Elevator system and information display method during elevator maintenance work

Abstract

To further improve safety of operators and so on during elevator maintenance works.SOLUTION: An elevator system of the present invention comprises a car, a position detection unit to acquire information related to a present car position, multiple landing displays provided on respective multiple floors where the car stops, and a control unit to control the display operation of information by the landing display on each floor. During elevator maintenance works, the control unit generates display data of a symbol that represents not only the relative positional relation between the present car position and the landing of the floor but also the falling risk degree on the floor for every floor based on the information related to the present car position acquired by the position detection unit, and outputs the generated symbol display data on the landing display on the floor. The landing display on each floor displays the display data of the corresponding symbol input from the control unit.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to an elevator system and an information display method during elevator maintenance work. [Background technology]

[0002] Conventionally, various technologies have been proposed to improve the safety of workers and the like during elevator maintenance work (for example, see Patent Document 1). Patent Document 1 discloses an elevator system in which a display control unit that controls the display of a hall indicator provided at the hall of each floor outputs a display instruction signal for a display pattern different from that in the normal operation mode to the hall indicator when the operation mode is a maintenance operation mode. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-137535 A Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, various technologies have been proposed in the past for improving the safety of workers and the like during elevator maintenance work, but there is a demand in this technical field for technologies for further improving the safety of workers and the like during maintenance work.

[0005] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide technology that can further improve the safety of workers and the like during elevator maintenance work. [Means for solving the problem]

[0006] In order to solve the above problems, the elevator system of the present invention comprises a car, a position detection unit that acquires information about the car's current position, a plurality of hall indicators provided at the landings of a plurality of floors where the car stops, and a control unit that controls the display operation of the hall indicators of each floor. In the elevator system of the present invention, during elevator maintenance work, the control unit generates, for each floor, display data for a symbol that indicates not only the relative positional relationship between the car's current position and the landing of that floor, but also the risk of falling at that floor, based on the information about the car's current position acquired by the position detection unit, and outputs the generated display data for the symbol to the hall indicator of that floor. Also, in the elevator system of the present invention, the hall indicator of each floor displays the corresponding display data for the symbol input from the control unit.

[0007] Furthermore, in order to solve the above problems, the information display method for elevator maintenance work of the present invention is a method for displaying information for elevator maintenance work carried out in the elevator system of the present invention. In the information display method for elevator maintenance work of the present invention, the control unit generates, for each floor, display data for a symbol that indicates not only the relative positional relationship between the current position of the car and the landing at that floor, but also the risk of falling at that floor, based on information related to the current position of the car acquired by the position detection unit, and outputs the generated display data for the symbol to a landing indicator for that floor. Also, in the information display method for elevator maintenance work of the present invention, the landing indicator for each floor displays the corresponding display data for the symbol input from the control unit. Effect of the Invention

[0008] According to the present invention having the above configuration, the safety of workers and others during elevator maintenance work can be further improved. [Brief description of the drawings]

[0009] [Figure 1] 1 is a block diagram of an elevator system according to an embodiment of the present invention. FIG. [Diagram 2]FIG. 11 is a diagram showing an example of symbols displayed on a landing indicator at each floor during maintenance work in the elevator system according to one embodiment of the present invention. [Diagram 3] FIG. 11 is a diagram showing the display manner of various information displayed on the landing display of each floor during maintenance work in an elevator system according to one embodiment of the present invention. [Figure 4] FIG. 11 is a diagram showing another display mode of various information displayed on the landing display of each floor during maintenance work in the elevator system according to one embodiment of the present invention. [Diagram 5] FIG. 13 is a diagram for explaining the display conditions of the star symbol displayed on the landing indicator of each floor during maintenance work in the elevator system according to one embodiment of the present invention. [Figure 6] FIG. 13 is a diagram for explaining the display conditions of the square mark symbol displayed on the landing indicator of each floor during maintenance work in the elevator system according to one embodiment of the present invention. [Figure 7] 1A to 1C are diagrams showing examples of changes in the display of the landing indicators at each floor accompanying the movement of the elevator car during maintenance work in an elevator system according to one embodiment of the present invention. [Figure 8] FIG. 11 is a diagram showing an example (modified example) of a display change of the hall display of each floor accompanying the movement of the elevator car during maintenance work in the elevator system according to one embodiment of the present invention. [Figure 9] FIG. 11 is a diagram showing the display manner of various information displayed on a mobile terminal of a worker and an information processing terminal of a building manager during maintenance work in an elevator system according to one embodiment of the present invention. [Figure 10] FIG. 2 is a functional block diagram of a control panel constituting the elevator system according to one embodiment of the present invention. [Figure 11] FIG. 2 is a diagram showing the hardware configuration of a control panel that constitutes an elevator system according to one embodiment of the present invention. [Figure 12] FIG. 2 is a diagram illustrating the hardware configuration of a mobile terminal of an operator and an information processing terminal of a building manager that constitute an elevator system according to an embodiment of the present invention. [Figure 13]4 is a flowchart showing a procedure of a display control process for various information performed during maintenance work in an elevator system according to an embodiment of the present invention. [Figure 14] 5 is a flowchart showing a procedure of a hall display data generation process performed during maintenance work in the elevator system according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an elevator system and an information display method during elevator maintenance work according to one embodiment of the present invention will be specifically described with reference to the drawings.

[0011] [Overall configuration of elevator system] Fig. 1 is a block diagram of an elevator system according to an embodiment of the present invention. In order to simplify the explanation, only components related to elevator maintenance work are shown. In addition, an example in which the building in which the elevator is installed has five floors is explained here, but the number of floors of the building is not limited to this, and the present invention is applicable to buildings in which elevators are installed and have two or more floors.

[0012] As shown in Fig. 1, elevator system 10 includes car 1 and a control panel 3 (control unit) provided in hoistway 2 of car 1. Elevator system 10 includes limit switches 4a, 4b provided in hoistway 2 near the ceiling position of the landing on the top floor (fifth floor) and near the floor position of the landing on the bottom floor (first floor), respectively, and a hoist 5 provided near the bottom of hoistway 2. Elevator system 10 also includes a counterweight 6 arranged in hoistway 2, a pulley 7 attached to the bottom of car 1 and the ceiling of hoistway 2, respectively, and a main rope 8. A pit 9 is provided at the bottom of hoistway 2.

[0013] In FIG. 1, the winding manner of the main rope 8 around the pulleys 7 is omitted, but one end of the main rope 8 is connected to the counterweight 6, and the other end is connected to the hoist 5. Between the hoist 5 and the counterweight 6, the main rope 8 is wound around the pulleys 7 attached to the bottom of the car 1 and the ceiling of the elevator 2 in a predetermined manner. Then, by driving the hoist 5, the position of the main rope 8 wound around the pulley 7 provided on the bottom of the car 1 moves in the vertical direction, and the car 1 moves in the vertical direction (rises and falls). In addition, in the elevator 2, the pulley 7 arranged on the ceiling side is attached to the ceiling of the elevator 2 via an elastic member 7a, and the swaying of the main rope 8 is absorbed by this elastic member 7a.

[0014] The elevator system 10 also includes landing doors 11 on each floor, landing indicators 12 provided on the wall of the landing on each floor, and an indicator box 13 provided on the wall of the landing on the lowest floor (first floor). Although not shown in Fig. 1, the landing indicators 12 on each floor are connected to a control panel 3 (see Fig. 10 described later), and the display operation of the landing indicators 12 on each floor is controlled by control signals and display data input from the control panel 3.

[0015] 1, the elevator system 10 further includes a mobile terminal 21 (terminal device) of a worker who performs maintenance work on the elevator, and an information processing terminal 22 (terminal device) owned by a manager of the building in which the elevator is installed (hereinafter referred to as the "building manager"). In the elevator system 10, the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager are each connected to the control panel 3 via an external communication network 20.

[0016] [Components] Next, each component of the elevator system 10 installed in a building will be described.

[0017] Passengers and baggage are carried inside the car 1. Although not shown in Fig. 1, a metal front flap called an "apron" is provided on the bottom of the car 1 (see Fig. 5 described later, etc.). The apron is provided to prevent people and baggage from falling through the gap between the bottom of the car 1 and the floor even if the hall door 11 is opened, for example, when the elevator makes an emergency stop and the car 1 stops above the designated stopping position at the hall.

[0018] A car door 1a is provided on the wall surface on the landing side of the car 1, which is opened and closed when passengers get on and off the car 1, and an operation panel (not shown) that can be operated by passengers during normal operation and an operation switch panel 1b that can be opened and closed by workers during maintenance work are provided on the side of the car door 1a. Although not shown, the operation panel is provided with floor buttons that can be operated by passengers to specify the destination floor number, and open / close buttons that instruct the opening and closing of the door. In addition, in the operation switch panel 1b, various switches such as a maintenance dedicated switch and a maintenance switch that can be operated by workers during maintenance work are provided. Although not shown, each switch in the operation switch panel 1b is connected to a control panel 3, and outputs an operation signal corresponding to the on / off operation of each switch by the worker to the control panel 3.

[0019] The control panel 3 includes a circuit (microcomputer) in which a CPU (Central Processing Unit), memory, etc. are integrated on an LSI (Large-scale Integration) chip, and controls the overall operation of the elevator (car 1). The hardware configuration of the control panel 3 will be described later with reference to the drawings.

[0020] Although not shown, the control panel 3 is connected to the hoisting machine 5 and the limit switches 4a and 4b. The control panel 3 obtains information on the amount of winding of the main rope 8 (such as the number of windings) from the hoisting machine 5, and also obtains on / off information on the switches from the limit switches 4a and 4b.

