KR20180078678A - A liquid gas pumping system - Google Patents

Abstract

Disclosed is a liquid gas pumping system capable of performing a predictive maintenance service. A plurality of IoT devices are arranged in components of the liquid gas pumping system. Each of the IoT devices includes at least one sensor arranged in the components, a communications unit for transmitting sensing data measured by the sensor, and a state display unit for displaying the state of the components. An IoT device controller collects sensing data from a plurality of IoT devices, checks the state of components of the liquid gas pumping system on the basis of the collected sensing data, and transmits a display control signal for displaying a checked state of the components on the state display unit to at least one of a plurality of IoT devices. According to the present invention, the state of the components of the liquid gas pumping system is checked in real time and is displayed on a state identification display device, so a site manager can perform maintenance or repair of components without special equipment.

Description

[0001] A LIQUID GAS PUMPING SYSTEM [0002]

The present invention relates to a liquid gas pumping system for pumping cryogenic liquid gas.

Liquefied natural gas (LNG) is a liquid fuel that is cooled to -162 ℃. Liquefied natural gas is reduced to 1 / 600th of its volume by liquefaction and easy to transport. Various natural gas extraction methods (new natural gas oil, sail gas, etc.) It is attracting attention as an energy source that can supply and receive the most stable energy. The cryogenic liquid gas pumping system is used for conveying and pressurizing liquefied natural gas, and is being used in carrier ships, introduction bases, liquefaction bases, and chemical plants. Demand is increasing in the background due to increased demand for clean energy.

The cryogenic liquid gas pumping system is very sensitive to safety because it deals with cryogenic liquid gas which is explosive. In particular, a cryogenic liquid gas pumping system includes a plurality of cryogenic liquid gas pumping systems for determining component parts such as cryogenic liquid gas storage tanks, liquid gas pumps, transfer tubes, valves, etc., temperature, pressure, flow rate, displacement, Sensors, and a plurality of metering systems. Because cryogenic liquid gas pumping systems vary in operating conditions in real time with many variables, immediate failure and gas leak diagnostic processing is required for safe and efficient operation. However, the conventional cryogenic liquid gas pumping system diagnoses and repairs by using the direct diagnostic equipment only when the field manager has a predetermined schedule or failure. Direct diagnosis and repair of field managers is difficult and time-consuming to locate faulty parts. In particular, cryogenic liquid gas pumping systems, which are highly sensitive to safety, require immediate diagnosis and repair.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid gas pumping system capable of real-time fault diagnosis and treatment of a liquid gas pumping apparatus and a maintenance service for real-time diagnosis and treatment of gas leakage.

A liquid gas pumping system for achieving the above-described objects is disclosed. A plurality of IoT devices are disposed in the components of the liquid gas pumping system. The IoT device includes at least one sensor disposed on the component, a communication unit for transmitting the sensed data measured by the sensor, and a state identification display unit for displaying the state of the component. The IoT device controller collects sensed data from the plurality of IoT devices, checks the status of the components of the liquid gas pumping system in real time based on the collected sensed data, identifies the status of the identified components A display control signal is transmitted to at least one of the plurality of IoT devices so as to be displayed on the status identification display unit.

The components of the liquid gas pumping system include a liquid gas reservoir, a liquid gas pump for pumping the liquid gas from the liquid gas reservoir to a target location, a liquid gas reservoir and a liquid gas pump, and a liquid gas A transfer tube, and at least one valve disposed in the liquid gas transfer tube.

The state identification display unit may include a plurality of multi-colored LEDs and a speaker.

A liquid gas pumping system according to another embodiment of the present invention includes at least one sensor disposed on a component of the liquid gas pumping system and disposed on the component, a communication unit for transmitting sensed data measured by the sensor, An IoT device controller for collecting sensed data from the plurality of IoT devices and controlling the plurality of IoT devices; and an IoT device controller for controlling the plurality of IoT devices, A display control signal for displaying the status of the component parts of the liquid gas pumping system on the basis of the received sensed data, To the IoT device controller.

It is preferable not to transmit the display control signal of the status identification display section when the status of the identified component is the same as the current display status of the status identification display section.

The plurality of IoT devices may receive and store a user authentication code, and may perform an authentication procedure of a field manager based on the stored user authentication code.

The liquid gas pumping system according to the present invention can operate the liquid gas pump at an optimum efficiency in real time, thereby improving the energy consumption efficiency and the liquid gas transfer efficiency.

In particular, a liquid gas pumping system is capable of diagnosing and treating real-time failures and gas leaks of components of a liquid gas pumping system by collecting and analyzing status data in real time.

1 is a schematic diagram showing a remote control device of a liquid gas pumping system according to an embodiment of the present invention,
2 is a block diagram showing a remote control device of a liquid gas pumping system according to an embodiment of the present invention, and Fig.
3 is a flow chart showing a remote control device of a liquid gas pumping system according to an embodiment of the present invention.

