JP2006318247A - Worker management communication system, mobile repeater, portable terminal apparatus, worker management apparatus, and communication repeating program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply install a temporary communication route in a working site and to allow a manager to manage the existing places and conditions of workers through the communication line. <P>SOLUTION: In inner space through a passage in which communication means (including wireless communication means) cannot be secured, a worker managing communication system is constructed in a working site in which a working area W is formed. When three workers O(1) to O(3) are working in the working site, the worker managing communication system arranges seven mobile repeaters R(1) to R(7) in the working site and establishes a communication route with a base station B(1) so that a worker management apparatus C in a center can manage biological information. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique such as establishment of a communication path that enables communication between a worker who works within a work site and an administrator who manages the work site outside the work site.

  In recent years, it has become possible to specify the position of a worker at an outdoor work site using a positioning system using a GPS (Global Positioning System) satellite. In recent years, wireless LANs (Local Area Networks) have been actively laid indoors in buildings and the like. However, in such indoor work sites, workers who have already laid wireless LANs are used. It is also possible to specify the position of

  By the way, it is important for the health and safety of the worker to monitor the biological information such as the blood pressure and the body temperature of the worker in real time at a work site that is not preferable for health and a dangerous work site. Usually, when a worker becomes unwell, it is necessary to immediately suspend and evacuate the work, and to contact an external manager promptly. For this reason, recently, a worker wears a biological information measuring device capable of monitoring biological information such as blood pressure and body temperature in real time, grasps the functions of his / her own biological body, and installs a mobile phone network and a wireless LAN. It has also become common to contact the administrator using it.

  In addition, as a biological information measuring device that monitors biological functions in real time, biological information such as blood pressure and body temperature, which is directly attached to each part capable of measuring biological information of the body and measured by an external device such as a personal computer. Is known to monitor in real time by transferring a weak radio wave (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2003-102692 (paragraphs 0047 to 0060, FIG. 9)

  However, conventionally, communication could not be performed unless a communication line connecting the inside of the work site and the outside of the work site has already been laid. In particular, the location (position) of the worker within the work site must be specified because it is not possible to easily perform positioning other than where GPS radio waves can be received or where a wireless LAN is already installed. It was not easy.

  Further, conventionally, the biological information measuring device described in Patent Document 1 measures the biological information of the worker and transfers it to an external device installed near the worker. Transferring to a monitoring device installed outside the work site via a communication path has been considered. However, conventionally, if the wireless LAN and various communication routes that have already been laid are not connected to the inside and outside of the work site, it is not only possible to communicate between the worker and the administrator, but also transfer biological information by communication. I couldn't do it either.

  In addition, a transceiver has been conventionally used as a means for communication between a worker working at a work site where GPS satellites or wireless LAN radio waves do not reach and an administrator outside the work site. In many cases, this transceiver cannot make a direct call in a work place with many radio wave barriers, and since the call function is only available, the administrator cannot determine the location of the worker.

  Therefore, the present invention has an object to improve each of the above-mentioned drawbacks, and a worker who works in a work site and a work site even in a place where a communication path is not established or a place where a communication path is broken or destroyed. The purpose is to make it possible to easily set up a temporary communication path capable of communicating with a manager who manages the field outside, and to allow the manager to manage the location and state of the worker.

  In order to achieve the above object, in the worker management communication system of the present invention, a portable relay device is installed inside the work site to establish a communication path, and the worker has a portable terminal device incorporating a dynamic sensor. The workers were managed by a manager who had data access to the base station on the communication path. Inside the work site where work is being performed, the mobile terminal device is communicably connected to one of the portable relay devices, and is communicably connected to a base station installed on the communication path. In addition, the mobile terminal device transmits the position information of the worker measured by the dynamic sensor to the portable relay device and transfers it to the base station on the communication path. Then, the position information is confirmed by an administrator who can access data to the base station, and the position of the worker (location) is managed and the state of the worker is managed based on the detection state of the dynamic sensor.

  Therefore, according to the present invention, a temporary communication path can be easily installed without relying on a communication path that has already been laid. For this reason, the workers can communicate with each other, and the worker and the manager. In addition, the location of the worker in the work site can be specified. Furthermore, the worker can wear the biological information measuring device and transfer the biological information measured by the biological information measuring device outside the work site.

  In particular, the present invention works when working in an underground mall or tunnel where no communication equipment is laid, or working in an underground mall or tunnel where communication equipment is laid but destroyed due to a disaster ( Even when a rescue operation or a recovery operation is performed, a communication path can be temporarily set up temporarily. For this reason, it is possible to communicate in real time between the workers on the work site and external managers, and in particular, even when a life crisis occurs in such a place, the biological information of the workers is externally transmitted. Therefore, the lifesaving operation of the worker can be performed promptly.

Embodiments of the present invention will be described below with reference to the drawings.
First, the outline of the worker management communication system of the present invention will be described according to the conceptual diagram shown in FIG. Here, a work site in which a work area W is formed in an internal space through a crank-shaped passage will be described as an example. In addition, when three workers O (1) to O (3) work at the work site, seven post-transmission relay devices R (1) to R (7) are arranged inside the work site. A case where a communication path is established with the base station B (1) and the biological information is managed by the center worker management apparatus C will be described.

Specifically, the worker first arrives at the work site and installs the base station B (1) at the entrance of the passage. The base station B (1) is connected to a communication network such as a cellular phone network via wireless communication, and is connected to a worker management apparatus C installed in the center. Note that (1) of the base station B (1) represents the ID of the base station B managed by the worker management apparatus C. That is, the worker management device C considers managing workers at a plurality of work sites.
When the worker has finished installing the base station B (1), the base station B (1) is used as a reference position, and the portable relay devices R (1) to R (7) are brought into the passage. Go. And the portable relay apparatus R (1) -R (5) is installed for every angle | corner of the crank in a channel | path.

  Next, the portable relay device R (1) is installed at the corner of the crank (the first corner when viewed from the entrance), which is a range in which radio waves can be communicated with the base station B (1). At this time, the portable relay device R (1) is turned on, for example, in the vicinity of the base station B (1), and is connected for communication with the base station B (1). The portable relay device R (1) measures the intensity of the radio wave transmitted from the base station B (1), and is installed in a location where the intensity does not fall below a predetermined value. Here, it is assumed that the intensity at the first corner has a value sufficiently larger than a predetermined value. In addition, it is preferable to determine whether or not the intensity is equal to or less than a predetermined value, and when it is equal to or less than the predetermined value, it is preferable to output an alarm sound to notify the worker.

