Wireless communication repeater system and its arrangement method

Abstract

This allows for verification of the suitability of placement, specifically whether the repeaters constituting a wireless communication repeater system are located in locations that are feasible given environmental conditions and equipment performance. [Solution] A wireless communication repeater system 10 is provided in which radio waves α are relayed between a target repeater 11A and at least one other repeater 11B, 11C... to establish a wireless communication area 12, and a repeater diagnostic device 15 is provided on the target repeater 11A so as to be connectable. The repeater diagnostic device 15 is configured to include a dose sensor which is an environmental sensor 21 that measures the radiation dose and cumulative dose around the target repeater 11A, a display panel 23 that is provided to display information including the measured value of the dose sensor, and a control unit 30 that displays the measured value of the dose sensor on the display panel 23 and predicts the time until failure of the target repeater 11A and the other repeaters 11B, 11C... based on the measured value of the dose sensor.

Description

Technical Field

[0001] Embodiments of the present invention relate to a relay system for wireless communication and a method of arranging the relay system for wireless communication.

Background Art

[0002] In recent years, the use of wireless communication technology has expanded significantly, and mobile terminals, wearable sensors, or various IoT (Internet of Things) sensors have been applied in various sites such as factories and plants. However, since these wireless devices communicate with a wireless base station via radio waves, the communication area is limited to the range where the radio waves can reach.

[0003] As one method of expanding the communication area, there is a multi-hop network technology that uses a repeater in addition to a wireless base station. In this multi-hop network technology, since the radio waves are relayed by the repeater, the communication area can be expanded. In addition, within the range where the radio waves can reach, the repeater can be freely arranged, and there is an advantage that wireless communication is possible even when the wireless device has a positional relationship where it cannot see the wireless base station.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As a relay system for wireless communication as described above, for example, as shown in FIG. 5, in a repeater 103 including an antenna 101 and a radio wave transmission / reception switching unit 102, an acceleration sensor 104 senses the installation state of the repeater 103, and when the repeater 103 moves or falls, a signal is transmitted to a display unit 105 to display an installation abnormality on a screen, and in addition, a system that notifies an installation abnormality by light or sound is known (for example, Patent Document 1).

[0006] This system makes it easy to identify which of the multiple repeaters 103 is experiencing a failure by displaying installation failure information in text, light, and sound. Furthermore, obtaining installation information allows for faster subsequent maintenance. The repeater 103 also features a central control unit 106 that functions as a communication failure detection device. When it determines that an installation failure has occurred, it controls the communication functions of one or more repeaters 103.

[0007] In the wireless communication repeater system described in Patent Document 1, by using a repeater 103 that has an acceleration sensor 104 for measuring the installation status of the repeater 103, a display unit 105 for displaying the installation status, and an audible device or light-emitting device for notifying the installation status, it is possible to detect if the repeater 103 has fallen over or if there is an installation abnormality and to communicate this to the surroundings by sound or light.

[0008] However, there is no means to detect and notify the degree of environmental compatibility of the repeater 103, and the placement (installation) of the repeater 103 cannot be changed depending on environmental conditions. Furthermore, because the radiation resistance specific to power plants cannot be taken into account, it is impossible to predict the time until failure of the wireless communication repeater system. The technology to reinstall (relocate) the repeater 103 according to environmental conditions is extremely important in power plants.

[0009] The embodiments of the present invention have been made in consideration of the above circumstances, and aim to provide a wireless communication repeater system and a method for arranging a wireless communication repeater system that can confirm the suitability of the arrangement of the repeaters constituting the wireless communication repeater system, such as whether they are placed in locations that are feasible in terms of environmental conditions and equipment performance.

[0010] Furthermore, the embodiments of the present invention have been made in consideration of the above circumstances, and another objective is to provide a wireless communication repeater system and a method for arranging a wireless communication repeater system that allows for easy relocation of the repeaters constituting the wireless communication repeater system to locations where they can be placed in accordance with environmental conditions and equipment performance. [Means for solving the problem]

[0011] The wireless communication repeater system in an embodiment of the present invention is a wireless communication repeater system in which radio waves are relayed between a target repeater and at least one other repeater to establish a wireless communication area, and a repeater diagnostic device is provided on the target repeater so as to be connectable, wherein the repeater diagnostic device is configured to include a sensor that measures the radiation dose and cumulative dose around the target repeater, a display panel provided to display information including the measured value of the sensor, and a control unit that displays the measured value of the sensor on the display panel and predicts the time until failure of the target repeater and the other repeaters based on the measured value of the sensor.

