JP2004323195A - Elevator radio control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform control by wirelessly communicating an elevator, and switch control for the elevator by sensing of a slave control panel when a master control panel does not normally function. <P>SOLUTION: An elevator shaft of an elevator radio system 1A comprises a control circuit of a first control panel 33 installed in an elevator shaft for receiving a transmission signal wirelessly transmitted by a communication device 27 in a hall 7 and a transmission signal wirelessly transmitted by a communication device 37 in a car 19 for performing a predetermined control. On the other hand, a control circuit 39 of a second control panel 21 has a monitoring circuit 39A acquiring a condition of the first control panel 15, a detection circuit 39B detecting abnormal information from the information acquired by the monitoring circuit 39A, and a switch circuit 39C switching a slave function into a master function when the abnormal information is detected. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator radio control system, and more particularly, to an elevator radio control system in which a second control panel safely controls an elevator by radio when a first control panel fails.
[0002]
[Prior art]
Conventionally, it has been a rule that one control panel is installed in an elevator machine room or a hoistway for one elevator, and all controls are performed by the one control panel.
[0003]
Further, in the conventional method, there are a method of transmitting information signals between the landing and the car side and the control panel by wire, and a method of transmitting wirelessly.
[0004]
Furthermore, when wirelessly transmitting information signals between the landing and the car side and the control panel, the landing side power supply uses a solar cell (including a battery), and the car side power supply supplies contact and non-contact power supply. Systems using devices (including batteries) have been devised.
[0005]
See also Patent Document 1.
[0006]
[Patent Document 1]
JP 2001-151429 A
[Problems to be solved by the invention]
In such a conventional elevator control system, in the wired method, there are wiring work from each landing to the control panel and wiring work including a moving cable from the car to the control panel, and the wiring work at the site takes time. There is.
[0008]
Furthermore, since the moving cable becomes longer in a high-rise building, there is a problem that the shaking of the moving cable may cause contact with the equipment in the hoistway, entanglement between the moving cables, and a burden of the moving cable weight on the car side. .
[0009]
Due to such a problem, when the wireless transmission system is used, even if the above problem is solved, there is a problem that noise is likely to be included in a transmission signal as compared to the wired system and a malfunction may occur.
[0010]
[Means for Solving the Problems]
The present invention has been made in view of the above problems, and in addition to the conventional wireless system and the power supply system, the present system provides an elevator control function to the second control panel installed on the car side, Normally, when a malfunction occurs in the first control panel that controls the elevator and control becomes impossible, the second control panel senses the malfunction state of the first control panel and moves the car up and down to the nearest floor This system has a backup function that opens the door.
[0011]
That is, the invention according to claim 1 is an elevator radio control system that wirelessly controls an elevator including a plurality of landings, a hoistway, and a car that moves up and down the hoistway,
A first control installed in a hoistway that receives a wireless signal transmitted by a landing-side communication device and a wireless signal transmitted by a car-side communication device by a communication device in the hoistway and performs predetermined control Panel control circuit,
A second control panel installed on a car side that receives a radio signal generated by a control circuit of the first control panel and transmitted by a communication device in the hoistway, and that controls a car-side device based on the radio signal. And a control circuit of
The control circuit of the second control panel includes a monitoring circuit that acquires a state of the first control panel, a detection circuit that detects an abnormal state from information acquired by the monitoring circuit, and a slave function when the abnormal state is detected. And a switching circuit for switching to a master function.
[0012]
According to a second aspect of the present invention, when the control circuit of the second control panel becomes the master function, it backs up the information on the landing side and the information from the first control panel, and moves the car to the nearest location based on the backed up information. Has a treatment circuit for generating a stop command to stop at the floor, the communication device in the hoistway receives the stop command transmitted by the communication device on the car side, and the direct drive circuit of the first control panel responds to the stop command The elevator radio control system according to claim 1, wherein the car is stopped at a nearest floor based on the car.
[0013]
The invention according to claim 3 is the elevator radio control system according to claim 1 or 2, wherein the wireless transmission system is a spread spectrum system.
