Work management system, work management device, and work management method

Abstract

To provide a technique capable of ensuring, by identifying a timing of starting or repeating a proper floor finishing work in each part of a concrete floor, a trowell work and appropriate construction quality in accordance with the timing.SOLUTION: A work management system 10 for managing a floor surface finishing work in construction of a concrete floor comprises: a travel device that executes a floor surface rubbing operation and travels on a floor surface; a position measuring instrument that measures the position of the travel device; a temperature measuring instrument that measures the temperature of each part of the floor surface; and an arithmetic device that calculates, on the basis of each measuring result of the position measuring instrument and the temperature measuring instrument before and after the rubbing operation, a temperature difference before and after the rubbing operation for each part of the floor surface to determine a specific part in which the temperature difference becomes equal to or larger than a reference value.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a work management system, a work management device, and a work management method, and in particular to a technology that identifies the appropriate timing for starting or repeating floor finishing work in each part of a concrete floor, and enables management of work using trowels according to that timing and ensuring appropriate construction quality. [Background technology]

[0002] Regarding concrete floors in logistics warehouses, factories, etc., there are increasing demands for quality aspects such as ensuring level accuracy and preventing cracks in addition to aesthetics. Meanwhile, the number of skilled workers engaged in such construction work continues to decrease year by year. Therefore, unless measures are provided to compensate for the skills of skilled workers and enable construction management, it may become difficult to achieve appropriate construction quality at each site in the near future.

[0003] Therefore, a technology has been proposed that determines whether or not finishing of a concrete floor can be started or repeated during construction of the concrete floor, thereby achieving a predetermined construction quality. One such technology is a concrete floor finishing technology that uses a horse-riding trowel. Patent Document 1 proposes a technology (see Patent Document 1) relating to a concrete floor construction method that does not cause surface peeling after construction using a horse-riding trowel.

[0004] Specifically, this technology relates to a construction method for finishing concrete floors using a riding-type trowel, characterized by measuring the temperature distribution on the floor surface and performing finishing work while avoiding the riding-type trowel entering areas with high temperatures. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-197987 Summary of the Invention [Problem to be solved by the invention]

[0006] The Trowell has multiple blades equivalent to trowels for its finishing operation. These blades are brought into contact with the concrete floor surface (which has been roughly leveled after pouring) and rotated to continuously scrape up the wet concrete floor surface after pouring. By repeating this scraping action, the concrete floor surface is smoothed with high precision, effectively achieving a mirror finish.

[0007] As mentioned above, the use of a Trowell blade can certainly lead to improved construction quality. However, there are also risks associated with using a Trowell blade for construction. For example, if the blade scrapes away a portion of a concrete floor that has hardened beyond a certain level, trowel burns (uneven color) can occur on the surface of the concrete floor. Further scraping can cause the concrete floor to peel. Both trowel burns and peeling can lead to a decrease in the aesthetics and quality of the concrete floor.

[0008] Therefore, as in the prior art, it is possible to consider the surface temperature of the concrete floor as an indication of the progress of the hydration reaction, in other words, the degree of concrete hardening, and to control the operation of the trowell based on this. However, it cannot be said that the surface temperature of the concrete floor always accurately reflects the degree of hardening of the concrete floor.

[0009] For example, if the floor thickness (volume of concrete) differs in each part of the concrete floor, the heat of hydration per unit area in that part will differ, and the surface temperature of the concrete floor will also differ between parts. In other words, not only the degree of hardening but also the floor thickness can be a factor influencing the surface temperature. Therefore, if the operation of the trowel is controlled based on the surface temperature, it is impossible to eliminate the risk of scraping parts of the concrete floor that have hardened earlier or parts that could be damaged by the placement or movement of the trowel itself.

[0010] Therefore, the present invention has been made in consideration of the above problems, and its purpose is to provide a technology that can identify the appropriate timing for starting or repeating floor finishing work in each part of a concrete floor, and can manage work using trowels according to that timing and ensure appropriate construction quality. [Means for solving the problem]

[0011] The above problem is solved by the work management system of the present invention, which is a work management system that manages floor finishing work in the construction of concrete floors, and is configured to include a traveling device that has a rubbing section that performs a rubbing operation on the floor surface and travels on the floor surface, a position measuring device that measures the position of the traveling device, a temperature measuring device that measures the temperature of each part of the floor surface, and a computing device that calculates the position of each part of the floor surface and the temperature difference at each part before and after the rubbing operation based on the measurement results of the position measuring device and the measurement results of the temperature measuring device before and after the rubbing operation, and determines specific parts of the floor surface where the temperature difference is equal to or greater than a reference value.

[0012] The work management system of the present invention, configured as described above, can identify the temperature difference (i.e., the degree of temperature rise) before and after scrubbing on the floor surface, and based on this, can determine the degree of hardening progress of the relevant portion. The degree of hardening progress of the concrete floor surface can be used to determine the level of finishing work to be performed. The correspondence between the degree of hardening progress and the finishing work can be envisioned, for example, as follows: if the hardening progress is already significant, finishing work can be avoided to avoid surface peeling; or, if the hardening progress is such that finishing work can be performed but to a certain extent, the number of finishing work operations can be reduced to a certain degree compared to normal. Therefore, by applying finishing work control instructions to the trowell based on the degree of hardening progress, the work management system of the present invention can manage the appropriate content of finishing work at the appropriate timing for starting or repeating floor finishing work for each portion of the concrete floor.

[0013] Furthermore, in the above-mentioned work management system, it is preferable that the calculation device determines the degree of finishing work to be performed on the floor surface of the determined specific part depending on the degree of difference between the temperature difference and the reference value.

[0014] With the above configuration, it is possible to determine with appropriate precision the level of finishing work appropriate to the degree of hardening of the floor surface, such as avoiding finishing work to prevent surface peeling, or reducing the number of finishing work operations (more specifically, the number of trowel movements (back and forth)) to a certain degree compared to normal times. It is also possible to efficiently control the trowel appropriately according to the level of such finishing work.

[0015] In the above work management system, it is preferable that the traveling device is a moving body that is equipped with the position measuring device and the temperature measuring device.

[0016] According to the above configuration, the traveling device can be configured as a small robot that can travel on the floor surface, and can automatically scan the entire surface of a concrete floor continuously and thoroughly for position and temperature. By adopting such a configuration, the small robot can continuously measure the temperature at each position, even at a site where a large concrete floor is being constructed. The position and temperature values ​​of each part of the floor surface measured by such a small robot are transmitted to a computing device via an appropriate network and used to determine the degree of hardening progress at each part of the floor surface.

