JP2020135531A - Alert output system, alert output method, and program - Google Patents

Abstract

To secure the safety at a construction site.SOLUTION: An alert output system (S) comprises: position information acquisition means (101) which acquires position information on a position of a worker at a construction site; detection means (102) which detects communication performed among workers; determination means (103) which determines whether or not there is a worker who does not have communication with a specific worker relating to a caution region at the construction site, in the caution region, on the basis of the position information and a detection result of the detection means (102); and output means (104) which issues a predetermined alert when it is determined that there is a worker who does not have communication with the specific worker in the caution region.SELECTED DRAWING: Figure 7

Description

The present invention relates to an alert output system, an alert output method, and a program.

Conventionally, at a construction site, an accident may occur if the worker's attention is insufficient or the worker concentrates too much on the work, and a technique for improving safety has been studied. For example, Patent Document 1 describes a technique that uses an RFID tag to detect whether or not there is a worker in an area around a construction machine such as a forklift, and sounds an alarm when it is determined that there is a worker. Are listed.

Japanese Unexamined Patent Publication No. 2016-194481

However, in the technique of Patent Document 1, when noise is generated around the worker, the worker may not notice the alarm. Also, even if the noise is relatively low, the worker may not notice the alarm if he is too focused on the work. In such a case, the worker cannot be aware of the approaching construction machine, so that the safety at the construction site may not be guaranteed.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an alert output system, an alert output method, and a program capable of ensuring safety at a construction site.

In order to solve the above problems, the alert output system according to one aspect of the present invention detects the position information acquisition means for acquiring the position information regarding the position of the worker at the construction site and the communication performed between the workers. Based on the detection means, the position information, and the detection result of the detection means, there is a worker who cannot communicate with a specific worker related to the caution area in the caution area of the construction site. A determination means for determining whether or not to do so, and an output means for outputting a predetermined alert when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention. It is characterized by including.

The alert output method according to one aspect of the present invention includes a position information acquisition step for acquiring position information regarding the position of a worker at a construction site, a detection step for detecting communication between workers, and the position information. Based on the detection result of the detection step, it is determined whether or not there is a worker who cannot communicate with the specific worker related to the caution area in the caution area of the construction site. It is characterized by including a step and an output step of outputting a predetermined alert when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention.

The program according to one aspect of the present invention includes a position information acquisition means for acquiring position information regarding the position of a worker at a construction site, a detection means for detecting communication between the workers, and the position information and the detection means. A determination means for determining whether or not there is a worker who cannot communicate with a specific worker related to the caution area in the caution area of the construction site based on the detection result. When it is determined that there is a worker who cannot communicate with the specific worker in the attention area, the computer functions as an output means for outputting a predetermined alert.

Further, in one aspect of the present invention, the area requiring attention is the work range of the construction machine at the construction site, the specific worker is the operator of the construction machine, and the determination means is the work. It is determined whether or not there is a worker who cannot communicate with the operator in the range, and the output means determines that there is a worker who cannot communicate with the operator in the work range. When it is determined, the alert is output.

Further, in one aspect of the present invention, the area requiring attention is the work range of the work group at the construction site, the specific worker is the manager of the work group, and the determination means is the work. It is determined whether or not there is a worker who cannot communicate with the manager in the range, and the output means determines that there is a worker who cannot communicate with the manager in the work range. When it is determined, the alert is output.

Further, in one aspect of the present invention, when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention, the output means issues the alert to the worker. It is characterized by outputting.

Further, in one aspect of the present invention, when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention, the output means is assigned to the specific worker. It is characterized by outputting an alert.

Further, in one aspect of the present invention, the output means includes information indicating at least one of the position and name of a worker who is not in communication with the specific worker, which is present in the area requiring attention. It is characterized in that the alert is output to a specific worker.

Further, in one aspect of the present invention, the output means has the specific worker in the attention-requiring area from the state where the worker who cannot communicate with the specific worker exists in the attention-requiring area. It is characterized in that the output of the alert is stopped when there is no worker who cannot communicate with the worker.

Further, in one aspect of the present invention, the alert output system further includes a reset means for resetting the established state of communication between the workers based on a predetermined condition, and the detection means is reset by the reset means. After that, the communication between the workers can be detected again.

Further, in one aspect of the present invention, the communication is a conversation between the workers, the detection means detects the conversation between the workers, and the determination means is in the area requiring attention. It is determined whether or not there is a worker who has not participated in the conversation with the specific worker, and the output means does not participate in the conversation with the specific worker in the area requiring attention. It is characterized in that the alert is output when it is determined that a member exists.

According to the present invention, safety at the construction site can be ensured.

It is a figure which shows the whole structure of the alert output system which concerns on embodiment. It is a figure which shows an example of the construction site where an alert output system is used. It is a figure which shows an example of the screen displayed on a worker terminal. It is a figure which shows an example of the scene where an alert output system is applied. It is a figure which shows an example of the scene where an alert output system is applied. It is a figure which shows an example of the scene where an alert output system is applied. It is a functional block diagram which shows an example of the function realized by an alert output system. It is a figure which shows the data storage example of the worker data. It is a flow chart which shows the process executed by an alert output system.

[1. Overall configuration of alert output system]
Hereinafter, embodiments according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an overall configuration of an alert output system according to an embodiment. As shown in FIG. 1, the alert output system S includes a server 10 and a plurality of worker terminals 20. Although only one server 10 is shown in FIG. 1, there may be a plurality of servers 10. Further, the number of worker terminals 20 may be at least as many as the number of workers, and may be any number.

The server 10 is a server computer. For example, the server 10 includes a control unit 11, a storage unit 12, and a communication unit 13. The control unit 11 includes at least one processor. The control unit 11 executes processing according to the programs and data stored in the storage unit 12. The storage unit 12 includes a main storage unit and an auxiliary storage unit. For example, the main storage unit is a volatile memory such as RAM, and the auxiliary storage unit is a non-volatile memory such as a hard disk or flash memory. The communication unit 13 includes a communication interface for wired communication or wireless communication, and performs data communication via a network, for example.

The worker terminal 20 is a computer operated by a worker at a construction site. The construction site is a place where construction is performed, and may be referred to as, for example, a construction site, a construction site, or a demolition site. Arbitrary construction may be performed at the construction site, for example, buildings, roads, bridges, tunnels, dams, and the like. A worker is a person who performs work at a construction site, and is, for example, a construction machine operator, a work group manager, a site supervisor, a rebar work, a formwork work, a concrete work, or a temporary work. Construction machinery is also called heavy machinery, such as cranes, excavators, or forklifts.

