Elevator maintenance operation control system and elevator maintenance operation control method

Abstract

The present invention relates to an elevator maintenance operation control system and an elevator maintenance operation control method. The elevator maintenance operation control system includes: an electronic tag provided on the safety equipment of maintenance personnel; a tag detection sensor provided in the hoistway for detecting the electronic tag; a safety equipment detection device provided in the hoistway for identifying the safety equipment; a car stop determination unit for determining whether to stop the car; and a car stop unit for stopping the car. When the electronic tag of a predetermined one of the safety equipment goes out of a predetermined position and the car is ascending, the car stop determination unit determines to stop the car and commands the car stop unit to stop the car.

Description

Technical Field

[0001] The present invention relates to an elevator maintenance operation control system and an elevator maintenance operation control method. Background Art

[0002] An elevator needs to be installed before it can be used. During use, it also needs to be maintained, and if a failure occurs, it needs to be repaired. Therefore, in addition to the normal operation mode, the elevator also has a maintenance operation mode for maintenance personnel to use during installation, maintenance, repair, etc. (for example, Japanese Patent Laid-Open No. 2012-111630). Hereinafter, for the sake of convenience of explanation, operations such as installation, maintenance, and repair are collectively referred to as maintenance operations. Summary of the Invention

[0003] In the maintenance operation mode, the elevator runs at a low speed. Therefore, it is generally considered that maintenance personnel working in the hoistway are safe.

[0004] However, there are many mechanisms and devices of the elevator installed in the hoistway. If the maintenance personnel go beyond the predetermined position, they may be injured even when running at a low speed. Especially when the car is rising, if the maintenance personnel are working with their heads down, there may be a situation where they fail to notice and collide with the mechanisms and devices in the hoistway and get injured.

[0005] An object of the present invention is to provide an elevator maintenance operation control system and an elevator maintenance operation control method that can at least solve the above technical problems and ensure the safety of maintenance personnel.

[0006] To solve at least one of the above technical problems, an elevator maintenance operation control system according to an aspect of the present invention includes: an electronic tag provided on a safety tool of a maintenance person; a tag detection sensor provided in the hoistway for detecting the electronic tag; a safety tool detection device provided in the hoistway for identifying the safety tool; a car stop determination unit for determining whether to stop the car; and a car stop unit for stopping the car. When the electronic tag of a predetermined safety tool among the safety tools goes beyond a predetermined position and the car is rising, the car stop determination unit determines to stop the car and commands the car stop unit to stop the car.

[0007] Preferably, the elevator maintenance operation control system further includes: a tag detection sensor provided on the landing door for detecting the electronic tag; a safety tool detection device provided on the landing door for identifying the safety tool; and a landing door unlocking determination unit for determining whether to allow unlocking of the landing door. When the elevator is in the maintenance operation mode and all the safety tools are detected, the landing door unlocking determination unit allows unlocking of the landing door.

[0008] Preferably, the elevator maintenance operation control system further includes a stop switch for switching whether to stop the car.

[0009] Preferably, the tag detection sensors provided in the hoistway are arranged along the four sides of the car.

[0010] Preferably, the tag detection sensors provided in the hoistway are arranged along the side of the car counterweight.

[0011] Preferably, the tag detection sensors provided in the hoistway are arranged near the position where the bottom edge of the counterweight in the pit passes.

[0012] Preferably, the tag detection sensors provided in the hoistway are arranged near the position where the bottom edge of the counterweight on the car side in the pit passes.

[0013] Preferably, the safety equipment includes a safety helmet, cut-resistant gloves, safety shoes, and a safety belt.

[0014] To solve at least one of the above technical problems, an elevator maintenance operation control system according to an aspect of the present invention includes: an electronic tag provided on the safety equipment of maintenance personnel; a tag detection sensor provided in the hoistway for detecting the electronic tag; a safety equipment detection device provided in the hoistway for identifying the safety equipment; a car stop determination unit for determining whether to stop the car; and a car stop unit for stopping the car. When the electronic tag of a predetermined one of the safety equipment exceeds a predetermined position, the car stop determination unit determines to stop the car. If the car is moving, the car stop unit is commanded to stop the car. If the car is in a stopped state, the car continues to stop.

[0015] To solve at least one of the above technical problems, an elevator maintenance operation control method according to an aspect of the present invention includes: a safety equipment out-of-position detection step of detecting whether an electronic tag on a predetermined one of the safety equipment of maintenance personnel exceeds a predetermined position; a car ascending determination step of determining whether the car is ascending; and a car stop determination step of determining to stop the car and stopping the car if the electronic tag of the predetermined one of the safety equipment exceeds the predetermined position and the car is ascending.

[0016] The elevator maintenance operation control system and the elevator maintenance operation control method of the present invention can ensure the safety of maintenance personnel.

[0017] The problems, structures, and effects other than the above can be clarified by the description of the following embodiments. Description of the Drawings

[0018] Figure 1 An example of an elevator to which the elevator maintenance operation control system of the present invention is applicable is shown.

[0019] Figure 2 It is a block diagram of an example of an elevator maintenance operation control system according to an embodiment of the present invention.

[0020] Figure 3 It is a flowchart of an example of the operation of an elevator maintenance operation control system according to an embodiment of the present invention.

[0021] Figure 4 It is a block diagram of an example of an elevator maintenance operation control system according to an embodiment of the present invention.

[0022] Figure 5 It is a conceptual diagram of an example of an elevator maintenance operation control system according to an embodiment of the present invention.

[0023] Figure 6 It is a flowchart of an example of the operation of an elevator maintenance operation control system according to an embodiment of the present invention.

[0024] Figure 7 It is a block diagram of an example of an elevator maintenance operation control system according to an embodiment of the present invention.