[0012] The method for arranging a wireless communication repeater system in an embodiment of the present invention is a method for arranging a wireless communication repeater system in which radio waves are relayed between a target repeater and at least one other repeater to construct a wireless communication area, and a repeater diagnostic device is provided so as to be connectable to the target repeater, wherein the repeater diagnostic device is prepared having a first display component whose display can be changed according to the environmental conditions around the target repeater, and a notification device whose state of at least one of vibration, sound, and light can be changed, first the arrangement locations of the target repeater and the other repeaters are examined by radio wave analysis, then the target repeater and the other repeaters are placed on site, then the environmental conditions around the target repeater are checked by the change in the first display component of the repeater diagnostic device, and a change in the arrangement of the target repeater is considered, and if a change in the arrangement of the target repeater is necessary, the arrangement of the target repeater is changed using the change in at least one state of vibration, sound, and light by the notification device of the repeater diagnostic device as an indicator. [Effects of the Invention]

[0013] According to embodiments of the present invention, it is possible to confirm the suitability of placement of repeaters constituting a wireless communication repeater system, specifically whether they are located in a location that is feasible given environmental conditions and equipment performance. Furthermore, it is possible to easily change the placement of repeaters constituting a wireless communication repeater system to a location that is feasible given environmental conditions and equipment performance. [Brief explanation of the drawing]

[0014] [Figure 1] A schematic perspective view showing a wireless communication repeater system according to one embodiment. [Figure 2] Figure 1 is a perspective view showing the repeater diagnostic equipment, etc. [Figure 3] Figure 2 is a block diagram showing the configuration of the repeater diagnostic device. [Figure 4] A flowchart showing the configuration method of a wireless communication repeater system using the repeater diagnostic device shown in Figures 1 to 3. [Figure 5] A block diagram showing the configuration of a conventional wireless communication repeater. [Modes for carrying out the invention]

[0015] Hereinafter, embodiments for carrying out the present invention will be described based on the drawings. Figure 1 is a schematic perspective view showing a wireless communication repeater system according to one embodiment. As shown in Figure 1, in the wireless communication repeater system 10, radio waves α are relayed between a target repeater 11A and at least one other repeater 11B, 11C, ... to construct a wireless communication area 12, and wireless communication is performed between a server 13 and a wireless device 14 located within this wireless communication area 12. The target repeater 11A is a repeater that generates radio waves α (for example, radio waves in the low frequency band such as 426MHz), and a repeater diagnostic device 15 is provided to the target repeater 11A so as to be connectable using a cable 16. Note that communication between repeaters 11A to 11F is not limited to adjacent repeaters, but can also be conducted by bypassing intermediate repeaters 11B, for example, from repeater 11C to repeater 11A, as long as the radio waves α can reach within that range.

[0016] The target repeater 11A is the repeater whose suitability for the placement environment (placement suitability) is diagnosed by the repeater diagnostic device 15. In addition, each of the target repeater 11A and the other repeaters 11B, 11C, etc. is equipped with an antenna 17 for adjusting the directivity of radio wave α. Furthermore, the target repeater 11A is provided with an attenuation adjuster 18 that can be connected using a cable 19, and this attenuation adjuster 18 adjusts the intensity of radio wave α generated by the target repeater 11A.

[0017] For example, in a power plant, it is assumed that there are devices that are susceptible to the effects of radio wave α (noise-affected devices 20). In the wireless communication repeater system 10, the directivity of the antennas 17 of the target repeater 11A and other repeaters 11B, 11C, etc. can be manually adjusted by an operator so that radio wave α avoids the noise-affected devices 20. Furthermore, the attenuation adjuster 18 can be manually adjusted (reduced) by an operator so that the intensity of radio wave α from the target repeater 11A is reduced, thereby reducing the impact of radio noise on the noise-affected devices 20.

