Maintenance task support device and maintenance task support method

Abstract

To properly implement a maintenance work in a priority area with high need of maintenance, by using a working robot and not depending on manpower.SOLUTION: A maintenance task support device (2) comprises: a statistical information acquisition section (21) for acquiring statistical information related to a necessity level of maintenance for a maintenance object; an area setting section (24) for setting, as a priority area, an area which includes a predetermined number or more of maintenance objects that have been judged to have a necessity level higher than a predetermined threshold by a judgement section (22); and a maintenance planning section (25) for planning at least either a travel route of a self-propelled working robot for implementing a maintenance work, or an implementation content of a maintenance work using a working robot, so that a necessity level of a maintenance object included in the priority area is reduced.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a maintenance work support device and the like for supporting maintenance work.

Background Art

[0002] In facilities such as office buildings and commercial facilities, generally, for example, workers are dispatched to maintenance targets such as passageways, rooms, toilets, windows, stairs, and various facilities, and maintenance work such as cleaning, replacement, inspection, and maintenance is performed.

[0003] Regarding cleaning, for example, based on image information data from cameras installed in the facility, the degree of dirt at the cleaning location is determined, and based on the degree of dirt, a work procedure including the number of workers and equipment at the cleaning location is created. A technique is disclosed (Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the technique described in Patent Document 1, when the dirt at the cleaning location is severe, it is necessary to increase the number of workers. For this reason, it is necessary to secure extra workers, which may cause waste. In addition, recently, self-propelled work robots capable of performing maintenance work have emerged, but the technique described in Patent Document 1 does not consider assigning work to work robots.

[0006] One aspect of the present invention aims to appropriately perform maintenance work in key areas with high maintenance needs using work robots without relying on manual labor.

Means for Solving the Problems

[0007] In order to solve the above problems, a maintenance work support device according to an aspect of the present invention includes an acquisition unit that acquires statistical information regarding the necessity of maintenance for a maintenance target, a determination unit that determines, for each of the maintenance targets, whether or not the necessity is higher than a predetermined threshold based on the statistical information, a setting unit that sets, as a key area, an area in which there are a predetermined number or more of the maintenance targets for which it is determined that the necessity is higher than the predetermined threshold, and a planning unit that plans at least one of a travel route of a self-propelled work robot that performs maintenance work and the content of the maintenance work performed by the work robot so that the necessity of the maintenance target included in the key area decreases.

[0008] Further, a maintenance work support method according to another aspect of the present invention is a maintenance work support method in a maintenance work support device executed by one or more computers, the method including an acquisition step of acquiring statistical information regarding the necessity of maintenance for a maintenance target, a determination step of determining, for each of the maintenance targets, whether or not the necessity is higher than a predetermined threshold based on the statistical information, a setting step of setting, as a key area, an area in which there are a predetermined number or more of the maintenance targets for which it is determined that the necessity is higher than the predetermined threshold, and a planning step of planning at least one of a travel route of a self-propelled work robot that performs maintenance work and the content of the maintenance work performed by the work robot so that the necessity of the maintenance target included in the key area decreases.

Effects of the Invention

[0009] According to one aspect of the present invention, maintenance work in a key area where the necessity of maintenance is high can be appropriately performed using a work robot without relying on human hands.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described in detail. For the sake of convenience of explanation, members having the same functions as those shown in each embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

[0012] 〔Embodiment 1〕 An embodiment of the present invention will be described with reference to FIGS. 1 to 5.

[0013] (Maintenance Work Support System) FIG. 1 is a block diagram showing an overview of the maintenance work support system according to the present embodiment. The maintenance work support system 1 of the present embodiment supports maintenance work in various facility PLs such as office buildings, factories, and commercial facilities. The above-mentioned maintenance work includes various maintenance methods according to various maintenance targets MO in the above-mentioned facilities, such as cleaning of floors, toilets, stairs, handrails, etc., collection of garbage in trash cans, replacement of toilet paper, window wiping, lawn mowing, room tidying, inspection and maintenance of various equipment.

