KR102034094B1 - Apparatus and method thereof for registrating lighting at a display unit of lighting controlling system - Google Patents

Abstract

The embodiment relates to controlling a lighting device by using a screen by registering the lighting device on each screen of the display unit of the lighting control device one-to-one.
Display unit Each screen includes a switch unit (on / off) and / or dimming switch and is registered in a one-to-one correspondence with each lighting device. Press to move to another screen and register.
Therefore, the lighting device control can be easily performed while viewing the screen of the display unit.

Description

A device and method for registering a lighting device on a display unit of a lighting control device {APPARATUS AND METHOD THEREOF FOR REGISTRATING LIGHTING AT A DISPLAY UNIT OF LIGHTING CONTROLLING SYSTEM}

Embodiments relate to registering a lighting device with a lighting control device.

In general lighting control, the power switch and the lighting device are wired one-to-one, so that the lighting device can be controlled by knowing the desired light switch.

On the other hand, as disclosed in the publication No. 10-2008-0067556, the control of the lighting device based on a wireless system is a trend these days.

On the other hand, users are accustomed to controlling a lighting device by matching one-to-one, whether wireless or wired.

When controlling lighting through a mobile phone, a remote control, or other device that is not a switch, it is necessary to register the lighting device with a button on the UI (user interface) of the device or another control controller. If the method of registering and controlling the lighting in a mobile device is complicated and difficult, the simpler the registration and control of the lighting is, the better the technology is neglected by users.

The embodiment proposes the convenience of easily registering and using the lighting device with the lighting control device.

The embodiment proposes a simple and simple registration and control of a lighting device in a lighting control device with a display.

The embodiment registers a lighting device to be controlled to be matched one-to-one on one screen of the lighting control device display unit, thereby providing convenience of registration and use.

The embodiment provides a convenience of registration and use by grouping a plurality of lighting devices to be controlled on one screen of the lighting control device display unit and registering them to be matched one-to-one.

In the embodiment, each screen of the display unit includes a switch unit (on / off) and / or dimming switch, and is registered in one-to-one correspondence with each lighting device, and when a different lighting device is registered, a predetermined time Suggest to move to another screen while tapping the current screen.

In the embodiment, the movement to the other screen is performed based on an automatic movement or a manual movement method when a predetermined time is pressed.

In an embodiment, of the received signals received from the lighting device in response to the registration mode request transmission signal of the lighting control device, 1) of a predetermined valid magnitude signal (e.g. 5 dB), 2) the received signal strength (RSSI) is the highest. It is proposed to register a large lighting device with the wireless switch.

An apparatus for registering a lighting apparatus on a display unit of a lighting control apparatus according to an embodiment includes: a display unit including an input unit for inputting a user command to register a lighting apparatus; A communication unit for transmitting a registration request signal; A storage unit for storing predetermined received signal strength (RSSI) information on the received signal received from the lighting apparatus; And a controller configured to control a registration operation when the received signal strength received from the lighting device is compared with the pre-stored received signal strength information to control a registration operation when the received signal strength is greater than or equal to the predetermined received signal strength. An ID for a designated lighting device is assigned to the display unit based on any one of the user's control and selection among the lighting devices.

In an embodiment, the ID of the lighting device registered in the display unit includes at least one of "Living room", "Bed room", and "Kitchen" which are intended for use of the lighting device.

In an embodiment, the ID given to each lighting apparatus is registered on each display screen of the lighting control apparatus.

In the embodiment, the movement to another screen for registration with another lighting device is performed by controlling the display screen for a predetermined time.

In an embodiment, an ID of a lighting device which responds to a predetermined key of the display unit by controlling the predetermined key for a predetermined time is assigned to the display unit.

In an embodiment, two or more lighting devices are selected, a group ID is assigned, and registered in the display unit.

According to the embodiment, when a lighting device is to be registered as a group ID, the display unit screen for group registration is moved, an already registered lighting device is output, and a plurality of lighting devices to be registered are selected and a group ID is assigned.

According to the embodiment, in order to register the lighting device as a group ID, the display unit of the lighting control device is performed on a predetermined screen among a plurality of screens, and the movement to the predetermined screen is performed by selecting a shortcut menu, selecting a group mode, and sequentially displaying screens. Among the moving and outputting the entire display unit and selecting the display unit screen to be registered, the display unit screen is moved to the display unit screen for group ID registration based on one operation.