For example, the worker terminal 20 is a personal computer, a mobile information terminal (including a tablet computer and smart glasses), a mobile phone (including a smartphone), and the like. It includes a control unit 21, a storage unit 22, a communication unit 23, an operation unit 24, a display unit 25, a position detection unit 26, and a voice detection unit 27. The control unit 21, the storage unit 22, and the communication unit 23 have the same hardware configuration as the control unit 11, the storage unit 12, and the communication unit 13, respectively. The operation unit 24 is an input device, for example, a pointing device such as a touch panel or a mouse, a keyboard, or the like. The operation unit 24 transmits the operation content to the control unit 21. The display unit 25 is, for example, a liquid crystal display unit, an organic EL display unit, or the like.

The position detection unit 26 is a device for detecting a position on the earth, and includes, for example, a GPS sensor (GPS receiver). For example, the position detection unit 26 receives a signal from a satellite and acquires latitude / longitude information as position information. Various known methods can be applied to the position detection method itself, and the position detection unit 26 may use an apparatus corresponding to the detection method, and may use a plurality of detection methods in a complex manner. The detection accuracy may be improved.

For example, when GNSS other than GPS (for example, GLONASS, Galileo, or QZSS) is used, the position detection unit 26 includes a receiver corresponding to the GNSS to be used. Further, for example, when using Beacon positioning, the position detection unit 26 includes a Beacon receiver. Further, for example, when UWB positioning is used, the position detection unit 26 includes a tag that transmits a UWB signal, and a plurality of sensors that receive the UWB signal are arranged at the construction site. Further, for example, when Wi-Fi positioning is used, the position detection unit 26 includes a communication interface for Wi-Fi. Further, for example, when using sound wave positioning, the position detection unit 26 includes a sound wave detection sensor. Further, for example, when using dead reckoning positioning, the position detection unit 26 includes various sensors such as a gyro sensor and an acceleration sensor. Further, for example, when IMES positioning is used, the position detection unit 26 includes a plurality of sensors such as a GPS sensor, a gyro sensor, and an acceleration sensor. Further, for example, when using Visual-SLAM positioning, the position detection unit 26 includes a camera, a depth sensor, and the like. Further, for example, when RFID positioning is used, the position detection unit 26 includes an RFID receiver.

The voice detection unit 27 includes at least one microphone and detects voice.

The programs and data described as being stored in the storage units 12 and 22 may be supplied to the server 10 or the worker terminal 20 via the network. Further, the hardware configurations of the server 10 and the worker terminal 20 are not limited to the above examples, and various hardware can be applied. For example, each of the server 10 and the worker terminal 20 has a reading unit for reading a computer-readable information storage medium (for example, an optical disk drive or a memory card slot) or an input / output unit for directly connecting to an external device (for example). , USB terminal) may be included. In this case, the program or data stored in the information storage medium may be supplied to each of the server 10 and the worker terminal 20 via the reading unit or the input / output unit.

[2. Overview of alert output system]
The alert output system S is used to ensure the safety of the construction site. At construction sites, accidents may occur due to defects in equipment such as construction machinery, but accidents often occur due to the workers themselves, such as lack of attention and excessive concentration of workers. Conventionally, as a method of preventing such an accident, thorough calling work has been carried out. However, even if the voice-calling work is thoroughly carried out, the voice may not reach the worker if the worker's attention is insufficient or the work is too concentrated.

It is also known to place road cones and fences at the construction site to clearly indicate the areas to be noted, but it is meaningless unless the workers visually recognize it, and the workers do not notice it. There is. In addition, as explained in the prior art, in the method in which the construction machine outputs a warning to call attention, the worker may not notice due to ambient noise, etc., and the worker's attention may be insufficient or the work may be completed. You may not notice it if you are focused.

It is also conceivable to forcibly stop the construction machine when a worker invades the work range of the construction machine, but a secondary disaster (for example, a fall of a suspended load or a collapse of a load) occurs due to the forced stop. It is dangerous and does not provide a fundamental measure against workers' lack of attention or excessive concentration. In addition, it is possible to forcibly output an alert when a worker invades an area to be noted, but since the area to be noted is fluid at the construction site, the method of forcibly outputting an alert is limited. There is. For example, even if it is within the working range of a crane, it is considered safe if it is slinging to hang a load. Therefore, if an alert is output even in such a case, it will rather interfere with the work.

Therefore, the alert output system S of the present embodiment detects communication between workers at the construction site, and can communicate with the operator of the construction machine and the manager of the work group in the area requiring attention at the construction site. An alert is output when there are no workers.

Communication is communication between workers, such as conversation, chat, or gesture. The area requiring attention is an area that should be noted at the construction site, for example, the work range of construction machinery, the control range of managers, the surroundings of workers who work with dangerous equipment, and materials are piled up. Area, area around the scaffold, or vehicle traffic range. The area requiring attention can also be an area to be judged for communication, an area where danger may occur at the construction site, or an area to be monitored at the construction site. An alert is a notification (warning or alarm) indicating that communication is not possible, and is performed, for example, visually, audibly, or tactilely.

FIG. 2 is a diagram showing an example of a construction site where the alert output system S is used. In the example of FIG. 2, the worker A operates the construction machine 30 and is in charge of the material transportation work. Since the construction machine 30 moves on the construction site by the operation of the worker A, other workers in the vicinity of the construction machine 30 need to pay attention to the operation of the construction machine 30. Therefore, the alert output system S sets the caution area 40 based on the position information acquired by the worker terminal 20 of the worker A. The caution area 40 may have an arbitrary size and shape, and here, n meters around the worker A (n is an arbitrary positive number, for example, about 1 meter to 30 meters). In the example of FIG. 2, it is assumed that there are three workers B to D in the caution area 40.

For example, when the construction machine 30 is moved, the worker A calls out to the workers B to D, "I will move!". On the other hand, each of the workers B to D makes a reaction such as replying or raising a hand. When all the members reply, all the members in the caution area 40 are communicating with the worker A and are aware of the existence of the construction machine 30, so that the safety is guaranteed. On the other hand, if there is a worker among the workers B to D who did not reply, the worker may not be aware of the existence of the construction machine 30 due to lack of attention or excessive concentration. Therefore, the alert output system S outputs an alert.