[0014] As shown in FIG. 1, the maintenance work support system 1 includes a maintenance work support device 2, a sensor 3, an inspection terminal 4, an implementation request terminal 5 (information terminal), and a work robot 6b. The maintenance work support device 2 creates a maintenance plan for each maintenance target MO based on various data acquired from the maintenance target MO via the sensor 3, the inspection terminal 4, and the implementation request terminal 5, and instructs the work staff 6 to perform maintenance work based on the above-mentioned maintenance plan. Thereby, the work staff 6 moves to the maintenance target MO and performs maintenance work during the time zone determined by the above-mentioned maintenance plan.

[0015] The maintenance work support device 2 is communicably connected to the sensor 3, the inspection terminal 4, and the implementation request terminal 5 via a communication network (not shown) such as the Internet. The work staff 6 includes a worker 6a and a self-propelled work robot 6b that performs maintenance work, and the maintenance work support device 2 is communicably connected to the terminal of the worker 6a and the work robot 6b via a communication network (not shown) such as the Internet. The work robot 6b may be a vacuum robot, a scrubber robot, a toilet cleaning robot, a staircase cleaning robot, a window wiping robot, a lawn mowing robot, etc., according to the type of maintenance.

[0016] Sensor 3 senses the state of the maintenance target MO. Typical examples of Sensor 3 include a dust sensor, a water wetting sensor, an odor sensor, etc. Sensor 3 transmits the sensor data obtained by the above sensing to the maintenance work support device 2. Sensor 3 may be a sensor provided on the work robot 6b, or may be a sensor installed in the vicinity of the maintenance target MO. Further, Sensor 3 may be a camera, and in this case, the above sensor data may be image data obtained by photographing the state of the maintenance target MO with the above camera.

[0017] Furthermore, Sensor 3 includes a crowd flow sensor that detects the crowd flow at the location where the maintenance target MO is located and a people count sensor that counts the number of people. Note that a camera may be provided instead of the above crowd flow sensor or people count sensor, and the maintenance work support device 2 may process the image of the above camera to detect the above crowd flow or the above number of people.

[0018] The inspection terminal 4 transmits the inspection result data obtained by inspecting the degree of contamination of the maintenance target MO to the maintenance work support device 2. The above inspection may be a wiping inspection. The above wiping inspection may be an ATP wiping inspection that is quantified based on the amount of ATP (adenosine triphosphate).

[0019] Also, the above wiping inspection may be an inspection that is quantified based on the amount of at least one of ATP, ADP (adenosine diphosphate), and AMP (adenosine monophosphate), or the total amount of at least two of them. Also, the above wiping inspection may be an inspection that is quantified based on the number of microorganisms. Also, the above inspection may be an inspection that uses a particle counter to count the particles in the space of the maintenance target MO. Note that the wiping inspection may be performed by a person or by the work robot 6b.

[0020] The maintenance request terminal 5 receives an operation request for maintenance on the maintenance target MO. When the maintenance request terminal 5 receives the above operation, it transmits a maintenance implementation request for the maintenance target MO to the maintenance service support device 2. The maintenance request terminal 5 may be a fixed terminal installed near the maintenance target MO, or a mobile terminal such as a smartphone. In the case of a mobile terminal, the above operation may be received by the mobile terminal reading an information code (for example, a two-dimensional code such as a QR code (registered trademark)) installed near the maintenance target MO. Also, the above operation may be received by a dedicated application executed on the maintenance request terminal 5.

[0021] (Maintenance service support device) Figure 2 is a block diagram showing the schematic configuration of the maintenance service support device 2. As shown in Figure 2, the maintenance service support device 2 includes a control unit 10, a storage unit 11, and a communication unit 12.

[0022] The control unit 10 comprehensively controls the operations of various components of the maintenance service support device 2, and is configured by a computer including, for example, a CPU (Central Processing Unit) and a memory. The operation control of various components is performed by causing the computer to execute a control program. The details of the control unit 10 will be described later.

[0023] The storage unit 11 records information and is configured by a storage device such as a hard disk or a flash memory. The communication unit 12 transmits and receives information to and from the sensor 3, the inspection terminal 4, the maintenance request terminal 5, and the work staff 6 (the terminal of the worker 6a and the work robot 6b) via a communication network (not shown). The communication unit 12 includes a communication device such as a transmission and reception circuit.

