CN220982643U - Monitoring device for fastening device and fastening device - Google Patents

Abstract

The utility model relates to a monitoring device for a fastening device and a fastening device. A monitoring device for a fastening device, the monitoring device comprising: an energy harvesting device configured to convert the vibrations into electrical energy; an energy storage device configured to store the collected electrical energy and to power the monitoring device; a state detection device configured to detect a state of the fastening device, and a presentation device configured to present the state of the fastening device detected by the sensor.

Description

Monitoring device for fastening device and fastening device

Technical Field

The present utility model relates to fastening devices, and in particular to condition monitoring of fastening devices.

Background

Fastening means, such as bolts, are one of the most important parts in mechanical construction. In the industry, fastening devices are often used to achieve mechanical connections that can be used to achieve component connections, such as connecting specific components to fixed locations or structures, as well as between parts or components in large structures.

The state of the fastening device has a direct influence on the robustness of the mechanical structure. In industrial applications, over time, the fastening device may come loose, which may pose serious safety hazards.

Therefore, there is a need for monitoring the condition of a fastening device in a cost-effective and efficient manner.

Disclosure of utility model

It is an object of the present utility model to provide an improved monitoring device for a fastening device.

According to one aspect of the utility model, a monitoring device for a fastening device is disclosed, which may include: an energy harvesting device configured to convert the vibrations into electrical energy; an energy storage device configured to store the collected electrical energy and to power the monitoring device; a state detection device configured to detect a state of the fastening device, and a presentation device configured to present the state of the fastening device detected by the sensor.

According to one embodiment of the utility model, the monitoring device may be coupled to the fastening device or integrated with the fastening device.

According to one embodiment of the utility model, the fastening means may comprise threaded fastening means or unthreaded fastening means.

According to an embodiment of the utility model, the energy harvesting device may comprise a piezoelectric device.

According to an embodiment of the utility model, the energy harvesting device may be configured to convert vibrations of the fastening device caused by a moving vehicle passing in the vicinity of the fastening device into electrical energy.

According to one embodiment of the utility model, the energy storage device may comprise a capacitor or a rechargeable battery.

According to an embodiment of the utility model, the state detected by the sensor may be related to a failure state of the fastening device, wherein the failure state of the fastening device may relate to at least one of a fastening state of the fastening device, a movement state of the fastening device, a deformation.

According to one embodiment of the utility model, the sensor may comprise at least one of a range sensor, a gyroscope.

According to one embodiment of the utility model, the presentation device may comprise at least one of an audible presentation device, a visual presentation device, a wireless signal transmission device.

According to an embodiment of the utility model, the presenting means may be configured to present information about the detected status of the fixture, or the presenting means may be configured to present a failure status of the fixture only if a failure of the fixture is detected.

According to one embodiment of the utility model, the monitoring device may further comprise a processor configured to process status data detected by the sensor to determine the status of the fastening device.

According to an embodiment of the present utility model, the processor may include a comparator configured to compare the information related to the fastening device state with a specific threshold value, and determine that the fastening device is faulty when the information related to the fastening device state is greater than the specific threshold value, and the presenting means may be configured to present the faulty state of the fastening device in case that the fastening device is determined to be faulty.

According to another aspect of the utility model, a fastening device is disclosed, comprising a monitoring device as described above.

This section is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This section is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Other aspects and advantages of the present disclosure will become apparent from the following detailed description of the embodiments and the accompanying drawings.

Drawings

The foregoing and other objects and advantages of the disclosure will be further described below in connection with the following detailed description of the embodiments, with reference to the accompanying drawings. In the drawings, the same or corresponding technical features or components will be denoted by the same or corresponding reference numerals.

Fig. 1 illustrates a basic structural diagram of a monitoring device for a fastening device according to an embodiment of the present disclosure.

FIG. 2A illustrates one exemplary implementation of a monitoring device according to an embodiment of the present disclosure;

FIG. 2B illustrates another exemplary implementation of a monitoring device according to an embodiment of the present disclosure;

Fig. 3 illustrates an example of a fastening device according to an embodiment of the present disclosure.

FIG. 4 illustrates an exemplary implementation of a state detection device according to an embodiment of the present disclosure;

FIGS. 5A through 5C illustrate exemplary implementations of a state detection device according to embodiments of the present disclosure;

Fig. 6 illustrates an exemplary implementation scenario according to an embodiment of the present disclosure.

