JP2003306277A - Elevator maintenance system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a maintenance equivalent to that of directly operating a control panel installed in a hoistway without being restricted by an installation space at a landing. <P>SOLUTION: When an elevator having the control panel 13 installed in the hoistway 11 for a car 12 is performed, a maintenance tool 20 having a function necessary for the maintenance is connected to a maintenance tool joining connector 15 in a connector box 14 installed at the landing on a specified story. The control panel 13 in the hoistway 11 is remotely operated from the maintenance tool 20 through the maintenance tool joining connector 15 for maintenance. Thus, the maintenance equivalent to that of directly operating the control panel 13 installed in the hoistway can be performed without being restricted by the installation space at the landing. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine roomless elevator maintenance system in which a control panel is installed in a hoistway of a car.

[0002]

2. Description of the Related Art A general elevator has a machine room above the top floor where a car stops.
Maintenance personnel were able to maintain the elevator by standing in front of the control panel in this machine room and operating the control panel directly. However, in the machine roomless type elevator where the control panel is installed in the hoistway, maintenance personnel cannot directly operate the control panel.
An auxiliary control panel having the function of a control panel was installed on the top floor landing, and maintenance personnel were to perform maintenance work by operating this auxiliary control panel at the landing.

[0003]

As described above, in the conventional machine roomless type elevator, since the control plate in the hoistway cannot be directly operated, the auxiliary control panel is installed at the landing on the top floor. Then, this auxiliary control panel was operated at the landing for maintenance work. However, in order to perform the maintenance that could be achieved by directly operating the control panel in the hoistway with another auxiliary control panel, this auxiliary control panel itself must have many functions. There was a problem that the operation panel became large and the installation space at the landing was restricted.

The present invention has been made in view of the above points, and performs the same maintenance as directly operating the control panel installed in the hoistway without being restricted by the installation space at the landing. It is an object of the present invention to provide an elevator maintenance system that can be used.

[0005]

The present invention relates to a maintenance system for an elevator having a control panel installed in a hoistway of a car, and a portable maintenance device having a function necessary for maintenance and a specific location. A connector box installed with a connector connected to the control panel, wherein the maintenance device is connected to the connector in the connector box to remote the control panel from the maintenance device at the specific place. The feature is that it is operated manually for maintenance.

According to such a structure, just connecting the maintenance device to the connector in the connector box installed at a specific location is equivalent to directly operating the control panel in the hoistway at that location. Since maintenance can be performed and the maintenance device can be carried around, maintenance can be performed without securing an installation place at the landing.

Further, the present invention relates to an elevator maintenance system in which a control panel is installed in a hoistway of a car, and a portable maintenance device having a function necessary for maintenance and a wireless communication function.
A wireless terminal installed at a specific location and connected to the control panel, and the maintenance device is wirelessly connected to the wireless terminal to remotely control the control panel from the maintenance device at the specific location. It is characterized by operating and performing maintenance.

According to this structure, a maintenance device having a wireless communication function is used, and the maintenance device is simply connected to a wireless terminal installed at a specific place by radio, and the hoistway is located at that place. You can perform the same maintenance as directly operating the control panel inside,
Further, since the maintenance device is portable, it is not necessary to secure an installation place at the landing, and further, maintenance can be performed anywhere within the wireless communication range of the wireless terminal.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is a diagram showing the configuration of an elevator maintenance system according to a first embodiment of the present invention. In the figure, 11 is a hoistway, 12 is a car, and 13 is Figure 3 shows an elevator control board.

In a machine roomless elevator, a control panel 13 is installed in the hoistway 11. The control panel 13 is installed in a place other than the pit in the hoistway 11, usually above the top floor. This is because if the control panel 13 is installed in the pit, water may enter the control panel 13 to cause a failure if a flood or the like occurs.

Here, in the first embodiment, the connector box 1 is installed at a specific place on the premises, here, at the platform on the top floor.
4 are installed. In this connector box 14,
In addition to a maintenance tool connector 15 for connecting a maintenance tool 20 which will be described later, a power cutoff switch 16 for cutting off the operation power of the elevator as a minimum necessary switch and a control console for connecting a control console (not shown). The connection connector 17 and the like are stored. The maintenance tool connector 15 in the connector box 14 is connected to the control panel 13 via a cable 18. Similarly, the power cutoff switch 16 and the control console connection connector 17 are also connected to the control panel 13 via a cable not shown
It is connected to the.

