KR101783132B1

KR101783132B1 - measurement system using wire sensor and wireless sensor network optionally

Info

Publication number: KR101783132B1
Application number: KR1020160028902A
Authority: KR
Inventors: 정진만; 허병행
Original assignee: 한남대학교 산학협력단
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2017-09-29
Also published as: KR20170106549A

Abstract

The present invention relates to a metrology system that can selectively use a wireline sensor and a wireless sensor. More particularly, the present invention performs analytical work using a wire sensor as a basis, converts information received from a wireless sensor into an analog value as needed, and selectively performs analysis with a measuring instrument used in a conventional wire sensor Lt; / RTI > A measurement system that can selectively use a wire sensor and a wireless sensor, which is an aspect of the present invention, includes: a wire sensor that transmits measured first data to a wire; A first cable for transmitting the first data from the wired sensor; A digital to analog converter (DAC) for receiving the first data from the first cable; A second cable for transferring the first data from the DAC; A data acquisition device for receiving the first data from the second cable; And an analyzer for performing analysis using the first data acquired from the data acquiring device, wherein the DAC further comprises a wireless sensor for transmitting the measured second data through wireless communication, Wherein the DAC directly converts the second data into an analog signal when the second data is directly acquired from the wireless sensor and the second data converted into the analog signal is acquired through the second cable Can be delivered to the device.

Description

[0001] The present invention relates to a measurement system using a wire sensor and a wireless sensor,

The present invention relates to a metrology system that can selectively use a wireline sensor and a wireless sensor. More particularly, the present invention performs analytical work using a wire sensor as a basis, converts information received from a wireless sensor into an analog value as needed, and selectively performs analysis with a measuring instrument used in a conventional wire sensor Lt; / RTI >

A sensor, or component, instrument, or instrument that senses, identifies, and identifies physical quantities, such as heat, light, temperature, pressure, and sound, and notifies them with a constant signal, is called a sensor.

Sensors can be used in a wide range of applications, such as detecting motion, responding to sounds, or responding to pressing forces.

Types of sensors include temperature sensors, pressure sensors, flow sensors, magnetic sensors, optical sensors, acoustic sensors, taste sensors, and olfactory sensors.

An example of a simple sensor is a traffic card when a car enters a highway, a fire detector in a classroom, an automatic blinking light on a porch, or a streetlight that turns on when it gets dark.

A vibration sensor is a sensor that uses a mechanical structure and a method of detecting the vibration of a moving object, and a range applicable to the vibration source and frequency is determined.

The most widely used vibration sensor is a piezoelectric acceleration method and a cantilever vibration method. The former is suitable for fast vibration and the latter is suitable for slow vibration and weak vibration.

In the case of a cantilever beam, there are many ways to attach a strain gage to a free end and to bond the strain gage near the fixed end to obtain an output.

As a measurement method using a vibration sensor, two methods using a wire vibration sensor or a wireless vibration sensor are used.

Currently, most companies purchase and use wired vibration sensor measurement systems.

However, the user of the wired sensor measurement system can not measure if the vibration measurement is necessary in the part where the cable installation is impossible, and there are big and small problems in designing various other methods.

If the cable of the wire vibration sensor can not be installed, the method using the wireless measurement system can be applied. However, since the wireless vibration sensor is expensive, there is a problem of initial purchase cost.

In addition, even if a high-priced wired measurement system is available, it is incompatible with a wireless sensor and can not be used. Inevitably, when a wireless sensor is required to measure it, there is a problem that a wireless vibration measurement system must be purchased with a large cost burden.

Since the conventional two systems are incompatible with each other, there is a problem that they must be used separately from each other. Having both systems requires a large cost for users, and a solution thereof is required .

Korean Patent Application Publication No. 10-2016-0007259

The present invention relates to a measurement system that can selectively use a wire sensor and a wireless sensor, and performs analysis by using a wire sensor as a base, converts information received from the wireless sensor into an analog value, To provide a user with a system that selectively performs analysis with a measuring instrument used in the system.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

According to an aspect of the present invention, there is provided a measurement system for selectively using a wire sensor and a wireless sensor, including: a wire sensor for transmitting measured first data to a wire; A first cable for transmitting the first data from the wired sensor; A digital to analog converter (DAC) for receiving the first data from the first cable; A second cable for transferring the first data from the DAC; A data acquisition device for receiving the first data from the second cable; And an analyzer for performing analysis using the first data acquired from the data acquiring device, wherein the DAC further comprises a wireless sensor for transmitting the measured second data through wireless communication, Wherein the DAC directly converts the second data into an analog signal when the second data is directly acquired from the wireless sensor and the second data converted into the analog signal is acquired through the second cable Can be delivered to the device.

