JP2021022191A - On-site information system, terminal device and on-site information providing system - Google Patents

Abstract

To provide an on-site inside information system which easily performs an exact communication even in an environment where a voice conversation is difficult.SOLUTION: The present invention relates to an on-site information system comprising a plurality of terminal devices and an on-site information server. The on-site information server includes: a storage unit which stores on-site information that is information relating to the on-site; and a transmission unit which transmits the on-site information to a terminal device subjected to transmission. The terminal device includes: a reception unit which receives the on-site information transmitted from the on-site information server; a bone conducting vibration unit which is worn by an on-site worker and propagates vibration through bone conduction; and a drive unit which drives the bone conducting vibration unit in response to a signal based on the received on-site information.SELECTED DRAWING: Figure 3

Description

The present invention relates to an on-site information system, a terminal device, and an on-site information providing method.

At construction sites, various noises caused by heavy machinery, dump trucks, construction equipment, etc. are generated, and it is often difficult to have good voice conversations.
In particular, people involved in underground work such as tunnels and underground excavations wear dust masks when working underground, and it is even more difficult for people involved in underground work to have good voice conversations. Therefore, communication may be performed using hands or body language. Further, as a communication device for communicating in the mine, for example, there is a communication device described in Patent Document 1.

Japanese Unexamined Patent Publication No. 51-131208

However, even if you try to communicate using your hands or body language in situations where voice conversation is difficult, human error is likely to occur due to misunderstandings or assumptions, and if an error occurs in a conversation related to safety, a serious accident will occur. Is likely to be.
In addition, if it is necessary to take measures against changes in the environment due to an increase in underground temperature or dust concentration or to take an early response in the event of an emergency, it will take time to inform all workers and it will not be possible to take an early response.

The present invention has been made in view of such circumstances, and an object of the present invention is an on-site information system, a terminal device, and an on-site information providing method that facilitate accurate communication even in an environment where voice conversation is difficult. Is to provide.

In order to solve the above-mentioned problems, one aspect of the present invention is an on-site information system having a plurality of terminal devices and an on-site information server, and the on-site information server is information on the site. It has a storage unit that stores internal information and a transmission unit that transmits the on-site information to a terminal device to be transmitted, and the terminal device receives on-site information transmitted from the on-site information server. It has a receiving unit, a bone conduction vibration unit that is attached to an operator and propagates vibration by bone conduction, and a drive unit that drives the bone conduction vibration unit in response to a signal based on the received on-site information.

Further, one aspect of the present invention is transmission from an on-site information server having a storage unit that stores on-site information that is information about the site and a transmission unit that transmits the on-site information to a terminal device to be transmitted. A receiving unit that receives on-site information to be received, a bone conduction vibration unit that is attached to an operator and propagates vibration by bone conduction, and a bone conduction vibration unit that is driven in response to a signal based on the received on-site information. It has a drive unit to be operated.

Further, one aspect of the present invention is a method of providing on-site information in an on-site information system having a plurality of terminal devices and an on-site information server, and a transmission unit of the on-site information server is a terminal device to be transmitted. The site information, which is information about the site, is transmitted, the receiving unit of the terminal device receives the site information transmitted from the site information server, and the bone conduction vibration unit of the terminal device receives the site information. In the field, the vibration is propagated by bone conduction to the part worn by the worker, and the drive unit of the terminal device drives the bone conduction vibration unit in response to the received signal based on the site information. This is an information provision method.

Further, one aspect of the present invention is an in-site information providing method in a terminal device, in which a receiving unit stores in-site information which is information about the site, and a storage unit for storing in-site information and a terminal device to be transmitted in the site. The on-site information transmitted from the on-site information server having the transmission unit for transmitting information is received, the bone conduction vibration unit is attached to the worker, the vibration is propagated by the bone conduction, and the drive unit is described above. This is an information providing method for driving the bone conduction vibration unit in response to a signal based on the received on-site information.

As described above, according to the present invention, it is possible to facilitate accurate communication even in an environment where voice conversation is difficult.

It is a schematic block diagram which shows the structure of the underground information system 1 by one Embodiment of this invention. It is a schematic functional block diagram explaining the function of the underground information system 1. It is a functional block diagram explaining the function of the terminal apparatus 20. It is a schematic external view which shows an example of the appearance when the terminal apparatus 20 is a headset. It is a sequence diagram explaining the operation of the underground information system 1. It is a sequence diagram explaining the case of transmitting underground information from one terminal device 20 to another terminal device 20.

