Apparatus and method of network assessment

Abstract

The present invention discloses a communication environment evaluation device and a method thereof, which can transmit data more efficiently and stably when transmitting data through a Smart Power Grid by evaluating a network communication environment to selectively transmit data via WAN communication when transmitting data between towers, and transmitting data via WAN communication from a selected tower based on the evaluated network communication environment.

Description

Technology Field

[0001] The present invention relates to a communication environment evaluation system and method for data transmission via WAN communication, and more specifically, to an apparatus and method for evaluating communication for transmitting data for stable energy transmission in a Smart Power Grid. Background Technology

[0003] The contents described below are provided solely for the purpose of providing background information related to embodiments of the present invention, and the contents described do not automatically constitute prior art.

[0004] In the production and management of electricity, there are methods to increase the power supply by expanding power generation facilities, and methods to efficiently manage the electricity supplied to buildings even without expanding power generation facilities or increasing the power supply. The most desirable future power supply management system is an intelligent power management system called a smart grid, which efficiently manages the supplied electricity, stores and manages surplus electricity and small-scale distributed power generated within the building, and supplies the surplus electricity and small-scale distributed power produced by the building itself to neighboring buildings or sells it to the grid.

[0005] In the past, energy-saving technologies were developed and commercialized in the form of power-saving modes for individual home appliances; currently, however, functions have been developed and commercialized that operate in power-saving mode during periods of high electricity prices and operate normally during periods of low prices.

[0006] However, this type of passive energy-saving technology is difficult to respond to sudden increases in demand because it is difficult to transmit real-time price information, and it is difficult to expect significant energy-saving effects. Therefore, in the future, if the functions provided by smart appliances (including on / off) are directly controlled from smart terminals within the scope permitted by the user (active energy control technology), it will be possible to maximize the response to real-time peak demand, prevent situations such as rolling blackouts or blackouts (large-scale total power outages), and realize energy savings.

[0007] The smart grid is an intelligent power production and distribution system that aims to optimize energy efficiency by digitizing the power grid. It is a technology field that is receiving global attention due to recent societal trends and is being promoted as a policy initiative by various countries.

[0008] Demand Response (DR) refers to a method of reducing consumer energy consumption or providing incentives when wholesale electricity prices are high or grid reliability is low, and it is gaining attention as the most important application field in the expansion of smart grid technology.

[0009] In addition, technological development for power management systems is being pursued based on technologies for the production, storage, consumption, and management of electrical energy through the bidirectional operation of power and information by integrating power technology with intelligent technologies of ICT (Information and Communications Technologies).

[0010] Therefore, as a more efficient solution, it is necessary to integrate smart grid technology, a bidirectional power energy technology, with remote power management technology.

[0011] Meanwhile, the aforementioned prior art refers to technical information that the inventor possessed or acquired during the process of deriving the present invention, and it cannot necessarily be considered publicly known technology disclosed to the general public prior to the filing of the present invention. The problem to be solved

[0013] An embodiment of the present invention enables stable energy transmission through smart grid technology.

[0014] In addition, an embodiment of the present invention enables data transmission and reception between towers through a minimum WAN communication module.

[0015] In addition, an embodiment of the present invention selects a tower that transmits and receives data to and from a WAN communication module among a plurality of communication towers where communication takes place, and activates the WAN communication module only in the selected tower so that communication between towers can be achieved at minimal cost.

[0016] The objectives of the present invention are not limited to the problems mentioned above, and other objectives and advantages of the present invention not mentioned may be understood from the following description and will be more clearly understood from the embodiments of the present invention. Furthermore, it will be understood that the objectives and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims. means of solving the problem

[0018] A method for evaluating a communication environment for data transmission via WAN communication according to an embodiment of the present invention may be performed by detecting data transmitted from a first communication tower to a second communication tower of a plurality of communication towers connected to the main tower via relay communication based on FC (Fountain Code), and evaluating the network communication performance of the plurality of communication towers and the main tower.

[0019] At this time, network communication performance can be performed by comparing the network communication performance result value (Q) with a preset communication service quality (quality-of-service) threshold (Q*), and activating the WAN (Wide Area Network) module of the first tower that has a result value lower than the threshold.