In addition, when the first data can not be measured through the wired sensor and when the first cable can not receive the first data, the DAC transmits the second data from the wireless sensor It can be acquired directly.

The wired sensor and the wireless sensor may be plural sensors, and the wired sensor and the wireless sensor may be sensors for measuring vibration.

The DAC and the wireless sensor perform short-range communication or long-distance communication, and the short-range communication may be performed using Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB) ZigBee, and Wi-Fi (Wireless Fidelity) technology, and the long distance communication includes code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA) , And single carrier frequency division multiple access (SC-FDMA) techniques.

The method further includes the steps of performing a measurement using the wire sensor according to an instruction through the user input unit or a method of performing measurement using the wireless sensor, .

According to another aspect of the present invention, there is provided a method of selectively using a wire sensor and a wireless sensor, including: a first step of generating first data measured by a wire sensor; A second step of the first cable transmitting the first data from the wire sensor to a digital to analog converter (DAC); A third step of transferring the first data from the DAC to a data acquisition device using a second cable; A fourth step of the data acquiring device transmitting the first data to the analyzing device; And a fifth step in which the analyzing device performs an analysis operation using the first data. In the third step, the DAC transmits second data measured by the wireless sensor to the DAC, And a third step of converting the second data into an analog signal between the third step and the fourth step, wherein the DAC converts the second data into an analog signal, and in the fourth step, And the second data converted into the signal may be transmitted to the data acquiring device via the second cable.

In addition, in the third step, when the measurement of the first data is impossible through the wired sensor and when the first cable is impossible to receive the first data, in the third step, The second data can be directly obtained from the second data.

Also, before the first step, a command for instructing whether to perform measurement using the wire sensor or measurement using the wireless sensor is received through a user input unit. 0.5 step.

The present invention relates to a measurement system that can selectively use a wire sensor and a wireless sensor, and performs analysis by using a wire sensor as a base, converts information received from the wireless sensor into an analog value, The user can be provided with a system for selectively performing analysis with the measurement equipment used in the system.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

1 shows an example of a measuring system using a conventional wire vibration sensor.
2 shows an example of a measurement system using a conventional wireless vibration sensor.
3 shows an example of a measurement system that can selectively use a wire sensor and a wireless sensor proposed by the present invention.
4 is a block diagram for explaining a DAC (Digital to Analog Converter) used in a measurement system proposed by the present invention.
5 shows a specific example of a DAC used in the measurement system of the present invention.

Currently, two methods are used for measurement using a vibration sensor.

The first method is a measurement using a wire vibration sensor, and the second method is a measurement using a wireless vibration sensor.

1 shows an example of a measuring system using a conventional wire vibration sensor.

Referring to FIG. 1, a conventional wired vibration measurement system 1 may include at least one wired vibration sensor 10, a sensor cable 20, a data acquisition device 30, and an analysis device 40. have.

The wire vibration sensor 10 is a sensor that detects vibration in a specific area and provides a function of transmitting sensed information through a wire.

In the present invention, it is assumed that the sensor is a vibration sensor for convenience of description, but the present invention is not limited thereto, and more various sensors can be applied.

The sensor cable 20 provides a function of transmitting information measured by the wire vibration sensor 10 to another device.

The data acquisition device 30 provides a function of receiving information measured by the wire vibration sensor 10 from the sensor cable 20 and storing or transmitting the information to an external device.

At this time, the data acquisition device 30 can receive and process the information measured by the plurality of wire vibration sensors 10.

The analysis device 40 provides a function of determining the condition of a specific area using the information measured by the wire vibration sensor 10 received from the data acquisition device 30 and providing the determined result to the user do.

As a result, the configuration of the measurement system 1 using the wire vibration sensor measures vibration data from the wire vibration sensor 10, transfers the data to the data acquisition device 30 using the signal transmission cable 20, And a system for analyzing data entered into the equipment 30 by a software device 40 dedicated to vibration analysis.

Currently, most vibration analysis systems consist of wired vibration sensors.

The advantage of the measurement system 1 using such a wire vibration sensor is that it can be measured by various kinds of sensors, and the data reliability is high by transmitting a signal through a cable.

However, the measurement system (1) using the wire vibration sensor has disadvantages such as inconvenience of connecting a cable, high maintenance cost, and time required for installation and disconnection of the sensor.