[0021] The control panel 3 also detects (calculates) the current position of the car 1 based on the information acquired from the hoist 5. The detection process of the current position of the car 1 by the control panel 3 is performed not only during normal elevator operation but also during elevator maintenance work. During elevator maintenance work, the control panel 3 controls the display operation of various information performed on the hall display 12 on each floor based on the detected current position of the car 1. Specifically, the control panel 3 generates hall display data (described later) to be displayed on the hall display 12 on each floor, and outputs hall display data (described later) corresponding to each of the hall display 12 on each floor.

[0022] The limit switches 4a and 4b are devices that are activated to stop the elevator when the car 1 does not stop normally at the terminal floor (top floor, bottom floor) and goes too far. When the car 1 does not stop normally at the terminal floor (top floor, bottom floor) and goes too far, the limit switches 4a and 4b output an ON signal (information) to the control panel 3. In this embodiment, when the car 1 arrives at the bottom floor (first floor), the limit switch 4b is turned ON. Although not shown, the limit switch 4b is connected to a position sensor unit 5a (described later) of the hoisting machine 5 and outputs an ON / OFF signal (information) to the position sensor unit 5a (described later).

[0023] The hoist 5 drives the car 1 and the counterweight 6 to move up and down in the hoistway 2 via the main ropes 8. The hoist 5 also has a position sensor unit 5a (position detection unit) for detecting information related to the amount of winding of the main ropes 8, and outputs information detected by the position sensor unit 5a to the control panel 3. The position sensor unit 5a counts the number of times the main ropes 8 are wound up as information related to the amount of winding of the main ropes 8. The position sensor unit 5a also resets the number of times the main ropes 8 are wound up (returns it to the initial value) when an on signal (information) is input from the limit switch 4b, that is, when the car 1 has arrived at the lowest floor (first floor).

[0024] The hall display 12 is configured with a display device capable of displaying various information such as the current position of the car 1 and the moving direction (upward / downward) of the car 1. Specifically, the hall display 12 is configured with a display device capable of displaying characters, symbols, etc., such as a liquid crystal panel or a dot panel.

[0025] Furthermore, the indicator box 13 can be opened and closed by an operator during maintenance work, and for example, connectors for connecting the landing indicators 12 for each floor and the like are provided inside the indicator box 13. Although not shown, each connecting connector in the indicator box 13 is connected to the control panel 3, and an operation signal corresponding to an operator's insertion / removal operation for each connecting connector is output to the control panel 3.

[0026] [How to change the display mode of the platform display] In this embodiment, when an operator performs a specified operation on the elevator system 10 during maintenance and inspection, the display mode of the landing indicators 12 on each floor is changed from the normal operation mode to the maintenance and inspection mode, and the information displayed on the landing indicators 12 changes.

[0027] In this embodiment, the display mode of the hall indicator 12 is changed to the maintenance inspection mode by performing the following two operations as the predetermined operation. As a first operation constituting the predetermined operation, a worker operates (presses) both the dedicated maintenance switch and the maintenance switch in the operation switch panel 1b of the car 1. As a second operation constituting the predetermined operation, a worker opens the indicator box 13 provided at the hall on the lowest floor (first floor) and unplugs the connector of the hall indicator 12 on each floor. The order of the first operation and the second operation is arbitrary.

[0028] That is, in this embodiment, even if only one of the dedicated maintenance switch and the maintenance switch in the operation switch panel 1b of the car 1 is operated, the display mode of the hall indicator 12 does not change to the maintenance and inspection mode. The reason why such a complicated operation is performed as the operation for changing to the maintenance and inspection mode is to prevent the display mode of the hall indicator 12 from being erroneously changed to the maintenance and inspection mode by a simple operation and to ensure that the worker performs the operation for changing to the maintenance and inspection mode.

[0029] The predetermined operation for changing the display mode of the hall indicator 12 to the maintenance inspection mode is not limited to the above example, and any operation can be adopted. For example, the operation for changing the display mode of the hall indicator 12 to the maintenance inspection mode may be only the second operation described above. In this case, by performing the operation of unplugging the connection connector of the hall indicator 12 of each floor in the indicator box 13, the display mode of the hall indicator 12 changes to the maintenance inspection mode regardless of the state of the switch in the operation switch panel 1b of the car 1.

[0030] In this embodiment, the maintenance inspection mode is released, for example, when the maintenance switch is turned off. The method of releasing the maintenance inspection mode, i.e., the operation of changing to the normal operation mode, is not limited to this example and can be set arbitrarily.

[0031] [Various information displayed on the landing display during maintenance work] In the maintenance inspection mode, the hall indicator 12 displays a message indicating that maintenance inspection is in progress, and also displays symbols indicating both the relative positional relationship between the current position of the car 1 and the halls on each floor, and the risk of falling when the hall doors 11 on each floor are opened. Normally, the work performed during elevator maintenance inspection includes work performed by workers getting inside the car 1 and work performed by workers standing on the top surface of the car 1. Therefore, this information during maintenance inspection is important information for ensuring the safety of workers.

[0032] Specifically, as a message indicating that maintenance and inspection is being performed, the message "Maintenance inspection" is displayed on the hall display 12. As a symbol (hereinafter referred to as "car position / risk symbol") representing both the relative positional relationship between the current position of the car 1 and the landing on each floor, and the current risk of falling at the landing on each floor, for example, a square mark, a star mark, a triangle mark, or the like is displayed on the hall display 12. That is, in this embodiment, both information regarding the relative positional relationship between the current position of the car 1 and the landing on each floor, and the current risk of falling at the landing on each floor are represented by a single symbol.

[0033] In the maintenance inspection mode, information on the relative positional relationship between the current position of the car 1 and the landing of each floor, and information on the car position and danger level symbol displayed on the landing indicator 12 of each floor are transmitted from the control panel 3 to the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager. Then, on the display units of each terminal device of the worker and the building manager, both information on the relative positional relationship between the current position of the car 1 in the building and the landing of each floor, and information on the car position and danger level symbol displayed on the landing indicator 12 of each floor are displayed together in one schematic diagram. The manner in which various information is displayed on each terminal device of the worker and the building manager in the maintenance inspection mode will be described later with reference to the drawings.

[0034] [Type and meaning of cage position and danger level symbols] Fig. 2 is a diagram showing the car position and types of danger level symbols displayed on the hall indicator 12 of each floor in the maintenance inspection mode, and the relationship between the current position of the car 1 and the types of car position and danger level symbols. Fig. 2 shows an example in which the car 1 is stopped in a position where the door can be opened and closed during normal operation on a specific floor (a position where the position of the bottom surface of the car 1 is within a certain distance from the landing level of the specific floor), that is, in the so-called door zone.

[0035] In the example shown in Fig. 2, a square mark is displayed as the car position / risk level symbol on the hall indicator 12 of a predetermined floor corresponding to the current position of the car 1. The predetermined floor is a floor where a worker can open the hall door 11 of the floor and get into the car 1, and where there is no risk of falling to the bottom (pit 9) of the elevator shaft 2. In other words, the square mark car position / risk level symbol means that the floor on which the square mark is displayed is a floor corresponding to the current position of the car 1, a floor where a worker can get into the car 1, and a floor where there is no risk of falling.

[0036] A star symbol is displayed as a car position / risk level symbol on the platform indicator 12 of the floor one level above the predetermined floor. In the example shown in Fig. 2, the floor one level above the predetermined floor is a floor where workers can board the upper surface of the car 1 and where there is no risk of falling onto the upper surface of the car 1. In other words, the star symbol car position / risk level symbol means that the floor on which the star symbol is displayed is a floor where the car 1 is located slightly below the floor, where workers can board the car 1, and where there is no risk of falling.

[0037] The platform indicator 12 for the floor two floors above the specified floor displays one triangular mark with its apex pointing downward as the car position / hazard level symbol. In the following, a car position / hazard level symbol with one triangular mark with its apex pointing downward is referred to as a "single-lower triangle mark." In the example shown in FIG. 2, the floor two floors above the specified floor is a floor where workers cannot board the upper surface of the car 1 and where there is a risk of workers falling onto the upper surface of the car 1 and being injured. In addition, the single-lower triangle mark car position / hazard level symbol indicates that the current position of the car 1 is below the floor on which the single-lower triangle mark car position / hazard level symbol is displayed, depending on the direction of the apex of the triangle mark (downward). In other words, the car position / hazard level symbol with a single downward triangle mark means that the floor on which the single downward triangle mark is displayed is a floor below which car 1 is located, the floor is not accessible to workers on car 1, and there is a risk of falling.

[0038] On the platform indicator 12 of the floor three floors above the specified floor, two triangular marks with downward apexes are displayed as car position / hazard level symbols. In the following, a car position / hazard level symbol with two triangular marks with downward apexes is referred to as a "downward double triangle mark." In the example shown in FIG. 2, the floor three floors above the specified floor is a floor where workers cannot get on to the upper surface of the car 1, and is a floor where there is a risk that workers may fall onto the upper surface of the car 1 and be injured. In addition, the car position / hazard level symbol with a downward double triangle mark indicates that the current position of the car 1 is below the floor on which the car position / hazard level symbol with a downward double triangle mark is displayed, depending on the direction of the apex of the triangle mark (downward). Furthermore, the car position / hazard level symbol with a double-down triangle has two downward-pointing triangles, which indicates that the current position of car 1 is even lower than the symbol with one downward-pointing triangle (single-down triangle). In other words, the car position / hazard level symbol with a double-down triangle means that the floor on which the single-down triangle is displayed is a floor on which car 1 is located significantly below the floor in question, where workers cannot board car 1, and where there is a risk of falling.

[0039] Although not shown in Fig. 2, in this embodiment, the car position / hazard level symbol with a double triangle mark at the bottom is also displayed on the platform indicators 12 of floors four or more above the predetermined floor (see Fig. 7 described later). That is, the platform indicators 12 of floors three or more above the predetermined floor display a double triangle mark at the bottom as the car position / hazard level symbol.