[0018] As shown in FIGS. 2 and 3, the repeater diagnostic device 15 diagnoses the placement suitability (placement feasibility) of whether the connected target repeater 11A is placed in a location where it can be placed considering environmental conditions and device performance, and further supports the change of the placement of the target repeater 11A. This repeater diagnostic device 15 includes an environmental sensor 21 that measures the environmental conditions around the target repeater 11A, a signal receiving unit 22 that receives signals from other repeaters 11B, 11C... wirelessly connected to the target repeater 11A together with the signal from the target repeater 11A, a display panel 23 on which information can be displayed, a large lamp 24 as a first display component, a small lamp 25 as a second display component, a speaker 26, a vibration device 27, and a light emitting device 28 as notification devices, a threshold adjustment means 29, and a control unit 30.

[0019] In particular, the control unit 30 determines evaluation points regarding the placement suitability of the target repeater 11A with respect to the environmental conditions (temperature, humidity, vibration, radiation dose, radio wave intensity) around the target repeater 11A using artificial intelligence (AI) or machine learning techniques. Upper and lower threshold values are preset for the environmental conditions. The above evaluation points are, for example, 1 point when the target repeater 11A is in the optimal placement position, 2 points when the target repeater 11A can be placed but is not in the optimal placement position, 5 points when exceeding the above threshold value, and 10 points when significantly exceeding the above threshold value. The control unit 30 diagnoses that the placement of the target repeater 11A is unsuitable in terms of environmental conditions when the total (total evaluation points) of the evaluation points for each environmental condition is 10 points or more.

[0020] The control unit 30 controls the change (lighting, extinguishing) of the display of the large lamp 24 based on each evaluation point obtained as described above. Also, the control unit 30 controls the operation of at least one of the speaker 26, the vibration device 27, and the light emitting device 28 based on the total evaluation point obtained as described above. Further, the control unit 30 controls the switching of the display on the display panel 23 and controls the change (lighting, extinguishing) of the display of the small lamp 25 based on the signal from the signal receiving unit 22.

[0021] The environmental sensor 21 includes a temperature sensor, a humidity sensor, a vibration sensor, a dose sensor, and a radio wave sensor. The temperature around the target repeater 11A is measured by the temperature sensor, and the humidity around the target repeater 11A is measured by the humidity sensor, respectively. These temperature and humidity are environmental conditions set in advance.

[0022] The vibration of the target repeater 11A is measured by the vibration sensor. Also, the radiation dose per hour, for example, around the target repeater 11A and the integrated dose predicted for one year are measured by the dose sensor. Further, the intensity of the radio wave α generated from the target repeater 11A by the current controlled by the attenuation adjuster 18 is measured by the radio wave sensor. The above-described vibration, radiation dose, integrated dose, and radio wave intensity are environmental conditions measured on-site.

[0023] Five large lamps 24 are provided corresponding to the environmental conditions (temperature, humidity, vibration, radiation dose, radio wave intensity) around the target repeater 11A measured by the environmental sensor 21. The display of each large lamp 24 is provided to be changeable (lit, extinguished) based on the environmental conditions so that it lights up when each environmental condition exceeds the threshold value and the evaluation score is 5 or more. That is, when the temperature around the target repeater 11A measured by the temperature sensor, which is the environmental sensor 21, exceeds the threshold value, the control unit 30 lights up the large lamp 24 corresponding to the temperature. Also, when the humidity around the target repeater 11A measured by the humidity sensor, which is the environmental sensor 21, exceeds the threshold value, the control unit 30 lights up the large lamp 24 corresponding to the humidity.

[0024] When the vibration of the target repeater 11A measured by the vibration sensor, which is the environmental sensor 21, exceeds the threshold value, the control unit 30 lights up the large lamp 24 corresponding to the vibration. Also, when at least one of the radiation dose and the integrated dose around the target repeater 11A measured by the dose sensor, which is the environmental sensor 21, exceeds the threshold value, the control unit 30 lights up the large lamp 24 corresponding to the dose. Further, when the intensity of the radio wave α generated from the target repeater 11A measured by the radio wave sensor, which is the environmental sensor 21, exceeds the threshold value, the control unit 30 lights up the large lamp 24 corresponding to the radio wave intensity.