Next, the measurement system 2 using the wireless vibration sensor measures data in the wireless vibration sensor 50 without a cable between the vibration sensor 10 and the data acquisition device 30, and transmits the data signal wirelessly 60, and receives the data wirelessly from the analysis equipment 40, and analyzes the data by a vibration analysis program.

2 shows an example of a measurement system using a conventional wireless vibration sensor.

Referring to FIG. 2, the measurement system 2 using the wireless vibration sensor is composed of the wireless vibration sensor 50 and the analysis device 40.

The analytical instrument 40 of FIG. 2 is shown as including the data acquisition instrument 30 of FIG. 1, but it is also possible to include the analytical instrument 40 and the data acquisition instrument 30 separately have.

The wireless vibration sensor 50 may also transmit the acquired information to the analysis device 40 via a wireless or wired communication 60.

The local area communication may include Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and Wi-Fi (Wireless Fidelity).

Further, the long-distance communication may be performed by using a code division multiple access (CDMA), a frequency division multiple access (FDMA), a time division multiple access (TDMA), an orthogonal frequency division multiple access (OFDMA), a single carrier frequency division multiple access . &Lt; / RTI >

The measurement system (2) using a wireless vibration sensor has not been widely used yet, but it is expected to be used in various measurement fields in the future.

An advantage of the measurement system 2 using the wireless vibration sensor is that it does not require installation of a cable because data is transmitted wirelessly, and maintenance cost is lower than that of a wire sensor.

However, since the measurement system 2 using the wireless vibration sensor can not be used for a long time due to the battery charging method and the size thereof is larger than that of the conventional vibration sensor, the use range is limited and the initial system construction cost is increased.

Currently, the user of the measurement system 1 using the wire vibration sensor suffers from the inconvenience that measurement can not be performed or it is difficult to adapt to various other methods when vibration measurement is required in a portion where cable installation is impossible.

If the measurement system 1 using the wire vibration sensor can not be installed, the measurement system 2 using the wireless vibration sensor can be newly installed. However, this has a problem that the initial purchase cost is too high.

Even if there is a measurement system 1 using the expensive wire vibration sensor being held, it can not be used because it is incompatible with the wireless vibration sensor 50. Inevitably, when it is inevitable to measure it with the wireless vibration sensor 50, There is a problem that the measurement system 2 using the wireless vibration sensor must be purchased.

Thus, the conventional two systems are not compatible with each other and must be used individually. However, it is disadvantageous that both systems are expensive.

Accordingly, the present invention proposes a measurement system that can selectively use a wire sensor and a wireless sensor.

Specifically, in the present invention, a system that performs analysis by using a wire sensor as a basis, converts information received from a wireless sensor to an analog value as needed, and performs analysis selectively using an instrument used in a conventional wire sensor To the user.

A specific configuration of the present invention will be described with reference to Fig.

3 shows an example of a measurement system that can selectively use a wire sensor and a wireless sensor proposed by the present invention.

The measurement system 3 that can selectively use the wire sensor and the wireless sensor according to FIG. 3 includes a plurality of wireless vibration sensors 50, a digital to analog converter (DAC) 100, a sensor cable 20, a data acquisition device 30 And an analysis device 40. [0034]

The plurality of radio vibration sensors 50 in the measurement system 3 proposed in the present specification corresponds to the configuration described with reference to Fig. 2 and the sensor cable 20, the data acquisition equipment 30 and the analysis equipment 40 Since it corresponds to the configuration described with reference to FIG. 1, repeated description will be omitted for the sake of simplification of the description.

However, the measurement system 3 proposed in this specification has a configuration that further includes a DAC (Digital to Analog Converter) 100, unlike the measurement systems of FIGS.

Here, the DAC 100 may serve as a wired vibration sensor itself or may provide a function of receiving the measured information from the wired vibration sensor 10 described in Fig. 1 by wire.

The DAC 100 may perform wireless communication to receive and transmit information measured by the plurality of wireless vibration sensors 50 through the near field communication or the wireless communication 60. [

In addition, the DAC 100 can convert the digital signal into an analog signal and provide it to the data acquisition equipment 30.

That is, the wireless communication device 60 may receive data measured by a plurality of wireless vibration sensors 50, convert the received data into analog data, and provide the converted data to the data acquisition device 30. [

The DAC 100 is a basic format that provides the function of directly transferring the information measured by the wire vibration sensor 10 to the data acquisition equipment 30, The wireless vibration sensor 50 may receive the measured data, convert the received data to analog, and provide the converted information to the data acquisition device 30. [

That is, the measurement system 3 to which the DAC 100 proposed by the present invention is applied can be connected to the wired measurement device even if the user purchases only the wireless vibration sensor 50 without a large cost in the state of having the existing expensive wired measurement system So that the vibration can be measured.

