KR102619794B1 - Producing apparatus for radio map, and control method thereof - Google Patents

Abstract

The present invention is a radio map generating device for verifying the integrity of the wireless LAN detection data in connection with a blockchain network in generating a fingerprint radio map based on wireless LAN detection data collected in a wireless LAN environment. and its operation method.

Description

Radio map generator and its operation method {PRODUCING APPARATUS FOR RADIO MAP, AND CONTROL METHOD THEREOF}

The present invention relates to a technology for verifying the integrity of wireless LAN detection data in connection with a blockchain network in creating a fingerprint radio map based on wireless LAN detection data collected in a wireless LAN environment.

Today, thanks to the development of mobile communication technology and smart devices, location-based services (LBS), which can be provided based on one's location, are growing rapidly.

As a result, smartphone navigation map services and car navigation services can be easily used in daily life, and technological demand for providing more diverse location-based services is increasing.

In general, location-based services are provided using GPS outdoors, but in indoor locations, there is a significant loss of satellite signals, which causes positioning accuracy to be very low or positioning to be impossible.

Recently, the proportion of indoor space in the daily lives of ordinary people is increasing, and these indoor spaces are becoming larger and more complex. As a result, technology development to provide location-based services in indoor spaces is actively underway.

In this regard, the main indoor positioning technologies for smartphones (hereinafter referred to as 'terminal devices') are currently being researched based on wireless LAN (Wi-Fi), sensors, beacons, etc. Among them, wireless LAN-based Fingerprinting positioning, an indoor positioning technique, is in the spotlight as one of the most common technologies that guarantees high precision.

In the fingerprinting location method, the service provider acquires a wireless LAN fingerprint based on a wireless LAN signal transmitted from an indoor or outdoor wireless LAN AP, and links the coordinates to the obtained wireless LAN fingerprint to create a fingerprint radio map (Fingerprint Radio Map). ) can be built.

Through this, when a service subscriber receives a wireless LAN signal at a certain point, he or she can refer to the fingerprint radio map to know the location of that point.

Meanwhile, the most important thing in this fingerprinting positioning method is to build a reliable fingerprint radio map, and for this, it is necessary to detect the wireless LAN signal applied as raw data of the fingerprint radio map, that is, the wireless LAN signal. The integrity of wireless LAN detection data must be guaranteed.

Accordingly, the present invention proposes a new method that can guarantee the integrity of wireless LAN detection data in generating a fingerprint radio map.

The present invention was created in consideration of the above-mentioned circumstances, and the purpose to be achieved by the present invention is to verify the integrity of wireless LAN detection data collected in a wireless LAN environment in connection with a blockchain network, thereby verifying the integrity of the wireless LAN. The goal is to create a fingerprint radio map based on sensing data.

A radio map generating device according to an embodiment of the present invention for achieving the above object includes a processor that processes operations related to generating a fingerprint radio map; and a memory storing at least one command executed through the processor, wherein the at least one command includes: an allocation command for assigning an authentication key to each of a data collection device and a control device in a specific area; A confirmation command to confirm from the control device the wireless LAN detection data obtained from the data collection device based on the authentication key; and a verification command for verifying the wireless LAN detection data in connection with a blockchain network.

Specifically, the at least one command may further include a creation command for generating a fingerprint radio map for the specific area based on the verified wireless LAN detection data.

Specifically, when it is confirmed that a verification event has occurred from the wireless LAN detection data received every cycle from the data collection device, the control device collects the wireless LAN detection data from the data collection device through a control command based on the authentication key. can be reacquired.

Specifically, the wireless LAN detection data includes at least one of a Basic Service Set IDentifier (BSSID) and a Service Set IDentifier (SSID), which are wireless LAN identification information in the specific area, and the verification event is performed at a specific period. This may occur when at least one of the BSSID and the SSID changes from a previous period adjacent to the specific period.

Specifically, the at least one command may further include an update command for updating an authentication key already assigned to each of the data collection device and the control device when the verification event occurs.

Specifically, the update command may update a pre-assigned authentication key when the number of occurrences of the verification event reaches a threshold number according to the importance pre-defined for the specific area.

Specifically, if the data collection device is confirmed to be moving at the time the verification event is confirmed, the control device transmits a control command to stop movement or command a return to the point where the verification event was confirmed. Wireless LAN detection data can be reacquired.

Specifically, the specific area is one of a number of participating nodes constituting the blockchain network, and the verification command is such that a new block of the blockchain generated in relation to the wireless LAN detection data is verified from the remaining participating nodes. In this case, the blockchain including the new block can be shared with the plurality of participating nodes.

A method of operating a radio map generating device according to an embodiment of the present invention to achieve the above object includes an allocation step of allocating an authentication key to each of a data collection device and a control device in a specific area; A confirmation step of confirming wireless LAN detection data obtained from the data collection device based on the authentication key from the control device; And a verification step of verifying the wireless LAN detection data through linkage with a blockchain network.

Specifically, the method may further include a generation step of generating a fingerprint radio map for the specific area based on the verified wireless LAN detection data.

Specifically, when it is confirmed that a verification event has occurred from the wireless LAN detection data received every cycle from the data collection device, the control device collects the wireless LAN detection data from the data collection device through a control command based on the authentication key. can be reacquired.

Specifically, the wireless LAN detection data includes at least one of a Basic Service Set IDentifier (BSSID) and a Service Set IDentifier (SSID), which are wireless LAN identification information in the specific area, and the verification event is performed at a specific period. This may occur when at least one of the BSSID and the SSID changes from a previous period adjacent to the specific period.

Accordingly, according to the radio map generating device and its operating method according to an embodiment of the present invention, in generating a fingerprint radio map based on wireless LAN detection data collected in a wireless LAN environment, a blockchain network By verifying the integrity of wireless LAN detection data in conjunction with , the reliability and accuracy of the fingerprint radio map can be improved.