Hereinafter, the on-site information system according to the embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram showing a configuration of an underground information system 1 according to an embodiment of the present invention. In this embodiment, the case where the site is underground is taken as an example, and the case where the site information system is configured as the underground information system will be described, but the site does not have to be underground.
The underground information system 1 includes an underground information server 10, a terminal device 20a, a terminal device 20b (hereinafter, simply referred to as a terminal device 20 when the terminal device is not particularly identified), a measurement data collecting device 30, and a sensor 40. The camera 50 and the network 60 are provided, and various information related to the underground of the tunnel 70 is transmitted and received.

The tunnel 70 is a tunnel at a stage where construction such as excavation and concrete placement is being carried out, and the construction proceeds from the wellhead 71 toward the face 72. In this embodiment, the case where the tunnel 70 is subjected to work such as excavation will be described, but it may be the case where repair work or inspection is performed after the tunnel 70 is completed. The tunnel 70 may be a mountain tunnel, a subway tunnel, a shield tunnel, or the like.
A duct 73 is provided in the tunnel 70. The duct 73 is arranged so as to extend from the wellhead 71 of the tunnel 70 to the face 72 at a substantially central position in the upper side of the tunnel 70 in the transverse direction. A blower 74 is provided at the end of the duct 73 on the wellhead 71 side. The blower 74 supplies fresh air (fresh air) outside the tunnel 70 into the tunnel 70 through the duct 73.
Further, wireless LAN routers are installed at predetermined intervals between the wellhead 71 of the tunnel 70 and the face 72. The wireless LAN router communicates with the terminal device 20 by a communication method such as Wi-Fi (registered trademark), 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), and ad hoc. It communicates with the underground information server 10 via the network 60.

The underground information server 10 communicates with the terminal device 20 (terminal device 20a, terminal device 20b), the measurement data collecting device 30, and the camera 50 via the network 60, and transmits various information to the terminal device 20. The underground information server 10 may be a single server device or a cloud server.
The terminal device 20 is a mobile terminal device carried by an underground worker, and wirelessly communicates with the underground information server 10. Here, a wireless LAN router is installed in the tunnel 70 at a predetermined interval between the wellhead 71 and the face 72, and the terminal device 20 is wirelessly connected to the wireless LAN router even in the tunnel 70. By doing so, it is possible to communicate with the underground information server 10 via the network 60. Here, two terminal devices 20a and a terminal device 20b are shown, but the number of terminal devices 20 may be three or more.
The measurement data collecting device 30 receives the measurement results transmitted from each sensor 40, and transmits the received measurement results to the underground information server 10.

The sensor 40 is a sensor that measures the environment inside the tunnel, and is installed at a predetermined interval between the wellhead 71 and the face 72 of the tunnel 70. Examples of the type of the sensor 40 include a dust sensor, a temperature sensor, a gas sensor, a wind speed sensor, and the like. When a dust sensor is used as the sensor 40, the dust concentration, the amount of dust per unit time, and the like can be measured as the environment in the mine. When a temperature sensor is used as the sensor 40, the underground temperature or the like can be measured as the underground environment. When a humidity sensor is used as the sensor 40, the underground humidity and the like can be measured as the underground environment. When a gas sensor is used as the sensor 40, the concentration of a predetermined gas (CO, CO ₂ , O ₂ , NOx, methane gas, etc.) can be measured as the environment in the mine. When a wind speed sensor is used as the sensor 40, the wind speed can be measured as the environment inside the mine. When installing the sensor 40, one or a plurality of types of sensors may be installed at one installation location.
Further, when the sensor 40 is installed, the sensor 40 of the type corresponding to the item of the environment to be measured may be installed at the position to be measured. For example, since dust is likely to be generated around the face, a dust sensor is installed, and a dust sensor, a gas sensor, a wind speed sensor, a temperature sensor, etc. are installed in an area where many workers are working (for example, behind the face). You may do so. Further, a temperature sensor, a dust sensor and the like may be provided in the vicinity of the wellhead.
Further, as excavation is performed, the distance of the face 72 from the wellhead 71 becomes longer. A new sensor 40 may be provided at the location extended by excavation.
Further, the sensor 40 may be a sensor that measures the amount of power consumption. The target for measuring the power consumption may be a lighting device, a sprayer, a drill jumbo, a spray plant, a blower 74, or the like installed in the tunnel 70.

