JP2018095380A - Elevator control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator control system capable of securing safety of each person existing on a cage.SOLUTION: An elevator control system 30 comprises: an on-cage person number acquiring part 35 which acquires the number of persons existing on an upper surface of a cage 2 of an elevator; a safety belt number acquiring part 36 which acquires the number of safety belts 14 which are hooked to a safety belt attachment hook 11 which is an attachment structure provided on the cage 2 and are attached to respective persons existing on the upper surface; and a determination part 37 which determines whether to permit the upward/downward movement of the cage 2 by distinguishing whether or not the number of persons existing on the upper surface acquired by the on-cage person number acquiring part 35 and the number of safety belts acquired by the safety belt number acquiring part 36 agree with each other.SELECTED DRAWING: Figure 3

Description

  The present embodiment relates to an elevator control system.

  In elevator inspection and maintenance work, an operator may perform work on an elevator car. The worker wears a safety belt for preventing falling during work on the car. One end of a rope, which is a so-called lifeline, is attached to the belt portion of the safety belt that is worn on the human body, and a latch is attached to the other end of the rope. In the case of work on the car, the safety belt is hooked to the mounting structure by connecting the hooking tool to the mounting structure provided on the car. Moreover, in work involving the raising / lowering movement of the car, the raising / lowering movement may be permitted after confirming the state where the safety belt is hooked on the mounting structure.

Japanese Patent No. 5868273

  It is desired that the elevator control system can ensure the safety of each person regardless of the number of persons on the car.

  The problem to be solved by the present embodiment is to provide an elevator control system that can ensure the safety of each person on the car.

  The elevator control system according to the embodiment includes a car number acquisition unit, a safety belt number acquisition unit, and a determination unit. The number-of-cars acquisition unit acquires the number of people on the upper surface of the elevator car. The safety belt number acquisition unit acquires the number of safety belts that are secured to the mounting structure provided in the car. The safety belt is attached to each person on the upper surface. The determination unit determines whether the number of people on the upper surface acquired by the number-of-cars acquisition unit matches the number acquired by the safety belt number acquisition unit, It is determined whether the car is allowed to move up and down.

FIG. 1 is a schematic diagram illustrating an example of an elevator controlled by the elevator control system according to the first embodiment. FIG. 2 is a diagram illustrating an example of the safety belt attachment hook illustrated in FIG. 1 and the safety belt that is hooked on the safety belt attachment hook. FIG. 3 is a block diagram illustrating an example of an elevator control system according to the first embodiment. FIG. 4 is a flowchart showing a procedure of control processing by the elevator control system according to the first embodiment. FIG. 5 is a block diagram illustrating an example of an elevator control system according to the second embodiment. FIG. 6 is a flowchart illustrating a procedure of control processing by the elevator control system according to the second embodiment. FIG. 7 is a block diagram illustrating an example of an elevator control system according to the third embodiment. FIG. 8 is a flowchart showing a procedure of control processing by the elevator control system according to the third embodiment. FIG. 9 is a block diagram illustrating an example of an elevator control system according to the fourth embodiment. FIG. 10 is a flowchart showing a procedure of control processing by the elevator control system according to the fourth embodiment. FIG. 11 is a block diagram illustrating an example of an elevator control system according to the fifth embodiment. FIG. 12 is a flowchart illustrating a procedure of control processing by the elevator control system according to the fifth embodiment.

  Below, the elevator control system concerning an embodiment is explained in detail based on a drawing. Note that the present invention is not limited to these embodiments.

[First Embodiment]
FIG. 1 is a schematic diagram illustrating an example of an elevator 1 controlled by the elevator control system according to the first embodiment. The elevator 1 includes a car 2, a guide rail 3 for a car, a counterweight 4, a main rope 5, a hoisting machine 6, a control device 7, a tail cord 8, a handrail 9, a car remote control 10, a safety belt mounting hook 11, and a load. A sensor 12 is provided. The elevator 1 moves the car 2 up and down in the hoistway 13.

  The car 2 gets on and off by a user of the elevator 1 and moves the user on the elevator to a target floor. The car 2 is installed between a pair of car guide rails 3 installed in the hoistway 13 and moves up and down along the car guide rails 3. The car 2 is provided with an openable / closable car door (not shown). The car door is kept closed when the car 2 is raised and lowered, and is changed from the closed state to the open state when the car 2 is landed.

  The counterweight 4 moves up and down in the hoistway 13 in conjunction with the raising and lowering of the car 2. The counterweight 4 is installed between a pair of weight guide rails (not shown) and moves up and down along the weight guide rails. The weight of the counterweight 4 is set so as to balance the car 2 with the hoisting machine 6 sandwiched when the car 2 has a predetermined load capacity (for example, about 0 to 1/2 with respect to the maximum load capacity). Yes.

