system, among the vibration induction system, be provided with the vibration isolation part between first base and the second base, first base and first vibration sensor rigid connection, so when the object to be measured takes place the vibration, first base can transmit the vibration energy that the object to be measured produced to first vibration sensor, and can not transmit the shell on second base and the second base, make the vibration energy of receiving on the first vibration sensor the same basically with first base like this, the vibration energy loss is less, can improve vibration induction system's sensitivity from this, just also can improve the accuracy that the vibration detected.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a front view of a vibration sensing device 1 according to an embodiment of the present invention; fig. 2 is a schematic diagram of an internal structure of a vibration sensing apparatus 1 according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional structure diagram of a vibration sensing device 1 according to an embodiment of the present invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a vibration sensing apparatus 1, where the vibration sensing apparatus 1 may include: a housing 10, a first base 11, a second base 12, a first vibration sensor 13, a vibration processing circuit 14, and a vibration isolation member 15. Wherein:
the housing 10 has a chamber. The second base 12 is connected to the housing 10, and is configured to support the housing 10. The first base 11 is used for contacting with an object to be measured. The first vibration sensor 13, the vibration processing circuit 14, and the vibration isolation member 15 are disposed in the chamber of the housing 10.
The vibration isolation component 15 is located between the first base 11 and the second base 12, and is used for isolating vibration energy transmitted by the first base 11.
The first vibration sensor 13 is rigidly connected to the first base 11 through a through hole on the second base 12, and is configured to sense vibration energy transmitted by the first base 11, convert the sensed vibration energy into a first electrical signal, and output the first electrical signal to the vibration processing circuit 14.
The vibration processing circuit 14 is fixed on the second base 12, and is configured to receive and process the first electrical signal output by the first vibration sensor 13.
By adopting the scheme in the prior art, because the whole mass of the vibration sensing device 1 is large, when vibration occurs, the vibration sensing device 1 absorbs the vibration energy integrally, and the vibration amplitude acquired by the vibration sensor is small. Therefore, when the vibration signal is weak, it is easily submerged by noise.
Adopt the utility model discloses a scheme, through vibration isolation part 15, with other parts of first base 11 and first base 11 rigid connection, with second base 12 and the part (for example shell 10) that second base 12 supported, when the object to be measured takes place to vibrate like this, can make the vibration energy of first base 11 transmission not transmit to second base 12 and the part that second base 12 supported on, and only transmit to first base 11 and with first base 11 rigid connection's first vibration sensor 13, only first vibration sensor 13 participates in the vibration promptly, and second base 12 and the part of supporting on it do not participate in the vibration. Therefore, the amplitude of the vibration signal can be prevented from being attenuated, and the first vibration sensor 13 detects a relatively weak vibration signal, thereby improving the sensitivity of the vibration sensing apparatus 1 to vibration.
In specific implementation, the object to be measured can be a pipeline, a bridge, a fan, a motor and other equipment. The housing 10 may be made of a waterproof, wear-resistant material. The housing 10 may form a closed chamber to better protect other components within the chamber.
For ease of installation and maintenance, referring to fig. 1, the housing 10 may be configured to include a first housing 101 and a second housing 102, the first housing 101 and the second housing 102 together forming a respective chamber. The first housing 101 and the second housing 102 may be fixedly connected by a screw. Thus, the first casing 101 or the second casing 102 can be removed as needed at the time of maintenance.
In a specific implementation, the housing 10 is fixed on the second base 12, and the fixing manner is not limited, for example, a corresponding groove may be provided on the second base 12, so that the housing 10 is clamped in the groove.
In a specific implementation, the first base 11 may be disposed on an object to be measured, and specifically, the first base 11 may be fixed on the object to be measured in various ways. For example, the first base 11 may be a magnetic base, and the magnetic force generated by the magnetic base may attract the vibration sensing apparatus 1 to the object to be measured. For another example, the first base 11 may be adhered to the object to be measured by using an adhesive material.
In a specific implementation, the first vibration sensor 13 may be rigidly connected to the first base 11 in various ways, and is not limited herein, as long as the first base 11 can transmit all the vibration energy received by the first base 11 to the first vibration sensor 13.
In an embodiment of the present invention, referring to fig. 3, a threaded connection component 16 may be disposed between the first vibration sensor 13 and the first base 11, and the first vibration sensor 13 is rigidly connected to the first base 11 through the threaded connection component 16.
In a specific implementation, the first vibration sensor 13 is fixed to the threaded connection 16. One end of the screw coupling member 16 passes through the through hole of the second base 12 and is coupled to the first base 11. Specifically, the bottom of the screw connection member 16 may be fixed to the first base 11 by a bolt. The vibration isolating member 15 is provided around the screw coupling member 16 between the first base 11 and the second base 12. The vibration energy transmitted by the first base 11 reaches the first vibration sensor 13 through the screw connection member 16. The first vibration sensor 13 serves as a core component, and converts vibration into an electric signal and transmits the electric signal to the vibration processing circuit 14.
