JP6806725B2 - External opening jig, elevator system, inspection method and mobile terminal - Google Patents

Description

The present invention relates to an elevator maintenance work technique. In particular, the present invention relates to an external opening jig used when opening a door during maintenance work.

During maintenance work on the elevator, the landing door may be opened manually using an external opening jig. At this time, there is a technique for calling attention.

For example, in Patent Document 1, "a switch that detects an external opening operation at a landing door, a notification device that operates in synchronization with this detection, a lighting device, and a safety device that combines these power supply devices as one are provided to open the landing door to the outside. A safety device for an elevator landing door provided near a hole or in an external opening jig (abstract excerpt) is disclosed.

Japanese Unexamined Patent Publication No. 11-292438

According to the technique disclosed in Patent Document 1, when an external opening jig is inserted into the key hole of the landing door, a warning announcement is made. However, the position of the car at that time is not taken into consideration. That is, according to the technique disclosed in Patent Document 1, a warning announcement is made regardless of the suitability of the position of the car. For this reason, even if a warning announcement is made, the worker cannot know whether or not the car is in a safe position. Therefore, from the viewpoint of safety, the effectiveness is low.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve safety when opening a car door with an external opening jig during maintenance work of an elevator.

The present invention is an external opening jig that opens the landing door of an elevator from the outside, an operation detecting device that detects an opening operation by the external opening jig and outputs an operation signal, and an operation detection device that outputs the operation signal to the external device. The notification device includes a communication device for transmitting and a notification device for performing notification output, and the notification device is used from the external device at the transmission destination to the car of the elevator in response to the transmission of the operation signal via the communication device. If the position receives a determination signal indicating that inadequate, and wherein the output child warnings.

Further, the present invention is an elevator system, the above-mentioned external opening jig, a transmitter arranged in the car of the elevator and transmitting a position signal capable of specifying the position of the car, and the external opening. When the operation signal is received from the jig, the position signal is received, the suitability of the position of the car is determined by calculating the relative position, and the determination signal indicating the determination result is transmitted to the external opening jig. It is characterized by including a portable terminal as the external device .

According to the present invention, safety is improved when the car door is opened by an external opening jig during maintenance work of the elevator. Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

It is a block diagram of the whole elevator system of 1st Embodiment. (A), (b) and (c) are a cross-sectional view, a front view and a hardware configuration view of the external opening jig of the first embodiment, respectively. Is a functional block of the external opening jig and the mobile terminal of the first embodiment. It is a flowchart of the safety confirmation process at the time of opening to the outside of the first embodiment. It is a flowchart of car position suitability determination processing of 1st Embodiment. It is explanatory drawing for demonstrating the car position suitability determination process of 1st Embodiment. It is a flowchart of the safety confirmation process at the time of opening to the outside of the modification of the 1st Embodiment. (A) and (b) are a cross-sectional view and a front view of the external opening jig of the second embodiment, respectively. It is a functional block of the external opening jig and the mobile terminal of the second embodiment. It is a flowchart of the safety confirmation process at the time of opening to the outside of the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Hereinafter, in the present specification, those having the same function are designated by the same reference numerals, and repeated description thereof will be omitted unless otherwise specified.

<< First Embodiment >>
The first embodiment of the present invention will be described. In the present embodiment, whether or not the car is in an appropriate position when a maintenance worker (hereinafter referred to as a worker) opens the elevator landing door from the outside with an external opening jig in an emergency or inspection. Outputs a reminder that can be identified.

Hereinafter, in the present specification, the appropriate position of the car means a state in which the car is in a position where a worker can safely get in when the car door is manually opened during maintenance work. On the other hand, the improper position of the car means that when the car door is opened manually, the distance to the car ceiling is large and workers cannot safely get in, or there is no car ceiling under their feet. , Means that the car is in a position where the worker may fall into the hoistway.

First, the overall configuration of the elevator system 100 of the present embodiment will be described. In the following, the configuration required to explain the processing of the present embodiment will be mainly described.

FIG. 1 is an overall configuration diagram of the elevator system 100 of the present embodiment. The elevator system 100 of the present embodiment includes a car 105, a landing door 103, a car door 104, a transmission line 110, a balance weight 113, a hoisting machine 112, a control panel 120, a main rope 106, and the like. It is equipped with an externally open safety system 190.

