KR20120077332A - Method and system for measuring and managing state change and history of object - Google Patents

Abstract

PURPOSE: A method and a system for measuring/managing the status and history of an object are provided to sense the temperature, vibration, and gas of a machine or facility and transmit the sensing data through a smart phone, thereby facilitating inspection of the facility and check up of the inspection results. CONSTITUTION: A recognition unit(110) comprises an RFID reader that communicates with an RFID tag attached to an object, recognizes the object. A sensing unit(120) senses the active parameter of the object. A communication unit(130) outputs the recognition and sensing results through short-distance wireless communication. A smart phone collects/stores the information transmitted from the communication unit, outputs the status/history data of the object on a screen, and transmits the status/history data of the object to a control center through mobile communication network or internet.

Description

METHOD AND SYSTEM FOR MEASURING AND MANAGING STATE CHANGE AND HISTORY OF OBJECT}

The present invention can be integrated and managed in real time to check the status and history of the temperature, vibration, gas, etc. of the unit machine or equipment in an environment that requires linkage and integration between unit machines or equipment, unit processes, processes, such as steel mills A method and system for measuring and managing the status and history of an object under test.

The steel mill is a place where steel materials such as steel sheets and steel pipes are produced from iron ore or scrap metal through steelmaking, steelmaking, rolling and rolling processes. Steelmaking refers to the process of extracting liquid wastewater by putting iron ore and bituminous coal, which are raw materials, into the blast furnace. Steelmaking refers to removing various impurities from the wastewater. Rolling refers to the process of extracting, and rolling refers to the process of producing steel of the desired size or shape by applying high pressure to the intermediate material.

The unit machines or equipment in each of these processes must be kept at a constant temperature to increase production efficiency and product quality. Therefore, it is important to measure the temperature of each process, or unit machines or facilities of each process in the steel mill, and to manage them in real time.

In addition, the steel mill has a structure in which the entire process should stop when a specific process or a specific unit machine stops working due to the characteristics of the iron process. Therefore, it is necessary to maintain production efficiency and product quality, and to ensure worker safety by measuring work environment elements such as vibration and gas generated in machines and facilities of each process.

However, at the current workplaces, such as steel mills that produce steel products, it is necessary to measure the temperature of each unit or facility in each process and input or transmit the measured information separately to the operator terminal or the control center terminal. There is a problem that the work takes a relatively long time and the inspection work is inefficient. In addition, in such a conventional method, it is difficult to check the status and history of temperature, vibration, gas, etc. of unit machines or equipment in real time and manage them in an integrated manner in an environment requiring linkage and integration between unit processes. there is a problem.

An object of the present invention is to check the status and history of the temperature, vibration, gas, etc. of the unit machine or equipment in real time and integrated management in an environment that requires linkage and integration between unit machines, facilities, unit processes, and processes, such as steel mills. It is to provide a method for measuring and managing the status and history of the object under test.

It is also an object of the present invention to provide a system for measuring and managing the status and history of an object under test as a system using the method described above.

In order to solve the above technical problem, the method for measuring and managing the status and history of the object to be measured according to an aspect of the present invention includes a method for measuring and managing the status and history of the object to be measured in a system including a measuring device and a smartphone. A first step of recognizing an object to be measured; Sensing a vitality parameter of the subject under test; A third step of outputting recognition information and detection information of the object to be measured in a short range wireless communication method; And a fourth step of receiving the recognition information and the detection information and transmitting the received information to the control center through the Internet or a mobile communication network.

In one embodiment, the first step includes receiving pre-stored information from an RFID tag attached to the object under test.

In one embodiment, the first step includes reading information stored in an identification code attached to the object under test. The identification code includes a one-dimensional barcode, a two-dimensional barcode, a Quick Response (QR) code or a two-dimensional code, a color code, or a combination thereof.

In one embodiment, the first step includes irradiating light toward the identification code, adjusting the photographing angle of the camera in the irradiation direction of the light, and zooming in the identification code with the camera to photograph.

In one embodiment, the first step further comprises installing light emitting means on or adjacent the identification code.

In one embodiment, the second step includes sensing the temperature, vibration, or gas of the object to be measured by a thermometer, a vibrometer, or a gas meter installed in the measuring device.

In one embodiment, the method further comprises collecting and storing the recognition information and the sensing information by the smartphone, and outputting the status and history information of the at least one object to be measured on the display screen of the smartphone.