This allows the use of both wired and wireless sensors at the same time, even if they have only one expensive vibration analysis device.

As a result, according to the system proposed in the present invention, DAC for legacy system compatibility is applied, vibration measurement analysis is possible by purchasing only a wireless sensor in the existing wired vibration measurement system, By installing a sensor, data can be acquired and analyzed using existing equipment.

Hereinafter, a DAC (100) device proposed by the present invention will be described in detail with reference to FIG.

4 is a block diagram for explaining a DAC (Digital to Analog Converter) used in a measurement system proposed by the present invention.

For convenience of explanation, the DAC device 100 is used in combination with the terminal device 100 or the terminal and is hereinafter referred to as " DAC device 100 ".

The DAC device 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply unit 190, and the like. The components shown in FIG. 4 are not essential, and a terminal device having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the terminal apparatus and the wireless communication system or between the terminal apparatus and the network in which the terminal apparatus is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 refers to a module for wireless Internet access, and may be built in or enclosed in a terminal device. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the terminal device, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 4, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the terminal device, such as the open / close state of the terminal device, the position of the terminal device, the presence or absence of user contact, the orientation of the terminal device, Thereby generating a sensing signal. For example, when the terminal device is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating an output relating to visual, auditory or tactile sense and includes a display unit 151, an acoustic output module 152, an alarm unit 153, a haptic module 154, 155, and the like.

The display unit 151 displays (outputs) information processed by the terminal apparatus. For example, when the terminal device is in the call mode, a UI (User Interface) or GUI (Graphic User Interface) associated with the call is displayed. When the terminal device is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 depending on the implementation of the terminal apparatus. For example, in the terminal device, the plurality of display portions may be spaced apart or arranged integrally on one surface, and may be disposed on different surfaces, respectively.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

The proximity sensor 141 may be disposed in an inner region of the terminal device to be wrapped by the touch screen or in the vicinity of the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

Also, the display unit 151 may provide a light output function for emitting light to the outside.

Currently, the light output function in the terminal 100 is provided as a flashlight function or the like.

Such a light output function may be provided through a structure using an LED.

However, the present invention is not limited thereto, and it is obvious that all the technical contents for emitting light to the outside can be applied.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception tones, message reception tones, etc.) performed in the terminal device. The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the terminal device. Examples of events that occur in a terminal device include receiving a call signal, receiving a message, inputting a key signal, and touch input. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the portable terminal.

The projector module 155 is a component for performing an image project function using the terminal device and may have the same or at least a part of the image displayed on the display part 151 in accordance with a control signal of the control part 180 Can display other images on an external screen or wall.

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction.

The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip.

Preferably, the projector module 155 may be provided on the side, front or back side of the terminal device in the longitudinal direction. It goes without saying that the projector module 155 may be provided at any position of the terminal device as needed.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may also store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia). In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The terminal device may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the terminal device. The interface unit 170 receives data from an external device, receives power from the external device, transfers the data to each component in the terminal device, or transmits data in the terminal device to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various kinds of information for authenticating the use right of the terminal device and includes a user identification module (UIM), a subscriber identity module (SIM), a universal user identity module Module, USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Therefore, the identification device can be connected to the terminal through the port.

The interface unit may be a path through which power from the cradle is supplied to the mobile terminal when the mobile terminal is connected to an external cradle or a channel through which various command signals input from the cradle by the user are transmitted to the mobile terminal . The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the terminal device. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

Meanwhile, FIG. 5 shows a specific example of the DAC 100 used in the measurement system of the present invention.

5, there is shown a typical DAC 100 structure including a short-range communication module 114, a power supply unit 190, a controller 180, and an interface unit 170.

Referring to FIG. 5, a Zigbee wireless communication module 114a and a vibration data receiving unit 114b are shown as a short-range communication module 114. FIG.

Here, ZigBee security can be applied to 128 bit AES encryption algorithms.

Referring to FIG. 5, an external power source DC 5V may be used as the power supply unit 190.

Also, an MCU may be used as the controller 180, and a serial 16-bit voltage output chip may be embedded in the MCU.

The interface unit 170 may include an analog converter 170a and a BNC connector 170b.

The analog converter 170a provides a digital to analog output function and the BNC connector 170b connects the data acquisition equipment 30 and the DAC 100 to transfer the analog converted information to the data acquisition equipment 30 .