1 is a schematic configuration diagram of a fingerprint location determination system according to an embodiment of the present invention.
Figure 2 is a schematic configuration diagram of a control device according to an embodiment of the present invention.
Figure 3 is an example of a hardware system for implementing a control device according to an embodiment of the present invention.
Figure 4 is a schematic configuration diagram of a radio map generating device according to an embodiment of the present invention.
Figure 5 is an example diagram of a hardware system for implementing a radio map generating device according to an embodiment of the present invention.
Figure 6 is a schematic flowchart for explaining the operation flow in the fingerprint location determination system according to an embodiment of the present invention.
Figure 7 is a schematic flowchart for explaining the operation flow in a control device according to an embodiment of the present invention.
Figure 8 is a schematic flowchart for explaining the operation flow in the radio map generating device according to an embodiment of the present invention.

It should be noted that the technical terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in this specification, unless specifically defined in a different way in this specification, should be interpreted as meanings commonly understood by those skilled in the art in the technical field to which the present invention pertains, and are not overly comprehensive. It should not be interpreted in a literal or excessively reduced sense. Additionally, if the technical terms used in this specification are incorrect technical terms that do not accurately express the spirit of the present invention, they should be replaced with technical terms that can be correctly understood by those skilled in the art. In addition, general terms used in the present invention should be interpreted according to the definition in the dictionary or according to the context, and should not be interpreted in an excessively reduced sense.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of the reference numerals, and duplicate descriptions thereof will be omitted. Additionally, when describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted. In addition, it should be noted that the attached drawings are only intended to facilitate easy understanding of the spirit of the present invention, and should not be construed as limiting the spirit of the present invention by the attached drawings. The spirit of the present invention should be construed as extending to all changes, equivalents, or substitutes other than the attached drawings.

Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings.

Figure 1 is a diagram illustrating a fingerprint location determination system according to an embodiment of the present invention.

As shown in Figure 1, the fingerprint positioning system according to an embodiment of the present invention includes a data collection device 10 that generates wireless LAN detection data by detecting a wireless LAN signal in a specific area (a), and a specific area. A control device 20 that controls the data collection device 20 in (a), and a radio map generator that generates a fingerprint radio map for a specific area (a) using wireless LAN detection data. It has a configuration including (30).

Here, the specific area (a) is one blockchain participating node consisting of at least one data collection device 10 and the control device 20, and the remaining areas (b, c, d, Together with e), a blockchain network will be formed.

In this blockchain network, continuously increasing data is recorded in blocks of specific units, and each participant node that makes up the P2P (peer-to-peer) network can manage the blocks in a chain-type data structure.

At this time, blockchain data composed of a chain-type data structure is operated in the form of a distributed ledger at each node without a central system.

Each participating node that makes up the blockchain network manages blocks in a chain based on a data structure that records the hash value of the previous block in the current block, allowing the previous block to be referenced through the hash value.

Therefore, as the number of blocks managed in a chain at each node accumulates, forgery and falsification of transaction data recorded in the block becomes more difficult, and the reliability of transaction data recorded in each block can be improved.

The data collection device 10 refers to a device for detecting (scanning) a wireless LAN signal (Wi-Fi signal) transmitted from a wireless access device (AP, Access Point) in a specific area (a), for example, in a specific area. In (a), it may refer to an Internet of Things (IoT) device that moves or is installed in a fixed location.

Here, the data in which the data collection device 10 detects the wireless LAN signal, that is, the wireless LAN detection data, includes at least one of, for example, a Basic Service Set IDentifier (BSSID), which is wireless LAN identification information, and a Service Set IDentifier (SSID). may be included.

The control device 20 is a device for controlling the operation of the data collection device 10 located in a specific area (a) through control commands, for example, using a mobile terminal such as a smartphone, a computer such as a PC, or a user interface. It may refer to a wired or wireless mobile or fixed controller.

The radio map generating device 30 refers to a device that acquires wireless LAN detection data detected by the data collection device 10 from the control device 20 and generates a fingerprint radio map.

This radio map generating device 30 may be implemented in the form of, for example, a web server, database server, proxy server, etc., and may be used as a network load balancing mechanism or a variety of software that allows a service device to operate on the Internet or other networks. More than one can be installed and implemented as a computerized system.

In addition, the network may be an http network, a private line, an intranet, or any other network, and the connection between each component in the fingerprinting location system according to an embodiment of the present invention may be any data. It can be connected to a secure network to avoid attacks by hackers or other third parties.

The fingerprint positioning system according to an embodiment of the present invention can generate a fingerprint radio map for a specific area (a) using the wireless LAN detection data detected by the data collection device 10 according to the above-described configuration. It is possible.

In other words, the wireless LAN signal transmitted from the wireless access device (AP) in a specific area (a), which may be indoors or outdoors, is obtained by obtaining a wireless LAN fingerprint based on the wireless LAN signal, and linking the coordinates to the obtained wireless LAN fingerprint. A fingerprint radio map can be constructed.

Through this, when a service subscriber receives a wireless LAN signal at a certain point, he or she can refer to the fingerprint radio map to know the location of that point.

Meanwhile, the most important thing in this fingerprinting positioning method is to build a reliable fingerprint radio map, and for this, it is necessary to detect the wireless LAN signal applied as raw data of the fingerprint radio map, that is, the wireless LAN signal. The integrity of wireless LAN detection data must be guaranteed.

Accordingly, the present invention seeks to propose a new method for verifying the integrity of wireless LAN detection data in generating a fingerprint radio map. Hereinafter, a control device 20 and a radio map generating device 30 for realizing this will be described. The configuration will be described in more detail.

Figure 2 shows the configuration of the control device 20 according to an embodiment of the present invention.

As shown in FIG. 2, the control device 20 according to an embodiment of the present invention includes a confirmation unit 21 that checks whether a verification event has occurred, a control unit 22 that controls the data collection device, and a blockchain. It may have a configuration including a management unit 23 for management.

The structural premise or at least part of the control device 20 including the determination unit 21, the control unit 22, and the management unit 23 are implemented in the form of a software (application) module or hardware module executed by a processor. Alternatively, it may be implemented as a combination of software modules and hardware modules.

In particular, the management unit 23 is a component to support integrity verification of wireless LAN detection data through linkage with the blockchain network, and may be the entity that maintains and manages blockchain data based on the blockchain algorithm, which is a virtual It can be implemented in the form of a machine (Virtual Machine) or API (Application Programming Interface).