In addition, the portable relay device R (2) is arranged in a range (second corner) in which radio waves can be communicated with the portable relay device R (1). Similarly, portable relay devices R (3), R (4), and R (5) are respectively disposed at the third, fourth, and fifth corners in the passage.
In the work area W, since the number of portable terminal devices that can be simultaneously connected to one portable relay device is determined to some extent, it is necessary to install a plurality of portable relay devices so that sufficient communication is possible. preferable. Therefore, here, the portable relay device R (6) is installed in the vicinity of the entrance of the work area W within a range where radio waves can be communicated with the portable relay device R (5). In addition, the portable relay device R (7) is disposed in a substantially central area of the work area W within a range where radio waves can be communicated with the portable relay device R (6).

  As described above, the portable relay devices R (1) to R (7) installed in the work place form a communication path with the base station B (1). Each time a portable relay device R (1) to R (7) passes a worker who has a portable terminal device described later (any of portable relay devices R (1) to R (7) and a portable terminal device described later) Can be received from the portable terminal device described later, transferred on the communication path, and transferred to the base station B (1). .

Then, the base station B (1) connects to the worker management apparatus C via a public network (not shown), and positioning information is also transferred to the worker management apparatus C. Therefore, the manager can manage the worker who works at the remote work site by the worker management device C.
Therefore, a communication path is formed simply by moving the power of the portable relay devices R (1) to R (7) to the installation location after installation. Therefore, it is possible to quickly perform work at a disaster site or a work site requiring urgent work such as recovery work.

  As described above, when the base station B (1) and the portable relay devices R (1) to R (7) are arranged at the work site, a communication path is established inside the work site, and the base station B It becomes possible to connect to the worker management apparatus C via (1). Therefore, for example, when the workers O (1) to O (3) work in the work area W, the passages in which the base station B (1) is installed with the respective portable terminal devices described later It passes through the passage from the entrance and enters the work area W via the portable relay devices R (1) to R (5). Since each portable relay device R (1) to R (5) and each portable terminal device described later can communicate with each other in the passage, each worker O (1) to O (3) moves in the passage. Communication is secured.

  Then, when each worker O (1) to O (3) enters the work area W and arrives at each arrangement, each worker O (1), O (2), O (3) will be described later. The terminal device is connected to the portable relay devices R (6) and R (7). Also, here, workers O (1) and O (2) working at a position close to the portable relay device R (7) are portable relays having stronger radio field strength than the portable relay device R (6). Connect preferentially to the device R (7). In this case, it is possible by the mobile terminal devices described later by the workers O (1) to O (3), the portable relay devices R (1) to R (7), and the base station B (1). It can also be seen as a communication path that branches into two at the portable relay device R (7).

  In addition, since the worker O (3) is working between the portable relay devices R (6) and R (7), it passes through the portable terminal device described later that the worker O (3) has. Then, it may be transferred. This will be described by taking as an example a case where each worker O (1) to O (3) wears each biological information measuring device described later on the body and relays biological information measured by each biological information measuring device described later. If the biological information of the worker O (1) is represented with d, the biological information O (1) d, O (2) d is transferred to the worker O via the portable relay device R (7). (3) Transferred to the portable terminal device. And the postscript portable terminal device of the worker O (3) sends the biological information O (1) d, O (2) d, O (3) d to the portable relay device R (6), and the base station B ( You may make it transfer to the worker management apparatus C from 1).

Next, the configuration of the worker management communication system will be described with reference to the block diagram shown in FIG.
The worker management communication system receives the biological information measuring device S that is worn on the worker's body and measures biological information, and receives the biological information measured by the biological information measuring device S with weak radio waves. A portable terminal device T having a biometric information transfer function, a communication function such as a telephone call, and a positioning function, a portable relay device R which is arranged at an appropriate position inside the work site and establishes a communication path, and an outside of the work site ( A base station B which is arranged at a position serving as a reference for communication inside) and can be connected to the communication path established by the portable relay device R and the public network P, and is connected to the base station B via the public network P. And a worker management device C that manages worker information such as biological information. Only one portable relay device R is shown for convenience. Hereinafter, each device will be described.

The portable terminal device T is communication means possessed by an operator, and includes positioning means 11, control means 12, voice output means 13, display means 14, storage means 15, input means 16, and wireless communication means. 17 is mainly provided.
In more detail, the positioning means 11 detects the movement of the body, the walking means 1 that measures the moving distance based on the number of steps, the azimuth sensor 2 that detects the direction in which the walking means 1 is walking, and the body movement. And the gyro 3 to be configured. That is, the positioning means 11 measures the relative position from the reference position based on the movement distance and movement direction of the worker. The azimuth sensor 2 may be composed of a azimuth magnet or a gyro. Further, each of the walking means 1, the azimuth sensor 2, and the gyro 3 as the positioning means 11 are to be referred to as a dynamic sensor as appropriate because they detect the dynamic state of the worker. In addition, as a technique regarding a dynamic sensor, the technique described in Japanese Patent Application Laid-Open No. 2005-050005 by the applicant can be used.

  The control unit 12 controls the entire mobile terminal device T. The voice output means 13 outputs a warning sound or a voice during a call. The display means 14 displays various image / character information, for example. The storage unit 15 stores various information. For example, it stores various data and various programs such as its own device ID, various information transferred from each portable terminal device T, and a post worker basic information table. The input means 16 is for inputting various data, and here includes a key input unit and a voice input unit. Moreover, you may include the image input part which inputs an image. The wireless communication means 17 connects communications with other portable terminal devices T, biological information measuring devices S, portable relay devices R, and / or base stations B.

  The biological information measuring device S includes a blood pressure sensor 20 that measures blood pressure, a pulse measurement sensor 21 that measures a pulse, a respiration rate counting sensor 22 that measures a respiration rate, a body temperature measurement sensor 23 that measures body temperature, and a wearing site. An acceleration sensor 24 that measures the acceleration of the mobile phone, a control unit 25 that controls the entire system, a storage unit 26 that stores the measured biological information, identification information, and the like, and a wireless that transmits the biological information to the mobile terminal device T using weak radio waves. It mainly includes a communication unit 27, an input unit 28 for inputting various information, and a display unit 29 for displaying measured biological information and the like. Here, blood pressure, pulse, respiratory rate, body temperature, and acceleration of arm swing are taken as examples of biological information. Each sensor is not only housed in one housing, but may be configured separately. Further, the worker may not only wear one biological information measuring device S but also attach a plurality of biological information measuring devices S to a part where each biological information can be easily measured.

