Secure IoT communication device for distributing peak power of wide-area wireless communication

Abstract

The present invention provides a secure IoT communication device for distributing peak power of wide-area wireless communication, wherein, in a process in which data of a main board is transmitted from a communication module to a server through a base station and data of the server is transmitted from the base station to the main board through the communication module, when a peak current is generated through a main power source and a voltage of a main voltage line is strengthened in the communication module, a constant voltage is output through an auxiliary power source unit to automatically supplement the peak current and the voltage, a separate control unit is provided to activate the auxiliary power source unit by detecting a weak radio wave signal, and power supplied to the communication module is mainly received from the main power source, thereby preventing continuous discharge of the auxiliary power source unit and extending the lifespan of the auxiliary power source unit.

Description

Secure IoT communication device that distributes peak power of wide-area wireless communication The present invention relates to a secure IoT communication device that distributes peak power of wide-area wireless communication. In general, efforts are being made to develop improved 5G communication systems or pre-5G communication systems to meet the increasing demand for wireless data traffic since the commercialization of 4G communication systems, and for this reason, 5G communication systems or pre-5G communication systems are also called Beyond 4G Network communication systems or systems after LTE systems. To achieve high data transmission rates, 5G communication systems are being considered for implementation in ultra-high frequency (mmWave) bands (e.g., 60 gigahertz (60 GHz) bands). To mitigate path loss of radio waves in ultra-high frequency bands and increase the transmission distance of radio waves, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and large-scale antenna technologies are being discussed in 5G communication systems. Additionally, to improve the network of the system, technologies such as evolved small cells, advanced small cells, cloud radio access networks (cloud RAN), ultra-dense networks, device-to-device communication (D2D), wireless backhaul, moving networks, cooperative communication, CoMP (Coordinated Multi-Points), and interference cancellation are being developed in 5G communication systems. In addition, advanced coding modulation (ACM) methods such as FQAM (Hybrid FSK and QAM Modulation) and SWSC (Sliding Window Superposition Coding), as well as advanced access technologies such as FBMC (Filter Bank Multi Carrier), NOMA (non-orthogonal multiple access), and SCMA (sparse code multiple access) are being developed in 5G systems. Meanwhile, the Internet is evolving from a human-centric network where humans create and consume information to an Internet of Things (IoT) network where information is exchanged, received, and processed among distributed components such as objects. The Internet of Everything (IoE), which combines IoT technologies with big data processing technologies through connections to cloud servers, is also emerging. In order to implement IoT, technological elements such as sensing technology, wired / wireless communication and network infrastructure, service interface technology, and security technology are required, and recently, technologies such as sensor networks for connecting objects, machine-to-machine (M2M), and machine-type communication (MTC) are being studied. In the IoT environment, intelligent IT (Internet Technology) services can be provided that collect and analyze data generated from connected objects to create new value in human life, and IoT can be applied to fields such as smart homes, smart buildings, smart cities, smart cars or connected cars, smart grids, healthcare, smart home appliances, and advanced medical services through convergence and combination between existing IT (information technology) technologies and various industries. Accordingly, various attempts are being made to apply 5G communication systems to IoT networks. For example, technologies such as sensor networks, machine-to-machine (M2M), and machine-type communication (MTC) are being implemented using 5G communication techniques such as beamforming, MIMO, and array antennas. The application of cloud radio access networks (cloud RAN), a big data processing technology described above, can also be considered an example of the convergence of 5G and IoT technologies. To meet the increasing demand for wireless data traffic since the commercialization of the 4G (4th generation) communication system, efforts are being made to develop an improved 5G (5th generation) communication system or pre-5G communication system. For this reason, the 5G communication system or pre-5G communication system is also called a communication system after the 4G network (Beyond 4G Network) or a system after the LTE (Long Term Evolution) system (Post LTE). To achieve high data rates, 5G communication systems are being considered for implementation in ultra-high frequency (mmWave) bands (e.g., the 60 GHz band). To mitigate radio path loss and increase the transmission range of radio waves in ultra-high frequency bands, beamforming, massive MIMO (massive MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and large-scale antenna technologies are being discussed in 5G communication systems. Additionally, to improve the network of the system, technologies such as evolved small cells, advanced small cells, cloud radio access networks (cloud RAN), ultra-dense networks, device-to-device communication (D2D), wireless backhaul, moving networks, cooperative communication, CoMP (Coordinated Multi-Points), and interference cancellation are being developed in 5G communication systems. In addition, advanced coding modulation (ACM) methods such as Hybrid Frequency Shift Keying and Quadrature Amplitude Modulation (FQAM) and Sliding Window Superposition Coding (SWSC), as well as advanced access technologies such as Filter Bank Multi Carrier (FBMC), Non Orthogonal Multiple Access (NOMA), and Sparse Code Multiple Access (SCMA), are being developed in 5G systems. The communication technology required for the next-generation IoT (Internet of Things) technology includes the Internet of Things

