JP6188778B2 - Maintenance work safety device and elevator maintenance inspection method - Google Patents

Description

  Embodiments described herein relate generally to a maintenance work safety device and an elevator maintenance inspection method.

  Elevator maintenance / inspection involves work in a narrow space of a hoistway or work on a car. For this reason, at the time of maintenance / inspection, an operator needs to work by wearing safety protective equipment such as a helmet, a glove (including gloves and insulating gloves, the same applies hereinafter), a safety belt, and the like.

  Conventionally, various types of safety protectors have been proposed. Also known is a system for detecting that an operator has forgotten to wear a safety protective device.

JP 2014-768882 A

  However, it is relatively easy to simply detect forgetting to wear the safety protective device, but it is difficult for the operator to determine whether the safety protective device is correctly worn.

  An embodiment of the present invention is capable of detecting whether or not an operator correctly wears a safety protective device with a simple configuration, and capable of presenting a countermeasure when the worker is not correctly wearing a maintenance work safety device and The purpose is to provide elevator maintenance and inspection methods.

  An embodiment for achieving the above object is a temperature detection method for detecting the temperature of an operator attached to a predetermined position of a safety protective device worn by an operator who performs maintenance and inspection of an elevator, and obtained when the safety protective device is worn. Means, a worker detection means for detecting the work position of the worker, a regular work information storage means for storing information related to a regular work at the time of maintenance according to the work position of the worker, and the temperature detection means. A determination means for searching the regular work information storage means based on the temperature data and the position data from the worker detection means to determine whether or not the worker is wearing safety protective equipment correctly; As a result, when the worker does not correctly wear the safety protector, an operation mode changing means for changing the operation mode to the maintenance work prohibition mode is provided.

The block diagram which shows the maintenance work safety device which concerns on 1st Embodiment. 6 is a flowchart for explaining the operation of the first embodiment. The block diagram which shows the maintenance work safety device which concerns on 2nd Embodiment. The flowchart explaining the effect | action of 2nd Embodiment. The block diagram which shows the maintenance work safety apparatus which concerns on 3rd Embodiment. The flowchart explaining the effect | action of 3rd Embodiment. Explanatory drawing which shows the example of mounting | wearing of the safety protective device and temperature detection part (temperature sensor) which an operator wears.

<First Embodiment>
FIG. 1 is a configuration diagram showing the first embodiment.

  The maintenance work safety device 1A of the first embodiment shown in FIG. 1 detects whether the worker 3 who performs maintenance / inspection of the elevator 2 correctly wears the safety protective device 4, and the worker 3 When the vehicle 4 is not properly worn, the operation mode of the elevator 2 is shifted to the maintenance work prohibition mode.

  As shown in FIG. 7, the worker 3 who performs maintenance / inspection of the elevator 2 wears the safety protector 4 to perform the work. Various types of safety protectors 4 are considered, such as a helmet that protects the head, a glove that protects the hand, a safety belt that is used by wrapping around the waist when working at high places such as on a basket, and safety shoes that protect the foot. It is done. In the following embodiment, a helmet will be described as an example of the safety protector 4.

  A temperature detector (temperature sensor) 5 (described as the first temperature controller 51 in FIG. 7) is attached to the inside of the helmet as the safety protector 4. Specifically, the temperature detection unit 5 has a space between the head and is attached to the inner surface of the helmet to measure the temperature (body temperature) of the worker 3. If the helmet is not worn or the helmet is not worn correctly, temperature data cannot be obtained or accurate temperature data cannot be obtained. If you wear the helmet correctly, you can measure the correct temperature. The measured temperature data is transmitted wirelessly or the like every predetermined time, for example, every 30 seconds to 2 minutes.

  Further, the maintenance work safety device 1A of the present embodiment includes an operator detection unit 6, a regular work information storage unit 7, a determination unit 8, a control unit 9, an operation mode acquisition unit 10, and an operation mode change unit 11. And.

  The worker detection unit 6 is a position sensor that detects a position where the worker 3 is working. Specifically, an infrared human sensor or the like is arranged, and a position signal is output to the determination unit 8 when the worker 3 is located within the detection range. The worker detection unit 6 can also use a position sensor such as GPS.