  The main rope 5 is one or more ropes that connect the car 2 and the counterweight 4, and is wound around the hoisting machine 6. The main rope 5 raises and lowers the car 2 and the counterweight 4 in a traction manner. The hoisting machine 6 rotates the motor (not shown) to wind up the main rope 5 and changes the relative position of the car 2 and the counterweight 4 in the ascending / descending direction, thereby moving the car 2 in the hoistway 13. Move up and down. The hoisting machine 6 is connected to a control device 7, and drive control of the motor is performed by electric power supplied via the control device 7.

  The control device 7 controls the drive of the motor of the hoisting machine 6 and controls the entire elevator 1. The tail cord 8 is an electric wire for communication and power supply between the car 2 and the control device 7. The tail cord 8 is suspended in the hoistway 13 and moves up and down with the car 2.

  The load sensor 12 which is a load detection unit is installed on the car guide rail 3. The load sensor 12 detects the load applied to the car 2 from the tension of the main rope 5. The load sensor 12 outputs a load signal indicating the amount of change in the load on the car 2 caused by a passenger getting on and off.

  In the inspection or maintenance work of the elevator 1, the worker W may be placed on the upper surface S of the car 2. The worker W is a person who performs inspection work or maintenance work of the elevator 1. The handrail 9 is installed on the upper surface S of the car 2 and is provided for ensuring the safety of the worker W, such as preventing the worker W from dropping. The car remote control 10 is installed on the upper surface S of the car 2 and accepts an operation by the worker W. The worker W moves the car 2 up and down by manual operation using the car remote control 10. The safety belt attachment hook 11 is provided on the upper surface S of the car 2 and has an attachment structure on which the safety belt 14 worn by the operator W is hooked.

  The safety belt 14 includes a belt portion attached to the worker W and a lanyard attached to the belt portion. The lanyard includes a rope portion that is a lifeline and a latch that is a latch member. One end of the rope portion is attached to the belt portion, and a latch is attached to the other end. The safety band 14 is hooked on the safety band mounting hook 11 by connecting the hook to the safety band mounting hook 11. The safety belt 14 worn by the worker W is fixed to the safety belt mounting hook 11, thereby preventing the worker W from falling from the car 2.

  The belt portion of the safety belt 14 may be any of a torso belt type that is worn on the torso of the human body, and a harness type in which the belt is passed through the thigh or shoulder in addition to the torso. The safety belt 14 may be either a single hanging safety belt (single hook) provided with one lanyard or a double lanyard safety belt (two hooks) provided with two lanyards.

  FIG. 2 is a diagram illustrating an example of the safety belt attachment hook 11 illustrated in FIG. 1 and the safety belt 14 that is hooked on the safety belt attachment hook 11. The latch 22 is attached to the end of the rope portion 21. The latching tool 22 has a loop shape and is configured to be able to open and close a part of the loop. The safety belt 14 is hooked on the safety belt mounting hook 11 by putting the hook 22 in the opened state on the safety belt mounting hook 11 and then closing the hook 22.

  The contact sensor 23, the contact information transmission unit 24, and the IC tag 25 are provided in the safety belt 14. The contact sensor 23 which is a contact detection part is a part of curved part which comprises a loop among the latches 22, for example, Comprising: It is provided inside the curve. The contact sensor 23 detects the presence or absence of an object contact and generates a signal corresponding to the detection result. The contact sensor 23 may be provided at any position where the contact sensor 23 can come into contact with the safety belt attachment hook 11 in a state where the hook 22 is connected to the safety belt attachment hook 11.

  A signal corresponding to the detection result in the contact sensor 23 is transmitted to the contact information transmission unit 24 through, for example, wiring (not shown) provided inside the latching tool 22. The contact information transmission unit 24 that is a transmission unit is provided, for example, in the vicinity of a connection portion between the latch 22 and the rope portion 21. The contact information transmission unit 24 acquires contact information indicating presence / absence of contact in the contact sensor 23 by receiving a signal from the contact sensor 23.

  The contact information transmission unit 24 transmits the acquired contact information to the control device 7 via, for example, wireless communication. The contact information transmission unit 24 includes a processing circuit that processes a signal from the contact sensor 23 and an antenna that transmits contact information (both not shown). For transmitting contact information from the contact information transmitting unit 24 to the control device 7, for example, wireless communication using a wireless local area network (LAN) is used. Wireless communication according to any standard may be employed for transmitting contact information. The contact information transmission unit 24 may be provided at any position on the safety belt 14.

  The safety belt 14 that can be worn by the worker W is classified into several types according to the structure and usage method. Each safety belt 14 is provided with an IC tag 25 as a storage unit. In the IC tag 25, individual information indicating the type of the safety belt 14 is stored. The IC tag 25 includes an IC chip in which individual information is stored, and an antenna for wireless communication (both not shown). The IC tag 25 is provided, for example, inside the curve of the latching tool 22. Whether the safety belt 14 is one or two hooks, that is, whether the safety belt 14 is provided with one or two hooks 22 is indicated in the individual information. Yes. As described above, the IC tag 25 stores information indicating the number of the latching tools 22 for each safety belt 14.

