KR20190046168A - Data transportation system using remote controller device capable of controlling various communication modules for low power wide area - Google Patents

Abstract

An embodiment of the present invention relates to a data transmission system using a remote controller controlling various kinds of communication modules. The objective of the present invention is to provide a data transmission system using a remote controller controlling various kinds of communication modules, capable of bidirectionally communicating with an environment monitoring device such as a heater and a ventilator of an end device. To this end, the data transmission system of the present invention includes: an end node part accessing end devices installed in sensor terminals of a plurality of IoT devices sensing internal environment information of a specific space; a gateway part communicating with the end node part in a multiplex communication mode; a remote control part setting and changing a communication mode between the gateway part and the end node part, but changing the communication mode if communication performance between the end node part and the gateway part is equal to or less than a preset value after the determination of the communication performance; and a network server building a database of state information of the end node part and the gateway part, and providing the state information to the remote control part.

Description

TECHNICAL FIELD [0001] The present invention relates to a data transmission system using a remote control device capable of controlling a multi-type communication module,

One embodiment of the present invention relates to a data transmission system using a remote control device capable of controlling a multi-type communication module.

Internet of Things (IoT) is a technology in which intelligent objects are connected to the Internet to collect and apply various data through a network. Application areas of this technology include measurement of electricity, water and gas, control of parking, traffic volume, advertising, urban management, livestock management, environmental detection, animal movement detection, forest fire monitoring, earthquake monitoring, factory control etc. There are numerous applications in the industrial field.

Various broadband and short range communication technologies (ZigBee, Bluetooth, Wi-Fi, SUN, LoRa) can be applied to realize this. Various IoT gateways to which each technology is applied are being developed.

However, the conventional IoT system using the Wi-Fi or LTE communication network has a problem that it can not be used when the subscriber is disconnected from the network.

Also, when the IoT system is built wirelessly, there is a problem that the battery or the like of the sensor or the device (terminal) is very consumed and the IoT system can not be used when there is no battery.

Korean Patent Laid-Open Publication No. 10-2016-0147595 (entitled " IoT module for integrated control of objects to be measured and controlled)

One embodiment of the present invention provides a data transmission system using a remote control device capable of controlling a multi-type communication module capable of bidirectional communication with an environment monitoring device such as an end device ventilator, a heater, etc., as an IoT remote controller using a LoRA network.

The data transmission system using the remote control device capable of controlling the multi-species communication module according to an embodiment of the present invention includes a plurality of IoT devices for sensing environment information in a specific space, A node unit; A gateway unit communicating with the end node unit through a multiple communication scheme; A remote control unit for setting and changing a communication mode between the gateway unit and the end node unit and determining a communication capability between the end node unit and the gateway unit, part; And a network server for constructing state information of the end node unit and the gateway unit in a database and providing the state information to the remote control unit.

The end node unit may include an embedded board for controlling each of the plurality of end devices using firmware.

Wherein the gateway unit communicates with the end node unit using the multiple communication method including at least one of IRDA, Zigbee, WiFi, Bluetooth, Z-wave, SUN, Insteon, BLE, UWB, LoRAWAN A plurality of communication modules; A communication interface for providing any one of the multiple communication methods to the end node unit based on an event signal of the remote control unit; And a communication interface changing unit for changing the communication interface when the communication performance is less than or equal to a predetermined value after the communication performance between the end node unit and the gateway unit is determined.

The communication interface unit may provide any one of the multiple communication methods to each of the plurality of end devices connected to the end node unit.

The communication interface changing unit may change the RSSI, the packet delay (IPTD), the packet delay (IPDV), the packet loss rate (IPLR), and the packet error rate (IPER) between the end device of the end node unit and the communication module of the gateway unit The communication performance of the communication interface can be determined based on the communication performance of the communication interface.

The LoRA module remote control device capable of controlling the multi-type communication module according to an embodiment of the present invention is a remote controller dedicated to IoT using the LoRA network and enables bidirectional communication with environmental monitoring devices such as ventilators and heaters of end devices, Can be improved.