[0025] The display panel 23 has, for example, a touch-panel type liquid crystal display screen, and this display screen displays information including the measured values ​​of the radiation sensor, which is the environmental sensor 21 (radiation dose and cumulative dose shown in Figure 1). The display screen of the display panel 23 is also provided with multiple channel icons 31 (CH1 to CH8) for switching screens. When one of these channel icons 31 is selected and touched, the control unit 30 switches the display screen of the display panel 23 in accordance with the touched channel icon 31. For example, channel icon 31 CH1 corresponds to the screen for displaying radiation dose, channel icons 31 CH2 to CH6 correspond to the screens for setting thresholds for each environmental condition, channel icon 31 CH7 corresponds to the screen for registering repeaters, and channel icon 31 CH8 corresponds to the screen for diagnosing the repeater placement.

[0026] In other words, by touching CH1 on the channel icon 31, the display screen of the display panel 23 becomes a screen for displaying radiation doses. The control unit 30 displays the radiation dose per hour and the predicted cumulative dose for one year on this screen, and based on these measured values ​​of radiation doses, it predicts and displays the time until radiation-induced failure of the target repeater 11A, other repeaters 11B, 11C, etc., antenna 17, and attenuation regulator 18. Note that the unit notation "dose...μSv / h" and "cumulative dose...mSv / y" in Figure 2 is just an example, and dose and cumulative dose can be displayed in various units.

[0027] When each of the CH2 to CH6 channels of the channel icon 31 is touched, the display screen of the display panel 23 becomes a threshold setting screen for each environmental condition (temperature, humidity, vibration, radiation dose, radio wave intensity). On each threshold setting screen, the control unit 30 sets upper and lower threshold limits for each environmental condition, based on the operator's operation of the threshold adjustment means 29, which are the limits for the placement of the target repeater 11A in the environment where the target repeater 11A is to be located.

[0028] Here, the threshold adjustment means 29 is operated by the operator to set a threshold for each environmental condition, as described above. Specifically, this threshold adjustment means 29 may be a numerical input means such as an adjustment screw, adjustment button, or adjustment knob, or a numerical input means via voice.

[0029] Furthermore, by touching the CH7 channel icon 31 on the display panel 23, the display screen of the display panel 23 becomes a screen for repeater registration. The control unit 30 uses this screen to register the numbers of the target repeater 11A and other repeaters 11B, 11C, etc., that are placed on site as registration numbers. When the signal receiving unit 22 receives signals from the target repeater 11A and other repeaters 11B, 11C, etc., the control unit 30 lights up the small lamp 25 corresponding to the registration number of the repeater that received the signal.

[0030] Here, the small lamp 25 is used to confirm which of the other repeaters 11B, 11C, etc. the target repeater 11A is wirelessly connected to, and is provided so that its display can change (light up, turn off) in accordance with the target repeater 11A and the other repeaters 11B, 11C, etc. When the control unit 30 receives signals from the other repeaters 11B, 11C, etc. that are wirelessly connected to the target repeater 11A via the signal receiving unit 22, it lights up the small lamp 25 corresponding to the other repeaters 11B, 11C, etc. along with the small lamp 25 corresponding to the target repeater 11A. This makes it possible for the operator to confirm which of the other repeaters 11B, 11C, etc. the target repeater 11A is wirelessly connected to. Furthermore, since other repeaters 11B, 11C, etc. that are expected to be wirelessly connected to the target repeater 11A have been identified in advance through radio wave analysis, the illumination of the small lamp 25 allows the worker to confirm whether the other repeaters 11B, 11C, etc. are connected to the target repeater 11A as planned.

[0031] Furthermore, touching the CH8 channel icon 31 on the display panel 23 changes the display screen on the display panel 23 to a screen for repeater placement diagnosis. This screen is used to switch between "environmental diagnosis mode" and "placement fine-tuning mode" for diagnosing the placement of the target repeater 11A. Switching between these modes is performed by the control unit 30 based on the total evaluation score, or by manual operation by the operator.

[0032] The environmental diagnostic mode is a mode for diagnosing whether the location of the target repeater 11A conforms to the environmental conditions (temperature, humidity, vibration, radiation dose, radio wave intensity). In this mode, if the total evaluation score based on the measurement values ​​of the environmental conditions around the target repeater 11A by environmental sensors is 10 points or more, the control unit 30 operates at least one of the speaker 26, vibration device 27, and light-emitting device 28 according to the degree to which the environmental conditions exceed a preset value (10 points in the total evaluation score), changing the output state of at least one of the sound from the speaker 26, the vibration from the vibration device 27, and the light from the light-emitting device 28.