The camera 50 images the periphery including the wellhead 71. By using the image pickup result of the camera 50, it is possible to confirm the workers and vehicles 80 entering the tunnel 70 and the workers and vehicles 80 exiting the tunnel 70.
The network 60 is, for example, the Internet, a public network, or the like.

FIG. 2 is a schematic functional block diagram illustrating the functions of the underground information system 1.
The underground information server 10, the terminal device 20 (terminal device 20a, terminal device 20b), the measurement data collecting device 30, the sensor 40, and the camera 50 are communicably connected via the network 60.
Each of the plurality of sensors 40 (here, the two sensors 40a and 40b) makes measurements at regular time intervals, and transmits the measurement results to the measurement data collection device 30.
The measurement data collecting device 30 receives the measurement result from each sensor 40 and transmits it to the underground information server 10.
The camera 50 transmits the imaging data to the underground information server 10.

The underground information server 10 includes a communication unit 101, a storage unit 102, a determination unit 103, a transmission control unit 104, a call control unit 105, and a control unit 106.
The communication unit 101 has a function of communicating with a device connected to the network 60, for example, a function of receiving a measurement result transmitted from the measurement data collection device 30 (detected by a sensor that measures the underground environment). It has a function to acquire the measurement result), a function to receive the imaging data transmitted from the camera 50, a function to receive emergency information indicating the occurrence of an emergency, a function to transmit underground information to the terminal device to be transmitted, and the like. ..

The storage unit 102 stores various information such as underground information which is information about the underground.
The underground information may be information about the underground, for example, measurement results received from the measurement data collecting device 30, notification information to be transmitted to the terminal device 20, and the like.
The storage unit 102 is a storage medium, for example, an HDD (Hard Disk Drive), a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), a RAM (Random Access memory, Memory), or a RAM (Random Access read / write Memory). It is composed of any combination of storage media.
For the storage unit 102, for example, a non-volatile memory can be used.

The determination unit 103 determines whether or not the measurement result included in the underground information exceeds the reference value. The reference value may be stored in the storage unit 102 in advance and used. As the reference value, a value corresponding to the type of the sensor 40 is stored. For example, when the sensor 40 is a dust sensor, the reference value of dust is used as the reference value. When the sensor 40 is a temperature sensor, a temperature reference value is used as the reference value.

Based on the determination result of the determination unit 103, the transmission control unit 104 transmits underground information (notification information) according to the determination result by the communication unit 101 when the determination result requires notification. For example, the transmission control unit 104 tells the terminal device 20 that if the measurement result exceeds the reference value based on the determination result of the determination unit 103, the underground information (notification information) indicates that the reference value is exceeded. ) Is transmitted by the communication unit 101, or when the measurement result is less than the reference value, underground information (notification information) indicating that the measurement result is less than the reference value is transmitted to the terminal device 20.

Further, the transmission control unit 104 can also transmit emergency information as underground information from the communication unit 101. The emergency information is transmitted from the communication unit 101 to the other terminal device 20 when an instruction to transmit the emergency information is input from one of the plurality of terminal devices 20. .. Any terminal device 20 may input the instruction for transmitting emergency information. For example, the administrator may input the instruction from the terminal device 20 (for example, a tablet terminal or the like) used by the administrator who manages the work in the tunnel 70. May be entered. The manager can use the terminal device 20 in the field office installed in the tunnel 70 or outside the tunnel 70.

The call control unit 105 is different from the first terminal device in that the voice data acquisition function for acquiring the voice signal transmitted from the first terminal device of the terminal device 20 and the voice signal as underground information (notification information) are used. It has a function of transmitting by the communication unit 101 to a second terminal device which is a terminal device. As a result, a voice call can be made between the plurality of terminal devices 20.