[0040] On the other hand, in the example shown in FIG. 2, the platform indicator 12 for the floor one level below the predetermined floor displays one triangular mark with its apex pointing upward as the car position / hazard level symbol. In the following, the car position / hazard level symbol with one triangular mark with its apex pointing upward is referred to as the "upper single triangular mark." In the example shown in FIG. 2, the floor one level below the predetermined floor is a floor where there is a risk of workers falling to the bottom (pit 9) of the elevator 2 and being injured. In addition, the car position / hazard level symbol with the upper single triangular mark indicates that the current position of the car 1 is above the floor on which the car position / hazard level symbol with the upper single triangular mark is displayed, based on the orientation (upward) of the apex of the triangular mark. In other words, the car position / hazard level symbol with the upper single triangular mark means that the floor on which the upper single triangular mark is displayed is the floor on which the car 1 is located above the floor on which the car 1 is located and is a floor on which there is a risk of falling.

[0041] On the platform indicator 12 of the floor two levels below the designated floor, two triangular marks with their apexes pointing upward are displayed as car position / hazard level symbols. In the following, a car position / hazard level symbol with two triangular marks with their apexes pointing upward is referred to as a "double triangle mark up". In the example shown in FIG. 2, the floor two levels below the designated floor is a floor where there is a risk of workers falling to the bottom (pit 9) of the elevator 2 and being injured. In addition, the double triangle mark car position / hazard level symbol indicates that the current position of the car 1 is higher than the floor on which the double triangle mark car position / hazard level symbol is displayed, due to the orientation (upward) of the apex of the triangle mark. Furthermore, the double triangle mark car position / hazard level symbol indicates that the current position of the car 1 is higher than the floor on which the single triangle mark with its apex pointing upward is displayed, due to the two triangle marks with their apexes pointing upward. In other words, the car position / hazard level symbol with a double triangle mark above means that the floor on which the double triangle mark above is displayed is a floor on which car 1 is located quite high above the floor in question, and there is a risk of falling.

[0042] Although not shown in Fig. 2, in this embodiment, the platform indicators 12 of three or more floors below the predetermined floor also display the car position / hazard level symbol with a double triangle mark on top (see Fig. 7 described later). That is, the platform indicators 12 of two or more floors below the predetermined floor display a double triangle mark on top as the car position / hazard level symbol.

[0043] As described above, in the example of the cage position / risk level symbol shown in FIG. 2, a triangle mark indicates that there is a risk of falling to the upper surface of the cage 1 or the pit 9 in the elevator 2 during maintenance work, and symbols other than a triangle mark (square mark and star mark) indicate that there is no risk of falling. In addition, in the example of the cage position / risk level symbol shown in FIG. 2, the direction of the apex of the triangle mark (downward or upward) indicates the relative positional relationship (downward or upward) between the current position of the cage 1 and the landing of each floor. Furthermore, in the example of the cage position / risk level symbol shown in FIG. 2, the number of triangle marks indicates the distance of the landing of each floor from the current position of the cage 1. In other words, by using the cage position / risk level symbol shown in FIG. 2, both information on the relative positional relationship between the current position of the cage 1 and the landing of each floor during maintenance inspection, and the current risk of falling at the landing of each floor can be expressed by a single symbol.

[0044] [Display of information during maintenance work] Fig. 3 is a diagram showing the display mode of various information displayed on the hall indicator 12 of each floor during maintenance work in this embodiment. Specifically, Fig. 3 shows the switching display mode of each character in the word "tenkenchuu" displayed on the hall indicator 12 of each floor during maintenance work, and the car position and danger level symbol. Note that Fig. 3 shows, as an example, the display mode on the hall indicator 12 of a floor where a star symbol in Fig. 2 is displayed, that is, a floor where the car 1 is located slightly below, where a worker can get on the car 1, and where there is no risk of falling.

[0045] At floors where a star is displayed as the car location / hazard level symbol, as shown in FIG. 3, the characters "TE", "N", "KE", "N", "CHI", "YU" and "U" are displayed in this order on the hall display 12, and then the car location / hazard level symbol with a star is displayed. After the star-shaped car location / hazard level symbol is displayed, the display returns to the character "TE", and then the display of each character and the car location / hazard level symbol is repeated. At this time, in order to allow workers and the like to more reliably recognize the current position of the car 1 and whether there is a risk of falling, the display time of the car location / hazard level symbol is made longer than the display time of each character. Specifically, the display time of the car location / hazard level symbol is set to, for example, 3 to 5 seconds.

[0046] In addition, in the hall indicators 12 of other floors where symbols other than a star are displayed as the car position / hazard level symbols, only the type of car position / hazard level symbol displayed is different, and the display operation of each letter and car position / hazard level symbol is performed in the same manner as the display mode shown in Figure 3.

[0047] The display manner of the wording "Tenkenchuu" and the car position / hazard level symbols on the hall display 12 on each floor is not limited to the example shown in Fig. 3. Fig. 4 is a diagram showing another display manner of various information (the wording "Tenkenchuu" and the car position / hazard level symbols) displayed on the hall display 12 on each floor during maintenance work.

[0048] In the example shown in FIG. 4, each character constituting the phrase "Tenkenchuyuu" and a car location / hazard level symbol are displayed simultaneously on the landing display 12. At this time, each character (such as "te") is displayed at the top of the display screen of the landing display 12, and a car location / hazard level symbol (such as a star symbol) is displayed below it. In the example shown in FIG. 4, the operation of displaying each character "te", "n", "ke", "n", "chi", "yu" and "u" in this order is repeated. At this time, even if the displayed character is switched, the same car location / hazard level symbol (in the example shown in FIG. 4, a star symbol) is always displayed at the bottom of the display screen of the landing display 12 (below the display location of each character). Also, in this example, in the landing display 12 of other floors where a symbol other than a star symbol is displayed as the car location / hazard level symbol, only the displayed car location / hazard level symbol is different, and the display operation of each character and the car location / hazard level symbol is performed in the same manner as the display mode shown in FIG. 4.

[0049] In the display mode shown in Figures 3 and 4, an example has been described in which the words "TENKENCHUU" are displayed to indicate that maintenance inspection is in progress; however, the present invention is not limited to this, and any wording can be used as long as it makes it clear that maintenance inspection is in progress.

[0050] In addition, in the display mode shown in FIG. 3 and FIG. 4, an example has been described in which both the wording "TEN-KEN-CHUU" and the car position / hazard level symbol are displayed on the landing display 12 of each floor in the maintenance inspection mode, but the present invention is not limited to this. In the maintenance inspection mode, for example, the landing display 12 may be configured to display only the car position / hazard level symbol. However, when the wording ("TEN-KEN-CHUU") indicating that maintenance inspection is being performed is displayed as in this embodiment, the worker can reliably understand that the display mode of the landing display 12 has switched to the maintenance inspection mode. In this case, the maintenance work can be performed by trusting the car position / hazard level symbol displayed on the landing display 12 of each floor, so the display mode of this embodiment is superior in terms of safety. In addition, in this case, it is possible to clearly recognize that maintenance inspection is currently being performed for people other than the worker at the landing (for example, residents of the building, etc.).

[0051] [Display conditions for square and star symbols for cage position and danger level] During maintenance and inspection, the current position (stop position) of the car 1 is not necessarily the door zone position. For example, when the elevator makes an emergency stop due to an earthquake or the like, the car 1 may not stop at the door zone position. In addition, for example, if the distance between floors is long, a worker may not be able to get on the top part of the car 1 from the floor one floor above the stop floor of the car 1, that is, the worker may fall onto the car 1 and be injured. Furthermore, for example, if the current position of the car 1 is only slightly shifted from the door zone position, the worker may be able to open the landing door 11 and get into the car 1. In this embodiment, taking these cases into consideration, the following display conditions are specified for the car position and danger level symbols of square marks and star marks shown in FIG. 2.

[0052] (1) Display conditions for star-marked cage positions and danger level symbols Fig. 5 is a diagram showing the display conditions of the star-shaped car position / hazard level symbol. In the example shown in Fig. 5, the floor surface position of the hall on a specific floor where the star-shaped car position / hazard level symbol may be displayed on the hall indicator 12 in the elevator system 10 is set to Z mm.

[0053] In this embodiment, as shown in Fig. 5, if the position of the upper surface of the car 1 (hereinafter referred to as "car ceiling") is within the range of Z+200mm to Z-600mm, a star is displayed as a car position / risk level symbol on the hall indicator 12 of the specific floor. In other words, if the position of the car ceiling of the car 1 is within the range of +200mm to -600mm with respect to the floor surface position (Zmm) of the hall of the specific floor, it is determined that the worker can get on the car 1 from the specific floor and there is no risk of falling.

[0054] The display conditions for the star-marked car position / hazard level symbols are not limited to the example shown in Fig. 5. The display conditions for the star-marked car position / hazard level symbols can be individually and appropriately set according to the specifications of the elevator system 10, such as the size of the car 1 and the distance between floors (building structure). In addition, the display conditions for the star-marked car position / hazard level symbols can be appropriately set so as to be compatible with the specifications of any elevator system 10, regardless of the specifications of the elevator system 10.

[0055] Also, even if the platform indicator 12 of the floor one level below the specific floor displays a square car position / hazard level symbol, the platform indicator 12 of the specific floor may not display a star car position / hazard level symbol depending on the distance between the specific floor and the floor one level below. Specifically, if the distance between the specific floor and the floor one level below is wide and the position of the car ceiling of the car 1 is lower than the Z-600mm position, it is determined that the worker cannot get on the car 1 from the specific floor and there is a risk of falling. Therefore, in this case, even if the platform indicator 12 of the floor one level below the specific floor displays a square car position / hazard level symbol, the platform indicator 12 of the specific floor displays a single downward triangle (see Figure 2) car position / hazard level symbol instead of a star.