[0020] According to an embodiment of the present invention, the WAN module of the first tower located far from the main tower among the plurality of communication towers can be activated.

[0021] According to an embodiment of the present invention, in the process of detecting data, a transmission probability (P) for any link transmitting data from the first communication tower to the second communication tower may be based, and network communication performance may activate the WAN module of the first tower when the transmission probability is greater than a predetermined condition probability (P*).

[0022] According to an embodiment of the present invention, a delay condition (D) can be based on any link transmitting data from the first communication tower to the second communication tower during the process of detecting data. At this time, if the network communication performance is greater than the delay condition and the preset delay condition (D*), the WAN module of the first tower can be activated.

[0023] According to an embodiment of the present invention, network communication performance can be evaluated based on at least one measurement value among acceleration, magnetic field, strain, and temperature.

[0024] A communication environment evaluation device for data transmission via WAN communication according to an embodiment of the present invention may include a main tower and a plurality of communication towers connected to the main tower by relay communication based on FC (Fountain Code), a sensing unit that detects data transmitted to the plurality of communication towers and the main tower including the main tower among the plurality of communication towers, and an evaluation unit that evaluates the network communication performance of the plurality of communication towers and the main tower based on the data measurement value detected by the sensing unit.

[0025] At this time, the evaluation unit compares the network communication performance result value (Q) with the pre-set communication service quality-of-service threshold (Q*), and based on the result of the comparison, the WAN (Wide Area Network) module of the first tower that has a result value lower than the threshold can be activated.

[0026] A communication environment evaluation device for data transmission via WAN communication according to an embodiment of the present invention includes at least one processor and a memory operably connected to the processor and storing at least one code executed by the processor. When the memory is executed through the processor, the processor may store a code for evaluating the network communication performance of the plurality of communication towers and the main tower, wherein the processor includes a plurality of communication towers and a main tower connected via communication based on FC (Fountain Code) and detects data transmitted to the plurality of communication towers and the main tower, and compares the network communication performance result value (Q) with a preset quality-of-service threshold value (Q*) based on the detected data measurement value, and activates the WAN (Wide Area Network) module of the first tower whose result value is lower than the threshold value.

[0027] Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention. Effects of the invention

[0029] Stable energy transmission in a smart power grid can be achieved through the communication environment evaluation system and method according to an embodiment of the present invention. In particular, the communication performance of a wireless network for real-time monitoring of a communication tower to which power is transmitted can be evaluated.

[0030] In addition, based on the wireless network communication performance being evaluated, the activation level of the WAN module of the communication tower transmitting data can be minimized to minimize the cost incurred during data transmission.

[0031] In addition, an algorithm for evaluating wireless network communication performance is proposed to evaluate FC (Fountain Code)-based power transmission probability and power transmission delay, thereby enabling the evaluation of the quality of service for wireless network communication of a communication tower.

[0032] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description below. Brief explanation of the drawing

[0034] FIG. 1 is a schematic diagram illustrating a network communication environment according to an embodiment of the present invention. FIG. 2 is a flowchart for evaluating a network communication environment of a network communication environment according to an embodiment of the present invention. FIG. 3 is a diagram illustrating an algorithm for transmitting coded data packets without delay in a network communication environment evaluation device according to an embodiment of the present invention. FIG. 4 is a diagram illustrating an algorithm for determining the activation time of a WAN module for evaluating a network communication environment according to an embodiment of the present invention. FIG. 5 is a diagram illustrating the configuration of a network communication environment evaluation device according to an embodiment of the present invention. FIGS. 6 and 7 are drawings illustrating examples of communication towers that activate a WAN module based on delay conditions and quality of service for transmitting data according to embodiments of the present invention. FIG. 8 is a diagram illustrating the degree to which the performance of an algorithm for evaluating communication performance based on a change in the number of communication towers according to an embodiment of the present invention deteriorates. FIG. 9 is a diagram illustrating the performance change of an activated WAN module based on the service quality of transmitting data according to an embodiment of the present invention. FIG. 10 is a diagram illustrating whether delay conditions between communication towers are satisfied based on a change in the number of communication towers according to an embodiment of the present invention. Specific details for implementing the invention

[0035] The present invention will be described in more detail below with reference to the drawings. The present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the following embodiments, parts not directly related to the description are omitted to clearly explain the present invention; however, this does not mean that such omitted components are unnecessary when implementing a device or system to which the concept of the present invention is applied. Furthermore, the same reference numerals are used for identical or similar components throughout the specification.

