KR20070107983A - Remote control system using wireless universal serial bus - Google Patents

Abstract

A remote control system using a wireless USB is provided to operate conveniently remote control targets in response to a control signal inputted from a mobile phone or an external PC(Personal Computer) and ensure free installation and arrangement through connection between the wireless USB home controller and wireless USB hub of each remote control target through a wireless channel. A home server(30) receives a control status signal from a corresponding remote control signal and transmits the control status signal to a terminal(10,20). A many-to-many wireless USB(Universal Serial Bus) hub(32) outputs the control signal and receives the control status signal from a remote control target through a wireless USB method and transmits the control signal and the control status signal to the home server. A wireless USB home controller(40a~40n) operates a remote control target in response to the control signal and transmits the operation completion status to the wireless USB hub as the control status signal.

Description

Remote control system using wireless universal serial bus {REMOTE CONTROL SYSTEM USING WIRELESS UNIVERSAL SERIAL BUS}

1 is a view showing an overall overview of a remote control system using a wireless universal serial bus (USB) according to a preferred embodiment of the present invention;

2 is a block diagram of a home server shown in FIG. 1;

3 is a functional block diagram showing the configuration of a wireless USB hub and a wireless USB home controller built in a remote control target shown in FIG.

4 is a timing chart illustrating a process in which a plurality of remote USB home controllers of a plurality of remote control targets are bound to a wireless USB hub;

FIG. 5 is a flowchart illustrating a procedure of authenticating a wireless USB home controller of a remote control target in the authentication step of the USB host illustrated in FIG. 4.

* Description of the symbols for the main parts of the drawings *

10: first terminal (mobile phone), 12: repeater (base station),

14: CDMA module, 20: second terminal (external PC),

22: Internet (backbone network), 30: home server,

32: Wireless USB Hub, 40, 40a ~ 40n: Wireless USB Home Controller,

50: MPU, 52: USB Host,

54: PCMCIA interface, 56: Internet device,

70: MCU, 72: USB interface,

74: RF module, 80: RF module,

82: MCU.

The present invention relates to a remote control system using a wireless universal serial bus (W-USB), and more particularly, in response to a remote control signal input from a terminal capable of data communication (ie, the Internet). The present invention relates to a remote control system using a wireless universal serial bus for remotely controlling a remote control object (eg, an electronic door lock, a boiler, a lamp, etc.) in which a wireless USB home controller is embedded through a USB hub.

Recently, with the rapid development of semiconductor technology and electronic and communication technology, a high-speed communication network called 'Internet' has been established, and technology for remote control and monitoring of electronic / electrical devices and mechanical facilities in the home has been proposed. In particular, as the development and dissemination of various wired / wireless communication technologies such as power line communication (PLC) or blue pitcher for ultra high speed communication, interest and demand for network-based home network systems are gradually increasing.

Moreover, mobile home networks are now enabled by the development of mobile phones (or mobile phones) and next-generation broadband wireless communications. Such mobile home networks have a short history, but they do not have mutually established protocols and standards. There is a problem that is difficult to apply in practice.

In recent years, wireless USB devices for a wireless communication network have a problem in that the transmission function and the reception function must be paired with each other in order to configure a wireless communication method. If one of the devices is lost or damaged, not only becomes useless, but also has the disadvantage that a plurality of devices cannot be used at the same time and is accompanied by a disadvantage that a pair of transmission / reception equipments must be provided at all times.

Therefore, by connecting home appliances and devices through wired / wireless networks without time and place constraints, security, device control, energy management, visitor management, and health monitoring functions in the home are universally adopted in the home to manage automation and information management. At the same time, a home network connected to the outside Internet network is needed for each household.

The present invention has been made in view of the above circumstances, for example, an electronic door lock, a wireless USB home controller connected to a remote control object including an electric / electronic device including a boiler, a lamp, and / or mechanical equipment, and the first terminal (mobile Many from the home server in response to control signals from the phone) or the second terminal (external PC) The control signal is wirelessly transmitted to the wireless USB home controller of the remote control target wirelessly via the wireless USB hub, and the operation is performed as the control status signal through the home server. It is an object of the present invention to provide a remote control system using a wireless universal serial bus to be delivered to the terminal.

