KR101102641B1 - How to Set Serial Port in Modem and Modem Using It - Google Patents

Abstract

The present invention relates to a modem including a first serial port, a second serial port, and a control unit for allocating the first serial port and the second serial port to a diagnostic module to control transmission of diagnostic data to an external device.

Description

How to Set Serial Port in Modem and Modem Using It {METHOD FOR ASSIGNING SERIAL PORT IN MODEM AND MODEM USING THE SAME}

The present invention relates to a method for setting a serial port in a modem and a modem using the method, and more particularly, by assigning two serial ports to a diagnostic module of a modem, DM (Diagnostic Monitor) data and a connection manager (CM). The present invention relates to a serial port setting method and a modem using the method in a modem capable of transmitting data simultaneously or sequentially to an external device.

Wireless modems that relay wireless data in order to interwork with broadband wireless communication networks having large capacity / high speed data transmission are generally provided in the form of using a PC card or a universal serial bus (USB) interface. It is provided as a PC card in a computer terminal (for example, a notebook or personal computer) or connected through a USB interface, and provides functions such as a modem function and a short message service transmission / reception function to enable a computer terminal to be connected to a wireless Internet network. do.

A conventional modem (MSM: Mobile Station Modem) provides two serial ports for serial data communication. A DM serial port assigned to a diagnostic module and a NMEA (Global Positioning System) module are assigned. National Marine Electronics Association) port.

When the modem is linked with various applications, only one application can be used through one serial port. Therefore, when the DM serial port is used for data communication with a Diagnostic Monitor (DM) program that can be linked with the diagnostic module, a connection manager (Connection manager), which is another program that can be linked with the diagnostic module, is connected. In order to use the Manager (CM) program, data communication is performed through the DM serial port after the use of the diagnostic monitor (DM) program is terminated.

That is, in the conventional modem, since only one DM serial port is allocated to the diagnostic module, the modem may monitor and debug the data communication process using the connection manager (CM) program. There was a problem that could not be.

The present invention has been made to solve the above problems, by assigning two serial ports to the diagnostic module of the modem to transmit the DM (Diagnostic Monitor) data and CM (Connection Manager) data simultaneously or sequentially The purpose of the present invention is to provide a serial port setting method and a modem using the method.

Modem according to an embodiment of the present invention may include a control unit for controlling the first serial port, the second serial port and the first serial port and the second serial port to the diagnostic module to transmit the diagnostic data to the external device. have.

According to an aspect of an embodiment of the present invention, the diagnostic data may include DM (Diagnostic Monitor) data and CM (Connection Manager) data.

According to an aspect of an embodiment of the present invention, the control unit allocates one of the first serial port or the second serial port to DM data communication, the other to CM data communication, and the DM data and the CM. The data may be transmitted to an external device simultaneously or sequentially through each assigned serial port.

A serial port setting method of a modem according to an embodiment of the present invention may include initializing a diagnostic module and assigning a first serial port and a second serial port to the diagnostic module to transmit diagnostic data to an external device. have.

According to an aspect of an embodiment of the present invention, the diagnostic data may include DM (Diagnostic Monitor) data and CM (Connection Manager) data.

According to an aspect of an embodiment of the present invention, the step of assigning the first serial port and the second serial port to the diagnostic module to transmit diagnostic data to an external device may include one of the first serial port and the second serial port. Allocating to the DM data transmission, and assigning the other one to the CM data transmission and transmitting the DM data and the CM data to an external device simultaneously or sequentially through the assigned serial port, respectively can do.

According to the present invention having the above-described configuration, by connecting the DM (Diagnostic Monitor) data and CM (Connection Manager) data to the external device at the same time or sequentially through the two serial ports, Connection Manager (CM) While running the program, you can debug through the Diagnostic Monitor (DM) program at the same time.

1 is a block diagram showing the configuration of a modem according to an embodiment of the present invention.
2 is a flowchart illustrating a method of setting a serial port of a modem according to an embodiment of the present invention.

  With reference to the accompanying drawings will be described a preferred embodiment according to the present invention. Like numbers refer to like elements in the figures.

1 is a block diagram showing the configuration of a modem according to an embodiment of the present invention.

Referring to FIG. 1, the modem 100 according to the present invention includes a controller 110, a first serial port 120, and a second serial port 130.