For example, the alert output system S determines whether or not a conversation with the worker A is established based on the voices detected by the worker terminals 20 of the workers A to D, and determines whether or not a conversation with the worker A is established, and the attention-requiring area 40. It is determined whether or not there is a worker who has not established a conversation with the worker A. The alert output system S outputs an alert when it is determined that there is a person who has not established a conversation with the worker A. The alert may be output to a person who is unaware of the voice of the worker A, but here, a case where the alert is output to the worker A will be described.

FIG. 3 is a diagram showing an example of a screen displayed on the worker terminal 20. As shown in FIG. 3, an application that supports work at the construction site is installed in the worker terminal 20, and the screen G of the application is displayed on the display unit 25. Here, since the screen of the worker A is taken as an example, a screen for supporting the operation of the construction machine 30 is displayed. In the following description, when it is necessary to distinguish between individual screens, a number is added after the code of G, such as G1 to G3.

For example, as shown on the screen G1, the caution area 40 is displayed centering on the worker A or the construction machine 30. Since each of the workers B to D in the area requiring attention possesses the worker terminal 20, the position information is acquired by the position detection unit 26. The position information of each of the workers B to D is uploaded to the server 10, and each position of the workers B to D is displayed on the screen G1. In the example of FIG. 3, a triangular icon indicating each of the workers B to D is displayed on the screen G1, and the worker A can know the relative position of each of the workers B to D.

In the present embodiment, on the screen G1, it is possible to identify whether or not the conversation between the worker A and the workers B to D is established. For example, a worker who has a conversation with the worker A is displayed with an icon of the first display mode (white in FIG. 3), and a worker who has not established a conversation with the worker A. Is displayed as an icon in the second display mode (shaded in FIG. 3). At the time of the screen G1, the worker A is not speaking and the conversation with nobody is not established, so that each icon of the workers B to D is displayed in the second display mode.

For example, when the worker A calls out to the surroundings, it is determined that the conversation has been established for the worker who has returned a reply, and the display mode of the icon changes. For example, as shown on the screen G2, if the workers B and D respond to the voice of the worker A, the icons of the workers B and D are the first display modes. Since the workers B and D are replying and are aware of the existence of the construction machine 30, the safety of the workers B and D is guaranteed.

On the other hand, if the worker C does not reply to the voice of the worker A, the icon of the worker C remains in the second display mode. Since the worker C has not responded and is unaware of the existence of the construction machine 30, it is highly possible that the safety of the worker C is not guaranteed. Therefore, as shown on the screen G2, a message such as "Be careful of Mr. C!" Is displayed as an alert. As a result, the worker A can easily grasp who should be careful.

After that, when the worker A calls the worker C again, such as "Mr. C, did you hear it !?" and receives a reply, the icon of the worker C appears as shown on the screen G3. This is the first display mode, and the alert is cleared. As a result, it is confirmed that the workers B to D in the caution area 40 are aware of the existence of the construction machine 30, and the safety of all the workers is ensured. The alert output system S can be applied to various situations, and is not limited to the situations illustrated in FIGS. 2 and 3. Hereinafter, examples of other application situations will be described.

4 to 6 are diagrams showing an example of a scene in which the alert output system S is applied. FIG. 4 shows a scene in which four workers E to H belong to a work group and worker E, who is the manager of the work group, speaks to them. When the work group is decided in advance, each of the workers E to H may be registered as a conversation partner in advance. The area requiring attention 40 indicates an area to be managed by the worker E, and is, for example, an area centered on the worker E. Since the workers F to H are under the control of the worker E, in principle, they work in the caution area 40.

Worker E always pays attention to the surroundings, and confirms whether or not the situation requires the workers F to H to pay attention, such as when a worker with reinforcing bars or a construction machine 30 passes nearby. To do. When the situation requires attention, the worker E calls out to the workers F to H. On the other hand, if the workers F and G reply, the workers F and G notice the voice of the worker E and pay attention to the surroundings, so that the safety is guaranteed.

On the other hand, if the worker H does not reply, the worker H may not be aware of the voice of the worker E and may not pay attention to the surroundings. In this case, the same alert as in FIG. 3 is output to the worker terminal 20 of the worker E, and the worker E calls the worker H again. When a reply is returned from the worker H, he notices the voice of the worker E and pays attention to the surroundings, so that the safety is guaranteed. Therefore, the alert on the worker terminal 20 of the worker E is deleted. As described above, the safety of all the workers in the caution area 40 is ensured.

In the present embodiment, if the worker H cannot directly communicate with the administrator worker E, an alert is output, and even if the worker H can communicate with the worker F or G (that is,). An alert shall be output even if there is indirect communication with worker E). This point is the same in FIGS. 5 and 6 described later.

FIG. 5 shows a scene in which the worker I controls the construction machine 30A and the worker L controls the construction machine 30B. As shown in FIG. 5, the caution area 40A is set around the construction machine 30A, and the caution area 40B is set around the construction machine 30B. The individual setting methods of the caution areas 40A and 40B are as described with reference to FIG. Here, it is assumed that the workers K and L are working in the caution area 40A, and the workers L and M are working in the caution area 40B.

Worker I speaks to the surroundings when moving the construction machine 30A. On the other hand, if the workers K and L reply, everyone in the caution area 40A is aware of the existence of the construction machine 30A, and the safety in the caution area 40A is guaranteed. Become. It should be noted that the workers J and M are located away from the caution area 40A and do not need to pay much attention to the construction machine 30A, so that they do not have to reply in particular.

Similarly, the worker J calls out to the surroundings when moving the construction machine 30B. On the other hand, if only the worker M replies, the worker M is aware of the existence of the construction machine 30B, but the worker L concentrates on the construction machine 30A and becomes aware of the existence of the construction machine 30B. You may not be aware of it. In this case, the same alert as in FIG. 3 is output to the worker terminal 20 of the worker J, and the worker J calls the worker L again and returns a reply from the worker L. When it comes, the alert will be cleared. In this case, everyone in the caution area 40B is aware of the existence of the construction machine 30B, and the safety of the caution area 40B is guaranteed. It should be noted that the workers I and K are located away from the caution area 40B and do not need to pay much attention to the construction machine 30B, so that they do not have to reply in particular.

FIG. 6 shows a scene in which the worker N operates the construction machine 30 to unload the load. In this case, since the worker needs to be careful about dropping the load, the caution area 40 is set below the load. For example, when a place for slinging a load or a place for unloading a load is predetermined, the caution area 40 is set in the vicinity of the place. Further, for example, when the place where the load is hung or unloaded is fluid, it is necessary to arrange the same configuration as the position detection unit 26 on the load or hook and detect the position information of the load or hook. The attention area 40 is set.