  The portable relay device R is a wireless communication that performs communication with the control means 32 that controls the entire control, the display means 33 that displays various information, the base station B, the mobile terminal device T, and other portable relay devices R. It mainly comprises means 34, storage means 35 for storing various information such as connection destination information and biological information, and input means 36 for inputting various information.

  The base station B includes a control unit 41 that controls the entire system, a voice output unit 42 that outputs voice and alarms, a display unit 43 that displays various information, a mobile terminal device T, a portable relay device R, and A wireless communication means 44 for communicating with the worker management device C via the public network P, a positioning means 45 for positioning based on a GPS signal received via a GPS communication means (not shown), and various information are input. Input means 46 and storage means 47 for inputting various information such as connection destination information and biological information.

The worker management apparatus C includes a processing unit 50 that controls the entire process, a communication unit 54 that communicates with the base station B via the public network P, and an input unit 55 that inputs various types of information. Are mainly provided with storage means 56 for storing various information and display means 57 for displaying various information.
In particular, the processing means 50 has a function of managing information related to workers. Specifically, the processing means 50 includes a worker biometric information management unit 51, a worker attendance information management unit 52, and a position information management unit 53 as functions.

  The worker biometric information management unit 51 converts the biometric information transferred via the public network P into a database for each worker, and stores it in the storage unit 56 as a postscript biometric information database. In addition, the normal biological information of each worker is added to the worker basic information table described later and stored in the storage means 56. Then, when both data are compared, if there is an abnormality, an alarm is displayed on the display means 57, an alarm sound is output from a speaker (not shown), or an alarm is transmitted to the base station B via the public network P. And so on.

  The worker attendance information management unit 52, for example, works when it is transferred from the base station B with the time when the worker first arrived at the base station B as the start date and time and the time when the worker leaves the base station as the end date and time. It is added to the postscript time card table for each member and stored in the storage means 56.

  The position information management unit 53 includes a postscript position information table including the installation position of the portable relay device R at the work site, a postscript base station connection destination table including an address via the public network P of the base station B, and the mobile terminal device T. Postscript connection destination table including connection destination information indicating which portable relay device R or base station B is connected at the work site, and postscript base station that registers the position (longitude, latitude, altitude) of base station B Information related to various positions such as a position information table is stored in the storage means 56 and managed.

  As described above, the public network P is arranged between the base station B and the worker management apparatus C. The public network P may be any type of communication and business company, regardless of whether it is wired or wireless. For example, it may be any of a fixed telephone network, an IP (Internet Protocol) network, a mobile phone network, and a wireless LAN, or a combination thereof.

Next, each table described above will be described with reference to FIGS.
First, as shown in FIG. 3, the position information table of the mobile terminal device T includes the ID (T (1), T (2), T (3)...) Of each mobile terminal device T and each portable relay device. Positioning start time for each R, positioning information of (step count / azimuth), distance between devices, total distance, direction, estimated latitude, estimated longitude, estimated altitude, and the like are included. This table includes positioning information when positioning is performed while the portable terminal device T is being carried by the worker and a value calculated based on the positioning information. In this table, the inter-device distance is the distance between the connected portable relay device R and the portable terminal device T. This distance can be calculated from the radio wave intensity from the portable relay device R to which the mobile terminal device T is connected. Description of this is omitted.

  The total distance is the total distance (distance) from the base station B to the portable relay device R or the mobile terminal device T to which the mobile terminal device T is connected. The direction is the direction in which each mobile terminal device T exists when viewed from the base station B. The estimated latitude, estimated longitude, and estimated altitude are estimated values calculated from the measured values.

  In addition, the positioning start time for each mobile terminal device T and the positioning information of (steps / azimuth) can be obtained in real time, so that the accumulated data can be plotted on the display screen and represented as a trajectory.

As shown in FIG. 4, the base station connection destination table includes an address and a connection ID for each base station B ID. The connection ID includes the IDs of the portable relay device R and the mobile terminal device T connected at each work site.
As illustrated in FIG. 5, the connection destination table of the mobile terminal device T includes an address, a terminal ID, a worker ID, an update time, and a connection destination ID. When the connection destination is changed (added) at the update time, the connection destination ID is associated with the terminal ID and the worker ID possessed.

  As shown in FIG. 6, the biological information table of the worker O (n) includes an acquisition time, a pulse, a systolic blood pressure, a diastolic blood pressure, a body temperature, and a work state. For example, when the biological information measuring device S is worn on the arm, the work state is set to the ON flag as the work state when the acceleration sensor 24 that detects the movement of the arm continuously detects the acceleration. Then, when the acceleration is smaller than a predetermined value, an OFF flag is set to manage the worker's work state.

As shown in FIG. 7, the worker basic information table includes a worker ID, a measurement device ID, a terminal ID, a pulse, a systolic blood pressure, a diastolic blood pressure, and a body temperature. . The biological information acquired as a normal value when the worker is healthy is registered in association with each ID.
As shown in FIG. 8, the base station position information table associates a base station ID, positioning time, latitude, longitude, and altitude.
As shown in FIG. 9, the time card table of the worker O (n) includes a start date and time, an end date and time, and an area ID. The area ID indicates a work area where work was performed on the target date and time.

Now, processing for each device of the worker management communication system having the above-described configuration will be described with reference to a flowchart.
First, a series of processing from power-on to power-off of the portable relay device R will be described according to the flowchart shown in FIG.
When the worker turns on a power supply (not shown) of the portable relay device R (Sa1), the control means 32 searches for connectable communication devices (Sa2). As described with reference to FIG. 1, when the portable relay device R (1) is installed, the base station B (1) is searched for as a higher-level communication device. In addition, when the portable relay device R (2) is installed, the portable relay device R (1) is searched as a higher-level communication device. Here, the communication device is a concept including any of the portable relay device R, the base station B, and the mobile terminal device T. Further, the higher order means the base station B (1) side (approaching), and the lower order means leaving the base station B (1).