[0017] Furthermore, it is preferable that the above-mentioned work management system includes a control device for a finishing device that performs finishing work on the floor surface of the concrete floor, which acquires from the arithmetic device information on the position of the specific part and the degree of finishing work on the floor surface determined for the specific part, and gives instructions to the finishing device regarding the content of the finishing work on the specific part depending on the degree of the finishing work.

[0018] According to the above configuration, it is possible to control an actual finishing device such as a mounted trowel in relation to the area (specific portion) and degree of finishing work specified by the calculation device.

[0019] In the above work management system, it is preferable that the traveling device is smaller or lighter than the finishing device, and one or more traveling devices are provided for each finishing device.

[0020] The above configuration makes it easier to efficiently measure the temperature of each part of the floor surface with a small turnaround while minimizing damage to the floor surface while it is still fresh. In particular, at sites where large concrete floors are being finished, if multiple traveling devices are distributed to scan the floor surface, a significant improvement in work efficiency can be expected.

[0021] Furthermore, in the above-mentioned work management system, it is preferable that the calculation device visualizes and displays on a screen the specific parts of the floor surface where the temperature difference is greater than or equal to the reference value.

[0022] According to the above configuration, when manually operating a finishing device such as a mounted trowel, or manually setting the control details for the finishing device, the person operating or setting the device can visually recognize which parts of the concrete floor surface are to be finished and which are not, making it easier to accurately perform the operating or setting operations.In the following explanation, the manager of the concrete floor construction site, the person who sets the control details for the finishing device, the operator who rides on a mounting trowel or other finishing device and actually operates it, and the observer who observes the progress of hardening of the concrete floor will be collectively referred to as the "person in charge," and will be explained individually as necessary.

[0023]

[0013] The above-mentioned configuration allows the appropriate timing for starting or repeating floor finishing work for each part of a concrete floor to be identified, and the work using the trowel according to that timing and the assurance of appropriate construction quality can be managed. Furthermore, the above-mentioned problem can be solved by the work management device of the present invention, which is a management device for managing floor finishing work in the construction of a concrete floor, and includes a traveling device having a scrubbing unit that performs a scrubbing operation on the floor surface and traveling on the floor surface, a position measuring device that measures the position of the traveling device, a temperature measuring device that measures the temperature of each part of the floor surface, a communication device for communication, and a calculation device that acquires the measurement results of the position measuring device and the measurement results of the temperature measuring device before and after the scrubbing operation via the communication device, calculates the position of each part of the floor surface and the temperature difference at each part before and after the scrubbing operation based on the acquired measurement results, and identifies specific parts of the floor surface where the temperature difference is equal to or greater than a reference value.

[0024] The above-mentioned work management device makes it possible to identify the appropriate timing for starting or repeating floor finishing work for each part of the concrete floor, and to manage work using trowels according to that timing and ensure appropriate construction quality.

[0025] Furthermore, the above-mentioned problem can be solved by the work management method of the present invention, in which a work management device for managing floor surface finishing work in the construction of a concrete floor has a rubbing unit that performs a rubbing operation on the floor surface, and communicates with a traveling device that travels on the floor surface, a position measuring device that measures the position of the traveling device, and a temperature measuring device that measures the temperature of each part of the floor surface, and acquires the measurement results of the position measuring device and the measurement results of the temperature measuring device before and after the rubbing operation, respectively; This problem is solved by executing a step of calculating the position of each part of the floor surface and the temperature difference at each part before and after the rubbing action based on the obtained measurement results, and determining specific parts of the floor surface where the temperature difference is greater than or equal to a reference value.

[0026] According to the above work management method, it is possible to identify the appropriate timing for starting or repeating floor finishing work for each part of the concrete floor, and manage work using trowels according to that timing and ensure appropriate construction quality. [Effects of the Invention]

[0027] The work management system, work management device, and work management method of the present invention make it possible to identify the appropriate timing for starting or repeating floor finishing work in each part of a concrete floor, and to manage work using trowels according to that timing and ensure appropriate construction quality. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 1 is a diagram showing an example of a concrete floor finishing work site in this embodiment. [Figure 2] 1 is a diagram illustrating an example of the configuration of a small robot (traveling device) according to an embodiment of the present invention. [Figure 3] FIG. 2 is a diagram illustrating a configuration example of a trowell (finishing device) in the present embodiment. [Figure 4] FIG. 1 is a diagram illustrating an example of a network configuration according to an embodiment of the present invention. [Figure 5] FIG. 2 is a diagram illustrating an example of a hardware configuration of the work management apparatus according to the present embodiment. [Figure 6] FIG. 2 is a diagram illustrating an example of a hardware configuration of a control device according to the present embodiment. [Figure 7] FIG. 2 is a diagram illustrating an example of the configuration of a measurement value DB according to the present embodiment. [Figure 8] FIG. 4 is a diagram illustrating an example of the configuration of a reference table according to the present embodiment. [Figure 9] FIG. 2 is a diagram illustrating an example of the configuration of a device management DB according to the present embodiment. [Figure 10] FIG. 2 is a diagram illustrating an example of the configuration of a control information DB according to the present embodiment. [Figure 11] FIG. 2 is a diagram showing a flow (part 1) of a work management method in this embodiment. [Figure 12]FIG. 10 is a diagram showing a flow (part 2) of the work management method in this embodiment. [Figure 13] FIG. 10 is a diagram showing a flow (part 3) of the work management method in this embodiment. [Figure 14] FIG. 10 is a diagram showing an example of a screen output in this embodiment. [Figure 15] FIG. 10 is a diagram showing an example of a screen output in this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0029] <<About a Work Management System According to an Embodiment of the Present Invention>> The devices constituting the work management system of the present invention, the methods executed therein, and the programs therefor will be described below with reference to the accompanying drawings, taking one embodiment of the present invention (hereinafter, the present embodiment) as an example. However, the embodiment described below is merely an example given to facilitate understanding of the present invention and does not limit the present invention. In other words, the present invention may be modified or improved from the embodiment described below without departing from the spirit of the present invention. Naturally, the present invention also includes equivalents thereof.

[0030] Furthermore, the screen examples shown in the drawings referenced in the following description are merely examples, and the screen configuration examples, the content of the information displayed, and the GUI (Graphical User Interface), etc., can be freely designed according to the system design specifications and user preferences, and can be changed as appropriate.

[0031] In addition, in this specification, the term "device" includes not only one device that performs a predetermined function on its own, but also multiple devices that are separate from each other but work together to perform a predetermined function.

