CN100568202C - Control method for sharing server by peripheral equipments of computer - Google Patents

Abstract

The invention provides a computer peripheral equipment sharing server control method. The computer peripheral equipment sharing server is composed of a microprocessor and multiple or multiple communication interfaces; the sharing server is connected with a computer located in a different place through a local area network or an Internet network. The method of the invention can greatly reduce the investment on peripherals, save costs, and can also improve the utilization rate of equipment, which will bring great economic value.

Description

Computer Peripheral Equipment Shared Server Control Method

technical field

The invention relates to a control method for peripherals shared and used by multiple computer-type devices, in particular to a control method for multiple computer-type devices to share and use the same peripheral device through a network.

Background technique

The development of network technology has made network resources cheaper, and the investment cost of network resources has also been reduced a lot. However, the development of peripheral devices is far behind the development of network technology, especially for some special peripheral devices. The stumbling block to use, therefore, how to provide a more economical, convenient and quicker equipment sharing method and device is a problem to be solved by the market and the industry.

Share the peripherals through the network for use by multiple computers. This brand-new peripheral solution can greatly reduce the investment in peripherals, save costs, and improve the utilization rate of equipment, which will bring great economic value.

Contents of the invention

The purpose of the present invention is to provide a computer peripheral equipment sharing server control method,

The method forwards the operation and data of the computer to the peripheral device through the network technology to the shared server device itself, and then the shared server device sends the operation and data to the peripheral device, thereby realizing the function of the computer operating the remote peripheral device.

Another object of the present invention is to allow multiple computers to share and use the same peripheral device in time-sharing, and use software technology to realize the peripheral device request queue of multiple computers, so that each computer can use the same peripheral device in time-sharing.

Another object of the present invention is to allow multiple computers to use different peripherals at the same time, and the different peripherals connected to the device can be used by the same or different computers at the same time without interfering with each other.

Another object of the present invention is to allow users to control peripheral devices and obtain related information of peripheral devices through computers, such as applying for jobs, canceling jobs, and querying peripheral device information.

The computer peripheral device sharing server control method of the present invention is characterized in that: the computer peripheral device sharing server is composed of a microprocessor and multiple or multiple communication interfaces; the sharing server communicates with computers located in different places through a local area network or the Internet Connect; The described control method step is as follows:

(1) The user program starts to use the device through the virtual device driver;

(2) The virtual device driver notifies the virtual device guardian to request a job, and the virtual device guardian checks whether the physical device is ready to use, and if not, informs the virtual device management;

(3) The virtual device management requests jobs from the job queue through the physical device management;

(4) When the job is in turn, the job queue notifies the virtual device management through the physical device management, and the virtual device notifies the virtual device guardian;

(5) The user program uses the physical device indirectly through the virtual device driver -> virtual device guard -> physical device guard -> physical device driver -> physical device;

(6) After the user finishes using the device, the virtual device driver notifies the virtual device guardian, and the virtual device guardian requires the virtual device management to end the operation;

(7) The virtual device management requests the end of the job from the job queue through the physical device management;

(8) At the end of the operation, the virtual device management and physical device management release relevant resources after learning;

(9) End of equipment sharing.

The communication interface mentioned above includes one or more of a network interface, an RS232 serial interface, a parallel interface or a USB interface.

The above-mentioned computer peripheral equipment sharing server is also provided with a pluggable expansion interface module. Connect to the USB interface on the USB expansion module.

The hardware part of the present invention comprises:

1. Computer 25-pin parallel port interface circuit: the interface connecting the hardware part of the present invention with the parallel port peripherals;

2. Computer 9-pin RS232 interface circuit: the interface connecting the hardware part of the present invention with the serial port peripherals;

3. Computer USB interface circuit: the interface that the hardware part of the present invention is connected with USB peripherals;

4. Computer network interface circuit: the network interface of the hardware part of the present invention;

The software part of the present invention comprises:

1. System software: provide the most basic system functions of the present invention, which is the basis of each functional software below;

2. Virtual serial port driver: realize the virtual serial port under Windows and Linux, and forward the operation data of the serial port under Windows or Linux to the network;

3. Virtual parallel port driver: realize the virtual parallel port under Windows and Linux, forward the operation data of the serial port under Windows or Linux to the network;

4. Virtual USB bus driver: realize the virtual USB bus under Windows and Linux, and forward the operation data under the USB bus under Windows or Linux to the network;

5. Realization of the job queue function: set up a job queue for each peripheral connected to the invention, and realize the user's request and queuing for the peripheral;

6. Peripheral management and use client: provide connection server, user login, device query, job application, job cancellation, event notification functions;

7. Peripheral management and use of the server side: corresponding to the client side, it provides the functions of monitoring each client connection, user login verification, device status feedback, job application, job cancellation, and event notification;

The method of the invention can greatly reduce the investment on external devices, can save costs, can also improve the utilization rate of equipment, and will bring great economic value.