In particular implementations, the vibration isolation member 15 may be implemented in a variety of configurations and is not limited herein.
In an embodiment of the present invention, the vibration isolation member 15 may include: a first flexible gasket 151. The first flexible gasket 151 is located between the first base 11 and the second base 12.
In a specific implementation, the first flexible gasket 151 may have the same shape as the first base 11. For example, when the surface of the first base 11 contacting the first flexible gasket 151 is circular, the surface of the first flexible gasket 151 contacting the first base 11 may be circular. Wherein, the inner diameter of the first flexible gasket 151 may be greater than or equal to the outer diameter of the screw connection part 16, and the outer diameter of the first flexible gasket 151 is generally smaller than the outer diameter of the first base 11.
In another embodiment of the present invention, referring to fig. 3, the vibration isolation member 15 may further include: a second compliant shim 152, said second compliant shim 152 being positioned between said threaded connection member 16 and said second base 12.
In a specific implementation, the threaded connection 16 has an edge projecting from a through hole in the second base 12. The second base 12 may have a recess that matches the protruding edge of the threaded connection 16. The second flexible gasket 152 is located between the edge of the threaded connection part 16 and the recess of the second base 12, and may be disposed around the threaded connection part 16, thereby preventing the vibration received by the threaded connection part 16 from being transmitted to the second base 12.
In a specific embodiment, the first compliant shim 151 and the second compliant shim 152 have a shore hardness of 30 degrees to 65 degrees and are capable of isolating vibration. The flexible gasket can be made of silica gel rubber and the like. The thickness of the flexible gasket is typically in the range of 0.5mm to 5 mm.
In an embodiment of the present invention, referring to fig. 3, in order to realize sealing, a sealing member 17 may be disposed between the threaded connection member 16 and the second base 12, the sealing member 17 is used to seal a gap between the threaded connection member 16 and the second base 12, so as to prevent external dust, moisture, and the like from entering the closed cavity formed by the housing 10.
In particular implementations, the sealing member 17 may exist in a variety of configurations. For example, the sealing member 17 may be a flexible sealing ring. The thickness of the flexible sealing ring is generally smaller than the height of the through hole in the second base 12. The shore hardness of the flexible sealing ring is within the range of 45-75 degrees and can isolate vibration. The flexible sealing ring can be made of silica gel rubber. The thickness of the flexible gasket is typically in the range of 1mm to 3 mm.
In a specific implementation, the vibration processing Circuit 14 may be integrated on a Printed Circuit Board (PCB). The printed circuit board is fixed to a housing, such as the second housing 102, and is supported by the second base 12 to maximize the vibrational energy available to the first vibration sensor 13.
In an embodiment of the present invention, referring to fig. 4, the vibration processing circuit 14 may include: the time control module 141, the magnetic control acquisition module 142, the analog-to-digital conversion module 143, the audio conversion module 144, the storage module 145 and the output module 146. Wherein:
the time control module 141 is configured to control the working time of the magnetic control acquisition module 142;
the magnetic control acquisition module 142 is connected to the first vibration sensor 13, and is configured to enable the first vibration sensor 13 to acquire a vibration signal when the external magnetic excitation is performed;
the analog-to-digital conversion module 143 is connected to the first vibration sensor 13, and is configured to convert the first electrical signal output by the first vibration sensor 13 into a digital signal;
the audio conversion module 144 is connected to the analog-to-digital conversion module 143, and is configured to convert the digital signal into an audio format file;
the storage module 145 is connected to the analog-to-digital conversion module 143 and configured to store the audio format file;
the output module 146 is connected to the storage module 145 and configured to output the audio format file.
In a specific implementation, the time control module 141 may internally generate a clock signal, and the time control module 141 may control the first vibration sensor 13 to collect the vibration signal based on the clock signal. In addition, the magnetic control acquisition module 142 is usually located near the first vibration sensor 13, and the magnetic control acquisition module 142 is magnetically excited to trigger the first vibration sensor 13 to perform vibration detection.
In a specific implementation, after the first vibration sensor 13 detects the vibration, the detection result is output to the analog-to-digital conversion module 143 as an electrical signal. The electrical signal sent by the first vibration sensor 13 is an analog signal, and the analog-to-digital conversion module 143 converts the electrical signal sent by the first vibration sensor 13 into a digital signal and sends the digital signal to the audio conversion module 144. The audio conversion module 144 may encode the converted digital signal into an audio format file.
In a specific implementation, the storage module 145 may include two parts, one part is used as a cache for temporarily storing the audio format files to be used, and the other part is used as a backup storage for backing up the audio format files.