According to another aspect of the present invention, a system for measuring and managing a state and history of an object to be measured includes: a recognizer configured to recognize an object to be measured; A detector configured to detect an activity parameter of the object to be measured; A communication unit configured to output recognition information and detection information of the object to be measured in a short range wireless communication method; And collecting and storing the information transmitted from the communication unit, outputting the status and history information of the at least one measured object on the display screen, and transmitting the status and history information of the measured object to the control center through a mobile communication network or the Internet. It includes.

In one embodiment, the recognition unit includes an RFID reader that exchanges data with an RFID tag attached to the object to be measured.

In one embodiment, the recognition unit includes a camera photographing the identification code attached to the object to be measured, and an identification information reading unit reading the identification information from the image photographed by the camera.

In one embodiment, the identification code comprises a one-dimensional barcode, a two-dimensional barcode, a Quick Response (QR) code or a two-dimensional code, a color code, or a combination thereof.

In one embodiment, the system for measuring and managing the status and history of the object under test further includes a light irradiation part for irradiating light having a wavelength shorter than microwave or microwave toward the identification code. Here, the camera zooms in and photographs the identification code based on the identification code or light emitting means provided adjacent to the identification code in response to the light of the light irradiation unit.

In one embodiment, the sensing unit includes an infrared thermometer for sensing the temperature of the object under test.

In one embodiment, the system is equipped with a recognition unit, a detection unit, and a communication unit, and includes a measuring device independent of the smartphone.

According to the present invention, the status and history of the temperature, vibration, gas, etc. of the unit machine or equipment in real-time environment, such as steel mills that produce steel products, such as the unit machine, equipment, unit processes, processes are required Can be checked and integrated management.

In addition, by using a measuring device that recognizes a unit machine or facility, detects the temperature, vibration, gas, etc. of the machine or facility, and transmits the recognition information and the detection information to the smartphone in a short-range wireless communication method, the facility is easily checked and checked. This makes it easy to check, which allows for quick and accurate maintenance and maintenance.

In addition, by using a smart phone such as an iPhone or a Galaxy connected to the measurement device through short-range wireless communication, a predetermined application may be mounted on the smart phone to accumulate facility checks or to compare and check a plurality of checks easily. Maintenance and maintenance can be performed quickly and accurately.

In addition, since the inspection information can be transmitted from the smart phone to the control device in real time through the Internet or a mobile communication network, the control device provides information on the work environment such as temperature, vibration, gas, etc. of each process or unit machines or facilities of each process in real time. Can be collected and controlled, thereby increasing the stability and reliability of each process or unit.

In addition, when a problem occurs in a specific unit machine or facility, the operator can apply for maintenance to the control center directly from the site through a smartphone, so that maintenance of the unit machine or facility of each process can be performed quickly, accurately and efficiently.

1 is a schematic configuration diagram of a system for measuring and managing a state and history of an object to be measured according to an embodiment of the present invention (hereinafter, referred to as a “measurement management system”).
2 is a view for explaining an embodiment of an application of the smartphone employed in the measurement management system of FIG.
3 is a schematic flowchart of a method (hereinafter, referred to as a 'measurement management method') of measuring and managing a state and history of an object to be measured according to an embodiment of the present invention.
4 is a schematic block diagram of an embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.
5 is a schematic block diagram of yet another embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.
6 is a schematic block diagram of yet another embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.
7 is a view for explaining the principle of operation of the measuring device of FIG.
8 is a schematic block diagram of yet another embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.
9 is a view for explaining an embodiment of a tag of the RFID system employed in the measuring apparatus of FIG.
FIG. 10 is a view for explaining an embodiment of a vibrometer of a measurement apparatus employable in the measurement management method and system of the present invention. FIG.
11 is a view for explaining the principle of operation of the measurement management method and system of the present invention.
12A to 12E are diagrams for explaining a transmission / reception data structure employable in the measurement management method and system of the present invention.

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

1 is a schematic configuration diagram of a system for measuring and managing a state and history of an object to be measured according to an embodiment of the present invention (hereinafter, referred to as a “measurement management system”).

Referring to FIG. 1, the measurement management system includes a measurement device 100, a smartphone 200, and a control center 300.

The measuring device 100 recognizes the measured object 10, measures the activity parameters of the measured object 10, and transmits the recognized information and the measured information to the smartphone 200 in a short range wireless communication method. do. For example, the measurement apparatus 100 may measure the measured object 10 by an RFID (Radio Frequency IDentification) tag 102 attached to the measured object 10, an identification code (not shown; refer to 102 of FIG. 7), or the like. It identifies the activity parameter of the object 10 through the sensor mounted in the device.