1 is a conceptual diagram schematically showing a data transmission system using a remote controller capable of controlling a multi-type communication module according to an embodiment of the present invention.
2 is a block diagram specifically illustrating the gateway unit of FIG.
3 is a diagram illustrating an exemplary computing environment in which one or more embodiments disclosed herein may be implemented.
4 is a block diagram illustrating a configuration for fast / slow charging of a data transmission system using a remote controller capable of controlling a multi-type communication module according to various embodiments of the present invention.
5 is a flowchart illustrating a fast / slow charging sequence during operation of a data transmission system using a remote controller capable of controlling a multi-type communication module according to various embodiments of the present invention.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as " including " an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Also, the terms " part, " " module, " and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

FIG. 1 is a conceptual diagram schematically showing a data transmission system using a remote control device capable of controlling a multi-type communication module according to an embodiment of the present invention. FIG. 2 is a block diagram specifically showing the gateway unit of FIG. Figure 1 illustrates an exemplary computing environment in which one or more embodiments disclosed herein may be implemented.

1, a data transmission system 100 using a remote control device capable of controlling a multi-type communication module according to an embodiment of the present invention includes an end node unit 110, a gateway unit 120, (130) and a network server (140).

The end node unit 110 is a module connected to end devices (not shown) provided in sensor terminals (not shown) of a plurality of IoT devices for sensing environmental information in a specific space.

The end node unit 110 may include an embedded board (not shown) for controlling each of a plurality of end devices using firmware.

The embedded board is an embedded board based on the Cortex-M3 and ATMETA328 processors. It has a clock speed of 16MHz and 48MHz and is equipped with GPIO, ADC, and ASART, so it can connect / connect with various peripherals.

The end device may be an electric device (illumination, sensor, outlet, etc.) or a sensor device such as a dust sensor, a dust sensor, an ammonia sensor, a temperature sensor, a ventilator, a heater, A temperature / humidity sensor, an IR flame detection center, a GL5537 CDS illuminance sensor, and the like.

The end device may be connected to the end node unit 110 via a wired / wireless communication interface.

And may be GPIO (Digital Input, Digital Output), DAC (Analog Output), ADC (Analog Input), I2C, RS232, SPI PWM, Wifi, Bluetooth and the like when the communication interface is wired.

If the communication interface is wireless, it may be any one of IRDA, Zigbee, WiFi, Bluetooth, Z-wave, SUN, Insteon, BLE, UWB and LoRaWAN (Long Range Wide Area Network).

In some cases, some of the communication interfaces may require components that are used only in the interface. In such a case, the components may be mounted on the module without being mounted on the module, And a PCB board (or a circuit board).

The gateway unit 120 includes a communication module 121, a communication interface unit 122, and a communication interface changing unit 123. The communication module 121 communicates with the end node unit 110 through a multiple communication method.

More specifically, the gateway unit 120 may include a plurality of communication modules 121-1 to 121-n, a communication interface unit 122, and a communication interface changing unit 123. [

The plurality of communication modules (121-1 to 121-n) (Internet of Everything) that includes at least one of IRDA, Zigbee, WiFi, Bluetooth, Z-wave, SUN, Insteon, BLE, UWB and LoRAWAN (Long Range Wide Area Network) And communicates with the end node unit 110.

The plurality of communication modules 121-1 to 121-n may be connected to a session of the network server 140 based on TCP / IP or may be connected to the network server 140 via a long distance low power long distance communication (LPWA) .

For example, the plurality of communication modules 121-1 to 121-n are Raspberry Pi-based gateways and are configured in the form of a multi gateway capable of being a BLE module in a conventional LoRA exclusive gateway, The data transmitted through the end node unit 110 can be communicated with each other using a data transmission code.

The communication interface unit 122 provides any one of the multiple communication methods to the end node unit 110 based on the event signal of the remote control unit 130.