The controller 110 includes a diagnostic module 111 and a global positioning system (GPS) module 113. The modem may include a user interface (UI) module, a short message service (SMS) module, a call manager module, etc. in addition to the diagnostic module and the GPS module. However, in FIG. 1, parts except for the diagnostic module and the GPS module are omitted. Let's do it. The control unit allocates the first serial port 120 and the second serial port 130 to the diagnostic module 111 and controls the diagnostic data to be transmitted to an external device (for example, a PC).

The diagnostic module 111 performs a function of diagnosing / monitoring data flow in the modem. That is, as described above, the diagnostic data corresponding to the status information of the modem is diagnosed by diagnosing / monitoring the data communication status, order, etc. between modules such as the GPS module, the UI module, the SMS module, and the call processing module included in the control unit of the modem. Collect and communicate with external devices.

The GPS module 113 provides a location recognition service, a location tracking service, a location information providing service, a location based guidance service, and the like.

The first serial port 120 and the second serial port 130 performs serial data communication, and one serial port performs data communication in conjunction with one application program.

The diagnostic module 111 performs data communication with an external device through the first serial port 120 and the second serial port 130. The second serial port 130 is basically assigned to the GPS module 113 in the conventional modem and is configured to perform data communication. However, the modem according to the present invention modifies the function of the diagnostic module 111 on the program to allocate the second serial port 130 to the diagnostic module 111. Accordingly, the diagnostic module 111 may perform data communication with an external device using only one serial port of the two assigned serial ports 120 and 130 or data communication with an external device using both serial ports. It becomes possible.

The diagnostic module 111 included in the modem according to the present invention having the above configuration performs a function of diagnosing / monitoring the modem and collecting diagnostic data accordingly. The diagnostic data may include DM (Diagnostic Monitor) data and CM (Connection Manager) data.

The DM data and the CM data correspond to data requested when an application program executed in an external device is linked to the modem. The DM data is data requested when a Diagnostic Monitor (DM) program running on an external device is interlocked with the modem, and the CM data is a Connection Manager (CM) program running on an external device. Data requested when interworking with the modem.

The diagnostic monitor (DM) program is an application program for displaying log data inside the modem received by an external device according to data communication with the modem to a user, and analyzing the log data in a modem development stage. You can debug it. The connection manager (CM) program is an application program that allows a user to access or disconnect from the Internet using user information. Therefore, the DM data refers to the log data of the modem and the CM data refers to the log data of the modem in the process of accessing or disconnecting from the Internet.

When the diagnostic monitor (DM) program and the connection manager (CM) program are interworked with the modem, the diagnostic module 111 performs the diagnostic monitor (DM) through the first serial port 120 and the second serial port 130. The diagnostic data in the modem is transmitted to an external device, that is, a PC, in which the program and the connection manager (CM) program are stored.

The controller 110 assigns the first serial port 120 and the second serial port 130 to the diagnostic module 111 and controls the diagnostic data to be transmitted to an external device. That is, the controller 110 allocates one of the first serial port 120 or the second serial port 130 to the communication of the DM data, and assigns the other to the communication of the CM data.

A serial port is used for data communication between an application program and an external device, and one serial port is physically connected for data communication with one application program. As described above, since two serial ports are allocated to the diagnostic module 111 of the modem according to the present invention, the diagnostic monitor (DM) program and the connection manager (CM) program may be simultaneously linked with the modem. For example, the first serial port may be allocated to DM data communication requested by the diagnostic monitor (DM) program, and the second serial port may be allocated to CM data communication requested from the connection manager (CM) program. have. In this case, when accessing or disconnecting the Internet using the connection manager (CM) program, the CM data is transmitted to the external device through the second serial port, and the user runs the diagnostic monitor (DM) program. It is possible to monitor CM data and DM data, which are the log data of the modem, through an external device, and to debug immediately when an error occurs, that is, to simultaneously communicate data through the first serial port and the second serial port. .

In addition, only one of the diagnostic monitor (DM) program and the connection manager (CM) program may be interlocked with the modem. In this case, the two serial ports 120 and 130 may interwork with the modem. Of course, the DM data or CM data can be transmitted to an external device through the serial port allocated for the program and data communication.