[0032] <Concrete floor finishing construction site> First, the concept of a construction site for finishing work on the floor surface 2 of a concrete floor 1 to which the work management method of this embodiment is applied is shown. FIG. 1 is a diagram showing an example of a finishing work site for a concrete floor 1 in this embodiment. Note that FIG. 1 shows an image of the concrete floor 1 as viewed from above. As a premise, the concrete floor 1 is assumed to have hardened from a completely fresh state immediately after concrete is poured to a state where at least a small robot 20 can run over it. Furthermore, the floor surface 2 of the concrete floor 1 has been roughly leveled and has a smoothness that does not impede the small robot 20 from running over it.

[0033] Under the above-mentioned conditions, as shown in the figure, multiple small robots 20 travel along their own set travel routes 5 on the floor surface 2 of the concrete floor 1. The small robots 20 are traveling devices that have the functions of position measurement and temperature measurement, which will be described in detail later, and that continuously measure their own position and the temperature of the floor surface at regular intervals while traveling on the floor surface 2. The small robots 20 upload the position and temperature measurement results to the work management device 30 via an appropriate network.

[0034] Each of the small robots 20 has preset information for controlling its operation, such as information on the coordinate system applied to the floor surface 2, information on its own travel path 5 in that coordinate system, information on its travel speed on that travel path 5, and information for various measurement operations (for example, information on measurement intervals, sensitivity, etc.). Such information for controlling operation can be assumed to be set, for example, by the work management device 30 that generated the information, or directly by a person in charge.

[0035] 2 shows an example of the configuration of the small robot 20. The small robot 20 in this embodiment includes, for example, a blade mechanism 21 (scrubbing unit), a traveling mechanism 22, a position measuring device 23, a temperature measuring device 24, a control unit 25, and a communication device 26. Of these, the blade mechanism 21 is a mechanism in which multiple metal or resin blades are driven to rotate around a rotation axis. The blades in this blade mechanism 21 are driven to rotate while being appropriately abutted against the floor surface 2, and are responsible for scrubbing the floor surface 2 with their end faces.

[0036] This scraping action generates frictional heat between the blade and the floor surface 2. As a result, the temperature of the floor surface 2 rises. At this time, the harder the floor surface 2, the greater the friction with the blade that rotates while in contact with it, and the greater the degree of the temperature rise. The temperature rise of the floor surface 2 that accompanies this scraping action is less affected by the surface temperature of the floor surface 2 before the scraping action, and is mainly dependent on the degree of hardening of the floor surface 2. Since this small robot 20 is lighter than the Trowell 40, it can reduce the risk of excessively scraping the floor surface 2 when moving. Furthermore, because the small robot 20 is lightweight as described above, it can move without sinking even on fresh concrete.

[0037] The running mechanism 22 is a mechanism that causes the small robot 20 to run on the floor surface 2, and can be, for example, a running mechanism such as rubber wheels and their drive unit, or a mechanism that moves while sliding on the surface of the floor surface 2 by the rotational movement of the blade mechanism 21 itself. The running mechanism 22 is controlled by the control unit 25 based on information on its own position obtained by the position measuring device 23, etc.

[0038] The position measuring device 23 can be, for example, a prism linked to a total station, or a GPS (Global Positioning System) unit. The total station used here is a so-called layout navigator with a 360-degree prism automatic tracking function. This layout navigator is installed near the concrete floor 1 within a distance range that allows it to track the prism and communicate with the communication device 26. The layout navigator returns the coordinate values ​​of the current position of the small robot 20 in the coordinate system of the concrete floor 1 to the control unit 25 of the small robot 20 (it may also return these coordinates to the work management device 30).

[0039] The temperature measuring device 24 is disposed, for example, around the blade mechanism 21 and measures the surface temperature of the floor surface 2. The temperature measuring device 24 is communicatively connected to the control unit 25 via appropriate wiring or the like and notifies the control unit 25 of measurement results at regular intervals. The control unit 25 is a computer chip that controls the operation of the traveling mechanism 22, position measuring device 23, and temperature measuring device 24 on the floor surface 2 while exchanging data with the work management device 30 via a communication device 26. Based on the position information obtained by the position measuring device 23 and the above-mentioned preset operation control information, the control unit 25 travels over the floor surface 2 and transmits the measurement results and status (operating / non-operating and operation history) of the position measuring device 23 and the temperature measuring device 24 to the work management device 30 via the communication device 26. The communication device 26 is a communication chip that performs wireless communication with the work management device 30 via a line such as a wireless LAN (Local Area Network) or a mobile phone network.

[0040] Meanwhile, the work management device 30 determines the degree of hardening in each part of the floor surface 2 based on information (position and temperature measurement results) continuously uploaded from the small robot 20, and transmits finishing work information corresponding to this degree of hardening to the control device 100 of the trowell 40. In the figure, an example is shown in which the work management device 30 is placed near the concrete floor 1, but there are no restrictions on the location as long as it is able to communicate with the small robot 20 and the control device 100 of the trowell 40. Also, either the trowell 40 or the small robot 20 may have the configuration and functions of the work management device 30. The concept of generating the finishing work information in the work management device 30 will be described later.

[0041] Meanwhile, the control device 100 receives the finishing work information from the work management device 30 and sets it in the control unit of the trowel 40 under its control, or directly executes control on the trowel 40 in accordance with the information. The control unit 44 of the trowel 40 is a computer chip that controls the drive devices for the movement and finishing operations of the trowel 40. The finishing work information includes at least information for the finishing operation, such as coordinate system information on the floor surface 2 (shared with the small robot 20), information on its own travel path 5 in that coordinate system, information on its travel speed on the travel path 5, and information on the rotational speed of the upper finishing blade mechanism 41 (described below).

[0042] On the other hand, the trowel 40 travels on the floor surface 2 and automatically performs finishing operations using the upper finishing blade mechanism 41 in accordance with the finishing operation information set by the control device 100 or control information instructed by the control device 100 based on the finishing operation information. Whether or not such finishing operations can be performed and the extent of such operations correspond to the content determined by the work management device 30 in accordance with the progress of hardening of the floor surface 2.

[0043] 3 shows an example of the configuration of the trowell 40. The trowell 40 in this embodiment includes, for example, a finishing blade mechanism 41, a traveling mechanism 42, a position measuring device 43, a control unit 44, a communication device 45, a driver's seat 46, and an operating lever 47. Of these, the finishing blade mechanism 41 is a mechanism in which multiple metal or resin blades are rotated around a rotation axis, similar to that of the small robot 20. The blades in this finishing blade mechanism 41 are rotated while being appropriately abutted against the floor surface 2, and perform a finishing operation of scraping up the floor surface 2 with their end faces.

