KR102376343B1 - Iot device management system through pdm - Google Patents

Abstract

The present invention relates to an IoT device management system through PDM, which comprises: a state detection unit which transmits a lifespan measurement signal to an IoT device to be managed, to input the characteristics of response data according thereto to an artificial neural network, so that output data thereof is used as a health index, to calculate a residual life expectancy value of the IoT device to be managed; and a calculation unit which calculates a replacement time of the IoT device to be managed, based on the life expectancy predicted by the state detection unit.

Description

IoT device management system through PDM {IOT DEVICE MANAGEMENT SYSTEM THROUGH PDM}

The present invention provides comprehensive management services such as national and urban infrastructure IoT device replacement timing, estimated budget, maintenance notification, etc., and can detect and predict real-time abnormal and accident situations that may occur in IoT devices. Rather, it is possible to monitor the exact abnormal state through the real-time display of the IoT device, and information about the failure state of the IoT device, which can be caused by an accident situation in the future, through linking with PDM and augmented reality (AR) solutions based on wireless sensor devices. It relates to an IoT device management system through PM that can monitor possible situation information and even information on the expected lifespan of IoT devices.

In order to secure the state data of national and urban infrastructure IoT devices, various sensor groups are used, and various platforms and solutions used for device connection and data storage/analysis are being developed. There is a lack of IoT technology, which is essential for optimal PDM (Product Information Integrated Management).

In addition, the remaining life prediction technology is being actively studied in the field of prognostics and health management (PHM), and has recently become more important as IoT devices emerge.

Remaining life prediction can be useful not only for IoT devices but also for high-tech industries such as aviation, nuclear power generation, automobile industry, and semiconductor/display. It is mainly applied to equipment or parts that are expected to cause fatal damage in the event of a sudden abnormality or failure. do. If the remaining life prediction technology is properly used, maintenance costs can be reduced by reducing unnecessary equipment maintenance, and safety can be improved by predicting failures.

Therefore, advanced development of a management system capable of detecting the remaining life or abnormal state of objects such as IoT devices, aviation industry, nuclear power generation, automobile industry, and semiconductor/display should be continuously made.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for the purpose of derivation of the present invention or acquired during the derivation process of the present invention, and it cannot be said that it is necessarily known technology disclosed to the general public before the filing of the present invention. .

Korean Patent Registration No. 10-2216306

The present invention provides comprehensive management services such as national and urban infrastructure IoT device replacement timing, estimated budget, maintenance notification, etc., and can detect and predict real-time abnormal conditions and accident situations that may occur in IoT devices. In addition, it is possible to monitor the exact abnormal state through the real-time display of the IoT device, and information about the failure status of the IoT device through the connection of the wireless sensor device-based PDM and augmented reality (AR) solution, which can occur as an accident situation in the future It provides an IoT device management system through PDM that can monitor possible situation information and even information on the expected lifespan of IoT devices.

Another object of the present invention is to provide an IoT device management system through PDM, which allows an operator to stably move up and down a post on which the IoT device is installed, thereby easily repairing or replacing the IoT device in which an abnormality has occurred. to provide.

Another object of the present invention is to absorb and buffer the impact force when a collision source such as a vehicle or an electric kickboard collides with a pole, thereby securing the stability of the IoT device and protecting the safety of the driver riding on the collision source. It provides an IoT device management system through PDM.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The IoT device management system through PDM according to an embodiment of the present invention transmits a lifespan measurement signal to an IoT device to be managed, inputs the characteristics of response data to the artificial neural network, and converts the output data into health indicators. a state detection unit for calculating a residual life expectancy value of the IoT device to be managed; and a calculator that calculates a replacement time of the IoT device to be managed based on the life expectancy predicted by the state detector.

And, a detection sensor for detecting the state information of the IoT device to be managed; a display unit comprising a communication unit communicating with the detection sensor to receive abnormal state information, and displaying, as image information, content related to the abnormal state through the display unit when receiving an abnormal state information from the detection sensor; and a server for detecting an abnormal state by analyzing the sensing data of the IoT device to be managed detected from the detection sensor and analyzing it.

In addition, the state detection unit may include: a database unit for collecting and storing sensing data obtained from a plurality of detection sensors existing in the IoT device to be managed; a data analysis unit that analyzes the sensing data to analyze an abnormal state and location of a corresponding managed IoT device; and a data prediction unit that predicts an accident situation that may occur in a managed IoT device or predicts the lifespan thereof according to the detection result by the data analysis unit, wherein the abnormality detected by the state detection unit or the server The status includes information on the failure state of the IoT device to be managed, information on a situation that is likely to occur in a future accident situation, or information on the expected life of the equipment to be managed. When the sensing data collected from the detection sensor is vibration data, The data analysis unit analyzes the amplitude and natural vibration frequency of the collected vibration data to estimate the failure state and expected lifespan of the corresponding managed facility, and if the sensing data collected from the detection sensor is current data, the data analysis The department analyzes the current consumption and current waveform (frequency and sine wave shape information) from the collected current data to estimate the failure state and expected lifespan of the facility to be managed, and the sensing data collected from the detection sensor In the case of temperature data, the data analysis unit estimates the failure state and life expectancy of the IoT device to be managed by analyzing the trend of the peak temperature value and accumulated temperature data of the corresponding managed facility from the collected temperature data.

In addition, the management target IoT device is disposed in the form of surrounding the post is installed, the lifting unit that can be lifted along the support; At least one or more is installed on the upper side of the support, the lift driving unit for elevating the lifting unit; a support part installed on one side and the other side of the lifting unit, respectively, and supporting the foot of the worker; a storage box installed in the lifting unit to be disposed in an area between the support units, in which a repair tool for repairing the IoT device to be managed is accommodated; It further includes; a shock alleviator disposed in the form of surrounding the lower side of the post.