In the elevator system 100, the car 105 is connected to the counterweight 113 via the main rope 106. The car 105 and the counterweight 113 move up and down in the hoistway 108 in a fishing bottle manner by driving the main rope 106 with the hoisting machine 112. The hoisting machine 112 is driven according to a control signal transmitted from the control panel 120 via the transmission line 110. That is, the control panel 120 controls the traveling operation of the car 105.

The landing door 103 is installed at the landing 107 on each floor. Further, the car door 104 is arranged in the car 105. During normal operation, the landing door 103 and the car door 104 operate according to an instruction from the control panel 120 via the transmission line 110. For example, when the car 105 arrives at the destination floor, the car door 104 and the landing door 103 are controlled to open and close in conjunction with each other. On the other hand, during maintenance operation, control of each door is released so that the door can be opened and closed manually.

[Safety system when open to the outside]
The safety system 190 at the time of external opening is a warning that the worker 109 can determine whether or not the car 105 is in an appropriate position when opening the landing door 103 from the landing 107 in an emergency or an inspection. Output. The external opening safety system 190 of the present embodiment includes an external opening jig 200, a mobile terminal 300, and a beacon 400.

[External opening jig]
At the time of maintenance and inspection, the external opening jig 200 is inserted into a key hole (not shown) of the landing door 103 to open the landing door 103 from the landing 107 side. At this time, when the external opening jig 200 of the present embodiment is inserted into the key hole, it outputs a signal to the mobile terminal 300. Then, the information on the suitability of the position of the car is received from the destination mobile terminal 300, and the information is output accordingly.

Hereinafter, the external opening jig 200 of this embodiment will be described.

FIG. 2B is a front view of the external opening jig 200 of the present embodiment. FIG. 2A is a cross-sectional view taken along the line AA'of FIG. 2B. Further, FIG. 2C is a hardware configuration diagram of the external opening jig 200.

As shown in these figures, the external opening jig 200 of the present embodiment includes an insertion portion 230 and a main body portion 260. Further, the insertion unit 230 includes a recognition device 210. Further, the external opening jig 200 of the present embodiment includes an output device 220, a communication device 240, a substrate 250, and a power supply unit 290. The output device 220, the substrate 250, and the power supply unit 290 are housed in, for example, the main body unit 260.

The substrate 250 functions as a control unit that controls the operation of the external opening jig 200 and a storage unit that holds various data necessary for the control. Details of control by the control unit will be described later.

As shown in FIG. 2C, the substrate 250 includes, for example, a CPU 256, a RAM 257, a ROM 258, and an external interface (I / F) 259. Each function realized by the substrate 250, which will be described later, is realized, for example, by the CPU 256 loading the program stored in the ROM 258 in advance into the RAM 257 and executing the program.

The communication device 240, the recognition device 210, and the output device 220 are connected via an external I / F 259. In addition, all or a part of each of the above-mentioned functions may be realized by an electric circuit or the like.

The communication device 240 communicates with an external device. In this embodiment, short-range wireless communication is performed with the mobile terminal 300. In the present embodiment, for example, communication based on a standard such as Bluetooth (registered trademark) used for transmitting and receiving simple information using radio waves is performed between information devices having a distance of several meters to several tens of meters. ..

The recognition device 210 detects that the external opening jig 200 has been inserted into the key hole, and outputs a detection signal to the substrate 250. For the recognition device 210, for example, a pressure sensor for detecting pressure or the like is used.

The output device 220 includes, for example, at least one of a light 221 (see FIG. 3) that outputs light and a buzzer 222 (see FIG. 3) that outputs sound. The output device 220 outputs a warning according to an instruction from the substrate 250.

The power supply unit 290 supplies drive power to the board 250, the output device 220, the recognition device 210, and the like. In this embodiment, it is realized by a battery such as an external battery, for example.

[Mobile terminal]
The mobile terminal 300 is a terminal carried by the worker 109 during maintenance. Performs various processes required for maintenance work. Further, in the present embodiment, the position signal transmitted by the beacon 400 is received, the suitability of the position of the car 105 is determined, and the determination result is transmitted to the external opening jig 200. The details of the judgment of suitability will be described later.

The mobile terminal 300 includes, for example, a control unit including a CPU, RAM, ROM, etc., a display device that also serves as a display unit and an operation input unit, an audio output device, and a communication device. This can be achieved with a portable information processing device. The shape and mode of the mobile terminal 300 does not matter. For example, it may be a wearable information processing device.