The embodiments described in this section may be susceptible to various modifications and alternative forms, and specific embodiments thereof are shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the embodiment to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.

Detailed Description

Exemplary embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an embodiment are described in the specification. However, it should be appreciated that many implementation-specific arrangements must be made in implementing the embodiments in order to achieve a developer's specific goals, such as compliance with those constraints related to equipment and business, and that these constraints may vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

Furthermore, to avoid obscuring the disclosure with unnecessary detail, only the processing steps and/or apparatus structures that are closely related to at least the schemes according to the present disclosure are shown in the drawings, while other details that are not greatly relevant to the present disclosure are omitted. It should also be noted that like reference numerals and letters in the figures indicate like items, and thus once an item is defined in one figure, it is not necessary to discuss it again for subsequent figures.

In this disclosure, the terms "first," "second," and the like are used merely to distinguish elements and are not intended to indicate a preference or importance.

Fastening devices are often used to couple two or more structures to each other. For example, the fastening means may be bolts or the like for fastening a specific device to a fixed object, such as fixing a specific line, equipment or the like to a building wall, a building roof or the like. Of course, the fastening device may also couple two or more parts together, for example requiring the use of fastening devices or the like for assembly of the parts during setup of various outdoor towers.

With the great number of applications of fastening devices, the fastening effect and the state thereof often directly affect the firmness of the mechanical assembly. For example, while the fastening device may achieve a secure connection of the components at the time of initial assembly, over time the connection site of the fastening device may come loose, thereby creating a safety hazard. Therefore, monitoring the status of the fastening device is very necessary.

However, with the large number of applications of fastening devices, they tend to be huge in number and widely distributed in various places, making manual monitoring of the status of the fastening devices very difficult and impractical.

In some applications, the fastening device or its associated monitoring device may be energized to enable status monitoring. However, in many application scenarios a large number of fastening devices may be used, for example, there may be thousands of fastening devices in a tunnel. The arrangement of wired power lines for a large number of fastening devices can lead to excessive costs and excessive complexity of the infrastructure, which in turn can create new safety hazards.

In some applications, a battery, such as a lithium battery, a rechargeable battery, etc. (e.g., NMC lithium ion battery) may be disposed for the fastening device. Batteries may power the monitoring device of the fastening device, but due to the limited volume such batteries often do not provide enough power to allow the monitoring device to operate stably for long periods of time, such as for status monitoring and status presentation to occur stably over years. If the battery is charged, it is often necessary to recharge it from time to time, especially manually, which can result in increased labor costs and increased workload for the operator.

In the present disclosure, an improved monitoring device for a fastening device is presented. In particular, in the case where the fastening device is mounted at a specific position, each time a moving vehicle or the like passes near the specific position, the fastening device mounted thereat is caused to vibrate. The monitoring device of the fastening device is capable of converting vibrational energy into electrical energy for harvesting/collecting electrical energy for its own operation, in particular for detecting the status of the fastening device. The detected state may be presented in a suitable manner, for example to a remote controller or a central console for confirming the state of the fastening device.

In particular, charging of the monitoring device may be achieved by converting vibrations into electrical energy without direct connection to the power distribution system. Moreover, the monitoring device can conveniently and automatically collect electric energy without manual intervention. The energy collection device is simple in structure and high in safety.

Moreover, the monitoring device can automatically monitor the status of the fastening device, such as the installation status of the fastening device, information about whether there is a fault, etc., and can automatically present the monitored status in a suitable manner so that a user or a central console can conveniently, accurately and timely learn about their status, especially the abnormal/fault status.

The present disclosure also proposes an improved fastening device, which may in particular comprise a monitoring device as described above. In particular, the monitoring device may be integrated in the fastening device. Such fastening devices may be referred to as intelligent fastening devices that are capable of intelligently monitoring and presenting the status of the fastening device.

Fig. 1 shows a block diagram of a monitoring device 100 for a fastening device according to an embodiment of the present disclosure. The monitoring device 100 includes: an energy harvesting device 101, which may be configured to convert vibrations into electrical energy; an energy storage device 102, which may be configured to store the collected electrical energy and power the monitoring device; a state detection device 103, which may be configured to detect a state of the fastening device; and a presentation device 104, which may be configured to present the status of the fastening device as detected by the sensor.