[0009] However, their characteristics are very different from those of existing cellular communication systems. In particular, while data rate and quality of service (QoS) were indicators of communication quality in existing cellular communication systems, in the IoT environment, a very large number of connections must be guaranteed, and due to the miniaturization of mobile devices and limitations such as batteries, the peak-to-average power ratio (PAPR) that can reduce operating power is crucial. Additionally, to ensure the performance of the next-generation mobile communications coverage lighthouse and cell edge users, a certain amount of power boost is required, but the amount of power boost that can be provided is closely related to the PAPR due to the nonlinearity of the power amplifier, and lowering the PAPR is directly related to the coverage enhancement performance. With the recent development of LTE (Long Term Evolution) and LTE-Advanced, methods and devices for reducing PAPR (peak-to-average power ratio) in wireless communication systems are required. However, the communication module that has been implemented in the past has a limit in raising and lowering the output of the communication module in order to maximize the quality of communication while minimizing power consumption, and in particular, when the communication module transmits a radio wave due to the presence of a base station receiving antenna, if the radio wave received by the base station receiving antenna is weak, the communication module must be able to raise the radio wave signal when the base station sends a signal to the communication module to raise the radio wave, and if the radio wave received by the base station receiving antenna is strong, the communication module must be able to lower the radio wave signal when the base station sends a signal to the communication module to lower the radio wave, which is a problem. Accordingly, in areas with weak radio waves, the communication module outputs radio waves to the maximum, so it receives maximum power from the main power supply, and at this time, there is a problem of voltage drop occurring in the main power supply. In addition, since there is no separate charging device that can supply power when a weak radio signal is detected in the communication module, the power supplied to the communication module is mainly supplied from the main power source, which causes the overall function of the communication module to deteriorate. In particular, even if there is a charging device, in mountainous areas or island villages, the base station is far away, so the radio waves are continuously weak. This makes it impossible to prevent the charging device from being completely discharged, and there is a problem that the lifespan of the expensive charging device is shortened. Meanwhile, power companies have maintained a passive relationship as service providers that simply supply electricity to consumers, but recently, in order to reorganize the power industry and improve efficiency, the need to establish a power value-added service system such as remote metering, demand management, and diversification of rate systems has been raised, and for this, information and communication subscriber network infrastructure technology must be secured, but constructing new communication lines has remained a major problem. With the recent advancement of technology, communication technologies that can send and receive data on power lines for the purpose of supplying electricity have been combined and commercialized, and power lines are already connected to every household all over the country, forming a huge network. A modem for power line communication is provided, and various data such as customer information and power consumption information are stored in the memory of this power line communication modem. However, there has been a problem in which electricity consumption was arbitrarily manipulated to adjust rates by accessing the power line communication modem that performs this function, and a remote metering system was introduced to compensate for this. This remote metering refers to reading the metering data remotely using a terminal without having to have a meter reader visit each customer individually for electricity, gas, and water meters. The remote metering system is a system that automatically collects the readings of remote measuring instruments and the detections of sensors through communication lines using cables or radio waves and aggregates and analyzes them using a computer. This remote metering system collects information through telephone lines, power lines, or radio frequencies, and through the remote metering system, it can be linked to a computer program to issue bills and even understand demand patterns. Considering that such remote metering systems provide important data for billing purposes such as electricity usage, a security system to prepare for external security attacks is a very important issue. We are designing a separate security protocol that can protect metering information through methods such as authentication between remote metering devices and security key management (generation, distribution, renewal, disposal), and presenting a plan for implementing this. However, remote metering and security systems utilizing these conventional technologies have problems such as adding security protocols for security key generation and management, increased network traffic due to separate security protocol operation, increased resource consumption and overhead of the device, increased device implementation cost due to implementation of additional security processes, and delay in metering due to operation and communication of processes other