[0025] <Marks in the Drawings>

[0026] 1 Elevator; 2 Hoistway; 3 Control device (control cabinet); 4 Traction machine; 5 Car; 6 Counterweight; 7 Pit; 8 Landing door; 9 Landing door lock; 10 Elevator maintenance operation control system; 11 Electronic tag; 11a Electronic tag (safety helmet); 11b Electronic tag (cut-resistant gloves); 11c Electronic tag (safety shoes); 11d Electronic tag (safety belt); 12 Tag detection sensor; 13 Safety equipment detection device; 14 Maintenance operation mode detection unit; 15 Landing door unlocking judgment unit; 16 Tag detection sensor; 17 Safety equipment detection device; 18 Car ascending judgment unit; 19 Car stop judgment unit; 20 Car stopping unit; 21 Stop switch; 22 Tag detection sensor; 23 Safety equipment detection device; 24 Stop switch. Detailed Description of the Invention

[0027] Hereinafter, the specific embodiments of the present invention will be described in detail with reference to the drawings and embodiments.

[0028] Figure 1 An example of an elevator to which the elevator maintenance operation control system of the present invention is applicable is shown. As an example, the present invention is applicable to a machine-roomless elevator 1 as shown in the figure. Of course, the present invention can also be applied to a machine-room elevator.

[0029] As shown in the figure, in the elevator 1, the control device 3 and the traction machine 4 are arranged in the hoistway 2 of the building (for the elevator with a machine room, the control device (i.e., the control cabinet) and the traction machine are arranged in the machine room). The traction machine 4 includes a traction wheel, a motor and a brake. The car 5 and the counterweight 6 are arranged in the hoistway 2 and are respectively connected to the two ends of the traction rope. The traction rope is wound on the traction wheel of the traction machine 4, and the traction wheel is rotated by the drive of the motor, so that the car 5 and the counterweight 6 are raised and lowered in opposite directions. The lower part of the hoistway 2 is a pit 7, and in the example shown in the figure, the control device 3 is arranged near the pit 7.

[0030] A hall door 8 for opening and closing the entrance and exit is provided in the elevator lobby A of each floor of the building. The hall door 8 includes a door frame, a door leaf, a hall door lock, and a door unit provided at the upper end of the entrance and exit. The hall door lock of the hall door 8 includes a component provided on the door leaf and a component provided on the door unit. Usually, after the car 5 arrives at and stops at the target floor, the hall door 8 is opened and closed in conjunction with the car door of the car 5 to prevent passengers from falling into the shaft 2 by mistake.

[0031] However, the maintenance personnel need to enter the hoistway 2 to perform maintenance work, so the maintenance personnel have a key (external open key) and use the key to unlock the hall door 8 and enter the hoistway 2 when the car 5 is not in the door zone.

[0032] (Implementation Method 1)

[0033] Figure 2 The elevator maintenance operation control system 10 of this embodiment ensures that the maintenance personnel carry all safety equipment when unlocking the hall door 8 and entering the hoistway 2.

[0034] The elevator maintenance operation control system 10 of the present embodiment comprises: an electronic tag 11 arranged on the safety equipment of the maintenance personnel; a tag detection sensor 12 arranged on the hall door 8 for detecting the electronic tag 11; a safety equipment detection device 13 arranged on the hall door 8 for identifying the safety equipment; and a hall door unlocking judgment unit 15 for judging whether it is allowed to unlock the hall door 8.

[0035] As an example, the safety equipment of the maintenance personnel that the system detects is a helmet, anti-cut gloves, safety shoes and a safety belt. The electronic tag 11 includes an electronic tag 11a set on the helmet, an electronic tag 11b set on the anti-cut gloves, an electronic tag 11c set on the safety shoes and an electronic tag 11d set on the safety belt.

[0036] It is sufficient that the electronic tag 11 can be used to electronically identify the safety appliance, and its specific configuration is not limited. For example, the electronic tag 11 is a so-called RFID (Radio Frequency Identification) tag that communicates wirelessly by radio waves or the like, and has an IC chip (integrated circuit chip) and an antenna. After the antenna receives radio waves or the like, it wirelessly transmits the recorded information.

[0037] The tag detection sensor 12, as Figure 1 shown, is provided on the landing door 8. Specifically, it is provided at the door jambs on the left and right sides of the entrance and exit of the landing door 8. The tag detection sensor 12 is provided along the door jamb in the vertical direction. For example, it can detect a range of at least approximately 2 m. If it can detect similarly, the tag detection sensor 12 can also be provided only at the door jamb on the left or right side of the entrance and exit, or at the door jamb above the entrance and exit.

[0038] It is sufficient that the tag detection sensor 12 can detect the electronic tag 11, and its specific configuration is not limited. For example, the tag detection sensor 12 is an RFID reader or interrogator, which emits radio waves, receives and interprets the information from the electronic tag 11, and sends it to the safety appliance detection device 13.

[0039] The safety appliance detection device 13, as Figure 1 shown, is provided on the landing door 8. Specifically, for example, it is provided at the door unit at the upper end of the entrance and exit of the landing door 8. It is sufficient that the safety appliance detection device 13 can identify the corresponding safety appliance based on the information from the tag detection sensor 12, and its specific configuration is not limited. For example, the safety appliance detection device 13 stores safety appliance data and can identify the corresponding safety appliance based on the information of the electronic tag 11.

[0040] The safety appliance detection device 13 can also determine whether all safety appliances have been detected. In this example, the safety appliance detection device 13 can determine whether the four electronic tags, namely the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, and the electronic tag 11d of the safety belt, have been detected. Alternatively, it can be determined by the landing door unlocking determination unit 15 whether all safety appliances have been detected.