The maintenance tool 20 is a portable maintenance-only device having functions required for elevator maintenance and is also called a maintenance device.
The maintenance tool 20 includes a connector box 1
A terminal 21 detachably attached to the maintenance tool connection connector 15 housed in 4 is connected via a cable 22. In addition, various operation buttons (inspection mode button, power cutoff button, trace button, etc.) necessary for maintenance and a display for confirming the inspection result are provided on the operation surface.

FIG. 2 is a conceptual diagram when performing maintenance work in an elevator hall (landing), in which 1 is an elevator hall, 2 is a maintenance person, 3 is a hold door, 4
Indicates a three-sided frame surrounding the hold door, and 5 indicates a hole button (car call button). The connector box 14
Is hidden behind the operation panel 6 provided with the hall buttons 5 and the like so that no one other than the maintenance personnel 2 can touch it. Further, an openable / closable cover 14a is attached to the connector box 14 as shown in FIG. 1, and the cover 14a is closed and locked when not in use.

In such a structure, when the maintenance staff 2 performs the maintenance work of the elevator, first, the operator goes to the landing 1 on the uppermost floor, removes the operation panel 6 provided with the hall button 5, The cover 14a of a certain connector box 14 is opened, and the maintenance tool connection connector 15 connected to the control panel 13 is pulled out.
Then, the maintenance tool 20 is connected to the maintenance tool connection connector 15, and the maintenance tool 2
The control panel 13 is remotely operated through the maintenance tool connector 15 by operating various switches provided on the display unit 0, and the maintenance work is performed while confirming the inspection result and the like on the display.

In addition to the maintenance tool connection connector 15, a power cutoff switch 16 and a control console connection connector 17 are provided in the connector box 14, and for example, the power cutoff switch 16 is operated to cut off the elevator power. Alternatively, a control console (not shown) is connected to the control console connector 17 to set the parameters of the control panel 13.

As described above, according to the first embodiment, by simply connecting the maintenance tool 20 to the maintenance tool connection connector 15 in the connector box 14 at the top floor, the control panel 13 in the hoistway 11 can be connected. It is possible to perform the same maintenance as directly operating. In this case, the maintenance tool 20 is portable,
Since it can be connected to the maintenance tool connection connector 15 in the connector box 14 as needed, maintenance can be performed without securing an installation space at the landing.

In the first embodiment described above, the connector box 14 is installed at the landing on the top floor, and the maintenance tool 20 is used to perform the maintenance work there. However, it is not limited to the top floor, but other floors. The connector box 14 may be installed at the landing and the maintenance work may be performed there.

Further, the maintenance tool 20 may be provided with an authentication function using an ID, a password and the like so that only a person authorized in advance can use the maintenance tool 20. It is possible to prohibit maintenance work by people.

(Second Embodiment) Next, a second embodiment of the present invention will be described.

FIG. 3 is a view showing the arrangement of an elevator maintenance system according to the second embodiment of the present invention.
A machine roomless elevator in which a control panel 13 is installed in the hoistway 11 of the car 12 is shown.

Similar to the first embodiment (FIG. 1), the connector box 14 is installed at the landing on the top floor, and the maintenance tool 20 is connected to the maintenance tool connection connector 15 in the connector box 14. Is configured to perform maintenance work.

Here, the second embodiment is characterized in that the maintenance tool 20 has an interface function capable of connecting the personal computer 30. That is, the maintenance tool 20 is connected with the personal computer connecting connector 23 for connecting the personal computer 30 via the cable 24. Further, the personal computer 30 has a terminal 31 detachably attached to the personal computer connecting connector 23.
Are connected via a cable 32.