[0056] (2) Conditions for displaying square cage position and danger level symbols Fig. 6 is a diagram showing the display conditions of the square car position / hazard level symbol. In the example shown in Fig. 6, the floor surface position of the hall at a predetermined floor where the square car position / hazard level symbol may be displayed on the hall display 12 in the elevator system 10 is set to Z0 mm.

[0057] In this embodiment, when the current position of the elevator car 1 satisfies both conditions (a) and (b) in Figure 6 relative to the floor surface position (Z0 mm) of the platform at a specified floor, a square mark is displayed on the platform indicator 12 at the specified floor as the elevator position and risk level symbol.

[0058] Specifically, the condition shown in state (a) in FIG. 6 is that the position of the car ceiling of the car 1 exceeds Z0+200 mm, and the condition shown in state (b) in FIG. 6 is that the lower end position of the apron 1c provided on the bottom surface of the car 1 is Z0 mm or less. Therefore, if the current position of the car 1 is within the range from the position of state (a) in FIG. 6 to the position of state (b) in FIG. 6 with respect to the floor surface position (Z0 mm) of the landing at a specified floor, a square mark is displayed as the car position / risk level symbol on the landing indicator 12 at the specified floor. In other words, if the current position of the car 1 with respect to the specified floor is within the range from the position of state (a) in FIG. 6 to the position of state (b) in FIG. 6, it is determined that the worker can get into the car 1 from the specified floor and there is no risk of falling.

[0059] 6, the manner in which the worker gets into the car 1 is different between state (a) and state (b). In state (a) in FIG. 6, the car door 1a of the car 1 is located below the landing door 11 of the specified floor, so the entrance of the car 1 is shifted downward from the entrance of the landing. Therefore, in this case, the worker gets into the car 1 from the landing of the specified floor through the upper part of the entrance of the car 1.

[0060] On the other hand, in the state (b) in Fig. 6, the car door 1a of the car 1 is located above the landing door 11 of the specified floor, so the entrance of the car 1 is shifted upward from the entrance of the landing. Therefore, in this case, the worker gets into the car 1 from the landing of the specified floor through the lower part of the entrance of the car 1 (climbs up). At this time, the worker gets into the car 1 from the lower part of the entrance of the car 1, for example, by using a stepladder or the like as necessary.

[0061] Even when the car 1 is located below the landing door 11 of the specified floor as in the state (a) in FIG. 6, if the position of the car ceiling of the car 1 does not exceed Z+200 mm, the landing indicator 12 of the specified floor displays the car position / hazard level symbol in the form of a star (see FIG. 5). Even when the car 1 is located above the landing door 11 of the specified floor as in the state (b) in FIG. 6, if the lower end position of the apron 1c of the car 1 exceeds the floor level Z0 mm of the landing of the specified floor, a gap is created between the apron 1c and the floor level of the landing of the specified floor. Therefore, in this case, there is a possibility that a person or object may fall into the pit 9 from the gap, so the landing indicator 12 of the specified floor displays the car position / hazard level symbol in the form of an upper single triangle (see FIG. 2).

[0062] [Changes in information displayed on platform indicators when elevators move during maintenance inspections] During maintenance inspection, maintenance inspection is usually performed by having a worker enter the car 1 and move it, and maintenance inspection is also performed by having a worker stand on the car 1 and move it. Note that during these maintenance inspections, the car 1 is controlled to ascend and descend at a slower speed than the speed of the car 1 during normal operation. In this embodiment, even when the car 1 is moved during maintenance inspection, the information displayed on the hall indicator 12 on each floor (a message indicating that maintenance inspection is being performed and the car position and danger level symbol) is appropriately changed in accordance with the movement of the car 1.

[0063] Fig. 7 is a diagram showing how information displayed on the landing indicators 12 of each floor changes when the car 1 rises from the first floor during maintenance and inspection in the elevator system 10 of this embodiment. Situation (a) in Fig. 7 shows a case where the car 1 is located in the door zone of the first floor, and situation (b) in Fig. 7 shows a case where the car 1 is located in the door zone of the second floor. Moreover, situation (c) in Fig. 7 shows a case where the car 1 is located in the door zone of the third floor, and situation (d) in Fig. 7 shows a case where the car 1 is located in the door zone of the fourth floor.

[0064] In addition, in order to simplify the explanation, in the explanation of Fig. 7, the explanation of the display operation of the wording "Tenkenchuu" on the platform indicator 12 of each floor will be omitted. Also, here, an example will be explained in which, when the elevator car 1 is located in the door zone of each floor, the position of the elevator car 1's ceiling is in a range of +200mm to -600mm with respect to the floor surface position (Zmm) of the platform of the floor one floor higher. That is, in this example, an example of a building will be explained in which, when the elevator car 1 is located in the door zone of each floor, a star-shaped elevator car position / risk level symbol is always displayed on the platform indicator 12 of the floor one floor higher (directly above).

[0065] First, when the car 1 is located in the door zone on the first floor, a square mark is displayed as the car position / risk level symbol on the first floor platform indicator 12, and a star mark is displayed as the car position / risk level symbol on the second floor platform indicator 12, as shown in situation (a) in Fig. 7. Also, in situation (a), a single downward triangle mark is displayed as the car position / risk level symbol on the third floor platform indicator 12, and a double downward triangle mark is displayed as the car position / risk level symbol on each of the fourth and fifth floor platform indicators 12.

[0066] After the situation (a), when the car 1 rises and the current position of the car 1 reaches the position of the door zone on the second floor, a square mark is displayed as the car position and danger level symbol on the platform indicator 12 on the second floor, as shown in situation (b) in Fig. 7. Also, in situation (b), an upper single triangle mark is displayed as the car position and danger level symbol on the platform indicator 12 on the first floor, and a star mark is displayed as the car position and danger level symbol on the platform indicator 12 on the third floor. Furthermore, in situation (b), a lower single triangle mark is displayed as the car position and danger level symbol on the platform indicator 12 on the fourth floor, and a lower double triangle mark is displayed as the car position and danger level symbol on the platform indicator 12 on the fifth floor.

[0067] After the situation (b), when the car 1 rises and its current position reaches the position of the door zone on the third floor, a square mark is displayed as the car position and danger level symbol on the platform indicator 12 on the third floor, as shown in situation (c) in Fig. 7. Also, in situation (c), a double triangle mark with an upper part is displayed as the car position and danger level symbol on the platform indicator 12 on the first floor, and a single triangle mark with an upper part is displayed as the car position and danger level symbol on the platform indicator 12 on the second floor. Furthermore, in situation (c), a star mark is displayed as the car position and danger level symbol on the platform indicator 12 on the fourth floor, and a single triangle mark with a lower part is displayed as the car position and danger level symbol on the platform indicator 12 on the fifth floor.

[0068] Furthermore, after situation (c), when the car 1 rises and its current position reaches the position of the door zone on the fourth floor, a square mark is displayed as the car position / risk level symbol on the platform indicator 12 on the fourth floor, as shown in situation (d) in Fig. 7. Also, in situation (d), a double triangle mark with an upper side is displayed as the car position / risk level symbol on each of the platform indicators 12 on the first and second floors, and a single triangle mark with an upper side is displayed as the car position / risk level symbol on the platform indicator 12 on the third floor. Furthermore, in situation (d), a star mark is displayed as the car position / risk level symbol on the platform indicator 12 on the fifth floor.

[0069] [Changes in display information on platform indicators accompanying elevator car movements during maintenance and inspection (variation examples)] Here, an example (variation) will be described in which, when the distance between the first and second floors is wide and the car 1 is located in the door zone on the first floor, the position of the car ceiling of the car 1 is not within the range of +200 mm to -600 mm with respect to the floor surface position (Z mm) of the landing on the second floor. The structure of the building other than the wide distance between the first and second floors is the same as the structure of the building described in Fig. 7.

[0070] Fig. 8 is a diagram showing how information displayed on the hall indicators 12 of each floor changes when the car 1 moves upward from the first floor to the second floor during maintenance inspection in the elevator system 10 of the modified example. In the explanation of Fig. 8, the configuration of the first to third floors of the building is shown, and the configuration of the fourth and fifth floors is omitted for the sake of simplicity. Furthermore, in the explanation of Fig. 8, the explanation of the display operation of the word "Tenkenchuu" on the hall indicators 12 of each floor is omitted for the sake of simplicity.

[0071] Situation (a) in Fig. 8 is a case where car 1 is located in the door zone on the first floor. In situation (a), the difference between the position of the car ceiling of car 1 and the floor surface position of the landing on the second floor is greater than 600 mm, so the second floor is a floor where workers cannot get on car 1 and there is a risk of workers falling onto car 1.

[0072] Therefore, in situation (a), a square mark is displayed as the car position / hazard level symbol on the first floor platform indicator 12, and a single triangle mark with a downward facing edge is displayed as the car position / hazard level symbol on the second floor platform indicator 12. Also, in situation (a), a double triangle mark with a downward facing edge is displayed as the car position / hazard level symbol on the third floor platform indicator 12. Although not shown, in situation (a), double triangle mark with a downward facing edge is displayed as the car position / hazard level symbol on each of the platform indicators 12 on the fourth and fifth floors.

[0073] 8, the situation (b) is a case where the car 1 has risen slightly from the situation (a). Specifically, the situation (b) is a case where the difference between the position of the car ceiling of the car 1 and the floor surface of the landing on the second floor is smaller than 600 mm, and the car 1 has risen to a position where there is no gap between the apron 1c of the car 1 and the floor surface of the landing on the first floor.