Conventional wire vibration sensors have difficulties in measuring vibrations due to problems such as cable length and cable operation.

As an alternative, wireless vibration sensors are being developed one by one, but if a new vibration vibration analyzer is purchased and used again in the state where existing expensive equipments are equipped, the cost is burdened to the enterprise.

According to the configuration of the present invention described above, existing equipment is used as it is, and only the wireless sensor part is purchased, thereby solving installation problems and performing vibration analysis using existing equipment.

That is, the present invention relates to a measurement system that can selectively use a wire sensor and a wireless sensor, and performs analysis by using a wire sensor as a basis, converts information received from the wireless sensor into an analog value, A system for selectively performing analysis with a measuring instrument used in a wire sensor can be provided to a user.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

The present invention relates to a method and system for preventing fall of an unmanned aerial vehicle through a configuration and a method of the present invention, can do.

The above-described embodiments of the present invention can be implemented by various means. For example, embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof. In the case of hardware implementation, the method according to embodiments of the present invention may be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs) , FPGAs (Field Programmable Gate Arrays), processors, controllers, microcontrollers, microprocessors, and the like.

In the case of an implementation by firmware or software, the method according to embodiments of the present invention may be implemented in the form of a module, a procedure or a function for performing the functions or operations described above. The software code can be stored in a memory unit and driven by the processor. The memory unit may be located inside or outside the processor, and may exchange data with the processor by various well-known means.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The foregoing description of the preferred embodiments of the invention disclosed herein has been presented to enable any person skilled in the art to make and use the present invention. While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. For example, those skilled in the art can utilize each of the configurations described in the above-described embodiments in a manner of mutually combining them. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that do not have an explicit citation in the claims may be combined to form an embodiment or be included in a new claim by amendment after the filing.

Claims

A wire sensor for transmitting the measured first data to a wire;
A first cable for transmitting the first data from the wired sensor;
A digital to analog converter (DAC) for receiving the first data from the first cable;
A second cable for transferring the first data from the DAC;
A data acquisition device for receiving the first data from the second cable; And
And an analysis device that performs analysis using first data acquired from the data acquisition device,
And a wireless sensor for transmitting the measured second data through wireless communication,
When the DAC acquires the second data directly from the wireless sensor,
The DAC converts the second data into an analog signal,
The second data converted into the analog signal is transmitted to the data acquiring device via the second cable,
When the first data is not available for measurement via the wired sensor and when the first cable is unable to receive the first data, the DAC directs the second data from the wireless sensor to direct And,
The wired sensor and the wireless sensor are plural,
The wired sensor and the wireless sensor are sensors for measuring vibration,
Wherein the DAC and the wireless sensor perform near or far communication,
The near-field communication includes Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and Wi-Fi (Wireless Fidelity)
The long-distance communication may be performed by using code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), or single carrier frequency division multiple access Including,
And a user input unit for receiving a user command,
A method of performing measurement using the wired sensor or a method of performing measurement using the wireless sensor is performed according to an instruction through the user input unit. .

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A first step of generating first data measured by a wire sensor;
A second step of the first cable transmitting the first data from the wire sensor to a digital to analog converter (DAC);
A third step of transferring the first data from the DAC to a data acquisition device using a second cable;
A fourth step of the data acquiring device transmitting the first data to the analyzing device; And
And a fifth step of the analytical instrument performing an analysis work using the first data,
In the third step,
When the DAC directly acquires the second data measured by the wireless sensor from the wireless sensor,
Between the third step and the fourth step,
And a third step of the DAC converting the second data into an analog signal,
In the fourth step, the second data converted into the analog signal is transmitted to the data acquiring device via the second cable,
When the first data is impossible to be measured through the wire sensor and when the first cable is not capable of receiving the first data, Directly acquires the second data,
The wired sensor and the wireless sensor are plural,
The wired sensor and the wireless sensor are sensors for measuring vibration,
Wherein the DAC and the wireless sensor perform near or far communication,
The near-field communication includes Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and Wi-Fi (Wireless Fidelity)
The long-distance communication may be performed using a code division multiple access (CDMA), a frequency division multiple access (FDMA), a time division multiple access (TDMA), an orthogonal frequency division multiple access (OFDMA), a single carrier frequency division multiple access &Lt; / RTI &
Prior to the first step,
And a fifth step of receiving, through a user input unit, a command for instructing whether to perform the measurement using the wire sensor or the measurement using the wireless sensor A wireless sensor and a wire sensor.

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