In order to achieve the above object, according to a preferred embodiment of the present invention, in a remote control system for remotely controlling a remote control object including an electronic door lock, a boiler, a lamp by a terminal, receiving a control signal from the terminal A home server which transmits the control signal to a corresponding remote control object and receives a control status signal from the corresponding remote control signal and transmits the control signal to the terminal; A multi-to-many wireless USB hub that outputs to the home server and outputs a wireless USB method to a target and receives a control status signal from a corresponding remote control object to the home server by the wireless USB method. Even if the corresponding remote control target operates in response to the control signal transmitted through the USB hub, And then the completion of the operation state, as the signal-to-multipoint control state A remote control system using a wireless universal serial bus including a wireless USB home controller for transmitting to a wireless USB hub side is provided.

According to the present invention, the terminal includes a mobile phone as a first terminal connected to the home server through a repeater (base station) and a CDMA module, and an external PC as a second terminal connected to the home server via the Internet as a backbone network. Included.

The home server transmits a control signal from the terminal to the wireless USB home controller corresponding to the remote control object via the wireless USB hub so that remote control in response to the control signal is executed and in response to the control signal. An MPU for receiving an operation completion message of a corresponding remote control object as the control state signal and delivering it to the terminal; a USB host connected to the wireless USB hub and responsible for managing and controlling the wireless USB hub; The terminal includes an Internet device connected to the Internet to be connected to the corresponding home server.

Preferably, the MPU also includes a control to transmit the intrusion notification information for informing the intrusion status to the terminal when receiving the control state signal to inform the unauthorized access state from the wireless USB home controller.

In addition, the many-to-many wireless USB hub transmits a signal sensed at the target control target in which the wireless USB home controller is installed to the home server and transmits the control signal transmitted from the home server to a corresponding wireless USB home controller. A USB interface and the control signal transmitted through the USB interface to be output to a corresponding remote control object, and controlling a control status signal from the corresponding remote control object to be transmitted to the home server through the USB interface. MCU, and an RF module for wirelessly communicating the control signal for controlling the remote control object or the control state signal of the remote control object with a corresponding wireless USB home controller.

The wireless USB home controller is an RF module for wirelessly communicating a control signal received by a control of the remote control object and the reception of a control signal transmitted from the wireless USB hub, and in response to the control signal. It includes a MCU to control the operation of the remote control target to transmit the control status signal for the operation to the wireless USB hub by the RF module.

Preferably, when the MCU of the many-to-many wireless USB hub starts wireless data communication with the wireless USB home controller of the remote control target, the MCU performs an authentication procedure based on the unique ID included in the authentication request from the wireless USB home controller. It will contain the controls to execute.

Correspondingly, the MCU of the wireless USB home controller licensed by the authentication procedure includes a control for storing the authentication number transmitted under the control of the MCU of the wireless USB hub to complete the authentication.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a view showing an overall overview of a remote control system using a wireless universal serial bus (USB) according to a preferred embodiment of the present invention.

In the figure, reference numeral 10 denotes a mobile phone as a first terminal for controlling a remote control object (eg, an electronic door lock, a boiler, a lamp, etc.) in a home at a remote location or receiving a control status signal transmitted from each remote control object.

12 is a repeater (or base station) for relaying a control signal for a remote control object or a control status signal transmitted from the remote control object according to a data transmission system (for example, code division multiple access (CDMA) method) applied to the mobile phone 10. )to be.

14 is a CDMA module for communicating a control signal transmitted from the mobile phone 10 or a control status signal of the remote control target.

Further, 20 is an external PC as a second terminal for controlling a remote control object (for example, an electronic door lock, a boiler, a lamp, etc.) in the home at a remote location or receiving a control status signal transmitted from each remote control object.

22 is the Internet as a backbone network for exchanging a control signal from an external PC 20 as the second terminal or a control state signal for a remote control object.

30, a control procedure for a remote control object is executed in response to control signals from the mobile phone 10 and the external PC 20 as the first and second terminals, and the control state signal of the remote control object is transmitted to the mobile. It is a home server installed in the home for delivery to the phone 10 and / or the external PC (20).

