KR20100111941A - Method for discriminating device, m2m module and device thereof - Google Patents

Abstract

PURPOSE: A device determination method for minimizing the change of a device is provided to simply determine the kind of devices connected to a M2M(Machine-to-Machine) module and the device by a dip switch. CONSTITUTION: If a connection unit senses the connection with a device, a recognition unit attempts booting(S101). The recognition unit detects a setting value of the dip switch from the device(S105). The recognition unit determines a type of the connected device with the comparison of the received device ID code signal(S107). If the determination is completed, the recognition unit performs automatic reset(S109).

Description

Device determination method, M2M module and device for performing the same {Method for discriminating device, M2M module and device about}

The present invention relates to a device determination method, an M2M module and a device for performing the same. More specifically, the present invention relates to a method for determining a type of device connected to an M2M module, an M2M module and a device performing the same.

Machine-to-Machine (M2M) is a remote management and control solution that supports communication for data transmission between devices and servers using wired or wireless communication. The M2M is implemented in a module form for connection with a device that does not include a communication function.

Various types of devices may be connected to the M2M module, and various applications may be driven according to the type of devices to be connected. For example, the M2M module has functions such as wideband code division multiple access (WCDMA), global system for mobile communications (GSM) / general packet radio service (GPRS) Tri-Band, and global positioning system (GPS), and has low speed / high speed data. It can be used for various applications such as communication, remote meter reading, location tracking, and remote control.

As such, the M2M module can accommodate various types of devices. Since the connected device is optional, a function of determining the type and category of the connected device is required.

In order to solve such a problem, the present invention provides a method for actively and automatically determining a device connected to an M2M (M2M) module selectively connected to various devices, an M2M module and a device performing the same.

According to one aspect of the invention, a device determination method is provided. The method of determining a device is a method in which an M2M (M2M) module selectively connected to a heterogeneous device determines the device. (A) A unique device ID output by the device when the device is connected to the device; Detecting a code signal, wherein the device ID code signal is a logic signal generated according to a switching state of a dip switch mounted in the device; And (b) analyzing the device ID code signal to determine the type of the device.

According to another feature of the invention, an M2M module is provided. The M2M module is an M2M (M2M) module that is selectively connected to heterogeneous devices and transmits and receives data through a wireless communication network. When the device is connected, a device ID code signal is output by the device. A connection unit detecting a device ID code signal being a logic signal generated according to a switching state of a dip switch mounted in the device; And a recognizer configured to determine the type of the device by analyzing the device ID code signal detected by the connection unit.

According to another feature of the invention, a device is provided. The device is a device connected to an M2M (M2M) module for transmitting and receiving data through a wireless communication network to perform a unique function, wherein the device ID code signal according to a preset switching state, wherein the device ID code signal is A dip switch configured to output a device specific to the device; And a mux for transmitting a device ID code signal output from the dip switch to the M2M module through an interface for processing data transmission and reception between the M2M module and the device defined in the M2M module.

According to an embodiment of the present invention, by determining the type of the device connected to the M2M module using a dip switch mounted on the device, it is possible to simply and actively determine the type of various devices connected to the M2M module, the device is a simple electrical circuit Provides only the minimum device change.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… unit”, “… module” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. Can be.

Now, a device determination method, an M2M module and a device for performing the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram showing a communication system using an M2M (Machine-to-Machine) module according to an embodiment of the present invention.

According to FIG. 1, a device 100 is a device having a unique function and is defined as an electronic device capable of communication connection. For example, the device 100 may include a washing machine, a refrigerator, a camera, a mobile phone, a personal digital [data] assistant (PDA), a computer, a laptop, an MP3 player, a game machine, a telematics device, a fitness device, a smart terminal, a repeater, and an environmental sensor. And the like. In addition, the device 100 includes an interface means for connecting with the M2M module 200.

The M2M module 200 connects to the wireless communication network 300 by using a communication function held, and transmits and receives data with the M2M control server 400 through the wireless communication network 300. The M2M module 200 has a standard pin map between the device and the module so as to be open and freely connected to various heterogeneous devices 100. In addition, an application corresponding to the connected device 100 is executed to perform an operation accordingly.

The M2M control server 400 is a server that is connected to the M2M module 200 through the wireless communication network 300 and stores and transmits various data for providing a required service from the device 100.