[0033] If the total evaluation score based on the measurements from the environmental sensor 21 falls below 10 points, the control unit 30 stops the speaker 26, the vibration device 27, and the light-emitting device 28. Therefore, the worker moves the target repeater 11A to a suitable location so that the output of at least one of the output states—sound from the speaker 26, vibration from the vibration device 27, and light from the light-emitting device 28—decreases.

[0034] The fine-tuning mode for placement is a mode for fine-tuning the placement of the target repeater 11A to a location with even better environmental conditions (a location with a total evaluation score of less than 5 points), even if the current placement location of the target repeater 11A is suitable for the environmental conditions. In this mode, the control unit 30 operates at least one of the speaker 26, vibration device 27, and light-emitting device 28 according to the degree to which the environmental conditions exceed a preset value (a total evaluation score of 5 points) when the total evaluation score based on the measurement of the environmental conditions around the target repeater 11A by the environmental sensor 21 is 5 points or more but less than 10 points, thereby changing at least one output state of sound from the speaker 26, vibration from the vibration device 27, and light from the light-emitting device 28.

[0035] If the total evaluation score based on the measurements from the environmental sensor 21 falls below 5 points, the control unit 30 stops the speaker 26, the vibration device 27, and the light-emitting device 28. Therefore, the worker uses the output state of at least one of the following as an indicator: sound from the speaker 26, vibration from the vibration device 27, and light from the light-emitting device 28, and moves the target repeater 11A slightly to the location with the highest placement suitability (a location with a total evaluation score of less than 5 points) so that the output decreases.

[0036] Furthermore, the repeater diagnostic device 15 configured as described above may be equipped with GPS (Global Positioning System) to prevent loss. This GPS may include an indoor version of GPS, "IMES (Indoor MEssaging System)," and may be configured to measure the location of the repeater diagnostic device 15 without boundaries between indoors and outdoors. In addition, the repeater diagnostic device 15 may be provided in a way that allows the remaining battery level to be identified by sound, light, radio waves, etc. Moreover, if the repeater diagnostic device 15 detects unauthorized radio waves, it may be configured to warn the user of this fact by sound, light, vibration, etc.

[0037] Next, the procedure for deploying the wireless communication repeater system 10 using the repeater diagnostic device 15 configured as described above will be explained with reference to Figure 4. When using the repeater diagnostic device 15 to diagnose the suitability (ability to be placed) of the target repeater 11A, first, the surrounding environmental conditions (temperature, humidity, vibration, radiation dose, radio wave intensity) and equipment performance of the target repeater 11A are confirmed, and the upper and lower limits to be set as thresholds for the environmental conditions are determined (S1).

[0038] Furthermore, when constructing the wireless communication area 12, it is necessary to design the layout to take into account noise-affecting devices 20 that are affected by radio wave α. Therefore, noise-affecting devices 20 that may be affected by radio wave α are extracted under environmental conditions (especially radio wave α), and radio wave analysis is performed to consider the placement of repeaters (target repeater 11A, other repeaters 11B, 11C, etc.) that avoid noise-affecting devices 20 (S2). In addition, the directivity of radio wave α of the repeaters (target repeater 11A, other repeaters 11B, 11C, etc.) and the radio wave strength of target repeater 11A are set (S3).

[0039] Next, the registration numbers of the repeaters (target repeater 11A, other repeaters 11B, 11C, etc.) whose placement locations have been determined by radio wave analysis are registered in the repeater diagnostic device 15 (S4). As a result, when the control unit 30 of the repeater diagnostic device 15 receives a signal from the repeater (target repeater 11A, other repeaters 11B, 11C, etc.) via the signal receiving unit 22, the small lamp 25 of the repeater diagnostic device 15 lights up.

[0040] Next, environmental thresholds are set in the repeater diagnostic device 15 (S5). Temperature, humidity, vibration, radiation dose, and radio wave intensity are determined from the permissible radio wave α intensity and the performance of the repeater in the wireless communication area 12, and these upper and lower limits are set as thresholds in the repeater diagnostic device 15. Next, the target repeater 11A and the other repeaters 11B and 11C... are placed on site, and the repeater diagnostic device 15 is connected to the target repeater 11A using cable 16 (S6).