The first serial port 120 and the second serial port 130 are allocated to the diagnostic module 111, and simultaneously or directly DM data and CM data through the two serial ports according to an application program executed in an external device. Pseudocode for the process of sequentially transmitting to the external device PC can be implemented as follows.

The Diag_task (void) function is a function corresponding to the diagnostic module 111, and Register_Port (SER1) and Register_Port (NMEA) diagnose the first serial port 120 and the second serial port 130. Function assigned to a module. In the conventional modem, the SER1 is a serial port assigned to the diagnostic module, and the NMEA is a serial port assigned to the GPS module. It can be seen that the first serial port 120 is assigned to the address '0x0001' and the second serial port 130 is assigned to the address '0x0002'. The Rex_wait-sig (sigs) function performs data communication through a first serial port when a data transmission request signal is input through '0x0001', and when a data transmission request signal is input through '0x0002', a second serial port. Perform data communication through. That is, when the diagnostic monitor (DM) program or the connection manager (CM) program is executed in an external device, data communication is performed through each serial port allocated for data communication with the program.

2 is a flowchart illustrating a method of setting a serial port of a modem according to an embodiment of the present invention.

Referring to Figure 2, the serial port setting method of the modem according to the present invention first initializes a diagnostic module (S100).

Next, the first serial port 120 and the second serial port 130 are allocated to the diagnostic module 111 to transmit the diagnostic data to an external device. The diagnostic data may include DM (Diagnostic Monitor) data and CM (Connection Manager) data. As described with reference to FIG. 1, the DM data is data requested when a Diagnostic Monitor (DM) program is executed in an external device. The DM data corresponds to log data in a modem. When the (Connection Manager: CM) program is executed, the log data of the modem for accessing or disconnecting from the Internet is requested data.

When transmitting the DM data and the CM data to an external device in which the diagnostic monitor (DM) program and the connection manager (CM) program are stored, a serial port should be set for data communication with each program. One of the first serial port 120 or the second serial port 130 is allocated to DM data communication, and the other is allocated to CM data communication. For example, the first serial port 120 is allocated to the transmission of DM data and the second serial port 130 is assigned to the transmission of CM data, or the first serial port 120 is transmitted to the CM data. The second serial port 130 may be allocated to DM data transmission (S200).

The controller 110 controls the DM data and the CM data to be transmitted to the external device simultaneously or sequentially through the assigned serial ports (S300).

For example, the first serial port 120 is allocated to the DM data communication requested by executing the diagnostic monitor (DM) program in an external device, and the CM data communication requested by the connection manager (CM) program executed. When the second serial port 130 is allocated to the second serial port 130, the CM data for accessing or disconnecting the Internet using the connection manager (CM) program is transmitted to the external device through the second serial port 130. . The user can monitor CM data and DM data, which are log data of the modem, through an external device on which the diagnostic monitor (DM) program is executed, and immediately debug when an error occurs. That is, since data communication is possible through the first serial port 120 and the second serial port 130 at the same time, the diagnostic monitor (DM) program and the connection manager (CM) program can be simultaneously executed to effectively debug the effects. There is.

In addition, only one of the diagnostic monitor (DM) program and the connection manager (CM) program may be interlocked with the modem. In this case, the two serial ports 120 and 130 may interwork with the modem. Of course, the DM data or CM data can be transmitted to an external device through the serial port allocated for the program and data communication.

Although embodiments according to the present invention have been described above, these are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments of the present invention are possible therefrom. Accordingly, the scope of protection of the present invention should be determined by the following claims, as well as equivalents thereof.

100: modem 110: control unit
111: diagnostic module 113: GPS module
120: first serial port 130: second serial port

Claims (6)

A first serial port;
A second serial port; And
Allocate the first serial port and the second serial port to a diagnostic module, assign one of the first serial port and the second serial port to Diagnostic Monitor (DM) data communication, and assign the other one to CM (Connection Manager) data. Allocate DM communication and DM data included in the diagnostic data simultaneously or sequentially through the assigned serial port. Modem including a control unit for controlling to transmit to an external device.
delete delete Initializing the diagnostic module;
Assigning one of the first serial port or the second serial port to the DM data transmission, and assigning the other to the CM data transmission; And
And transmitting the DM data and the CM data included in the diagnostic data to an external device simultaneously or sequentially through the assigned serial port.
delete delete

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