[0024] In this embodiment, the control unit 10 includes a necessity acquisition unit 20 (acquisition unit), a statistical information acquisition unit 21 (acquisition unit), a determination unit 22, a map creation unit 23 (creation unit), an area setting unit 24 (setting unit), a maintenance planning unit 25 (planning unit), and a maintenance instruction unit 26 (instruction unit). Further, the storage unit 11 stores a necessity DB (database) 30, key area data 31, and a maintenance plan DB 32.

[0025] The necessity acquisition unit 20 acquires the necessity of maintenance for the maintenance target MO using various data from the sensor 3, the inspection terminal 4, and the implementation request terminal 5. The necessity acquisition unit 20 stores the necessity of the maintenance in the necessity DB 30 of the storage unit 11 together with the position information of the maintenance target MO and the acquisition date and time of the necessity.

[0026] The necessity of the maintenance indicates the degree of necessity for maintenance. As an example, the necessity may be expressed in 100 levels. In this case, it may be set that 0 indicates that maintenance is not required and 100 indicates that maintenance is definitely required. The necessity of the maintenance includes the degree of dirt such as floors, toilets, stairs, handrails, etc., the degree of garbage accumulation in trash cans, the degree of decrease in toilet paper, the degree of decrease in liquid soap for handwashing, and the like.

[0027] For example, the degree of dirt may be acquired based on the inspection result data of the ATP wiping inspection in the maintenance target MO. Also, the degree of dirt may be acquired based on the comparison result between the current image and the past image captured by the camera which is the sensor 3. Further, the degree of dirt may be acquired based on the sensor data of the dust sensor installed in the work robot 6b that performs cleaning work. For example, the degree of garbage accumulation may be acquired based on the sensor data of the level sensor which is the sensor 3 installed in the trash can. Also, the degree of decrease in toilet paper may be acquired based on the sensor data of the level sensor which is the sensor 3 installed in the toilet paper. Further, the degree of decrease in liquid soap for handwashing may be acquired based on the sensor data of the level sensor which is the sensor 3 installed in the container of the liquid soap.

[0028] Note that the necessity acquisition unit 20 may further acquire pedestrian flow information indicating the flow of people at the location where the maintenance target MO is located. The pedestrian flow information may be information that can grasp the degree of congestion at the above location, such as, for example, the occupancy rate of toilets, the number of users, etc.

[0029] The statistical information acquisition unit 21 refers to the necessity DB 30 in the storage unit 11 and acquires statistical information for a predetermined period (for example, one month) regarding the necessity of maintenance for each maintenance target MO. The statistical information acquisition unit 21 sends the above statistical information to the determination unit 22.

[0030] Specifically, the above statistical information is at least any one of sensor data obtained from the sensor 3 that senses the state of the maintenance target MO, inspection result data obtained from the inspection terminal 4 by inspecting the degree of dirt of the maintenance target MO, the pedestrian flow at the location where the maintenance target MO is located, and the maintenance implementation request for the maintenance target MO obtained from the implementation request terminal 5.

[0031] The determination unit 22 determines, for each maintenance target MO, whether the necessity is higher than a predetermined threshold based on the statistical information from the statistical information acquisition unit 21. The determination unit 22 sends the determination result to the map creation unit 23 and the area setting unit 24.

[0032] The map creation unit 23 creates a heat map based on the determination result from the determination unit 22. The above heat map is one in which each of the maintenance target MOs is laid out on the map of the facility PL, and the maintenance target MOs determined by the determination unit 22 to have a necessity higher than the predetermined threshold are visualized. The map creation unit 23 transmits the created heat map to the terminal (not shown) of the administrator of the maintenance work via the communication unit 12. By referring to the above heat map, the administrator can easily grasp the locations where maintenance is required.