[0041] Next, the control unit 30 of the repeater diagnostic device 15 displays the measured values ​​(radiation dose per hour and cumulative dose predicted for one year) from the dose sensor, which is the environmental sensor 21, on the display panel 23. At the same time, it calculates and determines an evaluation score regarding the suitability of the placement location of the target repeater 11A to the surrounding environmental conditions (S7), for example, using AI technology. If the threshold is exceeded for each of the environmental conditions (if each evaluation score is 5 points or more), the control unit 30 lights up the corresponding large lamp 24.

[0042] In step S7, the control unit 30 of the repeater diagnostic device 15 executes an environmental diagnostic mode if the sum of the evaluation scores for each environmental condition (total evaluation score) is 10 points or more, and operates at least one of the speaker 26, vibration device 27, and light-emitting device 28 according to the extent that the total evaluation score exceeds 10 points, changing the output state of sound, vibration, and light. The operator uses the output state of at least one of the sound from the speaker 26, vibration from the vibration device 27, and light from the light-emitting device 28 as an indicator to change the arrangement of the target repeater 11A so that these outputs decrease (S8). In this environmental diagnostic mode, when the total evaluation score for the environmental conditions falls below 10 points, the speaker 26, vibration device 27, and light-emitting device 28 stop.

[0043] In step S7, the control unit 30 of the repeater diagnostic device 15 executes a fine-tuning mode for placement when the total evaluation score of the environmental conditions is 5 points or more but less than 10 points. The control unit 30 operates at least one of the speaker 26, vibration device 27, and light-emitting device 28 according to the degree to which the total evaluation score exceeds 5 points, changing the output states of sound, vibration, and light. The operator uses the output state of at least one of the sound from the speaker 26, vibration from the vibration device 27, and light from the light-emitting device 28 as an indicator to fine-tune the placement of the target repeater 11A to a better placement environment by operating the placement adjustment means 32 on which the target repeater 11A is placed, for example, up, down, left, and right, so that these outputs decrease (S9). In this fine-tuning mode for placement, the speaker 26, vibration device 27, and light-emitting device 28 stop when the total evaluation score of the environmental conditions falls below 5 points.

[0044] After the rearrangement in step S8, the operator switches the mode of the repeater diagnostic device 15 from the environmental diagnostic mode to the fine-tuning mode, and uses the rearrangement adjustment means 32 to fine-tune the position of the target repeater 11A using at least one output state of sound from the speaker 26, depth from the vibration device 27, and light from the light-emitting device 28 as an indicator, so that the outputs (sound, vibration, light) decrease (S9).

[0045] In step S7, if the total evaluation score for the environmental conditions related to the placement of the target repeater 11A is less than 5 points, the control unit 30 of the repeater diagnostic device 15 completes the process, determining that the placement of the target repeater 11A is compliant (S10). Furthermore, after step S9, the control unit 30 recalculates the evaluation score for the compliance of each environmental condition related to the placement of the target repeater 11A, and if the total evaluation score is less than 5 points, it completes the process, determining that the placement of the target repeater 11A is compliant.

[0046] As described above, this embodiment provides the following effects (1) to (5). (1) The repeater diagnostic device 15 is configured such that the control unit 30 turns on or off the large lamp 24 depending on whether the environmental conditions (temperature, humidity, vibration, radiation dose, radio wave intensity) around the target repeater 11A exceed preset thresholds (whether each evaluation point is 5 points or more). The turning on or off of this large lamp 24 allows for confirmation (diagnosis) of the suitability of placement (suitability of placement) of the target repeater 11A to be placed in a location that is feasible in terms of environmental conditions and equipment performance, and consequently, the suitability of placement of the wireless communication repeater system 10 can be diagnosed.

[0047] (2) The repeater diagnostic device 15 is configured such that, depending on the extent to which the environmental conditions (temperature, humidity, vibration, radiation dose, radio wave intensity) around the target repeater 11A exceed a predetermined value (10 points in the total evaluation score in the environmental diagnostic mode, or 5 points in the total evaluation score in the fine-tuning of placement mode), at least one of the speaker 26, vibration device 27, and light-emitting device 28 is activated, causing at least one output state of sound from the speaker, vibration from the vibration device 27, and light from the light-emitting device 28 to change. By using at least one output state of sound from the speaker 26, vibration from the vibration device 27, and light from the light-emitting device 28 as indicators, the operator can easily change the placement of the target repeater 11A to a location that is feasible in terms of environmental conditions and equipment performance in the environmental diagnostic mode, and to a better location in the fine-tuning of placement mode.

