JP2018143476A - Non-safety rope detection device and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-safety rope detection device that eliminates the need for installing a large-scaled system again even if a work area is changed in a short period, and a worker of a non-safety rope state, easily and reliably.SOLUTION: A non-safety rope detection device 10 is provided in which the short-range communication Ce with a use partition determination device (NFC tag) 20 detachably attached to a work area of the footing SF is established by a transmitting and receiving unit of short-range wireless communication driven by a battery power source, and thereby the entry of the worker WM to a safety rope use partition (high-place work areas) is detected, and further, the short-range communication Cs with a non-safety rope circumstantial decision device (NFC tag) 30 attached to a hook f of a safety rope tw by the patch-style adhesion is established, and thereby a non-safety rope state of the worker WM is detected. An electronic voice for notifying the entry is output when detecting the entry of the worker WM to the safety rope use partition, and further, the electronic voice of warning the non-safety rope state is output when detecting the non-safety rope state of the worker WM.SELECTED DRAWING: Figure 1

Description

  Embodiments of the present invention relate to, for example, an apparatus for detecting a torso rope for detecting that a lanyard (a torso) of a safety belt worn by an aerial worker is unused (an untowed rope).

  A safety belt is used as a safety measure for workers when working at high places on temporary scaffolds or temporary stages, or at high places at openings where various equipment and materials are carried in and out. Workers wear safety belts, and the lanyard hooks on the safety belts are hung on solid handrails, etc., so that they can be prevented from becoming a serious disaster in the event of a worker's fall. doing.

  However, in a state where the worker does not hang the hook of the torso of the safety belt or forgets to hang it (the unwound state), the safety of the worker cannot be ensured.

  Therefore, conventionally, it is monitored whether or not the hook of the torso of the safety belt when the worker is in an altitude work area or a dangerous area is hooked, and if the hook is not hooked, a warning is issued. Safety belt usage monitoring systems are being considered.

JP 2009-165517 A JP 2014-004006 A JP 2014-150960 A JP2015-204997A

  In the conventional safety belt usage monitoring system, a plurality of transmission / reception devices are installed around a high-altitude work area to be monitored, or information obtained by the transmission / reception devices is collected outside the temporary scaffolding or at the entrance / exit. Since it is necessary to install a management computer for monitoring the usage status of the safety belt in the area, the entire system becomes large.

  For example, if a large-scale structure is constructed or repaired over a long period of time, such a system will remain temporarily installed over a long period of time. There is no fault for a long time. However, for example, when working while moving a place including a scaffold in a short construction period, it is necessary to re-install the entire system every time the place is moved, and there is a problem that the introduction of such a system is not realistic. .

  The problem to be solved by the present invention is that even if the work area changes in a short period of time, it is possible to easily and surely inform the operator of the state of the uncased rope without having to re-install a large-scale system. An object of the present invention is to provide an unwinding rope detection device and method therefor.

  The unfolded rope detection device of the embodiment includes a battery power source, an external first communication device that is driven by the battery power source and is attached to a section to be detected by the unfolded rope, and a preset first range. A first communication means for performing wireless communication within the second range, and a second communication unit that is driven by the battery power source and that performs wireless communication within a second range set in advance with an external second communication device attached to the rope in the safety belt. When communication with the second communication device is established by the second communication device in a state where communication with the first communication device is established with the communication device and the first communication device, And a warp rope warning means for warning the rope state.

The external view which shows the whole structure of the unfolded rope detection system in the work site using the unfolded rope detection apparatus 10 of embodiment. The figure which extracts and shows the unwind rope detection apparatus 10, the use division determination apparatus 20, and the unwind rope situation judgment apparatus 30 of the said unwind rope detection system. FIG. 2 is a block diagram showing a configuration of an electronic circuit of the unwind rope detection device 10. The flowchart which shows the unwind rope detection process of the said unwind rope detector.

  Hereinafter, the unwound rope detection device of an embodiment is explained with reference to drawings.

  FIG. 1 is an external view showing an overall configuration of a unwind rope detection system at a work site using the unwind rope detection apparatus 10 of the embodiment.

  FIG. 2 shows the unwound rope detection device 10, the use zone determination device (first communication device) 20, and the unwind rope situation determination device (second communication device) 30 extracted from the unwind rope detection system. FIG.

  The unwind rope detection system includes a unwind rope detection device 10, a use section determination device 20, and an unwind rope situation determination device 30.

  The unwound rope detection device 10 is attached to a safety belt SB that is used by a worker WM fixed to the trunk with a belt, and has a power supply function and a communication function (transmission / reception function with an NFC tag such as an RFID tag (first- Second communication means)), having a voice output function.

