Fixed terminal device, control method, and control program

Abstract

To provide a fixing terminal device, a control method, and a control program, capable of transmitting detection data even if a communication destination is in a communicable area of a private network.SOLUTION: A fixing terminal device 100 is used within a range where it can be communicated with first and second radio communication networks which are different from each other. The fixing terminal device 100 has a sensor device, first and second read-out parts 130 and 140, a selection part 601, and a transmission part 150. Each of the first and second read-out parts reads out authentication information for being connected to each of the first and second radio communication networks. The selection part selects that transmission data based on data from the sensor device is transmitted by any one of the first and second radio communication networks. The transmission part transmits the transmission data by using the authenticated radio communication network after the radio communication network selected by the selection part is authenticated by using the authentication information.SELECTED DRAWING: Figure 3

Description

[[Technical Field]]

[0001] The present invention relates to a fixed terminal device, a control method, and a control program. [[Background Art]]

[0002] In recent years, with the increasing interest in contents such as audio and video on the Internet, the amount of data transmitted through wireless communication networks has increased rapidly. The rapid increase in data volume in such wireless communication networks is backed by progress in technological development related to wireless communication systems. For example, in carrier communication using mobile terminals such as smartphones and tablets, a technology for switching communication carriers in accordance with the congestion status and communication quality of base stations, or the data volume of contents is known (for example, see Patent Document 1 below).

[0003] In addition, a mobile terminal is a communication device premised on movement. When users concentrate in a part of a communicable area, traffic in the communicable area may increase, and a sufficient communication speed may not be obtained. In such a case, a wireless communication device that switches the connection to another carrier based on the communication environment (for example, the number of connected base stations) is known (for example, see Patent Document 2 below).

[0004] On the other hand, wireless communication using private networks has traditionally been used in limited areas, such as within a single building or on a property. Although the communication area of ​​private network wireless communication is limited to a small area, it can transmit a large amount of data and easily achieve sufficient communication speed. Also, compared to carrier communication, it is less susceptible to unauthorized access within the communication area, thus maintaining a high level of communication security. Therefore, private network wireless communication can be used in companies to transmit detection data (e.g., video or images) from sensors (e.g., surveillance cameras) that monitor equipment in a factory to a display device for an administrator located elsewhere. In particular, the fifth-generation wireless communication system (5G) can take advantage of its characteristics of high speed, large capacity, ultra-low latency, and numerous simultaneous connections when transmitting this detection data. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2012-165154 [Patent Document 2] Japanese Patent Publication No. 2012-186791 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, with private network wireless communication, if the factory manager, who is the communication destination, is outside the private network's coverage area due to being out or returning home, it becomes difficult to send detection data to the manager. Also, in the case of a private network (local network), wireless communication is limited to destinations within its coverage area, and in order to communicate with destinations outside the coverage area, it is necessary to connect to another network via the private network. In such cases, multiple processes are required before a connection can be established with the destination, which may lead to a decrease in reliability. In particular, when using the 5G system, it may not be possible to take advantage of the benefits of ultra-low latency and high speed.

[0007] This invention has been made in view of the above-mentioned problems. Therefore, the object of this invention is to provide a fixed terminal device, a control method, and a control program that can transmit detection data even when the communication destination is outside the communication area of ​​a private network. ru. [Means for solving the problem]

[0008] The above-mentioned problems of the present invention are solved by the following means.

[0009] (1) A fixed terminal device used within a range capable of communicating with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, the fixed terminal device comprising: a sensor device; a generation unit that generates notification data based on detection data from the sensor device; a selection unit that selects whether to transmit the generated notification data over the first wireless communication network or the second wireless communication network; and a transmission unit that transmits the notification data using the wireless communication network selected by the selection unit, The generation unit sets a confidentiality level according to the type of notification data, and the generation unit sets a high confidentiality level when the notification data is data acquired by a visible light camera. The selection unit selects the generated notification data The aforementioned A fixed terminal device that selects a wireless communication network to transmit the notification data according to the level of confidentiality. (2) A fixed terminal device used within a range capable of communicating with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, wherein the fixed terminal device comprises a sensor device, a generation unit that generates notification data based on detection data from the sensor device, a selection unit that selects whether to transmit the generated notification data over the first wireless communication network or the second wireless communication network, and a transmission unit that transmits the notification data using the wireless communication network selected by the selection unit, wherein the generation unit sets a confidentiality level according to the type of notification data, the generation unit sets a low confidentiality level if the notification data is data acquired by an infrared camera, voice information, or text information, and the selection unit selects a wireless communication network to transmit the notification data according to the confidentiality level of the generated notification data. Fixed terminal device. ( 3 The fixed terminal device further comprises a first reading unit for reading authentication information for connecting to the first wireless communication network, and a second reading unit for reading authentication information for connecting to the second wireless communication network, and the transmitting unit transmits the notification data using the authenticated wireless communication network after being authenticated using the authentication information, as described in (1) above. or (2) Fixed terminal device as described above.

[0010] ( 4 ) The first wireless communication network is a private wireless line, and the second wireless communication network is a wireless line of a mobile communications carrier or a public wireless line, as described in (1) above. (3) one of the above Fixed terminal device as described above.

[0011] ( 5 The first wireless communication network and the second wireless communication network comply with the same communication standard as described above (1) (3) any one Fixed terminal device as described above.

[0012] ( 6 ) The first wireless communication network and the second wireless communication network are wireless communication networks that satisfy the requirements for a fifth-generation wireless communication system, as described in (1) above. 4 A fixed terminal device as described in any one of the following.

[0017] ( 7 ) The amount of information in the notification data transmitted using the second wireless communication network is less than the amount of information in the notification data transmitted using the first wireless communication network, as described above ( 4 Fixed terminal device as described above.

[0020] ( 8 ) The content of the transmission data is set according to the wireless communication network selected by the selection unit, from (1) to ( 7 ) A fixed terminal device as described in any one of the following.

[0021] ( 9 ) further comprising an abnormality detection unit that detects an abnormality in the detection target of the sensor device, wherein when the abnormality detection unit detects an abnormality, it generates and transmits alarm information according to the wireless communication network selected by the selection unit, the fixed terminal device according to any one of (1) to( 8 ) above.

[0023] ( 10 ) A control method for a fixed terminal device used in an area where communication is possible with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, comprising: a detection step of detecting a detection target by a sensor device; a generation step of generating notification data based on detection data from the sensor device; a selection step of selecting whether to transmit the notification data generated in the generation step via the first wireless communication network or the second wireless communication network; and a transmission step of transmitting the notification data using the wireless communication network selected in the selection step, In the generation step, a confidentiality level is set according to the type of notification data, and if the notification data is data acquired by a visible light camera, the confidentiality level is set to a higher level. wherein in the selection step, the The aforementioned wireless communication network for transmitting the notification data is selected according to a security level of the generated notification data. (11) A control method for a fixed terminal device used within a range that can communicate with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, comprising: a detection step of detecting an object to be detected by a sensor device; a generation step of generating notification data based on detection data from the sensor device; a selection step of selecting whether to transmit the notification data generated in the generation step over the first wireless communication network and the second wireless communication network; and a transmission step of transmitting the notification data using the wireless communication network selected in the selection step, wherein in the generation step, a confidentiality level is set according to the type of notification data, and if the notification data is data acquired by an infrared camera, voice information, or text information, the confidentiality level is set to a lower level, and in the selection step, a wireless communication network is selected to transmit the notification data according to the confidentiality level of the generated notification data. ( 12 ) further comprising a reading step of reading authentication information for connecting to the wireless communication network selected in the selection step, wherein the authentication information is for connecting to the first wireless communication network or the second wireless communication network, wherein in the transmission step, after the wireless communication network selected in the selection step is authenticated using the authentication information, the notification data is transmitted using the authenticated wireless communication network, the control method according to (10) or (11) above.