[beacon]
The beacon 400 is a transmitter that is arranged in the car 105 and transmits a position signal that can identify the position. The transmitted position signal is, for example, a high-frequency electromagnetic wave such as a radio wave or an infrared ray.

In this embodiment, the beacon 400 is attached prior to maintenance work. The beacon 400 includes, for example, in the present embodiment, a ceiling beacon 400u attached to the ceiling of the car 105 and an underfloor beacon 400d attached to the underfloor of the car. The ceiling beacon 400u and the underfloor beacon 400d each obtain power from, for example, a power supply supplied to the car 105.

The position signal transmitted from the ceiling beacon 400u and the position signal transmitted from the underfloor beacon 400d can be distinguished from each other. For example, the ceiling beacon 400u and the underfloor beacon 400d each output position signals having different frequencies.

The beacon 400 of the present embodiment has, for example, a directivity of 180 degrees. Therefore, the signal transmitted from the ceiling beacon 400u can be received above the car 105. Further, the signal transmitted from the underfloor beacon 400d can be received below the car 105. Hereinafter, when it is not necessary to distinguish between the ceiling beacon 400u and the underfloor beacon 400d, the beacon 400 is used as a representative.

[Functional block]
Next, the functional configuration of the external opening jig 200 and the mobile terminal 300 of the present embodiment regarding the external opening safety system 190 will be described. FIG. 3 is a functional block diagram of the functions of the external opening jig 200 and the mobile terminal according to the external opening safety system 190 of the present embodiment.

As shown in this figure, the substrate 250 (control unit) of the external opening jig 200 of the present embodiment includes an operation detection unit 251 and a notification control unit 252.

The operation detection unit 251 detects that the external opening jig 200 has been inserted into the key hole, and outputs the external opening jig 200 to the mobile terminal 300 via the communication device 240. The operation detection device 251 and the recognition device 210 constitute an operation detection device.

In the present embodiment, when the operation detection unit 251 receives the detection signal from the recognition device 210, the operation detection unit 251 generates the operation signal and outputs it to the mobile terminal 300. Hereinafter, in the present embodiment, the operation of inserting the external opening jig 200 into the key hole in order to unlock the landing door 103 is referred to as an opening operation.

When the notification control unit 252 receives the determination signal indicating the suitability of the position of the car 105 from the mobile terminal 300 via the communication device 240, the notification control unit 252 instructs the output device 220 to output according to the determination signal. The output control according to the determination signal is stored in advance in ROM 258 or the like, which will be described later. The notification control unit 252 and the output device 220 constitute a notification device.

In the present embodiment, when a determination signal indicating that the position is inappropriate is received, an output that calls attention, for example, a warning output, is instructed to be performed. Specifically, for example, the light 221 is blinked or the buzzer 222 emits a warning sound.

On the other hand, when a determination signal indicating that the position is appropriate is received, an output indicating that the vehicle is safe, that is, an output indicating that the landing door 103 can be opened is instructed to be performed. Specifically, the lighting 221 is turned off or turned on in green. When a determination signal indicating that the position is appropriate is received, the output may not be performed.

The mobile terminal 300 includes a communication unit 310, a signal reception unit 320, a car position determination unit 331, a determination signal generation unit 332, and an output control unit 333.

The communication unit 310 transmits / receives a signal to / from the external opening jig 200. In the present embodiment, for example, an operation signal is received and a determination signal is output. Further, the signal receiving unit 320 receives the position signal from the beacon 400.

When the car position determination unit 331 receives the operation signal via the communication unit 310, the car position determination unit 331 calculates the relative position of the mobile terminal 300 with respect to the beacon 400 using the position signal received from the beacon 400, and determines the suitability of the position of the car 105. Determine.

In the present embodiment, for example, when a position signal is received from the underfloor beacon 400d, the car position determination unit 331 determines that it is inappropriate. When the position signal is received from the ceiling beacon 400u, the car position determination unit 331 calculates the distance between the ceiling beacon 400u and the mobile terminal 300 from the position signal. Then, when the calculated distance is less than the predetermined threshold value Th, the car position determination unit 331 determines that it is appropriate. On the other hand, if the threshold value is Th or more, it is determined to be inappropriate. Further, when the position signal is not received from neither the ceiling beacon 400u nor the underfloor beacon 400d, the car position determination unit 331 determines that it is appropriate. The details of the determination of the car position determination unit 331 will be described later.