FIG. 3 is a functional block diagram illustrating the functions of the terminal device 20. Any type of terminal device 20 may be used, but in this figure, a case where the terminal device 20 is a headset utilizing bone conduction will be described.
The terminal device 20 has a communication unit 201, a storage unit 202, a bone conduction detection unit 203, a bone conduction vibration unit 204, a drive unit 205, and a control unit 206, and is attached to an underground worker.
The communication unit 201 has a function of receiving underground information transmitted from the underground information server 10 and a function of transmitting an audio signal corresponding to the detected vibration of the vocal cords to the underground information server.
The storage unit 202 stores various information.
The storage unit 202 is a storage medium, for example, an HDD (Hard Disk Drive), a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), a RAM (Random Access memory, Memory), or a RAM (Random Access read / write Memory). It is composed of any combination of storage media.
For the storage unit 202, for example, a non-volatile memory can be used.

The bone conduction detection unit 203 detects the vibration of the vocal cords of the worn underground worker on the surface of the living body of the underground worker. Specifically, the bone conduction detection unit 203 detects, for example, the content of an utterance by an underground worker using bone conduction.

The bone conduction vibration unit 204 vibrates when driven by the drive unit 205. Further, the bone conduction vibration unit 204 propagates the vibration by bone conduction by giving vibration to the portion mounted on the underground worker.

The drive unit 205 drives the bone conduction vibration unit 204 in response to a signal based on the received underground information. The drive unit 205 drives the bone conduction vibration unit 204 in response to a voice signal indicating that the reference value is exceeded, based on the underground information. The drive unit 205 drives the bone conduction vibration unit 204 in response to an audio signal corresponding to emergency information based on underground information. The drive unit 205 drives the bone conduction vibration unit 204 in response to an audio signal based on the underground information. To drive.
The control unit 206 controls each unit of the terminal device 20.

FIG. 4 is a schematic external view showing an example of the appearance when the terminal device 20 is a headset worn on the head.
The terminal device 20 has a main body 250 and a bone conduction detection unit 203 connected to the main body 250 via a signal line 260.

In the main body 250, the headband 251 wraps around the back of the head of the underground worker, and the bone conduction vibration portion 204a attached to one end side of the headband 251 is attached to the skull near the ear on the right side of the underground worker. The bone conduction vibration portion 204b attached to the other end side of the shaft is attached so as to come into contact with the skull near the ear on the left side of the underground worker. Here, two bone conduction vibration units 204 shown in FIG. 3 are provided, such as the bone conduction vibration unit 204a and the bone conduction vibration unit 204b.
A battery accommodating portion 252 and a volume key 253 are provided on the right arm of the headband 251. For example, a rechargeable battery as a power source is housed in the battery housing section 252, and power is supplied to each section of the terminal device 20. The volume key 253 is an operator that can be adjusted to increase or decrease the volume of the sound heard from the bone conduction vibration unit 204.

A housing portion 254 is provided on the left arm of the headband 251. The accommodating unit 254 accommodates a communication unit 201, a storage unit 202, a drive unit 205, a control unit 206, and the like.
The attachment connection terminal 255 is a terminal for electrically connecting to an external device.

The bone conduction detection unit 203 is connected to the main body 250 of the terminal device 20 by a signal line 260, and is attached to the jaw or neck of an underground worker by a band, a belt, or the like.

In this way, the terminal device 20 is attached so that the main body 250 sandwiches the head of the underground worker by the headband 251 and the bone conduction detection unit 203 is attached to the jaw or neck of the underground worker by a band or a belt or the like. Since the portion is attached to the belt, the terminal device 20 can be used without falling off even if the underground worker performs various operations.

In addition, the terminal device 20 can detect voice and transmit sound to underground workers by utilizing bone conduction. Since the bone conduction method is used here, it is difficult to collect external noise (excavation noise, driving noise of heavy machinery, etc.), while the voice of underground workers is easy to detect, so it is possible to suppress ambient noise while suppressing ambient noise. The voice of the worker can be detected. In addition, underground workers may wear a dust mask to perform their work, but even if the mouth is covered by wearing such a dust mask, noise from the surroundings can be heard. It is possible to detect voice by using bone conduction while suppressing it, and it is possible to detect voice clearly and have a conversation easily.

FIG. 5 is a sequence diagram illustrating the operation of the underground information system 1.
The sensor 40 measures the underground environment (step S101) and transmits the measurement result to the measurement data collecting device 30 (step S102). Here, since a plurality of sensors 40 are installed between the vicinity of the end on the wellhead 71 side and the vicinity of the face 72 inside the tunnel 70, each sensor 40 measures and measures when a predetermined measurement timing arrives. The result is transmitted to the measurement data collecting device 30.