[0033] FIG. 3 is a diagram showing an example of the heat map. In the heat map HM shown in FIG. 3, the flow of people in locations where the congestion level (0 to 100) exceeds 80 detected by the people flow sensor is indicated by a broken line. Also, in the regular cleaning, the positions of the floors where the dirt level (0 to 100) of the floor detected by the dust sensor of the work robot 6b exceeds 90 are indicated by white circles. Further, in the maintenance target MO other than the floor, the maintenance target MO whose dirt level exceeds 90 in the regular ATP wiping inspection is indicated by a black circle.

[0034] In the present embodiment, as shown in FIG. 1, the facility PL is divided into a plurality of areas AR. The area of the area AR is, for example, 10 m 2 .

[0035] Based on the determination result from the determination unit 22, the area setting unit 24 sets, as a key area PA, an area AR in which there are a predetermined number or more of maintenance targets MO determined to have a necessity level higher than the predetermined threshold value. The area setting unit 24 stores the information of the set key area PA in the key area data 31 of the storage unit 11.

[0036] For example, in the statistical information for the predetermined period, if there are five or more maintenance targets MO with a dirt level of 90 or more in the area AR, the area setting unit 24 sets the area AR as the key area PA. Also, as an example, in the statistical information for the predetermined period, if there are five or more maintenance targets MO with a congestion level of 90 or more in the area AR, the area setting unit 24 sets the area AR as the key area PA. Also, as an example, in the statistical information for the predetermined period, if the implementation request from the implementation request terminal 5 is received three or more times for the maintenance target MO in the area AR, the area setting unit 24 sets the area AR as the key area PA.

[0037] FIG. 4 is a diagram visualizing the key area PA on the map of the facility PL.

[0038] The maintenance planning unit 25 creates a maintenance plan for each maintenance target MO with reference to the necessity degree DB 30 in the storage unit 11. Specifically, the maintenance planning unit 25 determines whether to assign the work to the worker 6a or the work robot 6b according to the type of maintenance necessity degree in the necessity degree DB 30. When assigning the work to the work robot 6b, it also determines which type of work robot 6b to use, etc. Then, based on the results of the above determinations, the maintenance plan is created. The maintenance planning unit 25 stores the created maintenance plan in the maintenance plan DB 32 of the storage unit 11. The maintenance instruction unit 26 refers to the maintenance plan DB 32 in the storage unit 11 and instructs the terminal of the worker 6a and the work robot 6b to perform maintenance work via the communication unit 12.

[0039] In this embodiment, the maintenance planning unit 25 refers to the key area data 31 in the storage unit 11 and creates a maintenance plan for at least one of the traveling route of the self-propelled work robot 6b that performs maintenance work and the content of the maintenance work performed by the work robot 6b so that the necessity degree of the maintenance target MO included in the key area PA decreases.

[0040] For example, the maintenance planning unit 25 may plan the above traveling route so that the work robot 6b travels through the key area PA multiple times. At this time, the maintenance instruction unit 26 refers to the people flow information from the necessity degree acquisition unit 20 and the key area data 31 in the storage unit 11, and instructs the work robot 6b to travel through the key area PA multiple times according to the above traveling route only during the time period (for example, late at night, early morning, etc.) when the degree of the people flow in the key area PA is below a predetermined reference value. Also, the maintenance instruction unit 26 may preset a time period (for example, the working hours during the day in the exclusive area, etc.) when the work by the work robot 6b is prohibited, and instruct the work robot 6b to travel through the key area PA multiple times according to the above traveling route during the time period other than the said working time period. In the above cases, the possibility of collision between the work robot 6b and people can be reduced.

[0041] In addition, the maintenance planning department 25 may plan the above implementation content so that the work robot 6b performs maintenance work in the key area PA more intensively (concentratedly) than the standard maintenance work. Specifically, the maintenance planning department 25 may plan the above implementation content so that the work robot 6b performs maintenance work in the key area PA with improved maintenance performance compared to the standard maintenance work.

[0042] Examples of the improvement of the above maintenance performance include the work robot 6b for cleaning work increasing the cleaning power compared to the standard maintenance work, or adding a scrubbing work to the standard vacuum work. At this time, when the degree of the above-mentioned flow of people in the key area PA is equal to or less than a predetermined reference value with reference to the flow of people information from the necessity acquisition unit 20 and the key area data 31 in the storage unit 11, the maintenance instruction unit 26 may instruct the work robot 6b to execute the maintenance work in the key area PA according to the planned above implementation content.

