Monitoring system, monitoring device, monitoring method, and program

Abstract

To provide a technology that prevents workers from overlooking when they are approaching a specific space.SOLUTION: A monitoring system is provided that includes: output means for outputting a virtual space that recreates a real space and a plurality of workers present in the real space to a display device; and attention alert means for warning a supervisor monitoring the plurality of workers via the display device when the distance between at least one of the plurality of workers and a set space that is set in the virtual space is less than a first predetermined value.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a monitoring system, a monitoring device, a monitoring method, and a program. [Background technology]

[0002] Patent Document 1 discloses a site management device that prevents workers from entering dangerous areas of a steel tower. Specifically, the site management device acquires the current location of the worker based on location information received from the worker's terminal. The site management device displays a steel tower structural diagram and the current location of the worker's terminal superimposed on a monitor. A manager watching the monitor of the site management device gives instructions to the worker using a microphone or the like as necessary. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-122988 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration of Patent Document 1, there is a risk that a worker may overlook the fact that he or she is approaching a space that the worker should not approach.

[0005] An object of the present disclosure is to provide a technology that prevents a worker from overlooking the fact that he or she is approaching a specific space. [Means for solving the problem]

[0006] an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; Including, A monitoring system is provided.

[0007] an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; Including, A monitoring device is provided.

[0008] The computer, outputting a virtual space that reproduces a real space and a plurality of workers existing in the real space to a display device; When a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value, an alert is issued to a supervisor monitoring the plurality of workers via the display device. A monitoring method is provided.

[0009] Computer, an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; To function as, Programs are offered. [Effects of the Invention]

[0010] According to the present disclosure, it is possible to prevent a worker from overlooking the fact that he or she is approaching a specific space. [Brief explanation of the drawings]

[0011] [Figure 1]FIG. 1 is a block diagram of a monitoring system. [Figure 2] 1 is a control flow of a monitoring system. [Figure 3] FIG. 1 illustrates a number of workers working at a substation. [Figure 4] FIG. 1 is a schematic diagram illustrating the configuration of a monitoring system. [Figure 5] FIG. 2 is a block diagram of a user terminal. [Figure 6] FIG. 2 is a block diagram of a monitoring device. [Figure 7] FIG. 2 is a data structure diagram of monitoring data. [Figure 8] FIG. 10 is a diagram showing an example of a screen output. [Figure 9] FIG. 10 is a diagram showing an example of a screen output. [Figure 10] FIG. 10 is a diagram showing an example of a screen output. [Figure 11] 1 is a control flow of a monitoring device. [Figure 12] 1 is a control flow of a monitoring device. DETAILED DESCRIPTION OF THE INVENTION

[0012] (Summary of the Disclosure) An outline of the present disclosure will be described below. Fig. 1 is a block diagram of a monitoring system 100. Fig. 2 is a control flow of the monitoring system 100.

[0013] 1, the monitoring system 100 includes an output means 101 that outputs a virtual space that reproduces a real space and a plurality of workers present in the real space to a display device. The monitoring system 100 also includes an attention calling means 102 that, when the distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value, calls the attention of a supervisor monitoring the plurality of workers via the display device.

[0014] Next, the operation of the monitoring system 100 will be described with reference to Fig. 2. The output means 101 outputs a virtual space that reproduces a real space and a plurality of workers present in the real space to a display device (S101). Next, the attention calling means 102 calls the attention of a supervisor monitoring the plurality of workers via the display device when the distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value (S102).

[0015] According to the above configuration, it is possible to prevent overlooking that a worker is approaching a specific space.

[0016] (First embodiment) Next, a first embodiment of the present disclosure will be described. FIG. 3 shows a plurality of workers 2 working at a substation 1. The space in which the substation 1 is installed is a specific example of a real space. A power plant or a factory may be installed in the real space instead of the substation 1. The substation 1 is provided with a plurality of substation equipment 3. The plurality of substation equipment 3 typically includes, but is not limited to, transformers, circuit breakers, disconnecting switches, lightning arresters, etc. The plurality of workers 2 each perform various tasks, such as maintenance and inspection of the plurality of substation equipment 3. For convenience of explanation, the plurality of workers 2 includes worker 2a, worker 2b, worker 2c, worker 2d, worker 2e, worker 2f, and worker 2g. Similarly, the plurality of substation equipment 3 includes substation equipment 3a, substation equipment 3b, substation equipment 3c, substation equipment 3d, substation equipment 3e, substation equipment 3f, substation equipment 3g, and substation equipment 3h.