The determination signal generation unit 332 generates a determination signal according to the determination result of the car position determination unit 331 and outputs the determination signal to the external opening jig 200 via the communication unit 310.

Each function of the mobile terminal 300 is realized by the CPU loading a program stored in a storage device such as a ROM in advance into the memory and executing the program. Each data required for processing is stored in a storage device such as a ROM.

The communication unit 310 of the mobile terminal 300 and the communication device 240 of the external opening jig 200 are paired prior to signal transmission / reception.

[Safety confirmation process when open to the outside]
Next, the flow of the safety confirmation process at the time of external opening by the external opening jig 200, the mobile terminal 300, and the beacon 400 of the present embodiment will be described. FIG. 4 is a processing flow of the safety confirmation process at the time of opening to the outside of the present embodiment.

This process starts when the external opening jig 200 is inserted into the key hole of the landing door 103. That is, it is started when the recognition device 210 detects the opening operation.

When the recognition device 210 detects the opening operation (step S1101), the operation detection unit 251 generates an operation signal and transmits it to the mobile terminal 300 via the communication device 240 (step S1102).

On the mobile terminal 300 side, when the operation signal is received via the communication unit 310 (step S1201), the signal receiving unit 320 acquires (receives) the position signal transmitted from the beacon 400 at that timing (step S1202). ..

The car position determination unit 331 uses the received position signal to determine the suitability of the position of the car 105 (step S1203). Then, the determination signal generation unit 332 generates the determination result as a determination signal and transmits it to the external opening jig 200 via the communication unit 310 (step S1204).

On the external opening jig 200 side, when the discrimination result is received via the communication device 240 (step S1103), the notification control unit 252 outputs a notification according to the discrimination result (step S1104), and ends the process.

In step S1104, it may be controlled to output only when the determination result is inappropriate.

[Car position suitability determination processing]
Next, the flow of the car position suitability determination process for determining the suitability of the position of the car 105 by the car position determination unit 331 of the mobile terminal 300 of the present embodiment will be described. FIG. 5 is a flowchart of the car position suitability determination process of the present embodiment. Further, FIG. 6 is a diagram for explaining the car position suitability determination process. This process is started when the operation signal is received.

The car position determination unit 331 determines whether or not the signal reception unit 320 has received the position signal from the underfloor beacon 400d (step S1301). When the received position signal is transmitted from the underfloor beacon 400d, the car position determination unit 331 determines that it is inappropriate (step S1302), and ends the process.

The position signal from the underfloor beacon 400d is received when the car 105 is located higher than the floor where the worker 109 carrying the mobile terminal 300 is currently located. For example, there is a car 105 at the position shown in FIG. 6, and a worker 109 is on the first floor (1F). In such a case, when the worker 109 opens the landing door 103, the worker 109 may fall into the hoistway 108. Therefore, the car position determination unit 331 determines that it is inappropriate.

Next, the car position determination unit 331 determines whether or not the signal reception unit 320 has received the position signal from the ceiling beacon 400u (step S1303). When the received position signal is transmitted from the ceiling beacon 400u, the car position determination unit 331 calculates the distance DL from the floor where the worker 109 is located to the ceiling beacon 400u (step S1304).

For the distance DL from the floor where the worker 109 is located to the ceiling beacon 400u, for example, the distance H1 between the mobile terminal 300 and the ceiling beacon 400u is calculated, and the average height h2 for holding the mobile terminal 300 is subtracted. (DL = H1-h2). The distance H1 from the ceiling beacon 400u to the mobile terminal 300 is calculated from, for example, the amount of attenuation of the intensity of the signal transmitted from the ceiling beacon 400u.

Then, the car position determination unit 331 determines whether or not the calculated distance DL is equal to or greater than a predetermined threshold value Th (step S1305). When the distance DL is equal to or greater than the threshold value Th, the car position determination unit 331 determines that it is inappropriate (step S1302). The threshold Th is set to a height at which the worker 109 can safely enter the ceiling of the car.

First, in the example of FIG. 6, the signal from the ceiling beacon 400u is received when the worker 109 carrying the mobile terminal 300 is on the third floor (3F) or the fourth floor (4F). Here, the distance DL from the floor where the worker 109 is located to the ceiling beacon 400u is equal to or higher than the threshold value Th when the worker 109 is on the 4th floor. In this case, when the worker 109 opens the landing door 103, the hoistway 108 may fall to the ceiling of the car 105. Therefore, the car position determination unit 331 determines that it is inappropriate.