[0024] ( 13 ) the first wireless communication network is a private wireless line, and the second wireless communication network is a wireless line of a mobile communication carrier or a public wireless line, the above( 10)from( 12 The control method described in ).

[0027] ( 14 )the above( 10 )from( 13 A control program that causes a computer to perform the processing included in any one of the control methods described in item ) [Effects of the Invention]

[0028] According to the present invention, the system is configured to select one of several different wireless communication networks and transmit data based on data from a sensor device using the selected wireless communication network. Therefore, even if the communication destination is outside the communication area of ​​one wireless communication network (e.g., a private network), detection data can be transmitted to the communication destination by selecting another wireless communication network (e.g., a carrier communication network). [Brief explanation of the drawing]

[0029] [Figure 1] This is a conceptual diagram illustrating the overview of the monitoring system in the first embodiment. [Figure 2] This is a schematic diagram illustrating a case where communication is performed using a carrier 5G wireless communication network. [Figure 3] Figure 1 is a schematic block diagram illustrating the hardware configuration of the fixed terminal device shown. [Figure 4] Figure 3 is a functional block diagram illustrating the main functions of the control unit shown. [Figure 5] Figure 1 is a flowchart illustrating the processing procedure for the control method of the fixed terminal device shown. [Figure 6A] This is a schematic diagram illustrating images of piping equipment captured by a visible light camera of a sensor device. [Figure 6B] This is a schematic diagram illustrating images of a gas leak captured by an infrared camera of a sensor device. [Figure 7]This diagram illustrates the presence or absence of processing (mosaic processing) on ​​the SIM used for wireless communication and the images from the visible light camera during each time period. [Figure 8] This is a schematic diagram illustrating a mosaic-processed image from a visible light camera. [Figure 9] This is a schematic diagram illustrating the SIM card used for wireless communication, along with the video size and frame rate, for each time period. [Figure 10] This schematic diagram illustrates the types of SIM cards used for wireless communication and the content of notifications, depending on the level of confidentiality. [Figure 11] This schematic diagram illustrates the SIM card used for wireless communication and the notification content, depending on the sensor being driven. [Figure 12] This flowchart illustrates an overview of the processing procedure for the control method of a fixed terminal device in the second embodiment. [Figure 13] This is a functional block diagram illustrating the main configuration of the control unit in the third embodiment. [Figure 14] This flowchart illustrates an overview of the processing procedure for the control method of a fixed terminal device in the third embodiment. [Figure 15] This diagram illustrates how to configure the notification content for administrators depending on the SIM card used for wireless communication. [Figure 16] This flowchart illustrates how to configure notification content for administrators depending on the SIM card used for wireless communication. [Figure 17] This is a functional block diagram illustrating the main configuration of the control unit in the fourth embodiment. [Figure 18] This flowchart illustrates an overview of the processing procedure for the control method of a fixed terminal device in the fourth embodiment. [Figure 19] This is a functional block diagram illustrating the main configuration of the control unit in the fifth embodiment. [Figure 20] This flowchart illustrates an overview of the processing procedure for the control method of a fixed terminal device in the fifth embodiment. [Modes for carrying out the invention]

[0030] Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same elements are denoted by the same reference numerals, and redundant explanations are omitted. Also, the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios.

[0031] (First Embodiment) Figure 1 is a conceptual diagram illustrating the overview of the monitoring system 10 in the first embodiment, and Figure 2 is a schematic diagram illustrating the case where communication is performed using a carrier 5G wireless communication network. Carrier 5G is the fifth-generation wireless communication system (5G) provided nationwide by mobile communication carriers. In the following, the explanation will mainly use the carrier 5G wireless communication network as an example, but it is not limited to carrier 5G; existing fourth-generation mobile communication systems (hereinafter referred to as "4G"), third-generation mobile communication systems (hereinafter referred to as "3G") carrier communication networks, or public wireless lines may also be used.

[0032] As shown in Figure 1, the monitoring system 10 has a fixed terminal device 100 and a display device 200, and is a system for monitoring abnormalities (e.g., gas leaks) in detection targets (e.g., piping equipment) within a factory or plant with a large site. A fixed terminal device 100, which is a device that detects abnormalities in the detection target, is placed near the detection target. In Figure 1, only one fixed terminal device 100 is shown for the sake of simplicity, but multiple fixed terminal devices may be appropriately placed depending on the scale of the detection target and the detection range of the fixed terminal device 100. As will be described in detail below, the fixed terminal device 100 in this embodiment is an edge device that can switch between and use multiple SIMs (Subscriber Identity Modules). The fixed terminal device 100 may be, for example, a surveillance camera that monitors the detection target. In this case, the placement of the surveillance camera is adjusted so that the detection target is included in the field of view of the surveillance camera.

[0033] Inside the factory, a base station 300 for private 5G (also referred to as "local 5G") that satisfies the 5G specifications (for private 5G and carrier 5G, the specification "IMT-2020" stipulated by the International Telecommunication Union (ITU)) is installed. Accordingly, the fixed terminal device 100 can use the private 5G wireless communication network within the communicable area A1.

[0034] Unlike carrier 5G, private 5G is a wireless communication system (self-operated wireless line) used for communication by smartphones, personal computers, tablet terminals, and the like, in specific areas such as limited living areas, offices, factories, and plants. In the present embodiment, the fixed terminal device 100 can communicate, via the private 5G wireless communication network, with a display device 200 installed in a centralized monitoring room located at a position distant from the fixed terminal device 100.

[0035] The fixed terminal device 100 transmits notification data and alarm information to the display device 200. As will be described later, the notification data is video data, audio data, or text data based on detection data obtained by detecting a detection target with a sensor of a sensor device. Further, the alarm information is information for notifying an administrator of the detection target of an abnormality related to the detection target. The display device 200 is, for example, a personal computer, and has a function of receiving video data, audio data, and text data from the fixed terminal device 100 and reproducing (displaying) the same.

[0036] Further, in addition to the private 5G base station 300, a carrier 5G base station 400 is installed inside the factory. Accordingly, the fixed terminal device 100 can use the carrier 5G wireless communication network within the communicable area A2. For example, the communicable areas A1 and A2 partially overlap and have different overall sizes (A1 < A2). The fixed terminal device 100 connects to the private 5G wireless communication network via the carrier 5G wireless communication network It is possible to communicate with a destination outside the communication area A1 of the workpiece. Note that while communication areas A1 and A2 are of different sizes, they do not necessarily need to overlap. Thus, the fixed terminal device 100 can be used within a range where it can communicate with both the private 5G wireless communication network and the carrier 5G wireless communication network.

