CN104765637A - System for safely operating desktop application on monitor - Google Patents

System for safely operating desktop application on monitor Download PDF

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Publication number
CN104765637A
CN104765637A CN 201410002178 CN201410002178A CN104765637A CN 104765637 A CN104765637 A CN 104765637A CN 201410002178 CN201410002178 CN 201410002178 CN 201410002178 A CN201410002178 A CN 201410002178A CN 104765637 A CN104765637 A CN 104765637A
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system
hardware
monitor
desktop
application
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CN 201410002178
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Chinese (zh)
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李玲华
代海涛
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深圳迈瑞生物医疗电子股份有限公司
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Abstract

The invention provides a system for safely operating desktop application on a monitor. The system comprises a hardware virtualizer arranged between a Windows operating system of the monitor and physical hardware, wherein the hardware virtualizer is used for virtualizing hardware and controlling operation of virtual hardware and physical hardware. The Windows operating system of the monitor operates a desktop application on the virtual hardware and form a simulated PC system with the virtual hardware and the desktop application. A monitor system of the monitor is impendent of the Windows operating system and operates on the virtual hardware added for the physical hardware. By means of the system, the monitor system and the windows desktop application share physical hardware resources, and the complexity and cost of the system are reduced. Mutual separation can be also kept, and operation and abnormality of desktop application software do not influence the reliability and real-timeliness of the monitor system.

Description

一种在监护仪上安全运行桌面应用程序的系统 A system for the safe operation of desktop applications on the monitor

技术领域 FIELD

[0001] 本发明涉及医疗技术领域,尤其涉及一种在监护仪上安全运行桌面应用程序的系统。 [0001] The present invention relates to medical technology, and particularly relates to a system for safe operation of the desktop applications on a monitor.

背景技术 Background technique

[0002] 在监护仪上,为运行Windows桌面应用程序,多采取监护仪内置PC机,通过硬件技术使PC机和监护仪共用I个显示屏的方法。 [0002] on the monitor, to run Windows desktop applications, to take a more built-in PC, monitor, hardware technology allows PC and monitor I display a common method. 该技术需要监护仪包含2个主控CPU,I个为监护仪专用,另I个为PC专用。 This technique requires a monitor contains two main CPU, I dedicated one for the monitor, and the other I was a dedicated PC. 2个主控CPU方案的主要缺点有:成本高;整机体积或厚度增加不利于设计美观和轻便的产品;散热困难;Β0Μ内容多,维护量大;监护仪和PC机之间的数据交换困难。 The main disadvantage of the main CPU 2 solution: high cost; the whole volume or thickness and increase the aesthetic design is not conducive to portable products; cooling difficulties; Β0Μ contents, maintenance of large; data exchange between the monitor and the PC difficult.

[0003] 一般地,增加专用的硬件设备和软件功能模块可以解决监护仪和PC机的通信问题,但进一步增加了系统复杂度和成本,因此内置PC方案不是最优的。 [0003] In general, adding a dedicated hardware and software function modules can solve communication problems monitor and PC, but further increases the complexity and cost of the system, so the built-in PC program is not optimal. 一种替代方案是,只用I台PC,在PC上同时运行监护仪和Windows桌面应用程序;由于Windows操作系统本身是面向桌面和服务器领域的操作系统,实时性较差,难以满足监护仪的实时性要求,因此该方案可行性较低。 An alternative is, I only Taiwan PC, monitor and run Windows desktop applications simultaneously on a PC; Windows operating system itself is due for desktop and server operating system field, the real poor, difficult to meet monitors real-time requirements, and therefore lower the feasibility of the program.