[0017] When a worker 2 works or moves within a substation 1, the worker 2 may unwittingly approach the substation equipment 3. The substation equipment 3 is high-voltage equipment of tens of thousands of volts, and for the safety of the worker 2, it is unacceptable for the worker 2 to carelessly approach the substation equipment 3. Therefore, in this embodiment, a setting space 4 is set for each of the substation equipment 3. The setting space 4 is a space set to include the corresponding substation equipment 3. The setting space 4 is also called a danger area or danger space. The setting space 4 is a space that the worker 2 must not carelessly enter. The setting space 4 is typically defined as a rectangular parallelepiped space, but may also be defined as a cylindrical space.

[0018] 4 is a schematic diagram of a monitoring system 5. The monitoring system 5 includes a monitoring device 6 and a plurality of user terminals 7. The monitoring device 6 is typically configured to be able to communicate with the plurality of user terminals 7 via a WAN (Wide Area Network). However, instead of this, the monitoring device 6 may be configured to be able to communicate with the plurality of user terminals 7 via a LAN (Local Area Network).

[0019] The monitoring device 6 is an information terminal operated by a supervisor 8 who monitors multiple workers 2 working in the substation 1. The monitoring device 6 is typically a desktop personal computer, a laptop personal computer, or a tablet terminal. Each user terminal 7 is an information terminal carried by each worker 2 while working in the substation 1. Each user terminal 7 is typically a tablet terminal or a smartphone. The monitoring device 6 is configured to alert the supervisor 8 when any of the multiple workers 2 approaches the set space 4.

[0020] The user terminal 7 will be described with reference to FIG. 5. FIG. 5 shows a block diagram of the user terminal 7. As shown in FIG. 5, the user terminal 7 includes a processor 7a, a memory 7b, a communication interface 7c, a GPS module 7d, and a vital sensor 7e. The processor 7a can access the memory 7b. The processor 7a communicates with the monitoring device 6 via the communication interface 7c. The processor 7a reads and executes a program stored in the memory 7b. As a result, the processor 7a causes hardware such as the processor 7a to function as a location information acquisition unit 10, a biometric information acquisition unit 11, and a transmission unit 12.

[0021] The memory 7b is typically realized by a ROM (Read Only Memory), a RAM (Random Access Memory), a HDD (Hard Disc Drive), or an SSD (Solid State Drive). The memory 7b constitutes the worker ID storage unit 13. The worker ID storage unit 13 stores the worker ID, which is identification information of the worker 2 who carries the user terminal 7.

[0022] The location information acquisition unit 10 acquires current location information of the user terminal 7 using the GPS module 7d. The current location information typically indicates the current location of the user terminal 7 using longitude and latitude. The GPS module 7d is a specific example of a GNSS module (Global Navigation Satellite System). Other specific examples of GNSS modules include a GLONASS module (Global Navigation Satellite System), a Galileo module, a BeiDou module, and a QZSS module (Quasi-Zenith Satellite System). Instead of using the GPS module 7d, the location information acquisition unit 10 may acquire current location information of the user terminal 7 using an indoor positioning module. The indoor positioning module may be, for example, one that performs indoor positioning using radio waves such as wireless LAN or Bluetooth (registered trademark), one that performs positioning using RFID or markers, or one that performs positioning using geomagnetism.

[0023] The biological information acquisition unit 11 uses the vital sensor 7e to acquire biological information of the user terminal 7. The biological information of the user terminal 7 is typically, but is not limited to, the heart rate and body temperature of the user terminal 7.

[0024] The transmission unit 12 transmits the user information to the monitoring device 6 at predetermined intervals. The user information includes the current location information and biometric information of the user terminal 7, and the worker ID.

[0025] Next, the monitoring device 6 will be described with reference to FIG. 6. FIG. 6 shows a block diagram of the monitoring device 6. As shown in FIG. 6, the monitoring device 6 includes a processor 6a, a memory 6b, a communication interface 6c, an LCD (Liquid Crystal Display) 6d, and an input interface 6e. The monitoring device 6 may be configured as a single device or may be realized by distributed processing using multiple devices. The processor 6a can access the memory 6b. The processor 6a communicates with each user terminal 7 via the communication interface 6c. The processor 6a reads and executes a program stored in the memory 6b. As a result, the processor 6a causes hardware such as the processor 6a to function as a user information acquisition unit 20, a monitoring image generation unit 21, a monitoring image output unit 22, an intrusion determination unit 23, an approach determination unit 24, and an alert unit 25.