  A tag reader 26 as a reading unit is provided on the safety belt attaching hook 11. The tag reader 26 reads individual information from the IC tag 25 via wireless communication. The tag reader 26 includes an antenna that receives a signal from the IC tag 25, a processing circuit for communication processing, and an interface (not shown) that performs communication with the control device 7.

  By bringing the IC tag 25 closer to the tag reader 26 until the wireless communication between the IC tag 25 and the tag reader 26 is possible, the tag reader 26 is not in contact with the IC tag 25 and the individual information in the IC tag 25 Receive. In a state where the latching tool 22 is connected to the safety belt attaching hook 11, the IC tag 25 and the tag reader 26 are in a positional relationship sufficiently close to each other so as to be capable of wireless communication.

  The IC tag 25 and the tag reader 26 perform short-range wireless communication using radio waves or electromagnetic waves (RFID (Radio Frequency Identifier)). For example, the IC tag 25 generates electric power using radio waves transmitted from the tag reader 26 and transmits radio waves carrying individual information to the tag reader 26. The tag reader 26 acquires individual information from the received radio wave. Note that wireless communication according to any standard may be adopted for transmission of individual information from the medium of the safety belt 14 to the reading unit of the safety belt attachment hook 11, for example, BLE (Bluetooth (registered trademark) Low Energy). For example, short-range wireless communication may be employed.

  The tag reader 26 may be provided at any position where information in the IC tag 25 can be read in a state where the hook 22 is connected to the safety band attaching hook 11. The IC tag 25 may be provided at any position on the safety belt 14.

  FIG. 3 is a block diagram illustrating an example of the elevator control system 30 according to the first embodiment. The elevator control system 30 includes a control device 7, a contact sensor 23 provided in the safety belt 14, a contact information transmission unit 24 and an IC tag 25, a tag reader 26 provided in the safety belt attachment hook 11 on the upper surface of the car 2, A camera 31 inside the car 2, a car remote control 10, and a load sensor 12 are provided.

  The camera 31 is attached near the ceiling inside the car 2. The camera 31 captures a space inside the car 2 and generates image data. The image data acquired by the camera 31 and the individual information acquired by the tag reader 26 are transmitted to the control device 7 through wiring in the tail code 8.

  The control device 7 includes an operation control unit 32, an in-car number acquisition unit 33, a total car number acquisition unit 34, an on-car number acquisition unit 35, a safety belt number acquisition unit 36, a determination unit 37, and a connection switching unit 38. Further, the control device 7 includes an antenna (not shown) that receives the contact information transmitted from the contact information transmission unit 24.

  The operation control unit 32 controls the operation of the elevator 1 according to operations on an operation panel and a landing operation panel (both not shown) inside the car 2. In the inspection and maintenance work by the operator W, the operation control unit 32 controls the operation of the elevator 1 according to the operation of the car remote control 10.

  Image data from the camera 31 is input to the in-car number acquisition unit 33. The number-of-cars acquisition unit 33 analyzes the image data obtained by photographing with the camera 31 and acquires the number of people in the car 2. The number-of-cars acquisition unit 33 detects the human body image from the image taken by the camera 31 and determines the number of people inside the car 2.

  A load signal from the load sensor 12 is input to the total car number acquisition unit 34. The total car number acquisition unit 34 acquires the total number of persons inside the car 2 and the upper surface S according to the load signal. The upper car number acquisition unit 35 acquires the number of persons on the upper surface S of the car 2. The number-of-cars acquisition unit 35 calculates the result obtained by subtracting the number acquired by the number-of-cars acquisition unit 33 from the number acquired by the total number-of-cars acquisition unit 34, so that the person on the upper surface S of the car 2 Get the number.

  Contact information transmitted from the contact information transmitting unit 24 and individual information transmitted from the tag reader 26 are input to the safety band number acquiring unit 36. The safety belt number acquisition unit 36 grasps the number of latches 22 in which contact has been detected based on the input contact information, and corresponds to each latch 22 based on the input individual information. The type of safety belt 14 is grasped, and the number of safety belts 14 is obtained. In this way, the safety band number acquisition unit 36 receives the detection result by the contact sensor 23 and the individual information read by the tag reader 26, and calculates the number of safety bands 14 that are hooked on the safety band mounting hook 11. get.

  With respect to the safety belt 14 with two hooks, the safety belt 14 is normally hooked by connecting the two hooks 22 to one of the safety belts 14 to the safety belt mounting hook 11. Is detected. With respect to the single safety belt 14, the safety belt 14 is normally hooked by connecting one hook 22 in the safety belt 14 to the safety belt mounting hook 11. Detected.

  For example, when the two safety belts 14 are hooked on the safety belt hook 11, the safety belt number acquisition unit 36 includes contact information indicating contact detection for the four hooks 22, Individual information indicating that the hook 22 is a two-band safety belt 14 is obtained. In any case, since the contact of the four hooks 22 included in the two-band safety belt 14 is detected, the number of the safety belts 14 hooked on the safety belt attachment hook 11 is obtained as two.