[0037] As shown in Figure 2, the communication destination of the fixed terminal device 100 may be, for example, the mobile phone 500 of the administrator who manages the detection target. The carrier 5G wireless communication network conforms to the same communication standards as the private 5G wireless communication network. Both private 5G and carrier 5G are wireless communication networks that satisfy the "IMT-2020" standard set by the International Telecommunication Union (ITU).

[0038] In this embodiment, the fixed terminal device 100 transmits notification data using either a private 5G or a carrier 5G wireless communication network by selecting a SIM card (hereinafter also simply referred to as "SIM"). The SIM card for private 5G records authentication information (first authentication information), such as a subscriber identification number for identifying the subscriber within a specific area and an encrypted authentication key.

[0039] Furthermore, SIM cards for carrier 5G services record authentication information (secondary authentication information), including the International Mobile Subscriber Identity (IMSI), an encrypted authentication key, and carrier identification information to identify the telecommunications carrier.

[0040] In the examples shown in Figures 1 and 2, the system is configured to use a private 5G wireless communication network when SIM1 is selected, while using a carrier 5G wireless communication network when SIM2 is selected.

[0041] In a private 5G wireless communication network, the connection status of multiple terminal devices, including a fixed terminal device 100, is managed at a base station 300. By using a SIM1 separate from the carrier 5G SIM2, it operates within a limited communication area A1. Therefore, it is less susceptible to external noise, avoiding "difficulty connecting" and degradation of communication quality, thereby improving communication stability and confidentiality. Compared to carrier 5G, it also has the advantage of increasing the amount of data transmitted and the number of simultaneous connections, as well as low latency. Furthermore, the wireless communication network can be customized during design, taking into account the constraints of uplink and downlink communication speeds.

[0042] On the other hand, carrier 5G wireless communication networks have the advantage of high base station density and wide coverage area, with virtually no restrictions on the communication area. Furthermore, phone calls are more reliable and call quality is stable. In other words, calls have a longer range and are more immediate. Regarding calls, even if equipment resources are downgraded from 4G to 3G, voice calls are prioritized. Also, voice-enabled SIMs have individual IP (Internet Protocol) addresses associated with their phone numbers. For data SIMs, services are the norm, downloads are prioritized, and since the receiving base station connects to public wireless networks, including those provided by telecommunications carriers, security is less guaranteed.

[0043] Figure 3 is a schematic block diagram illustrating the hardware configuration of the fixed terminal device 100 shown in Figure 1, and Figure 4 is a functional block diagram illustrating the main functions of the control unit 110 shown in Figure 2.

[0044] As shown in Figure 3, the fixed terminal device 100 includes a control unit 110, a sensor device 120, a first readout unit 130, a second readout unit 140, and a communication unit 150. These components are connected to each other via an internal bus 101 so that they can communicate with one another.

[0045] The control unit 110 is a computer and includes a CPU (Central Processing Unit) 111, RAM (Random Access Memory) 112, ROM (Read Only Memory) 113, and an auxiliary storage unit 114.

[0046] The CPU 111 executes programs such as the OS (Operating System) and control programs loaded into the RAM 112 to control the operation of the fixed terminal device 100. The control programs are pre-stored in the ROM 113 or auxiliary storage unit 114. The RAM 112 stores data that is temporarily generated by the processing of the CPU 111. The ROM 113 stores programs executed by the CPU 111, as well as data and parameters used for program execution. The auxiliary storage unit 114 may include, for example, an HDD (Hard Disk Drive) or an SSD (Solid State Drive).

[0047] The sensor device 120 detects the object to be detected and outputs detection data. In this embodiment, the sensor device 120 has a visible light camera and an infrared camera (multiple sensors) and photographs the piping equipment as the object to be detected. The infrared camera is sensitive to a specific gas having a predetermined absorption wavelength, for example, supplied by the piping equipment of a factory. The video data from the visible light camera and the infrared camera is transmitted as detection data to the control unit 110 (data processing unit 602 in Figure 4). In addition to the visible light camera and the infrared camera, the sensor device 120 may also have, for example, a microphone, thermometer, hygrometer, barometer, etc.

[0048] The first readout unit 130 reads out first authentication information for connecting to a private 5G wireless communication network (first wireless communication network). The first authentication information is recorded in SIM1.

[0049] Furthermore, the second reading unit 140 reads out second authentication information for connecting to the carrier 5G wireless communication network (second wireless communication network). The second authentication information is recorded in SIM2.

[0050] The communication unit 150 communicates with base station 300 using first authentication information, or with base station 400 using second authentication information. The communication unit 150 includes a receiving unit that receives radio signals transmitted from each base station 300, 400, and a transmitting unit that transmits notification data to each base station 300, 400, and performs communication corresponding to private 5G or carrier 5G services. The communication unit 150, for example, uses Code Division Multiple Access (CDMA) or Orthogonal Frequency Division Multiple Access (OFDMA) It is possible to communicate according to Multiple Access.

[0051] As shown in Figure 4, the control unit 110 functions as a SIM selection unit 601 and a data processing unit 602. The functions of the SIM selection unit 601 and the data processing unit 602 are realized by the CPU 111 executing a control program.

[0052] The SIM selection unit 601 selects the SIM to be used for wireless communication. This selects either a private 5G or a carrier 5G wireless communication network. The specific method for selecting the SIM is described below.

[0053] The data processing unit 602 processes the detection data output from the sensor device 120 according to the SIM used for wireless communication. More specifically, when SIM2 (carrier 5G wireless communication network) is selected by the SIM selection unit 601, the data processing unit 602 processes the detection data output from the sensor device 120. In addition, the video data output from the sensor device 120 is processed to generate notification data, which is then output to the communication unit 150. On the other hand, if SIM1 (private 5G wireless communication network) is selected by the SIM selection unit 601, the data processing unit 602 outputs the video data as notification data to the communication unit 150 without processing it.

[0054] The data processing unit 602 can, for example, perform encryption or mosaic processing on video data. Furthermore, the data processing unit 602 can convert video data into audio or text data by generating audio and text information based on the video data. The audio information is audio representations of various information related to the detected video. The text information is text (documentation) representations of various information related to the detected video. For example, the audio and text information may include various information necessary for administrators to take action when an anomaly occurs in the detected object, such as the type of anomaly, the time of occurrence, information about the area where the anomaly occurred, information about the surveillance camera (fixed terminal device 100) that captured the anomaly, and information about the camera's shooting angle. The type of anomaly can be estimated, for example, based on images from multiple infrared cameras captured in the past, using pattern recognition technology, machine learning, etc. The processed data is output to the communication unit 150 as notification data.