[0026] The memory 6b is typically realized by a ROM, RAM, HDD, or SSD. The memory 6b configures a virtual space information storage unit 30, a setting space information storage unit 31, and a monitoring data storage unit 32.

[0027] The LCD 6d is a specific example of a display device. The input interface 6e is typically a pointing device such as a mouse and a keyboard.

[0028] The virtual space information storage unit 30 stores virtual space information that defines a virtual space that reproduces the real space in which the substation 1 is installed. The virtual space is a three-dimensional digital space in which the substation 1 is reproduced three-dimensionally on a computer. The virtual space may be created from a point cloud obtained by measuring the distance of the real space using LiDAR (Light Detection and Ranging) or Radar (Radio Detection and Ranging), or may be created based on design drawings of the real space. The virtual space is defined by a virtual space coordinate system. The virtual space information storage unit 30 further stores coordinate transformation data that converts longitude and latitude information of the real space into coordinate information in the virtual space coordinate system.

[0029] The setting space information storage unit 31 stores setting space information that defines a plurality of setting spaces 4 in the virtual space. The setting space information of each setting space 4 is defined by the virtual space coordinate system.

[0030] The monitoring data storage unit 32 stores monitoring data for monitoring multiple workers 2. Fig. 7 shows an example of the monitoring data. As shown in Fig. 7, the monitoring data is composed of the worker ID, current location, proficiency level, movement direction, movement speed, heart rate, body temperature, number of intrusions, intrusion flag, separation distance, approach flag, and priority for each of the multiple workers 2.

[0031] The worker ID is identification information of the corresponding worker 2. The current location is the current location of the corresponding worker 2 and is expressed by longitude and latitude. The proficiency level is the proficiency level of the corresponding worker 2, and is expressed, for example, by the number of years of work experience of the corresponding worker 2. Alternatively, the proficiency level may be expressed by one of five proficiency levels. The movement direction is the movement direction of the corresponding worker 2, and is expressed as an azimuth angle, for example. The movement speed is the movement speed of the corresponding worker 2. The heart rate is the corresponding heart rate of worker 2. The body temperature is the body temperature of the corresponding worker 2. The number of intrusions is the number of times that the corresponding worker 2 has in the past intruded into any of the set spaces 4. The number of intrusions may be the total number of intrusions from the time the corresponding worker 2 began working on maintenance and inspection of the substation 1 to the present, or may be the number of times that the corresponding worker 2 intruded into any of the set spaces 4 in the previous year or month. The intrusion flag is a flag that is set to "1" when the corresponding worker 2 is currently intruding into the setting space 4, and is set to "0" when the worker 2 is not currently intruding. The separation distance is the distance from the setting space 4 closest to the corresponding worker 2 to that worker 2. The approach flag is a flag that is set to "1" when the corresponding worker 2 is currently approaching the set space 4, and is set to "0" when the worker 2 is not currently approaching the set space 4. For example, a worker 2 approaching the set space 4 means that the distance between the worker 2 and the set space 4 is less than 500 centimeters. 500 centimeters is a specific example of the first predetermined value. The first predetermined value may be 100 centimeters or 1000 centimeters, and can be changed by the monitor 8 as appropriate. The priority indicates the order of precedence when highlighting on the LCD 6d the worker 2 who has entered or is approaching the setting space 4. In this embodiment, the priority is expressed by a number ranging from 0 to 10, where "0" means the highest priority and "10" means the lowest priority.

[0032] The user information acquisition unit 20 acquires user information from multiple user terminals 7. The user information consists of a worker ID, current location information, and biometric information. When the user information acquisition unit 20 acquires user information from each user terminal 7, it updates the current location, heart rate, and body temperature of the worker 2 in the monitoring data based on the user information. In addition, the user information acquisition unit 20 calculates the movement direction and movement speed of the worker 2 based on the difference between the current location before the update and the current location after the update, and updates the movement direction and movement speed of the worker 2 in the monitoring data.

[0033] The surveillance image generating unit 21 reconstructs a virtual space on a computer based on the virtual space information stored in the virtual space information storage unit 30, and places multiple workers 2 in the reconstructed virtual space, for example in the form of icons, based on the current locations of the surveillance data. At this time, the surveillance image generating unit 21 converts the current locations of the workers 2 into the virtual space coordinate system using the coordinate conversion data stored in the virtual space information storage unit 30. The surveillance image generating unit 21 then generates a surveillance image by capturing an image of the virtual space from any viewpoint and any viewing angle in the virtual space. The surveillance image generating unit 21 may change the viewpoint and viewing angle when capturing an image of the virtual space in response to an instruction from the observer 8.