The communication interface unit 122 may provide any one of multiple communication methods to each of a plurality of end devices connected to the end node unit 110.

The communication interface changing unit 123 determines communication performance between the end node unit 110 and the gateway unit 120 by using a communication packet with the end node unit 110. If the communication performance is less than the preset value, Change the communication interface. The communication packet may vary depending on the state and type of the end device in the end node unit 110. [ In addition, the preset values may be set for each communication interface connected to each end device.

The communication interface changing unit 123 changes RSSI, packet delay (IPTD), packet delay variation (IPDV), and the like between the end device of the end node unit 110 and the communication module 121 of the gateway unit 120, , The packet loss rate (IPLR), and the packet error rate (IPER).

On the other hand, the communication interface changing unit 123 may change the communication interface in a random manner based on the setting change signal of the remote control unit 130, or may change the priority according to the priority of the communication interface set by the user.

The remote control unit 130 is a remote controller for setting and changing the communication method between the gateway unit 120 and the end node unit 110. The remote control unit 130 determines whether communication performance between the end node unit 110 and the gateway unit 120 Thereafter, when the communication performance is equal to or less than the predetermined value, control is performed to change the communication method.

For example, the remote control unit 130 is a wireless communication device that is guaranteed to be portable and mobility. The remote control unit 130 may be a personal communication system (PCS), a global system for mobile communications (GSM) Cellular, PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication) -2000, CDMA (Code Division Multiple Access) -2000, W-Code Division Multiple Access (W-CDMA) Based wireless communication device such as a wireless broadband Internet terminal, a smartphone, a smartpad, a tablet PC, and the like.

The remote control unit 130 may include display means for displaying information on setting and changing the communication mode between the gateway unit 120 and the end node unit 110. [

The network server 140 is a cloud server and constructs information on the statuses of the end node unit 110 and the gateway unit 120 and the information transmitted between the end node unit 110 and the gateway unit 120 And provides status information and transmission / reception data to the remote control unit 130.

The network server 140 communicates with the gateway 120 through a TCP / IP (Network Control Protocol / Internet Protocol) network.

In addition, the network server 140 can provide data that can be externally monitored and controlled, such as mobile and PC.

For reference, the network server 140 includes middleware such as jode.js, mySQL, and MQTT, and may be a server built using Mobius and < Cube.

Accordingly, when the data transmission system 100 using the remote control device capable of controlling the multi-type communication module according to the embodiment of the present invention is used, the problem that the conventional data transmission system can not be used, which is a problem of the conventional IoT system, It is possible to solve the problem that the IoT system can not be used in the absence of the battery because the battery consumption of the sensor or the device (terminal) is heavy.

In addition, when the data transmission system 100 using the remote control device capable of controlling the multi-type communication module according to the embodiment of the present invention is used, it is not necessary to be dependent on the communication method and can not be dependent on the communication company, The communication cost due to the use can be reduced.

In addition, it can include a home network, which has an advantage in that it can widely utilize the object Internet in each industrial field.

For example, spat farms, pig farms, and poultry management systems can be deployed to reduce the cost of communication, which is burdensome to use.

FIG. 3 is a diagram illustrating an exemplary computing environment in which one or more embodiments disclosed herein may be implemented. An example of a system 1000 that includes a computing device 1100 configured to implement one or more of the above- / RTI >

For example, the computing device 1100 may be a personal computer, a server computer, a handheld or laptop device, a mobile device (mobile phone, PDA, media player, etc.), a multiprocessor system, a consumer electronics device, A distributed computing environment including any of the above-described systems or devices, and the like.