than the pure metering process. In addition, when considering the resource constraints of low-performance embedded devices (metering devices such as power meters), problems in actual implementation cannot be ignored. In addition, when constructing a remote metering system, there is a high possibility that the problems presented above will be aggravated as a network management system is additionally constructed for management efficiency and power value-added services such as integrated metering and load management are added to the same remote metering infrastructure. Therefore, if a separate security management protocol is operated, there is a problem that it may cause periodic meter reading failures due to performing additional tasks other than remote meter reading, and may have the opposite effect on performing remote meter reading, which is the original purpose. Meanwhile, if you look at the security protocol recently defined by DLMS, it is largely divided into data access security and data transmission security. In data access security, access to information on power meters is divided into three types: unrestricted permission (no security), low-level access (low-level security), and high-level access (high-level security). Data transmission security is designed to be operated by dividing it into three types: data encryption, data authentication, and data encryption authentication. However, in security, the most important challenge is how to share security information (security keys) between devices, and in the first security proposed by DLMS, that is, data access security, the security key sharing problem cannot be solved even if the highest level of security is applied, and since authentication between devices is performed only with passwords and previously determined (exposed externally) information, there are various security vulnerabilities inherent in it, and there is a problem that even a method for sharing security information based on this is not presented. In addition, Advanced Metering Infrastructure (AMI) is a general term for devices and systems that digitize existing analog meters and connect them to a communication network to measure and analyze the power consumption of power generation and reception terminals in real time. Such AMI is a core technology for building an intelligent power grid such as EMS (Energy Management System), ESS (Energy Storage System), VPP (Virtual Power Plant), and P2P power trading. Actual electric energy is distributed to end customers through the power grid, and the power grid is a general term for a system composed of power generation facilities that produce electricity, transmission and distribution facilities such as transmission lines, substations, and distribution lines, and reception facilities that consume the transmitted and distributed electricity in general homes or factories. The amount of power at the above power system points (e.g., power plants, step-up substations, primary and secondary step-down substations, transformers, receiving terminals, etc.) can be converted into digital information through an AMI device, and the digital information of the converted power can be transmitted through a communication network. In other words, the physical power path and the digital power information path may be different paths, and if power measurement through an AMI device is not accurate, there may be a discrepancy between the actual power generation and consumption and the power information on the network, which may cause a problem that reduces the reliability of the smart power grid. Recently, data integrity has emerged as an important issue to ensure such reliability, and each industry is paying attention to blockchain among various technologies to secure data integrity, and although blockchain is considered a technology specialized in the transmission of digital information, the blockchain is characterized by the fact that the entire system guarantees data integrity against falsification of data registered in the blockchain system. Efforts have been made to apply blockchain to the systems of each industry, but in the existing systems that applied blockchain, blockchain was applied only to the upper system, and if the entire system is not organically connected through blockchain, the data integrity of the part where blockchain is not applied is not guaranteed. In the case of smart power grids where blockchain technology has been applied in the past, blockchain technology is applied only to the upper system, and in smart power grids, data reliability is very important. In the case of partial application of blockchain technology rather than the entire system as in the past, the problem arises that blockchain technology cannot guarantee the data integrity of the AMI portion where blockchain technology is not applied. As mentioned above, the remote metering system currently in use has security vulnerabilities. In particular, there is a problem in that there is no function to recover backed-up data or overcome a failure when booting or normal device operation is impossible due to program damage. In particular, there is a problem in that the authentication and encryption, management function, and metering function are not divided, so there is a problem in that the reliability of security and system operation as a whole is low. In addition, there is a problem in that program updates for each component cannot be performed remotely. In addition, the existing remote metering system has a problem in that it cannot reduce costs because the central processing component cannot be modularized, and in particular, since it cannot configure a virtual Ethernet port through a USB port, there is a problem in that it cannot emulate as if it is connected to an actual server and performing secure authentication and encrypted communication even before the field installer has registered the modem with the telecommunications company's network or the customer's server, and since there is no certificate to check integrity, there is a problem in that when a hacker maliciously modifies a program, it