[0036] In the following description, terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. Additionally, in the following description, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0037] In the following description, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0038] The present invention will be described in detail below with reference to the drawings.

[0039] FIG. 1 is a schematic diagram illustrating a network communication environment according to an embodiment of the present invention.

[0040] Referring to FIG. 1, a network communication environment (10) according to an embodiment of the present invention may be configured to include a plurality of communication towers (100), a main tower (200) that receives power from the communication towers (100), and a transmission path (L) that connects each tower to transmit power.

[0041] Each communication tower (100) may be a transmission tower capable of supplying energy (power), and the main tower (200) may be a substation where energy transmitted from the communication tower (100) is collected.

[0042] Each of these communication towers (100) and main tower (200) is connected by a transmission line, and the communication tower (100) may include a plurality of sensors for receiving transmitted power.

[0043] Specifically, the communication tower (100) may include a sensor that receives data regarding acceleration, magnetic field, deformation of the transmission line, and temperature, including information about the energy (power) being transmitted.

[0044] Among the sensors of the communication tower (100), each sensor other than the temperature measuring sensor can measure twice in a sampling instance. The data is measured up to 4 bytes of floating-point data, and each sensor can generate 51 kbit of unprocessed data per second at a sampling rate of 850 Hz. The generated data can be transmitted to any communication tower and to other communication towers at a speed of about 102 kbps (kilobytes per second), and the data transmitted to other communication towers can be about 1 / 4 of the data generated in the communication tower.

[0045] Additionally, each communication tower may include at least one communication relay (135) capable of communicating with sensors of adjacent towers using a short-range (100m or less) communication protocol such as Zigbee. The relay (135) may collect data received from sensors of any communication tower (100) and transmit the collected data to a relay (135) of a different second communication tower (100B) adjacent to the communication tower, or transmit it directly to a main tower (substation) (200) using a long-range (100m or more) communication protocol such as long-range Wi-Fi. That is, the relay (135) of the communication tower (100) acts as a communication hub that collects data from sensors and transmits the collected data to a relay (135) of a different communication tower (100) or to the main tower (200).

[0046] Meanwhile, when data is transmitted from any communication tower (100) to another communication tower (100), the smart grid must digitize the power grid to optimize energy efficiency and ensure that data transmission is performed without delay. Referring to the drawings below, we will examine in detail the network communication environment method and device for performing data transmission without delay through smart grid technology between towers.

[0047] FIG. 2 is a flowchart for evaluating a network communication environment of a network communication environment according to an embodiment of the present invention, FIG. 3 is a diagram illustrating, in time series, an algorithm for transmitting coded data packets without delay in a network communication environment evaluation device according to an embodiment of the present invention, FIG. 4 is a diagram illustrating an algorithm for determining the activation time of a WAN module for evaluating a network communication environment according to an embodiment of the present invention, and FIG. 5 is a diagram illustrating the configuration of a network communication environment evaluation device according to an embodiment of the present invention.

[0048] Before describing the drawings, the towers transmitting data in the embodiment of the present invention will be described as a first communication tower and a second communication tower, and the first and second communication towers (100B) will be described as transmission towers, but the first communication tower may be a transmission tower and the second communication tower may be a substation.

[0049] Referring to the drawing, the network communication environment evaluation is based on the Fountain Code (FC) when data is transmitted from any first communication tower (100A) among multiple communication towers to a second communication tower (100B), and the data transmitted from the first communication tower (100A) to the second communication tower (100B) can be received through the sensor unit (130) of each communication tower (step S120).

[0050] At this time, in order to transmit data from the first communication tower (100A) to the second communication tower (100B), it can be based on the transmission probability (P) for any link.

[0051] When transmitting data to the first communication tower (i) (100A) and the second communication tower (j) (100B), Mij' coded data packets (βij) set to any link (i, j) can be transmitted. At this time, the second communication tower (100B) can base the probability of receiving at least M packets transmitted from the first communication tower (100A) on the Fountain Code (FC).