On the other hand, when the calculated distance DL is less than the predetermined threshold value Th, it is determined to be appropriate (step S1306), and the process is terminated.

For example, in the example of FIG. 6, there is a worker 109 on the 3rd floor. In this case, even if the worker 109 opens the landing door 103, the worker 109 can get on the ceiling of the car 105 and does not fall into the hoistway 108. Therefore, the car position determination unit 331 determines that it is appropriate.

If no signal is received from any of the beacons 400, it is determined to be appropriate (step S1306). In the example of FIG. 6, such a state is, for example, when the worker 109 is on the second floor (2F). In this case, even if the worker 109 opens the landing door 103, the worker 109 does not fall into the hoistway 108. Therefore, the car position determination unit 331 determines that it is appropriate.

As described above, according to the present embodiment, when the car 105 is not in an appropriate position, a warning output is performed. In addition, when it is in an appropriate position, an output (safety output) indicating that it is safe is produced. According to the present embodiment, the worker 109 has a simple configuration of the external opening jig 200, the mobile terminal 300 held by the worker 109, and the beacon 400 before opening the landing door 103 by the external opening jig 200. In addition, it is possible to judge whether or not it is safe.

That is, according to the present embodiment, effective alerting can be performed. This makes it possible to provide a highly safe safety system 190 at the time of opening to the outside.

Further, according to the present embodiment, when the worker 109 performs the opening operation by the external opening jig 200, the worker 109 continues the operation as it is by the output of the external opening jig 200 and opens the landing door 103. It is possible to determine whether or not there is a possibility of falling into the hoistway. The worker 109 can use this to easily move the car 105 to a reliable and safe position.

For example, when the safety output is made, the operation of opening the landing door 103 is proceeded as it is. On the other hand, when the warning output is output, the worker 109 can proceed with the unlocking operation after moving the car 105 to an appropriate position. At this time, every time the car 105 is moved, the external opening jig 200 is inserted into the key hole to obtain an output. This is repeated until a safe output is obtained.

As described above, according to the present embodiment, it is possible to obtain a highly effective alert output or safety output, so that safety can be improved and work efficiency can also be improved.

Further, in the present embodiment, the output destination of the attention alert output is the external opening jig 200. Therefore, the worker 109 can detect the danger at hand.

Further, if the position of the car is appropriate, the worker 109 can easily grasp the state of the battery of the external opening jig 200 by configuring the safety output. This is because when the power supply unit 290 of the external opening jig 200 has run out of batteries, neither the warning output nor the safety output is output. As a result, the problem that the external opening jig 200 does not output a warning due to the dead battery can be minimized.

<Modification example 1>
In the above embodiment, the external opening jig 200 is configured to output a warning and a safety output. However, the output destination of this embodiment is not limited to the external opening jig 200. For example, it may be output to the mobile terminal 300.

In this case, in the mobile terminal 300, the determination signal generation unit 332 outputs the determination result to the output control unit 333. In response to this, the output control unit 333 outputs a predetermined output for each of an inappropriate case and an appropriate case.

FIG. 7 shows the flow of the safety confirmation process when the external opening of this modification is performed. The same processing as the external opening safety confirmation processing of the above embodiment is designated by the same reference numerals, and the description thereof will be omitted again.

Similar to the first embodiment, when the car position determination unit 331 determines the suitability of the car position in the mobile terminal 300 (step S1203), the determination signal generation unit 332 generates a determination signal according to the determination result. It is output to the output control unit 333 (step S1401).

The output control unit 333 outputs according to the determination signal (step S1402), and ends the process.

When outputting to the mobile terminal 300, the output destination can be, for example, a display device (liquid crystal panel) included in the mobile terminal 300. In this case, for example, a message may be output instead of turning on the lighting.

If the position of the car 105 is inappropriate, a message calling attention is output, and if the position of the car 105 is appropriate, a message indicating that the position is appropriate is output. These messages are stored in a memory such as a ROM in advance.

Further, the output destination may be a speaker included in the mobile terminal 300. The voice message output from the speaker is also stored in a memory such as a ROM in advance, and is selected and output according to an appropriate or inappropriate determination result.