  The safety belt number acquisition unit 36 has the safety belt 14 on the safety belt mounting hook 11 when both the contact detection by the contact sensor 23 and the reading of individual information from the IC tag 25 by the tag reader 26 are performed. Detects that it is hung. When the contact sensor 23 comes into contact with another object away from the safety belt attaching hook 11, individual information is not read by the tag reader 26. Therefore, it is erroneously assumed that the safety belt 14 is hooked on the safety belt attaching hook 11. Detection is avoided.

  The determination unit 37 determines whether the number acquired by the number-of-cars acquisition unit 35 matches the number acquired by the safety belt number acquisition unit 36 and determines whether the car 2 is allowed to move up and down. To do. When it is determined that the number acquired by the number-of-cars acquisition unit 35 matches the number acquired by the safety belt number acquisition unit 36, the determination unit 37 determines that the ascending / descending movement is permitted, and a signal indicating the permission Is output. On the other hand, when it is determined that the number acquired by the number-of-cars acquisition unit 35 and the number acquired by the safety belt number acquisition unit 36 do not coincide with each other, the determination unit 37 determines that the lifting / lowering movement is not permitted, Such signal output is not performed.

  The connection switching unit 38 is provided in the wiring between the car remote control 10 and the operation control unit 32. The connection switching unit 38 includes, for example, a connection circuit including an a-contact relay. The connection switching unit 38 switches connection and disconnection between the car remote control 10 and the operation control unit 32 by switching opening and closing of the contacts according to a signal from the determination unit 37.

  The connection switching unit 38 closes the contact when the signal from the determination unit 37 is input. As a result, when the determination unit 37 determines that the up-and-down movement is permitted, the connection switching unit 38 connects the on-car remote control 10 and the operation control unit 32, so that the operation control unit 32 is connected to the on-car remote control 10. The car 2 is moved up and down in accordance with the operation. The connection switching unit 38 opens the contact when the signal from the determination unit 37 is not input. As a result, when the determination unit 37 determines that the up-and-down movement is not permitted, the connection switching unit 38 disconnects the connection between the car remote control 10 and the operation control unit 32, so that the operation control unit 32 The car 2 is not moved up and down in response to an operation on the upper remote controller 10. The elevator control system 30 may use any configuration in addition to the connection switching unit 38 provided with a relay for switching whether or not the car 2 can be raised and lowered by an operation on the on-car remote controller 10. The elevator control system 30 may include any of the components included in the control device 7 in the present embodiment in the car 2. For example, the car number acquiring unit 33 may be provided in the car 2.

  FIG. 4 is a flowchart showing a procedure of control processing by the elevator control system 30 according to the first embodiment. At the start of the control process, the connection switching unit 38 is in a disconnected state, and the car 2 cannot be raised or lowered by an operation on the car remote controller 10.

  The total car number acquisition unit 34 acquires the total number of workers W in the car 2 and on the upper surface S according to the load signal from the load sensor 12 (S1). When the image data from the camera 31 is input, the in-car number acquisition unit 33 detects a human body image from the image captured by the camera 31 and acquires the number of workers W inside the car 2 ( S2). The upper car number acquiring unit 35 calculates the number of workers W on the upper surface S of the car 2 by subtracting the number acquired by the in-car number acquiring unit 33 from the number acquired by the total car number acquiring unit 34. (S3).

  The safety belt number acquisition unit 36 acquires contact information and individual information of the safety belt 14 that is hooked on the safety belt attachment hook 11 (S4). The safety belt number acquisition unit 36 grasps the number of the latching devices 22 in which contact is detected from the contact information, and grasps the type of the safety belt 14 corresponding to each latching device 22 from the individual information. The safety belt number acquisition unit 36 determines the type of the safety belt 14 including the hook 22 for each hook 22 for which contact is detected, and the safety belt hooked on the safety belt mounting hook 11. The number of 14 is obtained.

  The determination unit 37 determines whether or not the number of safety belts 14 that are hooked on the safety belt attachment hook 11 matches the number of workers W on the upper surface S of the car 2 (S5). When it is determined that the number of safety belts 14 matches the number of workers W on the upper surface S (S5: Yes), the determination unit 37 determines that the up-and-down movement is permitted and connects a signal indicating permission. Transmit to the switching unit 38. The connection switching unit 38 switches the contact from the open state to the closed state in response to the input of the signal from the determination unit 37, and connects the car remote control 10 and the operation control unit 32 (S6). . As a result, when the number of safety bands 14 hooked on the safety band mounting hook 11 matches the number of workers W on the upper surface S, the car 2 can be raised and lowered by an operation on the car remote control 10. It is said.