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. It should be understood, however, that it is not intended to be limited to the particular embodiments of the invention but includes various modifications, equivalents, and / or alternatives of the embodiments of the invention. In connection with the description of the drawings, like reference numerals may be used for similar components.

In this specification, the expressions " having, " " having, " " comprising, "Quot;, and does not exclude the presence of additional features.

As used herein, the expressions "A or B," "at least one of A and / or B," or "one or more of A and / or B," may include all possible combinations of the listed items . For example, "A or B," "at least one of A and B," or "at least one of A or B" includes (1) at least one A, (2) Or (3) at least one A and at least one B all together.

The expressions " first, " " second, " " first, " or " second, " and the like in this specification are intended to encompass various components, regardless of their order and / or importance, Do not. These representations may be used to distinguish one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as a second component, and similarly, the second component may be named as the first component.

When a component (e.g., a first component) is referred to as being "coupled with /" or "contacted" with another component (eg, a second component) It should be understood that an element may be directly connected to another element or may be connected through another element (e.g., a third element). On the other hand, when it is mentioned that a component (e.g., a first component) is "directly connected" or "directly contacted" to another component It can be understood that there is no other component (e.g., a third component) between the elements.

The phrase " configured to be used " as used herein should be interpreted according to circumstances, such as, for example, having " having the capacity to, To be designed to, "" adapted to, "" made to, "or" capable of ". The term " configured (or set) to " may not necessarily mean " specifically designed to " Instead, in some situations, the expression " configured to " may mean that the device can " do " with other devices or components.

The terminology used herein is for the purpose of describing particular embodiments only and may not be intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. Commonly used predefined terms may be construed as having the same or similar meaning as the contextual meanings of the related art and are not to be construed as ideal or overly formal in nature unless explicitly defined herein. Optionally, terms defined herein may not be construed to exclude embodiments of the present disclosure.

1 is a schematic diagram showing a liquid gas pumping system 1 according to an embodiment of the present invention. The liquid gas pumping system includes a liquid gas pumping device 1, an IoT device main controller 100, an Internet network 200, a main administrator mobile device 300, and a subadministrator mobile device 400.

The liquid gas pumping apparatus 1 includes a liquid gas reservoir 10 for storing a liquid gas, a liquid gas pump 20 for pumping the liquid gas from the liquid gas reservoir 10 to target positions (Target 1 to 4) A liquid gas delivery pipe (30, 40, 50) for connecting between the liquid gas reservoir (10) and the liquid gas pump (20) and between the liquid gas pump (20) and the target positions Include as parts.

The liquid gas reservoir 10 compresses a liquid gas such as natural gas, nitrogen gas, argon gas, propane gas, etc. at an extremely low temperature of -196 DEG C or lower and liquefies and stores it. The liquid gas reservoir 10 includes a CPU 1 13, a communication module 1 14, a physical sensor 1 (1-n) 15, a memory 1 16, a status identification display 1 17, Lt; RTI ID = 0.0 > IoT < / RTI >

The gas tank IoT device 12 measures the state of the liquid gas reservoir 10 in real time using the physical sensors 1 (1-n) 15. 2, although the gas tank IoT device 12 includes a plurality of physical sensors 1 (1-n) 15, the gas tank IoT device 12 includes a plurality of gas tanks IoT It is also possible to install the device 12. In other words, if the physical sensors are located close to each other and the wired installation is easy, only one can be installed integrally.

The CPU 1 13 is connected to the components of the gas tank IoT device 12 such as the communication module 1 14, the physical sensors 1 (1-n) 15, the memory 1 16, (17), and power supply 1 (18). The CPU 1 13 parses the data acquisition method setting message transmitted by the IoT device main controller 100 and applies it to the physical sensors 1 (1-n) 15. CPU 1 13 may be a central processing unit (CPU), a microprocessor unit (MPU), application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs) A control board including FPGAs (field programmable gate arrays), micro-controllers, microprocessors, and the like, and may be implemented by a combination of hardware and software.

The CPU 1 13 sends status data such as temperature data, pressure data, displacement data, and vibration data measured by the physical sensors 1 (1-n) 15 to the IoT To the device main controller 100 in real time. The state data measurement method can be patched by the IoT device main controller 100 as needed. The measurement method uses polling and push. Polling is a method by which a user periodically reads data from a sensor, and pushing is a method of transmitting data to a user when a specific event occurs on the sensor side. There are also model-driven and batching methods that are optimized based on push. When the sensor data is not frequently processed, it is advantageous to use a batching method in which the sensor data is collected and transmitted. When the small change of the sensor data is meaningless, the model driven method of transmitting only when the sensor data changes greatly It is advantageous. When the sensor device can not use the batching or model driving method in hardware, the polling method may be inevitable.