The measurement data collecting device 30 receives the measurement results transmitted from each sensor 40 (step S201), temporarily stores the measurement results, and then transmits the stored measurement results when a predetermined transmission timing arrives (step S202). This transmission is performed every time a predetermined transmission timing arrives. The predetermined transmission timing may be arbitrarily determined, may be every few seconds, or may be every few minutes.

When the underground information server 10 receives the measurement result transmitted from the measurement data collecting device 30 (step S301), the underground information server 10 stores the measurement result in the storage unit 102 and then determines whether or not the measurement result exceeds the reference value (step S302). ). In this determination, a reference value corresponding to the type of the sensor 40 is read from the storage unit 102, and whether or not the measurement result exceeds the reference value (or whether or not the measurement result is less than the reference value) is determined by the determination unit 103. Judged by. For example, when the measurement result is obtained from the sensor 40 which is the temperature sensor, the determination unit 103 determines whether or not the temperature which is the measurement result exceeds the temperature which is the reference value. If it exceeds, the control unit 106 generates underground information indicating that the temperature exceeds the reference value. The underground information provided here is, for example, voice data such as a message such as "The temperature in the underground is XX ° C. The standard value has been exceeded. Please be careful." For such a message, the determination result and the data in which the message is associated are stored in the storage unit 102 in advance, and the message corresponding to the determination result of the determination unit 103 is read from the storage unit 102 to read the control unit. The generation process performed by 106 may be realized.
The transmission control unit 104 transmits the generated premises information to each terminal device 20 (step S303). On the other hand, if it does not exceed, the control unit 106 does not generate underground information, but makes a determination using the reference value for the detection result from the other sensor 40, and when the determination for each measurement result is completed. , Receives the measurement result from the next sensor 40.

When the terminal device 20 receives the premises information from the underground information server 10 (step S401), the terminal device 20 drives the bone conduction vibration unit 204 in response to the signal based on the received underground information (step S402). As a result, the vibration corresponding to the underground information is transmitted to the underground worker by bone conduction. As a result, the underground worker can hear the voice data "The temperature in the underground has exceeded the standard value. Please be careful" included in the underground information. Based on this message, the underground worker can check whether the air conditioner (cooling, etc.) is operating normally, and in some cases, take measures such as evacuating to a safe place. Further, since the message can be heard by the bone conduction vibration unit 204, the message can be heard in a state of being less affected by ambient noise.

The storage unit 202 of the terminal device 20 stores the message ID that identifies the message as the underground information and the voice data in association with each other, receives the message ID as the underground information from the underground information server 10, and receives the message ID as the underground information. 20 may read the voice data corresponding to this message ID from the storage unit 202 and drive the bone conduction vibration unit 204 in response to the voice signal represented by this voice message.
Further, the voice message may be voice data obtained by converting the voice spoken by a person into data, or may be voice data obtained by synthetic voice.
Further, since the underground information transmitted to the underground worker may be expressed by sound, it may be a voice, a ringtone indicating that a message has been received, a warning sound, or the like. ..

According to this embodiment, since the underground information is transmitted to the terminal device 20 based on the measurement result of the sensor 40, it is possible to collect data due to safety, and some kind of publicity is known in the environment inside the tunnel 70. It is possible to detect that the required state has been reached and provide various information to the tunnel operator without human intervention.

Further, in this embodiment, the underground information is generated by using the measurement result of the sensor 40, but the underground information may be generated based on the image taken by the camera 50. For example, an underground worker entering the tunnel 70 may be detected from an image taken by the camera 50, or an underground worker coming out of the tunnel 70 may be detected to generate underground information according to the detection result. Good. For example, by performing an underground worker based on the feature amount of the image from the image taken by the camera 50, it is possible to identify who the underground worker is in the tunnel 70 (inside the tunnel based on the face image and the movement of the body). An underground worker can be identified by identifying the worker or recognizing characters from the name written on the helmet, etc.), and the underground worker is notified by underground information that the underground worker has entered the tunnel. You may be notified by underground information that you have gone out of 70.

