CN101452417B - Monitoring method and monitoring device thereof - Google Patents

Abstract

The present invention is a monitoring method and a monitoring device thereof, which are used to monitor the connection port of the USB interface of a computer system. The monitoring device includes an input/output control unit and a basic input/output system program code storage unit. The basic input/output system program code storage unit is used to store basic input/output system program codes. The monitoring method includes: executing the basic input/output system program code; determining whether the connection port of the USB interface is connected to a USB interface device; if the connection port of the USB interface is connected to the USB interface device, reading an identification code of the USB interface device; determining whether the identification code is a verified identification code; and if not, performing corresponding processing.

Description

Monitoring method and monitoring device thereof

technical field

The invention relates to a monitoring device, in particular to a monitoring device for monitoring a USB interface connection port.

Background technique

With the advancement of technology, the expandable devices of the computer system are becoming more and more diversified, and users can also set and modify the computer system by themselves. The expansion device may include a network card, a bluetooth transmission card, or a network camera expansion card. The expansion device can use a bus such as a PCI interface connection port or a USB interface connection port to transmit signals to the computer system. However, when the user installs or configures the expansion device on the computer system by himself, he may use an unauthenticated expansion device, or change the original setting of the expansion device by himself. If an expansion device that has not been authenticated or whose settings have been changed is installed into the computer system, the computer system may be damaged or unexpected errors may occur. In this way, it will consume a lot of time or money to repair the computer system.

In the prior art, there is already a monitoring device for monitoring expansion devices suitable for PCI interfaces. However, as expandable devices become more and more diversified, it may not be able to bear the load if only the connection port of the PCI interface is used. Therefore, some expansion devices are configured to use the connection port of the USB interface to transmit data. However, in the prior art, there is no monitoring device and method for monitoring the expansion device of the USB interface.

In view of the deficiencies of the prior art, there is a need for a new monitoring device and method to solve the deficiencies of the prior art.

Contents of the invention

The main purpose of the present invention is to provide a monitoring device with the effect of monitoring the connection port of the USB interface of the computer system.

Another main object of the present invention is to provide a monitoring method.

To achieve the above purpose, the monitoring device of the present invention is used in a computer system to monitor a connection port of a USB interface. The monitoring device includes an I/O control unit, a basic I/O system program code storage unit and a database. The BIOS program code storage unit is electrically connected to the I/O control unit for storing the BIOS program code. The database is used for storing the identification code correspondence table. Wherein the I/O control unit is used to execute the basic I/O system program code to read the identification code of the USB interface device when the connection port of the USB interface is connected to the USB interface device. And comparing the identification code with the corresponding table of identification codes to check whether the identification code is a verified identification code.

The monitoring method of the present invention comprises the following steps: executing the basic input/output system program code; judging whether the connection port of the USB interface is connected to the USB interface device; if the connection port of the USB interface is connected to the USB interface device, then reading the identification code of the USB interface device; Judging whether the identification code is a verified identification code; and if not, performing corresponding processing on the computer system.

Description of drawings

Fig. 1 is a system block diagram of a computer system and a monitoring device of the present invention.

Fig. 2 is a flowchart of the steps of the monitoring method of the present invention.

Fig. 3 is a schematic diagram of an identification code correspondence table in the present invention.

Detailed ways

In order to make the above and other objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1 which is a system block diagram of the computer system and monitoring device of the present invention.

The monitoring device 10 of the present invention is set in a computer system 90 , and the computer system 90 has a connection port 91 of a USB interface. In this embodiment, the monitoring device 10 can be implemented as a module that can be selectively assembled on the main board (not shown) of the computer system 90 . The connection port 91 of the USB interface is a connection port for transferring data by using the USB bus, such as a slot (Slot) of the USB interface. The connection port 91 of the USB interface can be used to install the corresponding USB interface device 50 . In one embodiment of the present invention, the computer system 90 can be a notebook computer, but the present invention is not limited thereto, any other devices (such as desktop computers) as long as they include the structure shown in Figure 1, all belong to the present invention 90 categories of computer systems.