发明内容 SUMMARY

[0004] 为解决上述技术问题,本发明通过在物理硬件上虚拟PC系统运行桌面应用软件,同时直接在物理硬件上运行监护仪系统。 [0004] In order to solve the above problems, the present invention through the virtual PC system to run desktop applications, and run directly on the physical hardware monitor systems on physical hardware. 本发明提供的技术方案具体如下: The present invention provides a technical solution as follows:

一种在监护仪上安全运行桌面应用程序的系统,包括: A system for the safe operation of the monitor on the desktop applications, including:

设置在所述监护仪的Windows操作系统和物理硬件之间的硬件虚拟器,所述硬件虚拟器用于虚拟出一虚拟硬件,并控制该虚拟硬件以及所述物理硬件的运行; Disposed between the Windows operating system and physical hardware monitors the hardware virtual device, the virtual hardware for a virtual hardware virtualized, and controlling the operation of the virtual and physical hardware of hardware;

所述监护仪的Windows操作系统在所述虚拟硬件上运行桌面应用程序,其与所述虚拟硬件和所述桌面应用程序构成PC系统;所述监护仪的监护仪系统独立于所述Windows操作系统,运行在所述物理硬件之上。 The monitor of the Windows operating system to run desktop applications on the virtual hardware, which constitutes the PC system hardware and the virtual desktop applications; monitors the monitor system is independent of the Windows operating system , runs on top of the physical hardware.

[0005] 其中,所述硬件虚拟器内置操作系统或使用外置的宿主操作系统。 [0005] wherein the hardware or operating system virtual built using external host operating system.

[0006] 其中,所述硬件虚拟器为虚拟机管理器,其虚拟出的虚拟硬件为虚拟机。 [0006] wherein said virtualizer is a hardware virtual machine manager, which virtualizes the virtual machine virtual hardware.

[0007] 其中,所述硬件虚拟器为仿真器,其虚拟出的虚拟硬件为仿真硬件。 [0007] wherein said virtualizer is a hardware emulator, a virtual its virtual hardware emulation hardware.

[0008] 其中,所述监护仪的监护仪系统与所述PC系统使用相互隔离的不同CPU。 [0008] wherein the monitor monitors the system and the PC systems use different CPU isolated from each other.

[0009] 其中,所述虚拟机管理器通过控制CPU使用时间配额的方式隔离所述监护仪系统与所述PC系统在不同的时间使用单路内核的同一CPU。 [0009] wherein the virtual machine manager quota usage time by the control of the CPU monitor mode isolation system and the PC system using the same single CPU core at different times.

[0010] 其中,所述虚拟机管理器通过将所述监护仪系统与所述PC系统运行的程序分别绑定在CPU的不同核心或不同的CPU的方式隔离所述监护仪系统与所述PC系统使用CPU。 [0010] wherein the virtual machine manager program by the system and the PC monitor operating system kernel or bound isolate different ways different CPU CPU monitor the system and the PC is system CPU.

[0011] 其中,所述监护仪的监护仪系统与所述PC系统使用存储空间相互隔离的外部存储器。 [0011] wherein the monitor monitors the system and the PC system memory space isolated using external memory.

[0012] 其中,所述监护仪的监护仪系统与所述PC系统使用接口相互隔离的网络控制器。 [0012] wherein the monitor monitors the system and the system using an interface isolated PC network controller.

[0013] 其中,所述监护仪的监护仪系统与所述PC系统共享或独立使用屏幕或输入设备。 [0013] wherein the monitor monitors the system and the PC system using shared or separate screen or an input device.

[0014] 实施本发明,监护仪系统和windows桌面应用程序既共享了物理硬件资源,降低了系统复杂度和成本;又能保持相互隔离,使得桌面应用软件的运行和异常不会影响监护仪系统的可靠性和实时性。 [0014] The embodiment of the present invention, the system monitors both desktop applications and windows share physical hardware resources, reducing the complexity and cost of the system; while maintaining mutual isolation, such desktop applications running and does not affect the abnormal Monitor System reliability and timeliness.