[0044] The traveling mechanism 42 is a mechanism for moving the trowel 40 on the floor surface 2, and may be, for example, a traveling mechanism such as rubber wheels and their drive unit, or a mechanism that moves while sliding on the surface of the floor surface 2 by the rotational motion of the finishing blade mechanism 41 itself. The traveling mechanism 42 is controlled by a control unit 44 based on information on its own position obtained by a position measuring device 43, etc.

[0045] The position measuring device 43 can be a prism linked to a total station, or a GPS (Global Positioning System) unit, similar to that of the small robot 20. The total station used here is a so-called layout navigator with a 360-degree prism automatic tracking function. This layout navigator is installed near the concrete floor 1 within a distance range that allows it to track the prism and communicate with the communication device 26. The layout navigator returns the coordinate values ​​of the current position of the trowel 40 in the coordinate system of the concrete floor 1 to the control unit 44 of the trowel 40 (it may also return these coordinates to the work management device 30).

[0046] The control unit 44 is a computer chip that controls the operations of the finishing blade mechanism 41, traveling mechanism 42, and position measuring device 43 on the floor surface 2 while exchanging data with the work management device 30 via the communication device 45. Based on the position information obtained by the position measuring device 43 and the above-mentioned preset information for operation control, the control unit 25 performs finishing operations with the finishing blade mechanism 41 while traveling on the floor surface 2, and transmits the history (operation history) of this operation to the work management device 30 via the communication device 45. The communication device 26 is a communication chip that performs wireless communication with the work management device 30 via a line such as a wireless LAN (Local Area Network) or a mobile phone network.

[0047] The cockpit 46 and the operating lever 47 are components that are provided when the trowel 40 is a rider-type trowel. Therefore, when implementing the work management method of this embodiment, these components are required when an operation is adopted in which finishing operation information is only transmitted to the operator who rides on and actually operates the rider-type trowel, and the operation of the rider-type trowel is controlled but automatic finishing operations are not performed. In other words, when an operation in which the trowel 40 is automatically controlled is adopted, the cockpit 46 and the operating lever 47 are not essential components. The cockpit 46 is a seat where the operator of the rider-type trowel sits. Furthermore, the operating lever 47 is a lever with which the operator operates the direction of movement of the rider-type trowel.

[0048] <Network configuration> Next, an example of a network configuration that constitutes the work management system 10 in this embodiment will be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of a network configuration in this embodiment. The small robot 20, trowell 40, work management device 30, and control device 100, which have already been described, are communicatively connected via network N to constitute the work management system 10. However, this network configuration is merely one example, and it is possible to employ any of the following configurations: the work management device 30 and either the small robot 20 or the Trowell 40 cooperate to set control information for the Trowell 40 in the control device 100 (which may be provided in the Trowell 40), or to present the control information to the operator of the Trowell 40. Furthermore, the small robot 20 and the Trowell 40 have already been described, so a description thereof will be omitted here.

[0049] In the above network configuration, the work management device 30 is a computer device that automatically controls the operation of the trowel 40 while appropriately exchanging data with the trowel 40 and the small robot 20 operating on the concrete floor 1. For this reason, it has the functional units of a judgment unit 321 and a screen generation unit 322.

[0050] Of these, the determination unit 321 calculates the position of each part of the floor surface 2 and the temperature difference at each part before and after the scrubbing action based on the measurement results of the position measuring device 23 of the small robot 20 and the measurement results of the temperature measuring device 24 before and after the scrubbing action of the blade mechanism 21. Furthermore, based on the temperature difference calculated here, the determination unit 321 determines specific parts of the floor surface 2 where the temperature difference is equal to or greater than a reference value, based on the measurement results stored in the measurement value DB 311 (Fig. 5) and the reference table 312 (Fig. 5). Details of this determination will be described later.

[0051] Furthermore, for specific portions of the floor surface 2 where the temperature difference is equal to or greater than the reference value, the screen generation unit 322 maps the position coordinates on the screen in the coordinate system of the concrete floor 1, and visualizes and displays the position by placing an appropriate object at the target position on the screen. In this case, the object can be, for example, a colored area that constitutes the heat map 1002 on the screen. To perform this processing, the screen generation unit 322 is provided with a known heat map generation engine, or can be accessed and used via the network N. The heat map generation method itself can be any known method that is appropriate.

[0052] On the other hand, the control device 100 is a device that acquires information for controlling the operation of the trowel 40 from the work management device 30 and controls the trowel 40 based on this information. For this purpose, the control device 100 has a control execution unit 1021. This control execution unit 1021 sets control values ​​based on the information for performing the above-mentioned operation control for the control unit 44 of the trowel 40, causing it to move to a specific part on the floor surface 2 of the concrete floor 1 and drive the finishing blade mechanism 41 along the specific part or the movement path to the specific part. Specifically, the above settings assume the setting of control values ​​for the movement direction and movement speed for the traveling mechanism 42, and the setting of the blade rotation speed (which may also include the concept of stopping) for the finishing blade mechanism 41.

[0053] <Hardware configuration of the work management device> Next, the configuration of the work management device 30, which is the main component of the work management system 10, will be described. Fig. 5 is a diagram showing an example of the hardware configuration of the work management device 30 in this embodiment. Note that the work management device 30 in this embodiment may be configured with a single computer as shown in the figure, or may be configured with multiple computers distributed in parallel. Alternatively, the work management device 30 may be configured with a computer for an ASP (Application Service Provider), SaaS (Software as a Service), PaaS (Platform as a Service), or IaaS (Infrastructure as a Service).

[0054] Here, assuming that the work management device 30 in this embodiment is composed of a single computer, Figure 5 shows a configuration of the work management device 30 in which an auxiliary memory device 31, a main memory device 33, an arithmetic device 34, an output device 35, and a communication device 36 are connected by a bus.

[0055] In the above configuration, the auxiliary storage device 31 is implemented by a non-volatile storage device or storage medium such as an HDD (Hard Disk Drive), SSD (Solid State Drive), flash memory, FD (Flexible Disc), MO disk (Magneto-Optical disc), CD (Compact Disc), DVD (Digital Versatile Disc), SD card (Secure Digital card), or USB memory (Universal Serial Bus memory).

