KR102157446B1 - Pairing method for wireless lan connection of smart home system - Google Patents

Abstract

According to an embodiment of the present invention, it is possible to automate the pairing between devices by simplifying the manual pairing operation of a worker between a sensor and a device control terminal. To this end, especially, according to an embodiment of the present invention, provided is a paring method for wireless local area network (LAN) connection of a smart home system comprising home appliances installed in each household′s house, a sensor unit which senses at least one of the concentration of fine dust in the house, the concentration of carbon dioxide, the temperature, and the illuminance, and a device control terminal which receives sensing information from the sensor unit through a wireless device and controls the home appliances based on the sensing information. The paring method comprises: a step of turning on a pairing unit of the device control terminal (S100); a step of generating an access point (AP) by the pairing unit (S110); a first approval step (S120) in which the sensor unit accesses the AP based on preset initial service set identifier (SSID) information, requests for approval, and receives the approval; a step of transmitting changed SSID information to the sensor unit upon receiving the request for approval of the sensor unit based on the initial SSID information set by the pairing unit (S130); a step of storing the changed SSID information in a flash memory by the sensor unit (S140); and a second approval step in which the sensor unit accesses the AP based on the changed SSID information, requests for approval, and receives the approval (S150).

Description

Pairing method for wireless LAN connection of smart home system {PAIRING METHOD FOR WIRELESS LAN CONNECTION OF SMART HOME SYSTEM}

The present invention relates to a pairing method for a wireless LAN connection of a smart home system, and more particularly, simplifies the pairing operation between a sensor and a control terminal in a smart home environment in which a number of identical wireless devices such as apartment houses must be installed or operated. It relates to a pairing method for wireless LAN connection of a smart home system that can minimize network interference.

Recently, home automation, which automates home appliances and heating and cooling using IoT functions, is increasing in buildings such as apartment houses where multiple households are occupied. In the past, if a sensor and an execution device were executed in a single device in a simple form, now it is possible to expand the sensor and execution device through a hub or a remote server.

A device control terminal is installed in the form of a wall pad or a room controller between the sensor and the executing device, and a home network such as a wireless LAN is established between them. That is, sensors with various functions are attached and the device control terminal receives their sensing information and controls the corresponding device to operate. Therefore, the device control terminal and various sensors can transmit and receive information to and from a local network or a home network. The system is in place.

In the case of constructing an apartment house, the conventional smart home system has been processed in the form of pairing the sensor and the device control terminal by entering a WIFI ID and password into the sensor while a worker carries a work terminal separately for each household. This was a work environment in which the same treatment had to be repeated due to the large number of apartment houses, and thus, there was a problem such as a need for training for workers and a long period of work.

In addition, this input method requires the WIFI ID and password to be provided to the residents of the household who actually move in and use the building, or to intermediate workers who need to perform maintenance work for various reasons during the residence. Even in this case, the WIFI ID and password are required for household residents or intermediate workers, so it is a cumbersome method.

Therefore, in the case of forming a home network with the device control terminal, the need for a study on a pairing method in which the WIFI ID and password can be automatically input and paired with each other is raised.

The present invention was derived based on the necessity as described above, and a first object of the present invention is to simplify the manual pairing work of a worker between a sensor and a device control terminal to provide a wireless LAN connection of a smart home system that can automate the pairing between devices. It is to provide a pairing method for.

A second object of the present invention is a home appliance installed in each household of an apartment house, a sensor unit for sensing at least one of fine dust concentration, carbon dioxide concentration, temperature, and illuminance in the house, and a wireless device for sensing information from the sensor unit. It is to provide a pairing method for wireless LAN connection of a smart home system including a device control terminal that receives and controls home appliances.

A third object of the present invention is to provide a pairing method for wireless LAN connection of a smart home system capable of minimizing mutual interference in a plurality of local network environments at home.

A fourth object of the present invention is a smart home capable of minimizing mutual interference of the same products newly or changed and installed in adjacent households in a network environment of an apartment house in which a plurality of sensors and a plurality of device control terminals are scattered adjacent to each other. It is to provide a pairing method for the system's wireless LAN connection.