cannot refuse to execute the modified program or automatically restore the program to the factory default state. In addition, in the event of a power outage, a time-consuming booting process must be performed again when the power is restored, which makes it impossible to perform modem functions continuously, and in the event of a momentary power outage, the system cannot be maintained without rebooting, and real-time operation is difficult with conventional operating systems (OS), and in particular, because it is not divided into applications and middleware, there is a problem that common applications cannot operate compatiblely regardless of the type or manufacturer of the hardware. [Prior Art Literature] Republic of Korea Patent No. 10-2409636 (Registration date: June 13, 2022) Republic of Korea Patent Publication No. 10-2024-0078993 (Published: June 4, 2024) Republic of Korea Patent No. 10-1602895 (Registration date: March 7, 2016) Republic of Korea Patent Publication No. 10-2018-0077979 (Published: July 9, 2018) The purpose of the present invention is to provide a secure IoT communication device that distributes the peak power of wide-area wireless communication by automatically supplementing peak current generation through the main power supply and voltage drop generation of the main voltage line in the communication module by outputting a constant voltage through the auxiliary power supply during the process of transmitting data of the main board to the server through the communication module from the base station and transmitting data of the server to the main board from the base station through the communication module. In addition, another object of the present invention is to provide a secure IoT communication device that distributes the peak power of wide-area wireless communication by having a separate control unit to activate an auxiliary power unit by detecting a weak radio signal, while supplying power to a communication module mainly from the main power supply, thereby preventing continuous discharge of the auxiliary power unit and extending the life of the auxiliary power unit. In addition, another object of the present invention is to provide a secure IoT communication device that distributes the peak power of wide-area wireless communication by providing a separate secure storage for the safe management of certificates and encryption keys, controlling memory and hardware access rights, connecting to an authentication server to exchange mutual authentication and encryption keys through a signed certificate and trust chain, and using the exchanged encryption keys to achieve encrypted communication, and dividing it into authentication and encryption, management functions, and metering functions to ensure security and reliability of system operation. In order to solve the above object, the present invention provides a secure IoT communication device that distributes peak power of wide-area wireless communication, including a main power unit that receives constant power through a smart meter, a communication module unit that receives constant power supplied through the main power unit, an auxiliary power unit that receives and stores constant power supplied through the main power unit, an electronic switch unit that pumps the power charged in the auxiliary power unit to be supplied to the communication module unit when the signal transmission between the communication module unit and the base station is in a shadow area or is weak, a main board that controls the charging power of the auxiliary power unit to be supplied to the communication module unit when a weak radio signal is detected from the communication module unit, a control unit that is driven by a control signal of the main board and enables or disables the electronic switch unit in the process of supplying charging power through the auxiliary power unit, and the main board controls access to memory and hardware, and has a copy of the boot code and an integrity check value, and prevents booting and normal operation of the device from being impossible due to program damage. In this case, it is comprised of a security enhancement section consisting of secure boot and trust zone to overcome failure by restoring the backed-up boot code to the boot area. Accordingly, in the process of transmitting data of the main board to the server through the base station from the communication module unit, and transmitting data of the server from the base station to the main board through the communication module unit, when peak current occurs through the main power unit and voltage increase of the main voltage line occurs in the communication module unit, the auxiliary power unit automatically supplies constant voltage to supplement the peak current. In addition, the control unit activates the auxiliary power unit by detecting a weak radio signal, and is configured to primarily receive power supplied to the communication module unit from the main power unit, thereby preventing continuous discharge of the auxiliary power unit and extending the life of the auxiliary power unit. In addition, in the case of mountainous areas or island villages, where the base station is far away and the radio wave is continuously weak, the auxiliary power supply is configured to predict the lifespan of the auxiliary power supply through the total usage time accumulation and daily usage time statistics to prevent a complete discharge state, notify the upper server, and change the operation scenario to extend the lifespan. Here, the above operation scenario is such that the auxiliary power supply unit transmits meter reading data every hour instead of every 15 minutes during the first stage discharge, transmits meter reading data every day instead of every hour during the second stage discharge, transmits meter reading data every month instead of every day during the third stage discharge, and stops transmitting meter reading data during the final discharge to prevent damage to the auxiliary power supply unit. The present invention has the effect of automatically supplementing peak current