Here, the object to be measured 10 may be each process of a steel mill, a unit machine, or a facility of each process. For example, the object to be measured 10 includes a machine or facility such as a gearbox, a motor, a belt scale, a bucket wheel, or the like of a steel mill.

The active parameter includes at least one of temperature, vibration, displacement, amount of light, magnetic field, current, voltage, and resistance of the object 10. In addition, the activity parameter may include a gas generated in the object 10 or a gas atmosphere around the object 10.

The short range wireless communication method refers to wireless communication between devices using short range wireless communication technologies such as Bluetooth, Wireless Local Area Network (WLAN), HomeRF, Infrared Data Association (UrDA), and Ultra Wide Band (UWB). .

The measuring device 100 described above is basically a separate device independent of the smartphone 200. However, in the variation of the present embodiment, the measurement device 100 may have a single device form that is integrally coupled with the smartphone 200. For example, in a simple way, by inserting the metrology device 100 into the first groove of a predetermined single functional pad (not shown) and the smartphone 200 into the second groove, the metrology device 100 is a single unit. It may be used in combination with the smartphone 200 in the form of a tablet computer.

The smartphone 200 is a portable terminal having advanced capabilities compared to a general mobile phone, such as the performance of a personal computer (PC), and generally refers to a built-in high-performance range operating system (OS). In the measurement management system and method of the present embodiment, the function of the smart phone is used to collect and store the information of the measuring device in the field, and to check the state and history of the measured object 10 based on the stored information, and the corresponding information. It is configured to be transmitted to the control center 300 in real time and conveniently through the Internet or a mobile communication network.

In addition, in the present embodiment, the component of the smart phone 200 is Apple's iPhone, Samsung's Galaxy Phone, LG's Optimus Phone, Motorola's Motorola Phone, HTC's Design Phone, and SKY's Vega. (VEGA) It can be implemented using a phone, so the existing name is used as it is. For example, the smartphone 200 of the present embodiment can be implemented by installing a predetermined application on an existing smartphone. Here, the application includes a maintenance history management program (see FIG. 2).

The control center 300 is provided with a control device interworking with the smart phone 200 through the Internet or the mobile communication network 20, it may be simply referred to as a control device. For example, the control center 300 may include a control center of an ironworks that produces steel products. In addition, the control center 300 may be provided with a means or a device that shows the operation state of each process or unit machine or equipment of each process, such as a situation board.

In the present embodiment, the control center 300 operates to stably and efficiently manage each process and the entire process based on the activity parameters of the measured object 10 received from the smartphone 200. In addition, upon reception of a maintenance request signal from the smartphone 200, the control center 300 performs maintenance of damage recovery, driving recovery, replacement recovery, etc. on the measured object 10 according to a predetermined processing policy. can do.

2 is a view for explaining an embodiment of an application of the smartphone employed in the measurement management system of FIG.

The smartphone employed in the measurement management system of this embodiment is implemented by mounting a predetermined application. The application has an interface or screen 210 as shown, for example, in FIG. The screen 210 may display, for example, a worker's name 212 such as Hong Gil-dong, current inspection work status information 214, information 216 about the inspected object to be inspected, and the like.

The inspection task status information 214 may include the number of objects under normal condition, the number of objects under warning state, the number of objects under critical state, the total number of inspection tasks, and the completed inspection. The number of tasks, the number of incomplete inspection tasks, and the like.

In addition, the information 216 about the inspected object may include a name of a unit machine or a facility of each process, a state of each unit machine or a facility, and a frequency of inspection of each unit machine or a facility.

3 is a schematic flowchart of a method (hereinafter, referred to as a 'measurement management method') of measuring and managing a state and history of an object to be measured according to an embodiment of the present invention.

Referring to Figure 3, the measurement management method first recognizes the object to be measured in the measuring device (S310). Recognition of the measurement object may recognize the measurement object by automatically recognizing the RFID tag attached to the measurement object by the RFID reader or by photographing the identification code attached to the measurement object with a camera and interpreting the corresponding image in the recognition program. .

Next, the measuring device detects the state of the object to be measured (S320). The state sensing of the object under measurement measures the activity parameter of the object under measurement, and includes measuring temperature, vibration, gas amount, etc. by a non-contact sensor or the like.

Next, the measuring device transmits the recognition information and the detection information on the measured object to the smart phone through the short-range wireless communication (S330). In the present embodiment, the transmission of the recognition information and the detection information is basically data transmission between the measurement device carried by the operator and the smartphone, and includes synchronization and data transmission and reception by wireless communication such as Bluetooth.

Next, the smart phone transmits the state change and / or history of the measured object to the control center through the Internet or a mobile communication network (S340). The transmission of the status and history information of the object under test is the transmission of data between the smartphone and the control center. And / or sending maintenance request messages and the like.