[0074] In situation (b), the position of the car 1 on the first floor is higher than in situation (a), but since there is no gap between the apron 1c of the car 1 and the floor surface of the landing on the first floor, the first floor is a floor where workers can get into the car 1 and there is no risk of falling. Also, in this situation, the position of the car ceiling of the car 1 is within a range of +200mm to -600mm with respect to the floor surface position (Zmm) of the landing on the second floor, so the second floor is a floor where workers can get onto the car 1 and there is no risk of falling onto the car 1.

[0075] Therefore, in situation (b), a square mark is displayed as the car position / risk level symbol on the first floor platform indicator 12, and a star mark is displayed as the car position / risk level symbol on the second floor platform indicator 12. Also, in situation (b), a single downward triangle mark is displayed as the car position / risk level symbol on the third floor platform indicator 12. Although not shown, in situation (b), a double downward triangle mark is displayed as the car position / risk level symbol on each of the platform indicators 12 on the fourth and fifth floors.

[0076] Situation (c) in Fig. 8 is a case where the car 1 rises slightly from situation (b). Specifically, situation (c) is a case where the position of the car ceiling of the car 1 is almost the same as the floor surface of the landing on the second floor, and the car 1 rises to a position where a gap occurs between the apron 1c of the car 1 and the floor surface of the landing on the first floor.

[0077] In situation (c), a gap occurs between the apron 1c of the car 1 and the floor of the landing on the first floor, so the first floor is a floor where there is a risk of falling into the pit 9. Also, in situation (c), the position of the car ceiling of the car 1 is within a range of +200 mm to -600 mm from the floor position (Z mm) of the landing on the second floor, so the second floor is a floor where workers can get on to the car 1 and there is no risk of falling.

[0078] Therefore, in situation (c), the first floor platform indicator 12 displays a single triangle on top as the car position / risk level symbol, and the second floor platform indicator 12 displays a star as the car position / risk level symbol. Also, in situation (c), the third floor platform indicator 12 displays a single triangle on the bottom as the car position / risk level symbol. Although not shown, in situation (c), each of the fourth and fifth floor platform indicators 12 displays a double triangle on the bottom as the car position / risk level symbol.

[0079] Situation (d) in Fig. 8 is a case where the car 1 rises slightly from situation (c). Specifically, situation (d) is a case where the car 1 rises until the position of the car ceiling of the car 1 becomes higher than the floor surface of the landing on the second floor, and the difference between the two exceeds 200 mm.

[0080] In situation (d), a gap occurs between the apron 1c of car 1 and the floor of the first floor landing, making the first floor a floor where there is a risk of falling into the pit 9. Also, in situation (d), the position of the car ceiling of car 1 is more than +200 mm above the floor position (Z mm) of the second floor landing, making the second floor a floor where workers can get into car 1 and where there is no risk of falling. Note that in situation (d), the third floor is a floor where workers cannot get onto car 1 and where there is a risk of falling onto car 1.

[0081] Therefore, in situation (d), the first floor platform indicator 12 displays a single triangle on top as the car position / risk level symbol, and the second floor platform indicator 12 displays a square as the car position / risk level symbol. Also, in situation (d), the third floor platform indicator 12 displays a single triangle on the bottom as the car position / risk level symbol. Although not shown, in situation (d), each of the fourth and fifth floor platform indicators 12 displays a double triangle on the bottom as the car position / risk level symbol.

[0082] If the elevator car 1 rises further after the situation (d) and the current position of the elevator car 1 reaches the position of the door zone on the second floor, the situation becomes similar to the situation (b) in Fig. 7, and the information displayed on the platform indicators 12 on each floor also becomes the same as the display mode of the situation (b) in Fig. 7. Then, when the elevator car 1 rises further thereafter, the display control of the platform indicators 12 on each floor is performed as explained in the situation after the situation (b) in Fig. 7.

[0083] [Information displayed on each terminal device of workers and building managers during maintenance inspections] In this embodiment, as described above, when the maintenance inspection mode is activated, information on both the relative positional relationship between the current position of the car 1 and the landing of each floor, and the car position and danger level symbol displayed on the landing indicator 12 of each floor, is transmitted from the control panel 3 to the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager. Then, on the display units of the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager, this information is displayed together in a schematic form.

[0084] FIG. 9 is a diagram showing various information displayed on the display units (display unit 57 described later) of the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager during the maintenance and inspection mode.

[0085] During maintenance and inspection, as shown in Fig. 9, diagrams simulating the physical shapes of the elevator shaft 2, the car 1, the pit 9, and the landings on each floor (landing doors 11 and landing indicators 12) in the building are displayed on the display screens of the worker's mobile terminal 21 and the building manager's information processing terminal 22. At this time, the schematic diagrams of the car 1 and the landings on each floor are displayed so that the relative positional relationship between the schematic diagram of the car 1 in the building and the schematic diagram of the landings on each floor corresponds to the information on the relative positional relationship between the current position of the car 1 and the landings on each floor transmitted from the control panel 3.

[0086] Furthermore, each schematic diagram of the platform indicator 12 of the platform at each floor displayed on each terminal device of the worker and the building manager displays a car position / hazard level symbol corresponding to the information on the type of car position / hazard level symbol displayed on the platform indicator 12 at each floor transmitted from the control panel 3. In this embodiment, on the display screen of each terminal device, the schematic diagram of the platform at each floor displays the corresponding floor number, and the schematic diagram of the platform at a floor where a star is displayed displays a message indicating that the floor is a floor at which the worker can board the platform 1.

[0087] The meanings of the car position and danger level symbols displayed on the hall display 12 are also displayed on the display screen of the worker's mobile terminal 21. Information regarding the meanings of the car position and danger level symbols is automatically displayed on the display screen of the mobile terminal 21 when an application is started on the mobile terminal 21 during maintenance and inspection mode operation. However, the present invention is not limited to this, and information regarding the meanings of the car position and danger level symbols may also be included in the display data transmitted from the control panel 3 to each terminal device. The meanings of the car position and danger level symbols may also be displayed on the display screen of the information processing terminal 22 of the building manager.

[0088] The contents of the various information displayed on the terminal devices of the worker and the building manager are not limited to the example shown in Fig. 9. For example, in addition to the information shown in Fig. 9, the display screen of the mobile terminal 21 of the worker may display various pieces of advice that are considered necessary when performing the maintenance work.

[0089] For example, as in state (b) in Fig. 6, if a stepladder is needed when a worker climbs up from the platform of the floor where the worker is located to enter the car 1, information to that effect may be displayed. By displaying such advice on the mobile terminal 21 of the worker, the work efficiency of the worker can be improved. Note that, in addition to the information shown in Fig. 9, various kinds of advice considered necessary for carrying out the maintenance work may also be displayed on the display screen of the information processing terminal 22 of the building manager, in the same way as the mobile terminal 21 of the worker.

[0090] In the example shown in Fig. 9, the components to be displayed on the display screen of each terminal device of the worker and the building manager are the elevator shaft 2, the car 1, the pit 9, and the landings on each floor in the building, but the present invention is not limited to this. For example, some of these components may not be displayed on the display screen of each terminal device. In addition, in the example shown in Fig. 9, a diagram simulating the physical shape of other components (e.g., the control panel 3, the hoist 5, etc.) on the building side of the elevator system 10 may be displayed on the display screen of each terminal device.

[0091] By displaying the above-mentioned various information on the terminal devices of the workers and building managers, the workers and building managers can easily grasp at a glance the current state of the entire site during maintenance and inspection, the progress of the maintenance and inspection work, etc. In addition, the workers can easily grasp at a glance the fall hazard level on the floor they are on via the display screen of the mobile terminal 21, further reducing the risk of falls.

[0092] [Control panel function block configuration] Fig. 10 is a functional block diagram of the control panel 3 of the elevator system 10 according to one embodiment of the present invention. Note that Fig. 10 only shows functional units related to the information display process on the hall indicator 12 of each floor, which is performed during maintenance work (during maintenance and inspection mode operation). Fig. 10 also shows each component connected to the control panel 3.

[0093] 10, the control panel 3 includes an information collecting unit 31, a position calculating unit 32, and a position determination processing unit 33. In the control panel 3, the information collecting unit 31 is connected to the position calculating unit 32, and the position calculating unit 32 is connected to the position determination processing unit 33 in terms of processing functions.

[0094] The information collecting unit 31 is connected to the position sensor unit 5a provided on the hoisting machine 5, and acquires information (such as the number of times of winding) related to the amount of winding of the main rope 8 from the position sensor unit 5a. Then, the information collecting unit 31 outputs the acquired information (such as the number of times of winding) related to the amount of winding of the main rope 8 to the position calculating unit 32.

[0095] The position calculation unit 32 calculates the current position of the car 1 based on the information on the winding amount of the main ropes 8 (the number of windings, etc.) input from the information collection unit 31. At this time, in this embodiment, the position calculation unit 32 calculates the current positions of the car ceiling of the car 1 and the lower end of the apron 1c using the information on the winding amount of the main ropes 8 (the number of windings, etc.), the size of the car 1, the size of the apron 1c, etc. Then, the position calculation unit 32 outputs the calculated information on the current position of the car 1 to the position determination processing unit 33.

[0096] The position determination processing unit 33 compares the information on the current position of the car 1 input from the position calculation unit 32 with the floor position of the landing at each floor, and determines the type of car position and danger level symbol to be displayed on the landing display 12 at each floor based on the comparison result. At this time, the position determination processing unit 33 determines the type of car position and danger level symbol based on the meaning and display conditions of each car position and danger level symbol explained in Fig. 2, Fig. 5, and Fig. 6 above. In addition, the position determination processing unit 33 generates display data (hereinafter referred to as "landing display data") of various information to be displayed on the landing display 12 at each floor based on the determined type of car position and danger level symbol to be displayed on the landing display 12 at each floor.