generation through the main power supply and voltage drop generation of the main voltage line in the communication module by outputting a constant voltage through the auxiliary power supply during the process of transmitting data of the main board to the server through the base station from the communication module and transmitting data of the server from the base station to the main board through the communication module. In addition, the present invention has a separate control unit that activates the auxiliary power unit by detecting a weak radio signal, and supplies power to the communication module mainly from the main power supply, thereby preventing continuous discharge of the auxiliary power unit, thereby extending the life of the auxiliary power unit. In addition, the present invention predicts the lifespan of the auxiliary power supply through the total usage time accumulation and daily usage time statistics, and notifies the upper server, thereby preventing a complete discharge state in cases where the base station is far away in a mountainous area or island village, and at the same time changes the operation scenario, thereby extending the lifespan of the auxiliary power supply, which is an expensive piece of equipment. In addition, the present invention has the effect of enabling safe management of certificates and encryption keys by being equipped with a secure storage, and controlling access rights to memory and hardware, while connecting to an authentication server, mutual authentication and exchange of encryption keys through signed certificates and trust chains are possible, and encrypted communication is possible using the exchanged encryption keys, and it is divided into authentication and encryption, management functions, and inspection functions, so that security and reliability of system operation are maximized. FIG. 1 is a block diagram illustrating a secure IoT communication device that distributes peak power of wide-area wireless communication implemented according to the present invention. Figure 2 is a block diagram illustrating an exemplary embodiment of a security enhancement unit configured on a main board according to the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings so that a person having ordinary skill in the art to which the present invention pertains can easily implement the present invention. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention, parts that are not related to the description are omitted, and the same reference numerals are used for identical or similar components throughout the specification. Accordingly, the present invention can raise and lower the output of the communication module to maximize the quality of communication while minimizing the power consumption of the communication module, and when the communication module transmits a radio wave through the base station receiving antenna, if the radio wave received by the base station receiving antenna is weak, the base station sends a signal to the communication module to raise the radio wave, and the communication module raises the radio wave signal, and if the radio wave received by the base station receiving antenna is strong, the base station sends a signal to the communication module to lower the radio wave, and the communication module lowers the radio wave signal to adjust. Accordingly, in the case of a weak radio wave area, the communication module unit outputs the maximum radio wave and receives the maximum power from the main power unit. At this time, a voltage drop occurs in the main power unit. To resolve this, when the communication module unit detects a weak radio wave, a signal is sent to the power switch unit, and the power charged through the auxiliary power unit and the power supplied from the main power unit are combined and supplied to the communication module unit. Also, the operation of the power switch unit can be determined by the enable or disable signal of the main board even in the case of a weak radio wave detection signal. A secure IoT communication device that distributes peak power of wide-area wireless communication of the present invention is described with reference to the attached drawings. That is, the present invention is provided with a main power supply unit (10) that receives constant power through a smart meter (100), and the communication module unit (20) receives constant power supplied through the main power supply unit (10). Here, an auxiliary power supply unit (30) is provided that receives and stores constant power supplied through the main power supply unit (10) and is charged, and an electronic switch unit (40) is provided that pumps the power charged in the auxiliary power supply unit (30) to be supplied to the communication module unit (20) when the signal transmission between the communication module unit (20) and the base station (not shown) is in a shaded area or is weak, and a main board (50) is provided that controls the charging power of the auxiliary power supply unit (30) to be supplied to the communication module unit (20) when a weak radio signal is detected from the communication module unit (20). In addition, a control unit (60) is provided that enables or disables the electronic switch unit (40) in the process of being driven by the control signal of the main board (50) and supplying charging power through the auxiliary power unit (30). Here, the main board (50) is equipped with a security enhancement unit (11), which controls memory and hardware access rights, has a copy of the boot code and an integrity check value, and is configured with a secure boot and trust zone to overcome failures by restoring the backed-up boot code to the boot area in the event that booting and normal device operation are impossible due to program damage. It is desirable to limit the peak power value of the above main power unit (10) to a certain power (e.g., 2.5 W), and when the communication module unit (20) is used normally, constant power is supplied to the auxiliary power unit (30) to charge it. At this time, the peak power value is charged so that it