[0041] The landing door unlocking determination unit 15 allows the landing door 8 to be unlocked when the elevator 1 is in the maintenance operation mode and all safety devices are detected. Specifically, when a maintenance worker unlocks the landing door lock 9 of the landing door 8 with a key, if the elevator 1 is in the maintenance operation mode and all the safety devices of the maintenance worker are detected, the landing door unlocking determination unit 15 allows the unlocking of the landing door lock 9. The landing door unlocking determination unit 15 is connected to the landing door lock 9, the safety device detection device 13, and the maintenance operation mode detection unit 14 (described later) by wire or wirelessly.

[0042] Whether the elevator 1 is in the maintenance operation mode is detected, for example, by the maintenance operation mode detection unit 14. The maintenance operation mode detection unit 14 detects whether the elevator 1 is in the maintenance operation mode, for example, by detecting whether the operation mode switch is operated.

[0043] The landing door unlocking determination unit 15 and the maintenance operation mode detection unit 14 are provided in the control device 3, and the control device 3 is a control device that controls the operation of the entire elevator 1. In other words, the landing door unlocking determination unit 15 and the maintenance operation mode detection unit 14 are part of the control device 3, and their functions are performed by the control device 3. Of course, it is also possible that one or both of the landing door unlocking determination unit 15 and the maintenance operation mode detection unit 14 are independent of the control device 3 and are configured as independent devices.

[0044] The control device 3 includes a CPU, a ROM (Read Only Memory), a RAM (Random Access Memory), a communication unit, etc. The control device 3 realizes its functions, for example, by the CPU reading the program stored in the ROM into the RAM and executing the read program, or can be realized by dedicated circuits and other hardware, or can be realized by combining hardware and software.

[0045] The configuration of the elevator maintenance operation control system 10 of the present embodiment has been described above. The invention of the present embodiment is not limited to the classification method and name of the constituent elements. The configuration of the elevator maintenance operation control system 10 can also be reclassified into more constituent elements according to the processing content. In addition, it can also be classified such that one constituent element executes more processing.

[0046] Figure 3 It is a flowchart of an example of the operation of the elevator maintenance operation control system according to an embodiment of the present invention. Specifically, Figure 3 It is used to illustrate the operation of the elevator maintenance operation control system 10 when a maintenance worker (see Figure 1 , the safety devices and electronic tags are omitted in the figure) is outside the landing door 8 and unlocks the landing door 8 with a key when entering the hoistway 2.

[0047] First, the maintenance operation mode detection unit 14 detects whether the elevator 1 is in the maintenance operation mode (S1). If the elevator 1 is not in the maintenance operation mode (the "no" of S1), the landing door unlocking judgment unit 15 does not allow the landing door lock 9 to be unlocked with a key (S4). Thus, unlocking of the landing door lock 9 in the normal operation mode of the elevator 1 is excluded to prevent accidents.

[0048] If the elevator 1 is in the maintenance operation mode (the "yes" of S1), the label detection sensor 12 and the safety equipment detection device 13 detect the electronic labels of the safety equipment (S2). If not all the electronic labels of the safety equipment are detected (the "no" of S2), the landing door unlocking judgment unit 15 does not allow the landing door lock 9 to be unlocked with a key (S4).

[0049] If all the electronic labels of the safety equipment are detected (the "yes" of S2), the landing door unlocking judgment unit 15 allows the landing door lock 9 to be unlocked with a key (S3).

[0050] Thus, the elevator maintenance operation control system 10 of the present embodiment can ensure that maintenance personnel carry all the safety equipment into the hoistway 2. And because the maintenance personnel have not entered the hoistway 2 yet, it can prompt them to return in time to carry it.

[0051] In the above description, carrying the safety equipment includes assembling it on the body in ways such as wearing or tying, and also includes carrying it with hands, pulling by hand or pushing by hand, etc. Considering safety, preferably, the safety equipment to be detected at least includes a safety helmet, cut-resistant gloves, safety shoes and a safety belt. Of course, it can also be less than or more than these safety equipment.

[0052] (Embodiment 2)

[0053] Figure 4 It is a block diagram of an example of an elevator maintenance operation control system according to an embodiment of the present invention. Figure 5 It is a conceptual diagram of an example of an elevator maintenance operation control system according to an embodiment of the present invention. The elevator maintenance operation control system 10 of the present embodiment ensures the safety of maintenance personnel when they have entered the hoistway 2 and are performing maintenance work in the hoistway 2.

[0054] Although maintenance personnel are performing operations in the maintenance operation mode, there are many mechanisms and devices of the elevator 1 installed in the hoistway 2. If the maintenance personnel go beyond the predetermined position, they may be injured even in the low-speed maintenance operation mode. Especially when the car 5 is rising, if the maintenance personnel are working with their heads down, there may be a situation where they collide with the mechanisms and devices in the hoistway 2 without noticing and get injured.

[0055] The places where maintenance personnel work in hoistway 2 are mostly on the car top of car 5 and in pit 7. The elevator maintenance operation control system 10 of this embodiment ensures the safety of maintenance personnel working on the car top of car 5.

[0056] The elevator maintenance operation control system 10 of this embodiment includes: an electronic tag 11 provided on the safety equipment of maintenance personnel; a tag detection sensor 16 provided in hoistway 2 for detecting the electronic tag 11; a safety equipment detection device 17 provided in hoistway 2 for detecting the safety equipment; a car stop determination unit 19 for determining whether to stop car 5; and a car stop unit 20 for stopping car 5.

