WO2004027609A1 - Method for achieving multifuncional embedded system - Google Patents

Abstract

A method for achieving multifunctional embedded system at least comprises the steps of: boot a computer; activate BIOS, and record function key code pressed by an user; if the user doesn't press any function key, activate PC's operating system, and then end the start-up process; otherwise, activate embedded operating system corresponding to the function key code in according to the recorded function key code, and then activate the function software corresponding to the function key code. The present invention achieves a multifunctional embedded system on PC hardware architecture, and realizes multiple applications on a single system while ensuring the reliable and stable running of the embedded operating system, therefore makes full use of hardware resource and realizes multiple purposes on a single machine and achieves multifunction of the system; and achieves multifunction boot at start-up.

Description

 Implementation method of multifunctional embedded system

Technical field

 The present invention relates to a method for implementing a multifunctional embedded system, and in particular, to the realization of a multifunctional embedded system that realizes multiple applications or multifunctional guidance on one system on the basis of ensuring stable and reliable operation of the embedded system. method. Background of the invention

 The development of computer technology makes the integration of computers and household appliances more and more obvious. Appropriately adding corresponding hardware to existing computers or running some software can provide the functions of household appliances, such as: playing video discs, audio discs, photo browsing, reading e-books, game entertainment, and so on.

 However, using a computer to perform the functions of a home appliance has some inconveniences. Because, usually, the computer's startup operation is relatively long, and more operations are needed to start the corresponding home appliance function. Compared to general appliances that provide only a single function but are simple to operate, the operation of a computer is more cumbersome. Referring to FIG. 1, it is an indispensable operation step when a general user uses a computer to play a television program.

 In view of the above problems, the industry has put forward more effective technical solutions to solve the above problems after continuous efforts: install an embedded operating system in the computer; and make the computer automatically start the preset or The loaded function application software can reduce a lot of operations for the user, so that the user can operate the computer like a normal household appliance to provide corresponding home appliance functions. Referring to FIG. 2, which is an improved operation of the computer when playing a television program, it can be seen that once the computer is turned on, the user can directly watch the television program without further operations.

Embedded systems are those devices that have specific functions, small size, low power, A specially designed operating system. In order to ensure the stability and reliability of the system, an embedded system generally completes only one or one function. This caused a waste of hardware resources to some extent.

 If multiple embedded applications are implemented on the same hardware on the basis of considering the application, the use efficiency of the hardware can be greatly improved. For example: TV is a single function. The user uses the TV function to use the TV function, which is very wasteful in terms of utilization. If the corresponding functions such as photo browsing are integrated without increasing the cost, the application of the embedded system can be appropriately expanded.

 Generally, the hardware platform of the embedded system is fixed. For example, the CPU frequency rises from 1G to 2G. The main chipset of the motherboard needs to be updated in order to provide users with better and higher performance PCs. If the TV function has been designed on the PC architecture, as the graphics card or sound card is upgraded, as long as the hardware architecture and driver are slightly changed, it can be provided to the user's TV function.

 The development of an embedded operating system on a hardware platform with a PC architecture is a completely new concept. Combining an open hardware architecture with a relatively closed software system is a completely new topic, and it also provides the possibility for subsequent development. Ordinary computers are just a unified body of platform computers and operating system platforms, and the computers are unified by general computers + functional computers. At present, there is no corresponding technology. Summary of the Invention

 An object of the present invention is to provide a method for implementing a multifunctional embedded system, that is, designing a multifunctional embedded system on a platform of a PC hardware architecture, and on the basis of ensuring stable and reliable operation of the embedded system, in a system Realize multiple applications on the Internet, make full use of hardware resources, and realize multi-purpose of one machine and multi-function of the system.

Another object of the present invention is to provide a method for implementing a multifunctional embedded system. Achieve multi-functional guidance at the boot entrance.

 The object of the present invention is achieved as follows:

 A method for implementing a multifunctional embedded system includes at least:

 Step A: Turn on the computer;

 Step B: The BIOS starts to determine whether a function key is typed. If no function key is typed, the platform operating system is started and the boot is completed. If a function key is typed, the function key code is recorded while the BIOS is started;

 Step C: Start the embedded operating system corresponding to the function key code according to the recorded function key code;

 Step D: Start the function software corresponding to the function key code.

 The above step A specifically includes:

 Step A1: After the computer is turned on, it automatically detects the status information when it is turned on;

 Step A2: If the computer is already in a normal working state, shut down the computer; Step A3: If the computer is in hibernation, restore the state before the computer was hibernated; Step A4: If the computer is off, start the computer.

 The aforementioned embedded operating system is one or more, and is simultaneously stored in a storage device of a computer, and the embedded operating system corresponds to one or more functional software. A method for implementing a multifunctional embedded system includes at least:

 Step A: Turn on the computer;

 Step B: BIOS startup;

 Step C: Start the embedded operating system kernel;

Step D: Determine whether a function key is typed. If no function key is typed, the platform operating system is started, and the startup is completed. If a function key is typed, the typed function key code is recorded while the BIOS is started; Step E: perform function scheduling processing according to the recorded function key code; Step F: start function software corresponding to the function key code according to the result of the function scheduling process. The above step A specifically includes:

 Step A1: After the computer is turned on, it automatically detects the status information when it is turned on;

 Step A2: If the computer is already in a normal working state, shut down the computer; Step A3: If the computer is in hibernation, restore the state before the computer was hibernated; Step A4: If the computer is off, start the computer.