In an embodiment, a selection operation for registering a lighting device as a group ID is performed on the last display screen of the display unit configured in the lighting control device.

In the embodiment, the received received signal strength is greater than the predetermined received signal strength, and the ID is assigned to the lighting apparatus that transmitted the largest received signal and registered in the lighting control apparatus.

According to an embodiment, a method of registering a lighting device on a display unit of a lighting control device includes transmitting a registration request signal from a lighting control device to a lighting device; Comparing the received signal strength received from the lighting apparatus with a previously stored received signal strength (RSSI); And as a result of the comparison, assigning an ID to a lighting device that transmits the largest signal among RSSIs having a predetermined size or more and registering the ID in a display unit of the lighting control device. It is operated including.

In an embodiment, a plurality of registered lighting devices are selected; And

And grouping IDs of the plurality of lighting devices according to the selection and registering the group IDs with the display unit of the lighting control device.

According to an embodiment, when a user selects a plurality of lighting apparatuses and registers the lighting apparatuses with a group ID, moving to a display unit screen for registering a group; Outputting a lighting device that is already assigned with each ID; Selecting a plurality of lighting apparatuses to be registered; Granting a group ID for the selected lighting devices; And a step of registering.

Each lighting device can be registered and matched one-to-one on each display screen of the lighting control device, so that the control can be easily and conveniently.

The embodiment may provide convenience for use by grouping and registering a plurality of lighting devices to be controlled on one screen of the lighting control device display unit.

1 is a block diagram showing a lighting system according to an embodiment
Figure 2a / 2b is a block diagram showing the configuration of the lighting control device and lighting device constituting the lighting system
3 is a diagram illustrating a process of registering a lighting device to a wireless switch among lighting control devices;
4 is a diagram illustrating the registration of a lighting device on a display unit screen of the terminal when the RSSI is larger than a predetermined size based on a transmission / reception operation between the lighting control device (terminal) and the lighting device.
5 and 6 are views illustrating an example of registering an ID (Living) of a lighting device on a display screen of a terminal according to one embodiment.
7 is a view to check whether the operation properly after registration
8 is a diagram illustrating registering a new lighting device on another screen of the display unit;
FIG. 9 is a diagram illustrating registration of respective IDs registered on a screen of each display unit as an ID of Group 1 FIG.
10 is a diagram illustrating a case in which IDs for lighting apparatuses are registered as a group.
FIG. 11 is a diagram corresponding to FIG. 8 and illustrating additional registration of a group. FIG.
12 is a flowchart illustrating registering a lighting device according to an embodiment of the present invention on a display unit screen of a lighting control device;
14 is a flowchart illustrating registering a lighting device according to an embodiment of the present invention on a display unit screen of the lighting control device;

Hereinafter, with reference to the accompanying drawings will be described an apparatus and method for registering a lighting device on the display unit screen of the lighting control apparatus according to an embodiment of the present invention.

First, terms used in the embodiments of the present invention are selected as general terms widely used as possible at present, but in certain cases, the term is arbitrarily selected by the applicant, which describes the operation and meaning in detail in the corresponding embodiments. As such, the present embodiment should be understood as an operation / meaning of a term rather than a simple term name.

In the description of the embodiment, the lighting device is a device including an LED, general lighting equipment, or other lighting equipment, fluorescent lamps, incandescent lamps, downlights, halogen lamps.

In addition, in the description of the embodiment, the wireless means has been described as an example of the input and control means of the user command, but is not limited thereto. Thus, other input means capable of wireless transmission will be possible, and can also be wired. In addition, the user's command may be input by pressing a specific key or controlling a touch on the display unit screen. In other words, entering a user command includes all cases, whether through a device or a specific key.

In addition, in the description of the embodiment, the connection, connection or contact between each component is not only connected directly, but also mechanical connection, electrical connection or connection through other components, other media or other elements in the middle. Includes / wireless connection.

1 is a block diagram showing a general lighting system according to an embodiment.

Referring to FIG. 1, a lighting apparatus including a control device 101 including an input means for inputting a user command based on a wireless control method or a wired method, an illumination unit (LED, another lighting device, etc.) and a signal receiving means. In (111), the lighting device may receive a user control command from the control device by wireless / wired.