  On the other hand, when it is determined that the number of safety belts 14 does not match the number of workers W on the upper surface S (S5: No), the determination unit 37 determines that the lifting / lowering movement is not permitted, and the connection switching unit. No signal is sent to 38. The connection switching unit 38 maintains the contact open state by not receiving the signal from the determination unit 37, and continues the disconnection between the car remote control 10 and the operation control unit 32 (S7). Thus, when the number of safety belts 14 hooked on the safety belt mounting hook 11 does not match the number of workers W on the upper surface S, the car 2 cannot be lifted or lowered by the operation on the car remote control 10. Is maintained.

  The processing units such as the in-car number acquiring unit 33, the total car number acquiring unit 34, the on-car number acquiring unit 35, the safety belt number acquiring unit 36, and the determining unit 37 in the control device 7 can be implemented as follows. For example, it can be realized by causing a central processing unit such as a CPU (Central Processing Unit) to develop and execute a process that exhibits the function of each processing unit on a memory. The function of each processing unit may be executed by an MPU (Micro Processing Unit). Each processing unit may be realized by hard wired logic. Various semiconductor memory elements and flash memories can be adopted as a main storage device that each processing unit refers to as a work area. The storage device referred to by each processing unit may be an auxiliary storage device. The functions of each processing unit may be realized by executing a program prepared in advance on a computer.

  According to the first embodiment, the elevator control system 30 determines whether or not the number acquired by the number-of-cars acquisition unit 35 matches the number acquired by the safety belt number acquisition unit 36. Then, whether or not the car 2 is allowed to move up and down is determined. The elevator control system 30 enables the car 2 to move up and down after it is confirmed that the safety belts 14 of all workers W on the car 2 are hooked on the safety belt mounting hooks 11. The elevator control system 30 prevents the worker W on the car 2 from moving up and down by not allowing the car 2 to move up and down in a state where there is a worker W on which the safety belt 14 is not normally hooked. Regardless of the number of people, each worker W can be prevented from falling. Thereby, the safety of each person on the car 2 can be ensured.

[Second Embodiment]
FIG. 5 is a block diagram illustrating an example of an elevator control system 40 according to the second embodiment. The elevator control system 40 according to the present embodiment includes an announcement unit 41 in addition to the same components as the elevator control system 30 according to the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The announcement part 41 which is an audio | voice generation part is provided in the operation panel (illustration omitted) inside the cage | basket | car 2, for example. Announcement unit 41 provides voice notification to users inside car 2. In the inspection and maintenance work by the worker W, the announcement unit 41 generates a sound inside the car 2 in response to the up-and-down movement of the car 2 being permitted.

  When connection between the on-car remote controller 10 and the operation control unit 32 is made in response to a signal from the determination unit 37, the connection switching unit 38 outputs a signal indicating that the connection state has been switched from the disconnected state. The signal output from the connection switching unit 38 is transmitted to the announcement unit 41 through the wiring in the tail cord 8. When the signal from the connection switching unit 38 is input, the announcement unit 41 generates a sound indicating that the elevator can be moved up and down by the operation of the on-car remote controller 10.

  FIG. 6 is a flowchart showing a procedure of control processing by the elevator control system 40 according to the second embodiment. When the connection switching unit 38 connects between the car remote control 10 and the operation control unit 32 according to the permission determination by the determination unit 37 (S6), the announcement unit 41 can be moved up and down by operating the car remote control 10. Announcement is made (S11). On the other hand, when it is determined that the determination unit 37 does not permit and the connection switching unit 38 continues to disconnect between the car remote control 10 and the operation control unit 32 (S7), the announcement unit 41 makes an announcement. Absent.

  According to the second embodiment, the elevator control system 40 raises and lowers the worker W inside the car 2 by generating a sound from the announcement unit 41 in response to the movement of the car 2 being allowed to move up and down. Can be alerted that is now possible.

[Third Embodiment]
FIG. 7 is a block diagram illustrating an example of an elevator control system 50 according to the third embodiment. The elevator control system 50 according to the present embodiment includes a notification unit 51 in addition to the same components as the elevator control system 30 according to the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The alerting | reporting part 51 is provided in the upper surface S of the cage | basket | car 2, for example. The reporting unit 51 issues an alarm when the determination unit 37 determines that the number acquired by the number-of-cars acquisition unit 35 and the number acquired by the safety belt number acquisition unit 36 do not match. The alerting | reporting part 51 is a buzzer which generates a warning sound, for example. In addition, the alerting | reporting part 51 may be provided in positions other than the upper surface S, if the worker W in the upper surface S can fully sense an alarm sound.

  If the determination unit 37 determines that the number acquired by the number-of-cars acquisition unit 35 and the number acquired by the safety belt number acquisition unit 36 do not match, the determination unit 37 outputs a signal indicating the determination result of the mismatch. The signal output from the determination unit 37 is transmitted to the reporting unit 51 through the wiring in the tail code 8. The reporting unit 51 generates an alarm sound in response to receiving this signal.