[0056] The auxiliary storage device 31 may be built into the housing of the work management device 30, or may be externally connected to the work management device 30. The auxiliary storage device 31 may also be formed by another computer or the like communicably connected to the work management device 30. Note that a distributed ledger technology such as a blockchain may be used as a technology for recording various data in order to avoid unauthorized data tampering. Note that the auxiliary storage device 31 in this embodiment stores a measurement value DB 311 and a reference table 312, which will be described in detail later.

[0057] The main storage device 33 may be configured with volatile semiconductor memory such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The main storage device 33 in this embodiment stores a program 32 including an OS (Operating System) read from the auxiliary storage device 31, and a heat map generation engine (not shown) that is implemented as needed.

[0058] Of these, the OS controls the work management device 30 itself and implements basic functions, and under its control, the calculation device 34 calls and executes each part of the program 32, thereby implementing each function corresponding to the work management method, namely, the judgment unit 321 and the screen generation unit 322.

[0059] Furthermore, the arithmetic device 34 may be configured by a CPU (Central Processing Unit), an MPU (Micro-Processing Unit), an MCU (Micro Controller Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), a TPU (Tensor Processing Unit), or an ASIC (Application Specific Integrated Circuit), etc.

[0060] The output device 35 is primarily assumed to be a display or a touch panel, but may also include other appropriate output devices such as speakers. Although not essential, the output device 35 may also include input operation devices such as a keyword, mouse, or microphone.

[0061] The communication device 36 is assumed to be a communication chipset compatible with, for example, 3G to 5G or later generation mobile communication protocols or the LTE (Long Term Evolution) protocol, but may be implemented in other devices depending on the type of network N. For example, if the network N is configured as a wireless LAN, the communication device 36 will be implemented in a network interface card compatible with the wireless LAN protocol based on Wi-fi (registered trademark). <Control device hardware configuration> Next, the configuration of the control device 100 that controls the trough 40 will be described. Fig. 6 is a diagram showing an example of the hardware configuration of the control device 100 in this embodiment. Note that the control device 100 in this embodiment may be configured with a single computer as shown in the figure, or may be configured with multiple computers distributed in parallel. Alternatively, the work management device 30 may be configured with a computer for ASP (Application Service Provider), SaaS (Software as a Service), PaaS (Platform as a Service), or IaaS (Infrastructure as a Service).

[0062] Here, assuming that the control device 100 in this embodiment is composed of a single computer, Figure 6 shows a configuration in which the control device 100 is composed of an auxiliary memory device 101, a main memory device 103, an arithmetic device 104, and a communication device 105 connected by a bus.

[0063] In the above configuration, the auxiliary storage device 101 is implemented by a non-volatile storage device or storage medium, such as an HDD (Hard Disk Drive), SSD (Solid State Drive), flash memory, FD (Flexible Disc), MO disk (Magneto-Optical disc), CD (Compact Disc), DVD (Digital Versatile Disc), SD card (Secure Digital card), or USB memory (Universal Serial Bus memory).

[0064] The auxiliary storage device 101 may be built into the housing of the control device 100 or Trowell 40, or may be externally connected to the control device 100 or Trowell 40. Furthermore, the auxiliary storage device 101 may be formed by another computer or the like communicably connected to the control device 100. Note that a distributed ledger technology such as a blockchain may be used as a technology for recording various data in order to avoid unauthorized data tampering.

[0065] The auxiliary storage device 101 in this embodiment stores a device management DB 1011 and a control information DB 1012, which will be described in detail later. The main storage device 103 may be configured with volatile semiconductor memory such as a read-only memory (ROM) and a random access memory (RAM). The main storage device 103 in this embodiment holds a program 102 including an operating system (OS) read from the auxiliary storage device 101.

[0066] Of these, the OS implements the control and basic functions of the control device itself, and under its control, the arithmetic device 104 calls and executes each part of the program 102, thereby implementing each function corresponding to the work management method, i.e., the control execution unit 1021.

[0067] Furthermore, the arithmetic device 104 may be configured by a CPU (Central Processing Unit), an MPU (Micro-Processing Unit), an MCU (Micro Controller Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), a TPU (Tensor Processing Unit), or an ASIC (Application Specific Integrated Circuit), etc.

[0068] Furthermore, the communication device 105 is assumed to be a communication chipset compatible with, for example, 3G to 5G or later generation mobile communication protocols or the LTE (Long Term Evolution) protocol, but may be implemented in other devices depending on the type of network N. For example, if the network N is configured as a wireless LAN, the communication device 105 will be implemented in a network interface card compatible with the wireless LAN protocol based on Wi-fi (registered trademark).

[0069] <Configuration of measurement value DB> Next, the databases held by the work management device 30 in this embodiment will be described. Fig. 7 is a diagram showing an example of the configuration of the measurement value DB 311 in this embodiment. The measurement value DB 311 in this embodiment is a database that stores the measurement results of the position and temperature measured by the small robot 20, and the associated judgment results of the degree of progress of hardening and the degree of finishing. The data configuration is a collection of records that include values ​​such as the construction site, the measurement robot, the measurement date and time, the measurement value (position), the measurement value (temperature), the judgment result (degree of progress of hardening), and the judgment result (degree of finishing).

[0070] Among these, the construction site is identification information that uniquely identifies the construction site of the concrete floor 1 where the small robot 20 that performs various measurements is placed. Also, the measurement execution robot is identification information that uniquely identifies the small robot 20 that performs position and temperature measurements at the construction site. The measurement date and time is information about the date and time when the measurement was performed by the small robot 20.

[0071] The measured value (position) is a value indicating the position information of the small robot 20 measured by the position measuring device 23 of the small robot 20 on the above-mentioned measurement date and time. Specifically, it is the position coordinate (for example, two-dimensional x and y coordinate values) of the small robot 20 in the coordinate system applied to the floor surface 2 of the concrete floor 1. The measured value (temperature) is the value of the surface temperature of the floor surface 2 (the part scraped up by the blade mechanism 21 of the small robot 20) measured by the temperature measuring device 24 on the above-mentioned measurement date and time.

[0072] In the example of FIG. 7, the measurement value (position) of each of the two records relating to the measurement dates and times "1 / 8 08:38:05" and "1 / 8 08:38:06" by the small robot "RB101" is the same, "012,005." This indicates that the measurement results were obtained for the same part of the floor surface 2 at different times, such as before and after the rubbing action. Based on the difference in the temperatures measured at each of these times, the determination unit 321 determines the degree of hardening of the part. The value of this degree of hardening is set in the determination result (degree of hardening) column of the measurement value DB 311.

[0073] On the other hand, among the records in Figure 7, there is only one record for the measurement value (position) "184,122" by the small robot "RB102," with the measurement date and time "1 / 8 08:38:03," and measurement results at different times have not yet been obtained. Therefore, the degree of hardening has not been determined, and no value has been set in the determination result (degree of hardening) column.