On the other hand, the control of the lighting device 111, can be directly controlled by a separate wire rather than the wireless as described above.

That is, as shown in Figure 1, the main device 121 for directly controlling the lighting device is configured, the main device is configured with a power switch 122 for controlling the ON / OFF of the lighting device. The power switch is wired to the lighting device, and is generally a switch attached to a wall.

Therefore, when the control device 101 is broken or lost, the lighting device may be controlled by inputting a user command using the power switch 122.

In FIG. 1, various wireless (RF) communication methods, for example, Zigbee, WiFi, and BLUETOOTH, may operate based on a wireless method selected by a user.

Figure 2a / 2b is a block diagram showing the configuration of the lighting control device and the lighting device constituting the lighting system.

As shown in Fig. 2A, the lighting control device 201 includes the following configurations.

A display unit 207 including a power supply unit 203, input means 206 configured to input a user's command for registering a lighting device, or a touchable means, and the like. A storage unit 204 for storing predetermined received signal strength (RSSI) information about identification information and / or a response signal received from the lighting device, and a communication unit 205 for transmitting the reception and registration request signal of the response signal. And a control unit 206 for comparing the received response (receive) signal strength with the pre-stored received signal strength information and controlling a registration operation when the response (receive) signal equal to or greater than the predetermined received signal strength is included. It works.

In the lighting control device configured as described above, among the response signal strength received from the lighting device is greater than a predetermined reception signal strength, the lighting device that transmits the largest received signal is registered in the lighting control device or selected by the user. According to the present invention, a plurality of lighting devices having a received signal strength greater than a predetermined intensity can be registered.

2A will be described in detail.

As shown in FIG. 2A, a display unit 207 including an input means 206 for inputting a user command for registering a lighting device is configured.

The input means includes all means that can be controlled by the user, such as all keys, symbols, etc. which can be configured on the display unit or output on the display unit screen.

An ID for the designated lighting device is assigned to the display unit based on any one of control (direct input, etc.) and selection among the lighting devices having the predetermined reception signal strength or more.

The ID for the lighting device registered in the display unit 207 includes at least one of "Living room", "Bed room", and "Kitchen" which are uses of the lighting device.

In addition, IDs assigned to respective lighting devices are registered one-to-one on each display screen of the lighting control device.

In order to register the ID of each lighting device to each display screen one-to-one, move to another screen by pressing the screen for a predetermined time and then moving to the other display screen through control in the left / right direction. Move.

In an embodiment, the predetermined key of the display unit is pressed for a predetermined time, and an ID of a lighting device corresponding to the display unit is assigned and registered in the display unit.

According to the embodiment, when the user selects two or more lighting devices, registration can also be performed in group units. In this case, a group ID is assigned and registered in the display unit.

In one embodiment, when a lighting device is to be registered as a group ID, the display unit screen for group registration is moved to output a lighting device that is already registered in one unit, and a plurality of lighting devices to be registered are selected. Register by giving a group ID.

In the embodiment, in order to register the lighting device as a group ID, the lighting device is performed on a predetermined screen among a plurality of screens that can be output to the display unit of the lighting control device, and the movement to the predetermined screen is performed by selecting a shortcut menu or selecting a group mode from a menu. It can be moved through.

On the other hand, by moving the screens one by one, that is, sequentially moving to the last screen by moving the screens, or by moving the last screen by outputting the entire screen registered on the display unit and selecting the display unit to be registered, the group ID is registered. can do.

In an embodiment, a selection operation for registering a lighting device as a group ID on the last display screen of the display unit configured in the lighting control device is performed.

The above embodiment is an example and may be set based on a user such as a predetermined screen, for example, an intermediate screen, rather than the last screen.

As shown in FIG. 2B, the lighting apparatus 211 includes the following configuration.

A communication unit 215 for receiving a registration request signal from the power supply unit 213 and the lighting control device 210 and outputting a response signal in response thereto; A memory unit 214 storing identification information of the lighting control device; Based on the selection operation by the user, it is determined whether at least one device of the output unit 216 and the lighting control device and the lighting device, which are displayed based on one or more means among predetermined color, blinking and sound, is already registered by the selected lighting device. And a controller 217 for controlling whether to respond to the registration request signal.