In such a structure, when the maintenance staff 2 performs the maintenance work of the elevator, first, like the first embodiment, the operation panel 6 of the hall button 5 is first operated at the landing 1 on the top floor. Remove the cover 14a of the connector box 14 inside it, and remove the control panel 13
Maintenance tool connector 15 connected to
Pull out. Then, the maintenance tool 20 is connected to the maintenance tool connector 15, and the control panel 13 is remotely operated by operating various switches provided on the maintenance tool 20 to check the inspection result displayed on the display. While doing maintenance work.

The maintenance tool 20 is connected to the maintenance tool connector 15 in the connector box 14.
With the maintenance tool 20 connected to the personal computer 30, the trace data of the control signal in the control panel 13 is transferred to the personal computer 30 to be displayed on the screen of the personal computer 30 or input from the personal computer 30. The parameter values to be set are transferred to the control panel 13 and set.

As described above, according to the second embodiment, by adding the interface function for connecting the personal computer 30 to the maintenance tool 20, the function of the personal computer 30 is used to directly operate the control panel 13 until now. By doing so, it becomes possible to display the trace data and set the parameters.

In the second embodiment, the connector box 14 is installed at the landing on the top floor, and the maintenance tool 20 is used to perform the maintenance work there. However, it is not limited to the top floor, and other floors are used. The connector box 14 may be installed at the landing and the maintenance work may be performed there.

(Third Embodiment) Next, a third embodiment of the present invention will be described.

FIG. 4 is a view showing the arrangement of an elevator maintenance system according to the third embodiment of the present invention.
A machine roomless elevator in which a control panel 13 is installed in the hoistway 11 of the car 12 is shown.

Similar to the first and second embodiments,
A connector box 14 is installed at a specific place on the premises, here at a landing on the top floor. A maintenance tool connector 15 for connecting the maintenance tool 20 and the like are housed in the connector box 14. Although not shown here, the maintenance tool connector 15 in the maintenance tool 20 is not shown.
Is connected to the control panel 13 via a cable. Further, the installation place of the connector box 14 is assumed to be the back side of the operation panel 6 of the hall button 5 at the top floor landing.

Here, the third embodiment is characterized in that the connector boxes 41 similar to the connector box 14 are individually installed not only on the top floor landing but also on the landings on other floors. These are installed on the back side of the operation panel 44 provided with the hall buttons 43 on each floor. Further, a similar connector box 45 is installed in the pit 11a in the hoistway 11, and further, the car 12
A similar connector box 47 is also installed on the above. Maintenance tool connection connectors 42, 46, 4 housed in these connector boxes 41, 45, 47
Each of 8 is connected to the control panel 13 via a cable (not shown).

In such a structure, when performing maintenance work at a landing on a floor other than the top floor, the operation panel 44 of the hall button 43 installed at the landing on that floor.
The maintenance tool connection connector 42 is pulled out from the connector box 41 inside the connector and connected to the maintenance tool 20 for maintenance work. At that time, as described in the second embodiment, the personal computer 30 can be connected to the maintenance tool 20 to display trace data of control signals and set parameters.

The same applies when performing maintenance work on the pit 11a in the hoistway 11 or on the car 12, and if the pit 11a is located, the maintenance tool connecting connector 46 is pulled out from the connector box 45, and on the car 12 The maintenance tool connection connector 48 is pulled out from the connector box 47, and the maintenance tool 20 is connected thereto to perform maintenance work. At this time, if the personal computer 30 is connected to the maintenance tool 20, the trace data of the control signal can be displayed and parameters can be set.

As described above, according to the third embodiment, the maintenance tool 20 can be installed not only on the top floor but also on other floors, and also on the pit 11a in the hoistway 11 and on the car 12. It is possible to perform maintenance equivalent to directly operating the control panel 13 in the hoistway 11 using
Further, by connecting the personal computer 30 to the maintenance tool 20, it is possible to display trace data of control signals on the control panel 13 and set parameters.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described.

FIG. 5 is a view showing the arrangement of an elevator maintenance system according to the fourth embodiment of the present invention.
A machine roomless elevator in which a control panel 13 is installed in the hoistway 11 of the car 12 is shown.