[0057] The safety equipment of the predetermined (pre - specified) maintenance personnel that is the detection object of the elevator maintenance operation control system 10 of this embodiment is the safety equipment that maintenance personnel assemble on their bodies by wearing, tying, etc. As an example, it is a safety helmet, cut - resistant gloves, safety shoes, and a safety belt. The electronic tag 11 includes an electronic tag 11a provided on the safety helmet, an electronic tag 11b provided on the cut - resistant gloves, an electronic tag 11c provided on the safety shoes, and an electronic tag 11d provided on the safety belt. The structure of the electronic tag 11 is the same as that described in Embodiment 1, and the detailed description is omitted here.

[0058] The tag detection sensor 16 is provided, for example, on the car top of car 5.

[0059] As Figure 5 shown, maintenance personnel sometimes need to work on the car top of car 5 running at low speed, sometimes together with other maintenance personnel in car 5, and sometimes alone. Although there is a safety fence B provided on the car top of some cars 5 as shown in the figure, there are still cases where people go beyond the safety fence B.

[0060] In this embodiment, by arranging the tag detection sensors 16 along the four sides of the car top of car 5 ( Figure 5 in the figure, for the sake of illustration, the reference numerals are marked on the radio waves it emits, Figure 1 the same applies), the range approximately 2 m above the car top is detected, so as to detect whether the maintenance personnel go beyond the car top and are in a dangerous state.

[0061] As Figure 5As shown, if the head of the maintenance staff extends beyond the position of the tag detection sensor 16, the tag detection sensor 16 can detect the electronic tag 11a on the safety helmet worn by the maintenance staff. That is to say, by setting the tag detection sensor 16 at a predetermined position to prevent the maintenance staff from extending beyond, it is possible to stop the car 5 in the following manner to ensure the safety of the maintenance staff when the body of the maintenance staff extends to a dangerous position. The tag detection sensor 16 can also be set on one or more of the four sides.

[0062] As Figure 1 shown, when the car 5 ascends, the counterweight 6 descends, and the two are relatively close to each other. Therefore, the side beyond the counterweight is the most dangerous, and there is a possibility of being pinched between the car 5 and the counterweight 6. Therefore, preferably, the tag detection sensor 16 is at least set on the side, that is, the tag detection sensor 16 is arranged along the side of the car 5 on the counterweight side to ensure the safety of the maintenance staff.

[0063] The other constitution of the tag detection sensor 16 is the same as or similar to that of the safety equipment detection device 13 in Embodiment 1, and the detailed description is omitted here.

[0064] The safety equipment detection device 17, as Figure 1 shown, is set on the car top of the car 5. The safety equipment detection device 17 only needs to be able to identify the corresponding safety equipment based on the information from the tag detection sensor 16, and the specific constitution is not limited. For example, the safety equipment detection device 17 stores safety equipment data and can identify the corresponding safety equipment based on the information of the electronic tag 11.

[0065] The car stop determination unit 19 determines to stop the car 5 and commands the car stop unit 20 to stop the car 5 when the electronic tag 11 of a predetermined safety equipment among the above-mentioned safety equipment extends beyond the predetermined position and the car 5 is ascending. That is to say, as long as it is detected that any one of the above four safety equipment extends beyond the predetermined position and the car 5 is ascending, the car stop determination unit 19 determines to stop the car 5 to ensure the safety of the maintenance staff equipped with the safety equipment. The car stop determination unit 19 is connected to the safety equipment detection device 17, the car stop unit 20, and the car ascending determination unit 18 described later by wire or wirelessly.

[0066] Whether the car 5 is ascending is judged by, for example, the car ascending determination unit 18. The car ascending determination unit 18 judges, for example, based on the change in the position of the car 5, the rotation direction of the rotating shaft of the traction machine 4, etc.

[0067] The car stop unit 20 stops the car 5, for example, by sending an instruction to the traction machine 4.

[0068] The car stop determination unit 19, the car ascending determination unit 18, and the car stopping unit 20 are provided in the control device 3, and the control device 3 is a control device that controls the operation of the entire elevator 1. In other words, the car stop determination unit 19, the car ascending determination unit 18, and the car stopping unit 20 are part of the control device 3, and their functions are exerted by the control device 3. Of course, it is also possible that one or more of the car stop determination unit 19, the car ascending determination unit 18, and the car stopping unit 20 are independent of the control device 3 and are configured as independent devices. The control device 3 is the same as the description in the above-mentioned Embodiment 1, and its detailed description is omitted here.

[0069] The elevator maintenance operation control system 10 further includes a stop switch 21 for switching whether to stop the car 5. Since it is necessary to move the car 5 during maintenance work and it is impossible to keep the car 5 stationary all the time, the car 5 can be made operable by switching the stop switch 21. The stop switch 21 is provided, for example, on the car top to facilitate the operation of maintenance personnel.

[0070] The configuration of the elevator maintenance operation control system 10 of the present embodiment has been described above. The invention of the present embodiment is not limited to the classification method and name of the constituent elements. The configuration of the elevator maintenance operation control system 10 can also be further classified into more constituent elements according to the processing content. In addition, it can also be classified such that one constituent element executes more processing.

[0071] Figure 6 It is a flowchart of an example of the operation of an elevator maintenance operation control system according to an embodiment of the present invention. Specifically, Figure 6 It is used to illustrate the operation of the elevator maintenance operation control system 10 when maintenance personnel perform operations on the car top of the car 5.

[0072] First, the tag detection sensor 16 and the safety equipment detection device 17 detect the electronic tags 11 of predetermined safety equipment (S11). In this example, the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, and the electronic tag 11d of the safety belt are detected. If none of the electronic tags are detected ("No" in S11), the car 5 can be operated and can be moved (S15).