In the state in which the registration screen of the display unit of the lighting control device is displayed, when the registration request signal is sent to the lighting device, the lighting device responds, and the registration is performed by checking whether the lighting to be registered is corrected by turning the lighting device off and on. Basically, even if the lighting device is enlarged, it is in a communication waiting state and is ready to be registered.

The lighting control device may be a wireless control device such as a mobile phone, a remote control, or a wireless switch using a communication method such as Zigbee, Blutooth, or Wifi, and a wired control device using a communication method such as Dail, DMX512, or PLC. Lighting includes all lighting equipment such as LED, fluorescent, incandescent and halogen lamps.

FIG. 3 is a view illustrating a process of registering a lighting device to a wireless switch among lighting control apparatuses. Although FIG. 3 is somewhat different from registering each lighting apparatus on each screen of the display unit of the lighting control apparatus, which is a main embodiment of the present invention, FIG. I will describe it as related information.

As shown in FIG. 3, the wireless switch 301 and the lighting devices 302, 303, and 304 are operated in one-to-one correspondence.

That is, the wireless switch and the lighting device do not operate in the registration mode when there is a registered lighting device and the wireless switch.

Since the wireless switch does not have a screen for the user to select a light, it registers the lighting device with the strongest signal with the strength of the signal generated during communication between the lighting device and the lighting control device.

However, in order to prevent incorrect registration, do not register below a certain signal strength value.

In the wireless switch which is a lighting control device, a registration mode button is provided or set to operate in a registration mode only for a predetermined time when the switch is ON, for example, 1 second only when registration is not performed instead of the registration mode button.

The lighting device operates in registration mode only if it is not registered. In lighting registration mode

The wireless switch sends a signal informing the lighting registration mode to the lighting device, and the lighting device sends a response message thereto.

Through the received messages, the control unit 202 of the wireless switch determines the lighting device having the largest signal strength, and registers itself to the lighting device when the signal strength is greater than or equal to a predetermined signal strength, that is, more than a predetermined signal strength (5 dB). After confirming that the lighting device is registered, it exits from the registration mode. When the record registered in the wireless switch is deleted, after confirming that the record registered in the lighting apparatus is deleted, the registration record of the wireless switch is deleted.

The wireless switch has a button to erase the registered record.

In the above operation, it is determined whether the received signal strength (RSSI) received from the lighting device is the strongest and which communication received signal is below the reference value. When the lighting device is registered in the wireless switch, the lighting device is registered in the control device such as a remote controller, and the lighting device is registered in the control device such as a mobile phone, the control unit may be determined based on each controller.

When receiving a response signal to the registration request signal from the control device to the lighting device can be determined by measuring the signal strength.

ex) Select the largest value among Illumination 1 RSSI, Illumination 2 RSSI, Illumination 3 RSSI.

In addition, the wireless switch or the remote control can determine the light intensity from the MCU (microprocessor) and the running program, and in the case of the mobile phone can be determined based on the mobile phone main processor and the running lighting application.

In the above description, when deleting the record registered in the wireless switch, after confirming that the registered record of the lighting device is deleted, it means that the registration record of the wireless switch is deleted. It is stored in each of them, and the lighting device also stores which control device registers itself. Therefore, even when erasing, it means that the user deletes his / her record after confirming through the communication whether the wireless device or the mobile phone or the remote control device deletes the registration information.

On the other hand, according to another embodiment is a view showing a process of registering the lighting device to the terminal of the lighting control device.

Terminals and lighting devices 302, 303 and 304, which are lighting control devices, are matched one-to-one, respectively.

The lighting control device has a registration mode button. In the lighting registration mode, the lighting device sends a reply message (REPONSE). The lighting control device extracts the communication signal strength (RSSI) from the response message and displays the lighting device having the most effective signal strength and the strongest communication strength on the screen unless the device is registered. The user selects a lighting device to register through an on / off operation of the lighting device.

FIG. 4 is a diagram for registering a lighting device on a display unit screen of the terminal when the RSSI is larger than a predetermined size based on a transmission / reception operation between the lighting control device (terminal) and the lighting device.

As shown in FIG. 4, the display unit screen 240 of the terminal includes an ON / OFF switch 241 and a control means 242 for dimming control as a user command input means.

The basic contents of this embodiment are as follows.

