JP2016126389A - Work assist terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work assist terminal capable of recording or managing whether an operator has completed work in a work area and inhibiting the operator from approaching an entry inhibition area.SOLUTION: A work assist terminal 3 is carried by an operator who works in a work area, and receives an identification signal of a wireless transmitter 1 (wireless tag) disposed in the work area and an identification signal of the wireless transmitter 1 (inhibition tag) disposed in an entry inhibition area. The work assist terminal 3 preliminarily stores as work area information a work time designated for each wireless tag 1. On receipt of the identification signal of the wireless tag 1, the work assist terminal accumulates a receiving time of the identification signal in relation to each wireless tag 1. When the cumulative time exceeds the work time designated in association with the corresponding wireless tag 1, the work assist terminal decides that work has been completed in the work area associated with the corresponding wireless tag 1. On receipt of the identification signal of the inhibition tag 1, the work assist terminal 3 outputs an alarm to the operator.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a work support terminal carried by a worker who works in a work area.

  In operations such as building management, workers may regularly perform periodic inspection work on the site of the company or inside the building as a target facility. Such work includes various tasks such as equipment inspection, patrol and cleaning. In the following, the contents of the work will be described by taking the cleaning work as an example.

  In the cleaning work, a worker circulates a cleaning area (working area) for cleaning in the target facility regularly or irregularly in a predetermined order, and performs cleaning in each cleaning area. Whether or not the point to be cleaned has been cleaned without any omission is entered as a cleaning record by the worker. In such conventional cleaning work, whether or not the cleaning work is performed and how much cleaning is performed is self-reported by the worker, and a more reliable record is essentially desired.

  This applies not only to cleaning work but also to maintenance inspection work for equipment and the like. In the field of maintenance and inspection, a technique for supporting a worker with a portable terminal has been proposed (see, for example, Patent Document 1).

  Patent Document 1 discloses a portable terminal device that is possessed by a worker who performs inspection and maintenance of facilities and can reliably perform inspection and maintenance of facilities by supporting the work. This portable terminal device includes an interface device that receives an equipment ID issued from a wireless tag attached to the equipment. By storing the reception record of the wireless tag in the portable terminal device, it is possible to reliably record the location near the wireless tag.

Japanese Patent Laid-Open No. 10-222543

  However, it is not always effective as a work record only whether or not the signal of the wireless tag is received. For example, there is a possibility of misrecognition that the portable terminal device possessed by the worker just received a tag in an area where the worker is not currently working or just passed near the tag. In addition, there is a risk of intentionally leaving only a record unintentionally even though no work is being performed. When managing the cleaning work, it is necessary for the administrator to be able to grasp whether the work time and the work amount required according to the cleaning area are secured. In addition, it is necessary to make it possible to grasp that the worker who goes around the target facility does not enter the entry prohibition area, while it is necessary to record that the work has been performed appropriately.

  The present invention has been made in view of the above problems, and can record and manage whether or not the worker has completed the work in the work area, and suppresses the worker from approaching the entry prohibition area. An object of the present invention is to provide a work support terminal that can be used.

  The work support terminal of the present invention is a work support terminal carried by a worker who works in the work area, and is installed in the identification signal of the work radio transmitter installed in the work area and the entry prohibition area A short-range communication unit that receives an identification signal of a prohibited radio transmitter, a storage unit that stores in advance a work time set for each of the work radio transmitters as work area information, and an identification signal of the work radio transmitter , The cumulative processing unit that accumulates the reception time of the identification signal for each work radio transmitter, and the time accumulated in the cumulative processing unit is set to the work time set corresponding to the work radio transmitter. A work determination unit that determines that work has been completed in the work area corresponding to the work radio transmitter, and a warning that outputs an alarm to the worker when the identification signal of the prohibited radio transmitter is received. It comprises a determination unit.

  With this configuration, the work support terminal cumulatively transmits the identification signal of the work radio transmitter installed in the work area for a predetermined work time (work time set corresponding to the work radio transmitter). When received, it is determined that the work is completed in the work area. Thereby, it is possible to record / manage whether or not the worker has completed the work in the work area with the work support terminal. On the other hand, when receiving the identification signal of the prohibited wireless transmitter set in the entry prohibition area, the work support terminal outputs a warning to the worker. Thereby, it can suppress that a worker approaches an entry prohibition area.

  In the work support terminal of the present invention, the storage unit further stores a reception intensity threshold set for each work wireless transmitter as the work area information, and the accumulation processing unit stores the work wireless transmitter. If the reception intensity of the identification signal is equal to or greater than the reception intensity threshold set corresponding to the working radio transmitter, the reception time of the identification signal is accumulated, and the alarm determination unit If the reception intensity of the identification signal is equal to or greater than a predetermined prohibition intensity threshold, an alarm is output to the worker, and the prohibition intensity threshold is set to a value higher than the reception intensity threshold set for each work radio transmitter. May be.

  With this configuration, the work support terminal has an identification signal of the work radio transmitter installed in the work area equal to or greater than a predetermined reception intensity threshold (reception intensity threshold set corresponding to the work radio transmitter), and When cumulatively received during a predetermined work time, it is determined that the work is completed in the work area. In this way, by taking into account the reception strength of the identification signal from the work radio transmitter, it is possible to increase the determination accuracy of whether or not the worker has completed the work in the work area. On the other hand, when the work support terminal receives the identification signal of the prohibited radio transmitter set in the entry prohibition area at a predetermined prohibition strength threshold (a value higher than the reception strength threshold set for each work radio transmitter) or more, A warning is output to the worker. As described above, when the entry prohibition alarm is taken into consideration, the determination accuracy of whether or not the worker has entered the entry prohibition area is increased by taking into consideration that the reception intensity of the identification signal from the prohibited wireless transmitter is high. be able to.

