KR100656522B1 - Contorl system and method for service between different module using general purpose input output - Google Patents

Abstract

The present invention relates to a heterogeneous service control system and a method between heterogeneous modules using a general-purpose I / O port for controlling a service state by using a GPIO between modules providing different independent services. According to the present invention, A first module for controlling a power control signal generated according to a user's input signal, and booting state information during booting and power state information changed according to a power control signal transmitted from the first module to the first module Comprising a second module, the first module detects booting state information and power state information transmitted from the second module to control the output state of the power lamp.

Universal I / O Port, Multimedia Service, Satellite Broadcasting Service, Set Top Box

Description

Service control system between heterogeneous modules using general-purpose input / output port and its method {CONTORL SYSTEM AND METHOD FOR SERVICE BETWEEN DIFFERENT MODULE USING GENERAL PURPOSE INPUT OUTPUT}             

1 is a view showing a general configuration of a set-top box for providing a multimedia service and satellite broadcasting service.

FIG. 2 is a diagram illustrating a connection state of the intermodule universal input / output port (GPIO) of FIG. 1.

3 is a view showing a connection state of a universal input output port (GPIO) between service modules of the set-top box according to the present invention.

4 is a timing diagram when a first module providing a multimedia service is in a service mode and a second module providing a satellite broadcasting service is in a service state.

5 is a timing diagram when a first module providing a multimedia service is in a service mode and a second module providing a satellite broadcasting service is in a standby state.

FIG. 6 is a timing diagram when a second module providing satellite broadcasting service is in a service mode and the second module is in an active state.

7 is a timing diagram when the first module providing the multimedia service is in the service mode and the second module providing the satellite broadcasting service is reset and rebooted.

8 is a timing diagram when a second module providing satellite broadcasting service is reset and rebooted in a service mode state.

9 is a timing diagram at the time of switching between modules.

FIG. 10 is a timing diagram when a reservation on occurs in a standby state of the second module. FIG.

FIG. 11 is a timing diagram when reservation on of the second module 20 occurs in the service mode of the first module 10. FIG.

FIG. 12 is a timing diagram when the reservation on of the second module 20 is canceled in FIG. 11.

Explanation of symbols on the main parts of the drawings

10: first module 20: second module

The present invention relates to a heterogeneous inter-module service control system and a method using a general-purpose input and output port, and more particularly, to a system for controlling a service state using a universal inter-module input / output port (GPIO) providing different independent services. And to a method thereof.

In general, multimedia services and satellite broadcasting services are provided from a settop box in which independent hardware modules are integrated. Multimedia service provides services such as video on demand (VOD), broadcasting channel, home monitoring, text message, life information search, emergency call message, etc. by using high speed internet communication network. The broadcast service provides various broadcast services using digital signals.

FIG. 1 is a diagram illustrating a general configuration of a set-top box providing a multimedia service and a satellite broadcasting service, and FIG. 2 is a diagram illustrating a connection state of a universal input / output port (GPIO) between modules of FIG. 1.

As shown in FIG. 1, an infrared ray (IR) signal generated from the remote controller 1 or a signal generated from a button on the front panel of the set top box may be used in the microcomputer 2 of the set top box. Passed to to change the code value. The changed code value is always input to the first module 3, which is a main module for providing a multimedia service through UART, and is serviced to the second module 4, which is a sub module for providing satellite broadcasting service. It is entered only in the status.

The above service is an embodiment for explaining the invention, and the service for each module may vary.

In particular, a power LED operating according to an input signal of a power button on a remote controller or a set top box is commonly used for the first module 3 and the second module 4. Accordingly, since the power LED cannot be individually controlled in each module, the second module 4 which is a submodule cannot directly control the power LED, but only the first module 3 which is the main module. .

Accordingly, even when the second module 4 enters the standby state, there is a problem that the state of the power LED maintains the green color indicating the active state.

In order to solve this problem, as shown in FIG. 2, the GPIO port line, which is a general-purpose input / output port between the first module 3 and the second module 4, is connected to the second module from the first module 3. The power of the second module 4 can be controlled by transmitting the power control signal PWR_CTRL signal to the module 4. At this time, the second module 4 ignores the power control signal input through the UART.

That is, when the second module 4 is in the service mode, the first module 3 receives a power key value input to the second module 4 through the PWR_CTRL GPIO, and a PWR_CTRL signal that is a power control signal (Low). It transmits the service status, High (standby status) and controls the power LED.