4 is a schematic block diagram of an embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.

Referring to FIG. 4, the measuring device 100 according to the present embodiment includes a recognition unit 110, a detection unit 120, a communication unit 130, a control unit 140, and a storage unit 150.

The recognition unit 110 is a part for identifying the object to be measured. The recognition unit 110 may be implemented as a function of recognizing the object to be measured based on an RFID tag or an identification code attached to the object to be measured or a means or a component including such a function.

The detector 120 is a part for measuring the activity parameter of the object to be measured. The detector 120 is implemented as at least one sensor capable of measuring the temperature, vibration, displacement, gas, light quantity, magnetic field, current, voltage, resistance, etc. of the object to be measured or a component including the sensor.

The communication unit 130 is a part for communicating with the smartphone. The communicator 130 is implemented as a short range wireless communication function such as Bluetooth or a component including such a short range wireless communication function.

The control unit 140 is a part for controlling the overall configuration and operation of the measuring device 100. The controller 140 controls or supports operations of the recognizer 110, the detector 120, and the communicator 130, reads out information required from the storage 150, or is recognized or detected by the storage 150. Save the information. The controller 140 may be implemented as a logic circuit or a microprocessor using a flip flop or the like.

The storage unit 150 stores a program necessary for the measuring device 100 or information recognized and detected by the measuring device 100. The storage unit 150 is implemented with a RAM (RAM), a flash memory, a magnetic disk, or a combination thereof.

5 is a schematic block diagram of yet another embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.

Referring to FIG. 5, the measuring device 100a according to the present embodiment includes a camera 112, an identification information reading unit 114, an infrared ray (IR) thermometer 120a, a communication unit 130, a controller 140a, And a storage unit 150.

The camera 112 is an optical device for taking a picture or an image, and is installed at one side of the measuring device 100a. The camera 112 photographs the identification code attached to the object to be measured.

The identification information reading unit 114 reads the information stored in the identification code based on the previously stored reference information from the identification code obtained by the camera 112. The identification information reading unit 114 is implemented as a function or program for reading an identification code or a component including such a function or program.

The IR thermometer 120a is a non-contact thermometer that measures the infrared energy emitted from the object to detect the temperature of the object. The IR thermometer 120a may be one having a thermoelectric type or a quantum type detector.

The controller 140a may include an identification information reader 114. In the present embodiment, the control unit 140a is substantially the same as the control unit 140 of FIG. 4 except that it may include the identification information reading unit 114 and supports or controls the operation of the camera 112.

In the present embodiment, since the communication unit 130 and the storage unit 150 are substantially the same as the communication unit and the storage unit of FIG. 4, detailed descriptions thereof will be omitted in order to avoid duplication of description.

6 is a schematic block diagram of yet another embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.

Referring to FIG. 6, the measuring device 100b according to the present embodiment includes a camera 112, an identification information reading unit 114, a light irradiation unit 116, a driving unit 118, a sensing unit 120, a communication unit 130, The control unit 140b and the storage unit 150 are provided.

The light irradiator 116 may include an identification code 103 attached to the object 10 to be measured, a light emitting means 104 provided adjacent to the identification code 103, or a support 106 supporting the identification code 103. It is a part for aligning the photographing direction of the camera 112 by irradiating light toward it. The light irradiator 116 includes a lot of ultraviolet rays or ultraviolet rays toward the identification code 103 so that the identification code 103, the light emitting means 104, or the support 106 can be more clearly distinguished on the object to be measured 10. Means for irradiating light or a component comprising such means. For example, the light irradiation unit 116 may be implemented using a semiconductor laser.

Here, the light emitting means 104 may include a cover function of the identification code 103, and include a fluorescent material, a material coated with a fluorescent material, or a portion of the measurement target 10 coated with the fluorescent material. Can be. The support unit 106 may be implemented by an adhesive, a support frame, or the like to securely support the identification code 103 on the object to be measured 10, and at least a portion thereof may be coated with a fluorescent material.

The driver 118 is a function for adjusting the photographing angle of the camera 120 or a component including such a function. For example, the driving unit 118 may include at least two motors, and may be implemented as a means for adjusting the photographing angle of the camera 120 according to a control signal of the controller 140b or a component including such means.

The controller 140b is substantially the same as the controller of FIG. 5 except for supporting or controlling the light emitter 116 and the driver 118.