  The work support system of the present invention receives the identification signal of the work radio transmitter installed in the work area if the signal strength is equal to or higher than the reception intensity threshold, and the identification signal of the prohibited radio transmitter installed in the entry prohibition area is received. A work support system comprising: a work support terminal that receives a signal strength that is equal to or greater than a prohibition strength threshold; and a management terminal that sets the reception strength threshold and the prohibition strength threshold. An operation unit in which a user inputs the reception intensity threshold for each of the work radio transmitters within a setting range, a reception intensity threshold for each of the work radio transmitters input from the operation unit, and a predetermined prohibited intensity threshold A work information generation unit that generates work area information; and a work instruction unit that transmits the work area information to the work support terminal, and the prohibition strength threshold is set for each work radio transmitter. Is set to a constant is higher than the received intensity threshold was.

  With this configuration, by using the management terminal, it is possible to easily set the reception intensity threshold for each work radio transmitter. Thereby, it is possible to record / manage whether or not the worker has completed the work in the work area with the work support terminal. In addition, by using the management terminal, it is possible to easily set the prohibited strength threshold of the prohibited wireless transmitter. Thereby, it can suppress that a worker approaches an entry prohibition area. In this case, since the prohibition strength threshold is set to a value higher than the reception strength threshold set for each work wireless transmitter, it is possible to increase the determination accuracy of whether or not the worker has entered the entry prohibition area.

  The method of the present invention is a method executed by a work support terminal carried by a worker who works in a work area, and the method uses work time set for each work area as work area information. A process of storing in advance, a process of receiving an identification signal of a work radio transmitter installed in the work area, a process of accumulating the reception time of the identification signal for each work radio transmitter, and the accumulation processing unit When the accumulated time exceeds the work time set corresponding to the work area, a process for determining that the work is completed in the work area and an identification signal of the prohibited radio transmitter installed in the entry prohibited area are received. And a process of outputting an alarm to the worker when receiving the identification signal of the prohibited wireless transmitter.

  This method also allows the work support terminal to record / manage whether or not the worker has completed work in the work area, as well as the work support terminal described above. Can be suppressed.

  The program of the present invention is a program executed by a work support terminal carried by a worker who works in a work area, the program being a computer, and the method being a work radio installed in the work area. A process of receiving a transmitter identification signal and an identification signal of a prohibited radio transmitter installed in an entry prohibition area, and a process of previously storing a work time set for each work radio transmitter as work area information And receiving the identification signal of the work radio transmitter, processing for accumulating the reception time of the identification signal for each work radio transmitter, and the time accumulated in the accumulation processing unit corresponds to the work radio transmitter. A process for determining that the work is completed in the work area corresponding to the work radio transmitter when the work time set in the above is exceeded, and an identification signal of the prohibited radio transmitter. When signal to execute a process of alarm output to the operator.

  This program also enables the work support terminal to record and manage whether or not the worker has completed work in the work area, as well as the work support terminal described above. Can be suppressed.

  According to the present invention, by using the work support terminal, it is possible to record / manage whether or not the worker has completed the work in the work area, and to prevent the worker from approaching the entry prohibition area. be able to.

It is a block diagram which shows the structure of the management terminal in embodiment of this invention. It is a block diagram which shows the structure of the work assistance terminal in embodiment of this invention. It is explanatory drawing of the cleaning area in embodiment of this invention. It is explanatory drawing of the prohibition area in embodiment of this invention. It is a figure which shows an example of the operation screen (operation screen in a cleaning area) of the management terminal in embodiment of this invention. It is a figure which shows an example of the operation screen (operation screen in a prohibition area) of the management terminal in embodiment of this invention. It is a flowchart which shows operation | movement (setting process of a reception intensity | strength threshold value and a prohibition intensity | strength threshold value) of the management terminal in embodiment of this invention. It is a sequence diagram which shows the flow of the process at the time of the cleaning operation in embodiment of this invention. It is a flowchart which shows operation | movement (support / management process of progress of cleaning work) of the work assistance terminal in embodiment of this invention.

  Hereinafter, a work support system according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a case of a work support system that supports and manages the progress of a work when a worker goes around the facility and performs a cleaning work is illustrated. In the following, the present invention will be described by taking a cleaning operation as an example, but the scope of the present invention is not limited thereto.

  The overall configuration of the work support system according to the present embodiment will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the management terminal, and FIG. 2 is a block diagram showing the configuration of the work support terminal. FIG. 3 is a diagram illustrating an example of a cleaning area, and FIG. 4 is a diagram illustrating an example of an entry prohibition area.

  As shown in FIGS. 1 to 4, the work support system of the present embodiment includes a wireless transmitter 1, a management terminal 2, and a work support terminal 3. The wireless transmitter 1 is a so-called wireless tag installed on a wall surface of a cleaning area (work area) or an entry prohibition area (see FIGS. 3 and 4). In the present embodiment, the wireless transmitter 1 has a work tag as a work wireless transmitter installed in a cleaning area where cleaning work is performed, and a prohibited wireless transmission installed in an entry prohibited area where entry is prohibited in the cleaning work. A prohibited tag as a machine is included. The wireless tag has a function of transmitting a beacon signal compliant with a predetermined short-range wireless communication standard such as Bluetooth (registered trademark) LE. The beacon signal includes identification information (such as an identification ID) for identifying the wireless tag. The beacon signal can also be called an identification signal. The beacon signal is transmitted periodically (for example, once every 10 seconds). As such a wireless tag, for example, an active type wireless tag that transmits radio waves by itself is used. Note that a passive type wireless tag may be used as the wireless tag.