[0034] The monitoring image output unit 22 outputs the monitoring image generated by the monitoring image generation unit 21 to the LCD 6d. FIG. 8 shows an example of a monitoring image 21A output to the LCD 6d. As shown in FIG. 8, the monitoring image 21A generated by the monitoring image generation unit 21 may include a movement vector indicating the movement direction and movement speed of each worker 2. Note that, as an example, the monitoring image generation unit 21 displays the monitoring image 21A on a web browser 39 displayed on the LCD 6d.

[0035] The intrusion determination unit 23 determines, for each of the multiple workers 2, based on the monitoring data and the set space information, whether or not the worker 2 has intruded into any of the set spaces 4. The intrusion determination unit 23 updates the intrusion flag of the monitoring data based on the determination result.

[0036] The approach determination unit 24 determines, for each of the multiple workers 2, based on the monitoring data and the set space information, whether or not the worker 2 is approaching any of the set spaces 4. The approach determination unit 24 updates the approach flag of the monitoring data based on the determination result.

[0037] When at least one of the multiple workers 2 approaches one of the set spaces 4, the warning unit 25 issues a warning to the supervisor 8 monitoring the multiple workers via the LCD 6d. Specifically, this is as follows: The warning unit 25 issues a warning to the supervisor 8 when the intrusion flag of at least one of the multiple workers 2 is "1" based on the monitoring data. Furthermore, the warning unit 25 issues a warning to the supervisor 8 when the approach flag of at least one of the multiple workers 2 is "1" based on the monitoring data.

[0038] The attention drawing unit 25 may draw the attention of the supervisor 8 by various methods. For example, the attention drawing unit 25 may draw the attention of the supervisor 8 by audio output. In the present embodiment, the attention drawing unit 25 draws the attention of the supervisor 8 by enlarging the image of the worker 2 who has entered or approached the set space 4 on the LCD 6d. The enlarged image is a specific example of highlighting. As shown in FIG. 9 , the attention drawing unit 25 horizontally narrows the monitoring image display area 40 for displaying the monitoring image 21A generated by the monitoring image generating unit 21 in the web browser 39 to generate an enlarged image display area 41 on the right side of the monitoring image display area 40. Then, the attention drawing unit 25 enlarges and displays the worker 2 who has entered or approached the set space 4 in the enlarged image display area 41. Specifically, when multiple workers 2 have entered or approached the set space 4, the attention drawing unit 25 sets the priority of highlighting the multiple workers 2 according to a setting flow described below. The attention drawing unit 25 then generates enlarged monitoring images 25A of the corresponding multiple workers 2. The attention drawing unit 25 then displays the multiple enlarged monitoring images 25A vertically arranged in the enlarged image display area 41 in descending order of priority.

[0039] 10, the attention drawing unit 25 may further enlarge and display the enlarged monitoring image 25A selected by the monitor 8 from the plurality of enlarged monitoring images 25A in the monitoring image display area 40. At this time, the attention drawing unit 25 may also display the monitoring image 21A in a reduced size in the upper right corner of the monitoring image display area 40.

[0040] Next, the operation of the monitoring device 6 will be described with reference to FIGS.

[0041] First, the user information acquisition unit 20 acquires user information from multiple user terminals 7 (S300) and updates the monitoring data based on the acquired user information. Next, the monitoring image generation unit 21 generates a monitoring image 21A based on the virtual space information and the user information (S310). Next, the monitoring image output unit 22 outputs the monitoring image 21A generated by the monitoring image generation unit 21 to the web browser 39 on the LCD 6d (S320). Next, the intrusion determination unit 23 determines, for each of the multiple workers 2, whether that worker 2 has intruded into any of the set spaces 4 based on the monitoring data and the set space information (S330), and updates the monitoring data based on the determination result. Next, the approach determination unit 24 determines, for each of the multiple workers 2, whether that worker 2 has approached any of the set spaces 4 based on the monitoring data and the set space information (S340), and updates the monitoring data based on the determination result.

[0042] Next, if there are two or more workers 2 who have entered or approached the set space 4, the attention calling unit 25 sets priorities for enlarging and displaying the corresponding two or more workers 2 (S350).