The fourth embodiment is characterized in that the control panel 13 in the hoistway 11 is wirelessly connected and operated from a landing on each floor. That is, the maintenance tool 20 is equipped with a wireless device 25, and each floor is equipped with a wireless terminal 51 for realizing a wireless interface between the control panel 13 and the maintenance tool 20. Also, pit 1 in hoistway 11
Similar wireless terminal 52 on 1a and car 12;
53 are installed respectively. These wireless terminals 51 to 53 are connected to the control panel 13, respectively.

As the wireless interface,
For example, Bluetooth is used. Bluetooth
The oth is a wireless communication system conforming to a short-range wireless communication standard, and is, for example, 2.45 GHz ISM (Indust
Approximately 1 using radio waves in the (rial Scientific Medical) band
It realizes 0 m wireless communication.

The power cutoff switch 16 shown in FIG.
When installing the minimum necessary switches such as, for example, at the hall, the hall button 5 on the top floor hall as shown in FIG.
A switch box 54 is provided on the back of the operation panel 6 of
Switches connected to the control panel 13 may be installed in the switch box 54.

In such a structure, since the maintenance tool 20 is wireless when performing maintenance work, it is within the communicable range of the wireless terminal 51 without removing the operation panel provided with the hall buttons at each floor. The maintenance tool 20 is brought in and the maintenance work is performed by wireless communication while operating various switches of the maintenance tool 20. In this case, when various switches of the maintenance tool 20 are operated, a signal corresponding to the switch operation at that time is converted into a radio wave of a specific frequency band by the radio device 25 and transmitted. This radio wave is received by the radio terminal 51, converted into an electric signal there and given to the control panel 13. The same applies to the case of sending a signal from the control panel 13 to the maintenance tool 20, which is performed by wireless communication.

The pitch 11a in the hoistway 11 and the car 1
Maintenance work on 2 is the same, pitch 11a
Then, bring the maintenance tool 20 within the communicable range of the wireless terminal 52, and on the car 12 within the communicable range of the wireless terminal 53, the maintenance tool 20.
By bringing in, while operating various switches of the maintenance tool 20, the control panel 13 can be remotely operated by wireless communication to perform maintenance work.

Further, the maintenance tool 20 is connected to the control panel 13 via any of the wireless terminals 51, 52 and 53.
By connecting the personal computer 30 to the maintenance tool 20 in a state where the personal computer 3 is connected to the maintenance tool 20, the trace data of the control signal in the control panel 13 in the hoistway 11 is transmitted to the personal computer 3.
0 and display it on the screen, or operate the personal computer 30 to set the control parameters of the control panel 13.

As described above, according to the fourth embodiment, the maintenance tool 20 is provided with the wireless function, and the hoistway 1
The configuration is such that it is wirelessly connected to the control panel 13 in 1 to operate remotely, so that the maintenance tool 20 can be used to control the hoistway 11 anywhere within the wireless communication range of the wireless terminal. It is possible to perform the same maintenance as directly operating the panel 13, and it is possible to solve the problem of the installation space at the landing.

Further, the maintenance tool 20 is the hoistway 1.
If the personal computer 30 is connected to the maintenance tool 20 while it is wirelessly connected to the control panel 13 in 1, the personal computer 30 and the control panel 13 can also wirelessly communicate with each other to retrieve trace data and control parameters. It is possible to improve convenience in maintenance work such as setting.

Further, by installing a switch box 54 containing the minimum necessary switches such as a power cutoff switch at the top floor landing, etc., even if the wireless communication state is unstable, the power is cut off by the switch operation. It can be performed.

In the fourth embodiment, the wireless terminals are installed at the landing on each floor, the pit 11a in the hoistway 11 and the car 12, respectively, but at least one wireless terminal is installed. Then, the maintenance tool 20 may be used to perform wireless maintenance work.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described.

FIG. 6 is a view showing the arrangement of an elevator maintenance system according to the fifth embodiment of the present invention.
A machine roomless elevator in which a control panel 13 is installed in the hoistway 11 of the car 12 is shown.

The fifth embodiment is characterized in that the mobile phone 60 is used in place of the maintenance tool 20 to perform maintenance work. The mobile phone 60 is equipped with application software dedicated to elevator maintenance. As a system configuration, a connector box 61 is installed at a landing on each floor, and a mobile phone connection connector 62 is pulled out from the connector box 61 to connect to the mobile phone 60. The connector box 61 is installed on the back side of the operation panels 6 and 44 provided with the hall buttons 5 and 43 at the landing on each floor, and has a cover 61a that can be opened and closed like the connector box 14 shown in FIG.