Accordingly, the second module 4 reads the state value of the PWR_CTRL GPIO transmitted from the first module 3, and when the value is low, the second module 4 becomes a service state and becomes high. In one case, it is controlled to a standby state.

However, since the second module 4 is operated only by the PWR_CNTL GPIO state value transmitted from the first module 3, the second module 4 automatically becomes active after a predetermined time and sends out a broadcast. When the ON function is set, the reservation ON is not activated even when the second module 4 is in the standby state or the reservation time when the first module 3 is in the service state. That is, even if the second module 4 operates in the reserved ON state and automatically changes to the active state, if the PWR_CNTL GPIO state value is in the standby state, the second module 4 detects this and immediately returns to the standby state ( There was a problem of entering the standby state.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to control the service state by using the inter-module general-purpose input / output port (GPIO) providing different independent services, thereby controlling the control of the main module according to the state of each module The present invention provides a service control system between heterogeneous modules using a general-purpose input / output port and a method thereof so that a reserved on operation of a receiving sub-module is normally performed and an output state of a power LED is normally output.

According to an aspect of a heterogeneous inter-module service control system using a general-purpose input / output port according to the present invention for achieving the above object, the first module for controlling the power control signal generated according to the user's input signal, and booting at boot And a second module that transmits power state information changed according to state information and a power control signal transmitted from the first module to the first module, wherein the first module is boot state information transmitted from the second module. It detects power status information and controls output status of power lamp.

When the first module is in a service state and the second module is in an active state and the first module and the second module are simultaneously booted, the second module changes the power state information from the active state to the standby state. .

When the first module is in a service state and the first module and the second module are booted at the same time while the second module is in the standby state, the second module changes the power state information from the active state to the standby state. .

When the second module is in a service state and the first module and the second module are simultaneously booted while the second module is in an active state, the second module changes the power state information from a standby state to an active state. .

When the first module is in a service state and only the second module is reset and rebooted, the second module changes the power state information from an active state to a standby state.

When the second module is reset in the service state and rebooted, the second module changes the power state information from the standby state to the active state.

The first module switches the service module according to the power state information of the second module.

The first module converts a service module to the second module when the power state information of the second module is in an active state.

When the first module and the second module are in the standby state, the first module displays the power lamp with the first display value.

When any one of the first module and the second module is in an active state, the first module displays the power lamp as the second display value.

The second module changes the power state information to an active state when a reserved on signal is generated in a standby state.

When the reservation on signal of the second module is generated in the service state of the first module, the first module changes the service module according to whether the user selects the reserved viewing.

When the user selects reserved viewing, the first module changes the service module to the second module.

When the user cancels the reserved viewing, the second module changes the power state information to the standby state according to the change of the power control signal transmitted from the first module.

On the other hand, according to one aspect of the heterogeneous inter-module service control method using a general-purpose input and output port according to the present invention for achieving the above object, the first module to control the power control signal generated according to the user's input signal and And transmitting boot state information when the second module boots and power state information changed according to the power control signal of the first module to the first module, and booting the first module transmitted from the second module. And controlling the output state of the power lamp by detecting the status information and the power status information.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, detailed descriptions of preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that reference numerals and like elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

3 is a diagram illustrating a connection state of a general-purpose input / output port (GPIO) between service modules of a set-top box according to the present invention.

As shown in FIG. 3, in the present invention, a first module 10 for providing a multimedia service and a second module 20 for providing a satellite broadcasting service are connected through a universal input / output port (GPIO). That is, the A port of the first module 10 is connected to the X port of the second module 20, the B port of the first module 10 is connected to the Y port of the second module 20, and the first The C port of the module 10 is connected to the Z port of the second module 20.

Table 1 below describes the functions of the general-purpose input / output ports (GPIOs) connected between the first module 10 and the second module 20.

Name Explanation PWR_CTRL Forcibly turns on / off the power of the second module from the first module BOOT_STAT Notify the first module of the booting status of the second module High (1): Booting status, Low (0): Booting completion status PWR_STAT Notify the first module of the service / standby status of the second module. High (1): Standby, Low (0): Service (operation) Active

As shown in Table 1, the PWR_CTRL transmitted from the first module 10 to the second module 20 is an active state of the second module 20 in which the first module 10 is a main module. Signal to forcibly control the standby state. That is, the PWR_CTRL control signal is not a signal for turning on / off the power supply of the second module 20, but a signal for controlling the active state / standby state of the monitor, such as a screen protection function of a computer. As such, unlike the BOOT_STAT and PWR_STAT, the first module 10 does not send a power state through the PWR_CTRL.