[0052] That is, the probability (P) of receiving at least M packets transmitted from the first communication tower (100A) at the second communication tower (100B) can be defined by the following [Equation 1].

[0054] [Mathematical Formula 1]

[0055]

[0057] Here, Mij' is a discrete variable that takes an integer value, but as Mij' increases, the probability of receiving at least M packets based on FC increases, so as the number of packets transmitted from the first communication tower (100A) increases, the number of packets received from the second communication tower (100B) can increase.

[0058] Meanwhile, an increase in Mij' means that the time taken to transmit packets from the first communication tower (100A) to the second communication tower (100B) increases. Therefore, a link ( A minimum Mij' for ) must be defined, and a transmission probability (P) can be determined based on the defined Mij'. In this case, if the transmission probability (P) in which packet transmission occurs without delay is greater than a predetermined condition probability (P*), it can be said that packet transmission is performed without delay.

[0059] At this time, the predetermined conditional probability (P*) can be defined by the following [Equation 2].

[0061] [Mathematical Formula 2]

[0062]

[0064] The algorithm for determining Mij' based on [Equation 2] is based on the branch-and-bound method as illustrated in FIG. 3, and at this time, is the previous function value of Pij, and first, ε is the maximum allowable error, and can be defined as a ceiling function. In addition, to determine Mij', the algorithm's It can be entered as =0.

[0065] After determining Mij', in order to calculate the delay that occurs when transmitting data from the first communication tower (100A) to the second communication tower (100B), first, the time that the data packet waits at the first communication tower (100A) until the data packet generated at the first communication tower (100A) is transmitted to the second communication tower (100B) can be defined. Specifically, the data packet can be transmitted to the second communication tower (100B) when TDMA (time division multiple access) starts, and the waiting time ([0,Tf]) of the data packet can be defined based on the average waiting time (T / f2), and can be defined as follows [Equation 3].

[0067] [Mathematical Formula 3]

[0068]

[0070] Here, rij≥min can be considered the data transmission rate of the data packet link (i, j). In [Equation 3], T / f2, (Mij'-1)Tf and represents the average waiting time, transmission time, and average transmission time of the last packet of data packet Mij'-1.

[0071] Meanwhile, in an embodiment of the present invention, the path through which data is transmitted can be defined as pi, and the path pi can be defined by the following [Equation 4].

[0073] [Mathematical Formula 4]

[0074]

[0075] Data packets transmitted from a first communication tower (i) (100A), which is an arbitrary link (i, j) on a defined path pi to a second communication tower (j) (100B) may be based on a delay condition (D). This delay condition (D) can be defined by the following [Equation 5].

[0077] [Mathematical Formula 5]

[0078]

[0080] At this time, data transmission can be executed if the determined delay condition (D) is smaller than the preset delay condition (D*). The preset delay condition (D*) may vary depending on the number of towers, the distance between towers, the amount of data packets transmitted from the towers, etc. This preset delay condition (D*) can serve as a criterion for selecting another path when data transmission fails through a selected path among multiple paths during data transmission.

[0081] In particular, by transmitting data from the first communication tower (100A) to two or more different paths selected from among several paths, the second communication tower (100B) can receive not only a larger number of data but also accurate data. At this time, the entire path (R) capable of transmitting data must be set larger than the path (R*) through which data is transmitted, which is separated from the entire path (R).

[0082] When transmitting data from the first communication tower (100A) to the second communication tower (100B) under these conditions, the network communication performance connecting the first communication tower (100A) to the second communication tower (100B) can be evaluated through the evaluation unit (140) (step S140).

[0083] Specifically, the evaluation unit (140) evaluates the case where the result value (Q) of network communication performance is lower than the threshold value (Q*) of the pre-set communication service quality, and activates the WAN (Wide Area Network) module (150_see FIG. 1) of the first tower with the lower result value so that data can be transmitted in a state where network performance is improved (steps S144, S146).

