KR100291589B1 - Method for controlling activation of terminal to reduce power consumption - Google Patents

Abstract

PURPOSE: A method for controlling the activation of a terminal to reduce the power consumption is provided to realize the operation for reducing the power consumption with software by activating the two wires through driving an U-interface chip in using a DMT(Digital Voice Telephone) terminal and inactivating the U-interface chip in not using. CONSTITUTION: The method comprises steps of respectively initializing a CPU and an U-interface driving chip(4b,4c), driving a key scanning program or a handset hook program in order that a DMT receives the basic input(4d), checking hooking-off to decide using or not using the DMT(4e), activating the 2 wires by activating the faced U-interface chip through the U-interface chip in case of hooking off(4f), servicing the voice or data communication to the DMT and checking that the service is ended after completing the activation(4g), examining that the system and DMT receives 'FA' or 'AA'(4h), and progressing the inactivation flow after receiving 'FA'(4j) or 'AA'(4i).

Description

Activation control method in terminal to reduce power consumption

1 is a view showing an activation control method in a terminal according to the present invention.

FIG. 2 is a diagram illustrating a configuration in which a DMT is connected to and used in a system according to FIG. 1.

3 shows a deactivation flow according to the invention.

4 is a view showing an activation control flow in a terminal according to the present invention.

The present invention relates to a terminal, and more particularly, to an activation control method for reducing power consumption.

The existing digital voice telephone (DVT) has been used for communication and data communication using four wires, both Tx 2 wires and Rx 2 wires. As DVT is renamed as Digital Multi-role Terminal (DMT) and developed from conventional 4-wire method to 2-wire method, it is suitable for U-interface chip used to implement 2-wire type. There is a need for a hardware implementation as well as a software implementation to reduce power consumption. In order to establish a two-wire DMT connected to the system and establish a communication path between the terminal and the system (terminal-DMT-unique number and signal), the two-wire must be activated by driving the U-interface chip. This activation leads to a two-wire activation flow by driving the U-interface at the same time that the DMT is connected to the system in two wires. This is done because the DMT is powered by the system.However, if the DMT is always fixedly powered, whether or not the DMT is used, the amount of power supplied to each DMT terminal in the system increases as well as the DMT itself. The power consumption limit is exceeded.

Accordingly, an object of the present invention is to provide an activation control method of a terminal which suppresses power consumption.

Another object of the present invention is to provide an activation control method of a terminal which reduces power consumption in a 2-wire DMT.

Another object of the present invention is to provide an activation control method of a terminal to be activated only during use in a 2-wire DMT.

In order to achieve the object of the present invention, the present invention, when each DMT terminal is used to drive the U-interface chip to activate the two wires, when not used to reduce the power consumption by deactivating the U-interface chip The present invention is directed to an activation control method of a terminal implemented in software.

The activation control method of a terminal according to the present invention includes a first process of initializing a central processing unit and a U-interface driving chip at power-on, and a kiss canning program and a handset hook program for the DMT to accept basic input. The second process of driving, the third process of hooking off to check whether the DMT is used in this state, and the third process of checking, and if the hooking off in the third process, the other U-interface chip is activated through the U-interface chip. 4th step of activating 2 wires, 5th step of confirming whether the service is terminated after service or voice communication with DMT after activation is completed, and FA or AA in system and DMT for 5th step And a sixth process of checking whether the received the FA and a seventh process of deactivating the flow after receiving the FA or the AA in the sixth process.

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

The hardware configuration method for implementing the activation control method in the terminal according to the present invention reveals that, for example, in DMT, the hardware only needs to provide an electrical interface to the U-interface chip for converting from 4 wires to 2 wires. . The activation control method in the terminal according to the present invention will be described in detail later.