In the present embodiment, the camera 112, the identification information reader 114, the detector 120, the communicator 130, and the storage 150 are substantially the same as the corresponding components of FIGS. 4 and 5 described above. Since they are the same, detailed descriptions thereof will be omitted in order to avoid duplication of description.

7 is a view for explaining the principle of operation of the measuring device of FIG.

6 and 7, when the light irradiating unit 116 of the measuring device 100b irradiates light toward the object 10 to be measured, the light emitting means 104 attached to the object to be measured 10 emits light. Emits and has an identifiable boundary with its surroundings.

When the light emitting means 104 is captured by the lens 108 of the camera 112 of the measuring device 100b, the controller 140b controls the driving unit 118 based on the captured image of the camera 112, thereby controlling the camera 112. Zoom in) and adjust the lens of the camera 112 to zoom in and grab the identification code 103 of the object to be measured 10.

The identification information photographed in close-up is decoded by the identification information reading unit 114 of the measuring apparatus 100b as shown in FIG. 7B, whereby the measuring apparatus 100b receives the measured object 10. You can recognize what this is.

8 is a schematic block diagram of yet another embodiment of a measurement apparatus employable in the measurement management method and system of the present invention.

Referring to FIG. 8, the measuring device 100c according to the present embodiment includes an RFID reader 110a, a thermometer 120a, a vibrometer 122, a gas meter 124, a Bluetooth 130a, a controller 140c, and a storage unit. 150.

The RFID reader 110a performs data communication with the RFID tag attached to the object to be measured at a speed of about 11 kbps and reads tag information from the RFID tag. The RFID reader 110a includes a portable RFID reader operating in an ultra high frequency (UHF) band, such as about 900 MHz or a microwave band, and may be configured to recognize up to 68 tags per second. For example, the RFID reader 110a may include a circulator connected between an RF transmitter module and an RF receiver module, a transmitter module and a receiver module, and an antenna, and a transmitter module and a circulator, respectively. The connection device may include a power amplifier or the like.

In addition, the RFID reader 110a may be implemented as a mobile RFID function interworking with a smartphone or a component including such a function. In this case, the recognition information of the object to be measured may be transmitted to the smartphone or the control center in real time through the measuring device 100c.

The vibrometer 122 may be a sensor of a method of converting the physical vibration of the object to an electrical signal or measuring a natural frequency of the object to be measured, or a radar Doppler vibration system using the Doppler effect. In addition, the vibrometer 122 may use a sensor for measuring the vibration or displacement of the object to be measured by measuring the reference point and the displacement of the object to be measured with respect to the reference point.

The gas meter 124 is a part which measures the gas which arises from the to-be-measured object, and / or the gas which exists in the atmospheric environment of the place where the to-be-measured object is installed. The gas meter 124 may be implemented as a function unit for converting and measuring concentrations of oxygen, toxic gas, and explosive gas into an electrical signal or a component having such a function. When the gas meter 124 is mounted, the measuring device 100b may be manufactured to have an inlet openable on one side thereof.

The control unit 140c is substantially the same as the control unit of the other embodiments described above except for supporting or controlling a plurality of sensors such as the thermometer 120a, the vibrometer 122, the gas meter 124, and the like.

In the present embodiment, the thermometer 120a includes an IR thermometer, and the storage unit 150 is substantially the same as the storage unit of FIG. 4 described above, and thus detailed description thereof will be omitted to avoid duplication of explanation. .

9 is a view for explaining an embodiment of a tag of the RFID system employed in the measuring apparatus of FIG.

Referring to FIG. 9, the RFID tag 102a stores identification information about the object to be measured. Here, the object to be measured may include a unit machine or a facility of a steel mill.

The RFID tag 102a of the present embodiment may be manufactured in the form of a name tag in which the unique number or name of the object to be measured is written. In addition, the RFID tag 102a of the present embodiment is described in at least one of the applicant's four domestic patents Nos. 10-0567840, 10-0567842, 10-0717629, and 10-0719973. It may be implemented as a radio frequency identification tag or RFID tag.

FIG. 10 is a view for explaining an embodiment of a vibrometer of a measurement apparatus employable in the measurement management method and system of the present invention. FIG.

In the present embodiment, it is assumed that the vibrometer (see 122 of FIG. 8) is additionally mounted on the measuring apparatus 100b of FIG. 6.

6 and 10, the vibrometer includes a reference unit 108 disposed between the measurement object 10 and the measurement device 100b, a camera 112 mounted on the measurement device 100b, and a measurement device ( And a displacement extracting part (not shown) mounted on 100b).