In the example of FIG. 6, it is assumed that the workers O and P are working in the caution area 40. Worker N speaks to workers O and P when moving the load with the construction machine 30. On the other hand, if only the worker O replies, the worker P may not be aware of the existence of the load. In this case, the same alert as in FIG. 3 is output to the worker terminal 20 of the worker N, and the worker N calls the worker P again and returns a reply from the worker P. When it comes, the alert will be cleared. In this case, everyone in the caution area 40B is aware of the existence of the load, and the safety in the caution area 40 is guaranteed. As for the worker Q, since it is located away from the caution area 40B and it is not necessary to pay much attention to the load, it is not necessary to reply in particular.

As described above, the alert output system S of the present embodiment detects the communication between the workers at the construction site, and cannot communicate with the operator, the manager, etc. in the caution area 40 of the construction site. Determine if there are workers. The alert output system S outputs an alert when it is determined that there is a worker who cannot communicate with the operator, the manager, or the like in the caution area 40, thereby improving the safety at the construction site. secure. Hereinafter, the details of the present technology will be described.

[3. Functions realized in this embodiment]
FIG. 7 is a functional block diagram showing an example of the functions realized by the alert output system S. As shown in FIG. 7, in the alert output system S, a data storage unit 100, a position information acquisition unit 101, a detection unit 102, a determination unit 103, an output unit 104, and a reset unit 105 are realized. In the present embodiment, the case where each of these functions is realized by the server 10 will be described, but each function may be realized by another computer such as the worker terminal 20 as in the modification described later.

[Data storage]
The data storage unit 100 is mainly realized by the storage unit 12. The data storage unit 100 stores data necessary for ensuring safety at the construction site. For example, the data storage unit 100 stores the worker data DT in which various information about the worker is stored. The worker data DT can also be said to be data indicating the work status at the construction site.

FIG. 8 is a diagram showing a data storage example of the worker data DT. As shown in FIG. 8, the worker data DT stores a worker ID, a worker's name, a worker's type, a terminal ID, position information, and communication information. The worker ID is information that uniquely identifies a worker, such as an employee number. The type indicates the role of the worker, for example, a manager, an operator, or a worker to be managed by the manager. The terminal ID is information that uniquely identifies the worker terminal 20, and is, for example, an individual identification number, a telephone number, or an e-mail address of the worker terminal 20.

As the position information, the position information detected by the position detection unit 26 of the worker terminal 20 is stored. The position information is acquired by the position information acquisition unit 101, which will be described later, and the position information stored in the worker data DT is updated at any time by the position information acquisition unit 101.

Communication information is information related to communication between workers. For example, communication information indicates a combination of workers with whom communication is possible. Here, since communication information is stored for each worker, the communication information indicates other workers who are in communication with the worker. In the data storage example of FIG. 8, since the worker IDs of the workers B and D are shown in the communication information of the worker A, the communication between the worker A and the worker B and the worker A It is shown that communication between and worker D is established. The communication information is updated at any time by the processing of the detection unit 102, which will be described later.

The data stored in the data storage unit 100 is not limited to the above example. The data storage unit 100 may store arbitrary data. For example, when the construction machine 30 includes the same configuration as the position detection unit 26, the data storage unit 100 stores the position information of the construction machine 30. You may. Further, for example, the data storage unit 100 may store information indicating the area requiring attention 40 set by the determination unit 103. Further, for example, when the caution area 40 is predetermined, the data storage unit 100 may store information indicating the predetermined caution area 40. Further, for example, when the work group is predetermined, the data storage unit 100 sets the worker IDs of the manager of the work group and the worker belonging to the work group for each work group. The data to be stored may be stored.

[Location information acquisition unit]
The position information acquisition unit 101 is mainly realized by the control unit 11. The position information acquisition unit 101 acquires position information regarding the position of the worker at the construction site. The position information can be information indicating the position of the worker, or can be said to be information indicating the position of the worker terminal 20 of the worker. In the present embodiment, since the position information is detected by the position detection unit 26 of the worker terminal 20, the position information acquisition unit 101 can perform the position information of the worker holding the worker terminal 20 from each worker terminal 20. To get.

For example, the worker terminal 20 periodically acquires the position information by using the position detection unit 26, and transmits the position information to the server 10 together with the terminal ID stored in its own storage unit 22. When the position information acquisition unit 101 of the server 10 acquires the terminal ID and the position information from the worker terminal 20, it refers to the worker data DT and updates the position information of the record in which the terminal ID of the worker terminal 20 is stored. As a result, the position information of each worker stored in the worker data DT is kept up-to-date. The worker terminal 20 may transmit position information irregularly, such as when a worker performs a predetermined operation from the operation unit 24.

[Detection unit]
The detection unit 102 is mainly realized by the control unit 11. The detection unit 102 detects communication between workers. To detect communication is to detect the presence or absence of communication, to detect a combination of workers communicating with each other, or to detect the content of communication. The detection unit 102 updates the communication information stored in the worker data DT based on the communication detection result.

Various methods can be applied to the communication detection method (detection algorithm) itself, and the detection method according to the content of the communication may be used. In the present embodiment, since the conversation between the workers is described as an example of communication, the detection unit 102 detects the conversation between the workers. For example, the detection unit 102 detects conversations between workers based on the voice detected by the voice detection unit 27 of the worker terminal 20 and a known conversation detection method.

For example, when the voice detection unit 27 of the worker terminal 20 includes a plurality of microphones and the microphones are arranged at a certain distance from each other, the detection unit 102 determines the sound pressure of the voice detected by each of the plurality of microphones. Based on the ratio of, it is determined whether the worker of the worker terminal 20 (hereinafter referred to as “self”) is speaking or another worker is speaking. Since the sound pressure attenuates in approximately inverse proportion to the square of the distance from the vocalization point to the microphone, it drops sharply in the region where the vocalization point and the microphone are close to each other, and hardly changes in the region where they are far away. Therefore, if the sound pressure ratios of the plurality of microphones of the voice detection unit 27 of the worker terminal 20 are equal to or more than the threshold value, the detection unit 102 determines that the user is speaking, and if the sound pressure ratio is less than the threshold value, other It is determined that the worker is speaking.