  FIG. 8 is a flowchart illustrating a procedure of control processing by the elevator control system 50 according to the third embodiment. When it is determined that the number of safety bands 14 that are hooked does not match the number of workers W on the upper surface S (S5: No), the determination unit 37 outputs a signal to the reporting unit 51. . The reporting unit 51 generates an alarm sound in response to receiving the signal from the determination unit 37 (S21). Further, the connection switching unit 38 continues the disconnection between the car remote control 10 and the operation control unit 32 due to the determination of the non-permission of the up-and-down movement in the determination unit 37 (S7). In addition, the alerting | reporting part 51 of this embodiment may be applied to the elevator control system 40 which concerns on said embodiment.

  According to the third embodiment, the elevator control system 50 determines whether the number acquired by the upper car number acquisition unit 35 and the number acquired by the safety belt number acquisition unit 36 do not match. An alarm is issued from the reporting unit 51. The elevator control system 50 can alert the worker W that there is a worker W whose safety belt 14 is not normally hooked on the safety belt mounting hook 11.

[Fourth Embodiment]
FIG. 9 is a block diagram illustrating an example of an elevator control system 60 according to the fourth embodiment. The elevator control system 60 according to the present embodiment includes a notification unit 61, a distance information acquisition unit 62, and a proximity determination unit 63 in addition to the same components as the elevator control system 30 according to the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The distance information acquisition unit 62 and the proximity determination unit 63 are provided in the control device 7. The distance information acquisition unit 62 acquires distance information indicating the distance between the car 2 and the counterweight 4 shown in FIG. The distance information acquisition unit 62, for example, generates pulses at a constant time interval from a pulse generator (not shown), and counts the number of pulses after the car 2 starts moving. The distance information acquisition unit 62 detects the moving distance of the car 2 and the counterweight 4 based on the time counted as the number of pulses, and monitors the positional relationship between the car 2 and the counterweight 4. The distance information acquisition unit 62 calculates the distance between the car 2 and the counterweight 4 based on the positional relationship between the car 2 and the counterweight 4. The distance between the car 2 and the counterweight 4 is, for example, the distance between the upper surface S of the car 2 and the center position of the counterweight 4 in the vertical direction.

  Distance information from the distance information acquisition unit 62 is input to the proximity determination unit 63. The proximity determination unit 63 determines whether the distance between the car 2 and the counterweight 4 is equal to or less than a preset threshold value. The threshold is about 5 m, for example. When the distance between the car 2 and the counterweight 4 is determined to be equal to or less than the threshold value, the proximity determination unit 63 outputs a signal indicating that the counterweight 4 is close to the car 2. On the other hand, when it determines with the distance between the cage | basket | car 2 and the counterweight 4 being larger than a threshold value, the proximity determination part 63 does not perform this signal output. The proximity determination unit 63 may determine whether or not the distance between the car 2 and the counterweight 4 is less than a threshold value.

  The alerting | reporting part 61 is provided in the upper surface S of the cage | basket | car 2, for example. The reporting unit 61 issues an alarm when the proximity determination unit 63 determines that the distance between the car 2 and the counterweight 4 is equal to or less than a threshold value. The reporting unit 61 is a buzzer that generates an alarm sound, for example. The signal output from the proximity determination unit 63 is transmitted to the reporting unit 61 through the wiring in the tail cord 8. The reporting unit 61 generates an alarm sound in response to receiving this signal. In addition, the alerting | reporting part 61 may be provided in positions other than the upper surface S, if the worker W in the upper surface S can fully sense an alarm sound.

  FIG. 10 is a flowchart showing a procedure of control processing by the elevator control system 60 according to the fourth embodiment. When the connection switching unit 38 connects between the car remote control 10 and the operation control unit 32 according to the permission determination by the determination unit 37 (S6), the car 2 moves up and down by the operation of the car remote control 10. Is possible. The distance information acquisition unit 62 calculates the distance between the car 2 and the counterweight 4 and acquires distance information. The distance information acquisition unit 62 outputs the distance information to the proximity determination unit 63.

  The proximity determination unit 63 determines whether the distance between the car 2 and the counterweight 4 is equal to or less than a threshold value (S31). When it is determined that the distance between the car 2 and the counterweight 4 is equal to or less than the threshold value (S31: Yes), the proximity determination unit 63 outputs a signal to the reporting unit 61. The reporting unit 61 generates an alarm sound according to the signal from the proximity determining unit 63 (S32). On the other hand, when it is determined that the distance between the car 2 and the counterweight 4 is greater than the threshold (S31: No), the alarm unit 61 does not generate an alarm sound and the car 2 can be moved up and down. The state continues.