Meanwhile, the control device 20 according to an embodiment of the present invention, in addition to the above-described configuration, further includes a communication unit 34, which is an RF module for actual communication with the data collection device and the radio map generating device 30. You can have

For reference, since this configuration of the communication unit 24 corresponds to the communication unit 2310 to be described with reference to FIG. 3, a detailed description will be provided below.

Ultimately, the control device 20 according to an embodiment of the present invention can support integrity verification of wireless LAN detection data in connection with a blockchain network based on the above-described configuration. Hereinafter, the control device 20 for this will be described. I will explain each of my configurations in more detail.

The confirmation unit 21 performs a function of checking whether a verification event has occurred.

More specifically, the confirmation unit 21 checks whether a verification event has occurred from the wireless LAN detection data received every cycle from the data collection device 10.

At this time, the confirmation unit 21 determines that at least one of BSSID (Basic Service Set IDentifier) and SSID (Service Set IDentifier), which are wireless LAN identification information in the wireless LAN detection data received from the data collection device 10 at a specific period, is a neighbor. If there is a change from one previous cycle, it is confirmed that a verification event has occurred.

When such a verification event occurs, the integrity verification process for the wireless LAN detection data is followed according to an embodiment of the present invention. In this way, a verification event is defined according to an embodiment of the present invention, and integrity verification is performed only when the event occurs. This can be understood as preventing integrity verification from being carried out indiscriminately and frequently, thereby minimizing system resource consumption due to integrity verification.

The control unit 22 performs the function of re-obtaining wireless LAN detection data.

More specifically, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control unit 22 transmits an authentication key-based control command to the data collection device 10, thereby The wireless LAN detection data is re-acquired from the received data collection device 10.

Here, the authentication key is a private key and public key pair generated by the radio map generating device 30, and is stored and managed by being allocated to the data collection device 10 and the control device 20 of the specific area (a), respectively. , the public key of the data collection device 10 may be additionally stored and managed in the control device 20.

Accordingly, the control unit 22 generates a control command containing its own private key and the public key of the data collection device 10 and transmits it to the data collection device 10, thereby detecting the wireless LAN at the time the verification event occurs. Data can be re-requested to the data collection device 10.

At this time, when a control command is received, the data collection device 10 verifies the legitimacy of the control command through its public key, and when the legitimacy of the control command is verified, it re-detects the wireless LAN signal according to the verified control command. Wireless LAN detection data is returned to the control device 20.

Here, the legitimacy of the control command can be verified by checking whether the public key in the control command matches the private key stored in the data collection device 10, and if the legitimacy is not verified, the control command is It can be ignored.

For reference, if the control unit 22 determines that the data collection device 10 is moving at the time the verification event is confirmed, the control unit 22 transmits a control command to stop movement or command a return to the point where the verification event was confirmed. , wireless LAN detection data can be re-acquired from the data collection device 10.

This is to ensure the identity of the wireless LAN detection data for which the verification event is confirmed and the wireless LAN detection data re-obtained from the data collection device 10.

Meanwhile, in the case of the authentication key assigned to each of the data collection device 10 and the control device 20 in the specific area (a), it can be updated with a new authentication key after the verification event occurs for the purpose of strengthening security.

In other words, when a verification event occurs, the radio map generating device 30 updates the authentication key already assigned to each of the data collection device 10 and the control device 20 with a new authentication key, thereby updating the newly generated verification event. For this, control commands based on the updated authentication key can be processed.

At this time, the radio map generating device 30 may vary the operation of updating the authentication key according to the importance of each area, and accordingly, the number of verification events occurring is set to a threshold number (e.g. : 3 times), the authentication key can be renewed only once a year.

For example, in areas with higher importance, the authentication key can be renewed when a smaller number of verification events occur. Conversely, in areas with higher importance, the authentication key can be renewed only after a greater number of verification events have occurred. It is possible.

The management unit 23 performs the function of creating a new block related to wireless LAN detection data.

More specifically, when the wireless LAN detection data is re-acquired from the data collection device 10, the management unit 23 creates a new block of the blockchain containing the wireless LAN detection data.

At this time, the new block includes the hash value of the existing block previously generated during the integrity verification process of the existing wireless LAN detection data.

Meanwhile, in relation to this, when the creation of a new block is confirmed, the radio map generator 30 verifies the legitimacy of the new block confirmed by at least some of the remaining participating nodes (b, c, d) of the block check network. After receiving (approval), the blockchain including the verified new block is shared with each participating node (a, b, c, d).

Ultimately, in one embodiment of the present invention, as the integrity of the wireless LAN detection data is verified through linkage with the blockchain network, BSSID (Basic Service Set IDentifier), which is wireless LAN identification information, and SSID included in the wireless LAN detection data. (Service Set IDentifier) can be effectively prevented from being forged or altered.

Meanwhile, it has been mentioned that each component within the control device 20 described above may be implemented in the form of a software module or hardware module executed by a processor, or may also be implemented in the form of a combination of a software module and a hardware module. .

In this way, a software module, a hardware module, or a combination of a software module and a hardware module executed by a processor may be implemented as an actual hardware system (eg, a computer system).

Therefore, hereinafter, a hardware system 2000 that implements the control device 20 according to an embodiment of the present invention in hardware form will be described with reference to FIG. 3.

For reference, what will be described below is an example of each configuration within the control device 20 described above implemented as a hardware system 2000, and it should be borne in mind that each configuration and its resulting operation may be different from the actual system. something to do.

As shown in FIG. 3, the hardware system 2000 according to an embodiment of the present invention has a configuration including a processor unit 2100, a memory interface unit 2200, and a peripheral device interface unit 2300. You can.

Each component within the hardware system 2000 may be a separate component or integrated into one or more integrated circuits, and each of these components may be combined by a bus system (not shown).

Here, in the case of a bus system, any one or more individual physical buses, communication lines/interfaces, and/or multi-drop or point connected by appropriate bridges, adapters, and/or controllers. It is an abstraction that represents point-to-point connections.

The processor unit 2100 communicates with the memory unit 2210 through the memory interface unit 2200 to perform various functions in the hardware system, thereby executing various software modules stored in the memory unit 2210. .

Here, the confirmation unit 21, control unit 22, and management unit 23, which are components of the control device 20 described with reference to FIG. 2, may be stored in the memory unit 2210 in the form of a software module, and other An operating system (OS) may be additionally stored.