附图说明 BRIEF DESCRIPTION

[0015] 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。 [0015] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, briefly introduced hereinafter, embodiments are described below in the accompanying drawings or described in the prior art needed to be used in describing the embodiments the drawings are only some embodiments of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive from these drawings other drawings.

[0016] 图1为本发明提供的一种在监护仪上安全运行桌面应用程序的系统实施例一的结构图。 One kind of the present invention provides [0016] FIG. 1 is a configuration diagram of the embodiment of the system security application running on a desktop monitor.

[0017] 图2为本发明提供的一种在监护仪上安全运行桌面应用程序的系统实施例二的结构图。 [0017] FIG 2 one kind of the present invention provides a configuration diagram according to a second embodiment of the system in the safe operation of the application on a desktop monitor.

[0018] 图3为本发明提供的一种在监护仪上安全运行桌面应用程序的系统实施例三的结构图。 [0018] FIG. 3 is one kind of the present invention provides a configuration diagram of a system according to a third embodiment of the security application running on a desktop monitor.

[0019] 图4为本发明提供的一种在监护仪上安全运行桌面应用程序的系统的工作流程实施例一的流程图。 [0019] FIG. 4 one kind of the present invention provides a flow diagram of a monitor on the safe operation of the workflow system desktop application embodiment.

[0020] 图5为本发明提供的一种在监护仪上安全运行桌面应用程序的系统中为虚拟机分配资源的结构图。 [0020] FIG. 5 is provided on an inventive monitor the safe operation of a desktop application in the virtual machine is a configuration diagram of the allocation of resources.

[0021] 图6、图7为本发明提供的一种在监护仪上安全运行桌面应用程序的系统中的CPU隔离的流程图。 [0021] FIG. 6, FIG. 7 is a flowchart of a method of providing on a monitor the safe operation of the desktop application of the present invention isolated a CPU.

[0022] 图8为本发明提供的一种在监护仪上安全运行桌面应用程序的系统中的从虚拟机中的Windows应用程序到物理硬件的一次完整访存操作过程示意图; [0022] FIG. 8 is one kind of the present invention to provide safe operation of the monitor on the desktop application system in a virtual machine from a Windows application to a complete physical hardware schematic memory access operation;

图9为本发明提供的一种在监护仪上安全运行桌面应用程序的系统中的为外部存储器隔离的结构图。 FIG 9 is a structural view of an invention provided on the safe operation of the monitor system in the desktop application is isolated from the external memory.

[0023] 图10为本发明提供的一种在监护仪上安全运行桌面应用程序的系统中的外部存储器隔离的实施流程图。 One kind of the present invention provides [0023] the external memory system 10 of FIG safe operation of the desktop application on the monitor isolated flowchart.

[0024] 图11为本发明提供的一种在监护仪上安全运行桌面应用程序的系统中的网络接口隔离的结构图。 [0024] FIG. 11 is one kind of the present invention provides a monitor in a configuration diagram of the network interface isolation system safe operation of the desktop application.

[0025] 图12为本发明提供的一种在监护仪上安全运行桌面应用程序的系统中的屏幕和输入设备的隔离或非隔离的流程图。 [0025] FIG. 12 is a flowchart of a method of providing a spacer on the monitor the safe operation of a desktop application screen and input device of the present invention or isolated.

具体实施方式 detailed description

[0026] 本发明提供的一种在监护仪上安全运行桌面应用程序的系统,包括: [0026] A system of the present invention to provide safe operation of the monitor on the desktop application, comprising:

设置在所述监护仪的Windows操作系统和物理硬件之间的硬件虚拟器,所述硬件虚拟器用于虚拟出一虚拟硬件,并控制该虚拟硬件以及物理硬件的运行; Disposed between the Windows operating system and physical hardware monitors the hardware virtual device, the virtual hardware for a virtual hardware virtualized, and controls the operation of the virtual and physical hardware of hardware;

所述监护仪的Windows操作系统在所述虚拟硬件上运行桌面应用程序,其与所述虚拟硬件和所述桌面应用程序构成模拟PC系统;所述监护仪的监护仪系统独立于所述Windows操作系统,运行在所述物理硬件上,其中,所述硬件虚拟器内置操作系统或使用外置的宿主操作系统。 The monitor of the Windows operating system to run desktop applications on the virtual hardware, which constitutes the analog system and the PC hardware and the virtual desktop applications; monitors the monitor system is independent of the Windows operating system, running on the physical hardware, wherein the hardware or operating system virtual built using external host operating system.