does not exceed 2.5 W, and the communication module unit (20) receives charging power through the auxiliary power unit (30). This is done so that, in the process of transmitting data of the main board (50) to the server through the base station from the communication module unit (20), and transmitting data of the server from the base station to the main board (50) through the communication module unit (20), peak current is generated through the main power unit (10) and voltage increase of the main voltage line occurs in the communication module unit (20), and a constant voltage is automatically output through the auxiliary power unit (30) to supplement it. In addition, the control unit (60) activates the auxiliary power unit (30) by detecting a weak radio signal, which allows the power supplied to the communication module unit (20) to be mainly supplied from the main power unit (10), thereby preventing continuous discharge of the auxiliary power unit (30) and extending the life of the auxiliary power unit (30). Here, in the case of mountainous areas or island villages, the auxiliary power supply (30) is far away, so that a state of weak radio waves continues to occur, and in order to prevent a state of complete discharge, the lifespan of the auxiliary power supply is predicted through the total usage time accumulation and daily usage time statistics, and the upper server is notified of the predicted lifespan and the operation scenario is changed to extend the lifespan of the auxiliary power supply (30) as a whole. Accordingly, the above operation scenario is such that the auxiliary power supply (30) transmits meter reading data every hour instead of every 15 minutes during the first stage discharge, and if the second stage discharge is performed, the meter reading data is transmitted every day instead of every hour, and if the third stage discharge is performed, the meter reading data is transmitted every month instead of every day, and if the final discharge is performed, the transmission of meter reading data is stopped to prevent damage to the auxiliary power supply (30). The above main board (10) is equipped with a security agent unit (15), which connects to the authentication server (91) of the security authentication server (90) to exchange mutual authentication and encryption keys through a signed certificate and trust chain in order to secure security and system operation reliability. The above main board (10) is equipped with a management agent unit (16), which performs encrypted communication using the encryption key exchanged in the security agent unit (15). The above main board (10) is equipped with a meter reading agent unit (17), which is also configured to manage meter reading of the meter (30) to ensure security and system operation reliability. In addition, the main board (10) is equipped with a secure storage (12), which is installed between the security enhancement unit (11) and the security agent unit (15) to ensure safe management of certificates and encryption keys. The above security authentication server (90) is divided into an authentication server (91), a management server (92), and a metering server (93). The authentication server (91) is interconnected with the security agent unit (15), the management server (92) is interconnected with the management agent unit (16), and the metering server (93) is interconnected with the metering agent unit (17). The above main board (10) is equipped with a boot code (13), which performs functions related to security and system operation through an embedded Linux operating system (OS). In addition, the main board (10) is equipped with middleware (14), which is implemented in the operating system of the boot code (13), and is divided into an application consisting of a security agent part (15), a management agent part (16), and a metering agent part (17), so that a common application written in JAVA, etc. can operate compatiblely regardless of the type or manufacturer of the hardware. Accordingly, the security agent unit (15), management agent unit (16), metering agent unit (17), middleware (14) and boot code (13) provided on the main board (10) can operate a security system according to encryption, so that remote updates can be made by an administrator or installer through a security authentication server (90) or an administrator terminal. Additionally, security and system operation for the main board (10) can be implemented in a real-time operating system (RT-OS). Meanwhile, the above security enhancement unit (11) is equipped with a secure boot (111), which includes an unchangeable ROM program execution unit that supports secure booting to ensure safe and secure booting, and is equipped with an integrity check (hash) value and a certificate for checking integrity for the execution program installed by the customer, and is configured to reject execution of the modified program and automatically restore the program to the factory state when a hacker maliciously modifies the program. In addition, the main board (10) is equipped with a USB port (not shown), and a virtual Ethernet port can be configured through this USB port so that even before the field installer registers the modem with the telecommunications company's network or customer server, it can be connected to an actual server and emulated as if it were performing secure authentication and encrypted communication. In addition, the main board (10) is equipped with a battery or supercap (not shown) that can store backup power, so that even after a power outage, power outage information can be reported to the customer's server through this backup power, and the system can be maintained without rebooting in the event of a momentary power outage of several seconds to several tens of seconds, so that when the power outage is recovered, the entire function can be continuously performed without having to perform the time-consuming booting process again. In addition, the central processing component of the main board (10) is modularized to form a SOM (System On Module), and the components for the security