[0014]
In the invention according to claim 4, the power supply on the landing side is performed by power generation of a solar cell incorporated in the panel panel of the landing operation panel, and the power supply on the car side is supplied to the car side by the contact or non-contact power supply device during standby of the elevator. 4. The elevator wireless control system according to claim 1, wherein the battery is charged.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0016]
Please refer to FIG. 1 and FIG. FIG. 1 shows a schematic configuration of the elevator radio control system 1. The arrangement position and the like of each device constituting the elevator radio control system 1 will be described with reference to the perspective view of FIG.
[0017]
In addition, in the perspective view of FIG. 2, the elevator hoisting drive device 17 is arranged at the lower part of the hoistway, but the present system can also arrange the elevator hoisting drive device 17 at the upper part of the hoistway and on the side surface of the hoistway.
[0018]
As shown in FIG. 1, the elevator radio control system 1 of the present embodiment includes a 1F hall 3, a 2F hall 5, a 3F hall 7, a 4F hall 9, a 5F hall 11, and a 6F hall 13. A first control panel 15 and an elevator lifting drive 17 are provided in the hoistway 18 (see FIG. 2). Each of the landings can wirelessly communicate with the first control panel 15 via a communication device.
[0019]
On the other hand, a basket 19 that moves up and down the hoistway 18 is provided with a second control panel 21. The lower limit switch 23 and the upper limit switch 25 for ensuring safety when the car 19 is raised and lowered are provided.
[0020]
In this example, for ease of understanding, the description will focus on the 3F landing 7, the first control panel 15, the elevator lifting / lowering drive device 17, and the car 19 (including the second control panel 21).
[0021]
Please refer to FIG. An arrangement position of each device of the above-described elevator radio control system 1 is shown three-dimensionally. The first control panel 15 is disposed near the first floor in the hoistway 18. The first control panel 15 includes a communication device 31. On a car 19 that moves up and down the hoistway 18 by the elevator elevating drive device 17, a second control panel 21 and a communication device 37 are arranged. The push buttons installed at each landing are provided with a communication device 27 (for example, see the 3rd floor). In this way, each device can be controlled wirelessly even if each device is remote.
[0022]
In addition, in the case of the 3F landing, it is assumed that all the other landings are similarly described.
[0023]
Please refer to FIG. The communication device 27 (for example, a device that wirelessly transmits a command generated by a person who gets on the elevator from the 3F landing and presses the call button of the car) is provided on the 3F landing 7 of the elevator wireless control system 1A limited as described above. And a landing device 29 (for example, a switch, an indicator panel, a push button, etc.).
[0024]
The first control panel 15 provided in the hoistway 18 (see FIG. 2) includes a communication device 31, a control circuit 33, and a drive circuit 35.
[0025]
The communication device 31 wirelessly communicates with the 3F hall 7 and the car 19. The control circuit 33 receives, for example, a wireless signal wirelessly transmitted by the communication device 27 of the landing 7 and a wireless signal wirelessly transmitted by the communication device 37 of the car 19 by the communication device 31 in the hoistway. Perform predetermined control. The drive circuit 35 is a circuit for driving the elevator elevating drive device 17.
[0026]
The basket 19 includes a second control panel 21 and each device 41. The second control panel 21 includes a communication device 37 and a control circuit 39. The communication device 37 transmits and receives wireless signals to and from the control panel 15.
[0027]
Further, the control circuit 39 includes a monitoring circuit 39A for acquiring a state of the first control panel 15, a detection circuit 39B for detecting an abnormal state from information acquired by the monitoring circuit 39A, and a slave circuit for detecting the abnormal state. A switching circuit 39C for switching the function to the master function.
[0028]
The control circuit 39 of the second control panel 21 backs up the information on the hall 7 side and the information from the first control panel 15 when the switching circuit 39C has the master function, and based on the backed up information. It has a treatment circuit (not shown) for generating a stop command to stop the car 19 at the nearest floor.
[0029]
Here, the above-mentioned backed-up information is information sufficient for grasping, for example, the current position of the car 19 and the overall state of the elevator including the open / closed state of the door.
[0030]
Then, the communication device 31 in the hoistway receives the stop command wirelessly transmitted by the communication device 37 on the car 19 side, and the drive circuit (for example, acting as a direct drive circuit) 35 of the first control panel 15 responds to the stop command. Based on this, the basket 19 is stopped at the nearest floor.