  The management terminal 2 is a portable terminal (for example, a smartphone) possessed by an administrator (such as an employee of a cleaning company). As will be described later, the management terminal 2 performs near field communication with the wireless transmitter 1 in the cleaning area, and sets the range (reception intensity threshold) in which the work support terminal 3 can communicate with the wireless transmitter 1 as the wireless transmitter 1. It has a function to set for each. Further, the management terminal 2 has a function of communicating with the work support terminal 3 and transmitting information (work area information) of a communicable range set for each wireless transmitter 1 to the work support terminal 3. These functions can be realized by a program stored in a memory or the like of the management terminal 2. Note that the management terminal 2 is not limited to the example configured as a portable terminal, and is a short-range wireless communication function that can be carried and can receive signals from the wireless transmitter 1, a communication function with the work support terminal 3, and information processing. It may be composed of one or a plurality of devices that have functions and that can realize these functions by storing application programs.

  The work support terminal 3 is a portable terminal (for example, a smartphone) that is carried by a cleaning worker who is a worker. The cleaning staff goes around the facility with the work support terminal 3 and performs the cleaning work. As will be described later, the work support terminal 3 has a function of performing near field communication with the wireless transmitter 1 in the cleaning area and recording whether or not the cleaning work is performed for each cleaning area and how much cleaning is performed. ing. In addition, the work support terminal 3 communicates with the management terminal 2 and receives instructions regarding cleaning work (such as notification of cleaning start or end of cleaning, warning of work delay, etc.) and presents them to the cleaning staff, or the above-mentioned It has a function of transmitting to the management terminal 2 records relating to the cleaning work (whether or not the cleaning work has been performed and how much cleaning has been performed). These functions can be realized by a program stored in a memory or the like of the work support terminal 3.

  Next, the configuration of each part of the management terminal 2 will be described with reference to the drawings. As shown in FIG. 1, the management terminal 2 includes a short-range communication unit 20, a communication unit 21, a storage unit 22, a display unit 23, an operation unit 24, and a control unit 25.

  The near field communication unit 20 is a communication interface having a function of performing near field communication with the wireless transmitter 1 in the cleaning area. The short-range communication unit 20 receives a beacon signal transmitted from the wireless transmitter 1 within the cleaning area. For the short-range communication, for example, Bluetooth (registered trademark) is used. The communication unit 21 is a communication interface having a function of communicating with the work support terminal 3. The communication unit 21 communicates with the work support terminal 3 via, for example, a telephone network or the Internet network. The storage unit 22 is configured by a memory or the like. The storage unit 22 stores a program for realizing the function of the management terminal 2 and various data. The display unit 23 is configured by a liquid crystal display or the like. The operation unit 24 may be configured with an input key or the like, or may be configured with a touch panel. It can be said that the touch panel has both functions of the display unit 23 and the operation unit 24.

  The control unit 25 includes a reception intensity presentation unit 26, a work information generation unit 27, and a work instruction unit 28. The reception strength presentation unit 26 calculates an initial value of the reception strength threshold based on the reception signal strength of the beacon signal received from the wireless transmitter 1 at the current position in the cleaning area (hereinafter simply referred to as reception strength). The initial value of the received reception threshold value is output to the display unit 23. The reception strength threshold is a value set as a lower limit value of the reception signal strength for enabling the work support terminal 3 to receive the beacon signal of the wireless transmitter 1. In this case, the reception strength presenting unit 26 performs an operation for converting the reception strength from the wireless transmitter 1 at the current position in the cleaning area into a relative distance from the wireless transmitter 1, and based on the initial value of the reception strength threshold. The initial value of the relative distance communicable with the wireless transmitter 1 is calculated, and the calculated initial value of the relative distance is output to the display unit 23.

  For example, as shown in FIG. 5, when the reception intensity from the wireless transmitter 1 (work tag) installed in the cleaning area is −40 dBm, the reception intensity presentation unit 26 converts this reception intensity into a relative distance. Thus, the initial value of the relative distance communicable with the wireless transmitter 1 is displayed on the display unit 23. In the example of FIG. 5, the relative distance is displayed as a distance (relative distance) on the distance axis between “near” and “far”, and in this case, the relative distance communicable with the wireless transmitter 1 is displayed. As an initial value, a humanoid marker indicating the current distance value is displayed at a distance (relative distance) of about a quarter from the “near” side as a distance corresponding to the initial value −40 dBm of the reception intensity threshold. The process of converting the reception intensity into the relative distance can be performed with reference to a conversion table (reception intensity-relative distance table) prepared in advance, for example. Further, the received signal strength corresponding to this relative distance is displayed as “set signal strength”.

  The administrator (the user of the management terminal 2) inputs the setting value of the reception intensity threshold value by performing an operation of determining or changing the initial value of the reception intensity threshold value with the operation unit 24. In this case, the setting value of the reception intensity threshold value is input by performing an operation of confirming or changing the initial value of the relative distance output to the display unit 23. For example, in the example of the operation screen of FIG. 5, the initial value of the reception intensity threshold can be changed by dragging the reception intensity threshold mark M displayed as the relative distance to the left and right, and then the registration button B is pressed. By performing a touch operation, the changed value can be input as the setting value of the reception intensity threshold. For example, when it is desired to limit the range communicable with the wireless transmitter 1 to a range closer to the wireless transmitter 1, the reception strength threshold mark M is changed to the “near” side (left side in the figure). Further, when the initial value of the reception intensity threshold value is not changed and is determined as a set value as it is, the registration button B is displayed in the example of the operation screen of FIG. 5 (without dragging the reception intensity threshold mark M to the left and right). Touch operation.