For operating systems (e.g., I-OS, Android, Darwin, RTXC, LINUX, UNIX, OS , power management, etc.), and serves to facilitate communication between various hardware modules and software modules.

For reference, the memory unit 2210 may include a memory hierarchy including, but not limited to, a cache, main memory, and secondary memory. In the case of this memory hierarchy, for example, RAM (e.g., SRAM, It may be implemented through any combination of DRAM, DDRAM), ROM, FLASH, magnetic and/or optical storage devices (e.g., disk drives, magnetic tapes, compact disks (CDs), and digital video discs (DVDs), etc.).

The peripheral device interface unit 2300 serves to enable communication between the processor unit 2100 and peripheral devices.

Here, the peripheral device is intended to provide different functions to the hardware system 2000, and in one embodiment of the present invention, for example, a communication unit 2310 may be included.

Here, the communication unit 2310 performs the role of providing a communication function with other devices, and for this purpose, for example, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, and a codec ( CODEC) chipset, memory, etc., but is not limited thereto, and may include known circuits that perform this function.

Communication protocols supported by the communication unit 2310 include, for example, Wireless LAN (WLAN), Digital Living Network Alliance (DLNA), Wireless Broadband (Wibro), and World Interoperability for Microwave Access (Wimax). ), GSM (Global System for Mobile communication), CDMA (Code Division Multi Access), CDMA2000 (Code Division Multi Access 2000), EV-DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA) , HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), IEEE 802.16, Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced), broadband wireless mobile communication service ( Wireless Mobile Broadband Service: WMBS, Bluetooth, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra-Wideband), ZigBee, Near Field Communication: NFC), Ultrasound Communication (USC), Visible Light Communication (VLC), Wi-Fi, Wi-Fi Direct, etc. may be included. In addition, wired communication networks include wired LAN (Local Area Network), wired WAN (Wide Area Network), Power Line Communication (PLC), USB communication, Ethernet, serial communication, and optical/coaxial. Cables, etc. may be included, and are not limited to any protocols that can provide a communication environment with other devices.

Ultimately, in the hardware system 2000 according to an embodiment of the present invention, each component in the control device 20 stored in the form of a software module in the memory unit 2210 is a function of the instructions executed by the processor unit 2100. By performing an interface with the communication unit 2310 through the memory interface unit 2200 and the peripheral device interface unit 2300, it is possible to support integrity verification of wireless LAN detection data in connection with a blockchain network.

After completing the description of the configuration of the control device 20 according to an embodiment of the present invention, we will continue with the description of the configuration of the radio map generating device 30.

Figure 4 shows a schematic configuration of a radio map generating device 30 according to an embodiment of the present invention.

As shown in FIG. 4, the radio map generating device 30 according to an embodiment of the present invention includes an allocation unit 31 that allocates an authentication key, a confirmation unit 32 that checks wireless LAN detection data, and a wireless It may have a configuration including a verification unit 33 that verifies LAN detection data.

Additionally, the radio map generating device 30 according to an embodiment of the present invention may have a configuration that further includes a generator 34 that generates a fingerprint radio map in addition to the configuration described above.

All or at least part of the configuration of the radio map generating device 30, including the allocation unit 31, confirmation unit 32, verification unit 33, and generation unit 34, is a software module executed by a processor. It may be implemented in the form of a hardware module or a combination of a software module and a hardware module.

Here, the software module can be understood as, for example, an instruction executed by a processor that controls operations within the radio map generating device 30, and these instructions are stored in the memory within the radio map generating device 30. You will be able to have it.

In particular, the verification unit 33 is a component for verifying the integrity of wireless LAN detection data through linkage with the blockchain network, and may be the entity that maintains and manages blockchain data based on the blockchain algorithm, which is a virtual It can be implemented in the form of a machine (Virtual Machine) or API (Application Programming Interface).

Meanwhile, in addition to the above-described configuration, the radio map generating device 30 according to an embodiment of the present invention includes a communication unit 35, which is an RF module for actual communication with the data collection device 10 and the control device 20. It may have a configuration that includes more.

For reference, since the configuration of the communication unit 35 corresponds to the communication unit 3310 to be described with reference to FIG. 5, specific details will be described below.

In the end, the radio map generating device 30 according to an embodiment of the present invention verifies the integrity of wireless LAN detection data collected in a wireless LAN environment in connection with a blockchain network through the above-described configuration, thereby verifying the integrity of the wireless LAN detection data. A fingerprint radio map can be generated based on LAN detection data. Hereinafter, each configuration within the radio map generating device 30 to realize this will be described.

The allocation unit 31 performs the function of allocating an authentication key to support integrity verification of wireless LAN detection data.

More specifically, the allocation unit 31 allocates an authentication key to support integrity verification of wireless LAN detection data to each of the data collection device 10 and the control device 20 in the specific area (a).

Here, the authentication key is generated as a private key and public key pair, and is allocated and stored to each of the data collection device 10 and the control device 20 in a specific area (a), and the data collection device 10 In the case of the public key, it can be additionally stored and managed in the control device 20.

In the case of this authentication key, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control device 20 is used to re-acquire the wireless LAN detection data.

That is, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control device 20 controls the control device 20 including its own private key and the public key of the data collection device 10. By generating a command and transmitting it to the data collection device 10, the wireless LAN detection data at the time the verification event occurred can be re-requested to the data collection device 10.

At this time, when a control command is received, the data collection device 10 verifies the legitimacy of the control command through its public key, and when the legitimacy of the control command is verified, it re-detects the wireless LAN signal according to the verified control command. Wireless LAN detection data is returned to the control device 20.

Here, the legitimacy of the control command can be verified by checking whether the public key in the control command matches the private key stored in the data collection device 10, and if the legitimacy is not verified, the control command is It can be ignored.

Meanwhile, in the case of the authentication key assigned to each of the data collection device 10 and the control device 20 in the specific area (a), it can be updated with a new authentication key after the verification event occurs for the purpose of strengthening security.

That is, when a verification event occurs, the allocation unit 31 updates the authentication key already assigned to each of the data collection device 10 and the control device 20 with a new authentication key, thereby providing information on the newly occurring verification event. Enables control commands based on the updated authentication key to be processed.