[0074] The value of the determination result (level of finishing) is determined based on the value of the progress of hardening determined by the determining unit 321 and the corresponding appropriate finishing content determined based on the reference table 312.

[0075] <Configuration of the reference table> Next, the reference table 312 will be described with reference to Fig. 8. Fig. 8 is a diagram showing an example of the configuration of the reference table 312 in this embodiment. The reference table 312 in this embodiment is a table that specifies the criteria and judgment results used by the work management device 30 to judge the degree of hardening of the floor surface 2 and the appropriate level of finishing work corresponding to the degree of hardening, based on the measurement results obtained from the small robot 20. The data configuration is a collection of records that include values ​​such as a reference ID, judgment event, judgment data, reference value, and judgment result.

[0076] Of these, the criterion ID is identification information that uniquely identifies each criterion. The judgment event is a value that indicates the event that is the subject of judgment in the criterion, i.e., the degree of progress of hardening of the floor surface 2 and the degree of finishing work on the floor surface 2. The judgment data is information about the data required for judging the judgment event. The reference value is a value that indicates a threshold value or the like that serves as the reference when judging the event using the judgment data. The judgment result is the judgment result specified for the event when the judgment data matches any of the reference values. For example, if the judgment data "temperature difference before and after scrubbing" for the judgment event "degree of progress of hardening" is the reference value "0.8°C or more," the degree of progress of hardening of the floor surface 2 will be judged to be "degree of progress of hardening A."

[0077] <Device Management DB Configuration> Next, the device management DB 1011 will be described with reference to Fig. 9. Fig. 9 is a diagram showing an example of the configuration of the device management DB 1011 in this embodiment. The device management DB 1011 in this embodiment is a database provided in the control device 100, and is a database that stores information on each device managed and controlled by the control device 100. This device management DB 1011 is a collection of records including data such as device ID, type, linked devices, communication information, current location, status, control information, and operation history.

[0078] Of these, the device ID is identification information that uniquely identifies the target device. The type is information that indicates whether the device in question is a Trowell 40 or a small robot 20. The linked device is information that indicates the device with which the device in question is linked; if the device in question is a Trowell 40, the identification information of the small robot 20 is set, and if the device in question is a small robot 20, the identification information of the Trowell 40 is set. The communication information is the identification information and network address (such as a fixed IP address assigned by a router on network N, etc.) of the communication device of the device in question. When communicating with a Trowell 40 or a small robot 20, the control device 100 communicates in accordance with this communication information and the protocol of network N.

[0079] The current position is the current position of the device on the floor 2 (measured by the position measuring device 23 or 43). The status is information indicating the operating status of the device. This status is set to two values, "operating" or "stopped," depending on the presence or absence of alive monitoring information (ping) sent at regular intervals from the control unit of each device (control unit 25 of the small robot 20, control unit 44 of the Trowell 40).

[0080] The control information is identification information of the control information obtained from the work management device 30 at least for the trowel 40. The specific content of this control information will be described later. The operation history is a value indicating the status of the finishing operation performed by the device, i.e., the trowel 40. Specifically, it is a value determined based on the position information obtained from the trowel 40 and information on the driving status of the finishing blade mechanism 41, which is the number of finishing operations performed for each part of the floor surface 2 (for example, it is determined that the finishing blade mechanism 41 was driven in two different time periods for the same area, and it is determined that the finishing operation has been performed twice).

[0081] Note that the control information and operation history information may also be stored in the record related to the small robot 20. In this case, the control information related to the small robot 20 obtained from the work management device 30 is stored in the control information field. In addition, the operation status of the small robot 20 obtained from the small robot 20 (for example, its position on the floor 2 and whether or not it is measuring the temperature) is stored in the operation history field.

[0082] <Configuration of control information DB> Next, the control information DB 1012 will be described with reference to FIG. 10. FIG. 10 is a diagram showing an example of the configuration of the control information DB 1012 in this embodiment. The control information DB 1012 in this embodiment is a database in which the control device 100 stores and manages control information obtained from the work management device 30. This control information DB 1012 is a collection of records including values ​​such as a control information ID, a target device, and control content. Of these, the control information ID is identification information that uniquely identifies the control information. The target device is identification information that uniquely identifies the device to be controlled. The control content is a data set that specifies, for example, information on the movement path, movement speed, and finishing operation (the degree of drive of the finishing blade mechanism 41) of the trowel 40 on the floor surface 2.

[0083] <Measurement result acquisition flow> Next, an example of the flow of the work management method in this embodiment will be described. Fig. 11 is an example of the flow of the work management method in this embodiment, specifically, a diagram showing the flow of acquiring the measurement results of the position and temperature from the small robot 20.

[0084] First, the position measuring device 23 and temperature measuring device 24 of each small robot 20 measure various parts of the floor surface 2 while the small robot is moving (S1). The movement of the small robot 20 on the floor surface 2 and the operation of measuring the temperature are automatically executed based on control information preset from the work management device 30, for example. The control information indicates the movement path on the floor surface 2 as a series of coordinate values, and instructs the implementation of position and temperature measurements at regular intervals.

[0085] Furthermore, in parallel with or in conjunction with the temperature measurement of the floor surface 2 by the temperature measuring device 24, the small robot 20 drives the blade mechanism 21 before the temperature measurement and performs a rubbing action on the floor surface 2. Therefore, the temperature measurement by the temperature measuring device 24 measures the surface temperature of the floor surface 2 at least at the timing before and after the rubbing action.

[0086] Next, the position measuring device 23 and the temperature measuring device 24 in the small robot 20 transmit the measurement results obtained in step S1 to the work management device 30 via their own communication device 26 (S2). This transmission is performed in real time or at regular intervals. When transmission is performed at regular intervals, the measurement results accumulated during that time are transmitted all at once.

[0087] Meanwhile, the work management device 30 acquires measurement results from the small robot 20 via the network N and its own communication device 36 (S2), creates a record including these results, and stores the record in the measurement value DB 311 (S3). The measurement results stored in the measurement value DB 311 here include the identification information of the construction site where the small robot 20 is deployed and the small robot 20, the measurement date and time, location, and temperature. Note that the control information set for the small robot by the work management device 30 also indicates values ​​that include the identification information of the construction site where the small robot 20 is deployed, and can be used by the small robot 20 as appropriate.

[0088] By repeating these processes of S1 to S3 over time, the results of measurements taken by each small robot 20 on the floor surface 2 of the concrete floor 1 are collected, and the measurement value DB 311 grows.