[0048] (3) The control unit 30 of the repeater diagnostic device 15 uses AI or machine learning technology in particular to evaluate the suitability of the target repeater 11A's placement location to the surrounding environmental conditions by calculating an evaluation score. Based on this evaluation score, the control unit 30 confirms (diagnoses) the suitability of the target repeater 11A's placement location to the environmental conditions, and further activates at least one of the speaker 26, vibration device 27, and light-emitting device 28 to prompt a change in placement. As a result, the confirmation of suitability and the change in placement can be optimally implemented.

[0049] (4) The repeater diagnostic device 15 is equipped with a dose sensor which is an environmental sensor 21, and this dose sensor measures the radiation dose and cumulative dose around the target repeater 11A. Therefore, based on these measured values ​​of radiation dose, etc., it is possible to not only confirm (diagnose) the suitability of the placement of the target repeater 11A, but also to predict the time until radiation-induced failure of the target repeater 11A, other repeaters 11B, 11C, etc., antenna 17 and attenuation regulator 18.

[0050] (5) The repeater diagnostic device 15 is configured such that when other repeaters 11B, 11C, etc. are wirelessly connected to the target repeater 11A, the small lamps 25 corresponding to the connected other repeaters 11B, 11C, etc. and the target repeater 11A light up. Therefore, it is possible to easily confirm whether or not other repeaters 11B, 11C, etc. that were previously expected to be connected to the target repeater 11A based on radio wave analysis are wirelessly connected by the lighting up or turning off of the small lamps 25.

[0051] Although embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations can be made without departing from the spirit of the invention. Such substitutions, modifications, and combinations are included in the scope and spirit of the invention, as well as in the claims and their equivalents.

[0052] For example, if the control unit 30 of the repeater diagnostic device 15 determines that the placement of the target repeater 11A is unsuitable for the environmental conditions, it may use AI or machine learning technology to suggest a location where the placement of the target repeater 11A is suitable for the environmental conditions, using data previously diagnosed by the repeater diagnostic device 15. [Explanation of Symbols]

[0053] 10... Wireless communication repeater system, 11A... Target repeater, 11B, 11C... Other repeaters, 12... Wireless communication area, 15... Repeater diagnostic device, 21... Environmental sensor, 23... Display panel, 24... Large lamp (first display component), 25... Small lamp (second display component), 26... Speaker (notification device), 27... Vibration device (notification device), 28... Light-emitting device (notification device), 30... Control unit

Claims

1. A wireless communication repeater system in which radio waves are relayed between a target repeater and at least one other repeater to establish a wireless communication area, and a repeater diagnostic device is provided to connect to the target repeater, The relay diagnostic device includes a sensor that measures the radiation dose and cumulative dose around the target relay, A display panel is provided that can display information including the measured values ​​of the aforementioned sensor, A wireless communication repeater system characterized by comprising: a control unit that displays the measured values ​​of the sensor on the display panel and predicts the time until failure of the target repeater and the other repeaters based on the measured values ​​of the sensor.

2. A method for arranging a wireless communication repeater system in which radio waves are relayed between a target repeater and at least one other repeater to establish a wireless communication area, and a repeater diagnostic device is provided to connect to the target repeater, A relay diagnostic device is prepared, comprising: a first display component whose display can be changed according to the surrounding environmental conditions of the target relay; and a notification device whose state of at least one of vibration, sound, and light can be changed. First, the placement locations of the target repeater and the other repeaters are determined by radio wave analysis, and then the target repeater and the other repeaters are placed on site. Next, by checking the environmental conditions surrounding the target repeater based on the change in the first display component of the repeater diagnostic device, a change in the placement of the target repeater is considered. A method for arranging a wireless communication repeater system, characterized in that, when it is necessary to change the arrangement of the target repeater, the arrangement of the target repeater is changed using a change in at least one state of vibration, sound, and light from the notification device of the repeater diagnostic device as an indicator.

Images