Registration of the lighting device, for example, only the illumination showing the RSSI value of 5db or more, and only one switch on one display unit screen to be placed. Put a registration button to register if you press more than a predetermined time, for example 3 seconds. The lighting devices are classified by giving a name according to the purpose or purpose of each lighting device.

Lighting is controlled by the ON / OFF and Dimming switches. Moving to another screen of the display unit of the lighting control device causes a new screen to be generated when the screen is moved to the side by pressing a predetermined portion of the currently output screen for a predetermined time, for example, 3 seconds or more.

In one embodiment, group registration for registering two or more lighting devices on one screen is arranged on the last screen, and all registered individual lighting devices are outputted, and the lighting is selected to set a group. Therefore, the set lighting devices to control the group on the group screen.

5 and 6 illustrate an example of registering an ID (Living) of a lighting device on a screen of a display unit of a terminal 201 as an embodiment.

As shown in FIG. 5, when the lighting device is pressed for a predetermined time in order to register the lighting device on the display screen of the terminal, the lighting device 211a that is turned on is turned on. After the predetermined time has elapsed, it operates according to the predetermined method (yellow button blinks) (201e). On the other hand, the lighting device is in a dimming state. (211b).

Thereafter, the predetermined key is operated in a preset state (yellow button is blue) (201f), and the lighting apparatus is turned off 211c.

For reference, the lighting device to be registered is set to the case where it is installed in the house 219, the use or purpose of use is LIVING ROOM (219 a) or Bed ROOM (219b). In this embodiment, the LIVING ROOM 219 a or Bed ROOM 219 b is each ID to be registered.

Based on the operation of FIG. 5 as described above, when the communication between the terminal and the lighting apparatus is equal to or greater than a predetermined RSSI or when it is determined to be controllable, a registration procedure is performed on the display unit screen as shown in FIG.

As shown in Fig. 6, the ID (Living) 219a of the lighting apparatus is registered on the window 201g by using the input key.

7 is a view to check whether the operation properly after registration.

As shown in FIG. 7, the lighting device registered with the ID of living room 201g on the display window is switched from off 201h to on 201j to check whether the lighting device 211 is controlled. see.

8 is a diagram illustrating registering a new lighting device on another screen of the display unit.

As shown in Fig. 8, the switch area 201p of the terminal screen is pressed or touched for a predetermined time, for example, 3 seconds. At this time, if the screen starts to vibrate, it is passed to the next screen (window) 201q, and the registration of a new screen may be registered as shown in FIGS. 5, 6 and 7. Therefore, ID will be registered BED ROOM. (219b).

FIG. 9 is a diagram illustrating registering IDs 201g, 201t, and 201v registered on screens of the display unit as IDs 201w of Group 1. Referring to FIG.

As shown in the figure, the last screen is used as a screen for registering the ID of the lighting apparatus as a group. Therefore, when each registration screen is moved, the screen registered / to be registered as a group will appear last.

However, the above description is an embodiment, and an intermediate screen or another screen may be used as a screen for group registration.

10 is a diagram illustrating a case in which IDs for lighting apparatuses are registered as a group.

As shown in Fig. 10A, when the ID for each lighting apparatus is registered based on Figs. 5, 6, 7, and 8, it is set to automatically register on the group screen 201y1.

As shown in FIG. 10B, when the ID for each lighting device is registered based on FIGS. 5, 6, 7, and 8, after outputting the entire registered ID (201y2), the ID for the lighting device selected by the user. Only 201y21, 201y22 are registered as a group.

FIG. 11 is a diagram corresponding to FIG. 8 and illustrating additional registration of a group.

As shown in Fig. 11, IDs 201W1 and 201W2 for the lighting apparatus are registered in the already registered group 1 201w.

In this case, when the user wants to register an ID for the lighting device as a new group 201X, by touching the switch area of the screen 201Z of the terminal for a predetermined time, for example, for 3 seconds, if the screen starts to vibrate Passes the window to the next window.

12 is a flowchart illustrating registering a lighting device according to an embodiment of the present invention on a display unit screen of the lighting control device.

As shown in FIG. 12, the lighting device registration mode is selected and a registration request signal is transmitted from the lighting control device to the lighting device. (S 1201, S 1203).

The received response signal strength is compared with a previously stored received signal strength (RSSI).

As a result of the comparison, the ID of the lighting device that transmits the largest signal of the RSSI of a predetermined size or more is registered one-to-one on the screen of the display unit of the lighting control device.