[0027] 在具体实现中,所述硬件虚拟器可以为虚拟机管理器,其虚拟的硬件为虚拟机。 [0027] In a specific implementation, the virtual machine may be a hardware virtual machine manager, its virtual hardware virtual machine. 例如,存在为物理硬件HardwareA编译的软件SoftwareA,和另一物理硬件HardwareB,HardwareA和HardwareB指令集和中断系统可以是兼容的,也可以不是。 For example, there is the physical hardware HardwareA compiled software SoftwareA, and other physical hardware HardwareB, HardwareA and HardwareB instruction set and interrupt system can be compatible or not. 在物理硬件HardwareB上增加一个软件层可模拟HardwareA的指令集、中断和物理地址空间,从而SoftwareA能通过直接运行在该软件层的方式间接运行在HardwareB上。 Adding a layer of software to simulate the physical hardware HardwareB HardwareA instruction set, the interrupt and the physical address space, thereby indirectly SoftwareA can run directly on the operating mode of the software in HardwareB layer. 增加的这层软件被称为虚拟机管理器(Virtual Machine Monitor,VMM),被模拟的HardwareA资源被合称为虚拟机(Virtual Machine, VM), HardwareB被称为物理硬件,SoftwareA被称为客户软件。 This increased level software is called a virtual machine manager (Virtual Machine Monitor, VMM), simulated HardwareA resources are collectively called a virtual machine (Virtual Machine, VM), HardwareB is known as physical hardware, SoftwareA is called customer software. VMM通过VM提供各种虚拟硬件资源,运行在之上的SoftwareA可将其视为完整的硬件环境。 VMM offers a variety of virtual hardware resources VM, running on top of SoftwareA can be regarded as a complete hardware environment.

[0028] 在另一种实现方式中,所述硬件虚拟器为仿真器,其虚拟的硬件为仿真硬件。 [0028] In another implementation, the virtual hardware device is a simulator which virtual hardware emulation hardware. 仿真方式是指,在客户软件执行之前,虚拟机管理器把客户软件SoftwareA的二进制镜像中适用于硬件HardwareA指令集的指令翻译成适用于硬件HardwareB指令集的指令,再把翻译后的指令交给硬件HardwareB执行;所谓直接虚拟方式是指,由于HardwareA和HardwareB指令集兼容,因此SoftwareA的可以直接在HardwareB上执行,前提是,SoftwareA所需要的其它硬件资源也已被VMM虚拟出来,如中断、物理地址空间等。 The simulation mode means that, before the implementation of the client software, virtual machine manager to instructions in the instruction set of hardware HardwareA client software SoftwareA binary image applicable to translate instructions apply to hardware HardwareB instruction set, the instruction and then translated to hardware HardwareB execution; so-called direct virtually means that due to the compatible HardwareA and HardwareB instruction set, so SoftwareA can be performed directly on the HardwareB, provided that, other hardware resources SoftwareA needed has been a virtual VMM out, such as interrupts, physical address space.

[0029] 以下将分别描述硬件虚拟器的两种实现方式: [0029] The following will describe the two implementations of hardware virtualizer:

参见图1,为本发明提供的在监护仪上安全运行桌面应用程序的系统的实施例一的结构示意图。 In the structural diagram of the embodiment of the system monitor the safe operation of a desktop application Referring to Figure 1, the present invention provides.