FIG. 6 is a sequence diagram illustrating a case where underground information is transmitted from one terminal device 20 to another terminal device 20.
In this figure, the underground information server 10 detects the terminal device 20 connected to each wireless LAN router (step S311). The underground information server 10 stores in the storage unit 102 information on which wireless LAN router among the plurality of wireless LAN routers is installed at which position in the tunnel 70. For example, the storage unit 102 stores the distance of the tunnel 70 from the wellhead 71 and the identification information of the wireless LAN router in association with each other. The terminal device 20 confirms the connection by periodically communicating with the wireless LAN router at a position where it can communicate with the own terminal device 20. At that time, by detecting the terminal identification information (for example, MAC address) of the terminal device 20 notified from the terminal device 20 to the wireless LAN router, which terminal device 20 is connected to which wireless LAN router. It is possible to specify where in the tunnel 70 the terminal device 20 is located.
Further, as the tunnel 70 is excavated, the distance of the face 72 from the wellhead 71 becomes longer. Therefore, when the excavation progresses to some extent, a new wireless LAN router is installed in the vicinity of the face 72, and the wireless LAN router is installed. The identification information and the distance from the face 72 are stored in the storage unit 102.

Among the plurality of terminal devices 20, the tablet terminal carried by the administrator of the underground worker receives an input for designating a communication partner input by the administrator via a touch panel or the like (step S411). For example, it may be information that individually identifies an underground worker as a transmission destination, or may be information that specifies a plurality of terminal devices as a transmission destination by a group. When specifying as a group, a group according to the organization or affiliation may be specified, or a "lining work area" where lining work is performed "near the face" or between the wellhead 71 and the face 72. , Etc., the area where the construction is being carried out may be specified.
Further, the terminal device 20 which is a tablet terminal generates underground information in response to an instruction input via the touch panel (step S412). The information input here is arbitrary, but for example, a work instruction for an underground worker can be input. Further, the terminal device 20 can acquire the measurement result measured by each sensor 40 from the underground information server 10 and display it on the screen, and the administrator can refer to the measurement result and display the underground environment. Instructions according to (for example, instructions indicating that water should be taken during breaks), information on the underground environment (for example, a message indicating that the temperature inside the tunnel 70 is slightly higher), and related to the underground environment. It is also possible to input information for enhancing safety (for example, a message informing that the vehicle has entered the tunnel through the tunnel entrance 71). In addition, the terminal device 20 can also input a message (instruction for moving to a safe area, etc.) notifying the occurrence of an emergency situation in response to an instruction from the administrator.
When the transmission instruction is input after the instruction to generate the underground information is input, the terminal device 20 transmits the information indicating the communication partner and the underground information to the underground information server 10 (step S413).

When the underground information server 10 receives the information indicating the communication partner and the underground information from the terminal device 20 (step S312), the underground information server 10 transmits the premises information to the terminal device designated as the communication partner (step S313). Here, when the terminal identification information is designated as the terminal device of the communication partner, the underground information is transmitted to the terminal device 20 corresponding to the designated terminal identification information. If a group is designated as the communication partner, underground information is transmitted to the terminal devices belonging to the group. When the group of "near the face" is specified, for the current face position, the distance from the wellhead 71 is specified by referring to the work process data of the construction, and the radio existing near the distance is specified. The identification information of the LAN router is specified, the terminal identification information indicating the terminal device currently connected to the wireless LAN router is specified by referring to the storage unit 102, and the terminal device 20 corresponding to the terminal identification information is located underground. Send information. As a result, underground information can be transmitted to each underground worker in the vicinity of the face.
Further, when a group such as "○○ group" is designated, the storage area 102 can be referred to by storing the group and the terminal identification information of the terminal device belonging to the group in advance. Then, underground information can be transmitted to each terminal device 20 belonging to the designated group.

Each terminal device 20 designated as the other terminal receives underground information transmitted from the underground information server 10 (step S421, step S431), and the bone conduction vibration unit responds to a signal based on the received underground information. The 204 is driven (step S422, step S423). As a result, a voice message or the like corresponding to the underground information is transmitted to the underground worker wearing the terminal device 20 that has received the underground information by bone conduction.