[0073] If the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, or the electronic tag 11d of the safety belt is detected ("Yes" in S11), but the car ascending determination unit 18 does not determine that the car 5 is ascending ("No" in S12), the car 5 can be operated (S15).

[0074] If the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, or the electronic tag 11d of the safety belt is detected (Yes in S11), and the car ascending determination unit 18 determines that the car 5 is ascending (Yes in S12), then the car stop determination unit 19 determines to stop the car 5 and causes the car stop unit 20 to stop the car 5 (S13). It is also possible to first execute step S12 and then execute step S11.

[0075] After that, if the stop switch 21 is not switched (No in S14), that is, the maintenance personnel have not operated the stop switch 21 after the car 5 stops, then the car 5 continues to stop (S13). If the stop switch 21 is switched (Yes in S14), that is, the maintenance personnel have operated the stop switch 21 after the car 5 stops, then the car 5 can move (S15).

[0076] That is to say, the elevator maintenance operation control method of this embodiment includes: a safety equipment out-of-position detection step of detecting whether the electronic tag 11 on a predetermined safety equipment among the safety equipment of the maintenance personnel has moved out of a predetermined position; a car ascending determination step of determining whether the car 5 is ascending; and a car stop determination step of, if the electronic tag 11 (the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, or the electronic tag 11d of the safety belt) on the predetermined safety equipment among the safety equipment has moved out of the predetermined position and the car 5 is ascending, determining to stop the car 5 and stopping the car 5.

[0077] The elevator maintenance operation control system 10 of this embodiment ensures the safety of the maintenance personnel working on the car top. Especially when the car is ascending, it is relatively dangerous if the maintenance personnel move out of the car top. When any one of the safety helmet, cut-resistant gloves, safety shoes, and safety belt worn or fastened to the body of the maintenance personnel moves out of the side of the car 5, the elevator maintenance operation control system 10 regards the maintenance personnel as being in a dangerous situation and stops the car 5 to ensure the safety of the maintenance personnel working on the car top.

[0078] From the perspective of safety, preferably, the safety equipment to be detected is a safety helmet, cut-resistant gloves, safety shoes, and a safety belt. Of course, it can also be less than or more than these safety equipment.

[0079] (Embodiment 3)

[0080] The elevator maintenance operation control system 10 of this embodiment is composed by combining the above-described Embodiments 1 and 2. As an example, the elevator maintenance operation control system 10 of this embodiment includes: an electronic tag 11 provided on the safety equipment of the maintenance personnel; a tag detection sensor 12 provided on the landing door 8 for detecting the electronic tag 11; a safety equipment detection device 13 provided on the landing door 8 for detecting the safety equipment; a landing door unlocking judgment unit 15 for judging whether to allow unlocking of the landing door 8; a tag detection sensor 16 provided in the hoistway 2 for detecting the electronic tag 11; a safety equipment detection device 17 provided in the hoistway 2 for detecting the safety equipment; a car stop judgment unit 19 for judging whether to stop the car 5; and a car stopping unit 20 for stopping the car 5.

[0081] More specifically, as an example, the tag detection sensors 16 are arranged along the four sides of the car 5, and the safety equipment detection device 17 is provided on the car top.

[0082] In the elevator maintenance operation control system 10 of this embodiment, when the maintenance personnel unlock the landing door lock 9 of the landing door 8 with a key, the landing door unlocking judgment unit 15 allows unlocking of the landing door lock 9 only when the elevator 1 is in the maintenance operation mode and it is detected that the maintenance personnel carry all the safety equipment, ensuring that the maintenance personnel carry all the safety equipment into the hoistway 2.

[0083] On this basis, the elevator maintenance operation control system 10 of this embodiment more ensures the safety of the maintenance personnel working on the car top by selecting a predetermined safety equipment from the safety equipment carried by the maintenance personnel as the detection object of the tag detection sensor 16 and the safety equipment detection device 17.

[0084] In other words, the premise for effectively detecting whether the maintenance personnel are out of position is that the maintenance personnel must carry the predetermined safety equipment. This embodiment ensures that the maintenance personnel carry the predetermined safety equipment when entering the hoistway 2 through the above configuration.

[0085] Thereby, the elevator maintenance operation control system 10 of this embodiment more ensures the safety of the maintenance personnel entering the hoistway 2 and working on the car top. The specific configurations of the respective components are omitted from detailed description as described in the above Embodiments 1 and 2.

[0086] (Embodiment 4)

[0087] Figure 7 It is a block diagram of an example of an elevator maintenance operation control system according to an embodiment of the present invention. The elevator maintenance operation control system 10 of this embodiment ensures the safety of the maintenance personnel when the maintenance personnel have entered the hoistway 2 and are performing maintenance operations in the hoistway 2, and more specifically, when performing operations in the pit 7.

[0088] The elevator maintenance operation control system 10 of this embodiment includes: an electronic tag 11 provided on the safety equipment of maintenance personnel; a tag detection sensor 22 provided in the pit 7 for detecting the electronic tag 11; a safety equipment detection device 23 for detecting the safety equipment; a car stop determination unit 19 for determining whether to stop the car 5; and a car stop unit 20 for stopping the car 5.

[0089] The safety equipment of the predetermined (predetermined in advance) maintenance personnel that is the detection object of the elevator maintenance operation control system 10 of this embodiment is the safety equipment that the maintenance personnel assemble on their bodies in a way such as wearing or tying. As an example, it is a safety helmet, cut-resistant gloves, safety shoes, and a safety belt. The electronic tag 11 includes an electronic tag 11a provided on the safety helmet, an electronic tag 11b provided on the cut-resistant gloves, an electronic tag 11c provided on the safety shoes, and an electronic tag 11d provided on the safety belt. The configuration of the electronic tag 11 is the same as that described in Embodiment 1, and the detailed description is omitted here.