In addition, the lifting unit, a first wrapping portion surrounding 1/2 of the support; a second wrapper that surrounds the remaining 1/2 of the post, and is coupled to the first wrapper; and at least one roller installed on the inner surface of the first wrapping portion and the second wrapping portion, respectively, and rolling along the outer surface of the post.

And, the lifting driving unit, a plurality of motors installed to be spaced apart from each other on the upper side of the support; a drum coupled to each of the motors and rotated in a forward or reverse direction by the power of the motor; And an upper side is fixed to the drum, respectively, the lower side is coupled to the first wrapper or the second wrapper, while winding or unwinding the rotating drum elevating wire for raising or lowering the elevating portion; includes.

In addition, the support portion, each coupled to the first wrapping portion and the second wrapping portion, a pair of cases opposed to each other with the support interposed therebetween; Elevating cylinders respectively accommodated in the inner space of the case; And it includes a; and a footrest each protruding to the upper side of the case to support the foot of the operator, raised or lowered by the elevating cylinder.

In addition, the shock alleviation unit is coupled to the outer surface of the post to be spaced apart from each other, and a buffer unit formed in a 'C' cross-sectional shape to cushion the shock; a base having an accommodating space in which the lower region of the post is accommodated, an inner wall surface of the accommodating space facing the buffer part, and formed in a rectangular block shape; Protection units respectively installed on the inner wall surface of the receiving space of the base; a box unit installed on the outer surface of the base, one side of which is opened, and an empty space formed therein; a collision plate which is disposed in the opening of the box portion, respectively, and a collision source collides with; a pocket portion supporting the collision plate in a state in which the box portion is spaced apart from each other by a predetermined distance in the empty space of the box portion, and air is filled therein; By supporting the pocket parts in the empty space of the box part, the front and rear are open and the empty space is formed therein, and the square frame is coupled to each other vertically and horizontally in the empty space of the square frame to support the pocket parts a dispersing unit including a plurality of dispersing bars; A first elastic support part formed in a 'C' cross-sectional shape to elastically support the dispersion part, and connected to one end of the first elastic support part, a plurality of peaks and valleys are continuously crossed in the longitudinal direction to compress or a multi-impact absorbing part including a second elastic support part expandable and a fixing bar connected to one end of the second elastic support part and having one end fixed to the inner wall surface of the box part; each of the shock sensors installed in the box; a locking part accommodated in a locking groove provided on the bottom surface of the base to prevent the base from flowing; and a withdrawal cylinder embedded in the ground and withdrawing from the locking groove by lowering the locking part when the impact sensor detects an impact.

In addition, the protection part is spaced apart from the buffer part by a predetermined distance, and the base and the box part slide in a direction to which the impact force of the collision source is applied, and the buffer part elastically supports the protection part that has been moved together with the base.

According to one aspect of the present invention described above, it provides comprehensive management services such as national and urban infrastructure IoT device replacement timing, estimated budget, maintenance notification, etc., and real-time abnormal conditions and accident situations that may occur in IoT devices not only detect and predict, but also monitor the exact abnormal state through the real-time display of IoT devices. , it has the effect of monitoring the situation information that is likely to occur in the future as well as the expected lifespan information of IoT devices.

In addition, there is an effect that allows the operator to stably move up and down the post on which the IoT device is installed to easily repair or replace the IoT device in which an abnormality has occurred.

In addition, when a collision source such as a vehicle or an electric kickboard collides with a pole, the impact force is absorbed and buffered, thereby securing the stability of the IoT device and protecting the safety of the driver riding in the collision source. .

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the range apparent to those skilled in the art from the following description.

1 is a block diagram illustrating an IoT device management system through a PM according to an embodiment of the present invention.
FIG. 2 is a view showing a lifting unit, a lifting driving unit, a support unit, and a shock mitigating unit applied to the IoT device management system through the PM according to an embodiment of the present invention.
FIG. 3 is a plan view showing a lifting unit, a lifting driving unit, a support unit, and a shock mitigating unit applied to the IoT device management system through a PDM according to an embodiment of the present invention.
4 is a view showing a coupling state of the wrapping part and the support part applied to the IoT device management system through PDM according to an embodiment of the present invention.
5 is a plan view illustrating a shock absorber applied to the IoT device management system through PDM according to an embodiment of the present invention.
6 is a view showing a pocket unit and a dispersion unit applied to the IoT device management system through the PM according to an embodiment of the present invention.
7 is a view showing a base and a locking unit applied to the IoT device management system through the PM according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents as those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a block diagram illustrating an IoT device management system through a PM according to an embodiment of the present invention.

The IoT device management system through PDM according to an embodiment of the present invention provides comprehensive management services such as national and urban infrastructure IoT device replacement time, estimated budget, maintenance notification, etc. In addition to being able to detect and predict real-time anomalies and accident situations, it is possible to monitor an accurate abnormal state through a real-time display of an IoT device, and a state detection unit 10 and a calculation unit 20 And, it may include at least any one or more of the detection sensor 30 and the display unit 40 .

In this case, the IoT device may be a street light, a traffic light, a CCTV, etc., and the drawing shows an example in which the IoT device is applied as a CCTV.

Furthermore, the IoT device management system to be managed through PDM according to an embodiment of the present invention is not only a street light, a traffic light, a CCTV, but also a drive motor, an air conditioner, a refrigerator, a boiler, etc. installed in various industrial sites or buildings indicates that it can also be applied to

As an example, the state detection unit 10 transmits a lifespan measurement signal to the IoT device 100 to be managed through a server, inputs the characteristics of response data thereto to an artificial neural network (ANN), and outputs the result. By making the data a health index, it is possible to calculate a residual life expectancy value of the IoT device 100 to be managed.