At this time, the allocation unit 31 may vary the operation of updating the authentication key according to the importance of each area, and accordingly, based on the predefined importance of the specific area (a), the number of occurrences of the verification event is set to a threshold number (e.g., 3). If the number of times is reached, the authentication key can be renewed only once a year.

For example, in areas with higher importance, the authentication key can be renewed when a smaller number of verification events occur. Conversely, in areas with higher importance, the authentication key can be renewed only after a greater number of verification events have occurred. It is possible.

The confirmation unit 32 performs a function of checking the wireless LAN detection data acquired by the control device 20.

More specifically, when a verification event occurs, the confirmation unit 32 confirms the wireless LAN detection data obtained from the data collection device 10 through a control command from the control device 20.

Here, the verification event is a previous transaction in which at least one of BSSID (Basic Service Set IDentifier) and SSID (Service Set IDentifier), which are wireless LAN identification information in the wireless LAN detection data received from the data collection device 10 at a specific period, is neighboring. This can occur when there is a change from the cycle.

When such a verification event occurs, the control device 20 can re-obtain wireless LAN detection data from the data collection device 10 that received it by transmitting a control command based on the authentication key to the data collection device 10.

That is, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control device 20 controls the control device 20 including its own private key and the public key of the data collection device 10. By generating a command and transmitting it to the data collection device 10, the wireless LAN detection data at the time the verification event occurred is re-obtained from the data collection device 10.

Meanwhile, when the wireless LAN detection data is re-acquired from the data collection device 10, the control device 20 creates a new block of the blockchain containing the corresponding wireless LAN detection data, and this new block includes the existing wireless LAN detection data. The hash value of the existing block created during the integrity verification process of LAN detection data is included.

Ultimately, the confirmation unit 32 confirms the wireless LAN detection data obtained from the data collection device 10 through a control command and generated as a new block of the blockchain from the control device 20.

Here, the new block includes the hash value of the existing block previously generated during the integrity verification process of the existing wireless LAN detection data.

The verification unit 33 performs the function of verifying the integrity of the wireless LAN detection data.

More specifically, when the wireless LAN detection data generated as a new block is confirmed by the control device 20, the verification unit 33 verifies the integrity through linkage with the blockchain network.

At this time, when the creation of a new block is confirmed, the verification unit 33 verifies (approvals) the legitimacy of the confirmed new block from at least some of the remaining participating nodes (b, c, d) of the block check network and then verifies it. The blockchain, including the new block, is shared with each participating node (a, b, c, d).

Ultimately, in one embodiment of the present invention, as the integrity of the wireless LAN detection data is verified through linkage with the blockchain network, BSSID (Basic Service Set IDentifier), which is wireless LAN identification information, and SSID included in the wireless LAN detection data. (Service Set IDentifier) can be effectively prevented from being forged or altered.

The generating unit 34 performs the function of generating a fingerprint radio map.

More specifically, when the integrity of the wireless LAN detection data is verified in connection with the blockchain network, the generator 34 generates a fingerprint radio map for the specific area (a) using the wireless LAN detection data whose integrity has been verified. I do it.

Ultimately, in creating a fingerprint radio map based on wireless LAN detection data collected in a wireless LAN environment, the integrity of the wireless LAN detection data is verified through linkage with the blockchain network, so the fingerprint radio map It can be seen that reliability and accuracy can be improved.

Meanwhile, it has been mentioned that it may be implemented in the form of a software module or hardware module executed by the processor of each component in the radio map generating device 30 described above, or may be implemented in the form of a combination of a software module and a hardware module. there is.

In this way, a software module, a hardware module, or a combination of a software module and a hardware module executed by a processor may be implemented as an actual hardware system (eg, a computer system).

Therefore, hereinafter, a hardware system 3000 that implements the radio map generating device 30 according to an embodiment of the present invention in hardware form will be described with reference to FIG. 5.

For reference, what will be described below is an example of each configuration in the radio map generating device 30 described above implemented as a hardware system 3000, and keep in mind that each configuration and its operation may be different from the actual system. It should be placed in .

As shown in FIG. 5, the hardware system 3000 according to an embodiment of the present invention has a configuration including a processor unit 3100, a memory interface unit 3200, and a peripheral device interface unit 3300. You can.

Each component within the hardware system 3000 may be a separate component or integrated into one or more integrated circuits, and each of these components may be combined by a bus system (not shown).

Here, in the case of a bus system, any one or more individual physical buses, communication lines/interfaces, and/or multi-drop or point connected by appropriate bridges, adapters, and/or controllers. It is an abstraction that represents point-to-point connections.

The processor unit 3100 communicates with the memory unit 3210 through the memory interface unit 3200 to perform various functions in the hardware system, thereby executing various software modules stored in the memory unit 3210. .

Here, the memory unit 3210 includes an allocation unit 31, a verification unit 32, a verification unit 33, and a generation unit 34, which are each component in the radio map generating device 30 described with reference to FIG. 4. It can be stored in the form of a software module, and other operating systems (OS) can be additionally stored.

For operating systems (e.g., I-OS, Android, Darwin, RTXC, LINUX, UNIX, OS , power management, etc.), and serves to facilitate communication between various hardware modules and software modules.

For reference, the memory unit 3210 may include a memory hierarchy including, but not limited to, a cache, main memory, and secondary memory. In the case of this memory hierarchy, for example, RAM (e.g., SRAM, It may be implemented through any combination of DRAM, DDRAM), ROM, FLASH, magnetic and/or optical storage devices (e.g., disk drives, magnetic tapes, compact disks (CDs), and digital video discs (DVDs), etc.).

The peripheral device interface unit 3300 serves to enable communication between the processor unit 3100 and peripheral devices.

Here, the peripheral device is intended to provide different functions to the hardware system 3000, and in one embodiment of the present invention, for example, a communication unit 3310 may be included.

Here, the communication unit 3310 performs the role of providing a communication function with other devices, and for this purpose, for example, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, and a codec ( CODEC) chipset, memory, etc., but is not limited thereto, and may include known circuits that perform this function.