[0043] For example, when improving the maintenance performance of the work robot 6b compared to the standard maintenance work, the noise of the work robot 6b may increase. In this case, as the degree of the flow of people in the key area PA increases, the number of people who hear the above noise increases, and the number of people who feel uncomfortable due to the above noise increases. On the other hand, in the case of the above configuration, since the degree of the flow of people is equal to or less than a predetermined reference value, the number of people who hear the above noise is small, and the number of people who feel uncomfortable due to the above noise decreases.

[0044] In addition, the maintenance planning department 25 may plan the above travel route so that the work robot 6b with relatively high maintenance ability passes through the key area PA. An example of the work robot 6b with relatively high maintenance ability is a vacuum robot with relatively high suction ability.

[0045] According to the above configuration, the maintenance work is planned for at least one of the travel route of the self-propelled work robot 6b that performs the maintenance work and the content of the maintenance work performed by the work robot 6b so that the necessity of maintenance for the maintenance target MO included in the key area PA where there are a predetermined number or more of maintenance target MOs determined to have a necessity of maintenance higher than a predetermined threshold value is reduced. By performing the maintenance work by the work robot 6b according to this plan, the necessity of maintenance for the maintenance target MO included in the key area PA can be reduced. That is, the maintenance work for the key area PA can be appropriately performed using the work robot 6b.

[0046] (Maintenance work support process) FIG. 5 is a flowchart showing the flow of the maintenance work support process in the maintenance work support device 2 of the present embodiment. As shown in FIG. 5, first, the necessity acquisition unit 20 uses various data from the sensor 3, the inspection terminal 4, and the implementation request terminal 5 to collect the necessity of maintenance for the maintenance target MO, and stores the necessity of maintenance in the necessity DB 30 of the storage unit 11 together with the position information of the maintenance target MO and the acquisition date and time of the necessity (S10).

[0047] Next, the statistical information acquisition unit 21 refers to the necessity DB 30 of the storage unit 11 to acquire statistical information for a predetermined period regarding the necessity of maintenance for each maintenance target MO (S11, acquisition step). Next, the determination unit 22 determines whether or not the necessity is higher than a predetermined threshold value for each of the maintenance target MOs based on the statistical information from the statistical information acquisition unit 21 (S12, determination step). Next, the map creation unit 23 creates a heat map based on the determination result of the determination unit 22 (S13). Note that step S13 may be omitted.

[0048] Next, based on the determination result of the determination unit 22, the area setting unit 24 sets an area AR in which there are a predetermined number or more of maintenance target MOs determined to have a necessity level higher than the predetermined threshold value as a priority area PA, and stores it in the priority area data of the storage unit 11 (S14, setting step). Next, the maintenance planning unit 25 refers to the necessity level DB30 of the storage unit 11, creates a maintenance plan for each maintenance target MO, and further, so that the necessity level of the maintenance target MO included in the priority area PA decreases, at least one of the travel route of the self-propelled work robot 6b that performs the maintenance work and the content of the maintenance work performed by the work robot 6b is created (S15, planning step). Then, the maintenance instruction unit 26 refers to the maintenance plan and instructs the maintenance work to the terminal of the worker 6a and the work robot 6b (S16). Thereafter, the maintenance work support process is terminated.

[0049] 〔Embodiment 2〕 Another embodiment of the present invention will be described with reference to FIGS. 6 and 7.

[0050] The maintenance work support system 1 of Embodiment 1 will execute maintenance work intensively in the priority area PA. However, due to subsequent changes in the layout of the facility, changes in the environment, etc., there may be a case where it is no longer necessary to execute maintenance work intensively in the priority area PA. In this case, executing intensive maintenance work in the priority area PA is excessive work and wasteful.

[0051] Therefore, the maintenance work support system 1 of the present embodiment cancels the setting of the priority area PA for which it is no longer necessary to execute intensive maintenance work. Thereby, wasteful maintenance work can be prevented.