[0055] (Control method for fixed terminal device 100) Figure 5 is a flowchart illustrating the processing procedure for the control method of the fixed terminal device 100 shown in Figure 1. Each process in the flowchart shown in the figure is realized by the CPU 111 executing a control program. Figure 6A is a schematic diagram illustrating an image of piping equipment taken by the visible light camera of the sensor device 120, and Figure 6B is a schematic diagram illustrating an image of a gas leak taken by the infrared camera of the sensor device 120. Figure 7 is a diagram illustrating the presence or absence of processing (mosaic processing) on ​​the SIM used for wireless communication and the visible light camera image for each time period, and Figure 8 is a schematic diagram illustrating a mosaic-processed visible light camera image. Figure 9 is a schematic diagram illustrating the SIM used for wireless communication, the image size, and the frame rate for each time period.

[0056] As shown in Figure 5, first, the target to be detected is detected (step S101). As shown in Figures 6A and 6B, the control unit 110 controls the sensor device 120 to photograph, for example, the piping equipment P, which is the target to be detected, using a visible light camera and an infrared camera. The visible light camera and infrared camera continuously photograph the piping equipment P at all times, and the captured video data is output to the data processing unit 602. In Figure 6B, the gas leak G is shown by a solid line, and the piping equipment P is shown by a dashed line.

[0057] Next, the SIM to be used for wireless communication is selected (step S102). The SIM selection unit 601 selects whether to use a private 5G or carrier 5G wireless communication network by selecting either SIM1 or SIM2 to be used for wireless communication.

[0058] As shown in Figure 7, in this embodiment, the SIM selection unit 601 selects a SIM to be used for wireless communication according to the current time (time information). More specifically, the SIM selection unit 601 selects a SIM depending on whether the current time is within a preset time range. For example, if the current time is within the time range of 0:00 to 7:59, it is outside the working hours of the manager who manages the piping equipment P (hereinafter simply referred to as "manager"), so SIM2 (carrier 5G wireless communication network) is selected. Also, if the current time is within the time range of 8:00 to 16:59, it is within the manager's working hours, so SIM1 (private 5G wireless communication network) is selected. Furthermore, if the current time is within the time range of 17:00 to 23:59, the SIM selection unit 601 selects SIM2 because it is outside the manager's working hours.

[0059] Next, the detection data is processed according to the selected SIM (step S103). If SIM2 is selected, the data processing unit 602 processes the video data so that the details of the factory equipment cannot be seen, in order to prevent the highly confidential video of the factory equipment from being leaked to the outside, and outputs it to the communication unit 150.

[0060] For example, as shown in Figure 8, the data processing unit 602 processes the video data (e.g., mosaic processing) to the extent that the location of the gas leak can be identified. In addition to mosaic processing, as shown in Figure 9, the data processing unit 602 can also be configured to change the size of each frame of the video data and the frame rate depending on the selected SIM. For example, if SIM2 is selected, the video size can be made smaller and the frame rate lower than when SIM1 is selected. Therefore, when SIM2 is selected, the amount of information in the notification data is reduced compared to when SIM1 is selected.

[0061] On the other hand, if SIM1 is selected, the data processing unit 602 outputs the video data to the communication unit 150 without processing it. This is because the video data is transmitted to the display device 200 in the central monitoring room within the factory using private 5G.

[0062] Next, the authentication information of the selected SIM is read (step S104). If SIM1 is selected, the first reading unit 130 reads first authentication information for connecting to the private 5G wireless communication network. On the other hand, if SIM2 is selected, the second reading unit 140 reads second authentication information for connecting to the carrier 5G wireless communication network.

[0063] Next, notification data is transmitted (step S105). The communication unit 150 connects to the wireless communication network using the first or second authentication information and transmits the notification data.

[0064] In other words, during the time the manager is working inside the factory (within communication area A1), a private 5G wireless communication network is used to connect and send notification data to the display device 200 in the central control room. On the other hand, during the time the manager is absent, a carrier 5G wireless communication network is used to connect and send notification data to the manager's mobile phone 500, which is outside the factory (outside communication area A1).

[0065] The administrator checks the image displayed on the display device 200 or the mobile phone 500 screen to determine whether there is any abnormality in the piping equipment P.

[0066] Next, we return to Figure 5 and determine whether or not a termination instruction has been received (step S106). If a termination instruction has been received (step S106: YES), the process ends (end). If there is no termination instruction (step S106: NO), the process proceeds to step S101. A termination instruction is an instruction given by a manager to the fixed terminal device 100 to terminate (suspend) monitoring of the detected object, for example, when the manager has identified an abnormality in the piping equipment P and has determined that further monitoring is unnecessary, or when the manager has finished giving instructions to the workers on site in the factory to take action.

[0067] As described above, in the flowchart shown in Figure 5, the fixed terminal device 100 detects the target object using the sensor device 120 and selects which of the multiple wireless communication networks (private 5G and carrier 5G) to use to transmit notification data based on the detection data from the sensor device 120. Subsequently, the fixed terminal device 100 reads the authentication information for connecting to the selected wireless communication network, connects to the wireless communication network using the authentication information, and transmits the notification data.

[0068] (modified version) Figure 10 is a schematic diagram illustrating the SIM used for wireless communication and the content of notifications, depending on the level of confidentiality, and Figure 11 is a schematic diagram illustrating the SIM used for wireless communication and the content of notifications, depending on the sensor being driven.

[0069] In the example described above, the SIM selection unit 601 was shown to select a wireless communication network to send notification data using the current time, but it is not limited to this case. Instead of the current time, the system may be configured to use the administrator's login information to determine whether the administrator is in the central monitoring room, and then select a wireless communication network to send notification data according to the determination result.

[0070] Furthermore, as shown in Figure 10, the SIM selection unit 601 can also be configured to select a wireless communication network to which notification data is transmitted, depending on the confidentiality level of the detected data. The confidentiality level may be set by the sensor device 120 for each piece of detected data, depending on the sensors that the sensor device 120 has, or it may be specified in advance by the administrator for each sensor. In the example shown in the figure, if the confidentiality level is low, the SIM selection unit 601 selects SIM2. This selects a carrier 5G wireless communication network. On the other hand, if the confidentiality level is high, the SIM selection unit 601 selects SIM1. This selects a private 5G wireless communication network.

[0071] Furthermore, as shown in Figure 11, the SIM selection unit 601 can also be configured to select a wireless communication network to send notification data to, depending on which of the multiple sensors of the sensor device 120 is driven. In the example shown in the figure, if only the infrared camera is driven, the SIM selection unit 601 selects SIM2. This selects the carrier 5G wireless communication network. On the other hand, if both the visible light camera and the infrared camera are driven, the SIM selection unit 601 selects SIM1. This selects the private 5G wireless communication network.

[0072] As described above, the fixed terminal device 100 of this embodiment is configured to select one of several different wireless communication networks and transmit data based on data from the sensor device 120 as transmission data using the selected wireless communication network. Here, data based on data from the sensor device 120 refers to detection data from the sensor device 120 or data processed by the data processing unit 602. Therefore, even if the communication destination is outside the communication area A1 of one wireless communication network (for example, a private 5G wireless communication network), notification data can be sent to the communication destination by selecting a carrier 5G wireless communication network (for example, a carrier communication network).

[0073] Furthermore, when using a carrier 5G wireless communication network, video data is processed (e.g., blurred) before transmission, preventing highly confidential data such as videos showing details of factory equipment from being leaked to the outside.