Here, the M2M module 200 will actively determine the type of the connected device 100 will be described for the configuration thereof.

2 is a block diagram illustrating a detailed configuration of a device and an M2M module according to an embodiment of the present invention.

According to FIG. 2, the device 100 includes a central processing unit (CPU) 120, a dip switch 140, and a mux 160.

The CPU 120 controls the entire device 100. That is, it controls and adjusts a series of processes that receive data from various input devices, process them, and send the results to the output devices. In particular, it communicates with the M2M control server 400 in conjunction with the M2M module 200 to perform a predefined service function.

The dip switch 140 is a dual in line package (DIP) switch for setting an operating environment such as a target value or a limit value in a microprocessor. The dip switch 140 may set a bit value by independently turning on / off a plurality of switches having a small structure.

At this time, the dip switch 140 is set to the switching state corresponding to the unique ID code assigned to the device (100). That is, the unique ID code signal applied to the device 100 is generated by connecting the switch to either the power supply voltage VDD or the ground voltage. For example, the ID code of the device 100 of '0000' may be set by connecting all the switches of the dip switch 140 to the ground voltage. If there are N switches constituting the dip switch 140, 2 ^N device types may be defined.

As such, the dip switch 140 selectively grounds the power supply according to the switching state, thereby outputting a device ID code signal in the form of a logic signal according to the switching state.

The mux 160 switches input / output signals between the device 100 and the MTU module 200. The mux 160 transmits / receives an input / output signal through a pin assigned to a GPIO interface. At this time, the GPIO interface has four pins set so that three pins (GPIO0, GPIO1, GPIO2) output the device 100 ID code signal, and the other pin (MUX_SELECT (GPIO)) is a mux select signal for switching selection. Outputs That is, MUX_SELECT is set to the dip switch 140 at the initial booting of the M2M module 200, and is set to the CPU 120 after booting. The mux 160 switches input / output signals ID_GPIO0, ID_GPIO1, and ID_GPIO2 between the M2M module 200 and the dip switch 140 at the initial stage of booting according to the selection set in MUX_SELECT. After booting, the input / output signals MUX_GPIO0, MUX_GPIO1, and MUX_GPIO2 are switched between the M2M module 200 and the CPU 120.

The MUX 160 transmits the device ID code signal output from the dip switch 140 to the M2M module 200 through the GPIO interface connected to the M2M module 200.

Meanwhile, the M2M module 200 includes a connection unit 210, a recognition unit 220, a storage unit 230, a communication unit 240, and a control unit 250.

The connection unit 210 provides an interface for connecting the device 100 and the M2M module 200. The connection unit 210 may be configured of a plurality of pins according to a pin map designed in advance for selectively connecting with various devices 100.

At this time, the connection unit 210 is connected to the device 100 through the GPIO interface, GPIO interface is defined as an expansion port for data transmission and reception of various applications.

The recognition unit 220 determines the type of the device 100 connected through the connection unit 210 and performs booting for interworking with the connected device 100. When the device is connected to the recognition unit 220 through the connection unit 210, the ID code of the device 100 output by the dip switch 140 through three pins GPIO0, GPIO1, and GPIO2 implemented in the connection unit 210. Receive the signal. The device type is determined by comparing with a predefined device ID code signal. That is, the recognition unit 220 determines the device type instantaneously through the device ID code signal input from the dip switch 140 at the initial booting and automatically resets the device to use the GPIO interface as the original application extension port.

The storage unit 230 includes various programs and device ID tables executed in the M2M module 200.

Here, the various programs include a device determination program used to determine the device 100 by the recognition unit 220, a communication program for connecting to the wireless communication network 300 and transmitting and receiving data, and a positioning program using a GPS module. In addition, it includes various programs such as a control program for the operation of the M2M module 200.

In addition, in the ID table, a unique device ID code signal is mapped for each device 100, as shown in FIG. 3.

3 illustrates a configuration of a device ID table according to an embodiment of the present invention. In this case, a device ID code is mapped to each device identification number in FIG. 3A, and a device is defined for each device identification number in FIG. 3B.

According to FIG. 3A, the vertical item 501 represents a device identification number, and the horizontal item 503 represents a device ID code. For example, the device ID code corresponding to the device identification number '0' is 'ID_GPIO0 = 0, ID_GPIO1 = 0, ID_GPIO2 = 0', that is, '000'. According to FIG. 3B, the device identification number '0' corresponds to a beam projector.