Communication protocols supported by the communication unit 3310 include, for example, Wireless LAN (WLAN), Digital Living Network Alliance (DLNA), Wireless Broadband (Wibro), and World Interoperability for Microwave Access (Wimax). ), GSM (Global System for Mobile communication), CDMA (Code Division Multi Access), CDMA2000 (Code Division Multi Access 2000), EV-DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA) , HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), IEEE 802.16, Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced), broadband wireless mobile communication service ( Wireless Mobile Broadband Service: WMBS, Bluetooth, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra-Wideband), ZigBee, Near Field Communication: NFC), Ultrasound Communication (USC), Visible Light Communication (VLC), Wi-Fi, Wi-Fi Direct, etc. may be included. In addition, wired communication networks include wired LAN (Local Area Network), wired WAN (Wide Area Network), Power Line Communication (PLC), USB communication, Ethernet, serial communication, and optical/coaxial. Cables, etc. may be included, and are not limited to any protocols that can provide a communication environment with other devices.

Ultimately, in the hardware system 3000 according to an embodiment of the present invention, each component in the radio map generating device 30 stored in the form of a software module in the memory unit 3210 is executed by the processor unit 3100. By performing an interface with the communication unit 3310 through the memory interface unit 2200 and the peripheral device interface unit 3300 in the form of commands, the integrity of the wireless LAN detection data collected in the wireless LAN environment in connection with the blockchain network It is possible to create a fingerprint radio map based on wireless LAN detection data whose integrity has been verified.

As discussed above, according to the fingerprint positioning system and each configuration within the system according to an embodiment of the present invention, a fingerprint radio map is generated based on wireless LAN detection data collected in a wireless LAN environment. In doing so, the reliability and accuracy of the fingerprint radio map can be improved as the integrity of the wireless LAN detection data is verified through linkage with the blockchain network.

Below, we will continue to explain the fingerprint positioning system and the operational flow of each component within the system according to an embodiment of the present invention.

Figure 6 shows the operation flow in the fingerprint location determination system according to an embodiment of the present invention.

First, the radio map generating device 30 assigns an authentication key to support integrity verification of wireless LAN detection data to each of the data collection device 10 and the control device 20 in the specific area (a) (S11 -S12).

At this time, the authentication key is generated as a private key and public key pair, and is allocated and stored to each of the data collection device 10 and the control device 20 in a specific area (a), and the data collection device 10 In the case of the public key, it can be additionally stored and managed in the control device 20.

Furthermore, the control device 20 checks whether a verification event has occurred from the wireless LAN detection data received every cycle from the data collection device 10 (S13-S14).

At this time, the control device 20 determines that at least one of BSSID (Basic Service Set IDentifier) and SSID (Service Set IDentifier), which are wireless LAN identification information in the wireless LAN detection data received from the data collection device 10 at a specific period, is a neighbor. If there is a change from the previous cycle, it can be confirmed that a verification event has occurred.

Then, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control device 20 transmits an authentication key-based control command to the data collection device 10, thereby Reacquire wireless LAN detection data from the received data collection device 10 (S14-S15-S16).

At this time, the control device 20 generates a control command including its own private key and the public key of the data collection device 10 and transmits it to the data collection device 10, thereby Sensing data can be re-requested to the data collection device 10.

In this case, when a control command is received, the data collection device 10 verifies the legitimacy of the control command through its public key, and when the legitimacy of the control command is verified, the wireless LAN signal is re-detected according to the verified control command. The wireless LAN detection data is returned to the control device 20.

Here, the legitimacy of the control command can be verified by checking whether the public key in the control command matches the private key stored in the data collection device 10, and if the legitimacy is not verified, the control command is It can be ignored.

For reference, if the control device 20 determines that the data collection device 10 is moving at the time the verification event is confirmed, it transmits a control command to stop movement or order a return to the point where the verification event was confirmed. By doing so, wireless LAN detection data can be re-obtained from the data collection device 10.

This is to ensure the identity of the wireless LAN detection data for which the verification event is confirmed and the wireless LAN detection data re-obtained from the data collection device 10.

Subsequently, when the wireless LAN detection data is re-obtained from the data collection device 10, the control device 20 and the management unit 23 create a new block of the blockchain containing the wireless LAN detection data (S17). .

At this time, the new block includes the hash value of the existing block previously generated during the integrity verification process of the existing wireless LAN detection data.

Furthermore, when the wireless LAN detection data generated as a new block is confirmed by the control device 20, the radio map generating device 30 verifies its integrity through linkage with the blockchain network (S18-S19).

At this time, when the creation of a new block is confirmed, the radio map generator 30 receives the legitimacy of the confirmed new block from at least some of the remaining participating nodes (b, c, d) of the block check network. Afterwards, the blockchain, including the verified new blocks, is shared with each participating node (a, b, c, d).

Afterwards, when the integrity of the wireless LAN detection data is verified in connection with the blockchain network, the radio map generator 30 generates a fingerprint radio map for the specific area (a) using the wireless LAN detection data whose integrity has been verified. Do it (S20).

After completing the description of the operation flow in the fingerprint positioning system according to an embodiment of the present invention, the description of the operation flow in the control device 20 continues.

Figure 7 shows the operation flow in the control device 20 according to an embodiment of the present invention.

First, the confirmation unit 21 checks whether a verification event has occurred from the wireless LAN detection data received every cycle from the data collection device 10 (S21-S22).

At this time, the confirmation unit 21 determines that at least one of BSSID (Basic Service Set IDentifier) and SSID (Service Set IDentifier), which are wireless LAN identification information in the wireless LAN detection data received from the data collection device 10 at a specific period, is a neighbor. If there is a change from one previous cycle, it is confirmed that a verification event has occurred.

Then, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control unit 22 transmits an authentication key-based control command to the data collection device 10 and receives it. Reacquire wireless LAN detection data from one data collection device 10 (S23-S24).

Here, the authentication key is a private key and public key pair generated by the radio map generating device 30, and is stored and managed by being allocated to the data collection device 10 and the control device 20 of the specific area (a), respectively. , the public key of the data collection device 10 may be additionally stored and managed in the control device 20.

Accordingly, the control unit 22 generates a control command including its private key and the public key of the data collection device 10 and transmits it to the data collection device 10, thereby detecting the wireless LAN at the time the verification event occurs. Data can be re-requested to the data collection device 10.

At this time, when a control command is received, the data collection device 10 verifies the legitimacy of the control command through its public key, and when the legitimacy of the control command is verified, it re-detects the wireless LAN signal according to the verified control command. Wireless LAN detection data is returned to the control device 20.