  Note that when a drag operation of the reception intensity threshold mark M for changing the reception intensity threshold is performed, the value of the “set signal intensity” is changed to a corresponding value in conjunction with the drag operation. For example, when the reception intensity threshold (relative distance at which the work support terminal 3 can communicate with the wireless transmitter 1) is changed to the “close” side, the set signal intensity is changed to a higher value. Further, when the reception intensity threshold (relative distance at which the work support terminal 3 can communicate with the wireless transmitter 1) is changed to the “far” side, the set signal intensity is changed to a lower value. The setting signal strength set when the registration button B is operated is input as the setting value of the reception strength threshold.

  Further, as shown in FIG. 6, when the reception intensity from the wireless transmitter 1 (prohibition tag) installed in the entry prohibition area is −10 dBm, the reception intensity presentation unit 26 converts the reception intensity into a relative distance. And it displays on the display part 23 as an initial value of the relative distance communicable with the wireless transmitter 1. In the example of FIG. 6, the relative distance is displayed as a distance (relative distance) on the distance axis between “approach” and “close”. In this case, the relative distance communicable with the wireless transmitter 1 is displayed. As an initial value, a humanoid marker indicating the current distance value is displayed at a distance (relative distance) of about a quarter from the “near” side as a distance corresponding to the initial value of the reception intensity threshold. Also in this case, the process of converting the reception intensity into the relative distance can be performed with reference to, for example, a conversion table (reception intensity-relative distance table) prepared in advance.

  The administrator (the user of the management terminal 2) uses the operation unit 24 to confirm or change the initial value of the reception intensity threshold value, thereby inputting the set value of the reception intensity threshold value for each wireless transmitter 1 in advance. Within the setting range. Also in this case, the setting value of the reception intensity threshold value is input by performing an operation to confirm or change the initial value of the relative distance output to the display unit 23. For example, in the example of the operation screen of FIG. 6, the initial value of the reception intensity threshold value can be changed by dragging the reception intensity threshold mark M displayed as a relative distance. In the setting of the reception strength threshold (prohibition strength threshold) of the prohibition tag, the reception strength threshold mark M can be dragged only between the “near” side and the “approach” side (the side where the reception strength is increased). In the example of FIG. 6, a humanoid marker is displayed at the current distance value converted according to the current reception intensity. This is the initial value of the reception intensity threshold, but the mark M is dragged to the left side. In this state, the setting value of the reception intensity threshold is changed and input. The set signal intensity corresponding to the distance value of the mark M is −10 dBm, and this is a reception intensity threshold value. Thereafter, by touching the registration button B, the changed value can be input as the setting value of the reception intensity threshold. In addition, when the initial value of the reception intensity threshold value is fixed as it is without changing it, the registration button B is touched in the example of the operation screen of FIG. 5 (without dragging the reception intensity threshold mark M). To do.

  Note that when a drag operation of the reception intensity threshold mark M for changing the reception intensity threshold is performed, the value of the “set signal intensity” is changed to a corresponding value in conjunction with the drag operation. For example, when the reception intensity threshold (relative distance at which the work support terminal 3 can communicate with the wireless transmitter 1) is changed to the “approach” side, the set signal intensity is changed to a higher value. Further, when the reception intensity threshold (relative distance at which the work support terminal 3 can communicate with the wireless transmitter 1) is changed to the “near” side, the set signal intensity is changed to a lower value. The setting signal strength set when the registration button B is operated is input as the setting value of the reception strength threshold.

  For example, the size of the cleaning area usually varies from one cleaning area to another. In the present embodiment, when setting the work tag reception strength, the administrator holds the management terminal 2 at the end of the cleaning area (the place farthest from the wireless transmitter 1 (work tag)). The beacon signal from the wireless transmitter 1 (work tag) is received for a predetermined time (for example, 30 seconds), and the initial value of the reception intensity threshold value calculated from the average reception intensity is obtained. By confirming or changing this, a reception intensity threshold value (relative distance at which the work support terminal 3 can communicate with the wireless transmitter 1) according to the size of the cleaning area is set. Thereby, as shown in FIG. 3, according to the size of each cleaning area, the work support terminal 3 is connected to the wireless transmitter even at the end of the cleaning area (the place farthest from the wireless transmitter 1 (work tag)). A reception intensity threshold (relative distance at which the work support terminal 3 can communicate with the wireless transmitter 1) is set such that a beacon signal from 1 (work tag) can be received. For example, when the cleaning area is large, the reception intensity threshold is set low (relative distance at which communication with the wireless transmitter 1 (work tag) can be communicated) is set according to the size of the cleaning area. When the cleaning area is narrow, the reception intensity threshold is set high (relative distance communicable with the wireless transmitter 1 (work tag) is close) according to the narrowness of the cleaning area.

  In addition, in the entry prohibition area, there are objects (for example, safes) whose entry should be prohibited, and access to such objects must be suppressed. On the other hand, it is necessary to prevent false alarms by receiving the prohibited tag beacon signal by mistake even though the area has not been entered. Therefore, in this embodiment, when the reception intensity threshold value of the prohibition tag is set to a value higher than the reception intensity threshold value of the work tag, as shown in FIG. Only the beacon signal of the prohibited tag is received and alarmed, and the beacon signal of the prohibited tag is not received only by passing in the vicinity in the work.