In a specific implementation, the output module 146 may read the audio format file from the buffer of the storage module 145 and output the audio format file in a voice manner.
In some embodiments, the vibration processing circuit 14 may not be provided with the audio conversion module 144, and the output module 146 may directly output the digital signal converted by the analog-to-digital conversion module 143.
In some embodiments, referring to fig. 4, the vibration processing circuit 14 may further include: a wireless communication module 147. The wireless communication module 147 may be connected to the first vibration sensor 13 or the output module 146, and configured to output the first electrical signal or the audio format file to a control terminal.
In a specific implementation, the wireless communication module 147 may output the first electrical signal or the audio format file to the control end by using a plurality of wireless communication manners. Specifically, the wireless communication module 147 may output the first electrical signal or the audio format file to the control end by using a short-range wireless communication method, such as bluetooth, or may output the first electrical signal or the audio format file to the control end by using a long-range wireless communication method, such as 2G, 3G, 4G, and 5G.
In a specific implementation, referring to fig. 2 and 3, the wireless communication module may include an internal or external antenna 147a for transmitting the first electrical signal or the audio format file to the control terminal. The control end can be a mobile phone or a remote cloud platform.
In a specific implementation, the control end may perform bidirectional transmission with the vibration sensing device, for example, the control end may control a daily working time of the first vibration sensor 13 in the vibration sensing device, so as to turn on or turn off the first vibration sensor 13 according to an actual requirement, so as to save energy consumption.
In an embodiment of the present invention, referring to fig. 2 and 3, the vibration sensing apparatus 1 may further include: a power supply module 18. The power module 18 can provide power for the devices inside the vibration sensing apparatus 1.
In one implementation, the power module 18 may be fixed to a housing, such as the second housing 102, and supported by the second base 12 to maximize the vibrational energy available to the first vibration sensor 13.
In one embodiment, the power module 18 can provide power to the devices inside the vibration sensing apparatus 1 in various ways. For example, the power module 18 may be a battery, and the battery directly supplies power to the devices inside the vibration sensing apparatus 1. The power supply module 18 may also be configured to include: the wireless charging submodule can be used for charging the rechargeable battery in a wireless or wired mode.
In an embodiment of the present invention, referring to fig. 4, the vibration processing circuit 14 may further include: and the endurance monitoring module 148 is used for monitoring the voltage and the current of the power supply module, calculating the endurance time of the vibration sensing device, and outputting the endurance time to the output module. By detecting the voltage and the current of the power supply module, the power consumption of the power supply module during operation can be calculated, and the power consumption of the power supply module during operation is related to the endurance time of the vibration sensing device, so that the endurance time of the vibration sensing device can be calculated.
In an embodiment of the present invention, referring to fig. 2 and 3, the vibration sensing device 1 may further include a second vibration sensor 19, and the second vibration sensor 19 may be fixed on the PCB board and further supported by the second base 12. The second vibration sensor 19 may be configured to detect an acceleration or amplitude of the movement of the vibration sensing apparatus 1, and output a second electrical signal to the vibration processing circuit 14 when the acceleration or amplitude of the movement of the vibration sensing apparatus 1 is greater than a preset threshold.
In a specific implementation, the second vibration sensor 19 may be configured to have two states, one being an open state and the other being an on state. The second vibration sensor 19 may generate an electrical characteristic change to present a conducting state when the movement amplitude of the vibration sensing apparatus 1 is greater than the preset amplitude threshold, for example, when the movement amplitude of the vibration sensing apparatus 1 is greater than the preset amplitude threshold due to external force collision, or when the movement amplitude of the vibration sensing apparatus 1 is greater than the preset amplitude threshold due to being moved.
In a specific implementation, when the vibration processing circuit 14 receives the second electrical signal, it can determine that the vibration sensing apparatus 1 is not moved (for example, stolen), and further prompt the user through an output circuit, such as a voice prompt or a text prompt. The prompt may be sent to the control terminal or may be output from the vibration sensing apparatus 1 itself.
In a specific implementation, referring to fig. 2, the vibration sensing apparatus 1 may further include an alarm assembly 20, and the alarm assembly 20 may be connected to the second vibration sensor 19 and adapted to perform an alarm operation upon receiving a second electric signal output by the second vibration sensor 19.
In specific implementations, the alarm component 20 may include a buzzer, an LED lamp, etc., without limitation. The alarm assembly 20 may be configured to be secured to the PCB board and thereby supported by the second base 12. Once receiving the second electric signal output by the second vibration sensor 19, the buzzer can generate an alarm sound, and the LED lamp can flash light to alarm.
In an embodiment of the present invention, the alarm component 20 is further adapted to acquire the position information of the vibration sensing device 1, so as to transmit the position information of the vibration sensing device to the control end.