  The use section determining device 20 is a locking device for a single pipe or a master rope of a handrail of a scaffold SF that is a section (a use section of a rope) that requires the use of a torso (lanyard) tw of the safety belt SB. And a communication response function (an NFC tag 21 such as an RFID tag) with respect to the unfolded rope detection device 10.

  The unbottleneck condition judging device 30 is attached to the base of the hook f at the tip of the torso (lanyard) tw of the safety belt SB by a strong patch type adhesive or the like, and communicates with the unbottlenose detector 10. It has a response function (NFC tag 31 such as an RFID tag).

  When the short-distance communication Ce is established by the callback with the use section determining device 20 using the communication function (first communication means), the no-bottle rope detection device 10 establishes the torso rope ( Lanyard) It is detected that the vehicle has entered a section that requires the use of tw (a section using the rope). Here, the range (first range) of the torso rope use section is set according to the communicable distance between the unwind rope detecting device 10 and the use section determining device 20, and is set to a range of a radius of 2 m, for example.

  Further, the unfolded rope detection device 10 establishes the short-range communication Cs by callback with the unfolded rope situation determination device 30 by using a communication function (second communication means), so that the tow rope tw It is detected that the hook f is in the vicinity of the safety belt SB and the torso tw is not used, that is, the torso is in a no-tuna state. Here, the range (second range) in which the unfolded rope state is detected is set by the communicable distance between the unfolded rope detection device 10 and the unfolded rope situation determination device 30, and the tow rope tw is wound around the winding rope tw. It is set according to the distance (for example, 50 cm) to the hook f in a state of being completely wound around the take-up machine Rw.

  FIG. 3 is a block diagram showing the configuration of the electronic circuit of the unfolded rope detection device 10.

  The electronic circuit of the unfolded rope detection device 10 is constituted by, for example, a one-chip semiconductor integrated circuit IC, and includes a control unit 11, a memory 12, a transmission / reception unit (first / second communication means) 13, an audio output unit 14, and an input. A unit 15 is provided and driven by a battery power source 16.

  The control unit 11 has a timer function T, and controls the operation of each unit in accordance with the involute rope detection program 12 a stored in the memory 12. In the memory 12, in addition to the data of the unwind rope detection program 12a, the memory 12 is used for reliably determining that the worker WM has entered the rope use section (first time passage determination means). After determining the entry of the section entry time <T1> 12b and the entry of the worker WM into the section of use of the torso, it is reliably determined that the worker WM is in the state of the no trunk (second time passage determination means). The data of the unfolded rope time <T2> 12c to be stored is stored.

  Based on the voltage supplied from the battery power supply 16, the transmission / reception unit 13 includes a short-range communication Ce (first communication means) with the NFC tag 21 of the use section determination device 20 and the unwind rope status determination device 30. Short-range communication Cs (second communication means) with the NFC tag 31 is performed.

  The voice output unit 14 repeatedly outputs an electronic voice (for example, “piyopiyo”) for notifying the invasion of the section in a state where the invasion of the worker WM into the torso use section is confirmed according to the control of the control unit 11 (section An intrusion notification means), and an electronic voice (for example, “This is a nobody rope. Torso warning means). In addition, the electronic sound for informing the division intrusion and the electronic sound for warning the unfolded rope may be output in a superimposed manner or may be switched and output.

  The input unit 15 includes two changeover switches for switching, for example, the data of the use section intrusion time <T1> and the data of the unfolded rope time <T2> in two stages.

  In the unstructured rope detection device 10 configured as described above, the control unit 11 controls the operation of each part in accordance with the instructions described in the unfolded line detection program 12a, and the software and hardware cooperate with each other. By operating, the unfolded rope detection process including various functions as described in the following operation description is realized.

  Next, the operation of the unstructured rope detection device 10 having the above-described configuration will be described.

  FIG. 4 is a flowchart showing the unwind rope detection process of the unwind rope detection apparatus 10.

  When power is turned on by operating a power switch (not shown) of the unfolded rope detection device 10, whether or not the short-range communication Ce between the transmission / reception unit 13 and the use section determination device 20 is established by the control unit 11. By the determination, whether or not the worker WM has entered the trunk use section is detected (step S1).

  Here, when it is determined by the control unit 11 that the short-range communication Ce between the transmission / reception unit 13 and the use section determination device 20 has been established, the intrusion of the worker WM into the torso use section is detected ( (Step S1 (Yes)), the timer function T starts measuring the use section intrusion time <T1> (Steps S2 and S3), and the control unit 11 closes the distance between the transmission / reception unit 13 and the unbody rope status determination device 30. By determining whether or not the communication Cs is established, it is detected whether or not the worker WM is in the state of the unwound rope (step S4).