The CPU 1 (13) displays the state identification display section 17 according to the display control signal sent from the IoT device main controller 100. The CPU 1 13 stores the user authentication code sent from the IOT device main controller 100 in the memory 1 16 and performs user authentication through the communication module 1 14 and a user input unit (not shown).

The communication module 1 (14) communicates with the IoT device main controller 100. The communication module 1 (14) includes an IoT communication module, a USB communication module, an NFC communication module, and a Wifi communication module. The communication module 1 14 includes a data communication module such as VDSL, Ethernet, Token Ring, high definition multimedia interface (HDMI), USB, component, LVDS and HEC, 2G, 3G, 4G, Long Term Evolution Wireless Internet modules such as WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) A short distance communication module such as RFID (Radio Frequency Identification), IrDA (Infrared Data Association), UWB (Ultra Wide Band), ZigBee, etc. can be applied.

The physical sensors 1 (1 to n) 15 include a temperature sensor, a pressure sensor, a displacement sensor, and a vibration sensor disposed inside and outside the gas tank. The physical sensors 1 (1 to n) may be a three-axis acceleration sensor, a microphone, a gyroscope, a geomagnetism sensor, a gravity sensor, a light sensor, a digital compass, Sensors, and the like.

The memory 1 (16) stores unlimited data. The memory 1 (16) is accessed by the CPU 1 (13), and reading, writing, modifying, deleting, updating and the like of data by these are performed. The memory 1 16 stores, for example, a user authentication code and state data collected by the physical sensors 1 (1 to n) 15. Of course, the memory 1 16 may include an operating system, various applications executable on the operating system, and the like.

The memory 1 16 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 random access memory (SRAM), a read only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM) , An optical disc, and the like.

The state identification display unit 17 is embodied as a multi-colored LED and a speaker (buzzer) for displaying the state of the gas tank. Among the multicolor LEDs, red can indicate failure or abnormal signal, blue signal is normal, and yellow signal can be displayed in real time. The speaker (buzzer) outputs sound for various troubles or inspections. In addition to the LED, an LCD, a PDP, an OLED, or the like may be applied to the status identification display unit 17 (17).

The power supply 1 18 supplies electric power for driving components of the gas tank IoT device 12. Power source 1 (18) can be adapted to a solar module or a secondary battery depending on the location.

The liquid gas pump 20 is a cryogenic submerged motor pump. The liquid gas pump 20 has no deformation even when exposed to a cryogenic temperature and a high pressure for a long period of time, and has a subzero-treated impeller and a housing for preventing cryogenic deformation and leakage, a low power high efficiency motor (not shown) . The liquid gas pump 20 is controlled in real time by the CPU, the IoT device main controller 100, the mobile device 300, and a server (not shown). The liquid gas pump (20) includes a pump IoT device (22).

The pump IoT device 22 includes a CPU, a communication module, a physical sensor, a memory, a status identification display, and a power source, similar to the gas tank IoT device 12. The pump IoT device 22 may be provided for only one of a plurality of physical sensors and the pump 20, or may be provided for each part of the pump or each physical sensor. The CPU generally controls the components of the pump IoT device 22 and the pump 20. The CPU parses the data acquisition method setting message transmitted by the IoT device main controller 100 and applies it to the physical sensor 1-n (28). Also, the pump IoT device 22 acquires data related to the motor rotation speed, the operation voltage, the operation current, the vibration, the temperature, the pressure, and the like in the physical sensor in accordance with the set acquisition method and supplies it to the IoT device main controller 100). The state data measurement method can be patched by the IoT device main controller 100 as needed. The pump IoT device 22 controls the pump 20 in accordance with the control signal transmitted from the IoT device main controller 100. Of course, when the pump 20 has its own control unit, it can only transmit a control signal to the pump 20.

 The pump IoT device 22 displays the status, normal, check, failure, gas leakage, etc. of the pump in a status identification display composed of a multicolor LED and a speaker (buzzer) according to a control signal of the IoT device main controller 100.

The gas tank inlet-side transfer pipe 30 is a pipeline for transferring the liquid gas from the external liquid gas source to the gas tank 20. The gas tank inlet-side transfer pipe 30 includes at least one valve (V IoT1). The valve V IoT1 can shut off or pass the liquid gas flowing through the gas tank inlet-side transfer pipe 30 manually or automatically. The gas-tank inlet-side transfer pipe 30 includes a gas-tank inlet-side IoT device 32. The gas tank inlet side IoT device 32 includes a CPU, a communication module, a physical sensor, a memory, a status identification display, and a power source, similar to the gas tank IoT device 12. The gas tank inlet-side IoT device 32 measures or obtains data related to the flow rate, temperature, pressure, vibration, etc. of the liquid gas passing through the transfer pipe 30 through the physical sensor. The IoT device 32 on the inlet side of the gas tank may be integrated with only one physical sensor and four valves, or may be provided for each valve and physical sensor.