[0089] <Flow chart for determining the degree of hardening> Next, an example of a flow for determining the degree of progress of hardening for the floor surface 2 in this embodiment will be described. Fig. 12 is an example flow for the work management method in this embodiment, and specifically, a diagram showing a flow for determining the degree of progress of hardening for the floor surface 2 by the determination unit 321. In this case, the determination unit 321 of the work management device 30 extracts, from the records stored in the measurement value DB 311, records that contain, as a key, identification information for the construction site specified by the user, for example, for the floor surface 2 of the concrete floor 1 that is the subject of this hardening degree determination (S5).

[0090] Next, the determination unit 321 reads the measurement date and time and the measurement value (temperature) from the records extracted in step S5 that relate to the same portion of the floor surface 2, i.e., from each record with the same measurement value (position) (S6). Furthermore, based on the measurement date and time and the measurement value (temperature) for each portion of the floor surface 2 obtained in step S6, the determination unit 321 identifies two measurement values ​​(temperatures) measured within a certain period of time (e.g., within one second) for each portion, and calculates the temperature difference between the measurement values ​​(S7). In the example record for "RB101" in the measurement value DB 311 of FIG. 7, a temperature difference of 30.3 - 29.6 = 0.7°C is calculated for the portion of the floor surface 2 with coordinate values ​​of "012,005." This temperature difference corresponds to the temperature difference that occurred before and after the scraping action by the blade mechanism 21 of the small robot 20.

[0091] The determination unit 321 compares the temperature difference calculated for each part in S7 with the record for the determination event "degree of progress of hardening" in the reference table 312 to determine the degree of progress of hardening for that part (S8), and then ends this flow. In this case, the determination unit 321 compares the temperature difference value obtained in S7 with each value in the "Reference Value" column for the reference ID "R001" in the reference table 312, and identifies the value in the "Determination Result" column of any matching reference value, i.e., the degree of progress of hardening. For example, if the temperature difference calculated in S7 is 0.7°C, this matches the reference value "0.5°C or more and less than 0.8°C," and the determination result "degree of progress of hardening B" indicated by the identified record can be identified as the degree of progress of hardening for that part. The value of the degree of progress of hardening for each part thus identified is set in the determination result (degree of progress of hardening) column of the target record in the measurement value DB 311 (the target record whose measurement value (position) column contains coordinate values ​​corresponding to that part).

[0092] 12, the value of the degree of progress of concrete hardening in each part of the floor surface 2 is identified, as shown in the measurement value DB 311 in Fig. 7. The determination unit 321 determines the degree of finishing, which will be described next, based on the value of the degree of progress of hardening thus identified.

[0093] The screen generation unit 322 of the work management device 30 may generate a visualized graph, such as a heat map, of the temperature difference calculated for each part of the floor surface 2 before and after the rubbing operation, or the degree of progress of hardening in each part of the floor surface 2 determined as described above, and output this to an external device. In this case, the external device is not particularly limited, but may be, for example, at least one of the output device 35 of the work management device 30, the control device 100, the control unit 44 of the trowell 40, and a terminal carried by the operator of the trowell 40.

[0094] In this case, the screen generation unit 322 references the measurement value (position), measurement value (temperature), and judgment result (degree of progress of hardening) of each record in the measurement value DB 311, and identifies the position information of each part of the floor surface 2 and the calculated temperature difference or the judged degree of progress of hardening for that part. The screen generation unit 322 also generates a visualized graph such as a heat map by arranging display objects indicating the temperature difference or degree of progress of hardening for each part on map data corresponding to a coordinate system previously set for the floor surface 2. The heat map 1002 can be generated by adopting and using a known heat map generation engine.

[0095] FIG. 14 shows an example of a heat map 1002 that can be generated as described above. The output screen 1000 of the heat map 1002 shown in FIG. 14 includes various meta-information 1001 about the construction site (e.g., ID, person in charge, construction area, information about the trowel 40 and small robot 20 to be deployed, etc.), the heat map 1002, and a legend 1003 indicating the temperature difference and the progress of hardening. The heat map 1002 can be configured such that a display object 1004 is centered on a specific portion 3 of the floor surface 2. The specific portion 3 is an area where the temperature difference is particularly large and requires careful consideration before carrying out finishing work. FIG. 14 shows an example of a heat map 1002 generated with a focus on the temperature difference phenomenon. By viewing the heat map 1002, workers can recognize the progress of hardening in each portion of the floor surface 2 and easily estimate the feasibility and extent of finishing work using the trowel 40.

[0096] <Determining control content and execution flow> Next, an example of a flow for determining and executing control content in this embodiment will be described. Fig. 13 is an example of a flow for a work management method in this embodiment, specifically a diagram showing a flow for determining control content and executing control in the trough well 40.

[0097] In this case, the determination unit 321 of the work management device 30 extracts the hardening progress value for each portion of the floor surface 2 obtained by the flow shown in FIG. 12 from the measurement value DB 311, compares it with the record for the determination event "Level of Finishing Work" in the reference table 312, and determines the content of the finishing work (S10). More specifically, the determination unit 321 identifies the "determination result" that matches the hardening progress value among the reference values ​​"A" to "D" in the record for "Level of Finishing Work" in the reference table 312. In the example shown in FIG. 8, if the hardening progress value is "A," it is determined that the floor surface 2 of the concrete floor 1 in that portion has hardened to the extent that finishing work would be adversely affected, and finishing work should be avoided. On the other hand, if the hardening progress value is "B," it is determined that the floor surface 2 of the concrete floor 1 in that portion has hardened to a certain extent, and finishing work should be performed in a reduced form (for example, only once instead of three times as is usually done). If the value of the degree of hardening progress is "C", it is determined that the hardening of the floor surface 2 of the concrete floor 1 in that part is suitable for finishing work and should be carried out the usual number of times (for example, three times). If the value of the degree of hardening progress is "D", it is determined that the floor surface 2 of the concrete floor 1 in that part is still in a fresh state and should be left in a standby state without finishing work being carried out.

[0098] Next, the determination unit 321 sets the details of the finishing work determined in step S10 in the determination result (level of finishing) field of the record related to the target part among the records in the measurement value DB 311 (S11). Furthermore, the determination unit 321 generates data on the control details of the trowell 40 based on the details of the finishing work determined in S10 (S12).