  The regular work information storage unit 7 is a detailed manual of the details of work performed by the worker 3, and designates work items and safety protective equipment 4 necessary for the work. Specifically, helmet work is required for all work items in elevator maintenance inspection work. Also, when working on a car as a work item, it is mandatory to wear a safety belt. On the contrary, in the work item for inspecting the sheave, the rope, etc., if the safety protector 4 such as a glove (particularly a gloves) is worn, the hand may be caught. In such work, the glove (gloves) as the safety protective device 4 is excluded.

  The determination unit 8 searches the regular work information storage unit 7 based on the temperature data from the temperature detection unit 5 and the position data from the worker detection unit 6 to determine whether the worker 3 is performing regular work. To do.

  The control unit 9 changes and controls the operation mode change unit 11 based on the determination result of the determination unit 8.

  The operation mode acquisition unit 10 acquires the current elevator operation mode from the control panel 12 of the elevator 2 and outputs it to the operation mode change unit 11.

  The operation mode change unit 11 determines the current operation mode obtained by the operation mode acquisition unit 10 and changes the operation mode based on an instruction from the control unit 9. For example, when the safety protector 4 is correctly worn, if the current operation mode is the normal operation mode, the maintenance / inspection mode is changed. On the other hand, when the safety protector 4 is not properly worn, the mode is changed to the maintenance work prohibition mode. In the maintenance work prohibition mode, the operation of the elevator 2 is stopped. Also, various modes set during maintenance work are canceled.

  Next, the operation of the first embodiment will be described based on the flowchart of FIG.

  When the elevator maintenance / inspection work is started, the work position of the worker 3 is first detected by the worker detection unit 6 (step S1). Further, the body temperature (ambient temperature) of the worker 3 is detected by the temperature detection unit 5 attached to the safety protector 4 (step S2). A database in the regular work information storage unit 7 is searched based on the detected position data of the worker 3 and the detected temperature data of the worker 3. Next, the determination unit 8 determines whether or not the safety protector 4 is correctly worn for the work that the worker 3 is about to perform from the position data and temperature data of the worker 3 (step) S3). As a result of the determination, when it is determined that the safety protector 4 is not correctly worn, the mode is changed to the maintenance work prohibition mode (step S4). For example, in the maintenance work prohibition mode, when the maintenance work determined from the position data of the worker 3 is a live work, if a glove (insulating gloves in this example) is not worn based on the temperature data. If it is determined, the operation of the elevator 2 is stopped so that it is not close to the site where the hot-line work is performed.

  Thus, in the first embodiment, when it is determined that the worker 3 is not wearing the safety protective device 4 correctly, the operation mode is changed to the maintenance work prohibition mode. Can be secured. In addition, whether or not the worker 3 is wearing the safety protector 4 is determined by measuring the body temperature of the worker 3 by the temperature detection unit (temperature sensor) 5 attached to the safety protector 4. The operator 3 can determine whether or not the safety protector 4 is correctly worn with a simple configuration. Further, since the regular work can be determined according to the work position of the worker 3 by the worker detection unit 6 such as a position sensor, whether or not the worker 3 correctly wears the safety protective device 4 is determined. Can be determined.

<Second Embodiment>
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same number is attached | subjected to the same component as 1st Embodiment, and the description is abbreviate | omitted.

  The maintenance work safety device 1B according to the second embodiment includes a notification control unit 13 and a notification unit 14, and when the operator 3 is not wearing the safety protective device 4 correctly, the operation mode is prohibited from the maintenance operation. While changing to the mode, an alarm is notified to the worker 3.