[0052] FIG. 6 is a block diagram showing a schematic configuration of a maintenance work support device 2 in the maintenance work support system 1 according to the present embodiment. The maintenance work support device 2 of the present embodiment is different in that a determination unit 40 and an area setting unit 41 (setting unit) are provided instead of the determination unit 22 and the area setting unit 24 shown in FIG. 2, and the other configurations are the same.

[0053] The determination unit 40 performs the same operation as the determination unit 22 shown in FIG. 2. Further, the determination unit 40 uses the statistical information from the statistical information acquisition unit 21 and the key area data 31 in the storage unit 11 to determine whether the necessity of each maintenance target MO included in the key area PA falls below a predetermined value over a predetermined period. The determination unit 40 sends this determination result to the area setting unit 41.

[0054] The area setting unit 41 performs the same operation as the area setting unit 24 shown in FIG. 2. Further, based on the determination result from the determination unit 40, when the necessity (such as dirtiness and congestion) of each maintenance target MO included in the key area PA falls below a predetermined value over a predetermined period, the area setting unit 41 cancels the setting as the key area PA and updates the key area data 31 in the storage unit 11. Thereby, waste in the maintenance work can be prevented.

[0055] FIG. 7 is a flowchart showing the flow of the setting cancellation process of the key area PA in the maintenance work support device 2 of the present embodiment. The above setting cancellation process is executed between step S11 and step S15 in the maintenance work support process shown in FIG. 5.

[0056] As shown in FIG. 7, first, the determination unit 40 determines whether or not the necessity of each maintenance target MO included in the key area PA is less than a predetermined value over a predetermined period by using the statistical information and the key area data (S20). Next, based on the determination result, when the necessity of each maintenance target MO included in the key area PA is less than the predetermined value over the predetermined period, the area setting unit 41 releases the setting as the key area PA and updates the key area data 31 in the storage unit 11 (S21). After that, the above setting release process ends.

[0057] (Supplementary Note) A part of the process executed by the maintenance work support device 2 may be executed by another information processing device (computer). That is, the execution subject of each process described in the above embodiments can be changed as appropriate, and the maintenance work support system 1 according to the present invention can be realized with various system configurations. For example, each process shown in FIGS. 5 and 7 may be executed in a form shared by a plurality of information processing devices (computers).

[0058] [Example of Realization by Software] The function of the maintenance work support device 2 (hereinafter referred to as the "device") is a program for causing a computer to function as the device, and can be realized by a program for causing a computer to function as each control block of the device (particularly each part included in the control unit 10).

[0059] In this case, the device includes a computer having at least one control device (for example, a processor) and at least one storage device (for example, a memory) as hardware for executing the program. By executing the program by this control device and storage device, each function described in the above embodiments is realized.

[0060] The above program may be recorded on one or more computer-readable recording media, rather than temporarily. This recording medium may or may not be provided in the above device. In the latter case, the above program may be supplied to the above device via any wired or wireless transmission medium.

[0061] In addition, part or all of the functions of each of the above control blocks can also be realized by a logic circuit. For example, an integrated circuit in which a logic circuit functioning as each of the above control blocks is formed is also included in the scope of the present invention. In addition to this, for example, it is also possible to realize the functions of each of the above control blocks by a quantum computer.

[0062] Also, each process described in each of the above embodiments may be executed by AI (Artificial Intelligence). In this case, AI may operate in the above control device, or may operate in another device (for example, an edge computer or a cloud server, etc.).

[0063] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention.