[0099] When generating this control content data, the determination unit 321 performs a search in the device management DB 1011 of the control device 100, for example, using the identification information of the small robot 20 that is the source of the measurement results used to determine the degree of hardening progress as a key. This search identifies the trowel 40 that is linked to the small robot 20. Furthermore, based on the identified current position of the trowel 40, the determination unit 321 uses a known path search engine to identify the movement path to each part on the floor surface 2. Note that this position information is, for example, a predetermined position on the floor surface 2 as a waiting location for the trowel 40 before the start of finishing work, such as before the start of work. Alternatively, the determination unit 321 obtains this position information from the control unit 44 of the trowel 40, or searches and identifies it in the device management DB 1011 of the control device 100.

[0100] The judgment unit 321 describes the information obtained as described above, such as the trowel 40 that performs the finishing work on each part of the floor surface 2, the content of the finishing work, the position of each part, and the path to each part (the movement path from the current position of the trowel 40 to each part), in a form that follows, for example, the control protocol of the finishing blade mechanism 41 and traveling mechanism 42 in the trowel 40, and generates information on the control content, i.e., control information.

[0101] The determination unit 321 transmits the control information to the control device 100 via the communication device 36 (S13). Meanwhile, the control device 100 receives this control information, assigns a control information ID to it, associates it with the identification information of the corresponding trowell 40, and stores it in the control information DB 1012 (S14). The control device 100 also stores the control information ID assigned in S14 in the control information column of the record in the device management DB 1011 for the trowell 40, which is the target device (S15).

[0102] The control device 100 transmits the above control information to the control unit 44 of the target trowel 40 for setting (S16). Based on the control information, the control unit 44 of the trowel 40 operates the travel mechanism 42 to move the trowel 40 across the floor surface 2, and also performs the finishing operation using the finishing blade mechanism 41 a specified number of times (finishing degree) for each of the above sections (S17). The history of these finishing operations is notified to the control device 100 by the control unit 44 of the trowel 40 and serves as material for updating the value in the operation history column of the device management DB 1011. For example, if the control unit 44 of the trowel 40 notifies the control device 100 that one finishing operation has been performed on a specific section of the floor surface 2, the control device 100 increments the value of the number of finishing operations performed by the trowel 40 in the target area of ​​the floor surface 2.

[0103] Based on the control information, the screen generator 322 may generate a screen 1010 (FIG. 15) that clearly indicates in text the details of the finishing work for each portion of the floor surface 2, and output this in the same manner as the screen 1000 of FIG. 14. The screen 1010 shown in FIG. 15 includes, in addition to meta information 1011, text information 1012 that describes the details of the finishing work for each area corresponding to each portion of the floor surface 2. A control information setting button 1013 is also provided on this screen 1010, and when this button is pressed, the screen generator 322 may set the control details indicated in the text information 1012 as control information in the control unit 44 of the target trowell 40 via the control device 100.

[0104] While one embodiment of the work management system and work management method of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and is not intended to limit the present invention. In other words, the present invention may be modified or improved without departing from the spirit of the present invention. Furthermore, the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0105] N Network 1. Concrete floor 2 Floor 3 Specific parts 5. Driving route 10 Work Management System 20 Small robot (running device) 21 Blade mechanism (rubbing part) 22 Running mechanism 23 Position measuring instrument 24 Temperature measuring instrument 25 Control Unit 26 Communication equipment 30 Work management device 31 Auxiliary storage device 311 Measurement Value DB 312 Reference Table 32 Programs 321 Judgment section 322 Screen generation section 33 Main memory 34 Arithmetic unit 35 Output Device 36 Communication equipment 40 Trowell (Finishing Equipment) 41 Finishing blade mechanism 42 Running mechanism 43 Position Measuring Instrument 44 Control Unit 45 Communication equipment 46 cockpit 47 Operating lever 100 control device 101 Auxiliary storage 1011 Device management DB 1012 Control Information DB 102 Programs 1021 Control Execution Unit 103 Main storage 104 Arithmetic equipment 105 Communication equipment

Claims

1. A work management system for managing floor finishing work in the construction of concrete floors, a traveling device having a rubbing unit that performs a rubbing action on the floor surface and that travels on the floor surface; a position measuring device that measures the position of the traveling device; a temperature measuring device for measuring the temperature of each part of the floor surface; a computing device that calculates the position of each part of the floor surface and the temperature difference at each part before and after the scrubbing operation based on the measurement results of the position measuring device and the measurement results of the temperature measuring device before and after the scrubbing operation, and determines specific parts of the floor surface where the temperature difference is equal to or greater than a reference value; A work management system with

2. The computing device determining the degree of finishing work required for the floor surface of the determined specific portion according to the degree of difference between the temperature difference and the reference value; The work management system according to claim 1 .

3. The traveling device is a moving body equipped with the position measuring device and the temperature measuring device; The work management system according to claim 2 .

4. The work management system described in claim 3 includes a control device for a finishing device that performs finishing work on the surface of the concrete floor, which acquires from the arithmetic device information on the position of the specific part and the degree of finishing work on the floor surface determined for the specific part, and instructs the finishing device on the content of the finishing work on the specific part depending on the degree of the finishing work.

5. The traveling device is The finishing device is smaller or lighter than the finishing device, and one or more of the finishing devices are arranged for each finishing device.

5. The work management system according to claim 4.

6. The computing device The specific portion of the floor surface where the temperature difference is equal to or greater than the reference value is visualized and displayed on a screen. The work management system according to claim 1 .

7. A management device for managing floor finishing work in the construction of concrete floors, a traveling device having a rubbing section that performs a rubbing action on the floor surface and that travels on the floor surface, a position measuring device that measures the position of the traveling device, a temperature measuring device that measures the temperature of each part of the floor surface, and a communication device that performs communication; a computing device that acquires, via the communication device, the measurement results of the position measuring device and the measurement results of the temperature measuring device before and after the scrubbing action, calculates the position of each part of the floor surface and the temperature difference at each part before and after the scrubbing action based on the acquired measurement results, and determines specific parts of the floor surface where the temperature difference is equal to or greater than a reference value; A work management device comprising:

8. A work management device that manages floor finishing work in the construction of concrete floors, a step of communicating with a traveling device having a rubbing unit that performs a rubbing action on the floor surface, a position measuring device that measures the position of the traveling device, and a temperature measuring device that measures the temperature of each part of the floor surface, and acquiring the measurement results of the position measuring device and the measurement results of the temperature measuring device before and after the rubbing action; calculating the position of each part of the floor surface and the temperature difference before and after the scrubbing action for each part of the floor surface based on the acquired measurement results, and determining a specific part on the floor surface where the temperature difference is equal to or greater than a reference value; A work management method characterized by carrying out the steps of:

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