The detection unit 102 separates the speaker of the voice detected by the voice detection unit 27, and when one's own utterance and another worker's utterance are alternately repeated, or when these are appropriately overlapped, Judge that communication is established. On the other hand, the detection unit 102 determines that communication has not been established when the utterance time is long at the same time or when no one is speaking for a long time. It should be noted that the established state of communication does not have to be reset in particular, but in the present embodiment, it is reset according to a predetermined condition, and in the reset unit 105 described later, for example, workers who determine that communication has been established can perform communication with each other. When it is determined that the communication has not been established for a certain period of time, it is determined that the communication of these workers has not been established.

Taking the cases of FIGS. 2 and 3 as an example, the detection unit 102 acquires voice from each of the worker terminals 20 of the workers A to D, and separates the utterances of its own and the utterances of other workers. When the utterances of the workers A, B, and D are alternately repeated or appropriately overlapped with each other, the detection unit 102 between the workers A, B, and D. It is determined that communication is established in, and that fact is stored in the communication information of workers A, B, and D. On the other hand, regarding the worker C, if his / her utterance is not detected, the detection unit 102 determines that communication has not been established between the workers A and C, and stores that fact in the communication information. To do.

The conversation detection method is not limited to the method using sound pressure. For example, if voiceprint authentication is used, the detection unit 102 may identify the speaker by detecting the voiceprint of the voice detected by the voice detection unit 27. The processing after the speaker is separated is as described above. Further, when chat or gesture is used as a communication tool other than conversation, the detection unit 102 may detect communication by a detection method according to the tool to be used.

For example, if chat is used, the detection unit 102 may refer to the speaker of the chat and the content of the message to detect the worker with whom communication is possible. Further, for example, when a gesture is used, the detection unit 102 analyzes the image of the camera or uses an acceleration sensor or a gyro sensor attached to the worker's body to identify the gesture and communicate. You may detect the worker who has been taken. Further, for example, when the worker presses a predetermined button of the operation unit 24 as a reaction to the voice call, the detection unit 102 may detect the communication based on the detection signal of the operation unit 24.

[Judgment unit]
The determination unit 103 is mainly realized by the control unit 11. Based on the position information and the detection result of the detection unit 102, the determination unit 103 includes a worker who cannot communicate with a specific worker related to the caution area 40 in the caution area 40 at the construction site. Determine whether or not to do so. The determination unit 103 identifies a worker in the area requiring attention 40 based on the position information, and can communicate between the worker and the specific worker based on the detection result of the detection unit 102. Judge whether or not. In the present embodiment, since the conversation is explained as a communication tool, the determination unit 103 determines whether or not there is a worker who has not participated in the conversation with the specific worker in the caution area 40. become.

The specific worker is a worker who is the target of the area 40 requiring attention, for example, an operator of the construction machine 30, a manager (foreman / leader) of a work group, a worker carrying a material requiring attention, or a worker. A worker who performs work that requires attention. In other words, the specific worker is a reference worker when setting the caution area 40. For example, when the specific worker is the operator of the construction machine 30, the specific worker can be said to be the worker who operates the construction machine 30 within the caution area 40. Further, for example, when a specific worker is an administrator, the specific worker can be said to be a worker who is responsible for supervising the worker in the caution area 40.

The determination unit 103 identifies the area requiring attention 40 at the construction site. For example, if the caution area 40 is predetermined, the determination unit 103 identifies the caution area 40 by referring to the caution area 40 stored in the data storage unit 100. Further, for example, if the caution area 40 is set according to the position of a specific worker, the determination unit 103 determines the specific worker by referring to the type stored in the worker data DT. Then, the attention-requiring area 40 is set based on the position information of the specific worker. For example, the determination unit 103 constructs a two-dimensional plane or a three-dimensional space indicating the construction site on the data storage unit 100, and sets a caution area 40 in the plane or space. A plane is represented by two coordinate axes and its position is indicated by two-dimensional coordinates. Space is represented by three coordinate axes and its position is indicated by three-dimensional coordinates.

It is assumed that the information indicating the size and shape of the caution area 40 is stored in the data storage unit 100 in advance. For example, the caution area 40 is set to include a specific worker. The shape and size of the caution area 40 may change depending on the type of worker. For example, a wide caution area 40 may be set for the operator of the construction machine 30 having a high moving speed, or a wide caution area 40 may be set for the manager having a large number of workers to be managed. Good.

When the caution area 40 is set, the determination unit 103 identifies the worker in the caution area 40 based on the position information of each worker stored in the worker data DT. The determination unit 103 determines whether or not the position indicated by the position information of each worker is included in the caution area 40. The determination unit 103 determines that the worker included in the caution area 40 is in the caution area 40, and if the worker is not included in the caution area 40, the worker is in the caution area 40. Judge not.

When a worker in the caution area 40 is specified, the determination unit 103 determines whether or not communication with the specific worker is possible based on the communication information of the worker stored in the worker data DT. Is determined. For example, if the worker indicated by the communication information includes the worker ID of the specific worker, the determination unit 103 determines that communication with the specific worker is possible, and determines that the worker of the specific worker is in communication. If the ID is not included, it is not determined that communication with a specific worker is possible.

The determination unit 103 determines whether or not all the workers (excluding the specific worker) in the caution area 40 can communicate with the specific worker. The determination unit 103 determines that there is no worker who cannot communicate with the specific worker when all the workers in the caution area 40 can communicate with the specific worker. However, if at least one worker in the area requiring attention 40 cannot communicate with the specific worker, it is determined that there is a worker who cannot communicate with the specific worker.

For example, in the example of FIGS. 2 and 5-6, the caution area 40 is the work range of the construction machine 30 at the construction site, and the specific worker is the operator of the construction machine 30. The determination unit 103 determines whether or not there is a worker who cannot communicate with the operator in the work range which is the caution area 40. The determination unit 103 sets the caution area 40 based on the position information of the worker terminal 20 of the operator of the construction machine 30.

For example, when the construction machine 30 moves and works like a shovel car or a forklift, the work range is around the construction machine 30, so the determination unit 103 needs to be careful to include the position of the operator. The area 40 is set. In other words, the determination unit 103 sets a region less than a predetermined distance from the position of the operator as a caution zone 40. Further, for example, when paying attention to a place slightly distant from the construction machine 30 such as a crane, the working range is the slightly distant place, so that the determination unit 103 is predetermined from the position of the operator. The caution area 40 is set so as to include a position separated by a predetermined distance in the direction.

The determination unit 103 identifies the worker in the caution area 40 set as described above based on the position information of each worker stored in the worker data DT, and together with the operator of the construction machine 30. Determine if communication is possible. The method of identifying the worker in the area requiring attention 40 and the method of determining whether or not communication is possible are as described above.