[0074] (Second embodiment) In the first embodiment, a case was described in which, after selecting a SIM to be used for wireless communication, detection data is processed to generate notification data. In the second embodiment, a case is described in which detection data is processed to generate notification data, and a SIM to be used for wireless communication is selected based on the notification data. In the following, in order to avoid duplication of explanation, the same configuration as in the first embodiment will be omitted from the explanation.

[0075] Figure 12 is a flowchart illustrating an overview of the processing procedure for the control method of the fixed terminal device 100 in the second embodiment. Each process in the flowchart shown in Figure 12 is realized by the CPU 111 executing a control program.

[0076] The control unit 110 in this embodiment functions as a SIM selection unit 601 and a data processing unit 602, similar to the control unit 110 in the first embodiment. However, in this embodiment, the data processing unit 602 processes the detection data and generates notification data before the SIM to be used for wireless communication is selected by the SIM selection unit 601.

[0077] The administrator can, for example, input or change settings regarding whether or not to process the detected data, and, if processing is performed, settings regarding the type of processing, through the input section of the display device 200 or the mobile phone 500. The types of processing may include, for example, changing the size or frame rate of the video, or converting the video into audio or text information.

[0078] The SIM selection unit 601 selects a SIM according to the notification data. For example, the SIM selection unit 601 selects either SIM1 or SIM2 depending on the confidentiality level of the notification data. The data processing unit 602 processes the detection data into notification data and sets the confidentiality level according to the type of notification data (for example, video data from a visible light camera, video data from an infrared camera, audio information, text information, etc.). For example, the confidentiality level is set to be high for video data from a visible light camera, and low for video data from an infrared camera, audio information, and text information.

[0079] In step S202 of the flowchart shown in Figure 12, the detection data is processed, and in S203, the SIM to be used for wireless communication is selected. The processes in steps S201 and S204-S206 are the same as the processes in steps S101 and S104-S106 of the first embodiment, so a detailed explanation is omitted.

[0080] According to the fixed terminal device 100 of this embodiment described above, detection data is processed to generate notification data, and a SIM card to be used for wireless communication is selected based on the notification data, so that notification data can be sent with the notification content desired by the administrator.

[0081] (Third embodiment) In the third embodiment, the fixed terminal device 100 has a function to detect abnormalities in the target of detection, and is configured to notify an alarm when an abnormality in the target of detection is detected. In the following description, to avoid repetition, the same configuration as in the first embodiment will be omitted from the explanation.

[0082] Figure 13 is a functional block diagram illustrating the main configuration of the control unit 110 in the third embodiment, and Figure 14 is a flowchart illustrating an overview of the processing procedure for the control method of the fixed terminal device 100 in the third embodiment. Each function of the control unit 110 shown in Figure 13, and each process in the flowchart shown in Figure 14, are realized by the CPU 111 executing a control program. Figure 15 is a diagram illustrating a method for setting notification content to the administrator according to the SIM used for wireless communication. Figure 16 is a flowchart illustrating a method for setting notification content to the administrator according to the SIM used for wireless communication.

[0083] As shown in Figure 13, in this embodiment, the control unit 110 functions as a SIM selection unit 701, a data processing unit 702, an anomaly detection unit 703, an alarm notification control unit 704, and a notification content setting unit 705.

[0084] In this embodiment, the SIM selection unit 701 is the same as the SIM selection unit 601 in the first embodiment. Similarly, the SIM to be used for wireless communication is selected. The data processing unit 702 generates notification data (e.g., text information data, voice information data, etc.) based on the detection data output from the sensor device 120, according to the SIM selected by the SIM selection unit 701. The anomaly detection unit 703 detects an anomaly in the detection target, and the alarm issuance control unit 704 controls the alarm to be issued if the anomaly detection unit 703 determines that there is an anomaly in the detection target. The notification content setting unit 705 sets the notification content (e.g., video data, voice information, text information, etc.) according to the SIM selected by the SIM selection unit 701. The following describes an overview of the processing procedure for the control method of the fixed terminal device 100 in this embodiment.

[0085] In Figure 14, the processes of "Detection target detected" in step S301, "Select SIM to be used for wireless communication" in step S303, and "Termination instruction received?" in step S307 are the same as the processes of steps S101, S102, and S106 in the first embodiment, respectively, so a detailed explanation is omitted.

[0086] First, the system detects the object to be detected (step S301). The sensor device 120 photographs the piping equipment P, which is the object to be detected, and outputs video data from the visible light camera and the infrared camera.

[0087] Next, it is determined whether or not there is an abnormality in the detected object (step S302). As described above, the infrared camera of the sensor device 120 is sensitive to a specific gas having a predetermined absorption wavelength. The abnormality detection unit 703 measures the brightness value in each part of the image for each frame of the infrared camera's video data. If there is a gas leak, the heat radiation from the background is absorbed, and the heat radiation from the gas causes a change in the brightness value at the gas leak location. Since the gas diffuses in the atmosphere, fluctuations occur in the brightness value at the gas leak location. Based on these changes and fluctuations in brightness value, it is determined that there is a gas leak (abnormality).

[0088] Next, the SIM to be used for wireless communication is selected (step S303). The SIM selection unit 701 selects either SIM1 or SIM2 depending on the status of the piping equipment P (normal or abnormal), thereby selecting the wireless communication network to which the notification data will be transmitted.

[0089] Next, an alarm is issued (step S304). If the abnormality detection unit 703 determines that there is a gas leak in the piping equipment P, the alarm issuing control unit 704 generates alarm information and notifies the administrator. If SIM1 is selected by the SIM selection unit 701, the alarm issuing control unit 704 controls the system to display a warning such as "Gas leak has occurred" on the screen of the display device 200 as alarm information, and to generate an alarm sound from the speaker of the display device 200. On the other hand, if SIM2 is selected by the SIM selection unit 701, the alarm issuing control unit 704 controls the system to send an email to the administrator's mobile phone 500 informing them that a gas leak has occurred. Alternatively, if SIM2 is selected, the alarm issuing control unit 704 controls the system to display a warning such as "Gas leak has occurred" on the screen of the administrator's mobile phone 500, and to generate an alarm sound from the speaker of the mobile phone 500.

[0090] Next, the notification content setting unit 705 sets the notification content according to the SIM (step S305). The notification content setting unit 705 determines the notification content to the administrator according to the SIM selected by the SIM selection unit 701. For example, as shown in Figure 15, if SIM1 is selected, the notification content setting unit 705 sets the video output from the sensor device 120 (video from the visible light camera and infrared camera) as the notification content.

[0091] On the other hand, if SIM2 is selected, text information is set in the notification content. Data processing unit 70 If the notification content is set to text information, SIM2 generates text information based on the video data, including the type of abnormality in the piping equipment P (e.g., gas leak), the time the abnormality occurred, the area number of the area where the abnormality occurred, the identification number of the surveillance camera (fixed terminal device 100) that captured the abnormality, and the camera's shooting angle information. Therefore, when SIM2 is selected, the amount of information in the notification data is reduced compared to when SIM1 is selected.