The gas tank inlet-side IoT device 32 measures data related to the flow rate, vibration, temperature, pressure, and the like in the physical sensors 1-n and 38 according to the set acquisition method and supplies them to the IoT device main controller 100 through the communication module. In real time. The state data measurement method can be patched by the IoT device main controller 100 as needed. The gas tank inlet side IoT device 32 controls the valve in accordance with the control signal transmitted from the IoT device main controller 100. Of course, when the valve 31 has its own control unit, it can only transmit the control signal to the control unit (not shown) of the valve. The gas tank inlet side IoT device 32 is connected to the state identification display composed of a multicolor LED and a speaker (buzzer) in accordance with a control signal of the IoT device main controller 100, Failure, or gas leakage.

The gas tank outlet side transfer pipe 40 is a pipeline disposed between the liquid gas reservoir 10 and the liquid gas pump 20. The gas tank outlet-side transfer pipe 40 has a discharge pipe 40-1 for transferring the liquid gas from the liquid gas reservoir 10 to the liquid gas pump 20 and a discharge pipe 40-1 for discharging the liquid gas from the liquid gas pump 20 to the liquid gas reservoir 10 And a return conveying pipe 40-2 for returning the liquid gas to the outside. The gas tank outlet-side transfer pipe 40 includes a plurality of valves V IoT2, V IoT3. The valve V IoT3 can shut off or pass the liquid gas flowing through the gas tank outlet-side transfer pipe 40 manually or automatically. The gas tank outlet-side transfer pipe 40 includes the gas tank outlet-side IoT device 42. The gas tank outlet IoT device 42 includes a CPU, a communication module, a physical sensor, a memory, a status identification display, and a power source, similar to the gas tank IoT device 12. The gas tank outlet-side IoT device 42 measures or obtains data relating to the flow rate, temperature, pressure, vibration, etc. of the liquid gas passing through the transfer pipe 40 through the physical sensor. The IoT device 42 on the outlet side of the gas tank may be provided with only one physical sensor and one valve, or may be provided for each valve and physical sensor.

The gas tank outlet-side IoT device 42 parses the data acquisition scheme setting message transmitted by the IoT device main controller 100 and applies it to the physical sensor. The gas tank outlet-side IoT device 42 measures data related to the flow rate, vibration, temperature, pressure, and the like in the physical sensor according to the set acquisition method, and transmits the data to the IoT device main controller 100 through the communication module in real time. The state data measurement method can be patched by the IoT device main controller 100 as needed. The gas tank outlet-side IoT device 42 controls the valve and the physical sensor in accordance with the control signal transmitted from the IoT device main controller 100. Of course, when the valves and the physical sensors have their own control units, they can only transmit control signals to the control unit (not shown) of the valves. The gas tank outlet IoT device 42 displays the status of the transfer pipe 40, for example, normal, check, and the like, on the status identification display configured by the multi-color LED and the speaker (buzzer) according to the control signal of the IoT device main controller 100. [ Failure, or gas leakage.

The pump outlet-side transfer pipes 50 and 50-1 to 50-4 are pipelines arranged between the liquid gas pump 20 and target positions (Target 1 to 4). And sub conveyance pipes 50-1 to 50-4 for conveying the liquid gas to respective target positions (Target 1 to 4) in the pump outlet-side conveyance pipe 50. The pump outlet-side transfer pipes 50, 50-1 to 4 include a plurality of valves V IoT4 to V IoT8. The valves V IoT4 to V IoT8 can shut off or pass the liquid gas flowing through the liquid gas pump outlet-side transfer pipe 50 manually or automatically. The pump outlet-side transfer pipes (50, 50-1 to 4) include a pump-outlet-side IoT device (52). The pump outlet IoT device 52 is connected to the CPU 6 (63), the communication module 6 (64), the physical sensor 6 (65), the memory 6 (66), the status identification display 6 (67) And a power source 6 (68). The pump outlet-side IoT device 52 measures or obtains data related to the flow rate, temperature, pressure, vibration, etc. of the liquid gas passing through the transfer pipe 50 by the physical sensor 6 (65). The pump outlet-side IoT device 52 is provided with only one physical sensor 6 (1 to n) 65 and the valves V IoT 3 to 7, or each of the r valves (V IoT 3 to 7) It may be provided for each of the sensors 6 (1 to n) 65.