[Software Implementation Process]

end. U-interface activation process

1 is a view showing an activation control method in a terminal for reducing power consumption according to the present invention. As shown in FIG. 1, the 2-wire and U-interface chips are in an inactive state before the DMT is connected. In this state, when the DMT is powered on or reset, the central processing unit de-initializes and goes through the deactivation procedure through the U-interface and 2-wire. While sending a deactivation request (DR), it also sends a deactivation confirmation (DC). When the DMT receives the DR and DC, the DMT sends a DI (Deactivation Indication) to the system, and the system knows that the line is in an inactive state or the line is guaranteed to be connected to the DMT. This state in Figure 1 shows the path from power-off (hook-off) to power-on (system connection) or reset when the two wires are inactive. In this regard, FIG. 2 shows how such a DMT is connected to and used in the system. DMI is a card using U-interface chip for two-wire implementation in the system, and two wires come out of this DMI card to provide services to each DMT terminal. In addition, even if each DMT terminal is connected to the DMI card via two wires, the power consumption is not large because each DMT is in an inactive state unless each DMT proceeds with an activation flow by hooking off. The above process is applied when the DMT is not used, and is used at power-on or reset or when hooking-on of the DMT.

The following is the process when DMT is used. In FIG. 1, when the DMT hooks off, the DMT sends an AR (Activation Request) signal from the DMT side to the system side, and the system side also sends an AR signal to the DMT. When the DMT receives an AR from the system in response to its AR, it sends an AI (Activation Indication) as an indication that it is ready, and when the system receives an AI from the DMT, the system also activates itself again. The AI will be sent to DMT. In this way, when both parties send and receive AI, the two wires are activated so that the DMT can perform the original CPC signaling with the system. At this time, the U-interface chip for both wires is driven so that the required power can be used. As shown in Fig. 1, the activation flow is from the hook-off to the start of CPC signaling, and then the call path is set up from the seize CPC signal to 7 digits (DIGIT).

I. U-interface deactivation process

After the U-interface is activated to set up the call path and receive voice or data communication service, it proceeds with a deactivation flow to reduce power consumption. At this time, when the service is finished, the DMT is sent to the system by FA (release)-hook-on-CPC or system by DMT E6 (EOH (End-Of-Hook))-when the counterpart DMT hooks on, the system sends to another DMT. -Send to CPC to confirm that the call is over. So, when the hooked-up DMT sends the FA to the system, the system sends the AA (IDLE) CPC signal to the DMT, and the DMT receiving the AA performs the deactivation flow as shown in FIG. 3 to reduce power consumption. Also, the system receiving FA from DMT sends E6 (EOH) to other DMT, and the DMT receiving E6 sends FA (release) to the system side while hooking on, and the system receiving FA sends AA (IDLE) to DMT. After confirming that the call paths are disconnected from each other, the deactivation flow of FIG. 3 proceeds to reduce power consumption.

All. program

4 shows an activation control flow in a terminal according to the present invention. When power-on or reset as shown in Fig. 4, the central processing unit 4b and the U-interface driving chip 2091 are respectively initialized. (4c) After this initialization, the DMT uses the key canning to accept the basic input. -scanning) program (hook key detection) and handset hook program are always run. (4d) In this state, it is hooked off but always checked (4e) to see if DMT is used. Activate the counterpart 2091 to activate the 2nd line. (4f) After the activation is completed, service voice or data communication on the DMT and check if the service is over. (4g) (4h) After receiving FA (4j) or after receiving AA (4i) (Hook on meaning) Proceed with the deactivation flow as shown in Figure 3 to reduce power consumption.

As described above, the activation control method in the terminal according to the present invention has an effect of reducing power consumption by controlling the activation so that it is activated only during use in the 2-wire DMT.

Claims (1)

A method for controlling activation of a terminal, comprising: a first process of initializing a central processing unit and a U-interface driving chip at power-on, and a second process of driving a kisscanning program and a handset hook program to receive a basic input by the DMT; And a third step of checking whether the DMT is used or not in this state, the hook-off or checking process, and when the hook-off is made in the third step, activates the other U-interface chip through the U-interface chip. A fourth process of activating the wire, a fifth process of confirming whether the service is terminated after the voice or data communication is provided to the DMT after the activation is completed, and a FA or AA is applied to the system and the DMT for the fifth process. And a sixth step of checking whether the received information is received, and a seventh step of deactivating the flow after receiving the FA or the AA in the sixth step. Activation control method of the terminal.