The computing device 1100 may include at least one processing unit 1110 and memory 1120. [ The processing unit 1110 may include, for example, a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit (ASIC), a field programmable gate array And may have a plurality of cores. The memory 1120 can be a volatile memory (e.g., RAM, etc.), a non-volatile memory (e.g., ROM, flash memory, etc.) or a combination thereof. In addition, the computing device 1100 may include additional storage 1130. Storage 1130 includes, but is not limited to, magnetic storage, optical storage, and the like. The storage 1130 may store computer readable instructions for implementing one or more embodiments as disclosed herein, and other computer readable instructions for implementing an operating system, application programs, and the like. The computer readable instructions stored in storage 1130 may be loaded into memory 1120 for execution by processing unit 1110.

In addition, computing device 1100 may include input device (s) 1140 and output device (s) 1150. Here, input device (s) 1140 may include, for example, a keyboard, a mouse, a pen, a voice input device, a touch input device, an infrared camera, a video input device, or any other input device. Also, output device (s) 1150 can include, for example, one or more displays, speakers, printers, or any other output device. In addition, computing device 1100 may use an input device or output device included in another computing device as input device (s) 1140 or output device (s) 1150. [

The computing device 1100 may also include communication connection (s) 1160 that allow the computing device 1100 to communicate with other devices (e.g., computing device 1300). (S) 1160 may include a modem, a network interface card (NIC), an integrated network interface, a radio frequency transmitter / receiver, an infrared port, a USB connection or other Interface. Also, the communication connection (s) 1160 may include a wired connection or a wireless connection.

Each component of the computing device 1100 described above may be connected by various interconnects (e.g., peripheral component interconnect (PCI), USB, firmware (IEEE 1394), optical bus architecture, etc.) And may be interconnected by the network 1200.

As used herein, terms such as "component,""module,""system,""interface," and the like generally refer to a computer-related entity that is hardware, a combination of hardware and software, software, or software in execution. For example, an element may be, but is not limited to being, a processor, an object, an executable, an executable thread, a program and / or a computer running on a processor. For example, both the application running on the controller and the controller may be components. One or more components may reside within a process and / or thread of execution, and the components may be localized on one computer and distributed among two or more computers.

Generally, in a battery such as a lithium ion battery or a lithium polymer battery, when the charge seed rate is increased so that the charging time is shortened, lithium ions are precipitated on the surface of the negative electrode active material (lithium plating) Is known to be shortened. Therefore, in the present invention, a configuration / method capable of suppressing the battery deterioration phenomenon and the life shortening phenomenon while reducing the charging time (rapid charging) will be described.

4 is a block diagram illustrating a configuration for fast / slow charging of a data transmission system using a remote controller capable of controlling a multi-type communication module according to various embodiments of the present invention.

4, a data transmission system 100 using a remote control device capable of controlling a multi-type communication module according to various embodiments of the present invention includes a thermoelectric element 125, a current regulator 126, A charge control unit 128, and a storage unit (memory)

The thermoelectric element 125 is installed on the surface of the battery 124 and serves to increase or decrease the temperature of the battery 124 according to the ambient temperature according to the control of the charge controller 128. Since one surface of the thermoelectric element 125 is a heat generating surface and the other surface of the thermoelectric element 125 can be a heat absorbing surface, the thermoelectric element 125 can operate simply as a heating element or as a heat absorbing element can do.

The current regulating unit 126 is provided between the DC-DC converter 123 and the battery 124 and controls the seed-rate supplied to the battery 124 under the control of the charge control unit 128 . The current regulator 126 may be implemented by an IGBT (insulated gate bipolar mode transistor) controlled by a PWM (pulse width modulation), a field effect transistor (FET), a bipolar transistor, or the like.

The charging mode selection unit 127 serves to select a rapid charging mode (for example, a 30-minute rapid charging mode) or a continuous charging mode (for example, a 3-hour sustained charging mode) by the user. The charging mode selection unit 127 basically selects the slow charging mode and transfers it to the control unit 128, for example, although it is not limited thereto. In addition, the charging mode selection unit 127 may be implemented by a key or a button structure.