In some embodiments, the monitoring device 100 may also include a processor 105 that is capable of performing various suitable processes on the detected status data, such as noise reduction, filtering, analysis, comparison, screening, and the like. It should be noted that the processor is optional.

In some embodiments, the monitoring device may be coupled to, as shown in fig. 2A, or integrated with, the fastening device, as shown in fig. 2B. In fig. 2A and 2B, a fastening device installation site 201, a mounting hardware 202, a fastening device 203, a sensor 204, an energy storage 205, a processor 206, a status presentation 207, an energy collection 208 are shown.

Exemplary implementations of the monitoring device and the fastening device will be described below.

In some embodiments, the fastening means may comprise various forms of means for effecting connection of the components. For example, depending on the application and circumstances, the fastening means may comprise threaded fastening means or unthreaded fastening means. For example, it may include various known mechanical devices such as screws, bolts, nuts, bolts, rivets, pins, welding nails, and the like. Of course, this is by way of example only. The fastening device may also include various means developed in the future for achieving coupling between components, fastening functions, etc.

In some embodiments, the energy harvesting device is capable of converting vibrations into electrical energy to harvest electrical energy for the monitoring device. Preferably, the energy harvesting device is configured to be able to convert vibrations of the fastening device caused by a moving vehicle passing in the vicinity of the fastening device into electrical energy. For example, the fastening device may be installed in a tunnel such that whenever a moving vehicle travels through the tunnel, the fastening device in the tunnel adjacent to the moving vehicle is caused to vibrate. At this time, the energy collecting device of the fastening device can convert the vibration into electric energy for the monitoring device to work. In a preferred embodiment, the energy harvesting device may be a piezoelectric device.

According to some embodiments of the present disclosure, energy harvesting can be implemented in various suitable ways, in particular performed autonomously or automatically. In a preferred embodiment, the energy collection may be triggered by a moving vehicle passing through a particular location with the fastening device mounted in that particular location. In particular, the energy collection may be triggered by vibrations of the fastening device caused by the moving vehicle passing the specific location.

Of course, the energy harvesting device may additionally optionally include a wired charging module. In some situations (e.g., during periodic equipment servicing operations), the energy harvesting device may be wired to the power source manually to directly charge the monitoring device.

In some embodiments, the energy storage device can be implemented in various suitable ways to store the collected energy. For example, the energy storage device may be a capacitor, a rechargeable battery, and various forms of energy storage batteries, or various energy storage devices currently available or developed in the future, as long as they are capable of storing the collected energy for use by the state detection device. It should be noted that the energy storage device may be included in the monitoring device or be provided outside and associated with the monitoring device in order to store energy collected by the energy collection device in the monitoring device.

According to some embodiments, the status detection device can be used to detect the operational status of the fastening device, in particular as to whether the fastening device is out of operation, has failed. In some embodiments, the detected condition is related to a fault condition of the fastening device. Wherein the failure state of the fastening device relates to at least one of a fastening state of the fastening device, a movement state of the fastening device, and a deformation.

In some embodiments, the status detection means may perform the detection autonomously, e.g. may perform the status detection periodically. In other embodiments, the status detection device may also be triggered to perform detection, for example, a detection indication may be issued by the remote control device to perform detection. For example, the detection operation may be periodically awakened by an external trigger (MCU or RFID, etc.). In some embodiments, the state detection device may operate in dependence on energy stored in the energy storage device. For example, the state detection means may perform state detection when sufficient energy is stored in the energy storage means. For example, the condition detection device may perform condition monitoring when the energy storage device is full of energy, or when the stored energy is greater than a certain energy threshold (e.g., 50%, 60%, 70% or higher of the total energy, etc.).

For example, where the fastening device is a bolt mounted on a wall or roof of a tunnel, as shown in fig. 3, the failure/failure mode that can detect the fastening device includes at least one of:

The entire bolt-tightening device falls or moves, for example, concrete desertification causes insufficient holding power;

Creep elongation of the bolt shank, such as deformation under prolonged stress;

the loosening of the rotation of the nut is caused, for example, by external impact, vibration, or the like.

Fig. 3 shows a fixed load 301 and a bolt 302.

According to some embodiments, the status detection means may comprise various suitable detection means. In particular, depending on the fault state to be detected, a suitable type of detection means may be selected and suitably arranged.

In some embodiments, the status detection device may be various suitable types of sensors, which may include, for example, force sensors, ranging sensors, load sensors, and the like.