The state sensing unit 10 may include a learning data generating unit that generates the output data as learning data for artificial neural network learning.

The state sensing unit 10 may include a neural network learning unit for learning the artificial neural network by using the lifespan measurement signal as an input value and using output data of the learning data corresponding to the input value as an output value corresponding to the lifespan measurement signal.

Then, the calculation unit 20 is the IoT device to be managed based on the predicted value of the remaining life of the IoT device 100 to be managed by deep learning learning using the artificial neural network learned through the neural network learning unit of the state sensing unit 10 . (100) is configured to calculate the replacement timing.

In this case, the above-described state detector 10 may include, for example, a data converter, a predictive model generator, a residual life state detector 10 , and a storage unit.

The data converter may convert each of a plurality of vibration signals output from a vibration sensor installed on a specific part constituting the IoT device 100 to be managed into a two-dimensional image (or two-dimensional image data).

Specifically, the data converter may extract a characteristic of the time-frequency domain domain from the one-dimensional vibration signal, and convert the extracted characteristic into a two-dimensional image including a time axis and a frequency axis.

Here, the characteristic may mean wavelet coefficients, and one vibration signal may be converted into one image.

In addition, the data converter may convert the prediction target vibration signal into a two-dimensional image signal in order to predict the remaining life.

The predictive model generator may generate a predictive model capable of predicting the remaining lifespan (RUL) of the IoT device 100 to be managed. Specifically, the predictive model generator may generate an artificial neural network (ANN) model, and learn the ANN model using the two-dimensional images generated by the data converter.

ANN may be CNN (Convolutional Neural Network, convolutional neural network), but the scope of the present invention is not necessarily limited to the type of artificial neural network. In addition, the predictive model generator may predict the remaining life of the equipment or parts using a predetermined predictive algorithm, for example, a GPR algorithm (Gaussian Process Regression algorithm). That is, the predictive model generated by the predictive model generator may be understood as a concept including an ANN model (or CNN model) and a GPR algorithm.

The remaining life state detection unit 10 may predict the remaining life span (RUL) of the IoT device 100 to be managed based on a vibration signal measured by a vibration sensor installed in the IoT device 100 to be managed. Specifically, the vibration signal of the IoT device 100 to be managed is converted into a two-dimensional image by the data conversion unit, and the residual life state detection unit 10 converts the two-dimensional image into a predictive model generated by the predictive model generator. By using it as an input of , it is possible to predict the remaining lifespan (RUL) of the IoT device 100 to be managed.

The storage unit includes a plurality of vibration signals, a plurality of two-dimensional images generated by the data conversion unit, a prediction target vibration signal, a two-dimensional image generated from the prediction target vibration signal, a prediction model generated by the prediction model generator, A vibration signal, etc. generated from the evaluation target equipment or the evaluation target part may be stored.

The vibration signal may be a vibration signal measured over a whole lifetime in a particular bearing.

In the present invention, continuous wavelet transform (CWT) is used to extract features (eg, image features) from a vibration signal. According to an embodiment, the continuous wavelet transform may be a Morlet-based CWT.

The prediction model generator may generate a convolutional neural network (CNN) model. For feature extraction, the CNN model may include four alternately connected convolutional layers and four pooling layers. The filter size of the convolutional layer is 3Х3, and the filter size of the max pooling layer is 2Х2. A channel of each of the four convolutional layers may be 32, 64, 128, or 256. The final layer of the CNN model includes a flatten layer, two fully connected layers and an output layer.

After going through the convolutional layers, the 2D feature map is flattened and connected to the fully connected layer. In fully connected layers, 2560 and 768 nodes are selected respectively. Finally, the last fully connected layer and an output neuron may be connected to obtain a health indicator (HI).

The ReLU function is available, which is applied to the convolutional layer and the fully connected layer, and outputs the output to normalize the health indicator (HI) value to a value between 0 and 1 (which may contain 0 and 1 ). A sigmoid function can be used in a layer. After parameter setting is completed, the CNN model is trained to minimize the loss function. That is, the prediction model generator may learn the CNN model using the image data generated by the data converter.

As another example, in this case, the above-described state detection unit 10 may include, as another example, a database unit for collecting and storing sensing data obtained from a plurality of detection sensors 30 present in the managed IoT device 100 ; a data analysis unit that analyzes the sensing data to analyze the abnormal state and location of the IoT device 100 to be managed; and a data prediction unit that predicts an accident situation that may occur in the IoT device 100 to be managed according to the detection result by the data analysis unit or predicts the lifespan thereof.

Furthermore, the abnormal state detected by the state detection unit 10 includes information on a failure state of the IoT device 100 to be managed, information on a situation that may occur in a future accident situation, or information on the expected lifespan of the equipment to be managed. can do.

And, when the sensing data collected from the detection sensor 30 is vibration data, the data analysis unit analyzes the amplitude and natural vibration frequency of the collected vibration data to estimate the failure state and expected lifespan of the corresponding managed facility, If the sensing data collected from the detection sensor 30 is current data, the data analysis unit analyzes the current consumption and the current waveform (frequency and sine wave shape information) from the collected current data when operating the facility, and Estimate the failure state and expected lifespan, and when the sensing data collected from the detection sensor 30 is temperature data, the data analysis unit analyzes the temperature peak value and the cumulative temperature data of the corresponding management target facility from the collected temperature data. The failure state and expected lifespan of the IoT device 100 to be managed may be estimated.

On the other hand, the detection sensor 30 detects the state information of the IoT device 100 to be managed.