The monitoring device 10 has an I/O control unit 20, a Basic Input/Output System (BIOS) program code storage unit 30 and a database 40, and the above components are electrically connected to each other. The I/O control unit 20 can be a south bridge chip of the computer system 90, but the present invention is not limited thereto. The BIOS program code storage unit 30 can be a flash memory for storing the BIOS program code 31 , but the invention is not limited thereto. The basic input and output system program code 31 has the necessary programs required for the computer system 90 to perform Power On Self Test (POST), including the monitoring program for the connection port 91 of the USB interface. The database 40 is used for storing the identification code correspondence table 41 . The identification code corresponding table 41 is set with the verified identification code for comparison with the identification code 51 of the USB interface device 50 .

The USB interface device 50 can be a network card, a bluetooth transmission card and other devices that need to transmit data through the bus of the USB interface. The USB interface device 50 is set with its exclusive identification code 51, and the identification code 51 may include a product identification code (Product ID) 51a and a vendor identification code (Vendor ID) 51b, but the present invention is not limited thereto. When the computer system 90 is turned on, the I/O control unit 20 can monitor the computer system 90 by executing the monitoring program of the basic I/O system program code 31 . The I/O control unit 20 can read the identification code 51 of the USB interface device 50 and query the identification code corresponding table 41 to determine whether the identification code 51 is a verified identification code. The monitoring method will be described in detail later.

Next, please refer to FIG. 2 for a flow chart of the steps of the monitoring method. It should be noted here that although the monitoring device 10 is used as an example to describe the monitoring method of the present invention, the monitoring method of the present invention is not limited to be used in the monitoring device 10 .

First proceed to step 201: execute the BIOS program code.

When the computer system 90 is turned on, the BIOS program code 31 will be executed to perform a boot self-check, thereby checking the hardware status of the computer system 90 .

Then proceed to step 202: determine whether the connection port of the USB interface is connected to the USB interface device.

At this time, the I/O control unit 20 will check whether the connection port 91 of the USB interface is connected to the USB interface device 50, that is, whether the USB interface device 50 is inserted into the slot of the USB interface. Because the address of the connection port 91 of the USB interface is fixed, the I/O control unit 20 can confirm whether the connection port 91 of the USB interface is connected with the USB interface device 50 by sending a signal to the address of the connection port 91 of the USB interface. If the connection port 91 of the USB interface is connected with the USB interface device 50 , go to step 203 . If not, the I/O control unit 20 ends the monitoring procedure for the connection port 91 of the USB interface.

Step 203: Read the identification code of the USB interface device.

At this time, the I/O control unit 20 uses the basic I/O system program code 31 to read the identification code 51 of the USB interface device 50 . In an embodiment of the present invention, the I/O control unit 20 reads out the product identification code 51 a and the manufacturer identification code 51 b of the USB interface device 50 .

Then go to step 204: determine whether the identification code is in the identification code correspondence table.

Then please also refer to FIG. 3 for a schematic diagram of the identification code correspondence table of the present invention. After reading the product identification code 51a and the manufacturer identification code 51b, the I/O control unit 20 inquires the identification code correspondence table 41 in the database 40, thereby judging whether the product identification code 51a and the manufacturer identification code 51b are the identification code correspondence table 41 has been verified identification code. For example, if the product identification code 51a read in step 203 is 0400, the manufacturer identification code 51b is 040a. Then compare it with the verified identification code set in the identification code correspondence table 41, you can know that the product identification code 51a and the manufacturer identification code 51b are all listed in the identification code correspondence table 41. . In this way, it means that the USB interface device 50 has passed the verification, and the procedure of the monitoring method can be ended. If the product identification code 51 a and the manufacturer identification code 51 b are not listed in the identification code corresponding table 41 , go to step 205 .

It should be noted here that the identification codes listed in the identification code correspondence table 41 in FIG. 3 are only for illustration, and the present invention is not limited to the identification codes listed in FIG. 3 .

Step 205: Perform corresponding processing on the computer system or limit the use of the USB interface device.