In one example, for the loosening state of the entire bolt, a force sensor provided near the bolt for detecting a fastening force between the bolt and the surrounding environment to which it is fixed, or a load sensor for detecting a load to which the bolt is subjected, or the like may be included. For example, for the state of the bolt itself, a distance measuring sensor attached to the bolt or provided in the bolt (e.g., in the bolt head, nut, etc.) for detecting deformation of the bolt may be included. For example, for rotational looseness of the nut, external impact, vibration, or the like, a sensor for detecting the magnitude of deformation, or the like may be included.

In some embodiments, the sensor comprises at least one of a range sensor, a gyroscope.

Fig. 4 illustrates one exemplary implementation of a sensor device according to the present disclosure, which is a ranging sensor. Fig. 4 shows a fixed load 401 and a sensor 402, wherein the sensor 402 may comprise a movable cover plate 403, a spring 404, a detection electronics board 405, a metal base 406. As shown in the drawings, the sensor device may include a metal upper cover, a wave-shaped elastic pad (spring), a sensor body, and a metal base, wherein the sensor body corresponds to a detection electronic board for measuring a distance between the metal upper cover and the metal base. The sensor device is mounted between the mounting surface and the load. It should be noted that the metal upper cover may be omitted, and the sensor body measures the distance between the upper end surface of the waveform elastic pad after rebound and the metal base.

The sensor body may belong to a range-finding type sensor, for example, including infrared reflection type, toF, capacitance type, inductance type, mechanical micro switch, etc., and only the change of the relative distance needs to be measured. The detection electronics board may be implemented in a variety of suitable ways, such as a PCB board or the like. Depending on the type of sensor used, the sensing electronics board may further be provided with various suitable elements.

As an example, in the infrared ranging sensor, at least one group of infrared transceiving sensors, each group including at least one T-emission and R-reception, may be provided on the PCB board, and the amount of signal received by R may be changed when the distance is changed. As an example, an inductive sensor may comprise at least one inductive coil, and a target element (which may also be referred to as "target metal") is provided, and in operation, different distances are measured by measuring mutual inductances resulting from different distances of the target element from the inductive coil. As an example, the capacitive sensor may comprise at least one set of capacitances comprising two electrodes, the loosening of the fastening system being detected from a change in capacitance caused by a change in distance between the two electrodes.

In some embodiments, the state detecting means may further comprise level detecting means for detecting a balanced state of the fastening means, such as a tilted state, a rotation angle, etc. The state detecting means may detect an inclined state of the fastening means with respect to the reference level to detect whether the fastening means is failed by loosening.

In some embodiments, the state detection device may include a gyroscope. Optionally, it may comprise an acceleration sensor for detecting loosening of the fixture. For example, when the detected rotation angle is greater than a predetermined threshold, or when the detected gravitational acceleration is greater than a predetermined threshold, a fault may be considered to exist and may be appropriately presented to the remote controller.

The gyroscope may be coupled to or integrated with the fastening device in various ways. Fig. 5A-5C illustrate some exemplary arrangements of gyroscopes, with bolts shown as examples of fastening means. Fig. 5A shows a fixed load 501, a battery 502, a gyro sensor 503 (optional, an acceleration sensor), and a signal processing unit 504, and fig. 5B and 5C show the fixed load 501 and a sensor module 505. Fig. 5A shows the gyroscope mounted on the bolt, and fig. 5B shows the gyroscope mounted on the nut, which may additionally include an acceleration sensor to detect the rotation angle or gravitational acceleration of the bolt. Fig. 5C shows the gyroscope mounted on a fixed load used to fix the bolts to the tunnel wall or roof, in which case the acceleration sensor may no longer be needed and may tilt when the fastening system is loosened so that the corresponding tilt/rotation angle or gravitational acceleration may be detected.

In some embodiments, it should be noted that the status detection means may be integrated in the monitoring means or located outside and associated with the monitoring means, wherein the two may be coupled in a specific way, e.g. may be connected by an interface.

In some embodiments, the fastening device may further comprise presentation means for presenting the monitored status of the fastening device. Such presentation means may take various suitable forms, for example visual presentation means for visually presenting the status, or audible presentation means for audibly presenting the status, or wireless signaling means for providing the status of the fastening means to an external presentation device by signaling.

In some embodiments, the presentation means may comprise various suitable display devices, such as lamps, e.g. LEDs, etc. displaying different colors. Wherein it is possible to display different colors for different states, for example normally green and abnormally red, so that the operator can clearly distinguish the state of the fastening device.