[0030] 在Windows操作系统10和物理硬件20 (又称硬件20)之间增加一个系统监控程序(虚拟机管理器,VMM) 30。 [0030] between the Windows operating system and the physical hardware 10 20 (also known as the hardware 20) to increase a system monitoring program (virtual machine manager, VMM) 30. 虚拟机管理器30向上层提供物理硬件20的抽象(虚拟机,VM)40,虚拟机管理器30管理所有虚拟机40的运行,虚拟机管理器30可以内置操作系统,也可使用外置的宿主操作系统,图1所示为使用外置宿主操作系统80的情形。 Virtual machine manager 30 provides physical hardware abstraction to the upper layer 20 (VM, the VM) 40, a virtual machine manager 30 manages all the virtual machines run 40, a virtual machine manager 30 may be built into the operating system, can also be used external host operating system, as shown in FIG. 1 using an external case 80 of the host operating system.

[0031] Windows操作系统10运行在虚拟机40之上,Windows操作系统10、虚拟机40和Windows应用程序50构成通常意义的模拟PC系统(PC系统70)。 [0031] Windows 10 operating system running on a virtual machine 40, Windows 10 operating system, virtual machine 40 and Windows 50 applications constitute the usual sense of the analog PC system (PC system 70). 对Windows操作系统10而言,虚拟机40是拥有CPU、内存、系统总线、控制器和各种外设等硬件资源的完整的主机,且这些资源的硬件接口完全兼容Windows操作系统,因此,虽然这些硬件资源都是虚拟的,但是Windows操作系统10可以和处理物理硬件20资源一样处理它们,且Windows操作系统10本身无需任何改动。 For Windows 10 operating system on the virtual machine 40 is complete host has a CPU, memory, system bus controller and a variety of peripherals and other hardware resources, and those resources hardware interface is fully compatible with the Windows operating system, so while these are virtual hardware resources, but Windows 10 operating system and can handle 20 physical hardware resources to manipulate them, and the Windows 10 operating system itself without any changes. 虚拟机管理器30控制其下层的物理硬件20。 Virtual machine manager 30 controls the underlying physical hardware 20. 物理硬件20包含真实存在的CPU、内存、系统总线、控制器、外设等物理硬件资源。 20 includes the physical hardware CPU, memory, a system bus, controller, and other peripherals are real physical hardware resources. 由于虚拟机40具备完整和接口兼容的硬件环境,因此在不修改Windows操作系统10本身的前提下,可运行已有的Windows应用程序50。 Because virtual machines have 40 full and interface-compatible hardware environment, and therefore does not modify the premise itself, the Windows operating system 10, can run existing Windows applications 50. 监护仪系统60独立运行在宿主操作系统80之上。 Monitor system 60 independently of the operating system running on the host 80.

[0032] 参见图2,为本发明提供的在监护仪上安全运行桌面应用程序的系统的实施例二的结构示意图。 [0032] Referring to Figure 2, a schematic view of the structure in the embodiment of the system monitor the safe operation of the two desktop application provided by the present invention.

[0033] 与实例一的不同之处在于,本实施例二中:Windows操作系统10需要修改,以使得自身明确知晓虚拟机40和物理硬件20的不同之处,从而区别对待物理硬件和虚拟硬件这两种情形;虚拟机管理器30内部集成了操作系统功能,因而不存在独立的宿主操作系统。 [0033] Example one except that, for example, two in the present embodiment: Windows operating system 10 needs to be modified so that itself knows exactly the virtual machine 40 and the physical hardware except 20 to distinguish between the physical hardware and virtual hardware both cases; internal virtual machine manager 30 integrates the functions of an operating system, and therefore independent of the host operating system does not exist.

[0034] 参见图3,为本发明提供的在监护仪上安全运行桌面应用程序的系统的实施例三的结构示意图。 [0034] Referring to Figure 3, a schematic view of the structure in the embodiment of the system monitor the safe operation of the three desktop application provided by the present invention.