The second module 20 processes the received power signal when the state of the PWR_CTR signal is changed. That is, whenever the value of PWR_CTRL is changed from 0-> 1 or 1-> 0, the second module 20 processes the received power signal. However, when the state of the PWR_CTRL is changed, the second module 20 does not process the power signal immediately and checks the value of the PWR_CTRL again after 200 ms in preparation for the temporary H / W noise. Treat the signal as being input.

The driver of the second module 20 that receives the power signal through the PWR_CTRL notifies the key state task of the change of the power state, and the key process task of the second module 20 changes. It is treated as a state that should be (active state / standby state).

As such, the key process task performs a process for the power state of the second module 20 and processes the state of PWR_STAT, which is the GPIO Z port of the second module 20, as the changed power state. Done.

Accordingly, the first module 10 detects the power state of the second module 20 through the state of PWR_STAT transmitted from the second module 20 to determine the output state of the power LED as shown in Table 2 below. To manage.

First module Second module Power LED Output Status Standby Standby Red Active state Standby green Standby Active state green

As shown in Table 2, when both the first module 10 and the second module 20 are in the standby state, the first module 10 controls the output state of the power LED to be maintained in red. When the first module 10 is in an active state and the second module 20 is in a standby state, or when the first module 10 is in a standby state and the second module 20 is in an active state, the power LED It will control the output status to stay green.

In addition, if the user is turned off after the power is turned off from the service being watched, the user should be shown as the service state that was previously viewed. Stored in the first module 10, the second module 20 is to store the content that can determine whether it was previously active or standby.

Hereinafter, the signal state of the GPIO port over time will be described in detail with reference to FIGS. 4 to 12. The horizontal axis in each figure shows the passage of time and the vertical axis shows the signal status of the GPIO port.

First, the detailed operation to be operated so that side effects do not occur in the power control of the second module 20 and the resultant power LED output state due to the reservation on function is described.

4 is a timing diagram when the first module 10 for providing a multimedia service is in a service mode and the second module 20 for providing a satellite broadcasting service is in a service state.

As shown in FIG. 4, when power is supplied to the first module 10 and the second module 20 at the time t1 and simultaneously booted, and the first module 10 is first booted at the time t2. Assume In this case, even if the second module 20 is booted first, it may be applied to the present algorithm as it is.

Subsequently, at time t3, the booting of the second module 20 is completed and the second module 20 transmits a power key event to the key process task.

Subsequently, when booting of the second module 20 is completed at time t4, BOOT_STAT is changed from 1 (booting state) to 0 (booting state) after t seconds (3 seconds in the present system). If BOOT_STAT is changed to 0 immediately after booting is completed, it may be confused with the scheduled ON function described later, so that there is a time of t seconds. In practice, at this point, the first module 10 monitors whether the reserved on of the second module 20 is executed.

Subsequently, at time t5, the second module 20 changes the power status received through the key process task to the active state (0) in the GPIO Z port PWR_STAT.

Subsequently, since the first module 10 is in a state of providing a multimedia service at a time t6, the first module 10 of the PWR_CTRL GPIO line when PWR_STAT is 0 (active state) and BOOT_STAT is 1 (booting state). By changing the Status, the second module 20 is made into a standby state.

Subsequently, at time t7, the second module 20 pulls the state of the PWR_CTRL at 200 ms intervals and transmits a power key event to the key process task when the state is changed.

Accordingly, at time t8, the key process task changes the state of the GPIO Z port PWR_STAT to 1 (standby state).

FIG. 5 is a timing diagram when the first module 10 for providing a multimedia service is in a service mode and the second module 20 for providing a satellite broadcasting service is in a standby state. 10) This is the case when the system is booted when power is cut off and power is supplied again while providing multimedia service in this active state.

As shown in FIG. 5, when power is supplied to the first module 10 and the second module 20 at the time t1 and simultaneously booted, the first module 10 is first booted at the time t2. Assume In this case, even if the second module 20 is booted first, it may be applied to the present algorithm as it is.

Subsequently, at time t3, the booting of the second module 20 is completed and the second module 20 transmits a power key event to the key process task.

Subsequently, when booting of the second module 20 is completed at time t4, BOOT_STAT is changed from 1 (booting state) to 0 (booting completed state) after t seconds. At this time, if BOOT_STAT is changed to 0 immediately after the booting is completed, a time of t seconds may be left because it may be confused with the scheduled on function described below. In practice, at this point, the first module 10 monitors whether the reserved on of the second module 20 is executed.

Subsequently, at time t5, the second module 20 changes the power status received through the key process task to the active state (0) in the GPIO Z port PWR_STAT.