After receiving the sensing data of the IoT device 100 to be managed from the detection sensor 30, the server analyzes it and detects an abnormal state.

The display unit 40 communicates with the detection sensor 30, and includes a communication unit (network communication network) that receives the detection result of the abnormal state from the server, and displays the content related to the detection result (abnormal state) as image information, It is displayed on the remote monitoring computer through the display unit.

The detection sensor 30 is a smart device for acquiring sensing data used to detect an abnormal state of the IoT device 100 to be managed, and may be applied differently depending on the characteristics of the IoT device 100 to be managed, for example. , the detection sensor 30 is preferably at least one of a current sensor, an acceleration sensor, a gyro sensor, and a temperature sensor. However, the type is not limited in the present invention, and not only a gas detection sensor, but also a photographing means such as a camera, a camcorder, etc. may be included.

The detection sensor 30 may be present in the sensing space of the managed IoT device 100 to acquire various types of sensing data for detecting an abnormal state of the managed IoT device 100 .

The server receives the sensing data of the IoT device 100 to be managed from the sensor through the gateway and the network or commercial wireless network installed in the field facility and analyzes it.

The server collects sensing data from each detection sensor 30 and analyzes the collected sensing data to detect an abnormal state of the IoT device 100 to be managed.

Here, the server collects and stores the sensing data obtained from the plurality of detection sensors 30 existing in the plurality of managed IoT devices 100 , and provides real-time facility status information and information for each managed IoT device 100 . a database unit in which a facility identification code for classifying a plurality of management target facilities is stored; and a data analysis unit that analyzes the real-time sensing data stored in the database unit to analyze the abnormal state and location of the IoT device 100 to be managed.

The data analyzer may detect an abnormal state of the IoT device 100 to be managed and its location by comparing the collected sensing data with pre-stored learning data or statistical data. Here, the abnormal state is a situation in which the IoT device 100 to be managed has difficulty in achieving its purpose or purpose or is likely to occur as an accident situation afterward, or furthermore, the estimated lifespan estimation and failure of the managed facility It may also include information.

In this case, the estimated lifespan of the managed IoT device 100 and the diagnosis of failure can be performed, for example, in the case of CCTV, by analyzing the consumption current pattern of the electric device to estimate the expected life and diagnose the failure.

In addition, the server may detect an abnormal state of the IoT device 100 to be managed by using various analysis techniques or algorithms, and the analysis technique or algorithm may vary depending on the IoT device 100 to be managed or the type of sensing data, etc. can

In addition, the server may predict the expected lifespan of the IoT device 100 to be managed or an accident situation that may occur according to the detection result of the abnormal state. Here, the accident situation is a dangerous situation in which the IoT device 100 to be managed cannot achieve its purpose or purpose, and may correspond to, for example, a gas explosion situation, a fire situation, an earthquake occurrence situation, and the like.

On the other hand, the server checks the abnormal state of the corresponding management target facility based on its analysis data, transmits the abnormal state signal to the mobile device of the worker of the corresponding facility, and as will be described later, the shape of the facility through the QR code of the facility, etc. According to the recognition of information, the type of sensor and the location of the sensor are checked, the operator can check the equipment status through the augmented reality screen, and the equipment with an abnormality can be maintained according to the status result.

The display unit receives the detection result of the abnormal state from the server, and serves to display the content related to the detection result as image information.

That is, the display unit may acquire an image of the IoT device 100 to be managed captured by the detection sensor 30 , and display the acquired image by matching the content related to the detection result received from the server.

In this case, the image is implemented as a three-dimensional image, and information on the abnormal state of the IoT device 100 to be managed corresponding to the image is matched, and the image can be monitored three-dimensionally according to the facility code inquiry through the screen.

Here, the display unit may display the screen of the augmented reality state by synthesizing the content related to the detection result with the obtained image. According to augmented reality technology, IoT platform-based sensor data is created in the form of AR content to provide IoT visual data more intuitively in real space (stereoscopic image of the facility to be managed, current data collected in real time, and It has the advantage of preventing dangerous situations and tracking exceptional situations by simultaneously displaying the normal operating range value, etc.).

Meanwhile, the display unit may be a monitor provided in a remote monitoring computer installed in a general control center that can communicate with the server through a network communication network.

Also, the display unit may be a screen provided in a mobile device of an operator or manager associated with the corresponding managed IoT device 100 that can communicate with the server through a network communication network.

Accordingly, a user who owns a mobile device can more intuitively and simply determine whether an abnormal state has occurred or is likely to occur in the managed IoT device 100 in which he or she is currently located.

In addition, the server detects an abnormal state of the managed IoT device 100 corresponding to the current location information of the mobile device, and predicts an accident situation that may occur in the managed IoT device 100 according to the detection result. Then, the prediction result of the accident situation may be transmitted to the mobile device.

The mobile device may receive the prediction result of the accident situation from the server, synthesize the content related to the detection result with the acquired image, and display it through the screen of the augmented reality state. Accordingly, a user who owns a mobile device can more intuitively and conveniently determine whether an accident situation is likely to occur in the managed IoT device 100 in which he or she is currently located.

A mobile device is a terminal possessed by a user, for example, an electronic device such as a smartphone, a laptop computer, a tablet PC, a PDA, etc., a photographing means for acquiring a front image such as smart glasses, smart goggles, a smart helmet, and the like, and displays the image It is used in a broad sense including all of a head mounted display (HMD) equipped with a screen for

Next, with reference to FIGS. 2 to 7 , the lifting unit 50 , the lifting drive unit 60 , the support unit 70 , and the storage box 80 applied to the management system of the IoT device 100 to be managed through the PDM ) and the shock mitigating unit 90 will be described.