[0097] The platform display data includes display data for each character in the phrase "Tenkenchuu" and display data for the car position and hazard level symbol. The display data for each character in the phrase "Tenkenchuu" is display data common to each floor, but the display data for the car position and hazard level symbol differs for each floor. Therefore, the content of the platform display data differs depending on the floor to which it is output, so the position determination processing unit 33 generates platform display data for each floor. Then, the position determination processing unit 33 outputs the corresponding platform display data to the platform indicator 12 on each floor.

[0098] Furthermore, the position determination processing unit 33 creates display data (hereinafter referred to as "terminal display data") to be transmitted to the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager based on the result of comparing the information on the current position of the car 1 with the floor surface position of the landing at each floor. Specifically, the position determination processing unit 33 creates terminal display data that can display both information on the relative positional relationship between the current position of the car 1 and the landing at each floor, and the car position and the type of danger level symbol displayed on the landing display 12 at each floor, together in a schematic manner (see FIG. 9). Then, the position determination processing unit 33 transmits the created terminal display data to the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager via the external communication network 20.

[0099] In this embodiment, the various processing functions of the various functional blocks of the control panel 3 described above are controlled by software, that is, by a processor (CPU 41 described below) interpreting and executing a program for implementing each function. However, the present invention is not limited to this, and for example, some or all of the various functional blocks included in the control panel 3 may be configured by hardware.

[0100] [Control panel hardware configuration] FIG. 11 is a block diagram showing an example of a hardware configuration of the control panel 3 of the elevator system 10 according to one embodiment of the present invention.

[0101] 11, the control panel 3 is configured as an information processing device including a CPU 41, a memory 42, a storage device 43, an external device I / F (interface) 44, and a bus line 45 connecting these components. The memory 42 is configured as a RAM (Random Access Memory), and the storage device 43 is configured as a ROM (Read Only Memory). The external device I / F 44 includes various interfaces for executing transmission / reception processing and input / output processing of various data (various information) between various devices provided outside the control panel 3.

[0102] Various processes controlled by the control panel 3 are realized by the CPU 41 loading into the memory 42 programs and data previously stored in the storage device 43 and executing them. Therefore, for example, the display control of various information on the landing indicators 12 of each floor performed during the above-mentioned maintenance inspection mode operation is also executed by the control panel 3 (CPU 41).

[0103] [Hardware configuration of the worker's mobile device and the building manager's information processing device] In the elevator system 10 of this embodiment, the worker's mobile terminal 21 and the building manager's information processing terminal 22 can be configured with an arithmetic processing device such as a computer device. Fig. 12 is a block diagram showing an example of the hardware configuration of a computer device 50 applicable as the worker's mobile terminal 21 and the building manager's information processing terminal 22.

[0104] The computer device 50 includes a CPU 51, a ROM 52, and a RAM 53, all connected to a bus line 58. The computer device 50 also includes a non-volatile storage 54, a network I / F 55, an input unit 56, and a display unit 57, all connected to the bus line 58. Although not shown, the computer device 50 also includes various interfaces used when executing input / output processing of various data (various information) between the computer device 50 and external devices.

[0105] The CPU 51 reads out from the ROM 52 to the RAM 53 and executes the program code of the software for realizing various processing functions provided in each of the worker's mobile terminal 21 and the building manager's information processing terminal 22. At this time, variables and parameters generated during the calculation process are also temporarily written to the RAM 53.

[0106] The non-volatile storage 54 can be configured, for example, with a hard disk drive (HDD), a solid state drive (SSD), a flexible disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a non-volatile memory, etc. In addition to an operating system (OS) and various parameters, the non-volatile storage 54 stores programs for causing the computer device 50 to function as the worker's mobile terminal 21 and the building manager's information processing terminal 22. Note that data such as programs, tables, and files that realize the various functions of the worker's mobile terminal 21 and the building manager's information processing terminal 22 may be stored in a recording medium such as an IC card, an SD card, or a DVD, in addition to the ROM 52 or the non-volatile storage 54.

[0107] The network I / F 55 is configured by, for example, a network interface card (NIC) or the like, and transmits and receives various data to and from each device connected via wireless communication.

[0108] The input unit 56 is composed of, for example, keys and buttons, and generates an operation signal according to the operation content input by the operator and supplies the operation signal to the CPU 51. The display unit 57 is composed of, for example, a liquid crystal panel, and displays characters and images on a screen. Therefore, during maintenance and inspection, the display unit 57 displays the relative positional relationship between the current position of the car 1 and the landing at each floor, and information on the type of car position and danger level symbol displayed on the landing indicator 12 at each floor, as shown in Fig. 9. The display unit 57 may be composed of a touch panel, and in that case, the display unit 57 and the input unit 56 are integrally configured.

[0109] [How to control information display during maintenance work] Next, a display control method for various information displayed on the landing display 12 on each floor, the mobile terminal 21 of the worker, and the display unit 57 of the information processing terminal 22 of the building manager during maintenance work in the elevator system 10 of this embodiment will be described.

[0110] (1) Information display control process during maintenance work Fig. 13 is a flowchart showing a specific procedure for display control processing of various information displayed on the landing indicators 12 on each floor, the mobile terminal 21 of the worker, and the display units 57 of the information processing terminal 22 of the building manager during maintenance work. Note that the processing shown in Fig. 13 is realized by various functional blocks (see Fig. 10) included in the control panel 3, and the processing operations of these functional blocks are executed on software by the CPU 41 (see Fig. 11).

[0111] The information display control process shown in FIG. 13 is started when an operator performs a predetermined operation on the elevator system 10 during maintenance and inspection to change the display mode of the landing indicators 12 of each floor from the normal operation mode to the maintenance and inspection mode. As the predetermined operation, as described above, the operator performs an operation of turning on both the maintenance-only switch (not shown) and the maintenance switch (not shown) in the car 1, and an operation of unplugging the connector (not shown) of the landing indicators 12 of each floor in the indicator box 13 of the lowest floor. The information display control process shown in FIG. 13 is repeatedly executed until the maintenance and inspection mode is released. In this embodiment, the maintenance and inspection mode is released when the maintenance switch (not shown) is turned off.

[0112] 13 is started, first, the information collecting unit 31 (CPU 41) collects information on the current position (car position) of the car 1 (S1). Specifically, the information collecting unit 31 acquires information on the amount of winding of the main rope 8 (the number of windings, etc.) from the position sensor unit 5a provided on the hoisting machine 5 as information on the car position.

[0113] Next, the position calculation unit 32 (CPU 41) calculates the current position of the car 1 based on the information on the car position acquired in S1 (S2). In this process, the position calculation unit 32 calculates the current positions of the car ceiling of the car 1 and the lower end of the apron 1c as the current position of the car 1 using information on the winding amount of the main rope 8 (the number of windings, etc.), the size of the car 1, the size of the apron 1c, etc. Note that data such as the size of the car 1 and the size of the apron 1c is pre-stored in the storage device 43 (see FIG. 11).

[0114] Next, the position determination processing unit 33 (CPU 41) performs a hall display data generation process based on the information on the current position of the car 1 calculated in S2 (S3). In this process, the position determination processing unit 33 generates hall display data for displaying corresponding various information (the wording "Heavenly Landing" and the car position and danger level symbol) on the hall display 12 of the floor currently being processed based on the information on the current position of the car 1. In addition, in this process, the position determination processing unit 33 outputs the generated hall display data to the hall display 12 of the floor currently being processed. In addition, hereinafter, the floor currently being processed is referred to as the "processing target floor". In addition, details of the hall display data generation process in S3 will be described later with reference to FIG. 14 described later.

[0115] Next, the position determination processing unit 33 judges whether the landing display data generation process has been completed for all floors of the building (S4). In S4, if the position determination processing unit 33 judges that the landing display data generation process has not been completed for all floors of the building (if S4 is judged as NO), the position determination processing unit 33 returns the process to S3, changes the floor to be processed, and repeats the processes from S3 onward.

[0116] On the other hand, in S4, if the position determination processing unit 33 determines that the platform display data generation process has been completed for all floors of the building (if S4 is judged as YES), the position determination processing unit 33 performs the process of generating and transmitting terminal display data (S5).

[0117] In the process of S5, first, the position determination processing unit 33 generates terminal display data to be transmitted to the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager. At this time, display data is generated as the terminal display data, which enables both information of the relative positional relationship between the current position of the car 1 in the building and the landing of each floor, and the car position and the type of danger level symbol displayed on the landing display 12 of each floor to be displayed together in a schematic manner. Next, the position determination processing unit 33 transmits the generated terminal display data to the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager, respectively. As a result, a diagram (see FIG. 9) that shows both information of the relative positional relationship between the current position of the car 1 in the building and the landing of each floor, and the car position and the type of danger level symbol currently displayed on the landing display 12 of each floor is displayed on the display unit 57 of each terminal device.

[0118] Next, the control panel 3 (CPU 41) judges whether or not an operation to end the maintenance inspection mode has been performed (S6). In this process, the control panel 3 judges whether or not an operator has turned off a maintenance switch (not shown) based on an operation signal input from the maintenance switch. If the operator has turned off the maintenance switch and an OFF signal has been input from the maintenance switch to the control panel 3, the judgment result in S6 is YES.

[0119] In S6, if the position determination processing unit 33 determines that the operation to end the maintenance / inspection mode has not been performed (if S6 is a NO determination), the position determination processing unit 33 returns the process to S1 and repeats the processes from S1 onward. On the other hand, in S6, if the position determination processing unit 33 determines that the operation to end the maintenance / inspection mode has been performed (if S6 is a YES determination), the position determination processing unit 33 ends the information display control process for maintenance work described above.