  When the determination unit 8 determines that the worker 3 is not wearing the safety protector 4 correctly, the notification control unit 13 controls the notification unit 14 so as to generate a warning by sound according to the content. For example, when temperature data cannot be obtained from the temperature detection unit 5 attached to the helmet, it is possible that the user is working without wearing the helmet. In this case, a warning message “Please wear the helmet correctly” is notified from the notification unit 14. The notification unit 14 is configured by a speaker or the like, and has a function of providing voice guidance to the worker 3. In particular, in this embodiment, when the worker 3 does not correctly wear the safety protector 4, a voice guidance such as “please correctly wear the safety protector 4” is output to the worker 3. Note that the notification unit 14 is not limited to a speaker, and may be a buzzer sound or an alarm sound, or may warn by light such as blinking of a lamp, character display, or the like.

  Next, the operation of the second embodiment will be described based on the flowchart of FIG.

  When the maintenance / inspection work of the elevator 2 is started, first, the work position of the worker 3 is detected by the worker detection unit 6 (step S11). Further, the body temperature (ambient temperature) of the worker 3 is detected by the temperature detection unit 5 attached to the safety protector 4 (step S12). A database in the regular work information storage unit 7 is searched based on the detected position data of the worker 3 and the detected temperature data of the worker 3. Next, the determination unit 8 determines whether or not the safety protector 4 is correctly worn for the work that the worker 3 is about to perform from the position data and temperature data of the worker 3 (step) S13). As a result of the determination, if it is determined that the safety protector 4 is not correctly worn, the mode is changed to the maintenance work prohibition mode (step S14), and then the operator 3 is informed (step S15). For example, a voice guidance such as “Please wear safety protection properly” is output to the worker 3.

  As described above, in the second embodiment, when it is determined that the worker 3 is not wearing the safety protective device 4 correctly, the operation mode is changed to the maintenance work prohibition mode and a warning is notified to the worker 3. I did it. For this reason, it becomes possible to further ensure the safety of the worker 3 who performs maintenance and inspection.

<Third Embodiment>
Next, a third embodiment of the present invention will be described with reference to FIGS. In addition, the same number is attached | subjected to the same component as 2nd Embodiment, and the description is abbreviate | omitted.

  In the third embodiment, each safety protective device is provided with a temperature detection unit to determine whether or not the safety protective device is correctly worn, and if it is not correctly worn, the driving command is invalidated. It is a feature. For this reason, as shown in FIG. 5, the maintenance work safety device 1C of the third embodiment includes the first temperature detection unit 51, the second temperature addition device in addition to the configuration of the maintenance work safety device 1B according to the second embodiment. The temperature detection unit 52 includes a temperature detection unit 5 including an nth temperature detection unit 5n, a command acquisition unit 15, and a command invalidation control unit 16.

  As shown in FIG. 7, for example, the first temperature detection unit 51 is provided on the inner surface of the helmet as the safety protector 4 as in the first embodiment and the second embodiment. The second temperature detector 52 is provided on the inner surface of a safety belt as the safety protector 4. It is assumed that the nth temperature detection unit 5n is provided in safety shoes as the safety protector 4.

  The determination unit 8 converts the temperature data from the temperature detection unit 5 including the first temperature detection unit 51, the second temperature detection unit 52,..., The nth temperature detection unit 5 n and the position data from the worker detection unit 6. Based on this, the regular work information storage unit 7 is searched to determine whether the worker 3 is performing regular work.

  The command acquisition unit 15 acquires a “driving command” indicating what command the elevator is currently operating.

  The command invalidation control unit 16 invalidates the current “driving command” when the determination unit 8 determines that the worker 3 is not wearing the safety protective device 4 correctly. For example, when the work position of the worker 3 is on the car and the operation command is “high-speed operation”, the operation command is invalidated.

  Next, the operation of the third embodiment will be described based on the flowchart of FIG.

  When the elevator maintenance / inspection work is started, the work position of the worker 3 is first detected by the worker detection unit 6 (step S21). Further, the body temperature (ambient temperature) of the worker 3 is detected by the temperature detection unit 5 attached to the safety protector 4 (step S22). A database in the regular work information storage unit 7 is searched based on the detected position data of the worker 3 and the detected temperature data of the worker 3. Next, the determination unit 8 determines whether or not the safety protector 4 is correctly worn for the work that the worker 3 is about to perform from the position data and temperature data of the worker 3 (step). S23). As a result of the determination, if it is determined that the safety protector 4 is not correctly worn, after changing to the maintenance work prohibition mode (step S24), the operator 3 is notified (step S25). Next, an operation command is acquired (step S26). For example, if the operation command is “high-speed operation”, the operation command is invalidated.