The charge control unit 128 loads the temperature and / or the rate of the battery 124 per charge time and / or charge capacity corresponding to the charge mode selected by the user, Controls the temperature and / or the C-rate and charges the battery 124. Of course, the charge controller 128 controls the thermoelectric element 125 and the current controller 126 directly.

The storage unit 129 stores the operation algorithm (program or software) of the charge control unit 128 and the temperature and / or the rate of the charge of the battery 124 per charge time and / or charge capacity according to the charge mode do. The temperature and / or the seed-rate profile of this battery 124 is stored in advance in accordance with a number of experiments or simulations in the manufacture of the battery 124.

In this way, when the rapid charge mode is selected by the user, the charge control unit 128 controls the temperature of the battery 124 to gradually decrease from the highest value to the lowest value, The battery 125 and the current regulator 126 are directly controlled, thereby shortening the charging time and minimizing the deterioration of the battery 124 or shortening the service life.

For example, although not limiting, the charge controller 128 may control the current regulator 126 to gradually decrease the seed-rate in a step-like fashion, especially at points where the levels are different and / At least one charge dwell time may be provided to further shorten the charge time. That is, the internal resistance of the battery 124 is reduced and stabilized when the charging current is supplied discontinuously and the amount of charging current is reduced, rather than continuously supplying the charging current, so that the charging speed is faster and the deterioration phenomenon is smaller .

For example, although not limiting, the charge controller 128 controls the current regulator 126 to gradually decrease the seed-rate from approximately 5 C to 1 C in a step-like fashion, wherein the temperature is controlled by controlling the thermoelectric element 125 It can be gradually reduced from 50 to 10. Here, these numerical values are only examples for understanding the present invention, and the present invention is not limited to these numerical ranges.

Alternatively, although not limiting, the charge controller 128 may use the thermoelectric element 125 to maintain the temperature of the battery 124 at approximately 20 to 30 when the slow charge mode is selected by the user, The current regulator 126 may be controlled to maintain the seed-rate at approximately 0.1C to 0.5C. That is, although the charging time is prolonged in this temperature range and the seed-rate, the deterioration rate of the battery and the shortening of the lifetime are minimized.

In addition, although not shown in the drawing, a system according to an embodiment of the present invention includes a temperature sensor for sensing the temperature of the battery 124, and a voltage sensor and / or a current sensor for estimating the capacity of the battery 124 It is natural.

5 is a flowchart illustrating a fast / slow charging sequence during operation of a data transmission system using a remote controller capable of controlling a multi-type communication module according to various embodiments of the present invention.

5, it is determined whether the charging method is a rapid charging mode (S1), a rapid charging temperature and a cir-rate file loading step (S2), a step S3 for determining whether the charging mode is a full charging mode, A temperature and a seed-rate profile loading step S4, a step S5 of confirming that the full charge is completed, and a charge stop step S6.

In step S1 to determine whether the rapid charge mode is selected, the charge controller 128 determines whether the rapid charge mode has been selected by the user through the charge mode selector 127. [ If the rapid charge mode is selected, step S2 is performed, otherwise step S3 is performed.

In the rapid charge temperature and seed-rate profile loading step S2, the charge control unit 128 loads the rapid charge temperature and the seed-rate profile per charge time and / or the charge amount stored in the storage unit 129. [

For example, but not limited to, the charge controller 128 may control the thermoelectric element 125 to maintain the temperature of the battery 124 at approximately 30 to 50 regardless of the ambient temperature at the beginning of the charge, As the elapsed or charged capacity increases, the thermoelectric element 125 is controlled to load a profile that maintains the temperature of the battery 124 at about 20 to 30. Further, the charge control unit 128 controls the current regulating unit 126 so that a current is supplied to the battery 124 in the form of a pulse having a charge rate of about 3 C to 5 C and a charge stop time, And controls the current regulating unit 126 as the charging time elapses or the charging capacity increases so that the current is supplied to the battery (not shown) in the form of a pulse having a charge rate of 1 C to 2 C and a charge stop time, Lt; RTI ID = 0.0 > 124 < / RTI >

On the other hand, in step S3 in which it is determined whether the mode is the slow charge mode, the charge control unit 128 determines whether the user has selected the slow charge mode through the charge mode selection unit 127. [ When the slow charge mode is selected, step S4 is performed.