enhancement unit (11), boot code (13), and middleware (14) are modularized in this SOM. Accordingly, the core central processing component is modularized and separated into the SOM (System On Module), and the PCB layer is configured in multiple layers, and the measurement unit and the base board are configured to be able to use double-sided or single-sided PCBs, so that the overall manufacturing cost or installation cost can be reduced. In addition, data measured through the smart meter (100) is transmitted to a security authentication server (90) through a communication module (not shown), and can be transmitted to the administrator's terminal through the security authentication server (90) by linking with the app of the administrator's terminal. Here, the communication module (32) can use the internal communication network of PLC communication, and can also use an external communication network selected from among LTE, RS-485, Wi-Fi, or Bluetooth. Above, specific embodiments of the present invention have been described, but it is obvious that various modifications are possible within the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims described below but also by equivalents of the claims. That is, it should be understood that the above-described embodiments are exemplary in all respects and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. [Explanation of symbols] 10: Main power supply 11: Security enhancement unit 20: Communication module section 30: Auxiliary power section 40: Electronic switch section 50: Main board 60: Control unit 100: Smart meter The present invention relates to a secure IoT communication device that disperses the peak power of wide-area wireless communication, which can raise and lower the output of a communication module to maximize the quality of communication while minimizing the power consumption of the communication module, and which, when a communication module transmits a radio wave through a base station receiving antenna, if the radio wave received by the base station receiving antenna is weak, the base station sends a signal to the communication module to raise the radio wave, and if the radio wave received by the base station receiving antenna is strong, the base station sends a signal to the communication module to lower the radio wave, and the communication module lowers the radio wave signal to control the transmission.

Claims

1. Main power supply that is constantly supplied with power through a smart meter; A communication module unit that receives constant power supplied through the main power unit; An auxiliary power supply that receives constant power supplied through the main power supply and stores the charge; An electronic switch unit that pumps power charged in the auxiliary power unit to supply it to the communication module unit when the signal transmission between the communication module unit and the base station is in a shaded area or is weak; A main board that controls the charging power of the auxiliary power supply unit to be supplied to the communication module unit when a weak radio signal is detected in the above communication module unit; A control unit that enables or disables the electronic switch unit while being driven by the control signal of the main board and charging power is supplied through the auxiliary power unit; and The above motherboard has a security enhancement unit consisting of Secure Boot and Trust Zone that controls memory and hardware access rights, has a copy of the boot code and an integrity check value, and overcomes failures by restoring the backed-up boot code to the boot area in the event that booting and normal device operation are impossible due to program damage; A secure IoT communication device that distributes peak power of wide-area wireless communication, characterized by including:

2. In paragraph 1, A secure IoT communication device that distributes peak power of wide-area wireless communication, characterized in that, in the process of transmitting data of the main board to a server through a base station from a communication module unit and transmitting data of the server from the base station to the main board through a communication module unit, peak current is generated through the main power unit and when voltage drop occurs in the main voltage line in the communication module unit, a constant voltage is automatically output through the auxiliary power unit to supplement it.

3. In paragraph 1, A secure IoT communication device that distributes peak power of wide-area wireless communication, characterized in that the control unit activates the auxiliary power unit by detecting a weak radio signal, and the power supplied to the communication module unit is mainly supplied from the main power unit, thereby preventing continuous discharge of the auxiliary power unit and extending the life of the auxiliary power unit.

4. In paragraph 1, The above auxiliary power supply is characterized in that, in the case of mountainous areas or island villages, when the base station is far away and a state of weak radio waves continues to occur, the lifespan of the auxiliary power supply is predicted through the total usage time accumulation and daily usage time statistics, and the lifespan is notified to the upper server and the operation scenario is changed to extend the lifespan. A secure IoT communication device that distributes the peak power of wide-area wireless communication.

5. In paragraph 4, The above operation scenario is a secure IoT communication device that distributes peak power of wide-area wireless communication, characterized in that the auxiliary power supply unit transmits metering data every hour instead of every 15 minutes during the first stage discharge, transmits metering data every day instead of every hour during the second stage discharge, transmits metering data every month instead of every day during the third stage discharge, and stops transmitting metering data during the final discharge to prevent damage to the auxiliary power supply unit.

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