If the construction machine 30 has the same configuration as the position detection unit 26, the determination unit 103 may set the caution area 40 based on the position information of the construction machine 30. For example, when the excavator car or forklift corresponds to the construction machine 30, the determination unit 103 acquires the position information from the construction machine 30 and sets the caution area 40 based on the position information. Further, for example, when the crane corresponds to the construction machine 30, the determination unit 103 acquires the positions of the hook portion and the suspended load of the crane as position information, and sets the caution area 40 based on the position information.

Further, for example, in the example of FIG. 4, the caution area 40 is the work range of the work group at the construction site, and the specific worker is the manager of the work group. The work range in this case can be said to be the range in which the manager is responsible for supervision. The determination unit 103 determines whether or not there is a worker who cannot communicate with the manager in the work range. The determination unit 103 sets the caution area 40 based on the position information of the worker terminal 20 of the administrator.

For example, when the work range is around the administrator, the determination unit 103 sets the caution area 40 so as to include the position of the operator. In other words, the determination unit 103 sets a region less than a predetermined distance from the position of the operator as a caution zone 40. Further, for example, when the administrator monitors the worker from a slightly distant place, the work range is the slightly distant place, so that the determination unit 103 is separated from the manager's position by a predetermined distance in a predetermined direction. The caution area 40 is set so as to include the position. The determination unit 103 identifies the worker in the caution area 40 set as described above based on the position information of each worker stored in the worker data DT, and can communicate with the manager. Judge whether or not. The method of identifying the worker in the area requiring attention 40 and the method of determining whether or not communication is possible are as described above.

In the examples of FIGS. 2 and 4-6, the case where the caution area 40 is dynamically set has been described.
Further, the caution area 40 may be a predetermined fixed area. For example, when the area around the material storage area is designated as the area requiring attention 40, the area requiring attention 40 is the area around the material storage area defined in the construction site. Further, for example, when the place where the crane hangs or moves the load is predetermined, these places may be designated as the caution area 40. Further, for example, the area requiring attention 40 may be calculated from the construction plan of the day, or may be designated by the worker terminal 20 or the computer of the person in charge of construction.

[Output section]
The output unit 104 is mainly realized by the control unit 11. The output unit 104 outputs a predetermined alert when it is determined that there is a worker who cannot communicate with a specific worker in the caution area 40. The output unit 104 does not output an alert while it is determined that there is no worker who cannot communicate with the specific worker in the caution area 40, and it is determined that the worker exists. Output an alert accordingly. In the present embodiment, since the conversation is explained as a communication tool, the output unit 104 alerts when it is determined that there is a worker who has not participated in the conversation with the specific worker in the caution area 40. Will be output.

Further, in the present embodiment, since the alert is visually output on the screen G, for example, the output unit 104 determines that there is a worker who cannot communicate with the specific worker in the caution area 40. When this is done, an alert is output by displaying a message to that effect or changing the display mode of the worker's icon. The display mode is an appearance, such as color, brightness, shape, or size.

When the alert is visually performed, the output unit 104 may output the alert using a screen other than the screen G. For example, when the worker terminal 20 includes a light emitting unit such as an LED light, the output unit 104 may output an alert by causing the light emitting unit to emit light. Further, the alert may be performed audibly, and the output unit 104 may output a predetermined voice as an alert from a voice output unit such as a speaker or earphone. Further, the alert may be performed tactilely, and the output unit 104 may output the alert by vibrating the vibrator in the worker terminal 20.

For example, in the example of FIGS. 2 and 5-6, since the caution area 40 is the work range of the construction machine 30 and the specific worker is the operator of the construction machine 30, the output unit 104 is within the work range. Outputs an alert when it is determined that there is a worker who cannot communicate with the operator. The output unit 104 does not output an alert while it is determined that there is no worker who cannot communicate with the operator in the work range, and responds to the determination that the worker exists. Output an alert.

Further, for example, in the example of FIG. 4, since the caution area 40 is the work range of the work group and the specific worker is the manager of the work group, the output unit 104 communicates with the manager within the work range. If it is determined that there is a worker who has not been able to get the information, an alert is output. The output unit 104 does not output an alert while it is determined that there is no worker who cannot communicate with the administrator in the work range, and responds to the determination that the worker exists. Output an alert.

In the present embodiment, since an alert is output to the worker terminal 20 of a specific worker such as an operator or an administrator, the output unit 104 can communicate with the specific worker in the caution area 40. If it is determined that there are no workers, an alert is output to a specific worker. The output unit 104 may output an alert to a specific worker and may not output an alert to other workers. For example, the output unit 104 transmits information for outputting an alert (for example, image data, voice data, or a command for instructing vibration of a vibrator) to a specific worker terminal 20.

It should be noted that the alert output target may be another worker. For example, the output unit 104 may output an alert to the worker when it is determined that there is a worker who cannot communicate with the specific worker in the caution area 40. In addition, for example, the output unit 104 may output an alert to all the workers in the caution area 40, or may output an alert to an unspecified number of workers.

Further, for example, the output unit 104 outputs an alert to a specific worker together with information indicating at least one of the position and the name of the worker existing in the area requiring attention 40 and not communicating with the specific worker. You may. If the alert is output visually, the information may be an icon indicating the position of the worker, or text or an image indicating the name of the worker. It is assumed that these pieces of information are stored in advance in the data storage unit 100. If the alert is output audibly, a voice indicating the position and name of the worker may be output.

Further, for example, the output unit 104 cannot communicate with a specific worker in the caution area 40 because there is a worker who cannot communicate with the specific worker in the caution area 40. Stops the output of alerts when there are no workers. After it is determined that there is a worker who cannot communicate with the specific worker in the caution area 40, the output unit 104 does not communicate with the specific worker in the caution area 40. Outputs an alert until it is determined that no member exists.

The condition for stopping the alert is not limited to the above example, and may be stopped under any condition. For example, the alert may be automatically stopped after being output for a certain period of time, or may be stopped when the worker to whom the alert is output performs a predetermined operation.

[Reset section]
The reset unit 105 is mainly realized by the control unit 11. The reset unit 105 resets the established state of communication between workers based on a predetermined condition. The predetermined condition may be a predetermined condition, for example, a certain time has passed since the establishment of communication was confirmed, and the distance between the workers (or the operator or the manager) in which communication was established. The time when the distance to a specific worker such as, etc.) exceeds the threshold value, the operator, the manager, etc. perform a predetermined operation on the worker terminal 20, or the dangerous work is performed is determined. In some cases, the time is approaching.