  Next, the control means 32 connects to the searched upper communication device (Sa3), and determines whether there is a connection request from the lower communication device (Sa4). This step Sa4 corresponds to a process when viewed from the upper communication device side of the connection in step Sa3. Then, when there is a connection request (Yes in Sa4), the control unit 32 connects to the lower-level communication device (Sa5), and moves the process to Sa5. Also, if there is no connection request for a predetermined time, the process proceeds to Sa5.

  Next, the control means 32 determines the presence or absence of relay data (Sa6). The relay data includes position information of the mobile terminal device T, biological information of the biological information measuring device S, and the like. When the relay data is included (Yes in Sa6), the control means 32 performs a relay data transfer process (Sa7), and moves the process to Step Sa8. This relay data transfer process will be described later with reference to FIG. If the relay data has not been transferred for a predetermined time (No in Sa6), the process proceeds to step Sa8. Finally, the control means 32 determines whether or not a power-off command has been input for a predetermined time (Sa8). If not input, the process returns to step Sa4 (No in Sa8), and if input, the process ends (Yes in Sa8).

Here, the processing when the portable relay device R is installed inside the work site will be briefly described with reference to the flowchart shown in FIG. Hereinafter, the conceptual diagram of FIG. 1 will be referred to as appropriate.
In the portable relay device R, the control means 32 searches for and connects to the higher-level communication device (Sa2, Sa3). The two steps Sa2 and Sa3 mean that the portable relay device R (1) is connected to the base station B (1) for communication.

  When the portable relay device R (1) is installed at the first corner, the power of the portable relay device R (2) is turned on (Sa1). The control means 32 of the portable relay device R (2) also tries to connect to a connectable higher-level communication device (connection request output) (Sa2, Sa3). On the other hand, the portable relay device R (1) receives a connection request from the portable communication device R (2) and connects to the portable communication device R (2) (Sa5). At this time, if there are a plurality of higher-level portable relay devices R, the setting is made so that the connection is made preferentially to a device having a strong radio wave intensity or by referring to the ID of the relay device. Just keep it.

Next, relay data transfer processing of the portable relay device R will be described according to the flowchart shown in FIG.
When the wireless communication means 34 receives the relay data (Sb1), the control means 32 determines whether or not it is biometric information (Sb2). If it is determined that the information is not biometric information (No in Sb2), the control unit 32 subsequently determines whether it is a position information table or a connection destination table (Sb3), and if it is not any table (No in Sb3). ), The process moves to Sb6, and in the case of any table (Yes in Sb3), registration is performed in the storage means 35 (Sb4), and the process moves to Sb6.

  On the other hand, if it is determined in step Sb2 that the control means 32 is biometric information (Yes in Sb2), it is subsequently determined whether or not a higher-order ID is assigned (Sb5). When the higher-order ID is assigned (Yes in Sb5), the control unit 32 subsequently transmits the relay data toward the designated higher-order ID (Sb6). Further, the control means 32 stops the relay when the higher-order ID is not given (No in Sb5). If a management portable terminal device (not shown) carried by the administrator is present in the work site, the relay data for which relay has been canceled may be transferred to the management portable terminal device. Here, it is assumed that the management portable terminal device is set with an authority to access any information.

Next, communication processing of the mobile terminal device T will be described according to the flowcharts shown in FIGS. 12A and 12B.
First, when the worker turns on the power, positioning by the positioning means 11 is started (Sc1). The positioning by the positioning means 11 is continuously performed until the power of the mobile terminal device T is turned off. In addition, the measurement result is appropriately transmitted as interrupt processing to the worker management device C via the portable relay device R or the mobile terminal device T connected to the base station B by the following processing. .

  Next, the control means 12 searches for the base station B and establishes communication connection with the base station B (Sc2). Next, the control means 12 moves to a process for searching for the portable relay device R (n). First, the control means 12 sets the value of n for identifying the portable relay device R (n) to 1 (Sc3), and the worker enters the work site passage from the base station B (1). The portable relay device R (1) installed closest to the entrance of the passage is searched (Sc4).

  Then, the control means 12 determines whether or not the portable relay device R to be searched can be captured in this search (Sc5), and if it cannot be captured (No in Sc5), it determines n previous time <n current time. (Sc6). This determination corresponds to whether the worker is moving away from the base station B or moving toward the base station B. That is, when n is larger than the previous time (Yes in Sc6), the example shown in FIG. 1 means that the mobile station is moving away from the base station B (1). n is incremented by +1 (Sc7), and the search range is expanded in a direction from the base station B toward the inside of the work site.

Next, the control means 12 determines whether or not the search has been performed for all n based on whether or not n> n _max (Sc8). Then, when the value of n of all the portable relay devices R installed at the work site exceeds the registered maximum value (Yes in Sc8), the control unit 12 searches thereafter. However, since there is no portable relay device R installed at a position away from the base station B, the search for the portable relay device R installed in the direction away from the base station B is terminated, and the process proceeds to the next Sc18. Move. If the maximum value is not exceeded (No in Sc8), the process returns to Sc4.

  On the other hand, in the process of Sc6, when the control means 12 is n smaller than the previous time (No in Sc6), in the example shown in FIG. Therefore, n is decremented by +1 (-1 increment) (Sc15), and the search range is expanded from the base station B to the outside of the work site. At this time, the control means 12 determines whether or not the incremented n is 0 (Sc16).

  If n is 0 (Yes in Sc16), the control means 12 has completed the search on the base station B side for the portable relay device R, and therefore +1 is added to the n assigned area of the assigned work area that has not been searched. Increment and move the process to Sc8. At this time, since n = 0 in the previous time and n in charge this time, the control means 12 performs the process in Sc7 when it reaches Sc6 through the processes of No in Sc8, No in Sc4, and No in Sc5. (Sc6 Yes). Therefore, in this case, a direction away from the base station B from the assigned work area is searched. If n is not 0 (No in Sc16), the control means 12 moves the process to Sc8 and searches in the direction toward the base station B.

  On the other hand, in the case of Yes in step Sc5, the control means 12 determines whether there is already a portable relay device R (n) that is in communication connection (Sc9). If there is a portable relay device R (n) that is already connected for communication (Yes in Sc9), the control means 12 compares the strength of the received radio wave and selects the stronger portable relay device R (n). (Sc10), communication connection is performed with the selected portable relay device R (n) (Sc11). Further, if there is no portable relay device R (n) that is already in communication connection (No in Sc9), the control means 12 performs communication connection with the portable relay device R (n) (Sc11).