[0084] Here, a WAN (Wide Area Network) refers to a network in which two or more LANs are connected over a wide area. That is, if the distance between the first communication tower (100A) and the second communication tower (100B) is sufficiently far and communication cannot be established via a non-WAN connection, the WAN module (150) is activated to establish a communication connection. Additionally, for the WAN module (150) to be activated, a threshold value and a result value must be compared in real-time or near-real-time. To this end, the activation time of the WAN module (150) can be selected by the PDFT algorithm.

[0085] At this time, the WAN is activated, and the transmission link between the first communication tower (100A) and the second communication tower (100B) may not be connected via a non-WAN connection. In this case, the WAN module (150) can be activated to directly transmit data from the first communication tower (100A) to the main tower (200) without relaying between the communication towers. That is, when the WAN is activated, data transmission to the main tower (200) can be achieved without a communication connection between the communication towers.

[0086] The condition under which the WAN module (150) is activated in this manner is as illustrated in the algorithm (PDFT algorithm) of FIG. 4

[0087] 1) The probability (P) of transmitting at least M packets transmitted from the first communication tower (100A) to the second communication tower (100B) without delay is greater than a predetermined conditional probability (P*) (Pij≥P*), and

[0088] 2) The delay condition (D) of a data packet transmitted from a first communication tower (i) (100A) on an arbitrary link (i, j) to a second communication tower (j) (100B) is smaller than a preset delay condition (D*) (D≤D*),

[0089] 3) When the total path (R) through which data can be transmitted is greater than the path (R*) through which data is transmitted (|Ri|≥R*), it can be assumed that the network communication performance result value (Q) is greater than the communication service quality threshold (Q*).

[0090] That is, when data transmitted from the first communication tower (100A) is transmitted to the second communication tower (100B) without delay or failure, it is determined that the quality of communication service is above a set threshold (Q*), so data transmission can be performed even in a non-WAN state without executing the WAN module.

[0091] However, if the network communication performance result value (Q) is smaller than the threshold value (Q*), it can be assumed that data transmission may not occur in a non-WAN state, so the WAN module (150) of the tower transmitting data can be activated.

[0092] However, since activating the WAN module (150) of each tower may increase costs, the network communication performance result (Q) can be compared based on a threshold value (Q*), and only the WAN module (150) of the tower with the smaller result (Q) can be selectively activated. Therefore, the increase in costs for activating the WAN module (150) can be minimized.

[0093] At this time, the tower in which the WAN module (150) is activated can be the first tower (T) located furthest from the main tower (200), which is a substation. That is, in order for data from the first tower (T) to be transmitted to the main tower (200) without loss, the WAN module (150) of the first tower (T) is activated. To this end, a WAN module (150) can be built into each tower.

[0094] Meanwhile, the network communication environment evaluation device (100) according to an embodiment of the present invention further includes a communication unit (120), a memory (160), and a processor (180), etc.

[0095] The communication unit (120) is configured to connect communication between different communication towers and between a communication tower and a main tower. The communication unit (120) can check whether data has been transmitted based on the network communication environment transmitted from each tower.

[0096] The memory (160) can store the time when the WAN module (150) is activated according to the FC-based data transmission conditions and data transmission environment, or store execution code for the processor (180) of the network communication environment evaluation device (100) to execute.

[0097] The processor (180) is a component that determines whether the executable code stored in the memory (160) operates. The processor (180) may request, search, receive, or utilize data controlling the executable code stored in the memory (160), and may execute at least one executable operation, which is a predicted operation or an operation that is determined to be desirable.

[0099] Meanwhile, it is possible to evaluate whether the previously presented PDFT algorithm is suitable as an algorithm for determining when to activate the WAN module (150).

[0100] To this end, referring to FIGS. 6 and 7, it is assumed that the number of communication towers (N) is 18, the data packet delay condition (D*) is 300ms, and the threshold value (Q*) of the quality-of-service of communication is 9999.995%. According to the proposed PDFT algorithm, it is shown that the WAN module (150) is activated in communication towers 1, 2, 3, 4, 5, 6, 14, and 16.

[0101] In contrast, according to the optimal-solution algorithm that evaluates the overall network communication environment, the WAN module (150) is shown to be activated in towers 1, 2, 3, 4, 5, 6, 14, and 17.