Resetting the established state of communication means changing from a state in which workers are communicating with each other to a state in which they are not able to communicate (changing from a state in which communication is established to a state in which communication is not established). In the present embodiment, since the established state of communication is shown in the communication information, the reset unit 105 sets the communication information so that the workers cannot communicate with each other.

For example, the reset unit 105 determines whether or not the above-mentioned fixed time has elapsed, or determines whether or not a predetermined time is approaching, based on the current date and time acquired based on a real-time clock, GPS signal, or the like. To do. The fixed time may be specified by the operator, the administrator, or the like, or may not be edited in particular. Further, for example, the reset unit 105 determines whether or not the distance between the workers is equal to or greater than the threshold value based on the position information of the workers. Further, for example, the reset unit 105 determines whether or not an operation for resetting has been performed at the worker terminal 20 such as an operator or an administrator.

If it is not determined that the predetermined condition described above is satisfied, the reset unit 105 does not reset the established state of communication between the workers, and if it is determined that the predetermined condition described above is satisfied. In addition, the established state of communication between workers is reset. The detection unit 102 can detect the communication between the workers again after the reset is performed by the reset unit 105. When communication between workers is detected after the reset, the detection unit 102 updates the communication information by the above-mentioned process.

[4. Process executed in this embodiment]
FIG. 9 is a flow chart showing the processing executed by the alert output system S. The process shown in FIG. 9 is executed by the control unit 11 operating according to the program stored in the storage unit 12. Further, the process described below is an example of the process executed by the functional block shown in FIG. 7. It is assumed that the server 10 and each worker terminal 20 are connected in advance so as to be able to communicate with each other.

As shown in FIG. 9, first, the control unit 11 receives the position information detected by the position detection unit 26 and the voice detected by the voice detection unit 27 from the worker terminal 20 of each worker at the construction site. , Is acquired (S1). The worker terminal 20 generates position information based on the detection signal of the position detection unit 26, and generates voice data based on the detection signal of the voice detection unit 27. The worker terminal 20 transmits position information and voice data together with the terminal ID stored in the storage unit 22. Here, it is assumed that the server 10 specifies the worker who uses the worker terminal 20 in advance, but when the worker decides to use any worker terminal 20, the work The worker ID may be input to the worker and the worker ID may be received from the worker terminal 20.

The control unit 11 stores the position information received in S1 in the worker data DT (S2). In S2, the control unit 11 refers to the worker data DT, identifies a record in which the received terminal ID is stored together with the position information, and stores the position information in the record.

The control unit 11 updates the communication information of the worker data DT based on the voice received in S1 (S3). In S3, the control unit 11 identifies a combination of workers with whom communication is possible based on the conversation detection method described above, and stores the worker ID of the worker in the communication information. In S3, as described above, the control unit 11 may reset the established state of communication between workers based on a predetermined condition. For example, the control unit 11 deletes the worker ID of the worker from the communication information for the combination of workers for which a certain time has passed since the last confirmation of the establishment of communication, and the communication between the workers is established. You may return to the state where it has not been done.

The control unit 11 sets the caution area 40 based on the position information of each of the operator and the manager stored in the worker data DT (S4). In S4, the control unit 11 refers to the worker data DT and sets the caution area 40 based on the position information of the worker whose type is the operator or the manager. For example, the storage unit 12 stores the map data or the design drawing data of the construction site in advance, and the control unit 11 sets the caution area 40 on the construction site indicated by the map data or the design drawing data. When the caution area 40 is predetermined in the storage unit 12, the caution area 40 is read out and set.

The control unit 11 identifies a worker in the area requiring attention 40 set in S4 (S5). In S5, the control unit 11 acquires the position information of each worker stored in the worker data DT, and identifies the worker whose position indicated by the position information is included in the caution area 40.

The control unit 11 determines whether or not it is before the end time of the work at the construction site (S6). In S6, the control unit 11 acquires the current date and time by using a real-time clock or the like, and determines whether or not the end time stored in advance in the storage unit 12 has arrived.

When it is determined that the time is earlier than the end time (S6; Y), the control unit 11 communicates with the operator or the manager related to the caution area 40 in the caution area 40 set in S4. It is determined whether or not there is a worker who has not been able to remove the time (S7). In S7, the control unit 11 refers to the communication information of the worker in the caution area 40 for each caution area 40, and the worker ID of the operator or the manager related to the caution area 40. Determines if is stored.

When it is determined that there is a worker who cannot communicate (S7; Y), the control unit 11 outputs an alert to the worker terminal 20 of the operator or the manager (S8). In S8, the control unit 11 sends a message or an instruction to change the display mode of the worker's icon to the worker terminal 20 of the operator or the manager. It is assumed that the application has been started in advance on the operator terminal 20 of the operator or the administrator, and the screen G is displayed. The application periodically refers to the worker data DT to acquire the position information of the worker, updates the position of the worker icon, and the like.

On the other hand, if it is not determined that it is before the end time (S6; N), or if it is not determined that there is a worker who cannot communicate (S7; N), the control unit 11 stops the output of the alert. (S9). In S9, the control unit 11 sends an instruction to stop displaying a message or an instruction to restore the display mode of the worker's icon to the operator terminal 20 of the operator or the manager. To do. If there is no worker terminal 20 to which the alert is output, the process of S9 is not executed.

The control unit 11 determines whether or not the end time of the work at the construction site has arrived (S10). The process of S10 is the same as the process of S6. If it is not determined that the end time has arrived (S10; N), the process returns to S1. When it is determined that the end time has arrived (S10; Y), this process ends.

According to the alert output system S, the communication between the workers at the construction site is detected, and it is determined that there is a worker who cannot communicate with the operator, the manager, etc. in the caution area 40 at the construction site. In that case, by outputting an alert, it is possible to ensure safety at the construction site. Therefore, it is possible to prevent the occurrence of accidents caused by people such as lack of attention and excessive concentration. Further, if an extra alert is output, it interferes with the work of the worker, but when communication is established, the alert is not output, so that it can be prevented from interfering with the work of the worker.

Further, when it is determined that there is a worker who cannot communicate with the operator in the caution area 40 which is the work range of the construction machine 30, an alert is output to surely notice the existence of the construction machine 30. Therefore, for example, accidents such as contact between the construction machine 30 and the worker or contact between the suspended load and the worker can be prevented, and safety at the construction site can be ensured.

In addition, when it is determined that there is a worker who cannot communicate with the administrator in the caution area 40, which is the work range of the work group managed by the administrator, an alert is output to warn the administrator. Since it can be surely noticed, it is possible to ensure the safety when the work is divided into work groups.