  Next, the control means 12 determines whether or not the connected portable relay device R (n) is within the work area in charge of the target worker (Sc12). If the control means 12 is within the work area of the target worker (Yes in Sc12), the control means 12 determines whether or not the received radio wave intensity from the communication-connected portable relay device R (n) is equal to or higher than a predetermined value. Determine (Sc13). This determination can also be used to determine whether or not the target worker is performing work in the assigned work area. That is, if the reception intensity is equal to or greater than the predetermined value (Yes in Sc13), it indicates that the target worker is in the work area in charge, and thus the step of Sc13 is repeated while the worker is working in the work area. Become.

  Further, the control means 12 indicates that the target worker has started moving from within the assigned work area if the reception intensity is smaller than the predetermined value (No in Sc13). The value of n to be searched is decremented by +1 (Sc14), and the process returns to Sc4. Here, instead of incrementing by +1, it is decremented by +1 because when the target worker leaves the work area in charge, he often finishes the work and returns to the base station B side.

  On the other hand, in Sc18, the control means 12 determines whether there is a portable relay device R (n) that has already been connected for communication. If there is a portable relay device R (n) that is connected for communication (Yes in Sc18), the control means 12 is not in the direction away from the base station B (n → n + 1) rather than in the work area, but in the base in the work area. Since the connection is made in the direction approaching the station B (n → n−1), the process returns to Sc13. In addition, if there is no portable relay device R (n) connected for communication (No in Sc18), the control means 12 further checks whether communication connection with the base station B is possible (Sc18.1). If it is possible to connect to the base station B (Yes in Sc18.1), it means that the worker is out of the work site. Therefore, the process moves to Sc30, and the process ends according to turning on / off of the power source. .

  On the other hand, if the control means 12 cannot connect to the base station B (No in Sc18.1), since the worker is in an area where communication with any portable relay device R is impossible, the process moves to Sc19 and the connection is established. The process moves to a process of searching for a possible portable terminal device T.

  First, the control means 12 sets the value of n for searching for the mobile terminal device T (n) to 1 (Sc19). However, in the following process, it is determined whether or not it is the value of its own n, and the process of searching for itself is not performed. The control means 12 searches for the target mobile terminal device T (n) (Sc20). And if the control means 12 can be acquired (Yes of Sc21), it will determine whether communication with a base station is possible via the acquired portable terminal device T (n) (Sc22). If it cannot be captured (No in Sc21), the process proceeds to Sc26.

  If communication is possible (Yes in Sc22), the control means 12 determines whether or not there is a mobile terminal device T (n) that has already been connected for communication (Sc23). Then, if there is a mobile terminal device T (n) connected for communication (Yes in Sc23), the control means 12 compares the strengths of the received radio waves (Sc24), and the mobile terminal device T ( n) and communication connection (Sc25). Next, the control means 12 increments the value of n by +1 (Sc26), and repeats the processes of Sc20 to Sc27 until all n are completed (No in Sc27).

  And the control means 12 determines whether the elapsed time from communication disconnection passed predetermined time (Sc28). Here, the communication disconnection means that the portable relay device R and the base station B cannot be communicably connected to the portable relay device R and the base station B in Sc18 and Sc19, but are connected to the portable relay device R and the base station B in Sc20 to Sc27. It is the time during which communication connection with the terminal device T was not established. If it is determined that the predetermined time has passed (Yes in Sc28), the control means 12 outputs an alarm (Sc29) and prompts the target worker to move quickly to a range where it can be connected to either. . Moreover, the control means 12 complete | finishes a process (Yes of Sc30) depending on whether a power supply is turned off (Sc30). After the alarm is output (Sc29), the control unit 12 returns the process to Sc3 if the power is not turned off after a predetermined time has elapsed. In addition, also when the control means 12 determines with the elapsed time after communication disconnection not having passed predetermined time (No of Sc28), a process is returned to Sc3.

Here, the processing of the portable terminal device T when the portable relay device R is installed inside the work site will be briefly described using the flowchart shown in FIG. 12A. Hereinafter, the conceptual diagram of FIG. 1 will be referred to as appropriate.
When the portable relay device R is installed, the control means 12 of the mobile terminal device T performs steps Sc3 → Sc4 → Sc5 (Yes) → Sc9 (→ Sc10) → Sc11 → Sc12 (No) → Sc6 (Yes) → Sc7 → Sc8. (No) → Sc4 loop processing is performed. That is, every time the portable relay device R is installed and increased, a search is performed (Sc4, Sc5), and the portable relay device R having a strong received radio wave (a worker is carrying) is connected (Sc11). This is because the value of n of the portable relay device R (n) to be connected next is incremented by +1 (Sc6, Sc7, Sc8).

  Therefore, since positioning by the positioning means 11 is also performed at the same time, positioning information is recorded and stored in the worker management device C every time it is connected to the portable relay device R having a strong received radio wave (the worker is carrying). If it transmits, the installation position in the work site of the portable relay apparatus R can be specified. A map inside the work site can also be drawn based on this positioning information. In addition, when the actual map is known, it is useful to accurately grasp the positioning result and the actual installation location of the portable relay device R by superimposing the actual map.

  Further, when the position of the portable relay device R is specified, the positioning start information of the portable terminal device T carried by the worker during work is indicated in the vicinity of the portable relay device R (the radio wave intensity of a predetermined value or more). It may be reset when it becomes. Even if the movement of the worker is complicated and the positioning error becomes large, if the position information of the portable relay device R is reset, the location of the worker can be grasped without error.

Next, the biometric information transfer process of the mobile terminal device T will be described according to the flowchart shown in FIG.
First, the control means 12 acquires biological information from the biological information measuring device S (Sd1). This acquisition is performed in real time or periodically at predetermined intervals. The acquisition interval may be properly used according to the type of biological information. For example, blood pressure is every 10 minutes, body temperature is every 10 minutes, respiratory rate is every 1 minute, and pulse is every other minute. Next, the control means 12 registers the acquired biological information in the storage means 15 (Sd2).

  Subsequently, the control means 12 refers to the position information table in order to identify the connected portable relay device R or base station B (Sd3), and to identify the connected mobile terminal device T. The connection destination table is referred to (Sd4). And the control means 12 determines whether the communication path is ensured between the base stations B (Sd5). If the communication path is not secured (No in Sd5), the control unit 12 returns the process to Sd2.