FIG. 2 is a view showing a lifting unit, a lifting driving unit, a support unit, and a shock mitigating unit applied to the IoT device management system through the PM according to an embodiment of the present invention.

FIG. 3 is a plan view showing a lifting unit, a lifting driving unit, a support unit, and a shock mitigating unit applied to the IoT device management system through a PDM according to an embodiment of the present invention.

4 is a view showing a coupling state of the wrapping part and the support part applied to the IoT device management system through the PM according to an embodiment of the present invention.

5 is a plan view illustrating a shock absorber applied to the IoT device management system through PDM according to an embodiment of the present invention.

6 is a view showing a pocket unit and a dispersion unit applied to the IoT device management system through the PM according to an embodiment of the present invention.

7 is a view showing a base and a locking unit applied to the IoT device management system through the PM according to an embodiment of the present invention.

The lifting unit 50 , the lifting driving unit 60 , and the supporting unit 70 are the IoT devices installed on the upper side of the support post 110 , so that when an abnormality occurs in the IoT device 100 to be managed, a worker located on the ground is installed above the holding unit 110 . (100), and when the repair of the IoT device 100 to be managed is completed, the operator located above the holding post 110 is lowered to the ground.

First, the lifting unit 50 surrounds the outer surface of a predetermined area of the support post 110 on which the IoT device 100 to be managed is installed, and may be lifted along the support post 110 .

To this end, the lifting unit 50 may include a first wrapper 51 , a second wrapper 52 , and a roller 53 .

The first wrapper 51 and the second wrapper 52 have a structure that can wrap 1/2 of the post 110 , respectively.

Since the drawing shows an example in which the post 110 is formed in a circular cross section, the first wrapping part 51 and the second wrapping part 52 have a substantially "C" cross-sectional shape to correspond to the cross-sectional shape of the post 110, respectively. can be formed with

Accordingly, the first wrapper 51 wraps around 1/2 of the post 110 , and the second wrapper 52 wraps around the other half of the post 110 .

In addition, the curved coupling band 54 is bolted to both sides of the first wrapping portion 51 and the second wrapping portion 52 in contact with each other.

For this reason, the first wrapper 51 and the second wrapper 52 are integrally coupled to surround the outer surface of a predetermined area of the post 110 .

At least one roller 53 is installed on the inner surface of the first wrapping portion 51 and the second wrapping portion 52, respectively.

The roller 53 rolls along the outer surface of the post 110 when the first wrapper 51 and the second wrapper 52 are lifted by the lift driving unit 60 .

Through the roller 53 , the first wrapping part 51 and the second wrapping part 52 may be stably raised and lowered along the post 110 .

At least one lift driving unit 60 is installed on the upper side of the support post 110 to elevate the lifting unit 50 .

Although the drawing shows an example in which two lift drive units 60 are applied, the number of lift drive units 60 is not limited to two.

The lifting driving unit 60 may include a motor 61 , a drum 62 , and a lifting wire 63 .

The motor 61 is installed on the upper surface of the post 110 to be spaced apart from each other.

The motor 61 may be formed of an AC motor 61 or a DC motor 61 whose shaft is rotated in a forward or reverse direction.

The drums 62 are each coupled to a motor 61 . The drum 62 may be rotated in place by the power of the motor 61 .

The drum 62 rotates in the forward direction when the motor 61 shaft of the motor 61 rotates in the forward direction, and rotates in the reverse direction when the motor 61 shaft of the motor 61 rotates in the reverse direction. As the elevating wire 63 is wound or unwound.

The lifting wire 63 is composed of two pairs.

Any one of the lifting wires 63 has an upper side fixed to any one drum 62 , and a lower side fixed to a first bracket 511 formed on the upper surface of the first wrapper 51 .

The other lifting wire 63 has an upper layer fixed to the other drum 62 , and a lower side fixed to a second bracket 521 formed on the upper surface of the second wrapping part 52 .

The lifting wire 63 is wound around the drum 62 when the drum 62 is rotated in the forward direction to raise the first wrapper 51 and the second wrapper 52 .

And, the lifting wire 63 is unwound from the drum 62 when the drum 62 is rotated in the reverse direction to lower the first wrapper 51 and the second wrapper 52 .

The support part 70 is installed on one side and the other side of the lifting part 50, respectively, and is configured to support the feet of the operator.

To this end, the support unit 70 may include a case 71 , an elevating cylinder 72 , and a footrest unit 73 .

The case 71 is composed of two pairs and is respectively coupled to one side of the first wrapper 51 and the second wrapper 52 . Accordingly, the case 71 is disposed to face each other with the posts 110 interposed therebetween.

The case 71 has an open upper surface and an empty space therein to accommodate the elevating cylinder 72 .

The lower surface of the lifting cylinder 72 is fixed to the empty space bottom surface of the case 71 .

And, a part of the piston of the lifting cylinder 72 protrudes toward the upper side of the case 71 .

The lifting cylinder 72 may be formed as a hydraulic cylinder in which a piston is raised or lowered as hydraulic pressure is injected or discharged.

The footrest part 73 is coupled to the upper end of the piston of the elevating cylinder 72 and protrudes upward from the case 71, respectively.

One of the footrests 73 supports the operator's right foot, and the other footrest 73 supports the operator's left foot.

A fixing band 731 for wrapping and fixing the feet of the operator is formed on the upper surface of the footrest portion 73 .

The footrest 73 may be raised or lowered by a predetermined distance by the elevating cylinder 72 .

When the lifting unit 50 is raised to a predetermined height through the lifting drive unit 60, if the operator's hand does not touch the IoT device 100 to be managed, the lifting cylinder 72 is driven to drive the footrest unit 73 is increased by a predetermined distance.