[0120] (2) Platform display data generation process Next, with reference to Fig. 14, the hall display data generation process performed in S3 during the information display control process (see Fig. 13) during maintenance work will be described. Fig. 14 is a flowchart showing the steps of the hall display data generation process. Note that this process is executed on software by the CPU 41 (see Fig. 11). Also, the types (display modes) and meanings of the car position and risk level symbols shown in Fig. 14, as well as the display conditions for each symbol, are the same as those explained in Figs. 2, 5 and 6 above.

[0121] First, the position determination processing unit 33 (CPU 41) compares the current position (car position) of the car 1 with the floor surface position of the landing at the floor to be processed (hereinafter referred to as "landing height") (S11). This comparison processing is performed based on the relationship between the current position of the car 1 and the landing height at each floor, which has been described in Figs. 2, 5, and 6 above. Note that data on the landing height at each floor in the building is stored in advance in the storage device 43 (see Fig. 11).

[0122] Next, the position determination processing unit 33 judges whether the current position of the car 1 corresponds to the landing height of the processing target floor based on the comparison result of S11 (S12). In this judgment process, the position determination processing unit 33 judges whether the current position of the car 1 is a position where a worker can get into the car 1 from the landing of the processing target floor and there is no risk of falling. Specifically, it is judged whether the condition that the current position of the car ceiling of the car 1 exceeds the position +200 mm from the floor surface position of the processing target floor and the lower end position of the apron 1c of the car 1 is equal to or lower than the floor surface position of the processing target floor is satisfied (see FIG. 6). Then, if the current position of the car 1 satisfies this condition, the judgment result of S12 is YES judgment.

[0123] In S12, when the position determination processing unit 33 determines that the current position of the car 1 corresponds to the landing height of the processing target floor (when S12 is determined as YES), the position determination processing unit 33 generates landing display data corresponding to that case (S13). Specifically, the position determination processing unit 33 generates landing display data for displaying the wording "Heading" and a square-shaped car position / risk level symbol in the switching manner shown in Fig. 3 on the landing indicator 12 of the processing target floor.

[0124] Furthermore, in the process of S13, the position determination processing unit 33 outputs the generated hall display data to the hall display 12 of the processing target floor. As a result, the wording "Tenkenchuu" and the rectangular car position / risk level symbol are displayed in the switching manner shown in Fig. 3 on the hall display 12 of the processing target floor. Then, after the process of S13, the position determination processing unit 33 ends the hall display data generation process, and moves the process to S4 of the information display control process (see Fig. 13).

[0125] On the other hand, in S12, if the position determination processing unit 33 determines that the current position of the car 1 does not correspond to the landing height of the processing target floor (if S12 is a NO judgment), the position determination processing unit 33 determines whether or not the car 1 is at a landing on a floor lower than the processing target floor based on the comparison result of S11 (S14). In S14, if the position determination processing unit 33 determines that the car 1 is not at a landing on a floor lower than the processing target floor (if S14 is a NO judgment), the position determination processing unit 33 performs the process of S20 described later.

[0126] On the other hand, in S14, when the position determination processing unit 33 determines that the car 1 is at a landing of a floor lower than the processing target floor (when S14 is a YES determination), the position determination processing unit 33 determines whether or not the worker can get on the car 1 from the landing of the processing target floor (S15). In this determination process, it is determined whether or not the current position of the car ceiling of the car 1 is within a range of +200 mm to -600 mm with respect to the floor surface position (Z mm) of the processing target floor (see FIG. 5). Then, if the current position of the car ceiling of the car 1 is within a range of Z+200 mm to Z-600 mm, the determination result of S15 is a YES determination.

[0127] In S15, when the position determination processing unit 33 determines that the worker can get on the car 1 from the landing of the processing target floor (when S15 is determined as YES), the position determination processing unit 33 generates landing display data corresponding to that case (S16). Specifically, the position determination processing unit 33 generates landing display data for displaying the wording "Heading" and the star-shaped car position / risk level symbol on the landing indicator 12 of the processing target floor in the switching manner shown in FIG.

[0128] Furthermore, in the process of S16, the position determination processing unit 33 outputs the generated hall display data to the hall display 12 of the processing target floor. As a result, the wording "Tenkenchuu" and the star-shaped car position / risk level symbol are displayed in the switching manner shown in Fig. 3 on the hall display 12 of the processing target floor. Then, after the process of S16, the position determination processing unit 33 ends the hall display data generation process and moves the process to S4 of the information display control process (see Fig. 13).

[0129] On the other hand, in S15, when the position determination processing unit 33 determines that the worker cannot get on the car 1 from the landing of the processing target floor (when S15 is a NO determination), the position determination processing unit 33 determines whether or not the processing target floor is the floor immediately above the floor where the worker can get on the car 1 (S17). That is, in this determination process, the position determination processing unit 33 determines whether or not the processing target floor is one floor above the floor on which the star-marked car position / hazard level symbol is displayed on the landing display 12. Then, when the processing target floor is one floor above the floor on which the star-marked car position / hazard level symbol is displayed on the landing display 12, the determination result of S17 is a YES determination.

[0130] In S17, when the position determination processing unit 33 determines that the processing target floor is the floor immediately above the floor where the car 1 can be boarded (when S17 is determined as YES), the position determination processing unit 33 generates hall display data corresponding to that case (S18). Specifically, the position determination processing unit 33 generates hall display data for displaying the wording "Heaven's Gate" and the car position / hazard level symbol in the form of a downward single triangle mark in the switching manner shown in FIG. 3 on the hall indicator 12 of the processing target floor.

[0131] Furthermore, in the process of S18, the position determination processing unit 33 outputs the generated hall display data to the hall display 12 of the floor to be processed. As a result, the wording "Tenkenchuu" and the car position / risk level symbol with a downward single triangle are displayed in the switching manner shown in Fig. 3 on the hall display 12 of the floor to be processed. Then, after the process of S18, the position determination processing unit 33 ends the hall display data generation process and moves the process to S4 of the information display control process (see Fig. 13).

[0132] On the other hand, in S17, when the position determination processing unit 33 determines that the processing target floor is not the floor immediately above the floor where boarding onto the car 1 is possible (when S17 is a NO determination), the position determination processing unit 33 generates hall display data corresponding to that case (S19). Specifically, the position determination processing unit 33 generates hall display data for displaying the wording "Heaven's Gate" and the car position / hazard level symbol with a double triangle mark on the hall indicator 12 of the processing target floor in the switching manner shown in FIG. 3.

[0133] Furthermore, in the process of S19, the position determination processing unit 33 outputs the generated hall display data to the hall display 12 of the processing target floor. As a result, the wording "Tenkenchuu" and the car position / risk level symbol with a downward double triangle mark are displayed in the switching manner shown in Fig. 3 on the hall display 12 of the processing target floor. Then, after the process of S19, the position determination processing unit 33 ends the hall display data generation process and moves the process to S4 of the information display control process (see Fig. 13).

[0134] Returning to the explanation of the processing of S14, if S14 is judged as NO, the position determination processing unit 33 judges, based on the comparison result of S11, whether or not the elevator car 1 is located at the landing immediately above the floor to be processed (S20).

[0135] In S20, when the position determination processing unit 33 determines that the car 1 is at the landing of the floor immediately above the processing target floor (when S20 is determined as YES), the position determination processing unit 33 generates landing display data corresponding to that case (S21). Specifically, the position determination processing unit 33 generates landing display data for displaying the wording "Tenkenchuu" and the car position / risk level symbol of a single triangle mark on the landing indicator 12 of the processing target floor in the switching manner shown in Fig. 3.

[0136] Furthermore, in the process of S21, the position determination processing unit 33 outputs the generated hall display data to the hall display 12 of the processing target floor. As a result, the wording "Tenkenchuu" and the car position / risk level symbol with a single triangle mark on the upper side are displayed in the switching manner shown in Fig. 3 on the hall display 12 of the processing target floor. Then, after the process of S21, the position determination processing unit 33 ends the hall display data generation process and moves the process to S4 of the information display control process (see Fig. 13).

[0137] On the other hand, in S20, when the position determination processing unit 33 determines that the car 1 is not at the landing of the floor immediately above the processing target floor (when S20 is determined to be NO), the position determination processing unit 33 generates landing display data corresponding to that case (S22). Specifically, the position determination processing unit 33 generates landing display data for displaying the wording "Heading" and the car position / risk level symbol with a double triangle mark on the landing indicator 12 of the processing target floor in the switching manner shown in Fig. 3.

[0138] Furthermore, in the process of S22, the position determination processing unit 33 outputs the generated hall display data to the hall display 12 of the processing target floor. As a result, the wording "Tenkenchuu" and the car position / risk level symbol with a double triangle mark on top are displayed in the switching manner shown in Fig. 3 on the hall display 12 of the processing target floor. Then, after the process of S22, the position determination processing unit 33 ends the hall display data generation process and moves the process to S4 of the information display control process (see Fig. 13).

[0139] [Various effects] As described above, in the elevator system 10 of this embodiment, during maintenance work, the car position / hazard level symbols, which indicate both the relative positional relationship between the current position of the car 1 and the landing at each floor, and the risk of falling at the landing at each floor, are displayed on the landing indicator 12 at each floor. Therefore, by looking at the car position / hazard level symbols displayed on the landing indicator 12, a worker can easily grasp at a glance the risk of falling at the floor where he or she is located. As a result, the risk of workers falling during elevator maintenance work can be further reduced, and safety during maintenance work can be further improved.

[0140] Furthermore, in the elevator system 10 of this embodiment, the car position / hazard level symbol displayed on the hall display 12 during maintenance work allows the worker to easily grasp the relative positional relationship between the floor where the worker is and the current position of the car 1. Therefore, in this embodiment, the worker can smoothly move to a floor where he or she can get into or on the car 1, improving work efficiency.