[0092] Next, notification data is sent (step S306). The communication unit 150 sends notification data for the notification content set by the notification content setting unit 705. If the notification content is video, the communication unit 150 sends video data to the display device 200. On the other hand, if the notification content is text information, the communication unit 150 sends an email containing the text information to the administrator's mobile phone 500. This prevents highly confidential video from being transmitted via carrier 5G.

[0093] Furthermore, as shown in Figure 16, the notification content for the administrator may be configured to be set according to the level of "data transmission risk" and "security level". The notification content setting unit 705 sets visible light and infrared images as the notification content when the SIM used for wireless communication is SIM1 (step S401: SIM1) (step S402). On the other hand, when the SIM used for wireless communication is SIM2 (step S401: SIM2), it determines the data transmission risk (step S403). The data transmission risk is, for example, the risk of loss of video data during communication.

[0094] If the data transmission risk is high (step S403: high), voice information is generated based on the video data (step S404). Carrier 5G wireless communication networks are reliable for phone connections and have stable call quality. In this embodiment, in order to utilize the carrier 5G wireless communication network, the data processing unit 702 on the fixed terminal device 100 side generates voice information based on the video data, and the notification content setting unit 705 sets the voice information as the notification content (step S405). By notifying the gas leak of the piping equipment P by telephone, the data transmission risk is suppressed and the administrator can be reliably notified of the gas leak of the piping equipment P.

[0095] On the other hand, if the data transmission risk is low (step S403: low), the notification content setting unit 705 determines the security level (step S406). If the security level is high (step S406: high), since high confidentiality is required for wireless communication, the notification content setting unit 705 sets only infrared images in the notification content (step S407). On the other hand, if the security level is low (step S406: low), since confidentiality is not required, visible light and infrared images are set in the notification content (step S408).

[0096] As shown in the flowchart in Figure 14, the process involves detecting the target object and determining whether or not there is an abnormality in the target object (the state of the target object). If there is an abnormality in the target object, an alarm is issued and the notification content is set according to the SIM used for wireless communication. Then, the notification data containing the notification content is sent.

[0097] The fixed terminal device 100 of this embodiment, as described above, provides the following effects in addition to the effects of the first embodiment.

[0098] The fixed terminal device 100 emits an alarm when it detects an abnormality such as a gas leak, making it easy for administrators to notice abnormalities.

[0099] Furthermore, since notification content is set according to data transmission risk and security level, administrators can be notified more effectively.

[0100] (Fourth embodiment) In the fourth embodiment, we will describe a case where the SIM used is switched depending on whether or not there is an abnormality in the detected target. In order to avoid repetition of the explanation, the same configuration as in the third embodiment will be omitted below.

[0101] Figure 17 is a functional block diagram illustrating the main configuration of the control unit 110 in the fourth embodiment, and Figure 18 is a flowchart illustrating an overview of the processing procedure for the control method of the fixed terminal device 100 in the fourth embodiment. Each function of the control unit 110 shown in Figure 17, and the processing shown in the flowchart in Figure 18, are realized by the CPU 111 executing a control program.

[0102] In this embodiment, when SIM1 is selected, the fixed terminal device 100 communicates with the display device 200 using a private 5G wireless communication network, and when SIM2 is selected, it communicates with the display device (not shown) at the head office's centralized management center using a carrier 5G wireless communication network. The fixed terminal device 100, the display device 200, and the display device at the centralized management center constitute the monitoring system 10.

[0103] As shown in Figure 17, the control unit 110 includes an anomaly detection unit 801, a SIM selection unit 802, and a notification content setting unit 803. The anomaly detection unit 801 detects an anomaly to be detected, and the SIM selection unit 802 selects a SIM based on the detection result by the anomaly detection unit 801. The notification content setting unit 803 sets the notification content to the administrator according to the SIM selected by the SIM selection unit 802. The following describes an overview of the processing procedure for the control method of the fixed terminal device 100 in this embodiment.

[0104] As shown in Figure 18, the detection target is detected (step S501). The sensor device 120 photographs the piping equipment P as the detection target and outputs video data from the visible light camera and the infrared camera.

[0105] Next, it is determined whether or not there is an abnormality in the target of detection (step S502). The abnormality detection unit 801 determines, for example, whether or not there is an abnormality such as a gas leak in the piping equipment based on the video data from the infrared camera.

[0106] If there is no abnormality in the detection target (step S502: NO), the SIM selection unit 802 selects SIM1 (step S503). SIM1 is a SIM for communicating with the display device 200 in the central monitoring room within the factory using a private 5G wireless communication network.

[0107] Next, the notification content is set (step S504). The notification content setting unit 803 sets the visible light camera and infrared camera images as the notification content for the administrator of the central monitoring room in the factory.

[0108] Next, notification data is sent (step S505). The communication unit 150 sends notification data of the notification content set by the notification content setting unit 803 to the display device 200. Then, it is determined whether or not there is a termination instruction (step S509). If there is a termination instruction (step S509: YES), the process ends (end), and if there is no termination instruction (step S509: NO), the process proceeds to step S501.

[0109] On the other hand, if there is an abnormality in the detected target (step S502: YES), the SIM selection unit 802 selects SIM2 (step S506). SIM2 is a carrier 5G wireless communication network. This SIM card is used to communicate with a display device at the centralized control center located within the head office, on a separate site from the factory (outside communication area A1), using the network.

[0110] Next, the notification content is set (step S507). The notification content setting unit 803 sets the following information for the notification to the administrator of the centralized management center at the head office: the image from the infrared camera, the area number of the area where the anomaly occurred, the identification number of the surveillance camera (fixed terminal device 100) that captured the anomaly, and information regarding the shooting angle of the surveillance camera.

[0111] Next, notification data is transmitted (step S508). The communication unit 150 transmits notification data containing the notification content set by the notification content setting unit 803. The display device at the head office's centralized management center receives the notification data and displays it on the screen. The notification content does not include visible light images. Therefore, the display device synthesizes a visible image of the piping equipment P under normal conditions, as seen from the surveillance camera that captured the gas leak, based on the infrared camera image, the area number of the area where the gas leak occurred, the surveillance camera identification number, and information about the surveillance camera's shooting angle. This is because the infrared camera image alone contains insufficient information, making it difficult to pinpoint the location of the gas leak and determine the degree of danger of the abnormality. Furthermore, the display device overlays the visible image of the piping equipment P under normal conditions with the infrared camera image included in the notification content. This makes it possible to identify the location of the gas leak in the piping equipment P on the image of the piping equipment P. Alternatively, images of the piping system P taken by surveillance cameras (visible light cameras) placed in multiple locations can be pre-recorded as normal visible images. When a gas leak is detected, the normal image of the piping system P, as seen from the surveillance camera that captured the gas leak, can be obtained using the area number and the identification number of the surveillance camera.

[0112] As described above, the flowchart in Figure 18 processes the following steps: depending on whether or not there is an abnormality in the detected target (the state of the detected target), the SIM to be used is switched, notification content corresponding to the SIM is set, and notification data of the notification content is sent to the display device 200 in the central monitoring room in the factory or the display device in the central management center at the head office.

[0113] The fixed terminal device 100 of this embodiment, as described above, provides the following effects in addition to the effects of the third embodiment.