32 is connected to the home server 30 to wirelessly transmit a control signal for the remote control object and receives a control status signal from the wireless USB home controller corresponding to each remote control object described later to perform wireless data communication Many-to-many wireless USB (W-USB) hubs.

40a, 40b, and --40n are first to Nth wireless USB (W-USB) home controllers provided correspondingly to the electronic door lock 42, boiler 44, and lamp 46 as the remote control object. .

Here, according to the present invention, the remote control object is not limited to the electronic door lock 42, the boiler 44, and the lamp 46, but addition of electric / electronic devices and / or mechanical equipment installed in the home is also possible. In addition, wireless USB (W-USB) home controllers are provided correspondingly to the additional electrical / electronic devices and / or mechanical equipment.

Here, according to the present invention, it is assumed that the wireless USB home controller (40; 40a, 40b, ---, 40n) is embedded in the corresponding remote control object.

Preferably, referring to FIG. 2, the home server 30 manages each of the wireless USB home controllers 40; 40a, 40b, ---, 40n corresponding to the remote control target, and the mobile phone 10. And / or a control signal received from the external PC 20 via the many-to-many wireless USB hub 32 to be remotely controlled (e.g., electronic door lock 42, boiler 44, lamp 46). Is transmitted to the wireless USB home controller (40; 40a, 40b, ---, 40n) corresponding to the remote control in response to the control signal, while at least one of the corresponding remote control targets in response to the control signal is executed. When one is activated, the operation completion message (ie, a control state signal) is received and transmitted to the mobile phone 10 and / or the external PC 20 as the first and / or second terminals.

In consideration of such a control procedure, the home server 30 is connected to the main processor unit (MPU) 50, which is responsible for overall control of the corresponding home server 30, and at least one wireless USB hub 32. PCMCIA interface 54 to support wireless communication by inserting a PC host for wireless communication such as a USB host 52 that manages and controls the wireless USB hub 32, a CDMA / IEEE802.11 / blue pitcher, and the IEEE801. Support the Internet device 56 and the MPU 50 to allow the external PC 20 to be connected to the Internet (i.e., backbone network) 22 and to the corresponding home server 30 in .11 mode. SDRAM (Syncronous dynamic RAM) 58 and a flash memory 60 as a memory for the.

Here, the USB host 52 is capable of connecting up to 126 wireless USB home controllers 40 through the wireless USB hub 32.

In addition, the MPU 50 manages and controls at least one wireless USB hub and the control signal input from the mobile phone 10 as the first terminal via the PCMCIA interface 54 or an external PC as the second terminal. Control signals input from the Internet 22 and the Internet device 56 through the wireless USB hub 32 connected to the USB host 52 (ie, the electronic door lock (20)). 42), the control to be transmitted to the wireless USB home controller (40a, 40b, ---, 40n) built in the boiler 44, the lamp (46).

In connection therewith, the MPU 50 is connected to the corresponding wireless USB home controller 40 according to control signals from the mobile phone 10 and / or the external PC 20 as the first and / or second terminals. 40a, 40b,-, 40n, the built-in remote control object (e.g., electronic door lock 42, boiler 44, lamp 46) when the operation status of the control state signal (i.e., operation completion signal) It will also include a control to be delivered to the corresponding mobile phone 10 and / or external PC 20.

In addition, when the MPU 50 receives a control status signal indicating an intrusion status from the wireless USB home controller (for example, 40a), a short message service (SMS) is sent to the mobile phone 10 as the first terminal. It also includes a control to transmit intrusion notification information for informing the intrusion status using a communication method such as).

In view of the above, according to the present invention, the MPU 50 is in the form of a system on chip (SOC), and includes an SDRAM controller, a PCMCIA controller, an LCD controller, various controllers required for an embedded system, a memory management unit (MMU), and an advanced system. An instruction set that can support the programming language is built in.

In addition, according to the present invention, the home server 30 manages the many-to-many wireless USB hub 32 as described above, and uses the Internet device 54 and the CDMA module 14 to establish a wired / wireless Internet connection. While supporting SMS function, an embedded operating system (Porting OS) is ported to manage device drivers of each device.