[0031]
This will be described in more detail. The control system for normal operation of the elevator receives radio signals from the communication devices 27 and 37 on the 3F landing 7 and the car 19 side by the communication device 31 of the first control panel 15, controls by the control circuit 33, and A radio signal is sent to the 3F landing 7 and the like and the communication devices 27 and 37 of the car 19 to control each device. In addition, when the elevator is moved up and down, the elevator circuit 17 is operated by the drive circuit 35 to operate the elevator up and down driving device 17. Let it. The above is the control system of the normal operation. This system includes the control circuit 39 of the second control panel 21 with a monitoring circuit 39A for monitoring the operation of the first control panel 15, a detection circuit 39B for detecting an abnormal state, A switching circuit 39C for switching the slave function to the master function and a function for controlling the operation of the car 19 to the nearest floor are provided, and an elevation command is generated based on a radio signal or the like from the communication device 31 of the first control panel 15, The communication device 37 gives an ascending / descending command to the communication device 31 and controls the driving circuit (acting as a direct driving circuit) 35 from the communication device 31 to operate the elevator elevating / driving device 17 to drive the car 19 to the nearest floor, This is a system for opening an elevator door by a control circuit 39 of the second control panel 21.
[0032]
FIG. 4 shows an example of monitoring of the first control panel 15 using a normal function of the second control panel 21.
[0033]
That is, each device 41 on the side of the car 19 includes an operation button 43, a limit switch 45, a load detection device 47, a door opening / closing device 49, a lighting / ventilating device 51, a broadcasting device 53, and an indicator light 55. . These are directly controlled by the control circuit 39 of the second control panel 21. That is, the signals of the operation buttons 43, the limit switch 45, and the load detection device 47, which are input devices, are input to the control circuit 39, and the input signals are transmitted via the communication device 37 to the communication device 31 of the first control panel 15. To communicate wirelessly.
[0034]
Thereafter, the processed wireless signal is wirelessly transmitted from the communication device 31 of the first control panel 15 to the communication device 37 of the second control panel 21. The control circuit 39 controls the door opening / closing device 49, the lighting / calling device 51, the broadcasting device 53, and the indicator light 55, which are the devices on the output side, based on the signal content after this processing. At this time, the monitoring circuit 39A monitors the reception of the wireless signal transmitted from the first control panel 15. If the signal cannot be received after a certain period of time, the detection circuit 39B determines that the first control panel 15 is abnormal. Then, the switching circuit 39C switches the slave function of the second control panel 21 to the master function. Thereby, the second control panel 21 can appropriately monitor the first control panel 15.
[0035]
This system is a system in which signals between the landing, the hoistway, and the car are mutually transmitted wirelessly (spread spectrum method) via the communication devices 27, 31, and 37. This radio system is a spread spectrum system resistant to noise, uses a 2.4 GHz band radio frequency, and uses an FSK data modulation system as a modulation system.
[0036]
Further, power is supplied to the landing and the car by charging the battery by power generation of a solar cell incorporated in the landing operation panel panel surface on the landing side. For the car side, the battery on the car side is charged and used by the contact or non-contact power supply device when the elevator is on standby.
[0037]
The overall operation of the elevator control system according to the present example will be described with reference to FIG.
[0038]
In step S501, the first control panel 15 receives wireless signals from the communication devices 27 and 37 on the car 19 and the landing 7, and the like. In step S503, the first control panel 15 determines whether the control circuit 33 opens or closes or moves up and down based on the wireless signal received by the communication device 31.
[0039]
In step S505, the process proceeds to step S507 when the operation is the door opening / closing operation, and proceeds to step S513 when the operation is not the door opening / closing operation.
[0040]
In step S507, the communication device 31 transmits a door opening / closing command to the second control panel 21. In step S509, the second control panel 21 opens and closes the door. In step S511, the communication device 31 receives a door open / close completion signal from the second control panel 21. In step S519, the process enters a standby state.
[0041]
On the other hand, in step S513, the elevator elevating / lowering drive device 17 is operated to raise / lower the car 19 and stop at the destination floor. In step S515, a door opening / closing command is transmitted to the second control panel 21.