As shown in FIG. 10A, the reference unit 108 is disposed to be spaced apart from the measured object 10 by a predetermined interval, and includes a mechanism that is fixedly installed regardless of the vibration of the measured object 10. For example, the reference unit 108 may be implemented as a pole-shaped device installed so that the ring-shaped head is positioned in front of the identification code 103 attached to the object 10 to be measured.

The camera 112 photographs a predetermined portion of the object to be measured 10, for example, a portion of the identification code 103 so that the reference portion 108 overlaps. The camera 112 may include a displacement display unit 1124 as shown in FIG. 10B.

As shown in FIG. 10C, the measuring apparatus 100b includes the first image photographed by the camera 112 when the circle located at the center of the displacement display unit 1124 and the head of the reference unit 108 substantially coincide with each other. The vibration or displacement of the object 10 to be measured may be measured based on the image and the displacement display unit 1134. The first image may be stored in advance in the measurement apparatus 100b or the smartphone.

In addition, the measurement apparatus 100b may refer to at least a portion of the measurement object 10 or a portion of the identification code 103 attached to the measurement object 10 as shown in FIG. 10D. Vibration or displacement of the measured object 10 may be measured based on the second image photographed by overlapping with.

The vibration or displacement of the measurement object 10 described above is compared and calculated by the displacement extracting unit. The displacement extracting unit may be implemented as some functions performed on the controller 140b or components that perform these functions. The vibration or displacement information 1126 of the measured object 10 obtained from the image of the camera 112 is a predetermined format on the screen of the camera 112 or the screen of the display device of the smartphone displaying the image of the camera 112. Can be output as shown in FIG. 10 (d).

11 is a view for explaining the operation of the measurement management method and system of the present invention.

In the present embodiment, it is assumed that the measurement apparatus has a red, orange, and blue light emitting diode (LED) and a display screen on which various icons for respective functions of the device are displayed.

Referring to FIG. 11, when the power of the measuring device is turned on (S910) by the user (S910), the red LED is turned on to indicate the power on state. Various function icons are displayed on the display screen of the measuring device. The function icons may include, for example, a battery icon indicating a battery status, an RFID icon, a communication icon, a Bluetooth icon, a temperature sensor icon, a laser icon, and other function icons. The other function icon may include a logo icon of a company or a flash icon indicating whether a function added to a measurement device such as a flash function is operated. When the power is turned on, the measurement device may perform a self test for each function in its own control unit by a program stored in its own storage unit.

Next, the measuring device searches for a Bluetooth device of the smartphone through short range wireless communication, for example, Bluetooth (S915). If the Bluetooth device does not search for a specific smartphone for a predetermined time, for example, about 20 seconds when the smartphone is searched, the measuring device switches to the standby mode screen.

Next, when the smart phone is searched, the measuring device is connected with the smart phone (S920). Here, the measuring device may display the unique number of the smartphone on the screen. In addition, the measurement device and the smartphone may be automatically connected by setting the master connection mode.

Next, the measuring device recognizes the object to be measured (S925). Here, the measurement apparatus may identify the object to be measured through the RFID system or photograph an identification code attached to the object to be measured with a camera, and identify the object to be measured based on the captured image. For example, when the RFID reader of the measuring device reads the information of the RFID tag attached to the object to be measured, the screen of the measuring device displays an operation state such as TAG reading, RFID tag identification information, or RFID operation disabled during RFID operation. A message may be displayed.

Next, the measuring device measures or detects the activity parameter of the object to be measured (S930). Here, the vitality parameters include temperature, vibration, gas, or a combination thereof. The measuring device measures or detects specific activity parameters of the object under test by at least one sensor such as a thermometer, a vibrometer, a gas meter, or the like. When the sensor is in operation, an operation state message such as a temperature of 752.5 ° C. may be displayed on the screen of the measuring device.

Next, the measuring device transmits the recognition information and the detection information on the measured object to the smart phone through the short-range wireless communication (S935). The recognition information may include, for example, information on a gearbox, a motor, a belt scale, and a bucket wheel of a steel mill as identification information of the object to be measured. The sensing information may include temperature, vibration, or gas information of the identified object or the surroundings thereof.

Next, the smartphone outputs the state and history information of the measurement object to the display screen or the speaker (S940). Here, the smart phone displays the recognition information and the sensing information of the at least one measured object received from the measuring device on the screen or the time-sensitive sensing information of the one measured object in the form of history information on the measured object. Can be displayed on the screen. In addition, the display information of the smart phone may include the condition of the object to be classified into normal, warning, critical.