The pump outlet IoT device 52 parses the data acquisition method setting message transmitted by the IoT device main controller 100 and applies it to the physical sensor 6 (65). In addition, the pump outlet-side IoT device 52 measures data related to the flow rate, vibration, temperature, pressure, and the like in real time in the physical sensor 6 (65) according to the set acquisition method and transmits them to the IoT device main controller 100 in real time. The state data measurement method can be patched by the IoT device main controller 100 as needed. The pump outlet-side IoT device 52 controls the valves V IoT 3 to 7 and the physical sensors 6 (1 to n) 65 in accordance with the control signal transmitted from the IoT device main controller 100. Of course, when the valves V IoT 3 to 7 and the physical sensors 6 (1 to n) 65 have their own control units, they can only transmit control signals to the control unit (not shown). The pump outlet-side IoT device 52 displays the state of the transfer tube 50, for example, normal, check, failure (failure), or the like, on the status identification display composed of the multi- , Gas leakage, and the like.

The IoT device main controller 100 collects and analyzes the status data of the liquid gas pumping device 1 from the plurality of IoT devices 12, 22, 32, 42 and 52 and analyzes the status data of the plurality of IoT devices 12 658, the plurality of valves V IoT 1-7, and the liquid gas pump 20 by transmitting control signals to the control valves 22, 32, 42, The IoT device main controller 100 includes a first processor 110, a first memory 120, a first communication module 130, a first UI section 140 and a first display 150.

The first processor 110 generally controls the components of the IoT device main controller 100. The first processor 110 may be a central processing unit (CPU), a microprocessor unit (MPU), application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs) , Field programmable gate arrays (FPGAs), micro-controllers, microprocessors, and the like, and may be implemented as a combination of hardware and software. The first processor 110 can process the input, detected various state data, etc., received from the plurality of physical sensors 15, ..., 65 via the communication or network, in a software or hardware manner have. The first processor 110 may include an operating system (OS). In addition, the first processor 110 may include an application (program) for processing various types of input or processed information. The first processor 110 transmits the data acquisition setup message and the control signal input through the first UI unit 140 or requested by the user terminal 300 and the server (not shown) to the respective IoT devices 12, 22, 32, 42, and 52, respectively. The first processor 110 analyzes the state data received from the IoT devices 12, 22, 32, 42 and 52 to determine the current components of the liquid gas pumping device 1, the gas tank 1, The state of the pump 20, the transfer tubes 30, 40, 50 and the valves VitoT 1-7 can be checked. The first processor 110 transmits a display control signal to the status identification display units 17 ... 67 of the respective IoT devices 12, 22, 32, 42, 52 according to the status of the identified parts. At this time, the first processor 110 may omit transmission of the display control signal to the IoT devices 12, 22, 32, 42, and 52 which are the same as those recorded immediately before. In some cases, the display control signals may be transmitted to all the IoT devices 12, 22, 32, 42, and 52 in a lump, and control may be omitted in the corresponding IoT devices. The first processor 110 may process the authentication of the field manager by transmitting a user authentication code for user authentication to the IoT devices 12, 22, 32, 42, This can prevent the access of the liquid gas pumping device 1 by the unauthorized user to prevent the danger.

The first processor 110 may analyze the state data received from the IoT devices 12, 22, 32, 42, 52 to confirm the current state of the liquid gas pump 20. For example, when the normal range of the liquid gas pumping ability of the liquid gas pump 20 is set to a range of values such as a driving current (motor speed) and a liquid gas discharge flow rate, the first processor 110 controls the pump IoT device The state data of the liquid gas pump 20 collected from the IoT device 22 and the flow rate, pressure and temperature of the liquid gas collected from the IoT device 42 on the outlet side of the gas tank and the IoT device 42 on the pump outlet side It is possible to determine whether the liquid gas pump 20 is normal, overloaded, over-vibration, or under pressure. That is, after the movable range of the steady state is set in advance, the state of the present liquid gas pump 20 is checked based on the collected state data, and the cause of the abnormal state, that is, the overload, overpressure, Control (shut off, adjust) the valve through the IoT device 12, 22, 32, 42, 52 or lower or stop the pump's running current depending on the identified cause. The first processor 110 includes an IoT middleware platform, a real-time event processing (CEP) engine, and application services.

The IoT middleware platform includes a driver manager that manages device and connection management, a device manager that manages device registration, list management, device status and configuration, a software development kit (SDK) that provides IoT device types and IoT device developers ) Library Generator SDK Generator, System Manager with configuration and management of IoT platform itself, Push technology to IoT devices, Notification Manager as notification manager, and Push technology to IoT devices A Configuration Manager as a configuration service manager that provides firmware updates, and a Data Event Manager that performs a logging service that records and saves data transmitted from the IoT device.

CEP engine is a classification manager for data received by real-time streaming. Data Steam Manager, data processing manager for real-time data Topology, system stream manager and topology executor Manager as an integrated manager, clustering integrator for engine clustering And Cluster Manager.