In addition, by outputting an alert to a worker who is in the area requiring attention and cannot communicate with a specific worker, the worker who cannot communicate and may be at risk is notified. You can definitely notice it.

In addition, by outputting an alert to a specific worker, it is possible to make the specific worker talk to the specific worker and to make sure that the worker who cannot communicate is noticed.

In addition, when it is determined that there is a worker who cannot communicate with a specific worker in the area 40 requiring attention at the construction site, an alert is output together with information indicating at least one of the position and name of the worker. Therefore, it becomes easy to identify which worker is not communicating. As a result, it becomes easier to talk to the workers, and the safety at the construction site can be effectively ensured.

In addition, when a worker who cannot communicate with a specific worker exists in the caution area 40 and changes from a state where the worker does not exist, the alert output is stopped so that the alert is output forever. It prevents the work from getting in the way and makes the work easier.

In addition, by resetting the established state of communication between workers based on a predetermined condition, it is possible to thoroughly speak to the workers. For example, by resetting every time a certain period of time elapses, it is possible to make the worker's voice thoroughly talk at regular intervals. Further, for example, by resetting when the distance between the workers who have established communication exceeds the threshold value, it is possible to thoroughly speak to the workers who have once left the place and returned. Further, for example, by resetting when the pilot or the manager performs a predetermined operation, it is possible to thoroughly call out when the pilot or the manager feels necessary. Further, for example, by resetting when a predetermined time is approaching, it is possible to make a thorough call when the time for dangerous work is approaching.

In addition, as communication, it is possible to effectively ensure safety at the construction site by having conversations with higher certainty than gestures.

[5. Modification example]
The present invention is not limited to the embodiments described above. It can be changed as appropriate without departing from the spirit of the present invention.

For example, in the embodiment, when it is determined that communication is established when direct communication is established with the operator or manager, the case where communication is determined is described, but indirect communication with the operator or manager is described. If it is established, it may be determined that communication is possible. For example, in the example of FIG. 2, worker A is in direct communication with workers B and D, and worker C does not respond to the voice of worker A, but worker B. Or, when having a conversation with D, the worker C may notice the existence of the construction machine 30 through the worker B or D. In this way, the determination unit 103 may determine that communication is possible as long as communication with a specific worker is established via another worker.

Further, for example, a plurality of communication tools may be combined. For example, communication may be made by the worker raising his / her hand in response to the voice of the operator. Further, for example, communication may be taken by the worker speaking in response to the input of the chat message by the operator. Further, for example, communication may be performed by wireless communication using a microphone, headphones, or the like, or by telephone.

Further, for example, in the embodiment, the case where each function is realized by the server 10 has been described, but when a plurality of computers are included in the alert output system S, the functions may be shared by each computer. For example, the data storage unit 100 may be realized by a database server different from the server 10. Further, for example, each function may be realized by the worker terminal 20. Further, for example, the functions may be shared between the server 10 and the worker terminal 20. Further, for example, when a plurality of servers 10 exist, the functions may be shared by coordinating the plurality of servers 10.

S Alert output system, 10 servers, 20 worker terminals, 11,21 control unit, 12,22 storage unit, 13,23 communication unit, 24 operation unit, 25 display unit, 26 position detection unit, 27 voice detection unit, 30 Construction machinery, 40 areas requiring attention, 100 data storage unit, 101 position information acquisition unit, 102 detection unit, 103 judgment unit, 104 output unit, 105 reset unit, G screen, DT worker data.

Claims (11)

Location information acquisition means for acquiring location information regarding the location of workers at the construction site,
A detection means for detecting communication between workers and
Based on the position information and the detection result of the detection means, whether or not there is a worker who cannot communicate with the specific worker related to the caution area in the caution area of the construction site. Judgment means to judge
An output means for outputting a predetermined alert when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention.
An alert output system characterized by including. The area requiring attention is the work range of the construction machine at the construction site.
The specific worker is the operator of the construction machine and
The determination means determines whether or not there is a worker who cannot communicate with the operator in the work range.
The output means outputs the alert when it is determined that there is a worker who cannot communicate with the operator in the work range.
The alert output system according to claim 1. The area requiring attention is the work range of the work group at the construction site.
The specific worker is the manager of the work group and
The determination means determines whether or not there is a worker who cannot communicate with the administrator in the work range.
The output means outputs the alert when it is determined that there is a worker who cannot communicate with the administrator in the work range.
The alert output system according to claim 1 or 2. The output means outputs the alert to the worker when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention.
The alert output system according to any one of claims 1 to 3. The output means outputs the alert to the specific worker when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention.
The alert output system according to any one of claims 1 to 4. The output means outputs the alert to the specific worker together with information indicating at least one of the position and name of the worker who is not communicating with the specific worker in the area requiring attention. To do
The alert output system according to any one of claims 1 to 5. The output means is a work in which a worker who cannot communicate with the specific worker exists in the area requiring attention, and a worker who cannot communicate with the specific worker exists in the area requiring attention. When the member does not exist, the output of the alert is stopped.
The alert output system according to any one of claims 1 to 6, characterized in that. The alert output system further includes a reset means for resetting the established state of communication between the workers based on a predetermined condition.
The detection means can detect the communication between the workers again after the reset by the reset means is performed.
The alert output system according to any one of claims 1 to 7. The communication is a conversation between the workers.
The detection means detects conversations between the workers and
The determination means determines whether or not there is a worker who has not participated in the conversation with the specific worker in the area requiring attention.
The output means outputs the alert when it is determined that there is a worker who has not participated in the conversation with the specific worker in the area requiring attention.
The alert output system according to any one of claims 1 to 8. The location information acquisition step to acquire the location information about the position of the worker at the construction site, and
A detection step for detecting communication between workers and
Based on the position information and the detection result of the detection step, whether or not there is a worker who cannot communicate with the specific worker related to the caution area in the caution area of the construction site. Judgment step to judge
An output step that outputs a predetermined alert when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention.
An alert output method characterized by including. Location information acquisition means for acquiring location information regarding the location of workers at the construction site,
A detection means for detecting communication between workers,
Based on the position information and the detection result of the detection means, whether or not there is a worker who cannot communicate with the specific worker related to the caution area in the caution area of the construction site. Judgment means for determining
An output means that outputs a predetermined alert when it is determined that there is a worker who cannot communicate with the specific worker in the area requiring attention.
A program to make your computer work as.

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