Next, the smartphone transmits the inspection information and / or maintenance request information to the control center (S945). Here, the inspection information may include recognition information and detection information of the measurement object received from the measurement device. In addition, the inspection opinion of the operator may be added to the inspection information in addition to the status and history information of the measured object accumulated in the smartphone. In addition, the operator may transmit a maintenance request message for the measurement object to the control center according to the inspection result of the specific measurement object.

Next, the control center manages and controls each process, unit machines or facilities of each process, and the entire process (S950). Here, the various information transmitted from the operator's smartphone is integrated and stored by the host apparatus or system of the control center. Various information received at the control center may be displayed at a glance on the status board of the control center.

12A to 12E are diagrams for explaining a data structure employable in the measurement management method and system of the present invention.

The data format of the present embodiment is for explaining a communication protocol between a measurement device and a smartphone that are connected to each other by a near field communication method. In the conventional case, the measurement of the activity parameters of the object to be measured by a separate measuring equipment and the measured information are stored in the measuring equipment, the measuring equipment is taken to the office of the control center and connected to the computer terminal, It is configured to transmit the inspection information of the measured object stored in the measuring equipment to the control equipment. However, in the present embodiment, it is configured to transmit data through short-range wireless communication between the measuring device and the smart phone, which not only greatly improves work efficiency but also performs maintenance and operation management of the entire process in real time as compared with the conventional case. There is an advantage to that.

In the present embodiment, a communication protocol for operating a terminal of the measuring device via Bluetooth in a predetermined smartphone will be described as an example.

Referring to FIG. 12A, the communication packet 500 for transmission and reception according to the present embodiment includes six parts, and functions of the parts are as follows.

STX: As a packet start code, it may be indicated, for example, by 0x05.

Length: Length of data to be sent and indicates the number of bytes from Command to Checksum.

Command: Command for operating the measuring device's terminal, where R indicates reading TAG data from an RFID tag, T indicates reading temperature from a temperature sensor, C indicates specifying date and time, and P indicates terminal It can be used to represent the operation test (Poling), respectively.

Data: indicates the data to be provided according to the type of command.

Checksum: This is an error checking part, and may be configured to convert the lowest 1 byte into the hexadecimal ASCII ascii by sending the sum from Length to the end of Data.

ETX: As the packet end code, for example, Ox06 may be used.

Hereinafter, an embodiment of a transmission / reception packet for identifying an RFID system, a temperature sensor, terminal time synchronization, and terminal operation according to the above-described data packet structure will be described.

First, transmission and reception data packets for reading TAG data from an RFID tag are as shown in FIG. 12B. Since data is not needed in the transmission data packet 510, the Data part is empty, and the Length becomes 0x03 with 1 byte of Command and 2 bytes of Checksum. The checksum converts 0xB5, which is the length 0x03 0x33 and the command 0x52, into an ASCII code, and becomes 0x42 ("B") and 0x35 ("5").

In the response data packet 512 including the tag data, the TAG data is stored as a hexadecimal ASCII code, and the length varies according to the length of the TAG data. The response time for reading the TAG can be set up to 20 seconds.

In addition, in the response data packet 514 including an error message, the data portion may include a 1 byte error code. The error code may be defined as follows.

0x31: RFID Receiver not respond

0x32: Command packet error

0x33: Checksum error of TAG data

0x34: TAG Data not read within 20 seconds

Next, a transmission / reception data packet for reading a temperature from the temperature sensor is as shown in FIG. 12C. The transmit data packet 520 is substantially the same as the transmit data packet 510 of FIG. 12B except that 0x54 Command is used to read the temperature instead of 0x52 Command to read the TAG data.

In the response data packet 522 including the temperature data, if the data is normal, the upper 4 bytes in the configuration of the data are hexadecimal integers representing the target temperature in ASCII, and the lower 4 bytes are the same. It can be set to be the ambient air temperature expressed by the method. In the temperature display, when the precision is 0.1 degrees, dividing the received Integer by 10 gives the current temperature. For example, 0x00B4 is 180, divided by 10 gives 18.0, and 18.0 is the current temperature.

In the response data packet 524 including an error message, the data portion may include a 1 byte error code. The error code may be defined as follows.

0x31: Temp Sensor not respond

0x32: Command packet error

0x33: Received temperature data error

0x34: Unable to read temperature data within 20 seconds

Next, a transmission / reception data packet structure for time synchronization with the terminal of the measuring device is as shown in FIG. 12D. The transmission data packet 530 may include Date in YYYYMMDD format or Time information in HHMMSS format in the Data portion. Here, YYYY is a hexadecimal number, for example, in 2010, 0x30 0x37 0x44 0x41 in which 0x07DA is converted into an ASCII code, and MM is hexadecimal, for example, in April, 0x30 0x34 in which 0x04 is converted to an ASCII code. DD is a hexadecimal number, for example, in the case of 26 days, 0x31 0x41 obtained by converting 0x1A into an ASCII code. HH, MM, and SS are hexadecimal digits for hours, minutes, and seconds, respectively.