In the above-described embodiment, the case where the underground information is transmitted from the terminal device which is a tablet terminal to another terminal device 20 has been described, but it is the terminal device 20 or the tablet terminal which is the headset shown in FIG. When a communication partner is specified from the terminal device 20 as shown in step S411 and then "call" is specified as the generation of underground information, a call request is transmitted to the terminal device 20 specified as the communication partner. May be good. When an instruction to answer the call is input in the terminal device 20 that has received the call request, voice communication is performed between the terminal device 20 of the call request source and the terminal device 20 of the call request destination. Can be done. Here, the uttered content is detected by the bone conduction detection unit 203, and voice data according to the detection result is transmitted from one terminal device 20 to the other terminal device 20. The terminal device 20 that has received the voice data can transmit the voice by bone conduction by driving the bone conduction vibration unit 204 with a signal corresponding to the voice data. As a result, the terminal devices 20 can have a conversation with each other.

According to the embodiment described above, it is possible to construct a risk communication system for conversations of people involved in underground work. This enables easy and clear conversation even in a noisy place, for example, by using a bone conduction headset even from a dust mask.
Further, this conversation can obtain all kinds of information by connecting to the underground information server 10 using an underground wireless communication system (for example, Wi-Fi (registered trademark), 4G, 5G, ad hoc, etc.). For example, (1) it is possible to immediately receive an abnormal value of the underground environment measurement result. (2) It is possible to confirm the digger near the face. (3) It is possible to immediately inform (know) the occurrence of an emergency. (4) It is also possible for people involved in underground work to have a conversation at any time.

It is effective when considering underground safety that people involved in tunnel work can talk closely at all times. In addition, it is actually possible to easily obtain environmental measurement information and mine management information of underground workers gathered in the underground information server 10 by using an underground wireless communication system, and to be able to immediately exchange clear instructions and reports in an emergency. It gives great relief to those who work in the area and greatly contributes to the safety of underground work.

Further, in the above-described embodiment, when the terminal device 20 is a tablet terminal or a smartphone, the tablet terminal may receive the image captured by the camera 50 from the underground information server 10 and display it on the screen. Good. Further, the operation input for changing the shooting direction of the camera, zooming in, and zooming out may be performed from a tablet terminal or the like. In response to this instruction, the underground information server 10 may change the shooting direction of the camera 50, zoom in, and zoom out remotely. As a result, the terminal device 20 such as a tablet terminal can grasp the state of the vicinity of the wellhead 71, so that the state of the underground worker or vehicle entering the tunnel 70 and the state of the underground worker or vehicle exiting the tunnel 70 can be confirmed. It becomes possible.

Further, when the power consumption is measured by the sensor 40, the power consumption for each time in a certain range in the past may be displayed on the screen of the terminal device 20 by a graph or the like.

Further, the terminal device 20 is a smartphone, and the sound input to the smartphone and the sound output from the smartphone may be performed by the headset described above. That is, a combination of a smartphone and a headset can also be used as the terminal device 20. In this case, the other party may be selected from the smartphone and input.

By specifying the terminal device 20 connected to the wireless LAN router, it is possible to grasp the position of the terminal device 20. For example, the location information of the underground worker entering the terminal device 20 tunnel 70 connected to the wireless LAN router near the wellhead 71 and the underground worker exiting the tunnel 70 is stored in the underground information server 10 and based on this. , You can also manage the tunnelers. Further, by mounting the terminal device 20 on the vehicle, the position of the vehicle can also be managed.

The underground information server 10 and the terminal device 20 in the above-described embodiment may be realized by a computer. In that case, the program for realizing this function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Further, a "computer-readable recording medium" is a communication line for transmitting a program via a network such as the Internet or a communication line such as a telephone line, and dynamically holds the program for a short period of time. It may also include a program that holds a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or a client in that case. Further, the above program may be for realizing a part of the above-mentioned functions, and may be for realizing the above-mentioned functions in combination with a program already recorded in the computer system. It may be realized by using a programmable logic device such as FPGA (Field Programmable Gate Array).

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes designs and the like within a range that does not deviate from the gist of the present invention. Further, in the embodiment of the present invention, the case where the site is underground has been described, but the site information system is not limited to the application in the underground such as tunnels and underground excavations, and is not limited to the application in the underground, such as buildings and bridges. It can also be applied to construction sites of other civil engineering structures such as.