  The work information generating unit 27 wirelessly transmits the set values of the reception intensity threshold values (the reception intensity threshold value of the cleaning area and the prohibited intensity threshold value of the prohibited area) of the wireless transmitter 1 input from the operation unit 24 as described above. Work area information associated with the identification information of the machine 1 is generated. The work instruction unit 28 transmits this work area information to the work support terminal 3. As will be described later, the work support terminal 3 performs a process of recording whether or not the cleaning work is performed for each cleaning area and how much cleaning is performed based on the work area information.

  In addition, the work finger information generation unit 27 displays on the display unit 23 when an operation for changing the setting value of the reception intensity threshold to a value higher than the initial value of the reception intensity threshold is performed on the operation tag 24 for the work tag. A warning may be output. If the setting value of the reception strength threshold is set to a value higher than the initial value, a beacon signal with a reception strength of about the initial value becomes less than the threshold and cannot be received, even in the cleaning area (depending on the location) This is because the work support terminal 3 may not be able to communicate with the wireless transmitter 1 (work tag).

  As will be described later, when the work support terminal 3 cumulatively receives a beacon signal from the wireless transmitter 1 (work tag) in the cleaning area for a predetermined work time at a set intensity (reception intensity threshold) or more, Consider working in the area. That is, it is determined that the work in the work area is completed because the work tag beacon signal stays in the work area for a predetermined time. The management terminal 2 is used in this preparation stage. The administrator uses the management terminal 2 in the cleaning area in advance (for example, when the wireless transmitter 1 is installed) to determine the signal strength (setting strength) and working time that can recognize the wireless transmitter 1 in advance. specify. These are associated as work area information by the work information generation unit 27.

  Further, the work information generation unit 27 receives an input for changing the setting value of the reception intensity threshold value to a value lower than the initial value of the reception intensity threshold value by a predetermined amount (predetermined allowable amount) or more with respect to the work tag. In such a case, a warning may be output to the display unit 23. If the setting value of the reception strength threshold is set to a value that is excessively lower than the initial value (a value that is lower than a predetermined amount, for example, a value that is lower than −20 dBm), the receivable range of the beacon signal is compared with the initial value. This is because the work support terminal 3 may erroneously communicate with the wireless transmitter 1 even though it is outside the work area because it spreads greatly.

  Next, the configuration of each part of the work support terminal 3 will be described with reference to the drawings. As illustrated in FIG. 2, the work support terminal 3 includes a short-range communication unit 30, a communication unit 31, a storage unit 32, a display unit 33, an operation unit 34, a control unit 35, and an action amount detection unit 36.

  The near field communication unit 30 is a communication interface having a function of performing near field communication with the wireless transmitter 1 in the cleaning area. The short-range communication unit 30 receives a beacon signal transmitted from the wireless transmitter 1 within the cleaning area. For the short-range communication, for example, Bluetooth (registered trademark) is used. The communication unit 31 is a communication interface having a function of communicating with the management terminal 2. The communication unit 31 communicates with the management terminal 2 via, for example, a telephone network or the Internet network. The storage unit 32 includes a memory or the like. The storage unit 32 stores a program for realizing the function of the work support terminal 3 and various data. For example, the storage unit 32 stores a work time (for example, 10 minutes) set for each cleaning area (for each wireless tag). The storage unit 32 stores a reception intensity threshold set for each cleaning area (for each wireless tag). The display unit 33 is configured by a liquid crystal display or the like. The operation unit 34 may be configured with an input key or the like, or may be configured with a touch panel. It can be said that the touch panel has both functions of the display unit 33 and the operation unit 34. The action amount detection unit 36 is configured by, for example, an acceleration sensor (pedometer) or the like, and has a function of measuring the action amount of the cleaner.

  The control unit 35 includes an accumulation processing unit 37, a work determination unit 38, and an alarm determination unit 39. The accumulation processing unit 37 performs a process of accumulating the time when the beacon signal transmitted from the wireless transmitter 1 is received at a reception intensity threshold value or more corresponding to the work area information. In other words, the accumulation processing unit 37 determines that the beacon signal is received if the reception intensity of the beacon signal from the wireless transmitter 1 (work tag) is equal to or higher than the reception intensity threshold set corresponding to the wireless transmitter 1 (work tag). Accumulate the reception time of. In this case, the accumulation processing unit 37 accumulates the reception time of the beacon signal for each wireless transmitter 1 (work tag). The work determination unit 38 determines whether or not the beacon signal transmitted from the wireless transmitter 1 (work tag) is cumulatively received for a predetermined work time (for example, 10 minutes) that is equal to or greater than the reception intensity threshold. I do. The work determination unit 38 determines that the cleaning work for the cleaning area has been completed when it is received cumulatively for a predetermined work time that is equal to or greater than the reception intensity threshold. That is, when the time accumulated by the accumulation processing unit 37 exceeds the work time set for the wireless transmitter 1 (for example, 10 minutes), the work determination unit 38 performs the cleaning work in the cleaning area corresponding to the wireless transmitter. Is determined to be complete. Information on the reception intensity threshold and the work time is included in the work area information transmitted from the management terminal 2.