[0090] The tag detection sensor 22 is provided in the pit 7 as shown Figure 1 (the reference numerals are marked on the radio waves it emits for easy explanation). More specifically, the tag detection sensor 22 is provided near the position where the bottom edge of the counterweight in the pit 7 passes, and detects a range at a height of approximately 2 m above the bottom surface of the pit 7. Figure 1 As shown, when the car 5 ascends, the counterweight 6 descends, and in many cases, maintenance personnel work below the car 5. Therefore, the position where the bottom edge on the car side of the counterweight 6 passes is the most dangerous, and there is a possibility of being hit or pinched by the counterweight 6. Therefore, preferably, the tag detection sensor 22 is at least provided near the position where the bottom edge on the car side of the counterweight 6 in the pit 7 passes to ensure the safety of maintenance personnel.

[0091] As shown Figure 1 The other configuration of the tag detection sensor 22 is the same as or similar to that of the safety equipment detection device 13 of Embodiment 1 described above, and the detailed description is omitted here.

[0092] The other configuration of the tag detection sensor 22 is the same as or similar to that of the safety equipment detection device 13 of the above-described Embodiment 1, and the detailed description is omitted here.

[0093] The safety equipment detection device 23 is provided in the control device 3 as shown Figure 1 when the control device 3 is provided at a position close to the pit 7, or when the control device 3 is provided in the pit 7. When the control device 3 is provided at a position far from the pit 7, for example, when it is provided near the upper end of the hoistway 2, the safety equipment detection device 23 is provided in the pit 7 or at a position in the hoistway 2 close to the pit 7.

[0094] The safety equipment detection device 23 can identify the corresponding safety equipment based on the information from the tag detection sensor 22, and the specific configuration is not limited. For example, the safety equipment detection device 23 stores safety equipment data and can identify the corresponding safety equipment based on the information of the electronic tag 11.

[0095] The car stop determination unit 19 determines to stop the car 5 and causes the car stop unit 20 to stop the car 5 when the electronic tag 11 of a predetermined safety equipment among the above-mentioned safety equipment goes out of the predetermined position and the car 5 is ascending. That is, as long as it is detected that any one of the above four safety equipment goes out of the predetermined position and the car 5 is ascending, the car stop determination unit 19 determines to stop the car 5 to ensure the safety of the maintenance personnel equipped with this safety equipment. The car stop determination unit 19 is connected to the safety equipment detection device 23, the car stop unit 20, and the car ascending determination unit 18 described later by wire or wirelessly.

[0096] Whether the car 5 is ascending is determined by, for example, the car ascending determination unit 18. The car ascending determination unit 18 determines, for example, based on the change in the position of the car 5, the rotation direction of the rotating shaft of the traction machine 4, etc.

[0097] The car stop unit 20 stops the car 5 by, for example, sending an instruction to the traction machine 4.

[0098] The car stop determination unit 19, the car ascending determination unit 18, and the car stop unit 20 are provided in the control device 3, and the control device 3 is a control device that controls the operation of the entire elevator 1. In other words, the car stop determination unit 19, the car ascending determination unit 18, and the car stop unit 20 are part of the control device 3, and their functions are exerted by the control device 3. Of course, it is also possible that one or more of the car stop determination unit 19, the car ascending determination unit 18, and the car stop unit 20 are configured independently of the control device 3. The control device 3 is the same as the description in the above-mentioned Embodiment 1, and its detailed description is omitted here.

[0099] The elevator maintenance operation control system 10 further includes a stop switch 24 for switching whether to stop the car. Since it is necessary to move the car 5 during the maintenance operation and it is impossible to keep the car 5 stationary all the time, the car 5 can be made movable by switching the stop switch 24. The stop switch 24 is, for example, provided in the pit 7 for the convenience of the maintenance personnel's operation.

[0100] The configuration of the elevator maintenance operation control system 10 of this embodiment has been described above. The invention of this embodiment is not limited to the classification method and name of the constituent elements. The configuration of the elevator maintenance operation control system 10 can also be reclassified into more constituent elements according to the processing content. In addition, it can also be classified such that one constituent element executes more processing.

[0101] The operation of the elevator maintenance operation control system 10 of the present embodiment will be described below. Since it is similar to the above-described Embodiment 2, the following will also be described by taking Figure 6 as an example. As Figure 1 shown, when the maintenance personnel are working in the bottom pit 7, the elevator maintenance operation control system 10 of the present embodiment performs the following operations.

[0102] First, the tag detection sensor 22 and the safety equipment detection device 23 detect the electronic tags 11 of the predetermined safety equipment (S11). In this example, the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, and the electronic tag 11d of the safety belt are detected. If none of the electronic tags are detected (the "No" of S11), the car 5 can operate and can move (S15).

[0103] If the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, or the electronic tag 11d of the safety belt is detected (the "Yes" of S11), but the car ascending determination unit 18 does not determine that the car 5 is ascending (the "No" of S12), the car 5 can operate (S15).

[0104] If the electronic tag 11a of the safety helmet, the electronic tag 11b of the cut-resistant gloves, the electronic tag 11c of the safety shoes, or the electronic tag 11d of the safety belt is detected (the "Yes" of S11), and the car ascending determination unit 18 determines that the car 5 is ascending (the "Yes" of S12), the car stop determination unit 19 determines to stop the car 5 and causes the car stop unit 20 to stop the car 5 (S13). It is also possible to perform step S12 first and then step S11.