In addition, the home server 30 is easily connected to a home appliance through a web browser on the external PC 20 using an OSGI (Open Service Gateway Initiative) service platform related to a standard method of connecting a home appliance or a security device to the Internet. To make it possible. At this time, the OSGI service platform is made of a bundle for managing the wireless USB home controller 40 and a bundle for initialization of the SMS sending module.

The wireless USB hub 32 shown in FIG. 3 builds a wireless communication line for controlling the remote control target (for example, the boiler 44 and the lamp 46) in which the wireless USB home controller 40 is embedded. Control functions for other remote control objects (eg, intrusion monitoring devices, etc.) that are directly connected are designed.

That is, the many-to-many wireless USB hub 32 is a USB interface device for controlling various home appliances, electrical / electronic devices such as heating appliances, boilers, etc. through the wireless USB home controller 40. The home controller plays a role of controlling various electric appliances, electric appliances, boilers, etc. in the home which are directly connected to the home controller.

The wireless USB hub 32 is composed of a USB interface 70 as a USB interface engine, a MCU (Main Control Unit) 72 and an RF module 74, wherein the USB interface 70 is the wireless USB home controller. Signals detected by at least one remote control object (ie, home appliance or electronic door lock 42, boiler 44, electric / electronic device such as electric lamp 46 as a heating device) with built-in or directly connected thereto (40) In addition to the role of transmitting to the home server 30, the control signal transmitted from the home server 30 to be transmitted to the remote wireless USB home controller 40 through the corresponding wireless USB hub (32). It will also play a role.

Here, the USB interface 70 supports a data transfer method of control transfer, bulk transfer, interrupt transfer, and isochronous transfer.

The control transmission is a data transmission method used by the USB host 52 to read configuration information of the wireless USB hub 32, and the bulk transmission has an error detection function while being used for aperiodic bulk data transmission. The interrupt transmission is a data transmission method used when a small amount of data is periodically transmitted for simple control, and the isochronous transmission is used for an application where isochronity is more important than accuracy of data such as audio data or a video signal.

In this case, the isochronous transmission is guaranteed for the bandwidth of data transmission, the transmission speed of the data is guaranteed, and even if there is an error in the transmission, retransmission is not carried out, so even if there is an error in transmission, it is used for the transmission of data that emphasizes real time.

The MCU 72 controls the control signal transmitted through the USB interface 70 to be output to a corresponding remote control object, and receives a signal (control state signal) detected from the corresponding remote control object. The input detection signal is controlled to be transmitted to the home server 30 through the USB interface 70.

The RF module 74 wirelessly communicates a control signal for controlling the remote control object or a control state signal of the remote control object with a corresponding wireless USB home controller 40 (40; 40a, 40b,-, 40n). RF module 74 will be included.

In addition, the wireless USB home controller 40 enables the automatic recognition / connection / removal of the peripheral device during operation, and the connection of up to 126 peripheral devices.

That is, referring to FIG. 3, the wireless USB home controller 40 wirelessly communicates a control signal received from a control signal for a remote control object transmitted from the wireless USB hub 32 and a control of the remote control object. MCU 82 which is in charge of the overall control of the RF module 80 and the corresponding wireless USB home controller 40, for example, a digital input / output unit for digital input of 12 channels and digital output of 12 channels (DI / O8255) 84, for example, an analog input unit (AI / ADC0809) 88 for four-channel analog input, for example, an analog output unit (AO / DAC0800) 88 for one-channel analog output, and a two-channel counter and one. It includes counters 82C54 and 90 of the pulse width modulation (PWM) function of the channel.

Here, the electrical characteristics of the data I / O of the digital input / output unit 84, the analog input unit 88, the analog output unit 88, and the counter 90 are as shown in Table 1 below.

 I / O   IC   channel  Input properties  Output characteristics Resolution     Remarks  DI  8255  12chs TTL level input (5V)       -  DO  8255  12chs       - TTL level output (5V)  AI ADC0809   4chs Input range: 0 to +5 V       -  8bits Sampling: 100㎲  AO DAC0800   1chs       - Bipolar current  8bits Sampling: 100㎱ counter 82c54   2chs Up to 8MHz       - 16bits count  PWM 82c54   1chs       - Up to 8MHz 16bits PWM

In addition, the firmware of the wireless USB hub 32 is designed based on an 8-bit microprocessor.