An object of the present invention as described above, a sensor unit for sensing at least one of the home appliance installed in the house of each household of the apartment house, the house fine dust concentration, carbon dioxide concentration, temperature, and illumination, and wireless sensing information of the sensor unit A pairing method for wireless LAN connection of a smart home system including a device control terminal for receiving by a device and controlling a home appliance based on sensing information, comprising: turning on a pairing unit of the device control terminal (S100); A step of generating an AP (Access Point) by a pairing unit (S110); A first approval step (S120) in which the sensor unit accesses the AP and requests approval based on preset initial service set identifier (SSID) information; Transmitting the changed SSID information to the sensor unit upon receiving an approval request from the sensor unit based on the initial SSID information set by the pairing unit (S130); Storing the changed SSID information in the flash memory by the sensor (S140); And it may be achieved by providing a pairing method for wireless LAN connection of the smart home system including a second approval step (S150) of the sensor unit accessing the AP based on the changed SSID information and requesting approval to be approved.

The pairing method for wireless LAN connection of the smart home system includes the steps of receiving a reset signal of the pairing unit by the sensor unit after the second approval step (S150) (S200); Deleting the changed SSID information based on the reset signal by the sensor unit (S210); And a step S220 of accessing the AP by the sensor unit based on the initial SSID information.

In addition, step S120 may be a step in which the sensor unit accesses an AP having the largest RSSI value among the plurality of APs, requests approval, and receives approval when multiple APs are detected.

In addition, step S130, the pairing unit transmits the MAC address information of the wireless device as the changed SSID information to the sensor unit (S132) or the pairing unit transmits the MAC address information of the sensor unit transmitted from the sensor unit as changed SSID information to the sensor unit. It may be step S134.

And in step S150, the AP may be generated by the pairing unit based on the changed SSID information.

Meanwhile, the pairing method for wireless LAN connection of the smart home system includes a pairing unit initialization step (S300) of generating an AP based on the initial SSID information by receiving a pairing unit reset signal after the second approval step (S150). , A sensor unit initializing step (S310) of receiving a sensor unit reset signal and requesting access and approval to the AP generated based on the initial SSID information is performed simultaneously or sequentially; Transmitting MAC address information of the wireless device or MAC address information of the sensor unit to the sensor unit as the pairing unit changed SSID information (S320); And a re-approval request step (S330) in which the sensor unit accesses the wireless device or the AP generated based on the MAC address information of the sensor unit and requests approval.

According to an embodiment of the present invention as described above, it is possible to automate the pairing between devices by simplifying the manual pairing operation of the operator between the sensor and the device control terminal.

In addition, mutual interference can be minimized in a number of local network environments in the home, and in the network environment of an apartment house where a number of sensors and control terminals are scattered adjacent to each other, the same products that are newly or changed and installed in adjacent households can be There is an effect that can minimize interference.

1 (a), (b), and (c) are diagrams schematically showing a state in which a pairing method for wireless LAN connection of a smart home system of the present invention is executed,
2 is a flowchart sequentially showing a first embodiment of a pairing method for wireless LAN connection of a smart home system according to the present invention,
3 is a flowchart sequentially showing a second embodiment of a pairing method for wireless LAN connection of a smart home system according to the present invention,
4 is a flowchart sequentially showing a modified example of a second embodiment of a pairing method for wireless LAN connection of a smart home system according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and contents described in the accompanying drawings, but the present invention is not limited or limited by the embodiments.

Various changes may be made to the embodiments described below. The embodiments described below are not intended to be limited to the embodiments, and should be understood to include all changes, equivalents, and substitutes thereto.

The terms used in the examples are used only to describe specific embodiments, and are not intended to limit the embodiments. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

Meanwhile, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms used in the present specification are terms used to properly express an embodiment of the present invention, which may vary depending on the intention of users or operators, or customs in the field to which the present invention belongs. Accordingly, definitions of these terms should be made based on the contents throughout the present specification.

In addition, when it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the embodiment in describing the embodiment, the detailed description thereof will be omitted.

For wireless LAN connection of smart home system Pairing Way

1 (a), (b), (c) is a schematic diagram showing a state in which a pairing method for a wireless LAN connection of the smart home system of the present invention is executed, and FIG. 2 is a wireless LAN connection of the smart home system of the present invention It is a flow chart sequentially showing the first embodiment of the pairing method for. Hereinafter, this embodiment will be described with reference to FIGS. 1 and 2.