Alternatively, the IDs of the plurality of lighting devices are registered as a group. (S 1205, S 1207)

In detail, the registration request signal is transmitted from the lighting control device to the lighting device, and the received signal strength received from the lighting device is compared with a previously stored received signal strength (RSSI). As a result of the comparison, an ID is assigned to a lighting device that transmits the largest signal among RSSIs having a predetermined size or more, and is registered in the display unit of the lighting control device as shown in FIGS. 5, 6, and 7.

In addition, as shown in FIG. 10B, a plurality of registered lighting apparatuses may be selected, and group IDs of the plurality of lighting apparatuses may be assigned to be registered in the display unit of the lighting control apparatus according to the selection.

In addition, as shown in FIG. 9, when the user selects a plurality of lighting apparatuses and registers the lighting apparatuses with the group ID, the user moves to the display unit screen for group registration; Each of the IDs is already assigned and the registered lighting device is outputted, so that a plurality of lighting devices to be registered are selected. Thereafter, group IDs for the selected lighting devices are assigned.

Also, as shown in FIG. 10A, when an ID for a lighting device is assigned and registered, the registered lighting devices are automatically grouped to be registered in the display unit of the lighting control device.

Registration of the lighting device in the lighting control device as described above is applicable to other control devices other than the control device.

In addition, the technical idea of the present embodiment is not limited to the above-described embodiment and the accompanying drawings, it is interpreted by the appended claims.

Therefore, it will be apparent to those skilled in the art that various forms of substitution, modification, and alteration are possible without departing from the technical spirit of the present invention described in the claims, and the appended claims. Will belong to the technical spirit described in.

101: lighting control device, 111: lighting device

Claims (14)

A display unit for displaying an illumination registration screen and including input means for inputting a user command to register an illumination device on the illumination registration screen;
A communication unit which transmits a registration request signal to at least one lighting device installed around and receives a response signal corresponding to the registration request signal;
A storage unit for storing reference received signal strength (RSSI) information for the response signal; And
Comparing the received signal strength of the response signal received through the communication unit with the reference received signal strength stored in the storage unit, and controlling the registration operation of the lighting apparatus that has transmitted the response signal having the received signal strength equal to or greater than the reference received signal strength; It includes a control unit,
The control unit,
The display unit is assigned an ID of a lighting device specified by any one of the lighting device having the largest received signal strength and the lighting device selected by the user among the lighting devices that transmit the response signal having the received signal strength equal to or greater than the reference received signal strength. Enroll in
By transmitting a signal informing the registration to the registered lighting device to store the information of the control device registering itself in the lighting device,
When the registration of the previously registered lighting device is deleted, the signal for notifying registration deletion is transmitted to the lighting device.
And an ID of the lighting device is deleted when a signal indicating completion of deletion of information of the control device stored in the lighting device is received. The apparatus of claim 1, wherein the ID of the lighting apparatus registered in the display unit includes a use purpose corresponding to an installation position of the lighting apparatus. The method of claim 1 or 2, wherein the control unit,
When there are a plurality of response signals having a received signal strength greater than the reference received signal strength, the display unit of the lighting control device registers a lighting device that transmits the response signal having the largest received signal strength among the plurality of response signals. Device to register the device. The method of claim 1, wherein the response signal,
And registering a lighting device on a display unit of a lighting control device which is transmitted from an unregistered lighting device which does not store the information of the control device among the lighting devices that receive the registration request signal. The apparatus of claim 1, wherein the controller controls the predetermined key of the display unit for a predetermined time and gives an ID to the lighting apparatus corresponding to the display unit. The at least two lighting apparatuses of claim 1, wherein the controller is further configured to include at least two lighting apparatuses when at least two lighting apparatuses are selected from among a plurality of lighting apparatuses that transmit response signals having a received signal strength equal to or greater than the reference received signal strength. Registering the lighting device to the display unit of the light control device, characterized in that the group ID of the registration to the display unit. The display apparatus of claim 6, wherein the controller moves to the display unit screen for registering the group ID when the at least two lighting devices are registered as a group ID, and outputs the already registered lighting device. Apparatus for registering a lighting device to the display unit of the lighting control device, characterized in that to give a group ID of at least two lighting devices. delete delete delete delete delete delete delete

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