In addition, in FIG. 3, the wireless USB hub 32 and the wireless USB home controller 40 embedded in the remote control object are connected through a wireless channel, and the RF modules 74 and 80 are connected to a large amount of digital data. In order to enable transmission, an orthogonal frequency division multiplexing (OFDM) and a CDMA are mixed by applying an ultra wide band (UWB) of 4 kHz to 3.1 GHz.

4 is a timing chart illustrating a process of binding a plurality of remote USB home controllers to a remote USB hub to a wireless USB hub.

That is, referring to FIG. 4, a process of connecting the wireless USB home controller 40 embedded in the plurality of remote control objects to the wireless USB hub 32 will be described. As a method for Binding, when a button for initiating communication with the wireless USB hub 32 is operated (S1), a signal search is performed (i.e., a scan) with a plurality of wireless USB hubs in the vicinity. do.

According to such a scanning method, when a broadcast wireless USB hub scan request is transmitted to a wireless USB (W-USB) hub group (S2), the wireless USB (W-USB) hub group is unicast. ) Scan response is delivered (S3, S4).

After the above scanning, a list (list) of the detected wireless USB hubs is prepared (S5), and the list includes the received signal strength indication (RSSI) and the corresponding wireless USB hub. The unique ID is recorded and the procedure for binding from the Wireless USB hub with the best received signal strength written in the list is entered.

That is, in order to bind, the wireless USB home controller 40 first selects one of the wireless USB hubs 32 included in the list (S6) and transmits a 'BIND request' (S7). 32 selects a PN (Pseudo Noise) code which is a device identification number and a stable channel for wireless communication (S8) to provide a 'BIND response' (including channel and PN code information) (S9).

Then, the corresponding wireless USB home controller 40 switches to the channel and PN code specified in the corresponding wireless USB hub 32 (S10), and then the corresponding wireless USB hub 'authentication request' including its own ID. 32 and the USB host 56 (S11, S12).

Here, since the unique ID of the transmitted wireless USB home controller is unique identification information owned only by the owner or the user of the wireless USB, the unique identification information of the wireless USB home controller to be connected among the users who own and use the wireless USB hub is used. In step S12, only the recognized user is allowed to be connected and usable, and through such a step, the user is allowed to use the wireless USB home controller from the wireless USB hub through the unique ID verification and authentication procedure (that is, the authentication response). ') Is transmitted (S13, S14), the corresponding wireless USB home controller receives the' authentication response 'signal to store the authentication number and complete the authentication (S15) to enable the use of the corresponding wireless USB home controller. do.

Since the controller of the USB host 56 is already implemented and stable, only a wireless USB hub client driver needs to be implemented when a device driver is to be created. The wireless USB home controller and the client device driver for the wireless USB hub are described above. The function of the wireless USB home controller 40 can be used in applications.

5 is a flowchart illustrating an authentication step for the wireless USB home controller executed in S13 of FIG. 4.

That is, when the authentication request including the unique ID information is transmitted from the wireless USB home controller 40, the USB host 56 of the home server 30 registers the unique ID of the wireless USB home controller in the database. It is determined whether or not it is (step 100).

As a result of the determination, if the unique ID is registered in the DB (ie YES in step 100), the authentication number for the wireless USB home controller is transmitted to the corresponding wireless USB home controller (step 102).

On the other hand, if the unique ID of the wireless USB home controller is not registered in the DB (that is, NO in step 100), the determination proceeds to step 104 to receive the ID of the corresponding wireless USB home controller from the user. do.

Then, in step 106, it is determined whether the ID transmitted from the wireless USB home controller matches the ID received from the user. In step 106, NO) authentication failure processing is executed (step 108). If the ID from the wireless USB home controller matches the ID from the user (i.e., YES in step 106), a new authentication number is generated and stored in the DB (step 110). And transmits to the home controller (step 112).