The charging control unit 128 loads the slowly charging temperature and the seed-rate profile per charging time and / or the charging capacity stored in the storage unit 129 in the slow charging temperature and seed-rate profile loading step S4.

For example, although not limiting, the charge controller 128 controls the thermoelectric element 125 to maintain the temperature of the battery 124 at about 20 to 30, regardless of the ambient temperature, To load a charge profile that maintains the seed-rate at approximately 0.1C to 0.5C.

In step S5 of confirming whether the battery is fully charged, the charge control unit 128 determines whether or not the present charge amount of the battery 124 is in the full charge state. The determination as to whether or not the battery 124 is fully charged can be performed by converting the voltage of the battery 124 into an SOC (State of Charge) or by measuring the total amount of charge injected into the battery 124. The method for determining whether or not the battery 124 is fully charged is well known to those skilled in the art, so a description thereof will be omitted.

If it is confirmed that the battery 124 is fully charged, step S6 is performed, and otherwise, the process returns to step S1.

In the charging stop step S6, the charging control unit 128 controls the current regulating unit 126 to block the current to the battery 124 so that the charging of the battery 124 is completed.

As described above, in the embodiment of the present invention, by supplying the pulse charging current relatively higher than the temperature of the battery 124 relatively high in the region where the capacity of the battery 124 is low, there is no precipitation of lithium ions, So that the battery 124 can be charged quickly. If the battery 124 is charged with a relatively high pulse charge current under the condition that the temperature of the battery 124 is approximately 0 or less, the above-described lithium ion precipitation and electrolytic solution decomposition may occur, The life span is shortened. However, as in the present invention, when the temperature of the battery is increased and the battery is charged at a high rate during the initial charging of the battery regardless of the ambient temperature, and the battery temperature is lowered and the battery is charged at the time of terminal charging at the end of the battery, It is possible to reduce deterioration and life shortening.

In addition, on the surface of the gateway unit 120, an anti-fouling coating layer coated with the anti-fouling coating composition is formed so as to effectively prevent and remove the adhesion of contaminants. The antifouling coating composition contains sodium hydroxide and alkyl betaine, and the total content of sodium hydroxide and alkyl betaine is 1 to 10 wt% with respect to the total aqueous solution.

The sodium hydroxide and alkyl betaine are preferably used in an amount of 1 to 10% by weight based on the total weight of the composition. When the content is less than 1% by weight, the coating properties of the base material deteriorate. When the content exceeds 10% by weight, Precipitation tends to occur.

On the other hand, as a method of applying the present anti-contamination coating composition onto the gateway unit 120, it is preferable to apply the coating composition by a spray method. The thickness of the final coated film on the substrate is preferably 500 to 2000 angstroms, and more preferably 1000 to 2000 angstroms. When the thickness of the coating film is less than 500 ANGSTROM, there is a problem that it deteriorates in the case of a high-temperature heat treatment. When the thickness is more than 2000 ANGSTROM, crystallization of a coated surface tends to occur.

In addition, a sound-absorbing layer may be applied to the inside of the network server 140.

Needle punch felts may be used as felt to constitute the sound-absorbing layer.

Examples of the fibers constituting the sound-absorbing layer made of needle punch felt include polyester fibers, nylon fibers, polypropylene fibers, acrylic fibers and natural fibers.

The thickness of the sound-absorbing layer is preferably 0.5 to 16 mm. If the thickness of the sound-absorbing layer is less than 0.5 mm, a sufficient sound-absorbing effect can not be obtained. If the thickness of the sound-absorbing layer exceeds 16 mm, the height of the network server 140 is reduced.