Subsequently, since the service state of the second module 20 is stored in the standby state at time t6, a power key event is transmitted to the key process task in order to convert to the standby state.

Subsequently, the second module 20 changes the standby state 1 to the GPIO Z port PWR_STAT at time t7 and maintains the standby state 1 at time t8.

FIG. 6 is a timing diagram when the second module 20 providing satellite broadcasting service is in a service mode and the second module 20 is in an active state.

As shown in FIG. 6, when power is supplied to the first module 10 and the second module 20 at the time t1 and simultaneously booted, the first module 10 is first booted at the time t2. Assume In this case, even if the second module 20 is booted first, it may be applied to the present algorithm as it is.

Subsequently, at time t3, the booting of the second module 20 is completed and the second module 20 transmits a power key event to a key process task.

Subsequently, when booting of the second module 20 is completed at time t4, BOOT_STAT is changed from the booting state 1 to the booting completion state 0 after t seconds.

Subsequently, at time t5, a key process task of the second module 20 changes the state of PWR_STAT, which is a GPIO Z port indicating a power status, to an active state (0), and at time t6. Maintains the active state (0).

FIG. 7 is a timing diagram when the first module 10 providing the multimedia service is in a service mode and the second module 20 providing the satellite broadcasting service is reset and rebooted. In this case, the description of FIG. The operation is the same as in the case where the first module 10 is in the service mode and the second module 20 providing the satellite broadcasting service is in the standby state.

That is, as illustrated in FIG. 7, when the second module 20 is rebooted by the reset signal at time t1 and the booting is completed, the second module 20 may perform a power key event at time t2. ) To the Key Process Task.

Subsequently, when booting of the second module 20 is completed at time t3, BOOT_STAT is changed from 1 (booting state) to 0 (booting completed state) after t seconds. At this time, if BOOT_STAT is changed to 0 immediately after booting is completed, it may be confused with the scheduled ON function described later, so that there is a time of t seconds. In practice, at this point, the first module 10 monitors whether the reserved on of the second module 20 is executed.

Subsequently, at time t4, the second module 20 changes the power status received through the key process task to the active state (0) in the GPIO Z port PWR_STAT.

Subsequently, since the first module 10 is in the service mode at time t5, the second module 20 is completely booted into the stored state. That is, the second module 20 transmits a power key event back to the key process task in order to become a standby state.

Accordingly, at time t6, the key process task of the second module 20 changes the state of PWR_STAT, which is a GPIO Z port indicating a power status, to a standby state (1). The standby state 1 is maintained at this point.

FIG. 8 is a timing diagram when the second module 20 providing the satellite broadcasting service is reset and rebooted in the service mode.

As shown in FIG. 8, only the second module 20 is rebooted by the reset signal at a time t1 and the booting of the second module 20 is completed at a time t2.

Accordingly, at the time t3, the second module 20 transmits a power key event to a key process task.

Subsequently, when booting of the second module 20 is completed at time t4, BOOT_STAT is changed from the booting state 1 to the booting completion state 0 after t seconds.

Subsequently, since the second module 20 reboots in the active state at time t5, the key process task of the second module 20 is a GPIO Z port indicating a power status. The state of PWR_STAT is changed to the active state (0), and the second module 20 maintains the active state (0) at time t6.

9 is a timing diagram at the time of switching between modules.

As shown in FIG. 9, at time t1, the first module 10 changes the power state of the second module 20 through the PWR_CTRL GPIO. That is, when the service mode switch occurs in the service mode of the first module 10 or when the power button or the service mode switch button is pressed in the service mode of the second module 20.

Accordingly, at the time t2, the second module 20 processes the received power key value whenever the signal state of the PWR_CTRL GPIO is changed and notifies the key process task.

Subsequently, at time t3, the key process task of the second module 20 changes the state of PWR_STAT, which is a GPIO Z port indicating a service / standby state, to an active state (0) or a standby state (1). Let's go.

At this time, the first module 10 detects the active / standby state of the second module 20 through PWR_STAT and processes the content as follows.

First, when the first module 10 is in the service mode, when the PWR_STAT is changed to the active state (0) as a result of service switching, the first module 10 switches the service mode to the second module 20. .

When the state of the PWR_STAT is changed, the first module 10 controls the output of the power LED according to the case of Table 2 described above.

FIG. 10 shows a timing diagram when the second module 20 is turned on in the standby state.

As shown in FIG. 10, when a scheduled on time of the second module 20 is reached at a time t1, a power key event is applied to a key process task of the second module 20 at a time t2. ) Is passed.