  In the alarm determination unit 39, the wireless transmitter 1 is a “prohibited tag”, and the reception intensity of the beacon signal transmitted from the wireless transmitter 1 (prohibited tag) is a predetermined prohibited intensity threshold (reception intensity threshold of the prohibited tag). In the case of the above, an alarm output (abnormal output) is performed on the display unit 33. In other words, for a prohibited tag, an alarm is immediately issued if it is received at a level equal to or greater than the prohibited strength threshold without accumulating the reception time like a work tag. The prohibition tag is a tag installed in an area where no outside person such as a cleaning person is allowed to enter (prohibition area). The prohibition strength threshold is set to a value higher than the reception strength threshold of the wireless transmitter 1 (wireless tag) in the work area. As described above, when the warning determination unit 39 determines that the cleaner has entered the entry prohibition area, the display unit 33 outputs an abnormal output to the effect that “it is an entry prohibition area”. In that case, the alarm determination unit 39 performs a process of notifying the management terminal 2 that an abnormal output has been performed (the determination that the cleaner has entered the entry prohibition area).

  The operation of the work support system configured as described above will be described with reference to the drawings.

  First, the operation of the management terminal 2 when setting the reception intensity threshold will be described with reference to FIG. FIG. 7 is a flowchart showing the operation of the management terminal 2 in the setting mode. When setting the reception intensity threshold, the management terminal 2 is set to the setting mode. As shown in FIG. 7, when setting the reception intensity threshold using the management terminal 2, the administrator operates the operation unit 24 of the management terminal 2 to receive an area (cleaning area or entry prohibition area). The identification information (identification ID) of the wireless transmitter 1 (wireless tag) installed in () is designated (S1). In this case, for example, as shown in FIG. 5, when “001111” is input as the identification ID of the wireless tag, the location name “1F southwestern room” of the area stored in advance may be displayed.

  Next, the administrator carries the management terminal 2 and receives a beacon signal from the wireless transmitter 1 at the end of the cleaning area. When the management terminal 2 receives a beacon signal from the corresponding wireless transmitter 1, that is, when the identification information included in the received beacon signal is that of the wireless transmitter 1 specified in step S1. (S2), it is determined whether or not the wireless transmitter 1 is a prohibited tag (S3). In the example of FIG. 5, whether a work tag or a prohibited tag is input by a radio button for selecting “work place tag” or “entrance prohibited tag” displayed at the top of the screen. If the wireless transmitter 1 is not a prohibited tag, that is, if it is a wireless tag in a cleaning area, the reception intensity for a predetermined inspection time (for example, 30 seconds) is accumulated to obtain an average reception intensity within the inspection time. Is calculated (S4).

  When the calculated average reception strength is within a predetermined setting range (within a range lower than the setting range of the reception strength of the prohibited tag (range from “approaching” to “near”)) (S5), The average reception intensity is converted into a distance, and a relative distance corresponding to the average reception intensity is calculated (S6). Then, the calculated relative distance is displayed on the relative distance axis as an initial value of the reception intensity threshold value (S7).

  Next, the management terminal 2 determines whether or not an operation for changing the initial value of the reception intensity threshold (drag operation of the reception intensity threshold mark M) has been performed (S8). When an operation for changing the initial value of the reception intensity threshold is performed, the setting value of the reception intensity threshold is changed to that value (S9). When a definite input (touch operation of the registration button B) is performed (S10), the value is registered as a setting value of the reception intensity threshold value, and identification information (identification ID) of the corresponding wireless transmitter 1 (wireless tag) And stored as work area information (S11).

  On the other hand, when an operation for changing the initial value of the reception strength threshold is not performed, when a confirmation input (touch operation of the registration button B) is performed (S10), the initial value of the reception strength threshold is used as it is. It registers as a set value of the threshold value, and stores it as work area information in association with the identification information (identification ID) of the corresponding wireless transmitter 1 (wireless tag) (S11).

  In step S3, if the wireless transmitter 1 is a prohibited tag, the reception strength at which the prohibited tag can be received is calculated or determined within the settable range of the prohibited tag reception strength. Then, the received intensity is converted into a distance, a relative distance corresponding to the average received intensity is calculated, and the calculated relative distance is displayed on the relative distance axis as an initial value of the prohibited intensity threshold (S12). For example, a humanoid marker indicating the current distance value is displayed at a distance (relative distance) of about a quarter from the “near” side on the distance axis between “approach” and “near” (see FIG. 6).

  When the operation for changing the initial value of the prohibited strength threshold (drag operation of the received strength threshold mark M) is performed (S13), the management terminal 2 calculates the received strength corresponding to the distance (S14), It is registered as a set value of the prohibition strength threshold value, and stored in the work area information in association with the identification information (identification ID) of the corresponding wireless transmitter 1 (prohibition tag) (S11). In FIG. 6, the setting value of the prohibition intensity threshold is changed by dragging the reception intensity threshold mark M leftward from the position of the initial value that is the position of the humanoid marker. In this way, the reception intensity threshold value of the wireless transmitter 1 is stored in the work area information.

  Next, the operations of the management terminal 2 and the work support terminal 3 during the cleaning work will be described with reference to FIG. FIG. 8 is a sequence diagram showing the flow of processing during the cleaning operation. As shown in FIG. 8, when starting the cleaning work, a cleaning instruction signal is transmitted from the management terminal 2 to the work support terminal 3 (S20). This cleaning instruction signal includes work area information. When the work support terminal 3 receives the work area information (S21), it waits for an operation to start cleaning. When the cleaning staff operates the work support terminal 3 to perform an operation for starting cleaning (for example, a touch operation of the cleaning start button) (S22), a cleaning start signal is transmitted from the work support terminal 3 to the management terminal 2 (S23). . When receiving the cleaning management signal, the management terminal 2 stores information indicating the start of cleaning in the storage unit 22 (S24).