In some embodiments, the presentation device may employ various suitable sound emitting devices, such as a buzzer or the like. For example, an alarm may be sounded in the event of an abnormality in the fastening device.

In some embodiments, the presentation device may send the status information to a remote control device, such as a center console, using various suitable signaling methods. Such signal transmission may take place wirelessly, for example by broadcasting. The signal sent by the presenting device may include the detected state information, or fault state information sent only if a fault is detected, and may even further include ID information (identity) of the presenting device, so that the remote controller can accurately determine the fault state of the presenting device.

In some embodiments, the wireless signaling of the monitored state may be performed autonomously, e.g., periodically, or whenever an abnormal state is detected, or based on an abnormal state statistic, e.g., upon detection of a certain number of anomalies within a certain time.

In some embodiments, the presentation device comprises a signal interface and a wireless communication element, such as an antenna, capable of being transmitted to the terminal device once the status information is acquired, or capable of being transmitted to the terminal device at specific periods or intervals. Here, the presentation period/interval is the same as or different from the state acquisition period/interval.

In some embodiments, the detection device may further comprise a processor that may perform appropriate processing of the monitored state data.

In some embodiments, processing, such as filtering, noise reduction, encryption, encoding, etc., may be performed prior to signal transmission in order to make the transmitted signal more secure and accurate. Of course, these treatments are not necessary.

In some embodiments, the processor may be further configured to analyze the monitored status data to determine if a fault has occurred. For example, the monitored status data may be compared to a threshold value and if the threshold value is exceeded, a fault is determined. For example, in the case where the monitored state data is distance data, a fault is considered to occur when the distance is greater than a certain threshold value, and/or a fault is considered to occur when the amount of change, offset, of the distance is greater than a certain threshold value.

In some embodiments, where the rendering device wirelessly transmits signals, the rendering device may transmit state data, such as substantially as-is state data, or only filtered, noise reduced, etc., processed state data. The detected status data may be transmitted to a remote control device for status determination at the remote control device.

In some embodiments, where the rendering device wirelessly transmits a signal, the rendering device may transmit the analyzed status data, particularly data indicating whether a fault has occurred. For example, in the case where the processor analyzes the monitored condition, the information sent by the presenting device may be a two-bit value, e.g., 1 indicates normal and 0 indicates abnormal. This may reduce signaling overhead.

In some embodiments, where the rendering device wirelessly transmits signals, the rendering device may signal transmissions only if it is determined that a failure has occurred. For example, the processor may be configured to compare the detected bolt-tightening device state to a particular threshold value and only present the state if the particular threshold value is exceeded. That is, the signal transmission is performed only in the event of a failure. In this way, the signaling overhead may also be reduced.

In some embodiments, the processor may be implemented in various suitable ways, e.g., the processor may include an MCU, be implemented by an FPGA, soC, PCB, etc.

In some embodiments, the presentation device may also provide energy information, in particular energy information, to an external device, so that the external device may monitor the power status of the detection device and power the detection device if the power status is below a certain threshold.

In some embodiments, where the monitoring device is configured with a processor, it may be determined by the processor whether the power state of the detection device is below a particular threshold, and the power state may be transmitted, for example, binarily, if it is determined that the power state is below the particular threshold. As an example, the particular threshold may correspond to a particular proportion of electrical energy, e.g., 40%, 30%, etc., of the capacity of the energy storage device that is insufficient to perform the state detection.

In some embodiments, the signal presentation device may be an antenna for providing the acquired status signal (and optionally the power signal) to an external control device. The antenna as the signal presenting means may be the same as or different from the antenna used for energy harvesting. For example, where both are the same antenna, signal presentation and energy harvesting need to operate at different frequencies, or at different periods of time, to avoid confusion. The two antennas can also be different antennas, so that the logic design of the detection device can be simplified.

In some embodiments, wireless communication between the monitoring device, the energy providing device, the remote controller, etc. may follow suitable communication protocols and techniques, such as 4G, 5G, 6G, even future developed suitable communication protocols and techniques, such as WiFi, bluetooth ^TM, etc. They may belong to the same network, e.g. a local area network, a regional network, a wide area network, etc. The monitoring device, energy delivery device, remote controller, etc. may be produced in a variety of suitable devices depending on the communication protocol and technology being followed, including various antennas, etc., and will not be described in detail herein.