The unit weight of the sound-absorbing layer is preferably 5 to 500 g / m ² . If it is less than 5 g / m ² , a sufficient sound absorption effect can not be obtained, and if it exceeds 500 g / m ² , the light weight of the network server 140 can not be secured.

The fineness of the fibers constituting the sound-absorbing layer is preferably in the range of 0.1 to 20 decitex. If it is less than 0.1 decitex, absorption of low-frequency noise is difficult and cushioning property is lowered, which is not preferable. If it exceeds 20 decitex, it is not preferable to absorb high frequency noise. Among these, the fineness of the fibers constituting the sound-absorbing layer is more preferably in the range of 0.1 to 15 decitex.

Since the sound-absorbing layer is provided inside the network server, noise during operation of the network server 140 can be reduced.

In addition, since the end node unit 110 is coated with a perfume material having a sterilizing function, the end node unit 110 effectively sterilizes the end node unit 110 and the like.

In addition, the end node unit 110 may be coated with a perfume material having a function of treating a respiratory disease, etc., thereby improving the user's fatigue and health.

The functional oil may be mixed with 95 to 97% by weight of a perfume, 3 to 5% by weight of a functional oil, 50% by weight of Helichrysum oil, , And 50% by weight of Patchouli oil.

Here, the functional oil is preferably mixed with 3 to 5% by weight based on the perfume. If the mixing ratio of the functional oil is less than 3% by weight, the effect is insignificant. If the mixing ratio of the functional oil exceeds 3 to 5% by weight, the function is not greatly improved, but the manufacturing cost is greatly increased.

Among the functional oils, helichrysum oil is one of the main chemical elements such as nerol, geraniol, linalol, and has a good effect on antibacterial, antibacterial, antiseptic, antiallergic and anti-inflammatory.

 Patchouli oil oil is mainly composed of patchouliene, eugenol, carvone, etc. It has excellent effect on sterilization, preservation, anti-inflammation and skin inflammation treatment.

As the functional oil is coated on the end node unit 110, it contributes to the user's fatigue recovery and health promotion.

The present invention is not limited to the above-described embodiment, but may be embodied in the following claims. The present invention is not limited to the above- It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

100: Data transmission system 110: End node unit
120: gateway unit 121: communication module
122: communication interface unit 123: communication interface changing unit
130: remote control unit 140: network server

Claims (5)

An end node connected to end devices respectively provided in sensor terminals of a plurality of IoT devices for sensing environmental information in a specific space;
A gateway unit communicating with the end node unit through a multiple communication scheme;
A remote control unit for setting and changing a communication mode between the gateway unit and the end node unit and determining a communication capability between the end node unit and the gateway unit, part; And
And a network server for constructing the state information of the end node unit and the gateway unit in a database and providing the state information to the remote control unit.
The method according to claim 1,
The end node
Type communication module including an embedded board for controlling each of the plurality of end devices using firmware.
The method according to claim 1,
The gateway unit
A plurality of communications that communicate with the end node unit using the multiple communication method including at least one of IRDA, Zigbee, WiFi, Bluetooth, Z-wave, SUN, Insteon, BLE, UWB, LoRAWAN module;
A communication interface for providing any one of the multiple communication methods to the end node unit based on an event signal of the remote control unit; And
And a communication interface changing unit for changing the communication interface when the communication performance is equal to or less than a predetermined value after determining communication performance between the end node unit and the gateway unit, system.
The method of claim 3,
The communication interface unit
Type communication module that provides any one of the multiple communication methods to each of the plurality of end devices connected to the end node unit.
5. The method of claim 4,
The communication interface changing unit
Based on the RSSI, the packet delay (IPTD), the packet delay variation (IPDV), the packet loss rate (IPLR), and the packet error rate (IPER) between the end device of the end node unit and the communication module of the gateway unit. And a data transmission system using a remote control device capable of controlling a multi-species communication module for determining the communication performance of the multi-type communication module.

Images