[0102] Referring again to FIG. 6, the towers are shown in which the WAN module (150) is activated according to different set delay conditions (D*) and threshold values ​​(Q*). Specifically, regardless of the delay condition (D*) and threshold value (Q*), the WAN modules of multiple towers located far from the main tower (200) are activated relative to the main tower (200). This is to minimize data loss by activating the WAN modules located far from the main tower (200) when transmitting data to the main tower (200).

[0103] In addition, referring to FIG. 8, it is shown that the time to calculate the activation time of the WAN module (150) increases according to the algorithm evaluating the entire network communication environment as the number of towers increases (e.g., 12 → 18), whereas according to the PDFT algorithm according to the embodiment of the present invention, the increase in the time to calculate the activation time of the WAN module (150) is not significant even when the number of towers increases.

[0104] Therefore, it may be determined that it is appropriate to determine the timing for activating the WAN module (150) through the PDFT algorithm.

[0105] Similarly, referring to FIG. 9 (a), when examining the performance change of the activated WAN module (150) based on the service quality of data transmission, it is shown that when the number of towers increases regardless of the algorithm, the number of towers in which the WAN module (150) is activated increases.

[0106] This can be determined as the WAN module (150) is activated to minimize data loss when data is transmitted to the main tower (200) as the number of towers increases.

[0107] In addition, as shown in FIG. 9 (b), the result value of the tower in which the WAN module (150) is activated by the PDFT algorithm according to an embodiment of the present invention and the algorithm (optimal-solution algorithm) that evaluates the entire network communication environment is similar regardless of changes in the preset delay condition (D*) and threshold (Q*).

[0108] That is, as illustrated in FIG. 8, even if the number of towers increases according to the PDFT algorithm according to the embodiment of the present invention, the increase in the calculation time for the activation of the WAN module (150) is not significant, so the selection of the PDFT algorithm according to the embodiment of the present invention as an algorithm for estimating the towers where the WAN module (150) is activated can improve efficiency in terms of cost and time compared to an algorithm that evaluates the entire network communication environment.

[0109] Meanwhile, the WAN module can be activated according to the set delay condition (D*) regardless of the increase in the number of towers. That is, as shown in FIG. 10, the set delay condition (D*) is 400, and it is shown that the data delay does not increase and remains constant even if the number of towers increases.

[0110] On the other hand, if the number of towers increases to 16 or more, data latency occurs, indicating that the amount of network traffic is increasing. In this case, the WAN module of each tower can be activated.

[0111] In this way, an algorithm for evaluating the network communication environment can be proposed to minimize the activation of the WAN module during data transmission between towers.

[0112] In particular, it monitors communication towers through which power is transmitted in real time, enabling stable energy transmission between towers at low cost via the smart power grid.

[0113] In addition, by evaluating network performance for data transmission, the activation level of the WAN module of the communication tower transmitting data can be minimized, thereby minimizing the cost incurred during data transmission.

[0114] In addition, an algorithm for evaluating wireless network communication performance is proposed to evaluate FC (Fountain Code)-based power transmission probability and power transmission delay, thereby enabling the evaluation of the quality of service for wireless network communication of a communication tower.

[0115] The embodiments according to the present invention described above may be implemented in the form of a computer program that can be executed through various components on a computer, and such a computer program may be recorded on a computer-readable medium. In this case, the medium may include a magnetic medium such as a hard disk, a floppy disk, and a magnetic tape, an optical recording medium such as a CD-ROM and a DVD, a magneto-optical medium such as a floptical disk, and a hardware device specifically configured to store and execute program instructions, such as a ROM, RAM, or flash memory.

[0116] Meanwhile, the computer program may be one specifically designed and configured for the present invention or one known and available to those skilled in the art of computer software. Examples of computer programs may include machine code, such as that generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc.

[0117] In the specification of the present invention (particularly in the claims), the use of the term "above" and similar descriptive terms may be in both singular and plural. Furthermore, where a range is described in the present invention, it is to include the invention to which individual values ​​belonging to the range are applied (unless otherwise stated), and is equivalent to describing each individual value constituting the range in the detailed description of the invention.