Similar connector boxes 63 and 65 are also installed on the pit 11a in the hoistway 11 and on the car 12, and the connector box 63 is installed in the pit 11a.
Pull out the mobile phone connector 64 from the mobile phone 6
0, and on the car 12 connector box 65
Pull out the mobile phone connector 65 from the mobile phone 6
It is connected to 0.

Although not particularly shown, the mobile phone connection connectors 62, 64, 66 in the connector boxes 61, 63, 65 are respectively connected to the control panel 1 via cables.
Connected to 3.

In such a structure, when performing maintenance work, for example, in the case of the top floor landing, the operation panel 6 of the hall button 5 provided at the top floor landing is removed, and the connector box 61 in the hall box 5 is removed. The cover 61a is opened, and the mobile phone connector 62 connected to the control panel 13 is pulled out. Then, the mobile phone 60 is connected to the mobile phone connection connector 62,
The application software dedicated to elevator maintenance prepared in advance is started, and various buttons are operated while observing the screen of the mobile phone 60 to perform elevator maintenance work. Moreover, the trace data of the control signal in the control panel 13 is taken out and displayed on the screen of the mobile phone 60, and the parameter setting of the control panel 13 is performed.

The same applies to the landings other than the top floor, the pits 11a in the hoistway 11 and the car 12, and maintenance work can be performed by connecting the mobile phone 60 to the connector at that location. .

As described above, according to the fifth embodiment, it is possible to perform maintenance using a familiar mobile terminal device such as the mobile phone 60. Also in this case, the same maintenance as that of directly operating the control panel 13 in the hoistway 11 can be performed at the landing without being restricted by the installation space at the landing.

In the fifth embodiment, the connector boxes are installed on the landing of each floor, the pit 11a in the hoistway 11 and the car 12, respectively, but the connector boxes are installed at at least one place. Then, the mobile phone 60 may be used for maintenance work.

Further, the use of the maintenance-dedicated application software installed in the mobile phone 60 may be made available only to a person who is authorized in advance based on the ID and password. Maintenance work by persons can be prohibited.

In the fifth embodiment, the mobile phone 60 is used instead of the maintenance tool 20, but maintenance-specific application software is installed in another mobile terminal device such as a PDA (Personal Digital Assistant). You can also use it.

(Sixth Embodiment) Next, a sixth embodiment of the present invention will be described.

FIG. 7 is a view showing the arrangement of an elevator maintenance system according to the sixth embodiment of the present invention.
A machine roomless elevator in which a control panel 13 is installed in the hoistway 11 of the car 12 is shown.

In the sixth embodiment, the mobile phone 60 is used in place of the maintenance tool 20, and the mobile phone 60 is provided with a short-range wireless communication function such as Bluetooth so that the control panel 13 in the hoistway 11 can be wirelessly connected. It is characterized by connecting by. The mobile phone 60 is equipped with application software dedicated to elevator maintenance. As a system configuration, a wireless terminal 71 for realizing a wireless interface between the control panel 13 and the mobile phone 60 is installed at the landing on each floor. Similar wireless terminals 72 and 73 are also installed on the pit 11a in the hoistway 11 and on the car 12, respectively. These wireless terminals 71 to 73 are respectively connected to the control panel 13 in the hoistway 11.

In such a configuration, if the wireless terminals 71 to 73 are within the communicable range, the mobile phone 6
The hoistway 11 using the short-range wireless communication function provided in
The control panel 13 in the inside is wirelessly connected, and the maintenance work is performed by wireless communication while operating various buttons of the mobile phone 60. Moreover, the trace data of the control signal in the control panel 13 is taken out and displayed on the screen of the mobile phone 60, and the parameter setting of the control panel 13 is performed.

As described above, according to the sixth embodiment, it is possible to perform maintenance using a familiar mobile terminal device such as the mobile phone 60. Also in this case, the same maintenance as that of directly operating the control panel 13 in the hoistway 11 can be performed at the landing without being restricted by the installation space at the landing. Further, the elevator can be maintained anywhere within the communicable range of the wireless terminal.