[0105] After that, if the stop switch 24 is not switched (the "No" of S14), that is, the maintenance personnel have not operated the stop switch 24 after the car 5 stops, the car 5 continues to stop (S13). If the stop switch 24 is switched (the "Yes" of S14), that is, the maintenance personnel have operated the stop switch 24 after the car 5 stops, the car 5 can operate (S15).

[0106] The elevator maintenance operation control system 10 of the present embodiment ensures the safety of the maintenance personnel working in the bottom pit 7. Especially when the car is ascending, it is more dangerous if the maintenance personnel cross the position where the bottom edge of the counterweight passes. The elevator maintenance operation control system 10 stops the car 5 when any one of the safety helmet, cut-resistant gloves, safety shoes, and safety belt worn or tied to the body of the maintenance personnel crosses this position, regarding the maintenance personnel as being in a dangerous situation, so as to ensure the safety of the maintenance personnel working in the bottom pit 7.

[0107] From a safety perspective, preferably, the safety equipment to be detected is a safety helmet, cut-resistant gloves, safety shoes, and a safety belt. Of course, it can also be less or more than these safety equipment.

[0108] (Embodiment 5)

[0109] The elevator maintenance operation control system 10 of this embodiment is composed by combining the above-mentioned Embodiment 1 and Embodiment 4. For example, the elevator maintenance operation control system 10 of this embodiment includes: an electronic tag 11 provided on the safety equipment of the maintenance personnel; a tag detection sensor 12 provided on the landing door 8 for detecting the electronic tag 11; a safety equipment detection device 13 provided on the landing door 8 for detecting the safety equipment; a landing door unlocking judgment unit 15 for judging whether to allow the landing door 8 to be unlocked; a tag detection sensor 22 provided in the pit 7 for detecting the electronic tag 11; a safety equipment detection device 23 for detecting the safety equipment; a car stop judgment unit 19 for judging whether to stop the car 5; and a car stop unit 20 for stopping the car 5.

[0110] More specifically, as an example, the tag detection sensor 22 is provided near the position where the bottom edge of the counterweight in the pit 7 passes, and the safety equipment detection device 23 is provided at the control device 3 or in the pit 7 or at a position close to the pit 7.

[0111] In the elevator maintenance operation control system 10 of this embodiment, when the maintenance personnel unlock the landing door lock 9 of the landing door 8 with a key, the landing door unlocking judgment unit 15 allows the unlocking of the landing door lock 9 only when the elevator 1 is in the maintenance operation mode and it is detected that the maintenance personnel are carrying all the safety equipment, ensuring that the maintenance personnel carry all the safety equipment into the hoistway 2.

[0112] On this basis, the elevator maintenance operation control system 10 of this embodiment selects a predetermined safety equipment from the safety equipment carried by the maintenance personnel as the detection object of the tag detection sensor 22 and the safety equipment detection device 23, thereby further ensuring the safety of the maintenance personnel working in the pit 7.

[0113] In other words, the premise for effectively detecting whether the maintenance personnel are out of position is that the maintenance personnel must carry the predetermined safety equipment. This embodiment ensures that the maintenance personnel carry the predetermined safety equipment when entering the hoistway 2 through the above-mentioned configuration.

[0114] Thus, the elevator maintenance operation control system 10 of this embodiment further ensures the safety of the maintenance personnel entering the hoistway 2 and working in the pit 7. The specific configuration of each component element is as described in the above-mentioned Embodiment 1 and 4, and the detailed description is omitted here.

[0115] (Embodiment 6)

[0116] The elevator maintenance operation control system 10 of this embodiment is composed by combining the above embodiments 1, 2 and 4. For example, the elevator maintenance operation control system 10 of this embodiment includes: an electronic tag 11 provided on the safety equipment of the maintenance personnel; a tag detection sensor 12 provided on the landing door 8 for detecting the electronic tag 11; a safety equipment detection device 13 provided on the landing door 8 for detecting the safety equipment; a landing door unlocking judgment unit 15 for judging whether to allow the landing door 8 to be unlocked; a tag detection sensor 16 provided in the hoistway 2 for detecting the electronic tag 11; a safety equipment detection device 17 provided in the hoistway 2 for detecting the safety equipment; a tag detection sensor 22 provided in the pit 7 for detecting the electronic tag 11; a safety equipment detection device 23 for detecting the safety equipment; a car stop judgment unit 19 for judging whether to stop the car 5; and a car stop unit 20 for stopping the car 5.

[0117] The elevator maintenance operation control system 10 of this embodiment not only further ensures the safety of the maintenance personnel working on the car top in the hoistway 2, but also further ensures the safety of the maintenance personnel working in the pit 7. The specific constitution of each component is as described in the above embodiments 1, 2 and 4, and the detailed description is omitted here.

[0118] (Embodiment 7)

[0119] The elevator maintenance operation control system 10 of this embodiment includes: an electronic tag 11 provided on the safety equipment of the maintenance personnel; a tag detection sensor 16 or / and 22 provided in the hoistway 2 for detecting the electronic tag 11; a safety equipment detection device 17 or / and 23 provided in the hoistway 2 for identifying the safety equipment; a car stop judgment unit 19 for judging whether to stop the car 5; and a car stop unit 20 for stopping the car 5. When the electronic tag 11 of a predetermined safety equipment in the safety equipment goes out of the predetermined position, the car stop judgment unit 19 judges to stop the car 5. If the car 5 is moving, the car stop unit 20 is commanded to stop the car 5. If the car 5 is in a stopped state, the car 5 continues to be stopped.