[0141] In addition, in the elevator system 10 of this embodiment, during maintenance work, the relative positional relationship between the current position of the car 1 in the building and the landing of each floor, and information on the type of car position and danger level symbol displayed on the landing indicator 12 of each floor are displayed together on the mobile terminal 21 of the worker. At this time, the meaning of the car position and danger level symbol is also displayed on the mobile terminal 21 of the worker. Therefore, the worker can easily and reliably grasp the current position of the car 1 and the risk of falling on the floor where the worker is located by looking at the display content of his / her mobile terminal 21 during maintenance work. Therefore, the risk of the worker falling during elevator maintenance work can be further reduced, and the safety during maintenance work can be further improved. Furthermore, the relative positional relationship between the floor where the worker is located and the current position of the car 1 can be intuitively grasped by the information on the relative positional relationship between the current position of the car 1 in the building and the landing of each floor displayed on the mobile terminal 21. Therefore, workers can move more smoothly to floors where they can enter or board the car 1, further improving work efficiency.

[0142] Furthermore, in the elevator system 10 of this embodiment, during maintenance work, the relative positional relationship between the current position of the car 1 in the building and the landings on each floor, as well as the type of car position and hazard level symbol displayed on the landing indicator 12 on each floor, are also displayed on the information processing terminal 22 of the building manager. Therefore, the building manager can easily grasp at a glance the overall situation at the site during maintenance and inspection, the progress of the maintenance and inspection work, etc. This also increases the building manager's awareness of safety management during maintenance and inspection.

[0143] [Various variations] Although the elevator system 10 according to one embodiment of the present invention has been described above, the present invention is not limited thereto. For example, the following various modified examples can be adopted.

[0144] In the above embodiment, an example was described in which a square mark, a star mark, and a triangle mark were used as the cage position / risk level symbol, but the present invention is not limited to this. Any symbol can be used as long as it can represent not only the relative positional relationship between the current position of the cage 1 and the landing of each floor during maintenance work, but also the risk of falling when the landing door 11 of each floor is opened with one symbol. For example, the cage position / risk level symbol displayed on the landing indicator 12 of the floor where the worker can get into and on the cage 1 may be a double circle mark and a circle mark instead of a square mark and a star mark. Also, for example, an arrow may be used instead of a triangle mark as the cage position / risk level symbol indicating that the current position of the cage 1 is up or down with respect to the landing of each floor.

[0145] In the above embodiment, an example was shown in which a square car position / hazard level symbol was displayed on the landing indicator 12 of a floor where a worker can get into the car 1, but the present invention is not limited to this. For example, when a floor is one where a worker can get into the car 1 and the current position of the car 1 is the door zone position of that floor, a symbol other than a square, star, or triangle, such as a circle, may be used as the car position / hazard level symbol.

[0146] In the above embodiment, the platform indicator 12 of a predetermined floor (state (a) in FIG. 6) where a worker can get into the car 1 from the platform through the upper opening of the entrance (not shown) of the car 1 displays a rectangular car position / hazard level symbol. Also, the platform indicator 12 of a predetermined floor (state (b) in FIG. 6) where a worker can get into the car 1 from the platform through the lower opening of the entrance (not shown) of the car 1 displays a rectangular car position / hazard level symbol. However, the present invention is not limited to this, and the car position / hazard level symbol displayed in the former case (state (a) in FIG. 6) may be changed to the car position / hazard level symbol displayed in the latter case (state (b) in FIG. 6). That is, at a floor where a worker can get into the car 1 during maintenance work, the type of car position / hazard level symbol may be changed according to the manner in which the worker gets into the car 1. In this case, the worker can also understand the manner of getting into the car 1 from the car position / risk level symbol, which can further improve work efficiency. In this modified example, when a worker is at a floor where he / she can get into the car 1 and the current position of the car 1 is in the door zone position of the floor, another symbol (for example, a circle mark, etc.) may be used as the car position / risk level symbol.

[0147] In the above embodiment, an example has been described in which black square marks, star marks, and triangle marks are displayed on a white background as car position / hazard level symbols, but the present invention is not limited to this. For example, the background color and the symbol color may be reversed only for the star marks displayed as car position / hazard level symbols on the hall display 12 of a floor where a worker can board the car 1. Furthermore, if the hall display 12 is a display capable of full-color display, only the color of the star marks may be made different from the colors of the square marks and triangle marks, or the symbol color may be changed for each type of symbol.

[0148] In the elevator system 10 of the above embodiment, a configuration may be provided in which, when the landing door 11 is opened during maintenance work at a floor where a triangular mark is displayed as the car position / risk level symbol, that is, at a floor where there is a risk of falling, a warning sound such as a buzzer is sounded. In this case, safety during maintenance work can be further improved.

[0149] In the elevator system 10 of the above embodiment, an example has been described in which the position sensor unit 5a that acquires information (such as the number of times of winding) on ​​the amount of winding of the main rope 8 is used as a sensor for detecting the current position of the car 1, but the present invention is not limited to this. As a sensor for detecting the current position of the car 1, for example, a PosiTector (registered trademark) and a shielding plate capable of detecting the position information of the car 1, an air pressure sensor capable of detecting the height of the car 1, a magnetic sensor capable of measuring the surrounding magnetic field and estimating its own position, etc. may be used.

[0150] In the above embodiment, the elevator system 10 includes the mobile terminal 21 of the worker and the information processing terminal 22 of the building manager. However, the present invention is not limited to this. For example, the elevator system 10 may include either the mobile terminal 21 of the worker or the information processing terminal 22 of the building manager, or may not include both terminal devices. For example, the elevator system 10 may further include an information processing terminal of an elevator maintenance center provided outside the building. In this case, during maintenance work, the display unit of the information processing terminal of the maintenance center displays various information similar to the various information displayed on the display unit of the information processing terminal 22 of the building manager (see FIG. 9). In this case, the operator of the maintenance center can easily grasp the overall situation of the site during maintenance and inspection, the progress of the maintenance and inspection work, and the like at a glance.

[0151] In addition, the above-mentioned embodiment examples are detailed and specific descriptions of the configuration of the device in order to easily explain the present invention, and are not necessarily limited to those having all of the described configurations. In addition, the position, size, shape, range, etc. of each component shown in the drawings, etc. may not represent the actual position, size, shape, range, etc. in order to facilitate understanding of the invention. Therefore, the present invention is not necessarily limited to the position, size, shape, range, etc. disclosed in the drawings, etc. Furthermore, the present invention may take on various other application examples and modified examples as long as they do not deviate from the gist of the present invention described in the claims. [Explanation of symbols]

[0152] 1...car, 1a...car door, 1b...operation switch panel, 1c...apron, 2...hoistway, 3...control panel, 4a, 4b...limit switch, 5...hoisting machine, 5a...position sensor unit, 6...counterweight, 7...pulley, 8...main rope, 9...pit, 10...elevator system, 11...landing door, 12...landing indicator, 13...indicator box, 20...communication network, 21...worker's mobile terminal, 22...manager's information processing terminal, 31...information collection unit, 32...position calculation unit, 33...position determination processing unit, 57...display unit

Claims

1. A car, A position detection unit that acquires information regarding a current position of the elevator; A plurality of landing indicators are provided at landings of a plurality of floors at which the elevator car stops; a control unit for controlling an information display operation by the hall display device of each floor, During elevator maintenance work, the control unit generates, for each floor, display data of a symbol that indicates not only a relative positional relationship between the current position of the elevator and a landing at the floor, but also a fall risk at the floor, based on information regarding the current position of the elevator acquired by the position detection unit, and outputs the generated display data of the symbol to the landing indicator at the floor; The landing indicator of each floor displays the display data of the corresponding symbol input from the control unit. An elevator system comprising:

2. During maintenance work on the elevator, The control unit generates display data for not only the symbol but also a message indicating that maintenance work is being performed; The landing indicator of each floor displays the corresponding symbol display data and the corresponding wording display data generated by the control unit.

2. The elevator system according to claim 1 .

3. The symbol displayed on the platform indicator of the predetermined floor at which the passenger can enter the car differs depending on whether the entrance of the car is shifted downward from the entrance of the predetermined floor or whether the entrance of the car is shifted upward from the entrance of the predetermined floor.

3. An elevator system according to claim 1 or 2.

4. A terminal device of a worker who performs maintenance work on the elevator, the terminal device being capable of communicating with the control unit, During the maintenance work on the elevator, information indicating the relative positional relationship between the current position of the elevator car in the building and the landings on each floor, and information on the symbols displayed on the landing indicators on each floor are displayed on the terminal device of the worker.

2. The elevator system according to claim 1 .

5. During the maintenance work on the elevator, the meaning of the symbol is further displayed on the terminal device of the worker.

5. The elevator system according to claim 4.

6. During the maintenance work of the elevator, advice information for the maintenance work is further displayed on the terminal device of the worker.

6. An elevator system according to claim 4 or 5.

7. A terminal device capable of communicating with the control unit and a manager of a building in which the elevator is installed is further provided, During the maintenance work of the elevator, information indicating the relative positional relationship between the current position of the elevator car in the building and the landing of each floor, and information on the symbol displayed on the landing indicator of each floor are displayed on the terminal device of the manager.

2. The elevator system according to claim 1 .

8. 1. An information display method for performing maintenance work on an elevator in an elevator system comprising: a car; a position detection unit that acquires information about a current position of the car; a plurality of hall indicators that are provided at the halls of a plurality of floors where the car stops; and a control unit that controls an operation of displaying information by the hall indicators on each floor, the control unit generates, for each floor, display data of a symbol that indicates not only a relative positional relationship between the current position of the elevator and a landing at the floor, but also a fall risk at the floor, based on information regarding the current position of the elevator acquired by the position detection unit, and outputs the generated display data of the symbol to the landing indicator at the floor; The landing indicator of each floor displays the display data of the corresponding symbol input from the control unit.

2. A method for displaying information during elevator maintenance work.

Images