Here, the legitimacy of the control command can be verified by checking whether the public key in the control command matches the private key stored in the data collection device 10, and if the legitimacy is not verified, the control command is It can be ignored.

Then, when the wireless LAN detection data is re-acquired from the data collection device 10, the management unit 23 creates a new block of the blockchain containing the wireless LAN detection data (S25).

At this time, the new block includes the hash value of the existing block previously generated during the integrity verification process of the existing wireless LAN detection data.

Meanwhile, in relation to this, when the creation of a new block is confirmed, the radio map generator 30 verifies the legitimacy of the new block confirmed by at least some of the remaining participating nodes (b, c, d) of the block check network. After receiving (approval), the blockchain including the verified new block is shared with each participating node (a, b, c, d).

After completing the description of the operation flow in the control device 20 according to an embodiment of the present invention, the description of the operation flow in the radio map generating device 30 will continue.

Figure 8 shows the operational flow of the radio map generating device 30 according to an embodiment of the present invention.

First, the allocation unit 31 allocates an authentication key to support integrity verification of wireless LAN detection data to each of the data collection device 10 and the control device 20 in the specific area (a) (S31).

Here, the authentication key is generated as a private key and public key pair, and is allocated and stored to each of the data collection device 10 and the control device 20 in a specific area (a), and the data collection device 10 In the case of the public key, it can be additionally stored and managed in the control device 20.

In the case of this authentication key, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control device 20 is used to re-acquire the wireless LAN detection data.

That is, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control device 20 controls the control device 20 including its own private key and the public key of the data collection device 10. By generating a command and transmitting it to the data collection device 10, the wireless LAN detection data at the time the verification event occurred can be re-requested to the data collection device 10.

At this time, when a control command is received, the data collection device 10 verifies the legitimacy of the control command through its public key, and when the legitimacy of the control command is verified, it re-detects the wireless LAN signal according to the verified control command. Wireless LAN detection data is returned to the control device 20.

Here, the legitimacy of the control command can be verified by checking whether the public key in the control command matches the private key stored in the data collection device 10, and if the legitimacy is not verified, the control command is It can be ignored.

Then, when a verification event occurs, the confirmation unit 32 confirms the wireless LAN detection data obtained from the data collection device 10 through a control command from the control device 20 (S32).

Here, the verification event is a previous transaction in which at least one of BSSID (Basic Service Set IDentifier) and SSID (Service Set IDentifier), which are wireless LAN identification information in the wireless LAN detection data received from the data collection device 10 at a specific period, is neighboring. This can occur when there is a change from the cycle.

When such a verification event occurs, the control device 20 can re-obtain wireless LAN detection data from the data collection device 10 that received it by transmitting a control command based on the authentication key to the data collection device 10.

That is, when it is confirmed that a verification event has occurred from the wireless LAN detection data received from the data collection device 10, the control device 20 controls the control device 20 including its own private key and the public key of the data collection device 10. By generating a command and transmitting it to the data collection device 10, the wireless LAN detection data at the time the verification event occurred is re-obtained from the data collection device 10.

Meanwhile, when the wireless LAN detection data is re-acquired from the data collection device 10, the control device 20 creates a new block of the blockchain containing the corresponding wireless LAN detection data, and this new block includes the existing wireless LAN detection data. The hash value of the existing block created during the integrity verification process of the LAN detection data is included.

Ultimately, the confirmation unit 32 confirms the wireless LAN detection data obtained from the data collection device 10 through a control command and generated as a new block of the blockchain from the control device 20.

Here, the new block includes the hash value of the existing block previously generated during the integrity verification process of the existing wireless LAN detection data.

Furthermore, when the wireless LAN detection data generated as a new block is confirmed by the control device 20, the verification unit 33 verifies the integrity through linkage with the blockchain network (S33-S34).

At this time, when the creation of a new block is confirmed, the verification unit 33 verifies (approvals) the legitimacy of the confirmed new block from at least some of the remaining participating nodes (b, c, d) of the block check network and then verifies it. The blockchain, including the new block, is shared with each participating node (a, b, c, d).

As such, in one embodiment of the present invention, as the integrity of the wireless LAN detection data is verified through linkage with the blockchain network, the Basic Service Set IDentifier (BSSID), which is wireless LAN identification information, and SSID included in the wireless LAN detection data. (Service Set IDentifier) can be effectively prevented from being forged or altered.

Afterwards, when the integrity of the wireless LAN detection data is verified in connection with the blockchain network, the generator 34 generates a fingerprint radio map for the specific area (a) using the wireless LAN detection data whose integrity has been verified ( S35).

As discussed above, according to the operation method of each component in the fingerprint positioning system according to an embodiment of the present invention, a fingerprint radio map is generated based on wireless LAN detection data collected in a wireless LAN environment. In doing so, the reliability and accuracy of the fingerprint radio map can be improved as the integrity of the wireless LAN detection data is verified through linkage with the blockchain network.

Meanwhile, implementations of the functional operations and subjects described in this specification are implemented as digital electronic circuits, computer software, firmware, or hardware including the structure disclosed in this specification and its structural equivalents, or one or more of these. It can be implemented by combining. Implementations of the subject matter described herein may comprise one or more computer program products, that is, one or more modules of computer program instructions encoded on a tangible program storage medium for execution by or for controlling the operation of a processing system. It can be implemented.

The computer-readable medium may be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter that affects a machine-readable radio wave signal, or a combination of one or more of these.

In this specification, the term 'system' or 'device' includes all instruments, devices, and machines for processing data, including, for example, a programmable processor unit, a computer, or a multi-processor unit or computer. In addition to the hardware, the processing system may include code that forms an execution environment for computer programs on demand, such as code making up processor unit firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of these. there is.

A computer program (also known as a program, software, software application, script, or code) may be written in any form of a programming language, including compiled, interpreted, a priori, or procedural languages, as a stand-alone program, or as a module. It can be deployed in any form, including components, subroutines, or other units suitable for use in a computer environment. Computer programs do not necessarily correspond to files in a file system. A program may be stored within a single file that serves the requested program, or within multiple interacting files (e.g., files storing one or more modules, subprograms, or portions of code), or as part of a file that holds other programs or data. (e.g., one or more scripts stored within a markup language document). The computer program may be deployed to run on a single computer or multiple computers located at one site or distributed across multiple sites and interconnected by a communications network.