Subsequently, at a time t3, a key process task of the second module 20 changes the state of PWR_STAT to an active state (0) at the GPIO Z port.

Accordingly, at time t4, the first module 10 does not change the state of the PWR_CTRL GPIO when the PWR_STAT of the second module 20 is in an active state (0) and the BOOT_STAT is in the boot completion state (0).

FIG. 11 is a timing diagram when reservation on of the second module 20 occurs in the service mode of the first module 10, and FIG. 12 is case of canceling reservation on of the second module 20 in FIG. Timing diagram.

As shown in FIG. 11, when the scheduled on time of the second module 20 is reached at a time t1, a power key event is applied to a key process task of the second module 20 at a time t2. Event) is delivered.

Subsequently, at time t3, a key process task of the second module 20 changes the state of PWR_STAT to the active state (0) at the GPIO Z port.

Subsequently, at time t4, the first module 10 does not change the state of the PWR_CTRL GPIO when the PWR_STAT of the second module 20 is in the active state (0) and the BOOT_STAT is the boot completion state (0).

Subsequently, when the first module 10 displays the dialog box informing that the reservation of the second module 20 is turned on at time t5, two processes are performed as follows according to a user's selection.

That is, as shown in FIG. 11, when the user selects viewing of the second module 20 at time t6, the first module 10 changes the service mode state to the second module 20 at time t7.

However, when the user cancels viewing of the second module 20 and continues to select the first module 10 mode at a time t6 as shown in FIG. 12, the first module 10 is a second module at time t7. In order to make (20) stand by, the state of PWR_CTRL is changed.

Accordingly, at time t8, the second module 20 detects a state change of PWR_CTRL and changes to the standby state 1.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the scope of the present invention attached to the scope of the claims. will be.

According to the present invention, the service state is controlled by using a general-purpose input / output port (GPIO) between modules providing different independent services. This is normally done and the output state of the power LED according to this also has the effect of operating normally.

Claims (15)

In the heterogeneous inter-module service control system, A first module for controlling a power control signal generated according to a user input signal; And a second module transmitting power state information changed according to booting state information and a power control signal transmitted from the first module during booting. The first module is heterogeneous module service control system, characterized in that for controlling the output state of the power lamp by detecting the boot state information and power state information transmitted from the second module. The method of claim 1, When the first module is in a service state and the second module is in an active state and the first module and the second module are simultaneously booted, the second module changes the power state information from an active state to a standby state. A heterogeneous inter-module service control system. The method of claim 1, When the first module is in a service state and the first module and the second module are booted at the same time while the second module is in the standby state, the second module changes the power state information from the active state to the standby state. A heterogeneous inter-module service control system. The method of claim 1, When the second module is in a service state and the first module and the second module are simultaneously booted while the second module is in an active state, the second module changes the power state information from a standby state to an active state. A heterogeneous inter-module service control system. The method of claim 1, When the first module is in a service state and only the second module is reset and rebooted, the second module changes the power state information from an active state to a standby state. The method of claim 1, And when the second module is reset in a service state and rebooted, the second module changes the power state information from a standby state to an active state. The method of claim 1, The first module is a service control system between heterogeneous modules, characterized in that for switching the service module according to the power state information of the second module. The method of claim 7, wherein The first module is a heterogeneous service control system, characterized in that for switching the service module to the second module when the power state information of the second module is an active state. The method of claim 8, When the first module and the second module is in the standby state, the first module is a heterogeneous service control system between the different modules, characterized in that for controlling the light emitter having a first color of the power lamp to emit light. The method of claim 8, When any one of the first module and the second module is in an active state, the first module controls the inter-module heterogeneous service control system so that the light emitting body having the second color of the power lamp can be emitted . The method of claim 1, And the second module changes the power state information to an active state when a reserved on signal is generated in a standby state. The method of claim 1, The first module is a heterogeneous service control system, characterized in that when the reservation on signal of the second module is generated in the service state, the first module changes the service module according to whether the user selects the reservation viewing. The method of claim 12, The first module changes the service module to the second module when the user selects the reserved viewing. The method of claim 12, And the second module changes the power state information to a standby state according to a change of a power control signal transmitted from the first module when the user cancels the reserved viewing. In the heterogeneous module service control method, A process of controlling, by the first module, a power control signal generated according to a user input signal; Transmitting boot state information and power state information changed according to a power control signal of the first module when the second module is booted to the first module; And controlling the output state of the power lamp by detecting boot state information and power state information transmitted from the second module by the first module.

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