 The scheduling process is specifically: switching between different function applications under the same embedded operating system kernel, and completely closing the old function application while starting the new function application.

 The embedded operation kernel corresponds to one or more functional software.

 The invention designs a multifunctional embedded system on the platform of the PC hardware architecture. On the basis of ensuring the stable and reliable operation of the embedded system, multiple applications are implemented on one system, the hardware resources are fully utilized, and one Multi-function of the machine and multi-function of the system; And multi-function guidance of the boot entrance is realized. Brief description of the drawings

 FIG. 1 is a schematic diagram of a specific process for starting a function application in the prior art.

 FIG. 2 is a schematic diagram of another specific process for starting a function application in the prior art.

 FIG. 3 is a flowchart of an embodiment of the present invention.

 FIG. 4 is a flowchart of another embodiment of the present invention.

 FIG. 5 is a flowchart of status determination during the computer startup process according to the present invention. Mode of Carrying Out the Invention

 The present invention is described in detail below with reference to the drawings.

Example 1: Referring to FIG. 3 and FIG. 5, an implementation manner of the present invention is: setting different identifiers for different startup buttons or function keys, and at boot time, different embedded function systems are guided by judging the identifiers, that is, an embedded operating system + Corresponding function application software, and then choose to execute specific application function software according to the function key pressed.

 Since the implementation of each functional application corresponds to an application program based on the embedded operating system, the functional application needs to be highly coupled with the embedded operating system kernel and hardware drivers. In the design, the specificity of the embedded operating system for functional applications and the generality of the PC hardware platform can be considered to achieve fast startup and outstanding functional application. For example, for the TV function, the network card and the modem hardware in the computer can be shielded, and the corresponding driver can not be connected, so that it can provide good functions in the stability of startup time.

 Corresponding to the above-mentioned embedded function system, the storage medium is the hard disk space on the PC platform, and the hard disk space may be in a partition or in an area specially opened for corresponding applications. Each embedded function system is stored independently in the corresponding hard disk space. In this way, when the user proposes a new functional requirement, the newly designed embedded functional system is simply loaded into the hard disk space.

 Realizing the above specific technical solution includes the following steps:

 Step 100: the computer is turned on;

 Step 110: The BIOS starts and records the function key code pressed by the user.

 Step 120: if the user does not press any function key, start the platform operating system; the startup is completed;

 Step 130: Start the embedded operating system corresponding to the function key code according to the recorded function key code.

 Step 140: Start the function software corresponding to the function key code.

 The above step 100 specifically includes:

Step 101: Automatically detect status information when the computer is turned on after the computer is turned on; Step 102: If the computer is already in a normal working state, shut down the computer; Step 103: If the computer is in a hibernation state, restore the state before the computer was hibernated; Step 104: If the computer is in a shutdown state, start the computer.

 The aforementioned embedded operating system is one or more, and is simultaneously stored in a storage device of a computer, and the embedded operating system corresponds to one or more functional software.

 Generally, after the normal self-test of the system is completed, the BIOS reads the first sector information of track 0 of the hard disk and loads it into memory for execution, thereby booting the normal operating system, in order to implement applications under the multi-embedded operating system. Therefore, the BIOS must be appropriately modified, that is, the judgment is made after the computer self-test is completed. If the user desires to start the embedded system, read the startup program code set at another fixed position of the hard disk (for example, the end sector of the hard disk) ( Bootload program). The bootload program reads the registered function code and then goes to the hard disk storage location of the corresponding functional system to guide the corresponding embedded system kernel. The system chooses to directly read the register in the BIOS without user intervention at this time. Function code. In the storage area of the hard disk, the data of these corresponding embedded function systems are stored independently.

 After the bootload program finishes the kernel of an embedded operating system, all the work is the same as the general embedded operating system, and the corresponding functional applications can be run. For users, all they see is the current embedded system.

 This method is mostly used in embedded operating systems with large differences in embedded applications. The requirements for the drivers and related supporting programs required to run the applications are different. For example: one application is a multimedia-oriented application that requires multiple hardware support such as a sound card, video card, remote control, etc .; another application is only practical as a dumb terminal. The above methods can not only guarantee the performance of the system, but also take into account the differences in application performance and control methods.

 Example 2:

Referring to FIG. 4 and FIG. 5, another implementation manner of the present invention is: First, an embedded operating system is set for all functional applications, and a phase design is directly performed on the embedded operating system. Corresponding functional applications are relatively independent, but because they are based on a unified embedded operating system platform at the same time, they are universal and can be switched and directly used by the internal direct dispatcher.