[0114] When the fixed terminal device 100 detects an abnormality such as a gas leak, it transmits notification data using carrier 5G to the centralized management center at the head office, which is located away from the factory where the piping equipment P is located. Therefore, it is possible to transmit high-quality and large-capacity information while preventing the leakage of confidential information related to the piping equipment P.

[0115] In the example described above, the case in which the infrared camera image transmitted from the fixed terminal device 100 is combined (overlaid) with the visible image prepared by the display device at the central control center is explained. However, this embodiment is not limited to such cases. For example, the display device at the central control center may store notification data (detection data from each sensor) transmitted from the fixed terminal device 100 during normal operation of the detection target, and can combine or compare the stored notification data with the notification data transmitted when an abnormality occurs in the inspection target.

[0116] (Fifth embodiment) In the first to fourth embodiments described above, the monitoring system 10 was explained using the example of monitoring piping equipment in factories, plants, etc. In the fifth embodiment, the monitoring system 10 will be explained using the example of monitoring patients in hospitals, elderly care facilities, etc. (hereinafter referred to as "facilities"). In the following, in order to avoid repetition of explanations, the same configuration as in the fourth embodiment will be omitted from the explanation.

[0117] Figure 19 is a functional block diagram illustrating the main configuration of the control unit 110 in the fifth embodiment, and Figure 20 is a flowchart illustrating an overview of the processing procedure for the control method of the fixed terminal device 100 in the fifth embodiment. Each function of the control unit 110 shown in Figure 19, and each process in the flowchart shown in Figure 20, are realized by the CPU 111 executing a control program.

[0118] Although not shown in the diagram, this embodiment assumes that a private 5G base station 300 is installed within the facility, and a carrier 5G base station 400 is installed in the vicinity of the facility. Wireless communication using private 5G is possible within the facility. Communication with areas outside the facility (outside the private 5G communication area) is possible via the carrier 5G wireless communication network.

[0119] In this embodiment, the hardware configuration of the control unit 110, the first readout unit 130, the second readout unit 140, and the communication unit 150 of the fixed terminal device 100 is the same as in the first to fourth embodiments. The sensor device 120 includes a visible light camera, a Doppler sensor, and a LiDAR (Light Detection and Ranging, Laser Imaging Detection and Ranging). In this embodiment, the fixed terminal device 100 is installed, for example, on the ceiling of a patient's room in a facility, and the sensor device 120 is positioned facing the patient's bed which is installed on the floor.

[0120] A visible light camera captures images of the patient being detected and outputs video data. A Doppler sensor transmits and receives microwaves to the patient, detecting and outputting the Doppler shift of the microwaves caused by the patient's body movements (e.g., breathing, heartbeat). A lidar sensor measures and outputs the distance from, for example, the ceiling to various parts of the patient's body.

[0121] As shown in Figure 19, the control unit 110 functions as a patient state estimation unit 901, an anomaly detection unit 902, a SIM selection unit 903, a notification content setting unit 904, and an alarm notification control unit 905. The patient state estimation unit 901 estimates and records the patient's state. More specifically, the patient state estimation unit 901 estimates the patient's posture based on the estimation result obtained by estimating the patient's skeleton from the patient's image captured by a visible light camera using known skeletal recognition technology, and the distance to each part of the patient's body measured by a lidar. The patient state estimation unit 901 also estimates the patient's respiratory rate and heart rate from the Doppler shift detected by a Doppler sensor. The patient's state, including the patient's posture, respiratory rate (respiratory information), and heart rate (heart rate information), is stored in the auxiliary storage unit 114 in a time series.

[0122] The following outlines the processing procedure for the control method of the fixed terminal device 100 in this embodiment. As shown in Figure 20, first, the detection target is detected (step S601). The sensor device 120 photographs the patient as the detection target and outputs the video data from the visible light camera, the detection result from the Doppler sensor, and the measurement result from the lidar to the patient state estimation unit 901.

[0123] Next, it is determined whether or not there is an abnormality in the detected object (step S602). The patient state estimation unit 901 estimates the patient's state, and the abnormality detection unit 902 determines whether or not there is an abnormality in the patient based on the estimated patient state. For example, if the estimated patient state suggests the possibility of a fall or respiratory arrest, the abnormality detection unit 902 determines that there is an abnormality.

[0124] If there is no abnormality in the detection target (step S602: NO), the SIM selection unit 903 selects SIM1 (step S603). SIM1 is a SIM used to communicate with the mobile terminals (not shown) of staff within the facility using a private 5G wireless communication network.

[0125] Next, the notification content is set (step S604). The notification content setting unit 904 sets the notification content for the staff within the facility to include the video from the visible light camera and the estimated results of the patient's condition. Since a private 5G wireless communication network is used, there is no concern that the patient's private information, such as video footage of the patient's face, will be leaked via wireless communication.

[0126] Next, notification data is sent (step S605). The communication unit 150 sends notification data containing the notification content set by the notification content setting unit 904 to the staff member's mobile terminal. Then, it is determined whether or not there is a termination instruction (step S611). If there is a termination instruction (step S611: YES), the process ends (end), and if there is no termination instruction (step S611: NO), the process proceeds to step S601. A termination instruction is, for example, an instruction for the staff member to end (interrupt) monitoring the patient for some reason, such as the patient's discharge.

[0127] On the other hand, if there is an abnormality in the detected object (step S602: YES), the SIM selection unit 903 selects SIM1. Next, an alarm is issued (step S607). The alarm control unit 905 issues an alarm if the abnormality detection unit 902 determines that there is an abnormality in the patient. The alarm control unit 905 displays a warning as alarm information, for example, on the screen of a staff member's mobile terminal, such as "Ms. XX in room 101 has fallen."

[0128] Next, the SIM selection unit 903 selects SIM2 (step S608). SIM2 is a SIM for communicating with terminal devices (e.g., personal computers not shown) at locations outside the facility, such as the patient's home, workplace, or the hospital where the patient's doctor is located, using the carrier 5G wireless communication network.

[0129] Next, the notification content is set (step S609). When the notification content setting unit 904 communicates with a terminal device at the hospital where the attending physician is located, for example, it sets the estimated results of skeletal detection, respiratory rate, pulse rate, etc., as the notification content for the attending physician. This information is not personally identifiable. On the other hand, personal information including the patient's face and gender, or information that can identify an individual, is not set in the notification content. This prevents the leakage of highly confidential data and information about the patient.

[0130] Next, notification data is transmitted (step S610). The communication unit 150 transmits notification data with the notification content set by the notification content setting unit 904. The terminal device at the hospital where the attending physician is located receives the notification data with the notification content and displays it on the screen. This allows the attending physician to immediately assess the patient's condition and instruct the facility staff on necessary actions.

[0131] As described above, the flowchart in Figure 20 determines whether or not there is an abnormality in the detected target. If there is no abnormality in the detected target, SIM1 is selected as the SIM to be used for wireless communication, and notification data with the appropriate content for SIM1 is sent. On the other hand, if there is an abnormality in the detected target, an alarm is issued, the SIM used for wireless communication is switched to SIM2, the notification content appropriate for SIM2 is set, and notification data is sent.