  Based on information other than the distance information between the car 2 and the counterweight 4 acquired by the distance information acquisition unit 62, the proximity determination unit 63 has a distance between the car 2 and the counterweight 4 equal to or less than a threshold value. It may be determined whether or not. For example, the proximity determination unit 63 may determine whether or not the distance between the car 2 and the counterweight 4 is equal to or less than a threshold value from the distance information from the hoisting machine 6 to the car 2. Further, the proximity determination unit 63 determines whether or not the distance between the car 2 and the counterweight 4 is equal to or less than a threshold based on information indicating the position of the car 2 in the hoistway 13 in the hoistway 13. good. In addition, the alerting | reporting part 61 of this embodiment, the distance information acquisition part 62, and the proximity determination part 63 may be applied to the elevator control systems 40 and 50 which concern on said embodiment. The reporting unit 61 may also serve as the function of the reporting unit 51 of the third embodiment.

  According to the fourth embodiment, the elevator control system 60 issues an alarm from the reporting unit 61 in response to the determination that the distance between the car 2 and the counterweight 4 is equal to or less than the threshold value. The elevator control system 60 can alert the operator W on the car 2 that the counterweight 4 is approaching by raising and lowering the car 2.

[Fifth Embodiment]
FIG. 11 is a block diagram illustrating an example of an elevator control system 70 according to the fifth embodiment. The elevator control system 70 according to the present embodiment includes a time measurement unit 72 and an abnormality notification unit 73 in addition to the same components as the elevator control system 30 according to the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The service center 71 centrally manages the maintenance and troubleshooting of the elevators 1 installed in the area to be managed. The control device 7 of the elevator control system 70 is communicably connected to the service center 71. Such communication includes, for example, remote communication via an arbitrary network regardless of wired or wireless.

  The time measurement unit 72 and the abnormality notification unit 73 are provided in the control device 7. The time measurement unit 72 measures the time from when the determination unit 37 determines that the number acquired by the number-of-cars acquisition unit 35 and the number acquired by the safety belt number acquisition unit 36 do not match. . The abnormality notifying unit 73 indicates that an abnormality has occurred when the set time has passed without the number acquired by the number-of-cars acquiring unit 35 and the number acquired by the safety belt number acquiring unit 36 being in agreement. Is notified to the service center 71 outside the elevator control system 70.

  When the determination unit 37 determines that the number acquired by the number-of-cars acquisition unit 35 and the number acquired by the safety belt number acquisition unit 36 do not match, a signal indicating the determination result of the mismatch is a time measurement unit 72. Output to. The time measuring unit 72 starts measuring time in response to receiving such a signal. The determination unit 37 periodically determines, for example, whether or not the number acquired by the number-of-cars acquisition unit 35 matches the number acquired by the safety belt number acquisition unit 36, and the determination of inconsistency continues. In this case, the signal output to the time measuring unit 72 is continued. Thereafter, when the determination unit 37 determines that the number acquired by the number-of-cars acquisition unit 35 matches the number acquired by the safety belt number acquisition unit 36, the output of the signal to the time measurement unit 72 is stopped. Let

  The time measuring unit 72 continues measuring time while the signal output from the determining unit 37 continues, and stops measuring time when the signal output from the determining unit 37 stops. When a preset set time elapses while the time measurement unit 72 measures time measurement, the time measurement unit 72 outputs a signal indicating the elapse of the set time to the abnormality notification unit 73. The set time is about 10 seconds, for example. In response to receiving the signal from the time measuring unit 72, the abnormality notification unit 73 is in an abnormal state where the worker W is on the car 2 with the safety belt 14 not being hooked on the safety belt mounting hook 11. This is notified to the service center 71. The service center 71 receives the notification from the abnormality notification unit 73 and performs various data processing and the like.

  FIG. 12 is a flowchart showing a procedure of control processing by the elevator control system 70 according to the fifth embodiment. If it is determined that the number of safety bands 14 that are hooked does not match the number of workers W on the upper surface S (S5: No), the determination unit 37 outputs a signal to the time measurement unit 72. . The time measuring unit 72 starts measuring time in response to receiving the signal from the determining unit 37 (S41).

  After the measurement by the time measuring unit 72 is started, the determination unit 37 determines whether or not the number of the safety belts 14 that are hooked up matches the number of workers W on the upper surface S (S42). ). When it is determined that the number of safety belts 14 matches the number of workers W on the upper surface S (S42: Yes), the connection switching unit 38 moves between the car remote control 10 and the operation control unit 32. Connect (S6). On the other hand, when it is determined that the number of safety bands 14 does not match the number of workers W on the upper surface S (S42: No), the determination unit 37 continues to output a signal to the time measurement unit 72.

  The time measuring unit 72 determines whether or not the set time has elapsed since the start of time measurement (S43). When the set time has not elapsed (S43: No), the time measurement by the time measurement unit 72 is continued, and the determination unit 37 repeats the determination (S42). On the other hand, when the set time has elapsed (S43: Yes), the time measuring unit 72 outputs a signal indicating the elapse of the set time to the abnormality notifying unit 73. The abnormality notification unit 73 notifies the service center 71 of the abnormality in response to receiving the signal from the time measurement unit 72 (S44). Further, the connection switching unit 38 continues the disconnection between the car remote control 10 and the operation control unit 32 due to the determination of the non-permission of the up-and-down movement in the determination unit 37 (S7). In addition, the time measurement part 72 and the abnormality notification part 73 of this embodiment may be applied to the elevator control systems 40, 50, 60 according to the above embodiments.