  As described above, in the third embodiment, when it is determined that the worker 3 does not wear the safety protective device 4 correctly, the operation mode is changed to the maintenance work prohibition mode and a warning is notified to the worker 3. I did it. Furthermore, an operation command is acquired, and if the operation command is a “high-speed command”, it is invalidated. For this reason, it becomes possible to further ensure the safety of the worker 3 who performs the maintenance inspection.

  In each of the above embodiments, a determination function invalidation unit may be provided, and the determination function of the determination unit 8 may be invalidated in an emergency maintenance operation. In this case, the determination function invalidation unit may be configured to output a predetermined determination function release command to the determination unit 8 from a terminal held by the worker 3. Or the structure which provides a dedicated switch in the maintenance box in a cage | basket | car may be sufficient. Further, it may be invalidated by a predetermined operation of the destination floor button by the operator 3. On the other hand, the worker 3 that can be invalidated may be limited so that only the person in charge of the field can invalidate it.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1A, 1B, 1C ... Maintenance work safety device, 2 ... Elevator, 3 ... Worker, 4 ... Safety protector, 5 ... Temperature detection part, 6 ... Worker detection part, 7 ... Regular work information storage part, 8 ... Determination , 9 ... control unit, 10 ... operation mode acquisition unit, 11 ... operation mode change unit, 12 ... control panel, 13 ... notification control unit, 14 ... notification unit, 15 ... command acquisition unit, 16 ... command invalidation control unit 51 ... 1st temperature detection part, 52 ... 2nd temperature detection part, 5n ... nth temperature detection part

Claims (5)

A temperature detecting means that is attached to a predetermined position of a safety protective device worn by an operator who performs maintenance and inspection of the elevator, and detects a temperature of the worker obtained when the safety protective device is worn;
Worker detection means for detecting the work position of the worker;
Regular work information storage means for storing information on regular work during maintenance according to the work position of the worker,
Based on the temperature data from the temperature detection means and the position data from the worker detection means, the regular work information storage means is searched to determine whether or not the worker is wearing safety protective equipment correctly. A determination means;
As a result of the determination by the determination means, if the worker is not wearing safety protective equipment correctly, an operation mode change means for changing the operation mode of the elevator to a maintenance work prohibition mode;
As a result of the determination by the determination means, if the worker is not wearing safety protective equipment correctly, driving instruction invalidating means for invalidating the driving instruction output to the elevator,
A maintenance work safety device comprising: The result of the determination by the determination means, when the worker is not wearing safety protective equipment correctly, it is provided with a notification means for notifying the operator of that fact and warning. The maintenance work safety device according to 1.   The temperature detection means is provided in each safety protection device, and the determination means is configured so that the operator correctly wears the safety protection device based on each temperature data from the temperature detection means provided in each safety protection device. The maintenance work safety device according to claim 1, wherein it is determined whether or not there is any.   The maintenance work safety device according to any one of claims 1 to 3, further comprising invalidating means for invalidating a determination function of the determination means. Detecting the temperature of the worker obtained when wearing the safety protective device by means of temperature detection means attached to a predetermined position of the safety protective device worn by the worker who performs maintenance of the elevator,
Detecting the work position of the worker by worker detection means;
Based on the temperature data from the temperature detection means and the position data from the worker detection means, the determination means stores regular work information storage means in which information related to regular work at the time of maintenance corresponding to the worker's work position is stored. To determine whether the worker is wearing safety protective equipment correctly,
As a result of the determination by the determination means, when the worker is not wearing safety protective equipment correctly, the operation mode of the elevator is changed to the maintenance work prohibition mode by the operation mode change means ,
As a result of the determination by the determination means, when the worker does not correctly wear safety protective equipment, the operation instruction output to the elevator is invalidated by the operation instruction invalidation means,
An elevator maintenance and inspection method characterized by the above.

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