The application service is a service that monitors the status information of data generated from the IoT device in real time. It checks the status of the Dashboard Service and IoT device that performs the service that provides the monitoring data when requesting data from the user UI, And control service for controlling a device such as a valve, a liquid gas pump, and a physical sensor through IoT middleware when a control request is made in the user UI as a control service.

The first communication unit 120 may communicate with the IoT devices 12, 22, 32, 42, 52 and the mobile devices 300, 400. The first communication unit 120 may include a data communication module such as VDSL, Ethernet, Token Ring, high definiiom.ultimedia interface (HDMI), USB, component, LVDS, HEC, 2G, A wireless Internet module such as a WLAN (Wi-Fi), a Wibro (Wireless broadband), a Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) , An RFID (Radio Frequency Identification), an IrDA (Infrared Data Association), a UWB (Ultra Wideband), a ZigBee, and the like.

The first memory 130 stores unlimited data. The first memory 130 is accessed by the first processor 110, and data is read, written, modified, deleted, updated, and the like. The data stored in the first memory 130 stores, for example, state data received from the IoT devices 12, 22, 32, 42, 52 and component state information of the liquid gas pumping device 1 . Of course, the first memory 130 may include an operating system, various applications executable on the operating system, and the like. The first memory 130 may include a program (application) for performing state data processing and analysis collected by the IoT devices 12, 22, 32, 42,

The first memory 130 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) (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) A disk, and / or an optical disk.

 The first UI unit 140 includes various input devices such as a touch screen, a keyboard, a touch pad, and a mouse as an interface for receiving input from a user. The first UI unit 140 receives a user input for controlling the liquid gas pump 20, the valves VitoT 1-7, and the physical sensors 15, ..., 65. The first UI unit 140 includes a GUI (Graphical User Interface) displayed on the first display 150 by outputting various programs executed by the IoT device main controller 100.

The first display 150 may display an image or graphic processed by an image processing unit (not shown) or a graphics processing unit (not shown). The first display 150 displays images output from various programs executed by the IoT device main controller 100 and images transmitted from the IoT devices 12, 22, 32, 42, and 52. The first display unit 150 may be implemented by a liquid crystal panel including a liquid crystal layer or an organic light emitting panel including a light emitting layer formed of an organic material, a plasma display panel, or the like.

The first display unit 150 may further include an additional configuration depending on an implementation method. The first display unit 150 may include, for example, a prism film, a polarizing film, an LCD cell, a color filter, and the like depending on the backlight, the polarization characteristic, and the light-

The main manager mobile device 300 receives various data from the IoT device main controller 100 using the wired / wireless Internet network and analyzes the data to analyze the components of the liquid gas pumping device 1, the IoT device main controller 100, a control signal for controlling the valves V IoT 1-7, the liquid gas pump 20 and the plurality of physical sensors 15, ..., 65 is transmitted. The main manager mobile device 300 receives the status data received from the IOT device main controller 100 to check the current liquid gas pump operation status and controls the valves V IoT 1-7 to enter the effective operation range in the abnormal state. The liquid gas pump 20, and the plurality of physical sensors 15, ..., The main manager mobile device 300 analyzes the status data itself or receives only the results analyzed by the IoT device main controller 100 or the server (not shown) and controls the valves V IoT 1-7, liquid gas pump 20 and the plurality of physical sensors 15, ..., 65 may be controlled.

The main manager mobile device 300 includes a second processor 310, a second memory 320, a second communication module 330, a second UI unit 340 and a second display 350.

The second processor 310 controls the components of the main manager mobile device 300 as a whole. The second processor 110 may include a central processing unit (CPU), a microprocessor unit (MPU), application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs) , Field programmable gate arrays (FPGAs), micro-controllers, microprocessors, and the like, and may be implemented as a combination of hardware and software.

 The second processor 310 can process the input, detected various status data, etc., received from the plurality of physical sensors 15, ..., 65 via the communication or network, in a software or hardware manner have. The second processor 310 may include an operating system (OS). In addition, the second processor 310 may include an application (program) for processing various types of input or processed information. The second processor 310 transmits the data acquisition setup message and the control signal inputted through the second UI unit 340 or requested by the user terminal 300, the server (not shown) to the respective IoT devices 12, 22, 32, 42, and 52, respectively.

The second processor 310 analyzes the state data received from the IoT devices 12, 22, 32, 42 and 52 to determine the current components of the liquid gas pumping device 1, the gas tank 1, The state of the pump 20, the transfer tubes 30, 40, 50 and the valves VitoT 1-7 can be checked. The second processor 310 transmits a display control signal to the status identification display unit 17 ... 67 of each IoT device 12, 22, 32, 42, 52 according to the status of the identified parts. At this time, the second processor 310 may omit transmission of the display control signal to the IoT devices 12, 22, 32, 42, and 52 which are the same as those recorded immediately before. In some cases, the display control signals may be transmitted to all the IoT devices 12, 22, 32, 42, and 52 in a lump, and control may be omitted in the corresponding IoT devices. The second processor 310 may process the authentication of the field manager by transmitting a user authentication code for user authentication to the IoT devices 12, 22, 32, 42, This can prevent the access of the liquid gas pumping device 1 by the unauthorized user to prevent the danger.