  Here, for example, immediately after the worker WM has entered the torso use section or just past the torso use section, the transmission / reception unit 13 and the torso status determination device 30 When the short-range communication Cs is established and it is detected that the worker WM is in the state of the unfolded rope (step S4 (Yes)), the use section intrusion time <T1> timed by the timer function T has elapsed. It is determined whether or not (step S5).

  If it is determined that the use section intrusion time <T1> has not elapsed (step S5 (No)), the presence or absence of the worker WM entering the torso use section is detected repeatedly (step S6). Then, when the intrusion of the worker WM into the torso use section is subsequently detected (step S6 (Yes)), it is repeatedly detected whether or not the operator WM is in the no-tuna state (step S6). S4).

  When it is determined that the worker WM is in the unwound rope state (step S4 (Yes)) and it is determined that the use section entry time <T1> has elapsed (step S5 ( Yes)), the voice output unit 14 repeatedly outputs an electronic voice “piyopiyo” that notifies the worker WM that the intrusion has been entered into the torso use section, and uses the torso tw of the safety belt SB to the worker WM. Is prompted (step S7), and the timer function T starts to measure the time for the unbody rope time <T2> (steps S8 and S9).

  Then, when it is detected that the worker WM is in the unwound rope state (step S4 (Yes)), it is determined that the unwound rope time <T2> has elapsed (step S10 ( Yes)), the voice output unit 14 warns the unmanned rope of the worker WM. Please hook! ] Is repeatedly output, and the worker WM is warned that it is in the state of the unfolded rope (step S11).

  Thereafter, the worker WM starts the work by hooking the hook f of the trunk tw on the handrail of the scaffolding SF, the master rope, etc., for example, as shown in FIG. When it is pulled out from the machine Rw and extends, the short-range communication Cs between the transmission / reception unit 13 and the uncased rope status determination device 30 is interrupted, and the unworn state of the worker WM is not detected (resolved) (step S4). (No)), the timekeeping times T1 and T2 by the timer function T are reset (step S12), and the notification voice “Piyopiyo” and the warning voice “Cullless rope” by the voice output unit 14 are set. Please hook! Is stopped (step S13).

  If it does so, it will be detected whether the said worker WM will be in a state of a no-wool rope again (step S14).

  Here, when the worker WM ends the work there, for example, the hook f of the torso tw is removed from the handrail or the like of the scaffolding SF so that the torso tw is wound around the winder Rw. Then, the short-range communication Cs between the transmission / reception unit 13 and the unwound rope situation determination device 30 is resumed, and it is detected that the worker WM is in the unwound rope state again (step S14 (Yes)).

  If it does so, it will return to the process from the head of a series of said unwind rope detection processes (step S1).

  On the other hand, in step S6 (No), that is, the intrusion of the worker WM into the torso use section is detected and the use section intrusion time <T1> has not elapsed, for example, the work If the intrusion is no longer detected simply because the member WM passes through the torso use section, the time T1 counted by the timer function T is reset (step S15), and the process from the beginning of the series of unwound detecting processes is performed. (Step S1).

  After this, for example, even when the scaffold SF is disassembled and reassembled in another place, the worker TW attaches the working partition determination device 20 to the work area of the reassembled scaffold SF and works easily. The unwind rope detection device 10 attached to the safety belt SB of the worker TW can surely perform the unwind rope detection process similar to the above.

  Since the use partition determination device 20 can be configured at low cost simply by providing an IC tag such as the NFC tag 21, the work area can be changed by reassembling the scaffold SF to another place or moving to another scaffold SF. It is good also as a structure which attaches the new use division determination apparatus 20 to the scaffold SF by adhesion | attachment etc. each time it changes, and uses it disposable.

  Therefore, according to the unfolded rope detection device 10 having the above-described configuration, the use zone determination device (NFC tag) that is detachably attached to the work area of the scaffold SF by the short-range wireless communication transmitting / receiving unit 13 driven by the battery power source 16. ) When the short-range communication Ce with 20 is established, the operator WM is detected to enter the trunk rope use section (elevated work area, etc.), and further, patch-type adhesion to the hook f of the trunk tw. By detecting the short distance communication Cs with the unfit rope status determination device (NFC tag) 30 attached by the above, the unworn rope state of the worker WM is detected.

  When the worker WM detects that the worker WM has entered the torso use section, the sound output unit 14 outputs an electronic voice “piyopiyo” that notifies the operator WM of the intrusion to the torso use section. When the unmanned rope state of the worker WM is detected, an electronic voice “unwind rope is used to warn the unmanned rope state of the worker WM by the voice output unit 14. Please hook! Is output.