 Similarly, each functional application is highly coupled with the embedded operating system kernel and hardware drivers. In the design, the specificity of the embedded operating system for functional applications and the generality of the PC hardware platform can be considered to achieve fast startup and outstanding functional application. For example, for the TV function, the network card and the modem hardware in the computer can be shielded, and the corresponding driver can not be connected, so that it can provide good functions in the stability of startup time.

 Corresponding to the above-mentioned embedded function system, the storage medium is the hard disk space on the PC platform, and the hard disk space may be in a partition or an area specially opened for corresponding applications. Each embedded function system is stored independently in the corresponding hard disk space. In this way, when the user proposes a new functional requirement, the newly designed embedded functional system is simply loaded into the hard disk space.

 Realizing the above specific technical solution includes the following steps:

 Step 200: the computer is turned on;

 Step 210: The BIOS starts and records the function key code pressed by the user.

 Step 220: Start the embedded operating system kernel;

 Step 230: if the user does not press any function key, start the platform operating system; the startup ends;

 Step 240: perform function scheduling processing according to the recorded function key codes;

 Step 250: Start the function software corresponding to the function key code according to the result of the function scheduling process.

 The above step 200 specifically includes:

 Step 201: After the computer is turned on, it automatically detects status information when it is turned on;

Step 202: If the computer is already in a normal working state, shut down the computer; Step 203: If the computer is in the hibernation state, restore the state before the computer is in hibernation; Step 204: If the computer is in the off state, start the computer.

 The scheduling process is specifically: switching between different function applications under the same embedded operating system kernel, and completely closing the old function application while starting the new function application.

 The embedded operation kernel corresponds to one or more functional software.

 When the BIOS is started, the method is the same as the method in Embodiment 1, except that:

The bootload program does not select multiple operating systems, but only passes the boot parameter table in the BIOS (the parameter form is mainly transmitted through the content shared with a segment from 0000 to F000), and starts the embedded operating system.

 Through the data channel of dynamic data form, the data interaction between the BIOS and the embedded operating system is directly established. The dynamic form can include the following specific content:

When the kernel of the embedded operating system is started, it will immediately start a main control program, which will judge the parameter values in the data sheet and start different applications, so as to achieve the multifunctionality of the embedded operating system at the application level. application. For example: You can replace the first user process in the system with another program (the / sbin / init program in Linux), and use it to Judge the logo of the program startup. You can also design a monitoring program. The system starts the monitoring program first, and then it determines which application to start.

 This method is more suitable for functional applications of similar types, or even requiring instant switching at the user level; as long as a simple monitoring program and a corresponding application startup driver are compiled, it can be implemented. For example: In the two applications of multimedia playback and photo browsing, they all have the same requirements on the system hardware, namely: sound card, video card and remote control; in this case, it is reasonable to implement multiple applications in the same operating system; The user can make the computer appear as a multimedia machine or an electronic photo album at any time. The storage structure of this method is relatively simple, which is equivalent to an operating system carrying multiple application programs.

Claims

Claim  1. A method for implementing a multifunctional embedded system, which is characterized in that it includes at least: Step A: starting a computer;  Step B: The BIOS starts to determine whether a function key is typed. If no function key is typed, the platform operating system is started and the boot is completed. If a function key is typed, the function key code is recorded while the BIOS is started;  Step According to the recorded function key code, start the embedded operating system corresponding to the function key code;  Step D: Start the function software corresponding to the function key code.  2. The method for implementing a multifunctional embedded system according to claim 1, wherein the step A specifically comprises:  Step A1: After the computer is turned on, it automatically detects the status information when it is turned on;  Step A2: If the computer is already in a normal working state, shut down the computer; Step A3: If the computer is in hibernation, restore the state before the computer was hibernated; Step A4: If the computer is off, start the computer.  3. The method for implementing a multifunctional embedded system according to claim 1, characterized in that: there are one or more embedded operating systems, and they are simultaneously stored in a storage device of a computer.  4. The method for implementing a multifunctional embedded system according to claim 1, wherein the embedded operating system corresponds to one or more functional software.  5. A method for implementing a multifunctional embedded system, characterized in that it includes at least: Step A: the computer is turned on;  Step B: BIOS startup; Step C: Start the embedded operating system kernel; Step D: Determine whether a function key is typed. If no function key is typed, the platform operating system is started, and the startup is completed. If a function key is typed, the typed function key code is recorded while the BIOS is started;  Step E: Perform function scheduling processing according to the recorded function key codes;  Steps According to the result of the function scheduling process, start the function software corresponding to the function key code. 6. The method for implementing a multifunctional embedded system according to claim 5, characterized in that the step A specifically comprises:  Step A1: After the computer is turned on, it automatically detects the status information when it is turned on;  Step A2: If the computer is already in a normal working state, shut down the computer; Step A3: If the computer is in hibernation, restore the state before the computer was hibernated; Step A4: If the computer is off, start the computer.  7. The method for implementing a multifunctional embedded system according to claim 5, characterized in that: said scheduling processing is: switching between different functional applications under the same embedded operating system kernel, while starting a new functional application, Close the old feature app completely.  8. The method for implementing a multifunctional embedded system according to claim 5, characterized in that: the embedded operation kernel corresponds to one or more functional software.