When the external opening jig 200 includes a voice synthesizer or the like, the external opening jig 200 may be configured to output a voice message for calling attention.

Further, the alert output and the safety output may be configured to be performed on both the external opening jig 200 and the mobile terminal 300.

<Modification 2>
Further, in the above embodiment, the beacon 400 has directivity, and the case where the beacon 400 has an orientation angle of 180 degrees has been described as an example. However, the beacon 400 is not limited to those having such characteristics. For example, a beacon 400 (non-directional radio beacon) having no directivity and an orientation angle of 360 degrees may be used.

In this case, the car position determination unit 331 compares the intensities of the position signal from the underfloor beacon 400d and the position signal from the ceiling beacon 400u in the car position determination process. Then, when the strength of the position signal from the underfloor beacon 400d is higher, it is determined to be inappropriate.

In this case, the car 105 is located higher than the floor on which the worker 109 holding the mobile terminal 300 is located.

When the strength of the position signal from the underfloor beacon 400d is less than or equal to the strength of the position signal from the ceiling beacon 400u, the distance DL from the ceiling beacon 400u to the floor where the worker 109 is located using the position signal from the ceiling beacon 400u. Is calculated and suitability is determined. The same method as in the above embodiment is used for calculating the distance DL and determining the suitability.

If the strengths of both are equal, it is judged to be appropriate.

<< Second Embodiment >>
Next, a second embodiment of the present invention will be described. In the present embodiment, the external opening jig includes an unlocking prevention mechanism. Then, when the position of the car 105 is inappropriate, the unlocking prevention mechanism prevents the unlocking operation by the external opening jig from proceeding.

Hereinafter, the present embodiment will be described with a focus on a configuration different from that of the first embodiment.

8 (a) and 8 (b) show external views of the external opening jig 201 of the present embodiment. FIG. 8B is a front view of the external opening jig 201 of the present embodiment. Further, FIG. 8A is a cross-sectional view taken along the line AA'of FIG. 8B.

As shown in this figure, the external opening jig 201 of the present embodiment includes an unlocking prevention mechanism 270 in addition to the configuration of the external opening jig 200 of the first embodiment.

The unlocking prevention mechanism 270 makes the landing door 103 unlockable if the position of the car 105 is improper. The unlocking prevention mechanism 270 of the present embodiment includes an unlocking prevention plate and a drive unit. The drive unit drives the unlocking prevention plate in response to an instruction from the substrate 250, and stores the unlocking prevention plate in or protrudes from the insertion unit 230 or the main body unit 260.

When the unlocking prevention plate is projected, the function of the external opening jig 200 is stopped. That is, unlocking becomes impossible. On the other hand, when the unlocking prevention plate is housed, the external opening jig 200 can continue the unlocking operation. That is, the landing door 103 can be unlocked and the landing door 103 can be opened.

The functional block of the substrate 250 of this embodiment will be described with reference to FIG. In this embodiment, in addition to the functions of the first embodiment, an unlocking prevention unit 254 that controls the unlocking prevention mechanism 270 is further provided.

When the unlocking prevention unit 254 of the present embodiment receives a determination signal indicating the suitability of the position of the car 105 from the mobile terminal 300 via the communication device 240, the unlocking prevention mechanism 270 controls the unlocking prevention mechanism 270 according to the determination signal. To do. That is, when the unlocking prevention unit 254 receives the determination signal indicating appropriateness, the unlocking prevention plate is housed, and when the determination signal indicating inappropriateness is received, the unlocking prevention plate is projected.

The external opening jig 200 of the present embodiment may be configured so that the unlocking prevention plate is projected by default and is stored only when a determination signal indicating appropriateness is received.

Hereinafter, the flow of the safety confirmation process at the time of opening the outside of the present embodiment will be described. FIG. 10 is a processing flow of the safety confirmation process during maintenance work of the present embodiment. The process (step S1104) until the determination result is received and the output according to the determination result is performed is the same as that of the first embodiment.

After that, in the present embodiment, the unlocking prevention unit 254 further instructs the unlocking prevention mechanism 270 to store the unlocking prevention plate 271 if appropriate (step S2101) according to the determination result (step S2101). Step S2102), the storage is performed, and the process is completed. On the other hand, if it is inappropriate, the unlocking prevention plate 271 is projected as it is.