In particular implementations, the alarm assembly 20 may be connected to a wireless communication module in the vibration processing circuit 14. The alarm component 20 can periodically send specific information to the control terminal while generating an audible and visual alarm after determining that the vibration sensing device 1 is not moved in time. The cloud platform can know that the vibration sensing device 1 is stolen through the received specific information, and can obtain the position of the vibration sensing device 1. The position of the vibration sensing device 1 can be displayed on an application interface of a control end.
In some embodiments, when the control end is a cloud platform, the cloud platform may further push the position information of the vibration sensing device 1 to a designated user, so as to facilitate tracking. In addition, the alarm assembly 20 may be provided with a switch, and the switch may be controlled by a control terminal.
As can be seen from the above, the vibration sensing apparatus according to the embodiment of the present invention can improve the sensitivity of vibration sensing by providing the vibration isolation member between the first base and the second base. In addition, through setting up the second vibration sensor, can avoid vibration induction system stolen as far as possible, improve the security of using.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (12)
1. A vibration sensing apparatus, comprising: the vibration isolation device comprises a shell, a first base, a second base, a first vibration sensor, a vibration processing circuit and a vibration isolation component, wherein the first base is used for being in contact with an object to be tested; wherein:
the vibration isolation component is positioned between the first base and the second base and is used for isolating vibration energy transmitted by the first base;
the first vibration sensor is rigidly connected with the first base through a through hole in the second base, and is used for sensing the vibration energy transmitted by the first base, converting the sensed vibration energy into a first electric signal and outputting the first electric signal to the vibration processing circuit;
and the vibration processing circuit is fixed on the second base and used for receiving and processing the first electric signal output by the first vibration sensor.
2. The vibration sensing apparatus of claim 1 wherein the vibration isolation member comprises: a first flexible gasket.
3. The vibration sensing apparatus of claim 1, further comprising: and the threaded connecting part is positioned between the first vibration sensor and the first base, and the first vibration sensor is rigidly connected with the first base through the threaded connecting part.
4. The vibration sensing apparatus of claim 3 wherein the threaded connection is located within the through-hole of the second base, and a flexible gasket is disposed between the threaded connection and the second base.
5. The vibration sensing apparatus of claim 3 wherein the vibration isolation member further comprises: a second flexible gasket located between the threaded connection component and the second base.
6. The vibration sensing apparatus of claim 1 wherein said vibration processing circuitry comprises: the device comprises a time control module, a magnetic control acquisition module, an analog-to-digital conversion module, an audio conversion module, a storage module and an output module; wherein:
the time control module is used for controlling the working time of the magnetic control acquisition module;
the magnetic control acquisition module is connected with the first vibration sensor and used for enabling the first vibration sensor to acquire vibration signals when external magnetic excitation is carried out;
the analog-to-digital conversion module is connected with the first vibration sensor and is used for converting a first electric signal output by the first vibration sensor into a digital signal;
the audio conversion module is connected with the analog-to-digital conversion module and is used for converting the digital signals into audio format files;
the storage module is connected with the analog-to-digital conversion module and used for storing the audio format file;
the output module is connected with the storage module and used for outputting the audio format file.
7. The vibration sensing apparatus of claim 6 wherein the vibration processing circuit further comprises: and the wireless communication module is connected with the first vibration sensor or the output module and is used for outputting the first electric signal to a control end.
8. The vibration sensing apparatus of claim 6, further comprising: and the power supply module is used for providing power supply for each electric appliance in the vibration induction device.
9. The vibration sensing apparatus of claim 8 wherein the vibration processing circuit further comprises: and the endurance monitoring module is used for monitoring the voltage and the current of the power supply module, calculating the endurance time of the vibration sensing device and transmitting the output endurance time to the output module.
10. The vibration sensing apparatus of claim 1, further comprising: and the second vibration sensor is fixed on the second base and used for detecting the moving acceleration or amplitude of the vibration sensing device and outputting a second electric signal to the vibration processing circuit when the moving acceleration or amplitude of the vibration sensing device is larger than a preset threshold value.
11. The vibration sensing apparatus of claim 10, further comprising: and the alarm assembly is connected with the second vibration sensor and is suitable for executing alarm operation when receiving a second electric signal output by the second vibration sensor.
12. The vibration sensing device of claim 11, wherein the alarm assembly is further adapted to obtain position information of the vibration sensing device to send the position information of the vibration sensing device to a control end.
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|---|---|---|---|
| CN202220201076.0U CN217542128U (en) | 2022-01-25 | 2022-01-25 | Vibration sensing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220201076.0U CN217542128U (en) | 2022-01-25 | 2022-01-25 | Vibration sensing device |
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| CN217542128U true CN217542128U (en) | 2022-10-04 |
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