[0043] 12 shows a flow of setting priorities by the attention calling unit 25. First, the attention calling unit 25 sets the priority of the worker 2 who has invaded the set space 4 to the highest (S500). As shown in FIG. 7, the intrusion flag of the worker 2 whose worker ID is "7" is "1". Therefore, the attention calling unit 25 sets the priority of the worker 2 whose worker ID is "7" to the highest, "0".

[0044] Next, the attention alert unit 25 sets the priority of the worker 2 approaching the set space 4 according to the distance from the worker 2 (S510). Hereinafter, the worker 2 approaching the set space 4 will also be referred to as the approaching worker 2. The attention alert unit 25 sets the priority of the approaching worker 2 according to the distance from the worker 2 so that the shorter the distance from the worker 2, the higher the priority, and the longer the distance from the worker 2, the lower the priority. As shown in FIG. 7, the approach flags of the workers 2 with the worker IDs "2," "3," "5," and "6" are "1." All of the workers 2 with the worker IDs "2," "3," "5," and "6" can be said to be approaching workers 2. The attention alert unit 25 sets the priority of the workers 2 with the worker IDs "2," "3," "5," and "6" according to the distance from the worker 2.

[0045] Next, if there are multiple approaching workers 2, the warning unit 25 compares the separation distances of the multiple approaching workers 2 and determines whether there is a combination of approaching workers 2 with a small difference in separation distance (S520). A small difference in separation distance typically means that the difference in separation distance is less than 100 centimeters. 100 centimeters is a specific example of the second predetermined value. As shown in FIG. 7, the separation distances of approaching workers 2 with worker IDs "2," "3," and "6" are 62 centimeters at minimum and 132 centimeters at maximum, so that approaching workers 2 with worker IDs "2," "3," and "6" form a combination of approaching workers 2 with a small difference in separation distance.

[0046] If the result of step S520 is NO, the attention calling unit 25 proceeds to step S360. On the other hand, if the result of step S520 is YES, the attention calling unit 25 corrects the priority of the approaching worker 2 whose separation distance is small based on the monitoring data. Specifically, the attention calling unit 25 sets the priority of the approaching worker 2 who is moving away from the set space 4 that serves as the reference for the separation distance, among the approaching workers 2 whose separation distance is small, to be lower than the priority of the approaching worker 2 who is moving toward the set space 4 that serves as the reference for the separation distance (S530). In this embodiment, the priority of the approaching worker 2 who is moving away from the set space 4 that serves as the reference for the separation distance, among the approaching workers 2 whose separation distance is small, is set to be the lowest.

[0047] Next, the attention calling unit 25 sets the priority of the approaching workers 2 whose separation distance is small in order of proficiency (S540). Specifically, the attention calling unit 25 sets the priority of the approaching workers 2 whose separation distance is small in order of proficiency so that the higher the proficiency level, the lower the priority, and the lower the proficiency level, the higher the priority. As shown in FIG. 7 , the proficiency level of the approaching worker 2 whose worker ID is "2" is 4, the proficiency level of the approaching worker 2 whose worker ID is "3" is 31, and the proficiency level of the approaching worker 2 whose worker ID is "6" is 32. Therefore, the priority of the approaching worker 2 whose worker ID is "2" is set to "1," the priority of the approaching worker 2 whose worker ID is "3" is set to "2," the priority of the approaching worker 2 whose worker ID is "6" is set to "3." This is because the lower the proficiency level of the worker 2, the more likely it is that the worker 2 will mistakenly reach the substation equipment 3.

[0048] Next, the attention issuing unit 25 determines whether there is a combination of approaching workers 2 with the same level of proficiency among the multiple approaching workers 2 (S550). If the result in step S550 is NO, the attention issuing unit 25 proceeds to step S360. On the other hand, if the result in step S550 is YES, the attention issuing unit 25 sets the priority of the multiple approaching workers 2 that make up the combination of approaching workers 2 with the same level of proficiency in order of their moving speed (S560). Specifically, the attention issuing unit 25 sets the priority of the multiple approaching workers 2 that make up the combination of approaching workers 2 with the same level of proficiency so that the higher the moving speed, the higher the priority, and the lower the moving speed, the lower the priority. This is because the faster the moving speed of the approaching worker 2, the more limited the time it takes to reach the substation 3.