Therefore, when the device ID code signal '000' is received from the dip switch 140 of the device, the recognition unit 220 recognizes that the connected device is a beam projector.

Meanwhile, in FIG. 2, the communication unit 240 provides an interface with the wireless communication network 300 and is connected to the M2M control server 400 through the wireless communication network 300 to transmit and receive data.

The controller 250 controls the operations of the components 210, 220, 230, and 240 of the M2M module 200, and controls the interworking processor with the device 100.

Next, a description will be given of a series of processes by which the recognition unit 220 determines the device 100 connected to the connection unit 210.

4 is a flowchart illustrating a device determination process according to an embodiment of the present invention.

According to FIG. 4, when the connection unit 210 detects a connection with the device 100 (S101), the recognition unit 220 attempts to boot (S103) and detects a setting value of the dip switch 140 from the device 100. (S105). That is, the device ID code signal output from the dip switch 140 is received.

The recognition unit 220 determines a connected device type by comparing a device ID code signal for each device type with a received device ID code signal (S107). That is, the device ID code table is searched to determine the device type to which the received device ID code signal is mapped.

When the determination is completed (S109), the recognition unit 220 automatically resets (S111) and converts the GPIO interface to the extended interface.

The embodiments of the present invention described above are not only implemented by the apparatus and method but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded, The embodiments can be easily implemented by those skilled in the art from the description of the embodiments described above.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a schematic diagram showing a communication system using an M2M (Machine-to-Machine) module according to an embodiment of the present invention.

2 is a block diagram illustrating a detailed configuration of a device and an M2M module according to an embodiment of the present invention.

3 illustrates a configuration of a device ID table according to an embodiment of the present invention.

4 is a flowchart illustrating a device determination process according to an embodiment of the present invention.

Claims (11)

In the method for determining the device by an M2M (M2M) module selectively connected to a heterogeneous device, (a) detecting a unique device ID code signal output by the device when connected to the device, wherein the device ID code signal is a logic signal generated according to a switching state of a dip switch mounted in the device; And (b) analyzing the device ID code signal to determine the type of the device; Device determination method comprising a. The method of claim 1, Before step (a), Configuring a device ID table in which a unique device ID code signal is set for each device type; In step (b), And determining a device type corresponding to the device ID code signal detected in the step (a) by searching the device ID table. The method according to claim 1 or 2, In step (a), And detecting the device ID code signal through an interface that processes data transmission and reception with the device at initial booting. The method of claim 3, After step (b), Resetting the interface to switch to data transmission / reception with the device when the device type determination is completed; Device determination method further comprising. In the M2M (Machine to Machine) module that is selectively connected to heterogeneous devices and transmits and receives data through a wireless communication network, A connection unit detecting a device ID code signal output by the device when the device is connected, wherein the device ID code signal is a logic signal generated according to a switching state of a dip switch mounted to the device; And Recognizing unit for analyzing the device ID code signal detected by the connection unit to determine the type of the device M2 module including a. The method of claim 5, Storage unit that stores the device ID table in which a unique device ID code signal is set for each device type M2 module further comprising. The method of claim 6, The recognition unit, M2M module to search the device ID table stored in the storage unit to determine the device type corresponding to the device ID code signal detected by the connection unit. The method according to any one of claims 5 to 7, The connecting portion, The M2M module detects the device ID code signal through an interface that processes data transmission and reception with the device at initial booting. The method of claim 8, The recognition unit, When the device type determination is completed, the M2M module to reset the interface to switch to the data transmission and reception with the device. In the device that is connected to the M2M (M2M, Machine to Machine) module for transmitting and receiving data through a wireless communication network to perform a unique function, A dip switch configured to output a device ID code signal according to a preset switching state, wherein a device ID code signal is specified for each device; And A mux for transmitting a device ID code signal output from the dip switch to the M2M module through an interface that processes data transmission and reception between the M2M module and the device defined in the M2M module. Device comprising a. The method of claim 10, Further comprising a Central Processing Unit (CPU) to perform a predefined function in conjunction with the M2M module, The mux, Checking the MUX selection signal output from the M2M module, switching the input / output signal between the M2M module and the dip switch when the MUX selection signal indicates a dip switch, and when the MUX selection signal indicates the central processing unit, A device for switching input and output signals between the M2M module and the central processing unit.

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