  The cleaning staff sequentially performs the cleaning work while traveling around the facility while holding the work support terminal 3. For example, when performing a cleaning operation in a certain cleaning area, the work support terminal 3 receives a beacon signal from the wireless transmitter 1 (work tag) installed in the cleaning area (S25). In the work support terminal 3, the reception intensity of the beacon signal received from the wireless transmitter 1 (work tag) is the reception intensity threshold value of the wireless transmitter 1 (the reception intensity threshold value set by the management terminal 2; included in the work area information). If this is the case, the amount of action of the cleaner is measured (S26). And when the accumulated time which received the beacon signal becomes more than the work time (for example, 10 minutes included in work area information) defined for every work area (for every wireless tag), the cleaning work of the cleaning area is completed. Then, the action amount and the current time stored so far are stored as history information of the cleaning work (S27).

  When the cleaning work for the cleaning area is completed, the cleaner moves to the next cleaning area. The work support terminal 3 receives a beacon signal from the wireless transmitter 1 (work tag) installed in the cleaning area (S28). Thereafter, the above steps S25 to S27 are repeated until the cleaning work for all the cleaning areas in charge is completed.

  When the cleaning work for all the cleaning areas is completed, the cleaning staff operates the work support terminal 3 to perform a cleaning end operation (for example, a touch operation of the cleaning end button) (S29). Then, a cleaning end signal and work history information are transmitted from the work support terminal 3 to the management terminal 2 (S30). The management terminal 2 stores information indicating the end of cleaning and work history information in the storage unit 22 (S31). Then, the management terminal 2 compares the action amount of each area with a reference action amount (for example, 200 steps, a preset value) (S32), and when the action amount does not reach the reference action amount, The administrator is notified that there is an abnormality (S33).

  Next, with reference to FIG. 9, the operation of the work support terminal 3 during the cleaning work will be described in detail. FIG. 9 is a flowchart showing the operation of the work support terminal 3 when a certain cleaning area is being cleaned. As illustrated in FIG. 9, when the work support terminal 3 receives a beacon signal from the wireless transmitter 1 installed in the cleaning area, the wireless transmitter 1 recognizes the “prohibition tag” from the identification information included in the beacon signal. Is determined (S40). The identification of the wireless transmitter 1 and the distinction between the work tag and the prohibition tag are stored in the work area information.

  When it is determined that the tag is not a prohibition tag, the work support terminal 3 determines that the reception intensity of the beacon signal received from the wireless transmitter 1 (work tag) is the reception intensity threshold (management terminal 2) of the wireless transmitter 1 (work tag). It is determined whether or not it is equal to or greater than the reception intensity threshold value set in (included in work area information) (S41). When the reception intensity of the beacon signal received from the wireless transmitter 1 (work tag) is equal to or higher than the reception intensity threshold, the cleaning staff performs a cancel operation (for example, a cancel button touch operation) on the operation unit 34 of the work support terminal 3. ) Is determined (S42). The canceling operation is performed when a beacon signal of the wireless transmitter 1 that is not desired by the cleaner is received.

  If the cancel operation is not performed, the time during which the reception intensity of the beacon signal received from the wireless transmitter 1 (work tag) is equal to or greater than the reception intensity threshold is accumulated (S43), and the detected amount of action of the cleaner is determined. Add (S44). Steps S40 to S44 are repeated until the accumulated time reaches the working time. When the accumulated time is equal to or longer than a predetermined work time (for example, 10 minutes) (S45), it is determined that the cleaning work for the cleaning area is completed (S46), and is associated with the identification information of the wireless transmitter 1. The current time and the amount of action are stored as cleaning work history information (S47).

  When the cancel operation is performed, the time (accumulated time) in which the reception intensity of the beacon signal received from the wireless transmitter 1 is equal to or greater than the reception intensity threshold is cleared (S48).

  On the other hand, if it is determined in the first step S40 that the tag is a prohibited tag, the reception strength threshold value (working area information) corresponding to the prohibited tag is the reception strength of the beacon signal received from the wireless transmitter 1 (prohibited tag). (S49), if it is equal to or greater than the reception intensity threshold, an abnormal output indicating "is an entry prohibited area" is made on the display unit 33 (S50). Then, the management terminal 2 is notified that the abnormal output has been performed (the cleaning has been determined to have entered the entry prohibition area) (S51).

  In such a work support system of the present embodiment, the work support terminal sets the identification signal of the work radio transmitter installed in the work area for a predetermined work time (corresponding to the work radio transmitter) If it is received cumulatively during (working time), it is determined that the work is completed in the work area. Thereby, it is possible to record / manage whether or not the worker has completed the work in the work area with the work support terminal. On the other hand, when receiving the identification signal of the prohibited wireless transmitter set in the entry prohibition area, the work support terminal outputs a warning to the worker without accumulating the reception time. Thereby, it can suppress that a worker approaches an entry prohibition area. In this case, when the identification signal of the prohibited radio transmitter set in the entry prohibition area is received, a warning is output immediately without accumulating the reception time, so even a short time fraud in the entry prohibition area should be detected. Can do.

  In the present embodiment, the work support terminal uses an identification signal of the work radio transmitter installed in the work area as a predetermined reception intensity threshold value (reception intensity threshold set corresponding to the work radio transmitter). As described above, when cumulative reception is performed for a predetermined work time, it is determined that the work is completed in the work area. In this way, by taking into account the reception strength of the identification signal from the work radio transmitter, it is possible to increase the determination accuracy of whether or not the worker has completed the work in the work area. On the other hand, when the work support terminal receives the identification signal of the prohibited radio transmitter set in the entry prohibition area at a predetermined prohibition strength threshold (a value higher than the reception strength threshold set for each work radio transmitter) or more, A warning is output to the worker. In this way, by taking into account the reception strength of the identification signal from the prohibited wireless transmitter, it is possible to increase the accuracy of determining whether or not the worker has entered the entry prohibited area. Thus, for example, when a worker enters the prohibited entry area, this is correctly determined. On the other hand, the worker is only allowed to pass near the prohibited entry area (without entering the prohibited entry area). It is possible to prevent an erroneous determination that the user has entered the area.