The response message packet 532 at the normal processing may be configured to process the case where the response time is within 1 second as a normal response.

The response message packet 534 including the error message may include a 1 byte error code in the data portion. The error code may be defined as follows.

0x32: Command packet error

0x33: Invalid Date

0x34: Invalid time

Next, a transmission / reception data packet structure for confirming the terminal operation of the measurement device is as shown in FIG. 12E. In the transmission data packet 540, since no data is required, the Data portion is empty. The response data packet 542 does not operate and corresponds to a case in which there is no response.

In addition, when the smartphone receives an unclear packet but the STX is correct, the smartphone may respond with a data packet 544 as shown in FIG. 12E (c) to inform the measurement apparatus of an error. In the response data packet 544, since the command and data are not required, the command and data portions of the packet are empty.

In the above, the present invention has been described with reference to preferred embodiments, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains have various modifications and variations from this description. It will be possible. Therefore, the present invention should be construed with reference to the overall description of the appended claims and drawings, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

100: measuring device
200: smartphone
300: control center

Claims (15)

In the method for measuring and managing the status and history of the object to be measured in a system including a measuring device and a smartphone,
A first step of recognizing the object to be measured;
Sensing a vitality parameter of the subject under test;
A third step of outputting the recognition information and the detection information of the object to be measured in a short range wireless communication method; And
And a fourth step of receiving the recognition information and the detection information and transmitting the received information to the control device through the Internet or a mobile communication network.
The method of claim 1,
And the first step includes receiving pre-stored information from an RFID tag attached to the object to be measured.
The method of claim 1,
And the first step includes reading information stored in an identification code attached to the object to be measured.
The method of claim 3,
The identification code is a method for measuring and managing the status and history of the object to be measured, including a one-dimensional barcode, two-dimensional barcode, Quick Response (QR) code or two-dimensional code, or a combination thereof.
The method of claim 3,
The first step includes a step of irradiating light toward the identification code, adjusting a photographing angle of the camera in the irradiation direction of the light, and zooming in and photographing the identification code with the camera. How to measure and manage it.
The method of claim 5,
The first step further comprises the step of installing a light emitting means on or adjacent to the identification code.
The method of claim 1,
The second step is a method for measuring and managing the status and history of the object to be measured, including the step of sensing the temperature, vibration, or gas of the object to be measured by a thermometer, a vibrometer, or a gas meter installed in the measuring device.
The method of claim 1,
Collecting and storing the recognition information and the detection information by the smartphone, and outputting the state and history information of the at least one object to be measured on a display screen of the smartphone. How to measure and manage it.
Recognizing unit for recognizing the object to be measured;
A detector for detecting activity parameters of the measured object;
A communication unit configured to output recognition information and detection information of the object to be measured in a short range wireless communication method; And
Collecting and storing the information transmitted from the communication unit, outputting at least one state and history information of the measurement object on a display screen, and transmitting the state and history information of the measurement object to a control center through a mobile communication network or the Internet. A system for measuring and managing the status and history of an object under test, including a smartphone.
10. The method of claim 9,
The recognition unit is a system for measuring and managing the status and history of the object to be measured, including an RFID reader for exchanging data with an RFID (Radio Frequency IDentification) tag attached to the object to be measured.
10. The method of claim 9,
And the recognition unit includes a camera photographing an identification code attached to the object to be measured, and an identification information reading unit reading the identification information from an image photographed by the camera.
The method of claim 11,
The identification code is a system for measuring and managing the status and history of the object to be measured, including a one-dimensional barcode, two-dimensional barcode, Quick Response (QR) code or two-dimensional code, or a combination thereof.
The method of claim 11,
Further comprising a light irradiation unit for irradiating light having a wavelength shorter than the microwave or microwave toward the identification code,
And the camera measures and manages the status and history of the object to be measured by zooming in on the identification code based on the identification code or light emitting means installed adjacent to the identification code in response to the light of the light irradiation unit.
10. The method of claim 9,
The sensing unit measures and manages the status and history of the object under measurement including an infrared thermometer for sensing the temperature of the object under measurement.
10. The method of claim 9,
And a recognition unit, the detection unit, and the communication unit mounted thereon, the system for measuring and managing the status and history of the object to be measured including a measuring device independent of the smartphone.

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