A first embodiment of a pairing method for a wireless LAN connection of a smart home system according to the present invention discloses a method of automatically establishing a wireless network of a smart home system including a home appliance, a sensor unit, and a device control terminal. . In this embodiment and the second and third embodiments to be described later, the household appliance may be a ventilation system, a cooling/heating system, or a lighting system, but is not limited thereto, and any electronic device capable of receiving and operating a control command wirelessly Irrelevant.

In addition, the configuration of the sensor unit referred to in this embodiment and the second and third embodiments to be described later refers to a means for measuring the sensing target numerically, only the difference between the sensing target and the short-range wireless It is written in the sense of including a communication module in one configuration. In addition, although it is described that WIFI is used as a short-range wireless communication network that can be used in a home network, it is obvious that a person skilled in the art can replace it with a similar communication method unless it is limited thereto.

In the first embodiment, as shown in Figs. 1 and 2, first, the pairing unit of the device control terminal is turned on (S100). Here, the device control terminal performs a function of performing a control command for controlling the aforementioned home appliance, and may be configured in a form such as a wall pad in which user manipulation and display are possible. In particular, the pairing unit is one of the broader configurations of the device control terminal in relation to the sensor unit, and may include an MCU and firmware. In addition, the pairing unit controls the short-range wireless communication module and the AP and the station for short-range communication.

Next, the pairing unit generates an AP (Access Point) (S110), and then the sensor unit accesses the AP based on the preset initial service set identifier (SSID) information and requests approval, and a first approval step (S120) is performed. Performed. In this regard, as shown in Fig. 1 (a), when the initial SSID information is set to, for example, SENSOR, and when two or more of these APs are detected, the sensor unit compares the RSSI values to access and approve one AP having the largest value. Fulfill the request. As shown in FIG. 1, the second device control terminal having -60 dBm is not selected, but only the first device control terminal having -30 dBm having a larger value is selected by the sensor unit.

Next, upon receiving the request for approval of the sensor unit based on the initial SSID information set by the pairing unit, the changed SSID information is transmitted to the sensor unit (S130). Here, the changed SSID information may be MAC address information (eg, 82:7d:3a:5e:d7:d9) of the first device control terminal as shown in FIG. 1(b).

Finally, the sensor unit stores the changed SSID information in the flash memory (S140), and then the second approval step (S150) in which the sensor unit accesses the AP and requests approval based on the changed SSID information is performed. The first embodiment of a pairing method for connecting to a wireless LAN may be implemented. Basically, as a protocol of the transport layer between the AP and the ST, a Transmission Control Protocol Server (TCP) or a User Datagram Protocol (UDP) may be selectively used, and it is the same that it is selectively used in other embodiments to be described later.

The second embodiment of the pairing method for wireless LAN connection of the smart home system of the present invention is a step of receiving a reset signal of the pairing unit by the sensor unit after the second approval step (S150) as shown in FIG. 3 (S200) Is performed, and then the sensor unit deletes the changed SSID information based on the reset signal (S210), and then the sensor unit accesses the AP based on the initial SSID information (S220) is further performed. do. In this second embodiment, when there is a need for a reset such as non-abnormal operation of devices, for example, a device control terminal or a sensor unit, a pairing button (not shown) is connected to the pairing unit to simplify operation. Can be done with In this embodiment, when the pairing button is pressed, a reset signal may be transmitted to the sensor unit, and the sensor unit may be reset by manipulating one pairing button. To this end, the pairing unit may be configured to have two or more communication channels with the sensor unit, or a separate short-range communication unit may be further formed.

Meanwhile, in the third embodiment of the pairing method for wireless LAN connection of the smart home system of the present invention, as shown in FIG. 4, after the second approval step (S150), the pairing unit receives the pairing unit reset signal to receive initial SSID information. A pairing unit initialization step (S300) of generating an AP based on is performed. Here, the pairing unit reset signal may be generated by touching a pairing button connected to the pairing unit.

Subsequently, a sensor unit initialization step (S310) in which the sensor unit receives a sensor unit reset signal and requests access and approval to the AP generated based on the initial SSID information is performed. Here, the sensor unit reset signal may be generated by touching a sensor unit reset button (not shown) configured in connection with the sensor unit.