In this way, the lifting unit 50 can be precisely raised through the lifting drive unit 60, and the roller 53 is reduced in friction with the post 110 while not operating the lifting drive unit 60. ) to reduce wear.

By the operation of the lifting unit 50, the lifting driving unit 60 and the supporting unit 70 described above, the operator located on the ground is raised to the managed IoT device 100 installed above the holding post 110, or, It is possible to lower the operator located on the upper side of the post 110 to the ground. Accordingly, it is possible to easily repair the managed IoT device 100 positioned above the post 110 .

The storage box 80 is installed on the outer surface of the first wrapping portion 51 and the outer surface of the second wrapping portion 52 so as to be disposed in the region between the support portions 70 .

The storage box 80 may have a box structure in which an upper surface is opened and a storage space is formed therein.

Accordingly, various repair tools or parts for repairing the IoT device 100 to be managed may be stored in the storage box 80 to easily repair the IoT device 100 to be managed.

And, since the storage box 80 is formed in the first wrapping portion 51 and the second wrapping portion 52, respectively, the repair tools or parts held in the right hand can be stored and stored in the storage box 80 located on the right side, Repair tools or parts held in the left hand may be stored and stored in the storage box 80 located on the left.

On the other hand, the shock alleviation unit 90 is disposed in a shape surrounding the lower side of the support post 110, to protect the support post 110 from a vehicle collision.

That is, by protecting the post 110 through the shock mitigating unit 90 , the managed IoT device 100 installed on the post 110 can be safely protected from a vehicle collision.

The shock alleviation unit 90 includes a buffer unit 91 , a base 92 , a protection unit 93 , a box unit 94 , a collision plate 95 , a pocket unit 96 , and a dispersion It may include a part 97, a multiple shock absorbing part 98, an impact sensor 99, a locking part 90a, and a withdrawal cylinder 90b.

The buffer part 91 is installed so that the outer surface of the support post 110 is spaced apart from each other. The buffer part 91 is formed in a 'C' cross-sectional shape to buffer the impact force of the collision source.

In addition, the buffer unit 91 is compressed to a certain level when an impact is applied, and when the impact is extinguished, it expands again and is formed of an elastic material such as metal so that it can be restored to its original state.

The base 92 is formed in the shape of a square block and is seated on the ground. The base 92 has an accommodation space 921 in the center in which the lower region of the post 110 is accommodated.

Accordingly, the base 92 forms a structure surrounding the outer surface of the post 110 .

The four inner wall surfaces 922 of the accommodation space 921 are spaced apart from each other by a predetermined distance while facing the buffer portion 91 .

The protection part 93 is formed in a substantially rectangular plate shape and is respectively installed on the inner wall surface 922 of the receiving space 921 of the base 92 .

Accordingly, the combined shape of the protection part 93 may be formed in a substantially rectangular box shape.

The protection unit 93 is in contact with the buffer unit 91 when a vehicle crashes, and may be formed of a rubber or silicone material to protect the buffer unit 91 .

A total of four box portions 94 are installed on the four outer surfaces of the base 92, respectively.

The box portion 94 is formed in a box shape in which one side facing the collision source is opened and an empty space is formed therein.

In this case, the collision source may be a vehicle, a motorcycle, an electric quick board, an electric bicycle, or the like.

The collision plates 95 are respectively disposed in the openings of the box portion 94 . The collision plate 95 is formed in a substantially rectangular plate shape to cover the opening of the box part 94 . A collision source collides with the collision plate 95 .

The collision plate 95 may be formed of a rubber material to absorb the collision source impact.

A plurality of pocket portions 96 are applied to support the collision plate 95 in a state in which they are spaced apart from each other at regular intervals in the empty space of the box portion 94 .

The pocket portion 96 may be formed of a tube material, and the inner space thereof is filled with air.

At this time, an injection hole (not shown) for filling air is formed on the upper surface of the pocket portion 96 .

The inlet of the pocket part 96 may be opened and closed by an electromagnetic valve. Therefore, after connecting the supply pipe of the air tank to the inlet, the inlet is opened through the solenoid valve to fill the inner space of the pocket portion 96 with air.

The pocket part 96 relieves the impact force of the collision source while supporting the collision plate 95 when the collision source collides with the collision plate 95 .

The pocket portion 96 may be formed in various shapes such as a rectangular shape, a ball shape, and the like, and an example formed in a rectangular shape is shown in the drawings.

The dispersion unit 97 may include a rectangular frame 971 and a dispersion bar 972 .

The rectangular frame 971 is disposed in the empty space of the box portion 94, and has a structure in which front and rear are opened and an empty space is formed therein.

The distribution bar 972 may be coupled to cross each other in the vertical and horizontal directions in the empty space of the rectangular frame 971 to support the pocket portions 96 .

That is, the pocket portions 96 are fixed and supported on the distribution bar 972 in a structure spaced apart from each other by a predetermined distance.

Therefore, when a collision source collides with the collision plate 95, the pocket portion 96 primarily relieves the impact force of the collision source, and the impact force applied to the pocket portion 96 is transmitted to the distribution bars 972. become and disperse

The multiple shock absorbing part 98 may include a first elastic support part 981 , a second elastic support part 982 , and a fixing bar 983 .

The multiple shock absorbing part 98 is applied in plurality to stably absorb the impact force of the collision source, and is spaced apart from each other by a predetermined distance in the vertical and horizontal directions between the dispersing part 97 and the inner wall surface 922 of the box part 94 . is interposed

A plurality of first elastic support parts 981 are applied between the dispersion part 97 and the inner wall surface 922 of the box part 94 .

Accordingly, a portion of the first elastic support portion 981 supports the square frame 971 and the other portion supports the distribution bar 972 .