Description of drawings

Fig. 1 is a schematic diagram of the connection control flow of the present invention.

Fig. 2 is a schematic diagram of the software system architecture of the present invention.

Detailed ways

Various peripherals are connected to the hardware part of the present invention through the serial port, parallel port or USB port, configure various peripherals information and network parameters, plug in the Internet cable, connect the power supply, start the machine, the server end of the present invention monitors each client remote connection, the client connects to the server of the present invention through the network, applies for user login, the server performs user login verification, feeds back the verification result, the client verification is successful, sends a request for querying peripherals, the server enumerates the local peripherals, and sends each A peripheral device information is sent to the client. After the client receives each peripheral device information, it is displayed. The client receives user operation instructions, such as a job request for a certain peripheral device, and sends the request to the server. The server side Add a device request job to the device job queue. After the device request job is allowed, it will feed back to the client. After receiving the job request permission command, the client prompts the user to install the peripheral driver. For serial port peripherals, the client will ask the user to Install the serial port virtual driver. For parallel port peripherals, the user will be required to install the parallel port virtual driver. For USB devices, the user will be required to install the virtual driver of the USB peripheral. Install virtual drivers of different operating system versions according to the operating system used by the user. After the driver is installed, the user also needs to install the peripheral drivers for different peripherals. After the peripheral drivers are installed, the device can be used. When multiple clients apply for the same peripheral job request at the same time, the server will insert the job according to the priority. The request is inserted into the job queue. Only one job queue is allowed to run at a time, and other jobs must wait for its completion. In this way, multiple clients can share the device in time. When the client that is using the job sends a job cancellation request, the server will cancel the job and turn the first waiting job in the job queue into the job processing state, and the client can use the peripheral device. Each device has one job queue, each job queue is independent of each other and does not interfere with each other, so multiple peripherals can be used at the same time.

When the expansion module needs to be used, when the device sharing server is turned off, insert the required expansion module and fix it, then turn on the power supply of the device sharing server, the device sharing server will automatically recognize the inserted module, load the corresponding driver, and form a new serial port , parallel port or USB port, the external device is directly connected to the serial port, parallel port or USB port in the expansion module without adding any interface.

Shared mode using equipment (software):

The management layer is mainly responsible for job management, lower layer process management, status management, and provides user UI interface.

The communication layer is mainly responsible for forwarding virtual device operation commands and result messages to ensure normal connections.

The device layer is mainly responsible for the specific functions of the device and the job queuing function.

Equipment sharing process:

1. The user program starts to use the device through the virtual device driver;

2. The virtual device driver notifies the virtual device guardian to request a job, and the virtual device guardian checks whether the physical device is ready to use, and if not, informs the virtual device management;

3. Virtual device management requests jobs from the job queue through physical device management;

4. When the job's turn comes, the job queue notifies the virtual device management through the physical device management, and the virtual device notifies the virtual device guardian;

5. The user program uses the physical device indirectly through the virtual device driver -> virtual device guard -> physical device guard -> physical device driver -> physical device;

6. After the user finishes using the device, the virtual device driver notifies the virtual device guardian, and the virtual device guardian requires the virtual device management to end the operation;

7. The virtual device management requests the end of the job from the job queue through the physical device management;

8. At the end of the operation, the virtual device management and physical device management will release relevant resources after learning;

9. The end of equipment sharing.

Claims (3)

1, a kind of computer peripheral equipment shared server control method, it is characterized in that: described computer peripheral equipment shared server is made up of microprocessor and multiple or multiple communication interfaces; connected; the steps of the control method are as follows: (1) The user program starts to use the physical device of the shared server through the virtual device driver; (2) The virtual device driver notifies the virtual device guardian to request a job, and the virtual device guardian checks whether the physical device of the shared server can be used, and if not, informs the virtual device management; (3) The virtual device management requests jobs from the job queue through the physical device management of the shared server; (4) When the job is in turn, the job queue notifies the virtual device management through the physical device management, and the virtual device management notifies the virtual device guardian; (5) The user program indirectly uses the physical device of the shared server through the virtual device driver -> virtual device guard -> physical device guard -> physical device driver -> physical device of the shared server; (6) After the user finishes using the device, the virtual device driver notifies the virtual device guardian, and the virtual device guardian requires the virtual device management to end the job; (7) The virtual device management sends a job end command to the job queue through the physical device guard; (8) At the end of the operation, the virtual device management and physical device management release relevant resources after learning; (9) The shared use of the physical equipment of the shared server ends. 2. The computer peripheral device shared server control method according to claim 1, wherein the communication interface includes a network interface. 3. The computer peripheral device sharing server control method according to claim 2, characterized in that: the computer peripheral device sharing server is also provided with a pluggable expansion module, the microprocessor is connected with the pluggable expansion module, and can be After the plug-in expansion module is inserted, the corresponding driver is loaded to form a new serial port, parallel port or USB port, and the external device is directly connected to the serial port, parallel port or USB port in the expansion module.

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