[0049] Next, the attention alert unit 25 determines whether there is a combination of approaching workers 2 with the same movement speed among the multiple approaching workers 2 (S570). If the result in step S570 is NO, the attention alert unit 25 proceeds to step S360. On the other hand, if the result in step S570 is YES, the attention alert unit 25 sets the priority of multiple approaching workers 2 constituting a combination of approaching workers 2 with the same movement speed in order of their vital data (S580). Specifically, the attention alert unit 25 sets the priority of multiple approaching workers 2 constituting a combination of approaching workers 2 with the same movement speed so that the higher the heart rate, the higher the priority, and the lower the heart rate, the lower the priority. This is because workers 2 with higher heart rates are more likely to be in a tense state and to lack attention. Alternatively, the attention alert unit 25 sets the priority of multiple approaching workers 2 constituting a combination of approaching workers 2 with the same movement speed so that the higher the body temperature, the higher the priority, and the lower the body temperature, the lower the priority. This is because the higher the body temperature of Worker 2, the more likely he or she is to lose focus due to poor physical condition.

[0050] Next, the attention calling unit 25 determines whether there is a combination of approaching workers 2 with the same vital data among the multiple approaching workers 2 (S590). If the result in step S590 is NO, the attention calling unit 25 proceeds to step S360. On the other hand, if the result in step S590 is YES, the attention calling unit 25 sets the priority of the multiple approaching workers 2 that make up the combination of approaching workers 2 with the same vital data in order of the number of intrusions (S600). Specifically, the attention calling unit 25 sets the priority of the multiple approaching workers 2 that make up the combination of approaching workers 2 with the same vital data so that the more the number of intrusions, the higher the priority, and the fewer the number of intrusions, the lower the priority. This is because the more intrusions a worker 2 has, the more likely he or she is to be lacking in attention. Then, the attention calling unit 25 proceeds to step S360.

[0051] Next, the attention drawing unit 25 generates an enlarged monitoring image 25A of the worker 2 who has entered or approached the set space 4 (S360). Next, the attention drawing unit 25 outputs the generated enlarged monitoring image 25A to the enlarged image display area 41 (S370). At this time, if there is more than one worker 2 who has entered or approached the set space 4, the attention drawing unit 25 determines the display order of the multiple enlarged monitoring images 25A in the enlarged image display area 41 based on the priority set in step S350. Typically, the higher the priority of the worker 2 corresponding to the enlarged monitoring image 25A, the higher the attention drawing unit 25 displays that enlarged monitoring image 25A, and the lower the priority of the worker 2 corresponding to the enlarged monitoring image 25A, the lower the attention drawing unit 25 displays that enlarged monitoring image 25A.

[0052] When a plurality of workers 2 have entered or approached the set space 4, the attention calling unit 25 may determine the size of the display area of ​​the plurality of enlarged monitoring images 25A in the enlarged image display region 41 based on the priorities set in step S350. In this case, the attention calling unit 25 typically increases the display area of ​​the enlarged monitoring image 25A as the priority of the worker 2 corresponding to the enlarged monitoring image 25A increases, and decreases the display area of ​​the enlarged monitoring image 25A as the priority of the worker 2 corresponding to the enlarged monitoring image 25A decreases.

[0053] Next, the attention drawing unit 25 determines whether any of the enlarged monitoring images 25A has been selected by the monitor 8 (S380). If the answer is NO in step S380, the attention drawing unit 25 returns the process to step S300. On the other hand, if the answer is YES in step S380, the attention drawing unit 25 further enlarges and displays the selected enlarged monitoring image 25A in the monitoring image display area 40 (S390), as shown in FIG. 10, and also reduces and displays the monitoring image 21A in the upper right corner of the monitoring image display area 40, and returns the process to step S300.

[0054] The first embodiment of the present disclosure has been described above. The above embodiment has the following features.

[0055] The monitoring device 6 is a specific example of a monitoring system. The monitoring device 6 includes a monitoring image output unit 22 (output means) that outputs a virtual space that reproduces a real space and multiple workers 2 present in the real space to an LCD 6d (display device), and an alert unit 25 (alert means) that alerts a supervisor 8 monitoring the multiple workers 2 via the LCD 6d when the distance between at least one of the multiple workers 2 and a set space 4 set in the virtual space is less than 500 centimeters (a first predetermined value). This configuration makes it possible to prevent overlooking that a worker is approaching a specific space.

[0056] Furthermore, the attention calling unit 25 highlights the approaching worker 2 on the LCD 6d. Specifically, the attention calling unit 25 enlarges and displays the approaching worker 2 on the LCD 6d. With the above configuration, the observer 8 can visually recognize the presence of the approaching worker 2.