Meanwhile, computer-readable media suitable for storing computer program instructions and data include semiconductor memory devices such as EPROM, EEPROM, and flash memory devices, magnetic disks such as internal hard disks and external disks, magneto-optical disks, and CDs. -Can include all forms of non-volatile memory, media, and memory devices, including ROM and DVD-ROM disks. The processor unit and memory may be supplemented by, or integrated into, special-purpose logic circuits.

Implementations of the subject matter described herein may include back-end components, such as a data server, middleware components, such as an application server, or, e.g., a web browser or graphical user through which a purchaser may interact with an implementation of the subject matter described herein. It may be implemented in a front-end component, such as a client computer with an interface, or in a computing system that includes any combination of one or more of such back-end, middleware, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication, such as a telecommunications network.

Although this specification contains details of numerous specific implementations, these should not be construed as limitations on the scope of any invention or what may be claimed, but rather as descriptions of features that may be unique to particular embodiments of particular inventions. It must be understood. Likewise, certain features described herein in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination. Furthermore, although features may be described as operating in a particular combination and initially claimed as such, one or more features from a claimed combination may in some cases be excluded from that combination, and the claimed combination may be a sub-combination. It can be changed to a variant of a sub-combination.

Additionally, although operations are depicted in the drawings in a specific order herein, this should not be understood to mean that such operations must be performed in the specific order or sequential order shown or that all illustrated operations must be performed to obtain desirable results. Can not be done. In certain cases, multitasking and parallel processing may be advantageous. Additionally, the separation of various system components in the above-described embodiments should not be construed as requiring such separation in all embodiments, and the described program components and systems may generally be integrated together into a single software product or packaged into multiple software products. You must understand that you can

As such, this specification is not intended to limit the invention to the specific terms presented. Accordingly, although the present invention has been described in detail with reference to the above-described examples, those skilled in the art may make modifications, changes, and variations to the examples without departing from the scope of the present invention. The scope of the present invention is indicated by the claims described below rather than the detailed description above, 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. do.

According to the radio map generating device and operating method of the present invention, in generating a fingerprint radio map based on wireless LAN detection data collected in a wireless LAN environment, wireless LAN detection data is generated in connection with a blockchain network. In that the integrity of the device can be verified, by overcoming the limitations of existing technology, the possibility of not only using the related technology but also marketing or selling the applied device is sufficient, and it is clearly feasible in reality, so it can be implemented industrially. It is an invention that has potential for use.

10: Data collection device
20: Control device
21: confirmation unit 22: control unit
23: Management
30: Radio map generator
31: Allocation unit 32: Confirmation unit
33: verification unit 34: generation unit

Claims (12)

A processor that processes operations related to generating a fingerprint radio map; and
It includes a memory storing at least one instruction to be executed through the processor,
The at least one command is:
An allocation command that allocates an authentication key to each data collection device and control device in a specific area;
A confirmation command to confirm from the control device the wireless LAN detection data obtained from the data collection device based on the authentication key; and
A radio map generating device comprising a verification command for verifying the wireless LAN detection data in connection with a blockchain network. According to claim 1,
The at least one command is:
A radio map generating device further comprising a creation command for generating a fingerprint radio map for the specific area based on the verified wireless LAN detection data. According to claim 1,
The control device is,
When it is confirmed that a verification event has occurred from the wireless LAN detection data received periodically from the data collection device, the wireless LAN detection data is re-acquired from the data collection device through a control command based on the authentication key. Radio map generator. According to claim 3,
The wireless LAN detection data is,
At least one of BSSID (Basic Service Set IDentifier) and SSID (Service Set IDentifier), which are wireless LAN identification information in the specific area, is included,
The verification event is,
A radio map generating device, characterized in that it occurs when at least one of the BSSID and the SSID in a specific period changes from a previous period adjacent to the specific period. According to claim 3,
The at least one command is:
When the verification event occurs, the radio map generating device further includes an update command for updating an authentication key previously assigned to each of the data collection device and the control device. ◈Claim 6 was abandoned upon payment of the setup registration fee.◈ According to claim 5,
The renewal order is:
A radio map generating device characterized in that the pre-assigned authentication key is updated when the number of occurrences of the verification event reaches a threshold number according to the importance pre-defined for the specific area. According to claim 3,
The control device is,
If the data collection device is confirmed to be moving at the time the verification event is confirmed, a control command is transmitted to stop movement or to return to the point where the verification event was confirmed to re-acquire wireless LAN detection data. A radio map generating device characterized in that. According to claim 1,
The specific area is,
It is one of the many participating nodes that make up the blockchain network,
The verification command is,
When a new block of the blockchain generated in relation to the wireless LAN detection data is verified by the remaining participating nodes, a radio map generating device characterized in that the blockchain including the new block is shared with the plurality of participating nodes. An allocation step of allocating an authentication key to each data collection device and control device in a specific area;
A confirmation step of confirming wireless LAN detection data obtained from the data collection device based on the authentication key from the control device; and
A method of operating a radio map generating device, comprising a verification step of verifying the wireless LAN detection data in connection with a blockchain network. ◈Claim 10 was abandoned upon payment of the setup registration fee.◈ According to clause 9,
The above method is,
A method of operating a radio map generating device, further comprising generating a fingerprint radio map for the specific area based on the verified wireless LAN detection data. ◈Claim 11 was abandoned upon payment of the setup registration fee.◈ According to clause 9,
The control device is,
When it is confirmed that a verification event has occurred from the wireless LAN detection data received periodically from the data collection device, the wireless LAN detection data is re-acquired from the data collection device through a control command based on the authentication key. How to operate a radio map generator. ◈Claim 12 was abandoned upon payment of the setup registration fee.◈ According to claim 11,
The wireless LAN detection data is,
At least one of BSSID (Basic Service Set IDentifier) and SSID (Service Set IDentifier), which are wireless LAN identification information in the specific area, is included,
The verification event is,
A method of operating a radio map generating device, characterized in that it occurs when at least one of the BSSID and the SSID in a specific period changes from a previous period adjacent to the specific period.