The second processor 310 processes various status data of the plurality of physical sensors 15, ..., 65 collected from the IoT device main controller 100 through the communication or network in a software or hardware manner . The second processor 310 may include an operating system (OS). In addition, the second processor 310 may include an application (program) for processing various types of input or processed information. The second processor 310 transmits a data acquisition setup message, a control signal, and the like input through the second UI unit 340 to the IoT device main controller 100. The second processor 310 can analyze the state data received from the IoT device main controller 100 to confirm the current state of the liquid gas pump. For example, when the normal range of the liquid gas pumping ability of the liquid gas pump 20 is set to a range of values such as a driving current (motor speed) and a liquid gas discharge flow rate, It is possible to determine whether the liquid gas pump 20 is in a normal state, an overload state, an overvoltage state, or a overpressure state by referring to the state data of the liquid gas 20, the flow rate of the liquid gas, the pressure, That is, after the movable range of the steady state is set in advance, the state of the present liquid gas pump 20 is checked based on the collected state data, and the cause of the abnormal state, that is, the overload, overpressure, (Shut off, adjust) the valve through the IoT device main controller 100 according to the identified cause, or to lower or stop the pump current. The second processor 310 includes an IoT middleware platform, a real-time event processing (CEP) engine, and an application service.

The IoT middleware platform includes a driver manager that manages device and connection management, a device manager that manages device registration, list management, device status and configuration, a software development kit (SDK) that provides IoT device types and IoT device developers ) Library Generator SDK Generator, System Manager with configuration and management of IoT platform itself, Push technology to IoT devices, Notification Manager as notification manager, and Push technology to IoT devices A Configuration Manager as a configuration service manager that provides firmware updates, and a Data Event Manager that performs a logging service that records and saves data transmitted from the IoT device.

CEP engine is a classification manager for data received by real-time streaming. Data Steam Manager, data processing manager for real-time data Topology, system stream manager and topology executor Manager as an integrated manager, clustering integrator for engine clustering And Cluster Manager.

The application service is a service that monitors the status information of data generated from the IoT device in real time. It checks the status of the Dashboard Service and IoT device that performs the service that provides the monitoring data when requesting data from the user UI, And control service for controlling a device such as a valve, a liquid gas pump, and a physical sensor through IoT middleware when a control request is made in the user UI as a control service.

The second processor 310 may perform a service that is not overlapped or overlapped with the first processor 110. [ That is, confirming the operating state of the liquid gas pump 20 and the state of the components of the liquid gas pumping device 1 through the analysis and processing of the collected state data is performed by the IoT device main controller 100, 300, and a server (not shown). Similarly, after confirming the operation state of the liquid gas pump 20, the valves and the pump control can be performed either singly or in duplicate among the IoT device main controller 100, the main manager mobile device 300, and the server (not shown).

The second communication module 320 may communicate with the IoT device main controller 100 and the sub-administrator mobile device 400 connected to the network. The second communication unit 320 includes a data communication module such as a VDSL, an Ethernet, a token ring, a high definition multimedia interface (HDMI), a USB, a component, a LVDS, a HEC, a 2G, 3G, 4G, Long Term Evolution Wireless Internet modules such as WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) A short distance communication module such as RFID (Radio Frequency Identification), IrDA (Infrared Data Association), UWB (Ultra Wide Band), ZigBee, etc. can be applied.

The second memory 330 stores unlimited data. The second memory 330 is accessed by the second processor 310, and the data is read, written, modified, deleted, updated, and so on. The data stored in the second memory 330 stores, for example, status information received from the IoT device main controller 100 and status information of the status identification display units 17, ..., 67. Of course, the second memory 330 may include an operating system, various applications executable on the operating system, and the like. The second memory 330 may include a program (application) for performing state data processing and analysis collected by the IoT devices 12, 22, 32, 42,

The second memory 330 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) (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) A disk, and / or an optical disk.

 The second UI unit 340 includes various input devices such as a touch screen, a keyboard, a touch pad, and a mouse as an interface for receiving input from a user. The second UI section 340 receives user inputs for controlling the valves V IoT 1-7, the liquid gas pump 20 and the plurality of physical sensors 15, ..., 65. The second UI unit 340 includes a graphic interface (GUI) that is output to various programs executed in the mobile device 300 and displayed on the second display 350.