As described above, according to the present embodiment, the same configuration as that of the first embodiment is provided, and the same effect as that of the first embodiment can be obtained. Further, the present embodiment includes an unlocking prevention mechanism 270 that prevents the unlocking operation when the position of the car 105 is inappropriate. Therefore, according to the present embodiment, the unlocking operation cannot be physically proceeded unless the position of the car 105 is surely in a safe position. Therefore, it is possible to provide a more safe external safety system 190.

In this embodiment, the alert output and the safety output may not be performed. Further, also in this embodiment, each modification of the first embodiment can be applied.

The present invention is not limited to the above embodiment, and includes various modifications. For example, the above-described embodiment is for explaining the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the configurations described. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

In addition, the control lines and information lines indicate those that are considered necessary for explanation, and do not necessarily indicate all the control lines and information lines in the product. In practice, it can be considered that almost all configurations are interconnected.

100: Elevator system, 103: Landing door, 104: Car door, 105: Car, 106: Main rope, 107: Landing, 108: Hoistway, 109: Worker, 110: Transmission line, 112: Hoisting machine, 113: Balance weight, 120: Control panel, 190: Safety system at external opening, 200: External opening jig, 201: External opening jig, 210: Recognition device, 220: Output device, 221: Lighting, 222: Buzzer, 230: Insertion unit, 240: Communication device, 250: Board, 251: Operation detection unit, 252: Notification control unit, 254: Unlocking prevention unit, 256: CPU, 257: RAM, 258: ROM, 259: External I / F, 260: Main body, 270: Unlocking prevention mechanism, 271: Unlocking prevention plate, 290: Power supply, 300: Mobile terminal, 310: Communication, 320: Signal receiving, 331: Car position determination, 332: Judgment signal generation unit, 333: Output control unit, 400: Beacon, 400d: Underfloor beacon, 400u: Ceiling beacon

Claims (7)

It is an external opening jig that opens the elevator landing door from the outside.
An operation detection device that detects the opening operation by the external opening jig and outputs an operation signal,
A communication device that transmits the operation signal to an external device,
And a notification unit that performs a notification output,
When the notification device receives a determination signal indicating that the position of the car of the elevator is inappropriate from the external device of the transmission destination in response to the transmission of the operation signal via the communication device, a warning is given. external opening jig, wherein the output child a. The external opening jig according to claim 1 .
The notification device can be opened when a determination signal indicating that the position of the car of the elevator is appropriate is received from the external device of the transmission destination in response to the transmission of the operation signal via the communication device. An external opening jig characterized by producing an output meaning that. The external opening jig according to claim 1 or 2 .
When the determination signal indicates that the position of the car is inappropriate, the external opening jig is further provided with an unlocking prevention mechanism that makes the landing door unlockable by the external opening jig. .. The external opening jig according to claim 1 and
A transmitter that is placed in the car of the elevator and emits a position signal that can identify the position of the car.
When the operation signal is received from the external opening jig, the position signal is received, the appropriateness of the position of the car is determined by calculating the relative position, and the determination signal indicating the determination result is used for the external opening cure. An elevator system including a mobile terminal as the external device for transmitting to a jig. The elevator system according to claim 4 .
The mobile terminal includes an output control unit that outputs a notification to an output device in response to the determination signal.
An elevator system characterized in that the output control unit outputs a warning when the determination signal is a signal indicating that the position of the car is inappropriate. This is an inspection method that uses an external opening jig that opens the elevator landing door from the outside.
An operation detection step that detects the opening operation by the external opening jig and outputs an operation signal,
A communication step in which the external opening jig transmits the operation signal to the external device,
When the operation signal is received, a position signal is received from a transmitter that is placed in the car of the elevator and transmits a position signal that can specify the position of the car, and the suitability of the position of the car of the elevator is determined. Car position determination step and
An inspection method comprising: an output step in which the external opening jig outputs a warning when the position of the car is determined to be inappropriate in the car position determination step. A mobile terminal carried by maintenance workers
A communication unit that receives an operation signal indicating that the landing door has been opened from an external opening jig that opens the landing door of the elevator from the outside.
Receives a signal from a transmitter that is placed in the car of the elevator and emits a position signal that can identify the position of the car, and uses the signal to position the position of the car with respect to the position of the mobile terminal. Equipped with a car position determination unit that determines suitability,
The communication unit is a mobile terminal characterized in that when it is determined that the position of the car is inappropriate, a determination signal indicating a determination result is transmitted to the external opening jig.