Accordingly, as described above, the wireless USB home controller 40 or 40a, which is embedded in or directly connected to a remote control target such as the electronic door lock 42, the electric boiler 44, the electric / electronic device including the electric lamp 46, or a mechanical facility. When a control signal is input from the mobile phone 10 as the first terminal and / or the external PC 20 as the second terminal with respect to, 40b, ---, 40n, the control signal is the case of the mobile phone 10. The home server 30 is transmitted to the home server 30 through the repeater (base station) 12 and the CDMA module 14 and, in the case of the external PC 20, through the Internet 22 as the backbone network. Is passed on.

In the home server 30, the control signal is applied to the wireless USB hub 20 via the USB host 52 under the control of the MPU 50.

The control signal applied to the wireless USB hub 20 is input to the MCU 72 through the USB interface 70 and wirelessly corresponding to the remote control through the RF module 74 under the control of the MCU 72. It is applied to the MCU 82 through the RF module 80 of the wireless USB home controller 40 (40; 40a, 40b, ---, 40n) to be controlled to execute an operation according to the control signal.

The control state signal by the completion of the operation according to the control signal is reversed from the transfer process of the control signal through the wireless USB hub 32 from the RF module 80 under the control of the MCU 82. It is delivered to the home server 30 side, and is notified to the mobile phone 10 or the external PC 20 under the control of the MPU 50 of the home server 30.

In addition, when the unauthorized intrusion state is detected from the wireless USB home controller 40; The intrusion notification information for informing the state of unauthorized intrusion by using a communication method such as a short message to the mobile phone 10 as the first terminal.

Meanwhile, the present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the technical gist and gist of the invention.

That is, the mobile phone 10 is a case where the CDMA method is applied, but is not limited to the CDMA method, but may be changed to a terminal of another communication method including the GSM method.

As described above, according to the remote control system using the wireless universal serial bus according to the present invention in response to the control signal input from the mobile phone as the first terminal or the external PC as the second terminal, home appliances / heating appliances / While the remote control object such as a boiler can be conveniently operated, the wireless USB home controller and the wireless USB hub of each remote control object are connected via a wireless channel, thereby ensuring freedom of installation and placement.

In addition, the present invention achieves the effect of ensuring the security and stability while a plurality of wireless USB home controller is actively connected to a single wireless USB hub.

Claims (4)

A remote control system for remotely controlling a remote control object including an electronic door lock, a boiler and a light by a terminal; A home server which receives the control signal from the terminal and transmits the control signal to a corresponding remote control object and receives a control state signal from the corresponding remote control signal and transmits the control signal to the terminal; Many-to-many wireless USB hub which is connected to the home server and outputs the control signal to the corresponding remote control object by the wireless USB method and receives the control status signal from the corresponding remote control object by the wireless USB method. ; And, Installed correspondingly to the remote control object to enable the corresponding remote control object to operate in response to the control signal transmitted through the wireless USB hub, and transmits the operation completion state to the wireless USB hub side as the control state signal. Remote control system using a wireless universal serial bus, characterized in that it comprises a wireless USB home controller. The method of claim 1, The MCU (Main Control Unit) included in the many-to-many wireless USB hub is applied from the wireless USB home controller when wireless data communication with the wireless USB home controller of the remote control is initiated by a signal of communication start by a user. It includes control to execute the authentication procedure based on the unique ID included in the authentication request, The MCU included in the wireless USB home controller licensed by the authentication procedure includes a control for storing the authentication number transmitted under the control of the wireless USB hub and completing the authentication. system. The method according to claim 1 or 2, The home server transmits a control signal from the terminal to the wireless USB home controller corresponding to the remote control object via the many-to-many wireless USB hub to execute remote control in response to the control signal. An MPU in response to receiving the operation completion message of the corresponding remote control object as the control status signal and delivering it to the terminal; A USB host connected to the many-to-many wireless USB hub and responsible for managing and controlling the wireless USB hub; And And an internet apparatus configured to allow the second terminal to be connected to the internet to be connected to a corresponding home server. The method of claim 1, The wireless USB home controller includes: an RF module for wirelessly communicating a control signal for a remote control object transmitted from the many-to-many wireless USB hub and a control state signal by control of the remote control object; And a microcontroller configured to control an operation of a corresponding remote control object in response to the control signal and to transmit a control state signal for the operation to the many-to-many wireless USB hub by the RF module. Remote control system using bus.

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