  As a result, even if the work area changes in a short period of time, it is possible to easily and reliably notify the worker WM of the intrusion into the torso use section without having to install a large-scale system. Can warn of the unworn condition.

  Further, according to the unstructured rope detection device 10 having the above-described configuration, the state in which the worker WM is detected to enter the use area of the torso is detected as the use section intrusion time <T1> stored in the memory 12. When the operation continues for a while, the sound output unit 14 outputs an electronic sound for notifying the worker WM of entering the torso use section, so that the worker WM simply passes, for example, the torso use section. However, it is possible to prevent the notification voice from being output.

  Further, according to the unwound rope detection device 10 having the above-described configuration, the state in which the unwound rope of the worker WM is detected continues for the unwind rope time <T2> stored in the memory 12. In this case, since the voice output unit 14 outputs an electronic voice warning that the unmanned rope state of the worker WM, the worker WM enters the trunk use section, for example, the hook f of the trunk tw. It is possible to prevent the warning sound from being output immediately when trying to put it on the handrail or the like of the scaffold SF.

  In the unstructured rope detection device 10 having the above-described configuration, the contents of the electronic sound for notifying the intrusion of the worker WM into the section for using the tornage and the contents of the electronic sound for warning the unworn state of the worker WM are: The present invention is not limited to the above embodiment, and any electronic sound or electronic sound may be used.

  Moreover, in the unwind rope detection apparatus 10 of the said embodiment, the short-range communication Cs with the unwind rope status judgment apparatus (NFC tag) 30 attached to the transmission / reception part 13 and the hook f of the wind rope tw is established. , It is determined that the torso tw is in a range of a distance that is completely wound around the winder Rw and is not used, and the unwound state of the worker WM is detected. The winder Rw may be provided with a switch that turns on or off by detecting the withdrawal of the torso tw and detects the state of the no torso based on the operation of this switch.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention when it is practiced. Further, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment or some constituent elements are combined in different forms, the problems described in the column of the problem to be solved by the invention If the effects described in the effect of the invention can be obtained, and a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

DESCRIPTION OF SYMBOLS 10 ... Unwind rope detection apparatus, 11 ... Control part, 12 ... Memory,
12a ... unfolded rope detection program, 12b ... use section entry time <T1>,
12c ... Cuneal rope time <T2>, 13 ... Transmission / reception unit, 14 ... Audio output unit, 15 ... Input unit,
16 ... Battery power supply, 20 ... Use partition determination device, 22 ... Locking device,
30 ... Uncull rope situation judging device, 21, 31 ... NFC tag, SF ... scaffolding, WM ... worker,
SB ... safety belt, tw ... lanyard, f ... hook, Rw ... winder.

Claims (7)

Battery power,
A first communication unit that is driven by the battery power source and wirelessly communicates with a first external communication device that is attached to a section to be detected by the unfolded rope within a preset first range;
A second communication means that is driven by the battery power source and wirelessly communicates with an external second communication device attached to the rope in the safety belt within a preset second range;
When the communication with the first communication device is established by the first communication means and the communication with the second communication device is established by the second communication device, a warning is given of the state of the unwound rope. The unwind rope warning means,
The unfolded rope detection device. When communication with the first communication device is established by the first communication unit, the unit includes a block intrusion notification unit that notifies the block entry.
The unfolded rope detection device according to claim 1. The section intrusion notification means has a first time elapse determining means for determining the elapse of a preset first time when communication with the first communication device is established by the first communication means. And informing the intrusion into the section when the first time passage determining means determines the passage of the first time,
The unfolded rope detection device according to claim 2. The unwind rope warning means includes second time passage determination means for determining the passage of a preset second time when the section intrusion notification means is notified of entry into the section. When the second time passage determining means determines the passage of the second time, a warning is given to the state of the uncased rope.
The unfolded rope detection device according to claim 2 or claim 3.   5. The unfolded rope detection device according to claim 1, wherein the unwound rope detection device is detachably attached to the safety belt.   Each of the first communication device and the second communication device has an IC tag for near field communication, and the first communication device and the second communication device are driven by the battery power source, and the IC tag 6. The apparatus according to claim 1, further comprising a transmission / reception unit that performs short-range wireless communication. A method for detecting a unfolded rope using a device driven by a battery power source,
Wirelessly communicating within a first preset range with an external first communication device attached to the section to be detected by the unfolded rope by the battery power source;
Wirelessly communicating within a second range set in advance with an external second communication device attached to the torso in a safety zone by the battery power source;
Warning communication of the unworn rope when communication with the second communication device is established in a state where communication with the first communication device is established;
A method for detecting the unfolded rope.