The second display 350 may display an image or graphic processed by an image processing unit (not shown) or a graphics processing unit (not shown). The second display 350 displays an image output from various programs executed in the mobile device 300 and an image collected from the IoT devices 12, 22, 32, 42 and 52. The second display unit 350 may be implemented by a liquid crystal panel including a liquid crystal layer or an organic light emitting panel including a light emitting layer composed of organic materials, a plasma display panel, or the like.

The second display unit 350 may further include an additional configuration depending on an implementation method. For example, the second display unit 350 may include a prism film, a polarizing film, an LCD cell, a color filter, and the like depending on the backlight, the polarization characteristic, and the light focusing characteristics of the illumination light.

3 is a flowchart showing the operation of the liquid gas pumping apparatus 1 according to another embodiment of the present invention.

In step S11, the plurality of IoT devices 12, 22, 32, 42, 52 arranged in the respective components of the liquid gas pumping device 1 individually measure the status data for each part in real time. At this time, the state data are data of temperature, pressure, displacement, vibration, etc. inside and outside the liquid gas reservoir 10, state data of the various valves VitoT 1-7, liquid gas passing through the transfer tubes 30-50 Flow rate, temperature, pressure, operating condition data of the liquid gas pump, and the like. The IoT device main controller 100 collects the status data separately measured by the plurality of IoT devices 12, 22, 32, 42, and 52 in real time.

In step S12, the IoT device main controller 100 transmits the collected status data to the mobile device 300 of the main manager. If the IoT device main controller 100 performs the analysis, only the analysis result may be transmitted to the main manager mobile device 300 or the server (not shown), or transmission may be omitted

The state data collected by at least one of the IoT device main controller 100, the server (not shown) and the main manager mobile device 300 is compared with the state data in the steady state in step S13, Diagnose the status of each component.

In step S14, it is confirmed whether or not at least one of the IoT device main controller 100, the server (not shown), and the main administrator mobile device 300 is out of a predetermined range, It is judged that the state of the gas sensor is a failure, an inspection, a normal state, and a gas leakage state.

If the condition of the components of the liquid gas pumping device 1 is normal, the process is terminated.

The state of the liquid gas pumping device 1 is a failure or a gas leakage in step S14 and a display control signal is transmitted to the LED and / or the speaker of the corresponding IoT device in step S15, Failure or gas leak information is notified. Here, safety control such as basic valve shutoff and liquid gas pump shutdown can be simultaneously processed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention as defined by the appended claims. Modifications and modifications are possible.

Therefore, the scope of the present invention should not be limited by the exemplary embodiments described, but should be determined by the scope of the appended claims, as well as the appended claims.

10: Liquid gas storage
12: Gas tank IoT device
20: Liquid gas pump
22: Pump IoT device
30: Gas tank inlet pipe
32: Gas tank inlet side IoT device
40: Gas tank outlet pipe
42: Gas tank outlet side IoT device
50: Pump outlet pipe
52: IoT device at the pump outlet side
100: IoT device main controller
200: Internet network
300: Main Admin Mobile Device
400: Sub-manager mobile device

Claims (6)

In a liquid gas pumping system,
And at least one sensor disposed in the component parts of the liquid gas pumping system, the sensor communicating sensed data measured by the sensor, and a state identifying display unit displaying a state of the component A plurality of IoT devices;
Collecting sensed data from the plurality of IoT devices, checking the status of the components of the liquid gas pumping system in real time based on the collected sensed data, and checking the status of the identified component parts to the status identification display part And an IoT device controller for transmitting a display control signal for display to at least one of the plurality of IoT devices.
The method according to claim 1,
The components of the liquid gas pumping system include a liquid gas reservoir, a liquid gas pump for pumping the liquid gas from the liquid gas reservoir to a target location, a liquid gas reservoir and a liquid gas pump, and a liquid gas A transfer tube, and at least one valve disposed in the liquid gas transfer tube.
The method according to claim 1,
Characterized in that the status identification display comprises a plurality of multicolored LEDs and speakers.
In a liquid gas pumping system,
And at least one sensor disposed in the component parts of the liquid gas pumping system, the sensor communicating sensed data measured by the sensor, and a state identifying display unit displaying a state of the component A plurality of IoT devices;
An IoT device controller for collecting sensed data from the plurality of IoT devices and controlling the plurality of IoT devices;
For receiving the collection sensing data from the IoT device controller, for checking the status of the components of the liquid gas pumping system based on the received sensing data, and for displaying the status of the identified component on the status identification display And a mobile device for transmitting a display control signal to the IoT device controller.
The method according to claim 1 or 4,
And does not transmit the display control signal of the status identification display section when the status of the identified component is the same as the current display status of the status identification display section.
The method according to claim 1 or 4,
Wherein the plurality of IoT devices receive and store a user authentication code and perform authentication of a field manager based on the stored user authentication code.

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