[0057] Furthermore, when there are multiple approaching workers 2, the attention calling unit 25 highlights the multiple approaching workers 2 on the LCD 6d according to the distance between each of the multiple approaching workers 2. Specifically, the attention calling unit 25 sets a priority for highlighting each of the multiple approaching workers 2 according to the distance between each of the multiple approaching workers 2. With the above configuration, approaching workers 2 who are relatively likely to enter the set space 4 can be highlighted on the LCD 6d.

[0058] Furthermore, if there is a combination of approaching workers 2 where the difference in separation distance between them is less than 100 centimeters (a second predetermined value), the warning unit 25 sets a priority for highlighting each of the approaching workers 2 belonging to the combination of approaching workers 2 according to the proficiency level, movement direction, movement speed, heart rate, body temperature, and number of intrusions of each of the approaching workers 2 belonging to the combination of approaching workers 2. With the above configuration, the priority of the approaching workers 2 can be optimized even when the separation distance between the approaching workers 2 is small.

[0059] Furthermore, when the multiple approaching workers 2 belonging to the combination of approaching workers 2 include an approaching worker 2 (worker 2f in FIG. 8) approaching the set space 4 and an approaching worker 2 (worker 2g in FIG. 8) moving away from the set space 4, the attention calling unit 25 sets the priority of highlighting the approaching worker 2 (worker 2f) approaching the set space 4 higher than the priority of highlighting the approaching worker 2 (worker 2g) moving away from the set space 4. With the above configuration, the priority of the multiple approaching workers 2 can be optimized based on the movement direction of the approaching workers 2.

[0060] In the above example, the program can be stored and supplied to a computer using various types of non-transitory computer-readable media. Non-transitory computer-readable media include various types of tangible storage media. Non-transitory computer-readable media include, for example, magnetic recording media, magneto-optical recording media, CD-ROMs (Read Only Memory), CD-Rs, CD-R / Ws, and semiconductor memories. Semiconductor memories include, for example, mask ROMs, PROMs (Programmable ROMs), EPROMs (Erasable PROMs), flash ROMs, and RAMs (Random Access Memory). The program may also be supplied to a computer by various types of transient computer-readable media. Examples of transient computer-readable media include electrical signals, optical signals, and electromagnetic waves. The transient computer-readable media can be supplied to a computer via wired communication paths such as electrical wires and optical fibers, or wireless communication paths.

[0061] Although the present disclosure has been described above with reference to the embodiments, the present disclosure is not limited to the above-described embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present disclosure within the scope of the present disclosure.

[0062] Each drawing is merely an example for describing one or more embodiments. Each drawing may relate not only to one particular embodiment, but also to one or more other embodiments. As will be understood by those skilled in the art, various features or steps described with reference to any one drawing can be combined with features or steps shown in one or more other drawings to create, for example, an embodiment not explicitly shown or described. Not all features or steps shown in any one drawing are necessary to describe an exemplary embodiment, and some features or steps may be omitted. The order of steps described in any drawing may be changed as appropriate.

[0063] Some or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes. (Appendix 1) an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; Including, Surveillance system. (Appendix 2) 10. The monitoring system of claim 1, The attention-drawing means highlights on the display device the worker whose separation distance is less than the first predetermined value. Surveillance system. (Appendix 3) 3. The monitoring system of claim 2, further comprising: The attention drawing means displays an enlarged image of the worker whose separation distance is less than the first predetermined value on the display device. Surveillance system. (Appendix 4) 3. The monitoring system of claim 2, further comprising: If there are a plurality of workers whose separation distance is less than the first predetermined value, the attention drawing means highlights on the display device the plurality of workers whose separation distances are less than the first predetermined value in accordance with the separation distances of each of the plurality of workers whose separation distances are less than the first predetermined value. Surveillance system. (Appendix 5) 5. The monitoring system of claim 4, the attention drawing means sets priorities of the highlighting for each of the plurality of workers whose separation distance is less than the first predetermined value in accordance with the separation distance for each of the plurality of workers whose separation distance is less than the first predetermined value. Surveillance system. (Appendix 6) 6. The monitoring system of claim 5, Among the plurality of workers whose separation distance is less than the first predetermined value, there is a combination of workers whose difference in separation distance is less than a second predetermined value, The attention-calling means is setting a priority of the highlighting for each of the plurality of workers belonging to the combination in accordance with the proficiency level, movement direction, movement speed, heart rate, body temperature, and number of intrusions for each of the plurality of workers belonging to the combination; Surveillance system. (Appendix 7) 7. The monitoring system of claim 6, further comprising: When the plurality of workers belonging to the combination includes a worker approaching the set space and a worker moving away from the set space, The attention drawing means sets a priority of the highlighting of a worker approaching the set space higher than a priority of the highlighting of a worker moving away from the set space. Surveillance system. (Appendix 8) an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; Including, Monitoring equipment. (Appendix 9) The computer, outputting a virtual space that reproduces a real space and a plurality of workers existing in the real space to a display device; When a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value, an alert is issued to a supervisor monitoring the plurality of workers via the display device. Monitoring method. (Appendix 10) Computer, an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; To function as, program.