[0118] Unless explicitly stated otherwise regarding the steps constituting the method according to the present invention, the steps may be performed in a suitable order. The present invention is not necessarily limited by the order in which the steps are described. Furthermore, the steps included in the methods according to the present invention may be performed through a processor or modules for performing the function of the corresponding steps. The use of all examples or exemplary terms (e.g., etc.) in the present invention is merely for the purpose of describing the present invention in detail, and the scope of the present invention is not limited by such examples or exemplary terms unless limited by the claims. Furthermore, those skilled in the art will understand that various modifications, combinations, and changes may be made according to design conditions and factors within the scope of the claims or equivalents to which they are added.

[0119] Accordingly, the scope of the present invention should not be limited to the described embodiments, and all scopes equivalent to or equivalently modified from the claims set forth below, as well as the claims set forth below, shall be considered to fall within the scope of the concept of the present invention.

Claims

Claim 1 A method for evaluating a communication environment for data transmission via WAN communication comprises: a step in which a communication environment evaluation device receives FC (Fountain Code) based data transmitted by a first communication tower to a second communication tower among a plurality of communication towers connected to the main tower via relay communication; a step in which the communication environment evaluation device evaluates a network communication performance result value (Q) of the first communication tower and at least one relay communication tower located between the first communication tower and the second communication tower based on the received FC based data, wherein the evaluation step comprises: a step in which the communication environment evaluation device calculates the network communication performance result value of the first communication tower and the at least one relay communication tower based on the transmission probability (P), delay condition (D), and transmission path (R) of the FC based data; and a step in which the communication environment evaluation device compares the network communication performance result value of the first communication tower and the at least one relay communication tower with a preset quality-of-service threshold value (Q*). A communication environment evaluation method comprising the step of the communication environment evaluation device activating the WAN (Wide Area Network) module of the communication tower located furthest from the main tower, among the first communication tower and the at least one relay communication tower, wherein the network communication performance result value is less than the communication service quality threshold value. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 A communication environment evaluation method according to claim 1, wherein the calculating step comprises the communication environment evaluation device calculating a network communication performance result value of the first communication tower and the at least one relay communication tower based additionally on at least one measurement value among acceleration, magnetic field, strain, and temperature. Claim 6 A communication environment evaluation device for data transmission via WAN communication, comprising: a main tower and a sensing unit that receives FC (Fountain Code) based data transmitted by a first communication tower to a second communication tower among a plurality of communication towers connected to the main tower via relay communication; A communication environment evaluation device comprising an evaluation unit that evaluates a network communication performance result value (Q) of a first communication tower and at least one relay communication tower located between the first communication tower and the second communication tower based on the received FC-based data, wherein the evaluation unit calculates the network communication performance result value of the first communication tower and the at least one relay communication tower based on the transmission probability (P), delay condition (D), and transmission path (R) of the FC-based data, compares the network communication performance result value of the first communication tower and the at least one relay communication tower with a preset quality-of-service threshold value (Q*), and activates the WAN (Wide Area Network) module of the communication tower located furthest from the main tower among the first communication tower and the at least one relay communication tower, wherein the network communication performance result value is less than the quality-of-service threshold value. Claim 7 delete Claim 8 delete Claim 9 delete Claim 10 In claim 6, the evaluation unit evaluates the network communication performance result of the first communication tower and the at least one relay communication tower based on at least one measurement value of acceleration, magnetic field, strain, and temperature, a communication environment evaluation device. Claim 11 As a communication environment evaluation device for data transmission via WAN communication, at least one processor; A communication environment evaluation device comprising a memory operably connected to the processor and storing at least one code executed by the processor, wherein when the memory is executed through the processor, the processor receives FC (Fountain Code) based data transmitted by a first communication tower among a main tower and a plurality of communication towers connected to the main tower via relay communication to a second communication tower, evaluates a network communication performance result value (Q) of the first communication tower and at least one relay communication tower located between the first communication tower and the second communication tower based on the received FC based data, compares the transmission probability (P) of the FC based data and the calculated network communication performance result value of the individual communication tower with a preset quality-of-service threshold (Q*), and stores a code for evaluating the network communication performance of the plurality of communication towers such that the WAN (Wide Area Network) module of the communication tower located furthest from the main tower among the communication towers whose network communication performance result value is less than the quality-of-service threshold.

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