  If the communication path is secured (Yes in Sd5), the control unit 12 determines whether or not the real-time transfer mode is set (Sd6). Here, the real-time transfer mode is a mode for transferring biometric information every time it is acquired. Then, in the real-time transfer mode (Yes in Sd6), the control unit 12 causes the biological information to be transferred together with the terminal ID along the secured communication path (Sd9).

  On the other hand, when the real time transfer mode is not set (No in Sd6), the control means 12 determines whether or not the transfer mode is set for every predetermined time (Sd7). Here, the transfer mode every predetermined time is a mode in which biological information is transferred every predetermined time. Then, in the case of the transfer mode at every elapse of the predetermined time (Yes in Sd7), the control means 12 determines whether or not the predetermined time has elapsed (Sd8), and if it has elapsed (Yes in Sd8). ), The biometric information is transferred along with the terminal ID along the secured communication path (Sd9).

  Further, if the transfer mode is not the transfer mode for every elapse of the predetermined time (No in Sd7), the control unit 12 requests the mode selection, inputs the mode (Sd10), and returns the process. Moreover, the control means 12 returns a process, when predetermined time has not passed (No of Sd8).

Next, the biological information measurement process of the biological information measuring device S will be described according to the flowchart shown in FIG.
When the operator wears the body on the body and turns on the power (Se1), the control means 25 receives signals from the blood pressure sensor 20, the pulse measurement sensor 21, the respiration rate counting sensor 22, the body temperature measurement sensor 23, and the acceleration sensor 24. The input is started, and acquisition of biological information corresponding to each sensor is started (Se2). And the control means 25 transfers biometric information to the portable terminal device T according to a setting (Se3). Here, the setting may be described in the biometric information transfer process of the mobile terminal device T. For example, in real time every 10 minutes.

  In addition, since the biological information measuring device S includes the storage unit 26, when the normal value of the worker is registered, the control unit 25 refers to the basic information table of the worker and the biological information. The measured value is compared with the normal value (Se4). If the control means 25 determines that there is an abnormality (Yes in Se5), it notifies the attention signal (Se6) and returns the process. If there is no abnormality (No in Se5), the control means 25 returns the process as it is. .

Next, the relay processing of the base station B will be described according to the flowchart shown in FIG.
When the equipment of the base station B is installed by a worker's hand and the power is turned on (Sf1), the control means 41 first performs a positioning process by the positioning means 45. Specifically, the positioning means 45 performs positioning based on the GPS signal from the GPS satellite, and specifies its own position (latitude / longitude / altitude) (Sf2). Receiving this, the control means 41 creates and registers a base station position information table, and transmits it to the worker management apparatus C via the public network P (Sf3).

  Then, the base station B enters an operation state, and the control means 41 determines whether or not the radio wave from the portable relay device R or the portable terminal device T has been received (Sf4). If the control means 41 receives (Yes of Sf4), the control means 41 will transfer the information carried on the radio wave to the worker management apparatus C (Sf5). If no signal is received after a predetermined time has elapsed (No in Sf4), the process proceeds to Sf6.

Further, the control means 41 determines whether or not the radio wave from the worker management device C has been received (Sf6). If the radio wave is not received even after a predetermined time has elapsed (No in Sf6), the process proceeds to Sf12. If received (Yes in Sf6), the process proceeds to Sf7.
The control means 41 determines whether the information from the worker management device C is the transfer destination of the portable terminal device T or the portable relay device R (Sf7). If they are transfer destinations (Yes in Sf7), the control means 41 performs transfer (Sf8), and if the information is table information, registers each table information (Sf9).

  On the other hand, if they are not the transfer destination (No in Sf7), the control means 41 first determines whether or not the information is broadcast information (Sf10). Here, the notification information includes information that notifies when there is an abnormality in the biological information or the like. If it is notification information (Yes of Sf10), the control means 41 will output a notification sound from the audio | voice output means 42, and will display a message on the display means 43 (Sf11). Moreover, if it is not alerting | reporting information (No of Sf10), the control means 41 will move to the other process abbreviate | omitted here. If the power is not turned off for a predetermined time (No in Sf12), the control unit 41 returns the process to Sf4, and if the power is turned off, ends all the processes (Yes in Sf12).

Next, management processing of the worker management apparatus C will be described with reference to the flowchart shown in FIG.
When receiving the signal from each base station B (Sg1), the processing means 50 determines whether or not the position information is the base station B (Sg2). Then, if it is position information (Yes in Sg2), the processing means 50 creates a base station position information table, registers it in the storage means 56, and transmits it to the base station B (Sg3). Further, the processing means 50 determines whether or not the positioning information of the mobile terminal device T has been transferred (Sg4) after the base station position information table is created instead of the position information (No in Sg2).

  If it is positioning information (Yes of Sg4), the processing means 50 will create / register / transmit the position information table of the portable terminal device T (Sg5). In addition, the processing unit 50 determines whether it is not the positioning information (No in Sg4) or the connection destination information of the mobile terminal device T after the creation of the position information table (Sg6).

  If it is connection destination information (Yes in Sg6), the processing means 50 creates, registers, and transmits a connection destination information table of the mobile terminal device T (Sg7). In addition, the processing unit 50 creates the base station connection destination table instead of the connection destination information (No in Sg6) or after creating the connection destination information table (Sg8). Here, as described above, the IDs of all the communication devices connected to the base station B are registered in the base station connection destination table.

  Next, the processing means 50 determines whether or not the received information is biometric information (Sg9). If it is biometric information (Yes in Sg9), it is compared with the normal value of the corresponding worker (Sg10). If there is an abnormality (Yes in Sg10), a notification signal is sent from the display means 57 or a speaker (not shown). It is generated and transmitted to the base station B (Sg11), and the process proceeds to Sg12. If there is no abnormality in the biological information (No in Sg10), the processing unit 50 moves the process to Sg12. Then, a biological information table for each worker O (n) is created (Sg12) and registered in the storage means 56. In addition, a biological information table is transmitted to the base station B as necessary.

  Further, when the received information is not biometric information (No in Sg9) or the creation of the biometric information table is completed (Sg12), the processing unit 50 determines whether the information is work start date / time / end date / time (Sg13). ). Here, when it is not these information, it transfers to another process (omission) (No of Sg13). And if it is such information (Yes of Sg13), the processing means 50 will update the time card table for every worker O (n) (Sg14).