  Moreover, in this Embodiment, the reception intensity | strength threshold value for every work radio | wireless transmitter can be easily set by using a management terminal. Thereby, it is possible to record / manage whether or not the worker has completed the work in the work area with the work support terminal. In addition, by using the management terminal, it is possible to easily set the prohibited strength threshold of the prohibited wireless transmitter. Thereby, it can suppress that a worker approaches an entry prohibition area. In this case, since the prohibition strength threshold is set to a value higher than the reception strength threshold set for each work wireless transmitter, it is possible to increase the determination accuracy of whether or not the worker has entered the entry prohibition area.

  The embodiments of the present invention have been described above by way of example, but the scope of the present invention is not limited to these embodiments, and can be changed or modified according to the purpose within the scope of the claims. is there.

  As described above, the work support terminal according to the present invention can record and manage whether or not the worker has completed the work in the work area, and suppresses the worker from approaching the entry prohibition area. It is useful because it can be used for periodic inspection work (for example, equipment inspection, patrol, cleaning, etc.) in which workers regularly visit the facility.

DESCRIPTION OF SYMBOLS 1 Wireless transmitter 2 Management terminal 3 Work support terminal 20 Short-distance communication part 21 Communication part 22 Storage part 23 Display part 24 Operation part 25 Control part 26 Reception intensity | strength presentation part 27 Work information generation part 28 Work instruction | indication part 30 Short-distance communication part 31 Communication Unit 32 Storage Unit 33 Display Unit 34 Operation Unit 35 Control Unit 36 Action Quantity Detection Unit 37 Cumulative Processing Unit 38 Work Determination Unit 39 Alarm Determination Unit

Claims (5)

A work support terminal carried by a worker working in a work area,
A short-range communication unit that receives the identification signal of the work radio transmitter installed in the work area and the identification signal of the prohibited radio transmitter installed in the entry prohibition area;
As a work area information, a storage unit that stores in advance a work time set for each work radio transmitter,
Upon receiving the identification signal of the work radio transmitter, an accumulation processing unit that accumulates the reception time of the identification signal for each work radio transmitter;
A work determination unit that determines that work is completed in a work area corresponding to the work radio transmitter when the time accumulated in the accumulation processing unit exceeds the work time set corresponding to the work radio transmitter;
Upon receiving the identification signal of the prohibited wireless transmitter, an alarm determination unit that outputs an alarm to the worker;
A work support terminal comprising: The storage unit further stores, as the work area information, a reception intensity threshold set for each work radio transmitter,
The accumulation processing unit accumulates the reception time of the identification signal if the reception intensity of the identification signal of the work radio transmitter is equal to or greater than the reception intensity threshold set corresponding to the work radio transmitter,
If the reception strength of the identification signal of the prohibited wireless transmitter is equal to or higher than a predetermined prohibited strength threshold, the warning determination unit outputs a warning to the worker,
The work support terminal according to claim 1, wherein the prohibition strength threshold is set to a value higher than a reception strength threshold set for each work radio transmitter. If the identification signal of the work radio transmitter installed in the work area is greater than or equal to the reception strength threshold, the signal is received. If the identification signal of the prohibited radio transmitter installed in the entry prohibition area is greater than or equal to the inhibition strength threshold A work support system comprising: a work support terminal for receiving, and a management terminal for setting the reception intensity threshold and the prohibition intensity threshold;
The management terminal
An operation unit for a user of the management terminal to input the reception intensity threshold value for each work radio transmitter within a set range;
A work information generation unit that generates, as work area information, a reception intensity threshold value and a predetermined prohibition intensity threshold value for each of the work radio transmitters input from the operation unit;
A work instruction unit for transmitting the work area information to the work support terminal;
With
The work support system, wherein the prohibition strength threshold is set to a value higher than a reception strength threshold set for each work wireless transmitter. A method executed by a work support terminal carried by a worker working in a work area,
The method
As work area information, a process for storing in advance a work time set for each work area;
A process of receiving an identification signal of a work radio transmitter installed in the work area;
A process of accumulating the reception time of the identification signal for each work radio transmitter;
A process for determining that the work is completed in the work area when the time accumulated in the accumulation processing unit exceeds the work time set corresponding to the work area;
A process of receiving an identification signal of a prohibited wireless transmitter installed in the prohibited entry area;
When receiving the identification signal of the prohibited wireless transmitter, processing to output a warning to the worker,
A method comprising the steps of: A program executed on a work support terminal carried by a worker working in a work area,
The program is stored in a computer.
The method
Processing for receiving the identification signal of the work radio transmitter installed in the work area and the identification signal of the prohibited radio transmitter installed in the entry prohibition area;
As work area information, a process for storing in advance a work time set for each work radio transmitter;
When receiving the identification signal of the work radio transmitter, a process of accumulating the reception time of the identification signal for each work radio transmitter;
A process of determining that work is completed in a work area corresponding to the work radio transmitter when the time accumulated in the accumulation processing unit exceeds the work time set corresponding to the work radio transmitter;
When receiving the identification signal of the prohibited wireless transmitter, processing to output a warning to the worker,
A program characterized by having executed.

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