Explanation of Reference Numerals

[0064] 1 Maintenance Business Support System 2 Maintenance Business Support Device 3 Sensor 4 Inspection Terminal 5 Implementation Requirement Terminal 6 Work Staff 6a Worker 6b Work Robot 10 Control Unit 11 Storage Unit 12 Communication Unit 20 Necessity Acquisition Unit (Acquisition Unit) 21 Statistical Information Acquisition Unit (Acquisition Unit) 22. 40 determination unit 23 Map creation unit (creation unit) 24. 41 Area setting unit (setting unit) 25 Maintenance planning unit (planning unit) 26 Maintenance instruction unit (instruction unit) 30 Necessity DB 31 Key area data 32 Maintenance plan DB

Claims

1. An acquisition unit that acquires statistical information regarding the necessity of maintenance for maintenance targets; A determination unit that determines, for each of the maintenance targets, whether or not the necessity is higher than a predetermined threshold value based on the statistical information; A setting unit that sets, as a priority area, an area where there are a predetermined number or more of the maintenance targets for which the necessity has been determined to be higher than the predetermined threshold value; A planning unit that plans at least one of a travel route of a self-propelled work robot that performs maintenance work and the content of the maintenance work performed by the work robot so that the necessity of the maintenance targets included in the priority area decreases; A maintenance work support device.

2. The planning unit plans the travel route so that the work robot travels through the priority area; The acquisition unit further acquires flow information indicating the flow of people at the location where the maintenance target is located; The maintenance work support device according to claim 1, further comprising an instruction unit that instructs the work robot to travel through the priority area according to the travel route only during a time period when the degree of the flow of people in the priority area is equal to or less than a predetermined reference value. The maintenance work support device according to claim 1.

3. The planning unit plans the travel route so that the work robot travels through the priority area a plurality of times. The maintenance work support device according to claim 1.

4. The planning unit plans the travel route so that the work robot with relatively high maintenance ability passes through the priority area. The maintenance work support device according to claim 1.

5. The planning unit plans the implementation content so that the work robot performs the maintenance work in the priority area with improved maintenance performance compared to standard maintenance work. The maintenance work support device according to claim 1.

6. The acquisition unit further acquires flow information indicating the flow of people at the location where the maintenance target is located; The maintenance work support device according to claim 5, further comprising an instruction unit that instructs the work robot to execute the maintenance work in the priority area according to the planned implementation content when the degree of the flow of people in the priority area is equal to or less than a predetermined reference value. The maintenance work support device according to claim 5.

7. Each of the maintenance targets is laid out, and A creation unit that creates a heat map in which the maintenance target determined to have a necessity level higher than the predetermined threshold based on the statistical information is visualized is further provided. The maintenance work support device according to claim 1.

8. When the necessity level of each of the maintenance targets included in the key area falls below a predetermined value over a predetermined period, the setting unit cancels the setting as the key area. The maintenance work support device according to claim 1.

9. The statistical information is sensor data obtained from a sensor that senses the state of the maintenance target, inspection result data obtained by inspecting the degree of dirt of the maintenance target, the flow of people at the location where the maintenance target is located, and statistical information of at least any one of the maintenance implementation requests for the maintenance target. The maintenance work support device according to claim 1.

10. The state of the maintenance target is sensed by the sensor provided in the work robot. The maintenance work support device according to claim 9.

11. The state of the maintenance target is sensed by the sensor installed in the vicinity of the maintenance target. The maintenance work support device according to claim 9.

12. The implementation request is transmitted from an information terminal that has received an operation requesting maintenance for the maintenance target. The maintenance work support device according to claim 9.

13. The inspection is an ATP (adenosine triphosphate) wiping inspection. The maintenance work support device according to claim 9.

14. The sensor is a camera, and the sensor data is an image obtained by photographing the state of the maintenance target with the camera. The maintenance work support device according to claim 9.

15. A maintenance work support program for causing a computer to function as the maintenance work support device according to claim 1, the maintenance work support program for causing a computer to function as the acquisition unit, the determination unit, the setting unit, and the planning unit.

16. A maintenance work support method in a maintenance work support device executed by one or more computers, an acquisition step of acquiring statistical information regarding the necessity level of maintenance for a maintenance target, For each of the maintenance targets, a determination step of determining whether or not the necessity level is higher than a predetermined threshold based on the statistical information; A setting step of setting, as a key area, an area where there are a predetermined number or more of the maintenance targets for which it is determined that the necessity level is higher than the predetermined threshold; A planning step of planning at least one of a travel route of a self-propelled work robot that performs maintenance work and the content of the maintenance work performed by the work robot so that the necessity level of the maintenance targets included in the key area decreases. A maintenance work support method.

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