The solution as implemented by the present disclosure enables a further optimized condition monitoring of the fastening device. Conventional methods of manually monitoring conditions are time consuming and require a lot of labor and in certain situations require more deployment. For example, in an application scenario such as a tunnel where a moving vehicle is traveling, it may even be necessary to close the environment for a certain time to perform the detection, which would require a greater amount of labor. By contrast, the scheme of the present disclosure can automatically and spontaneously monitor and transmit the state without manual monitoring, thus effectively reducing the work overhead and rapidly and accurately informing the state of the fastening device.

Fig. 6 illustrates an exemplary implementation scenario, which is a tunnel through which a moving vehicle may pass, according to an embodiment of the present disclosure. Wherein a fastening device according to an embodiment of the present disclosure can be mounted on the tunnel roof for hoisting necessary power lines or other components, as shown at 1 in fig. 6. The monitoring device of the fastening device may be configured to convert vibrations of the fastening device caused by a moving vehicle passing in the vicinity of the fastening device into electrical energy, as shown at 2 in fig. 6. A camera may be mounted on the mobile vehicle for acquiring the signal presented by the signal presenting means, as indicated by 3 in fig. 6. It should be noted that this implementation scenario is merely exemplary, and the fastening device of the present disclosure and its associated monitoring device may be applied to other suitable scenarios, which will not be described in detail herein.

The utility model is not limited to the embodiments shown, but includes or extends to all technical equivalents which fall within the effective scope of the appended claims. The positional references selected in the description, such as, for example, up, down, left, right, etc., refer to the direct description and the drawings shown and can be transferred to new positions in the sense of a change in position.

The features disclosed in the present document can be important for the implementation of the embodiments in different designs and can be implemented not only individually but also in any combination.

Although the present utility model has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present utility model by using the methods and technical matters disclosed above without departing from the spirit and scope of the present utility model, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present utility model are within the scope of the technical matters of the present utility model.

Claims (13)

1. A monitoring device for a fastening device, the monitoring device comprising:

an energy harvesting device configured to convert the vibrations into electrical energy;

An energy storage device configured to store the collected electrical energy and to power the monitoring device;

A state detection device configured to detect a state of the fastening device, and

And a presenting device configured to present the state of the fastening device detected by the sensor.

2. The monitoring device of claim 1, wherein the device comprises a sensor,

The monitoring device is coupled to the fastening device or is integrated with the fastening device.

3. The monitoring device of claim 1, wherein the device comprises a sensor,

The fastening means comprises a threaded fastening means or a unthreaded fastening means.

4. The monitoring device of claim 1, wherein the device comprises a sensor,

The energy harvesting device comprises a piezoelectric device.

5. The monitoring device of claim 1, wherein the device comprises a sensor,

The energy harvesting device is configured to convert vibrations of the fastening device caused by a moving vehicle passing in proximity to the fastening device into electrical energy.

6. The monitoring device of claim 1, wherein the device comprises a sensor,

The energy storage device comprises a capacitor or a rechargeable battery.

7. The monitoring device of claim 1, wherein the device comprises a sensor,

The state detected by the sensor is related to a failure state of the fastening device, wherein the failure state of the fastening device relates to at least one of a fastening state of the fastening device, a movement state of the fastening device, a deformation.

8. The monitoring device of claim 1, wherein the device comprises a sensor,

The sensor includes at least one of a range sensor, a gyroscope.

9. The monitoring device of claim 1, wherein the device comprises a sensor,

The presentation device comprises at least one of an audible presentation device, a visual presentation device, a wireless signal transmission device.

10. The monitoring device of claim 1, wherein the device comprises a sensor,

The presenting means is configured to present information about the detected state of the fixture, or

The presenting means is configured to present a failure state of the fixture only when the fixture failure is detected.

11. The monitoring device of claim 1, wherein the device comprises a sensor,

The monitoring device further includes a processor configured to process the status data detected by the sensor to determine the status of the fastening device.

12. The monitoring device of claim 11, wherein the device comprises a sensor,

The processor includes a comparator configured to compare the information related to the status of the fastening device with a particular threshold and determine that the fastening device is faulty when the information related to the status of the fastening device is greater than the particular threshold, and

The presenting means is configured to present a failure state of the fastening means in case it is determined that the fastening means is failed.

13. A fastening device, characterized in that it comprises a monitoring device according to any one of claims 1-12.