[0042]
In step S517, the communication device 31 (that is, the first control panel 15 side) receives a door open / close completion signal from the second control panel. Then, it waits at step S519.
[0043]
The operation of the second control panel 21 will be described with reference to FIG.
[0044]
In step S <b> 601, the communication device 37 of the second control panel 21 always receives the operable signal from the first control panel 15. In step S603, various commands are received from the first control panel 15. In step S605, the second control panel 21 controls door opening and closing, lighting, lamp lighting / broadcasting, and the like.
[0045]
In step S607, it is determined whether the operable signal of the first control panel 15 has been turned off (the determination method is performed by the above-described method). When it is determined that the switch has been turned off, the process proceeds to step S609. If it is determined that the switch has not been turned off, the process returns to step S601. Then, the above processing is performed again.
[0046]
In step S609, it is determined whether or not the backup operation is possible based on signals from the first control panel 15 and the communication device 27 at the landing. In step S611, when it is determined that the backup operation is possible, the process proceeds to step S613. If it is determined that the backup operation is not possible, the process proceeds to step S615 and stops the operation.
[0047]
In step S613, the car 19 is driven to the nearest floor, and the door is opened and closed. In step S617, the process enters a standby state.
[0048]
The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.
[0049]
【The invention's effect】
As described above, according to the present invention, when the control circuit of the first control panel that controls the entire elevator stops functioning normally, the second control panel changes from the slave function to the master that performs the entire function. Since the function is switched to the above function, there is an effect that safety is improved.
[0050]
Further, in the wireless system, wiring work from each landing to the control panel and wiring work from the car to the control panel are eliminated, so that the construction period at the installation site is shortened and resources are saved. Furthermore, since the moving cable is eliminated, there is an effect that the space can be saved, the moving cable can be prevented from being entangled, and the burden of the moving cable on the car side can be eliminated.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a schematic configuration of an elevator radio control system.
FIG. 2 is a perspective view showing a schematic configuration of the elevator radio control system in a three-dimensional manner.
FIG. 3 is a schematic diagram showing a schematic configuration of an elevator radio control system.
FIG. 4 is a schematic diagram showing a schematic configuration of an elevator radio control system.
FIG. 5 is a flowchart illustrating the operation of the elevator radio control system.
FIG. 6 is a flowchart illustrating the operation of the elevator radio control system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 elevator radio control system 3 1F hall 5 2F hall 7 3F hall 9 4F hall 11 5F hall 13 6F hall 15 First control panel 17 Elevator drive 19 Cage 21 Second control panel 23 Bottom floor limit switch 25 Top floor limit switch

Claims (4)

In an elevator radio control system that wirelessly controls an elevator including a plurality of landings, a hoistway, and a car that moves up and down the hoistway,
A first control installed in a hoistway that receives a wireless signal transmitted by a landing-side communication device and a wireless signal transmitted by a car-side communication device by a communication device in the hoistway and performs predetermined control Board control circuit,
A second control panel installed on a car side that receives a radio signal generated by a control circuit of the first control panel and transmitted by a communication device in the hoistway, and that controls a car-side device based on the radio signal. And a control circuit of
The control circuit of the second control panel includes a monitoring circuit that acquires a state of the first control panel, a detection circuit that detects an abnormal state from information acquired by the monitoring circuit, and a slave function when the abnormal state is detected. An elevator radio control system, comprising: a switching circuit for switching to a master function. The control circuit of the second control panel backs up the information on the landing side and the information from the first control panel when the master function is attained, and issues a stop command to stop the car on the nearest floor based on the backed up information. Having a treatment circuit for generating
The communication device in the hoistway receives the stop command transmitted by the communication device on the car side, and the direct drive circuit of the first control panel stops the car on the nearest floor based on the stop command. 2. The elevator radio control system according to claim 1. 3. The elevator radio control system according to claim 1, wherein the radio transmission system is a spread spectrum system. The power supply on the landing side shall be performed by power generation of the solar cell built into the panel panel of the landing operation panel, and the power supply on the car side shall be performed by charging the battery on the car side by the contact or non-contact power supply device during standby of the elevator. The elevator radio control system according to claim 1, 2, or 3, wherein

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