[0120] That is, different from the elevator maintenance operation control system 10 in the above-described Embodiments 1 to 6: for the elevator maintenance operation control system 10 of this embodiment, if the electronic tag 11 of a predetermined safety appliance moves out of a predetermined position and the car 5 is in a moving state, regardless of whether the car 5 is ascending or descending, the car stop determination unit 19 causes the car stop unit 20 to stop the car 5 to more ensure the safety of maintenance personnel. Further, if the electronic tag 11 of a predetermined safety appliance moves out of a predetermined position and the car 5 is in a stopped state, the car stop determination unit 19 causes the car 5 to remain in the stopped state to prevent the car 5 from starting to move when the maintenance personnel are still in a state where they have moved out of the predetermined position.

[0121] The current state of the car 5, that is, whether it is moving or stopped, is determined, for example, by the car ascending determination unit 18. The car ascending determination unit 18 determines, for example, based on whether the position of the car 5 is changing, whether the rotating shaft of the traction machine 4 is rotating, etc. The car stop unit 20 causes the car 5 to stop or continue to be in the stopped state, for example, by sending an instruction to the traction machine 4. The elevator maintenance operation control system 10 of this embodiment further includes a stop switch 21 and / or 24 for switching whether to stop the car, and the maintenance personnel can operate the car 5 by means of the stop switch 21 and / or 24.

[0122] The elevator maintenance operation control system 10 of this embodiment can more ensure the safety of maintenance personnel working in the hoistway 2. Other configurations of the elevator maintenance operation control system 10 of this embodiment can appropriately combine the configurations of the above-described Embodiments 1 to 6, and detailed descriptions thereof are omitted herein.

[0123] For the elevator maintenance operation control system 10 of the present invention, a tag detection sensor may also be provided at other workplaces where maintenance personnel in the hoistway 2 may be injured, and a safety appliance detection device may be provided nearby to ensure the safety of maintenance personnel working at that place.

[0124] The elevator maintenance operation control system 10 of the present invention can also be applied when multiple maintenance personnel perform maintenance work. For example, when the maintenance personnel unlock the landing door 8 with a key, the landing door unlocking determination unit 15 can detect for each maintenance personnel whether they are carrying all the safety appliances. When entering the hoistway 2 and working on the top of the car 5 or in the pit 7 of the car 5, as long as the electronic tag of a predetermined safety appliance of any one of the maintenance personnel moves out of the predetermined position, the car stop determination unit 19 determines to stop the car 5 and causes the car stop unit 20 to stop the car 5.

[0125] Furthermore, the present invention is not limited to the above-described embodiments and includes various modifications. For example, the above embodiments have been described in detail for easy understanding of the present invention, but are not necessarily limited to including all the structures described. In addition, a part of the structure of one embodiment can be replaced with the structure of another embodiment, and further, the structure of another embodiment can be added to the structure of one embodiment. In addition, addition, deletion, and replacement of other structures can be made to a part of the structure of each embodiment.

Claims

1. An elevator maintenance operation control system, characterized in that, it includes: An electronic tag provided on the safety equipment of maintenance personnel; A tag detection sensor provided in the hoistway for detecting the electronic tag; A safety equipment detection device provided in the hoistway for identifying the safety equipment; A car stop judgment unit for judging whether to stop the car; and A car stop unit for stopping the car, When the electronic tag of the predetermined safety equipment among the safety equipment goes out of the predetermined position and the car is ascending, the car stop judgment unit judges to stop the car and commands the car stop unit to stop the car.

2. The elevator maintenance operation control system according to claim 1, characterized in that, it further includes: A tag detection sensor provided on the landing door for detecting the electronic tag; A safety equipment detection device provided on the landing door for identifying the safety equipment; and A landing door unlocking judgment unit for judging whether to allow unlocking of the landing door, When the elevator is in the maintenance operation mode and all the safety equipment is detected, the landing door unlocking judgment unit allows unlocking of the landing door.

3. The elevator maintenance operation control system according to claim 1 or 2, characterized in that, it further includes a stop switch for switching whether to stop the car.

4. The elevator maintenance operation control system according to claim 1 or 2, characterized in that, The tag detection sensor provided in the hoistway is arranged along the four sides of the car.

5. The elevator maintenance operation control system according to claim 1 or 2, characterized in that, The tag detection sensor provided in the hoistway is arranged along the side of the car on the counterweight side.

6. The elevator maintenance operation control system according to claim 1 or 2, characterized in that, The tag detection sensor provided in the hoistway is arranged near the position where the bottom edge of the counterweight in the pit passes.

7. The elevator maintenance operation control system according to claim 1 or 2, characterized in that, The tag detection sensor provided in the hoistway is arranged near the position where the bottom edge of the counterweight on the car side in the pit passes.

8. The elevator maintenance operation control system according to claim 1 or 2, characterized in that, The safety equipment includes a safety helmet, cut-resistant gloves, safety shoes and a safety belt.

9. An elevator maintenance operation control system, characterized in that, it includes: An electronic tag provided on the safety equipment of maintenance personnel; A tag detection sensor provided in the hoistway for detecting the electronic tag; A safety equipment detection device provided in the hoistway for identifying the safety equipment; A car stop judgment unit for judging whether to stop the car; and A car stop unit for stopping the car, In the case where the electronic tag of the predetermined safety appliance among the safety appliances goes out of the predetermined position, the car stop determination unit determines to stop the car. If the car is moving, the car stop unit is made to stop the car. If the car is in a stopped state, the car continues to stop.

10. An elevator maintenance operation control method, characterized in that, it includes: a safety appliance out-of-position detection step of detecting whether the electronic tag on the predetermined safety appliance among the safety appliances provided for the maintenance personnel goes out of the predetermined position; a car ascending determination step of determining whether the car is ascending; and a car stop determination step of, if the electronic tag of the predetermined safety appliance among the safety appliances goes out of the predetermined position and the car is ascending, determining to stop the car and stopping the car.

Images