The first elastic support part 981 is formed in a 'C' cross-sectional shape so as to cushion the impact force of the collision source applied to the dispersion part 97 while elastically supporting the dispersion part 97 .

In addition, the first elastic support portion 981 is compressed to a certain level when an impact is applied, and is expanded again when the impact is extinguished and is formed of an elastic material such as metal so that it can be restored to its original state.

The second elastic support portion 982 is integrally connected to one end of the first elastic support portion 981 .

The second elastic support portion 982 is formed by successively crossing a plurality of peaks 9821 and valleys 9822 along the longitudinal direction. The second elastic support part 982 is compressed to a certain level when an impact is applied, and is expanded again when the impact is extinguished and formed of an elastic material such as metal so that it can be restored to its original state.

The fixing bar 983 is integrally connected to one end of the second elastic support portion 982 . One end of the fixing bar 983 is fixed to the inner wall surface 922 of the box portion 94 .

The fixing bar 983 supports the first elastic support part 981 and the second elastic support part 982 to be compressed to a certain level by the impact force of the collision source.

Therefore, when a collision source collides with the collision plate 95 , the collision plate 95 is pushed in the collision direction to primarily absorb and relieve the impact force, and then the pocket part 96 is formed in the inner space of the box part 94 . The collision force is secondaryly alleviated while being pushed by the collision force of the collision source that is pushed into the ) are elastically compressed by the collision force of the collision source and absorb the collision force.

Due to this, it is possible to prevent the post 110 from being damaged or overturned, and to stably protect the managed IoT device 100 installed on the post 110 .

The impact sensor 99 is installed in the box portion 94, respectively.

The impact sensor 99 detects the impact force when a collision source collides with the box unit 94 .

In this case, the impact sensor 99 may be installed on the collision plate 95 .

The locking part 90a is accommodated in the locking groove 92a provided on the bottom surface of the base 92 .

The locking groove 92a may be formed at a predetermined depth in each corner portion of the bottom surface of the base 92 .

Since the base 92 is formed in a rectangular box shape, four locking grooves 92a are formed.

Accordingly, four locking portions 90a are also applied to be accommodated in the locking grooves 92a, respectively.

The withdrawal cylinder 90b may be formed as a hydraulic cylinder in which a piston is raised or lowered as hydraulic pressure is supplied or discharged.

Four withdrawal cylinders 90b are applied, are disposed at positions corresponding to the locking grooves 92a of the base 92, and are buried in the ground. A locking portion (90a) is coupled to the upper end of the piston of the withdrawal cylinder (90b).

The shock sensor 99 transmits a detection signal to the control unit when detecting an impact, and the control unit controls the piston of the withdrawal cylinder 90b to descend, thereby withdrawing the locking unit 90a from the locking groove 92a.

Next, an operation example of the shock mitigating unit 90 described above will be described.

First, the inner wall surface 922 of the receiving space 921 of the above-described base 92 is formed to a size that can be spaced apart from the buffer 91 installed on the post 110 . Accordingly, the base 92 and the box portion 94 may be moved in a direction in which the impact force of the collision source is applied.

That is, when a collision source collides with the collision plate 95 of the shock mitigating unit 90 located on the left side with reference to FIG.

At this time, the impact sensor 99 may be programmed to detect the impact only when the impact applied to the box portion 94 or the collision plate 95 is greater than or equal to a preset value.

For example, the impact sensor 99 may be programmed to detect the impact only when the vehicle that is the cause of the collision collides at a speed of about 5 km to 30 km per hour or more.

Accordingly, even if a pedestrian accidentally collides with the box unit 94 or the collision plate 95 , the impact sensor 99 does not detect the impact.

However, when the collision source vehicle collides at a speed of about 5 km to 30 km per hour or more, the shock sensor 99 detects the shock and transmits it to the control unit, and the control unit operates the withdrawal cylinder 90b. Accordingly, the piston of the withdrawal cylinder 90b descends and the locking portion 90a is withdrawn from the locking groove 92a.

When the locking part 90a is withdrawn from the locking groove 92a, the box part 94 in which the collision source collides is pushed, and accordingly, the base 92 also slides in the direction in which the impact force of the collision source is applied.

In addition, in the process where the collision source collides with the collision plate 95 and the box unit 94 and the base 92 move in the direction in which the impact force is applied, the pocket unit 96, the dispersion unit 97, and multiple shock absorption As the portion 98 acts to absorb and relieve the impact force, the impact force generated when the protection portion 93 collides with the buffer portion 91 is reduced. And, the buffer 91 buffers the impact force of the collision source once more.

Accordingly, structural stability of the post 110 can be secured, and the managed IoT device 100 installed on the post 110 can be safely protected from a vehicle collision.

Furthermore, since the pocket portion 96 and the multiple impact absorbing portion 98 interact with each other to resist the impact source and push the impact source, it is possible to reduce the impact force of the impact source transmitted to the post 110 . Furthermore, it is possible to prevent the post 110 from being excessively pushed by the collision source, and it is possible to reduce the damage rate of the collision source while protecting the safety of the driver riding in the collision source.