[0064] Some or all of the elements (e.g., configurations and functions) described in Supplementary Notes 2 to 7 that are dependent on Supplementary Notes 1 may also be dependent on Supplementary Notes 8 to 10 in the same dependency relationship as Supplementary Notes 2 to 7. Some or all of the elements described in any Supplementary Note may be applied to various hardware, software, recording means for recording software, systems, and methods. [Explanation of symbols]

[0065] 1. Substation 2. Workers 2a worker 2b worker 2c Worker 2d worker 2e Worker 2F Worker 2g worker 2 Approach worker 3. Substation equipment 3a Substation equipment 3b Substation equipment 3c Substation equipment 3d substation equipment 3e Substation equipment 3F Substation Equipment 3G substation equipment 3h substation equipment 4 Setting space 5. Surveillance System 6 Monitoring equipment 6a processor 6b Memory 6c Communication Interface 6d LCD 6e Input Interface 7 User terminals 7a processor 7b Memory 7c Communication Interface 7d GPS module 7e Vital Sensor 8 Overseer 10 Location information acquisition section 11 Biometric information acquisition unit 12 Transmitter 13 Worker ID storage section 20 User information acquisition section 21 Surveillance image generation unit 21A Surveillance Image 22 Surveillance image output unit 23 Intrusion detection section 24 Approach judgment part 25 Alert section 25A Enlarged monitoring image 30 Virtual space information storage unit 31 Setting space information storage unit 32 Monitoring data storage unit 39 Web Browser 40 Surveillance image display area 41 Enlarged image display area

Claims

1. an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; Including, Surveillance system.

2. 2. The monitoring system of claim 1, the attention-drawing means highlights on the display device the worker whose separation distance is less than the first predetermined value. Surveillance system.

3. 3. The monitoring system of claim 2, the attention-drawing means enlarges and displays on the display device the worker whose separation distance is less than the first predetermined value. Surveillance system.

4. 3. The monitoring system of claim 2, When there are a plurality of workers whose separation distance is less than the first predetermined value, the attention drawing means highlights on the display device the plurality of workers whose separation distances are less than the first predetermined value in accordance with the separation distances of each of the plurality of workers whose separation distances are less than the first predetermined value. Surveillance system.

5. 5. The monitoring system of claim 4, the attention drawing means sets priorities of the highlighting for each of the plurality of workers whose separation distance is less than the first predetermined value in accordance with the separation distance for each of the plurality of workers whose separation distance is less than the first predetermined value. Surveillance system.

6. 6. The monitoring system of claim 5, Among the plurality of workers whose separation distance is less than the first predetermined value, there is a combination of workers whose difference in separation distance is less than a second predetermined value, The attention-calling means is setting a priority of the highlighting for each of the plurality of workers belonging to the combination in accordance with the proficiency level, movement direction, movement speed, heart rate, body temperature, and number of intrusions for each of the plurality of workers belonging to the combination; Surveillance system.

7. 7. The monitoring system of claim 6, When the plurality of workers belonging to the combination includes a worker approaching the set space and a worker moving away from the set space, The attention drawing means sets a priority of the highlighting of a worker approaching the set space higher than a priority of the highlighting of a worker moving away from the set space. Surveillance system.

8. an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; Including, Monitoring equipment.

9. The computer outputting a virtual space that reproduces a real space and a plurality of workers existing in the real space to a display device; When a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value, an alert is issued to a supervisor monitoring the plurality of workers via the display device. Monitoring method.

10. Computer, an output means for outputting, to a display device, a virtual space that reproduces a real space and a plurality of workers that exist in the real space; an alerting means for alerting a supervisor monitoring the plurality of workers via the display device when a distance of at least one of the plurality of workers from a set space set in the virtual space is less than a first predetermined value; To function as, program.

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