Subsequently, the pairing unit transmits the MAC address information of the wireless device or the sensor unit to the sensor unit as changed SSID information (S320), and then the sensor unit accesses the AP based on the MAC address information of the wireless device or sensor unit and requests approval. The third embodiment may be implemented by further performing the re-approval request step (S330). When the MAC address information of the sensor unit is used as the changed SSID information in step S320, the process of acquiring and receiving MAC address information from the sensor unit must be preceded by the pairing unit. If the MAC address information of the sensor unit is used as the changed SSID information, the unique information of the sensor unit is used, so even when the sensor unit is replaced, the convenience of subsequent work can be guaranteed.

In the third embodiment, as in the second embodiment, a pairing method is performed when there is a need for a reset such as a non-abnormal operation of a device control terminal or a sensor unit, but the third embodiment is a device control terminal and a sensor unit, respectively. This is the pairing method when the pairing button of is provided. According to the third embodiment, when all of the pairing buttons are not pressed, that is, all of the pairing buttons are not initialized and only one of them is operated and initialized, the device control terminal and the sensor unit have different SSIDs so that they cannot be paired.

The third embodiment is preferable because it provides a minimum amount of work for an operator to press each pairing button unless the work is difficult, and as a result, the security of the smart home system can be maintained.

It will be appreciated that the technical configuration of the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention by those skilled in the technical field to which the present invention belongs. Therefore, the embodiments described above are illustrative in all respects and should be understood as non-limiting. In addition, the scope of the present invention is indicated by the claims described later rather than the detailed description above. In addition, all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

AP: Access Point
ST: Station

Claims (6)

Home appliances installed in the homes of each apartment house, a sensor unit that senses at least one of fine dust concentration, carbon dioxide concentration, temperature, and illuminance in the house, and sensing information of the sensor unit using a built-in wireless device And in the pairing method for wireless LAN connection of a smart home system comprising a device control terminal for controlling the home appliance based on the sensing information,
Turning on the pairing unit of the device control terminal (S100);
Generating an AP (Access Point) by the pairing unit (S110);
A first approval step (S120) in which the sensor unit accesses the AP based on preset initial service set identifier (SSID) information, requests approval, and receives approval;
Transmitting changed SSID information to the sensor unit when the pairing unit receives an approval request from the sensor unit based on the set initial SSID information (S130);
Storing the changed SSID information in a flash memory by the sensor unit (S140); And
A pairing method for wireless LAN connection of a smart home system comprising a second approval step (S150) in which the sensor unit accesses the AP and requests approval based on the changed SSID information.
According to claim 1, After the second approval step (S150),
Receiving a reset signal of the pairing unit by the sensor unit (S200);
Deleting, by the sensor unit, the changed SSID information based on the reset signal (S210); And
The pairing method for wireless LAN connection of a smart home system further comprising the step of accessing the AP by the sensor unit based on the initial SSID information (S220).
The method of claim 1, wherein step S120,
The pairing method for wireless LAN connection of a smart home system, characterized in that when the sensor unit detects a plurality of the APs, accessing the AP having the largest RSSI value among the plurality of APs and requesting approval.
The method of claim 1, wherein step S130,
Transmitting MAC address information of the wireless device to the sensor unit as the changed SSID information by the pairing unit (S132), or converting the MAC address information of the sensor unit transmitted from the sensor unit to the sensor unit as the changed SSID information Pairing method for wireless LAN connection of a smart home system, characterized in that the step of transmitting to the unit (S134).
The method of claim 4, in step S150,
The AP is a pairing method for wireless LAN connection of a smart home system, characterized in that the pairing unit is generated based on the changed SSID information.
The method of claim 4, after the second approval step (S150),
The pairing unit initialization step (S300) in which the pairing unit receives the pairing unit reset signal and generates an AP based on the initial SSID information, and the sensor unit receives the sensor unit reset signal and accesses the AP generated based on the initial SSID information. And performing the sensor unit initialization step (S310) for requesting approval simultaneously or sequentially.
Transmitting, by the pairing unit, MAC address information of the wireless device or MAC address information of the sensor unit as the changed SSID information to the sensor unit (S320); And
A pairing method for a wireless LAN connection of a smart home system, further comprising a re-approval request step (S330) in which the sensor unit accesses the wireless device or the AP generated based on the MAC address information of the sensor unit and requests approval.

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