1 ... Underground information system, 10 ... Underground information server, 20, 20a, 20b ... Terminal device, 30 ... Measurement data collection device, 40, 40a, 40b ... Sensor, 50 ... Camera, 60 ... Network, 70 ... Tunnel, 71 ... Wellhead, 72 ... Face, 73 ... Duct, 74 ... Blower, 80 ... Vehicle, 101 ... Communication unit, 102 ... Storage unit, 103 ... Judgment unit, 104 ... Transmission control unit, 105 ... Call control unit, 106 ... Control unit, 201 ... communication unit, 202 ... storage unit, 203 ... bone conduction detection unit, 204 ... bone conduction vibration unit, 204a ... bone conduction vibration unit, 204b ... bone conduction vibration unit, 205 ... drive unit, 206 ... control unit, 250 ... Main body, 251 ... Headband, 252 ... Battery housing, 253 ... Volume key, 254 ... Housing, 255 ... Attachment connection terminal, 260 ... Signal line

Claims (9)

An on-site information system having a plurality of terminal devices and an on-site information server.
The on-site information server
A storage unit that stores on-site information, which is information about the site,
It has a transmission unit that transmits the on-site information to the terminal device to be transmitted.
The terminal device is
A receiver that receives on-site information transmitted from the on-site information server,
A bone conduction vibration part that is attached to the worker and propagates vibration by bone conduction,
A drive unit that drives the bone conduction vibration unit in response to a signal based on the received on-site information,
On-site information system with. The on-site information server
A measurement result acquisition unit that acquires measurement results detected by sensors that measure the environment in the field,
A determination unit that determines whether or not the measurement result exceeds the reference value, and
When the measurement result exceeds the reference value, the terminal device has a first transmission control unit that transmits on-site information indicating that the reference value is exceeded from the transmission unit.
The drive unit of the terminal device
The on-site information system according to claim 1, wherein the bone conduction vibration unit is driven in response to a voice signal indicating that the reference value is exceeded based on the on-site information. The on-site information server
The emergency information acquisition department that acquires emergency information indicating the occurrence of an emergency,
It has a second transmission control unit that transmits the emergency information as on-site information from the transmission unit.
The drive unit of the terminal device
The on-site information system according to claim 1 or 2, wherein the bone conduction vibration unit is driven in response to a voice signal corresponding to the emergency information based on the on-site information. The on-site information server
A voice data acquisition unit that acquires a voice signal transmitted from the first terminal device among the terminal devices,
It has a third transmission control unit that transmits the audio signal as on-site information from the transmission unit to a second terminal device that is a terminal device different from the first terminal device.
The drive unit of the second terminal device is
The on-site information system according to any one of claims 1 to 3, which drives the bone conduction vibration unit in response to the voice signal based on the on-site information. The first terminal device is
A bone conduction detector that is attached to the on-site worker and detects the vibration of the vocal cords of the on-site worker,
A transmission unit that transmits an audio signal corresponding to the detected vibration of the vocal cords to the on-site information server, and
The on-site information system according to claim 4. Receiving on-site information transmitted from an on-site information server having a storage unit that stores on-site information that is information about the site and a transmission unit that transmits the on-site information to a terminal device to be transmitted. Department and
A bone conduction vibration part that is attached to the worker and propagates vibration by bone conduction,
A drive unit that drives the bone conduction vibration unit in response to a signal based on the received on-site information,
Terminal device with. A bone conduction detector that is attached to the worker and detects the vibration of the vocal cords transmitted to the worker's body,
A transmitter that generates sound data according to the detected vibration and sends it to the on-site information server.
It has a receiving unit that receives sound data generated by another terminal device transmitted from the on-site information server.
The terminal device according to claim 6, wherein the driving unit drives the bone conduction vibration unit according to the received sound data. It is a method of providing on-site information in an on-site information system having a plurality of terminal devices and an on-site information server.
The transmission unit of the on-site information server transmits on-site information, which is information on the site, to the terminal device to be transmitted.
The receiving unit of the terminal device receives the on-site information transmitted from the on-site information server, and receives the on-site information.
The bone conduction vibration part of the terminal device propagates the vibration by bone conduction to the part worn by the worker in the field.
A method for providing on-site information in which a driving unit of the terminal device drives the bone conduction vibration unit in response to a signal based on the received on-site information. It is a method of providing on-site information in terminal equipment.
On-site information transmitted from an on-site information server having a storage unit that stores on-site information that is information about the site and a transmission unit that transmits the on-site information to a terminal device to be transmitted. Received
The bone conduction vibration part is attached to the worker and propagates the vibration by bone conduction.
An information providing method in which a driving unit drives the bone conduction vibration unit in response to a signal based on the received on-site information.

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