The above-described embodiments are for illustration, and those of ordinary skill in the art to which the above-described embodiments pertain can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims described below rather than the above detailed description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: state detection unit 20: calculation unit
30: detection sensor 40: display unit
50: lifting unit 51: first wrapping unit
52: second wrapping part 53: roller
60: lift drive unit 61: motor
62: drum 63: elevating wire
70: support 71: case
72: elevating cylinder 73: footrest
80: storage box 90: shock mitigation unit
90a: locking part 90b: withdrawal cylinder
91: buffer 92: base
92a: locking home 921: accommodation space
922: inner wall surface 93: protection part
94: box part 95: collision plate
96: pocket part 97: dispersion part
971: square frame 972: dispersion bar
98: multiple shock absorbing part 981: first elastic support part
982: second elastic support part 9821: apex
9822: bone 983: fixed bar
99: impact sensor 100: managed IoT device
110: holding

Claims (3)

a state detection unit that transmits a lifespan measurement signal to the IoT device to be managed, inputs characteristics of response data to the artificial neural network, and converts the output data into a health index to calculate a residual life expectancy value of the IoT device to be managed;
a calculation unit for calculating a replacement time of the IoT device to be managed based on the lifespan predicted by the state sensing unit;
a lifting unit disposed in a shape surrounding a post on which the IoT device to be managed is installed, and capable of being lifted along the post;
At least one or more is installed on the upper side of the support, the lift driving unit for elevating the lifting unit;
a support part installed on one side and the other side of the lifting unit, respectively, and supporting the foot of the worker;
a storage box installed in the lifting unit so as to be disposed in an area between the support units, in which a repair tool for repairing the IoT device to be managed is accommodated; and
Including; and a shock alleviator disposed in a shape surrounding the lower side of the post;
The lifting unit,
A first wrapper surrounding 1/2 of the support;
a second wrapper that surrounds the other half of the support and is coupled to the first wrapper; and
At least one roller is installed on the inner surface of the first wrapping portion and the second wrapping portion, respectively, and rolling along the outer surface of the support; includes,
The elevating drive unit,
A plurality of motors installed to be spaced apart from each other on the upper side of the support;
a drum coupled to each of the motors and rotated in a forward or reverse direction by the power of the motor; and
The upper side is respectively fixed to the drum, the lower side is coupled to the first wrapper or the second wrapper, and a lifting wire for lifting or lowering the lifting unit while being wound or unwound on the rotating drum; includes,
The support part,
a pair of cases each coupled to the first wrapping portion and the second wrapping portion and facing each other with the posts interposed therebetween;
Elevating cylinders respectively accommodated in the inner space of the case; and
Including; and a footrest that each protrudes to the upper side of the case to support the foot of the operator and is raised or lowered by the elevating cylinder;
The shock mitigating unit,
a buffer portion coupled to the outer surface of the post to be spaced apart from each other, and formed in a 'C' cross-sectional shape to cushion impact;
a base having an accommodating space in which the lower region of the post is accommodated, an inner wall surface of the accommodating space facing the buffer part, and formed in a rectangular block shape;
Protection units respectively installed on the inner wall surface of the receiving space of the base;
a box unit installed on the outer surface of the base, one side of which is opened, and an empty space formed therein;
a collision plate disposed in the opening of the box portion, respectively, and a collision source collides with;
a pocket part supporting the collision plate in a state in which it is spaced apart from each other in an empty space of the box part and filled with air;
By supporting the pocket portions in the empty space of the box portion, the front and rear are open and the empty space is formed therein, and the square frame and the empty space of the square frame are coupled to cross each other in vertical and horizontal directions to support the pocket portions a dispersing unit including a plurality of dispersing bars;
A first elastic support part formed in a 'C' cross-sectional shape to elastically support the dispersion part, and connected to one end of the first elastic support part, a plurality of peaks and valleys are continuously intersected along the longitudinal direction to compress or a multi-impact absorbing part including a second elastic support part inflatable and a fixing bar connected to one end of the second elastic support part and having one end fixed to the inner wall surface of the box part;
Impact sensors installed in each of the box unit;
a locking part accommodated in a locking groove provided on the bottom surface of the base to prevent the base from flowing; and
and a withdrawal cylinder buried in the ground and withdrawing from the locking groove by lowering the locking part when the impact sensor detects an impact;
The protection part is spaced apart from the buffer part by a predetermined distance, and the base and the box part slide in a direction to which the impact force of the collision source is applied, and the buffer part elastically supports the protection part moved together with the base. IoT device management system.
According to claim 1,
a detection sensor for detecting state information of the managed IoT device;
a display unit comprising a communication unit communicating with the detection sensor to receive abnormal state information, and displaying, as image information, content related to the abnormal state as image information through a display unit when receiving an abnormal state information from the detection sensor; and
The server further includes; after receiving the sensing data of the IoT device to be managed detected from the detection sensor, and analyzing it to detect an abnormal state;
The state detection unit,
a database unit for collecting and storing sensing data obtained from a plurality of detection sensors existing in the managed IoT device;
a data analysis unit that analyzes the sensing data to analyze an abnormal state and location of a corresponding managed IoT device; and
It includes; a data prediction unit that predicts an accident situation that may occur in the IoT device to be managed according to the detection result of the data analysis unit or predicts the lifespan thereof;
The abnormal state detected by the state detection unit or the server includes information on a failure state of the IoT device to be managed, information about a situation that is likely to occur in an accident situation in the future, or information on the expected lifespan of the equipment to be managed,
When the sensing data collected from the detection sensor is vibration data, the data analysis unit analyzes the amplitude and natural vibration frequency of the collected vibration data to estimate the failure state and life expectancy of the corresponding managed facility,
When the sensing data collected from the detection sensor is current data, the data analysis unit analyzes the current consumption and the current waveform (frequency and sine wave shape information) from the collected current data when operating the facility, thereby causing the failure of the facility to be managed. Estimate the state and expected lifespan, and when the sensing data collected from the detection sensor is temperature data, the data analysis unit analyzes the trend of the temperature peak value and the accumulated temperature data of the corresponding management target facility from the collected temperature data to manage the corresponding management An IoT device management system through PDM that estimates the failure state and life expectancy of the target IoT device.
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