  Further, when communication cannot be ensured for a certain period of time during the above-described work, an alarm is issued, so that the worker is notified that the communication path has deviated for a certain period of time. When such an alarm occurs, particularly when work is performed in a dangerous area or the like, it is desirable to restart the work after taking measures such as reviewing the arrangement of the portable relay device R. .

Finally, a usage example of the worker management communication system will be described.
(1) Condition management of workers' physical condition in the work area According to the worker management communication system of the present invention, when working in a coal mine, underground, etc. where it is difficult to check the work status from outside the work area, The biological information of the worker can be grasped by the base station B and the center side (worker management device C). Management of the position of the worker is an important factor, but it can be useful for preventing accidents by managing the physical condition of the worker.

(2) Personnel dispatch tool to places where the situation cannot be grasped, such as disaster sites (status management in hazardous areas)
According to the worker management communication system of the present invention, it is possible to manage a worker's state and the like when a rescue operation and a fire extinguishing operation are performed in a closed space such as a subway fire and an underground passage. In addition, since communication means can be suddenly ensured in the event of a disaster such as a fire, the worker's pulse, body temperature, etc. can be added to the position information and contacted to the base station B. In addition, when it is desired to check the work status in real time, video images or the like of the video camera may be added to the communication path and sent to the base station B. With this function, it is possible to cope with situations where the situation cannot be determined and hesitates to dispatch personnel.

(3) Instructions from a remote location to workers According to the worker management communication system of the present invention, work is performed in a closed space or the like, and the base station B and the portable type are installed in a place where no communication means is permanently installed. By installing the relay device R in the communicable area, it is possible to give an instruction to the worker from a remote place.
For example, if a worker is carrying out work such as periodic maintenance, and it is determined that there is content that cannot be performed by any work according to some procedure, a designer / manager who is familiar with the device design content It is possible to obtain the information from the office and give work instructions. In particular, it is possible to promptly take appropriate measures by sending images taken with a video camera to a designer / administrator in a remote location.

(4) Collecting information for appropriate placement of workers According to the worker management communication system of the present invention, it is possible to determine in real time which machine the worker is working for which machine. It is possible to collect information by the worker management apparatus C.
(5) Appropriate Arrangement of Workers In the case shown in (4) above, according to the worker management communication system of the present invention, it becomes possible to grasp the necessary personnel for each work based on the result of collecting work information. Thereby, it is possible to optimize the work personnel by grasping the personnel for each work and filling the work plan in detail in advance. In addition, if the information is acquired at the center in real time, a worker who has completed a work in a certain situation can be assigned to a work that requires personnel at that time. Therefore, optimization of personnel can be achieved.
In addition, it is necessary in the center-side worker management device C connected to the base station B or the base station B in real time even if it cannot be estimated in advance at what place such as a disaster site. Personnel can be appropriately placed in the area. Also, if the situation of the surroundings, retreat, etc. changes during work at a disaster site etc., understand the condition of the worker's physical condition from the base station B or the center side worker management device C to the worker In addition, appropriate instructions can be issued. Thereby, the information management regarding a worker's safety can be performed correctly.

(6) Management of visitors in the hazardous area Even if there are no particular problems with the work contents, such as maintenance and inspection work in the hazardous area, it can be used when it is desired to know the number of workers in the area. Based on the information from the portable terminal device T possessed by the worker, the position of the worker can be grasped at the base station and the center side. Also, based on this information, it manages how many people are in a certain area, and from the base station B or the worker management device C on the center side, to the workers in the work area, work instructions / removal instructions・ You can give directions to enter the room.

(7) Work time management of workers in the work area According to the worker management communication system of the present invention, when work is performed in a work area where the work time in the work area is legally specified (for example, In the radiation control area), it is possible to manage the time that the worker was in the work area. For example, the base station B and the worker management device C on the center side can grasp information on how long the worker has stayed in the area along with the locus information of the worker. As a result, a third party who currently performs time management counts the work time of each worker and manages the work time management of each worker as data by the worker management device C on the center side without managing the work time. This makes it easier to process data.

(8) Prohibition of entry into unauthorized area other than worker's work area According to the worker management communication system of the present invention, the worker's trajectory can be managed. By managing the attributes of these workers, when an operator enters the unauthorized area, a countermeasure such as issuing an alarm may be taken. In this case, it is possible to manage information on which worker has entered the unauthorized area for how long. It is also possible to communicate with a specific worker and prompt the user to leave the unauthorized area.

(9) Display on GIS (Geographical Information System) Data According to the worker management communication system of the present invention, the worker information can be represented by a trajectory. By holding the map, etc., it becomes possible to display the position, situation, physical condition, etc. of the worker on the image. Therefore, by visualizing, it becomes easier to grasp the position of the worker and can be performed more efficiently than the management on the center side.

As described above, in the embodiment of the present invention, a communication path at the work site can be easily established, and the biological information and the like of the worker can be managed. Therefore, in an underground mall, indoor work area, construction site, etc., workers can be managed only for a specific period (time) without existing facilities. In addition, the location of the worker and the management of the physical condition can be performed at a remote location in a room, a closed space, a disaster site, or the like where radio waves from the satellite cannot be received.
Even if the state / location management of the worker is not performed, if the worker management communication system of the present invention is possessed, communication means can be secured in a tunnel without communication means, and various infrastructures can be secured. Application to is also possible.

  In the above embodiment, the base station B is installed outside the work site (passage entrance), and the portable relay device R is installed inside the work site. Is not limited to these. For example, one portable relay device R may be installed in a rest area provided outside the work site. In addition, although connected to the worker management device C installed at a location remote from the work site via the base station B (1), the worker management device C is installed inside and / or outside the work site. You may make it do. In this case, one of the portable relay devices R may be directly connected to the worker management device C without going through the public network P. Therefore, it is not necessary to install the base station B having a function of connecting to the public network P.

  In the above-described embodiment, the positioning of the mobile terminal device T inside the work site has been described with the reference position being the base station B, but may be any position. For example, it may be a rest area for workers. Since the mobile terminal device T starts positioning when the power is turned on, the meaning of setting the reference position as the base station is that the power is turned on in the vicinity of the base station B, just in case. It is. The reason why the base station B or the rest area is set as the reference position is to facilitate management by the worker management apparatus C. Therefore, “any position” may mean any position that can be managed by the worker management apparatus C.

  Moreover, although the said embodiment demonstrated the portable terminal device T and the biological information measuring device S as a different thing, it is good also as an integrated apparatus. Further, the portable terminal device T may have only a communication function that does not have a positioning function, and the biological information measuring device S may incorporate a dynamic sensor having a positioning function together with other sensors.