In the sixth embodiment, the wireless terminals are installed at the landing on each floor, the pit 11a in the hoistway 11 and the car 12, respectively, but at least one wireless terminal is installed. Then, the mobile phone 60 may be used to perform wireless maintenance work.

In the sixth embodiment, the mobile phone 60 is used instead of the maintenance tool 20, but maintenance-specific application software is installed in another mobile terminal device such as a PDA (Personal Digital Assistant). You can also use it.

[0065]

As described above, according to the present invention, when performing maintenance on an elevator having a control panel installed in the hoistway of a car, a maintenance device is installed in a connector box installed in a specific place. Connect it to the connector,
Alternatively, by wirelessly connecting to a wireless terminal installed at a specific location, the maintenance device remotely operates the control panel in the hoistway to perform maintenance. It is possible to perform the same maintenance as directly operating the control panel in the hoistway without being restricted by the installation space.

Also, instead of the maintenance device, the same maintenance can be performed using a mobile terminal device such as a mobile phone.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an elevator maintenance system according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram when performing maintenance work in an elevator hall (landing).

FIG. 3 is a diagram showing a configuration of an elevator maintenance system according to a second embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of an elevator maintenance system according to a third embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of an elevator maintenance system according to a fourth embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of an elevator maintenance system according to a fifth embodiment of the present invention.

FIG. 7 is a diagram showing a configuration of an elevator maintenance system according to a sixth embodiment of the present invention.

[Explanation of symbols]

1 ... Platform 2 ... Maintenance staff 3 ... Holdor 4 ... Three-sided frame 5 ... hole button 6 ... Operation panel 11 ... Hoistway 12 ... Car basket 13 ... Control panel 14 ... Connector box 15 ... Maintenance tool connector 16 ... Power cutoff switch 17 ... Control console connector 20 ... Maintenance tool

Claims (8)

[Claims] 1. An elevator maintenance system in which a control panel is installed in a hoistway of a car, and a portable maintenance device having functions required for maintenance, and a maintenance device installed at a specific place and connected to the control panel. And a connector box accommodating the connected connector, the maintenance device is connected to the connector in the connector box, and the control panel is remotely operated from the maintenance device at the specific place to perform maintenance. Elevator maintenance system characterized by 2. The elevator maintenance system according to claim 1, wherein the connector box is installed in at least one of a landing on each floor, a pit in the hoistway, and the car. . 3. The maintenance device has an interface function for connecting a terminal device, transfers trace data of a control signal in the control panel to the terminal device and displays the trace data on the screen, and The elevator maintenance system according to claim 1, wherein the input parameter value is transferred to the control panel. 4. A specific mobile terminal device equipped with application software for maintenance is provided, the mobile terminal device is connected to the connector in the connector box, and the control is performed from the mobile terminal device at the specific place. The elevator maintenance system according to claim 1, wherein maintenance is performed by remotely operating the panel. 5. An elevator maintenance system in which a control panel is installed in a hoistway of a car, and a portable maintenance device having a function necessary for maintenance and a wireless communication function, and a maintenance device installed at a specific place. A wireless terminal connected to the control panel, the maintenance device is wirelessly connected to the wireless terminal, and the maintenance device is remotely operated from the maintenance device at the specific location to perform maintenance. Elevator maintenance system characterized by 6. The wireless terminal is a platform on each floor,
6. The pit in the hoistway and at least one place on the car are installed in at least one place.
Elevator maintenance system described. 7. The maintenance device has an interface function for connecting a terminal device, transfers trace data of a control signal in the control panel to the terminal device and displays the trace data on the screen, and The elevator maintenance system according to claim 5, wherein the input parameter value is transferred to the control panel. 8. A specific mobile terminal device equipped with application software for maintenance and a wireless communication function is provided, the mobile terminal device is wirelessly connected to the wireless terminal, and the mobile terminal device is connected to the wireless terminal at the specific location. 8. The elevator maintenance system according to claim 7, wherein maintenance is performed by operating the control panel remotely.