  According to the fifth embodiment, the elevator control system 70 has passed the set time without the number acquired by the number-of-cars acquisition unit 35 and the number acquired by the safety belt number acquisition unit 36 being in agreement. In this case, the abnormality notification unit 73 notifies that an abnormality has occurred. The elevator control system 70 can notify the outside that the worker W without the safety belt 14 being hooked is in an abnormal state on the car 2.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  1 elevator, 2 cars, 4 counterweights, 5 main rope (rope), 6 hoisting machine, 7 control device, 11 safety belt mounting hook (mounting structure), 12 load sensor (load detection part), 14 safety belt, 22 latching device (holding member), 23 contact sensor (contact detection unit), 25 IC tag (storage unit), 26 tag reader (reading unit), 30, 40, 50, 60, 70 elevator control system, 33 in the car Number of people acquisition unit, 34 Total number of people acquisition unit, 35 Number of people on car acquisition unit, 36 Number of safety belt acquisition unit, 37 Judgment unit, 41 Announcement unit (voice generation unit) 51, 61 Notification unit, 63 Proximity determination unit, 73 Abnormality notification unit, S upper surface, W worker.

In the elevator control system of the embodiment, the number of persons on the upper surface of the elevator car is acquired, and the person on the upper surface is hooked on the mounting structure provided on the car. A safety belt number acquisition unit for acquiring the number of safety belts attached ; the number of people on the upper surface acquired by the number of people on the car acquisition unit; and the number acquired by the safety belt number acquisition unit. And a determination unit that determines whether or not the car is allowed to move up and down , and the safety belt is capable of transmitting information to a hooking member that can be connected to the mounting structure. A contact detection unit that includes a transmission unit and a storage unit that stores information indicating the number of the latch members per one of the safety belts, and the latch member detects contact with the mounting structure. The mounting structure includes the storage unit and the mounting structure. The safety band number acquisition unit, the contact detection unit detects contact with the mounting structure, and when the reading unit reads the information from the storage unit, It is detected that the safety belt is hooked on the mounting structure by detecting that each of the number of the hook members per one safety belt is connected .

Claims (8)

A car number acquisition unit for acquiring the number of people on the upper surface of the elevator car;
A safety belt number acquisition unit that acquires the number of safety belts attached to each person on the upper surface, which is hooked on a mounting structure provided in the car;
It is determined whether the number of people on the upper surface acquired by the upper car number acquisition unit matches the number acquired by the safety belt number acquisition unit, and the car is moved up and down. An elevator control system comprising: a determination unit that determines whether or not the vehicle is permitted. A load detector for detecting the load of the car;
Based on the detection result by the load detection unit, the total number of people acquisition unit to obtain the total number of people in the car and the upper surface,
A number-of-cars acquisition unit for acquiring the number of people inside the car,
The number of people on the car is obtained by subtracting the number of people acquired by the number-of-people acquisition unit in the car from the total number of people acquired by the total number of people acquisition unit of the car. Calculating as a number,
The elevator control system according to claim 1. The safety belt includes a hooking member that can be connected to the mounting structure, and a transmitter that can transmit information.
The latch member includes a contact detection unit that detects contact with the mounting structure,
The safety belt number acquisition unit obtains the number of the safety belts hung on the mounting structure based on a detection result by the contact detection unit received from the safety belt. Or the elevator control system of 2. The safety belt includes a storage unit that stores information indicating the number of the latch members per one of the safety belts,
The mounting structure includes a reading unit that reads the information from the storage unit,
4. The elevator according to claim 3, wherein the safety belt number acquisition unit receives the information read by the reading unit and obtains the number of the safety belts that are hung on the mounting structure. 5. Control system.   The elevator control system according to any one of claims 1 to 4, further comprising a sound generation unit that generates a sound inside the car in response to the permission of the up-and-down movement.   When the determination unit determines that the number of people on the upper surface acquired by the upper car number acquisition unit and the number acquired by the safety belt number acquisition unit do not match, The elevator control system according to any one of claims 1 to 4, further comprising a notification unit that issues A proximity determining unit that determines whether the distance between the car and the counterweight connected to the car via a rope wound around the hoisting machine is less than a threshold;
The elevator control system according to any one of claims 1 to 4, further comprising: a notification unit that issues a warning when the proximity determination unit determines that the distance is less than the threshold.   An abnormality has occurred when a set time has passed without the number of people on the upper surface acquired by the upper car number acquiring unit and the number acquired by the safety belt number acquiring unit being in agreement. The elevator control system according to any one of claims 1 to 4, further comprising an abnormality notification unit that notifies the outside of the fact.

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