If the product identification code 51a or the manufacturer identification code 51b is not in the verified identification codes set in the identification code correspondence table 41, it means that the USB interface device 50 is not up to standard or other non-verified devices. At this time, in order to prevent the USB interface device 50 from causing damage to the computer system 90 , the I/O control unit 20 will immediately execute the basic I/O system program code 31 to perform corresponding processing. The corresponding processing may include stopping the boot process of the computer system 90 or restricting the usage of the USB interface device 50 . Wherein, restricting the use of the USB interface device 50 is to restrict certain functions of the USB interface device 50 or directly block the USB interface device 50 . And finally, an error message may be displayed on the screen of the computer system 90 to inform the user, but the present invention is not limited to the above processing flow.

It should be noted here that the monitoring method of the present invention is not limited to the order of the above steps, as long as the purpose of the present invention can be achieved, the order of the above steps can also be changed.

By means of the above method, it is possible to prevent the computer system 90 from being damaged by inserting the non-compliant or incompatible USB interface device 50 into the computer system 90 .

To sum up, the present invention has features that are quite different from the prior art in terms of purpose, means and efficacy. However, it should be noted that the above-mentioned embodiments are only examples for convenience of description, and the scope of rights claimed by the present invention should be determined by the claims of the present application, rather than being limited to the above-mentioned embodiments.

Claims (14)

1. A monitoring device, comprising: an input-output control unit; and A basic input-output system program code storage unit, which is electrically connected with the input-output control unit for storing a basic input-output system program code; wherein the input-output control unit is connected to a USB interface device at a connection port of a USB interface When, it is used to execute the BIOS program code to read an identification code of the USB interface device, and check whether the identification code is a verified identification code. 2. The monitoring device according to claim 1, wherein the identification code comprises a product identification code or a manufacturer identification code. 3. The monitoring device according to claim 1, further comprising a database for storing an identification code correspondence table, and the input-output control unit utilizes the identification code correspondence table to check whether the identification code is the verified identification code. 4. The monitoring device according to claim 1, wherein the I/O control unit is a south bridge chip. 5. A monitoring method, the method comprising: Executing a BIOS program code in a BIOS program code storage unit of a computer system; judging whether a connection port of a USB interface is connected to a USB interface device; If the connecting port of the USB interface is connected to the USB interface device, an I/O control unit executes the basic I/O system program code to read an identification code of the USB interface device, and the I/O control unit and the basic I/O The system program code storage unit is electrically connected; judging whether the identification code is a verified identification code; and If not, perform a corresponding process. 6. The monitoring method according to claim 5, wherein the step of performing the corresponding processing comprises stopping a boot process of the computer system. 7. The monitoring method according to claim 5, wherein the step of performing the corresponding processing comprises displaying an error message. 8. The monitoring method according to claim 5, wherein the step of performing the corresponding processing comprises restricting the use of the USB interface device. 9. The monitoring method according to claim 5, wherein the step of judging whether the identification code is the verified identification code comprises judging whether the identification code is in an identification code correspondence table. 10. The monitoring method according to claim 5, wherein the identification code comprises a product identification code or a manufacturer identification code. 11. A computer system comprising: A connecting port of a USB interface for connecting a USB interface device; and A monitoring device is electrically connected to the connection port of the USB interface, and the monitoring device includes: an input-output control unit; and A basic input-output system program code storage unit is electrically connected with the input-output control unit to store a basic input-output system program code; it is characterized in that the input-output control unit is connected to the USB port of the USB interface When the interface device is used, it is used to execute the BIOS program code to read an identification code of the USB interface device, and check whether the identification code is a verified identification code. 12. The computer system according to claim 11, wherein the identification code comprises a product identification code or a manufacturer identification code. 13. The computer system according to claim 11, wherein the monitoring device further includes a database for storing an identification code correspondence table, and the input-output control unit uses the identification code correspondence table to check whether the identification code is is the authenticated identifier. 14. The computer system according to claim 11, wherein the I/O control unit is a south bridge chip.

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