Further, in the above-described embodiment, the explanation has been made assuming the place where the existing communication equipment is not laid inside the work site, but when the existing communication equipment is laid down, it is broken. The worker management communication system can also be used as a temporary communication means.
Further, even when the existing communication equipment is operating normally, it is possible to operate as a closed communication means by using the worker management communication system, which is useful from the viewpoint of security of worker management. .
Further, the communication technology of the portable relay device R is not limited to the above-described embodiment, but may be communicated using a technology called ad hoc communication or a wireless LAN.

  In the above-described embodiment, the portable relay device R and the base station B are described as different from each other. However, a computer having a function of the greatest common divisor of both may be used. In this case, the same function may be realized by connecting a communication device including an antenna or the like to a personal computer such as a notebook personal computer equipped with a communication relay program for executing the relay processing. Moreover, you may comprise as an operator management communication apparatus provided with each function of the portable relay apparatus R, the base station B, and the portable terminal device T in the greatest common denominator. That is, in this case, the user installs the same worker management communication device as a base station at the work site, and appropriately installs the worker management communication device as a portable relay device inside the work site, thereby enabling communication. A route will be established.

In the above-described embodiment, the work site where the work area W is formed in the internal space that has passed through the crank-shaped passage has been described as an example. Means that the passage cannot be secured for the work area W.
Further, the biological information measuring device S or the portable terminal device T worn by the worker may be combined with an image acquisition device, an environment measuring device, or the like that secures an interface, and biological information, an image, and environmental data may be added. Good. Environmental data includes temperature and oxygen concentration.

Further, the portable relay device R may be provided with positioning means to measure the installation location. In other words, the plurality of portable relay devices R installed in the work area may be turned on so that the plurality of portable relay devices R perform positioning. Further, the base station B or the worker management device C may receive positioning information from a plurality of portable relay devices R, calculate an average of these positioning information, and use it as positioning information.
Furthermore, every time the worker moves to the work area, the mobile terminal device T may perform positioning, and the positioning information obtained each time may be accumulated and averaged.

It is a conceptual diagram explaining the concept of the worker management communication system of embodiment of this invention. It is a block diagram explaining the structure of the worker management communication system of embodiment of this invention. It is a figure which shows an example of the positional information table of a portable terminal device. It is a figure which shows an example of a base station connection destination table. It is a figure which shows an example of the connection destination table of a portable terminal device. It is a figure which shows an example of the biometric information table of the worker O (n). It is a figure which shows an example of a worker basic information table. It is a figure which shows an example of a base station position information table. It is a figure which shows an example of the time card table of the worker O (n). It is a flowchart explaining a series of processes from power-on of a portable relay apparatus to off. It is a flowchart explaining the relay data transfer process of a portable relay apparatus. It is a flowchart explaining the communication process of a portable terminal device. It is a flowchart explaining the communication process of a portable terminal device. It is a flowchart explaining the biometric information transfer process of a portable terminal device. It is a flowchart explaining the biometric information measurement process of a biometric information measuring device. It is a flowchart explaining the relay process of a base station. It is a flowchart explaining the management process of a worker management apparatus.

Explanation of symbols

B base station C worker management device P public network R portable relay device S biological information measuring device T portable terminal device 17 wireless communication means 34 wireless communication means

Claims (7)

It is a worker management communication system that establishes a communication path between a worker working inside a work site and a manager who manages the work site, and manages the workers inside the work site according to the communication path. And
A base station installed at a location that can be identified relative to the inside of the work site;
A portable relay device installed inside a work site so as to form at least one communication path from the base station;
When located in a range where communication with the base station or the portable relay device is possible, communication connection is established with either of them, and communication is possible via the base station along the formed communication path. A portable terminal device that is held by an operator while positioning relative to the reference position, and that identifies the position inside his / her work site based on the positioning result;
A worker management communication system characterized by comprising: It is a worker management communication system that establishes a communication path between a worker working inside a work site and a manager who manages the work site, and manages the workers inside the work site according to the communication path. And
A base station installed at a location that can be identified relative to the inside of the work site;
A portable relay device installed inside the work site while positioning relative to an arbitrary reference position so as to form at least one communication path from the base station;
When it is located in a range where it can communicate with the base station or the portable relay device, it communicates with either of them and can communicate via the base station along the formed communication path. A portable terminal device whose position in its own work site is specified from the position of the base station or the portable relay device that is,
A worker management communication system characterized by comprising: Used in a worker management communication system that establishes a communication path between a worker who works inside the work site and a manager who manages the work site, and manages the workers inside the work site according to the communication path. A portable relay device for establishing the communication path,
It is installed inside the work site so as to form at least one communication path from a base station installed in a place where the relative position to the inside of the work site can be specified,
When the portable terminal device, which is carried by the worker while measuring the relative position with respect to an arbitrary reference position and identifies the position inside his / her work site based on the positioning result, is located in a communicable range, Having a configuration for establishing a communication path of the mobile terminal device;
A portable relay device characterized by Used in a worker management communication system that establishes a communication path between a worker who works inside the work site and a manager who manages the work site, and manages the workers inside the work site according to the communication path. A portable terminal device that is carried by an operator and forms a part of a communication path,
A base station installed in a place where a relative position can be specified with respect to the inside of the work site, or a portable type installed in the work site so as to form at least one communication path from the base station When located in a range where communication with the relay device is possible,
It is connected to any of them, and it is possible to communicate via the base station along the formed communication path, and it is possessed by the worker while measuring the relative position with respect to any reference position, and own Having a configuration that identifies the position inside the work site from the positioning results;
The portable terminal device characterized by this. Communication means for establishing a communication path between the base station, the portable relay device and / or the mobile terminal device;
Positioning means for positioning a position relative to an arbitrary reference position based on a moving distance and a moving direction;
The mobile terminal device according to claim 4, further comprising: A worker management device that is used in the worker management communication system according to claim 1 or 2 and manages information about a worker transferred on the communication path,
Managing the biological information of the worker, which is measured by biological information measuring means attached to the body of the worker and transferred along the communication path via the portable terminal device;
A worker management device characterized by In order to process the portable relay device according to claim 3 or 4 as a computer, a communication connection is established between the base station, the portable relay device or between the mobile terminal device and itself, Having configured a communication path for relaying,
A communication relay program characterized by

Images