[0132] The fixed terminal device 100 of this embodiment described above provides the following effects in addition to the effects of the fourth embodiment.

[0133] When the fixed terminal device 100 detects an anomaly, it transmits notification data limited to information that cannot identify individuals, using carrier 5G. Therefore, high-quality and large-capacity information, such as patient video data, can be transmitted within the facility, while preventing the leakage of highly confidential data and information about patients when transmitting outside the facility.

[0134] As described above, the fixed terminal device, control method, and control program have been explained in the embodiments. However, it goes without saying that the present invention can be appropriately added to, modified, and omitted by those skilled in the art within the scope of its technical concept.

[0135] For example, in the first to fourth embodiments described above, a fixed terminal device 100 was exemplified as a surveillance camera for monitoring gas leaks, but the invention is not limited to this case, and the fixed terminal device 100 may be, for example, a security surveillance camera for detecting suspicious persons. Furthermore, this security surveillance camera may have a configuration that includes both a visible light camera and an infrared camera, or it may have a configuration that includes only one of them.

[0136] Furthermore, the flowchart described above may omit some steps, and other steps may be added. Also, some steps may be executed simultaneously, and one step may be divided into multiple steps for execution.

[0137] Furthermore, the control program may be provided on a computer-readable recording medium such as a USB memory stick, flexible disk, or CD-ROM, or it may be provided online via a network such as the Internet. In this case, the program recorded on the computer-readable recording medium is usually transferred to and stored in memory or storage. This control program may also be provided, for example, as a standalone application software, or it may be incorporated into the software of each device as a function of the server.

[0138] Furthermore, in the embodiment, some or all of the processing performed by the program may be replaced and executed by hardware such as circuits. [Explanation of Symbols]

[0139] 100 Fixed terminal devices, 110 Control unit, 120 sensor devices, 130 First reading unit, 140 Second reading section, 150 Communications Department, 200 display devices; 300 private 5G base stations, 400 carrier 5G base stations, 500 administrator's mobile phone, 601 SIM selection section, 602 Data Processing Department, 701 SIM selection section, 702 Anomaly detection unit, 703 Alarm activation control unit, 704 Notification content setting section, 705 Audio data generation unit, 801 Anomaly detection unit, 802 SIM selection section, 803 Notification content setting section, 901 Patient Status Monitoring Department, 902 Anomaly detection unit, 903 SI M selection section, 904 Notification content setting section, 905 Alarm activation control unit.

Claims

1. A fixed terminal device used within a range capable of communicating with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, wherein the fixed terminal device is Sensor devices and, A generation unit that generates notification data based on detection data from the aforementioned sensor device, A selection unit that selects whether to transmit the generated notification data over the first wireless communication network or the second wireless communication network, A transmission unit that transmits the notification data using the wireless communication network selected by the selection unit, Equipped with, The generation unit sets the confidentiality level according to the type of notification data. The generation unit sets the confidentiality level to a high level if the notification data is data acquired by a visible light camera. The selection unit is a fixed terminal device that selects a wireless communication network to which to transmit the notification data, according to the confidentiality level of the generated notification data.

2. A fixed terminal device used within a range capable of communicating with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, wherein the fixed terminal device is Sensor devices and, A generation unit that generates notification data based on detection data from the aforementioned sensor device, A selection unit that selects whether to transmit the generated notification data over the first wireless communication network or the second wireless communication network, A transmission unit that transmits the notification data using the wireless communication network selected by the selection unit, Equipped with, The generation unit sets the confidentiality level according to the type of notification data. The generation unit sets the confidentiality level to a low level if the notification data is data acquired by an infrared camera, audio information, or text information. The selection unit is a fixed terminal device that selects a wireless communication network to which to transmit the notification data, according to the confidentiality level of the generated notification data.

3. The aforementioned fixed terminal device is A first reading unit reads authentication information for connecting to the first wireless communication network, A second reading unit reads authentication information for connecting to the second wireless communication network, Furthermore, The fixed terminal device according to claim 1 or 2, wherein the transmitting unit transmits the notification data using the authenticated wireless communication network after being authenticated using the authentication information.

4. The fixed terminal device according to any one of claims 1 to 3, wherein the first wireless communication network is a private wireless line, and the second wireless communication network is a wireless line of a mobile communications carrier or a public wireless line.

5. The fixed terminal device according to any one of claims 1 to 4, wherein the first wireless communication network and the second wireless communication network conform to the same communication standard.

6. The fixed terminal device according to any one of claims 1 to 4, wherein the first wireless communication network and the second wireless communication network are wireless communication networks that satisfy the requirements for a fifth-generation wireless communication system.

7. The fixed terminal device according to claim 4, wherein the amount of information in the notification data transmitted using the second wireless communication network is less than the amount of information in the notification data transmitted using the first wireless communication network.

8. A fixed terminal device according to any one of claims 1 to 7, wherein the content of the notification data is set according to the wireless communication network selected by the selection unit.

9. The system further includes an abnormality detection unit that detects abnormalities in the target of the sensor device, The fixed terminal device according to any one of claims 1 to 8, wherein when the abnormality detection unit detects an abnormality, it generates and transmits alarm information corresponding to the wireless communication network selected by the selection unit.

10. A control method for a fixed terminal device used within a range that allows communication with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, A detection step in which a sensor device detects the target to be detected, A generation step of generating notification data based on detection data from the aforementioned sensor device, A selection step in which to transmit the notification data generated in the generation step over the first wireless communication network and the second wireless communication network, The system includes a transmission step of transmitting the notification data using the wireless communication network selected in the selection step, In the generation step, a confidentiality level is set according to the type of notification data, and if the notification data is data acquired by a visible light camera, the confidentiality level is set to a higher level. A control method that, in the selection step, selects a wireless communication network to which to transmit the notification data, according to the confidentiality level of the generated notification data.

11. A control method for a fixed terminal device used within a range that allows communication with both a first wireless communication network and a second wireless communication network different from the first wireless communication network, A detection step in which a sensor device detects the target to be detected, A generation step of generating notification data based on detection data from the aforementioned sensor device, A selection step in which to transmit the notification data generated in the generation step over the first wireless communication network and the second wireless communication network, The system includes a transmission step of transmitting the notification data using the wireless communication network selected in the selection step, In the generation step, a confidentiality level is set according to the type of notification data, and if the notification data is data acquired by an infrared camera, audio information, or text information, the confidentiality level is set to a lower level. A control method that, in the selection step, selects a wireless communication network to which to transmit the notification data, according to the confidentiality level of the generated notification data.

12. The system further includes a reading step for reading authentication information for connecting to the wireless communication network selected in the selection step, wherein the authentication information is for connecting to the first wireless communication network or the second wireless communication network. The control method according to claim 10 or 11, wherein in the transmission step, after the wireless communication network selected in the selection step is authenticated using the authentication information, the notification data is transmitted using the authenticated wireless communication network.

13. The control method according to any one of claims 10 to 12, wherein the first wireless communication network is a private wireless line, and the second wireless communication network is a wireless line of a mobile communications carrier or a public wireless line.

14. A control program for causing a computer to execute a process included in the control method described in any one of claims 10 to 13.

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