[0035] 图3所示的另一种实现基于硬件仿真方法。 [0035] FIG. 3 is shown another implementation of emulation method. 仿真器31在物理硬件20上模拟出一套新的仿真硬件41,Windows操作系统10运行在仿真硬件41上,Windows操作系统10之上的应用程序50不变。 31 in the simulator 20 simulates a physical hardware new simulation hardware 41, Windows 10 operating system running on the emulation hardware 41, Windows operating system applications above 1050 unchanged. 此时,仿真硬件41、Windows操作系统10、Windows应用程序50构成模拟PC系统70。 In this case, emulation hardware 41, Windows operating system 10, Windows 50 application system 70 constituting an analog PC. 监护仪系统60独立于PC系统70运行。 Monitor system 60 is independent of the PC system 70 runs.

[0036] 当PC系统70计算任务繁忙,CPU占用高企时,或PC系统701/0繁忙,中断负载高企时,为保证监护仪系统60仍然有充足的CPU资源可供使用,本发明中采用CPU隔离技术,使监护仪的监护仪系统与所述模拟PC系统使用相互隔离的CPU资源。 [0036] When the PC system 70 computing tasks busy, CPU usage is high, or PC systems 701/0 busy, high interrupt load, in order to ensure the monitor system 60 still have sufficient CPU resources are available, the present invention uses CPU isolation technology, the system monitors the monitor with the analog using isolated PC system CPU resources.

[0037] 具体实现中,通常有三种不同的实现方式: [0037] In specific implementation, there are usually three different ways:

第一种,所述监护仪的监护仪系统与所述模拟PC系统使用相互隔离的不同CPU。 First, the monitor of the system and the analog monitor PC systems use different CPU isolated from each other.

[0038] 第二种,所述虚拟机管理器通过控制CPU使用时间配额的方式隔离所述监护仪系统与所述模拟PC系统在不同的时间使用单路内核的同一CPU。 [0038] Second, the virtual machine monitor manager isolate the analog system and the PC system using the same single CPU core of time at different times by the control CPU quota manner.

[0039] 第三种,所述虚拟机管理器通过将所述监护仪系统与所述模拟PC系统运行的程序分别绑定在CPU的不同核心的方式隔离所述监护仪系统与所述模拟PC系统使用多路内核的同一CPU。 [0039] Third, the virtual machine manager by said system monitor PC system with the analog programs are running in a different binding mode of the CPU core of the isolation system with the analog monitor PC the system uses the same multiple CPU cores.

[0040] 本发明中所述监护仪的监护仪系统与所述模拟PC系统使用存储空间相互隔离的内部存储器和/或外部存储器。 [0040] The present invention monitors the system and the analog monitor PC system storage space isolated internal memory and / or external memory. 这是为了使得硬件虚拟器对内存的管理过程对PC系统透明,在PC系统的操作系统的角度上看,其访问存储器过程和在物理机中完全一样;iPC系统中发生不期望的内存内容破坏时,不会影响监护仪系统所使用的内存的有效性;监护仪系统使用有足够的物理内存供其使用;PC系统70和监护仪系统60分别访问不同的外部存储器,它们并行工作,显著提高了系统对外部存储访问的及时性。 This is provided to enable the hardware to manage the virtual memory of the process of transparent PC system, the PC system, the angle of the operating system point of view, and which processes memory access in exactly the same physical machine; from undesired destruction of the memory contents iPC system when, it does not affect the validity of the memory used by the monitor system; monitor system has sufficient physical memory for its use; the PC system 70 and the system monitor 60 are different from the external memory access, which work in parallel, significantly increased the timeliness of the system access to external storage.

[0041]另外,本发明实施例中,所述监护仪的监护仪系统与所述模拟PC系统使用接口相互隔离的网络控制器。 [0041] Further, in the embodiment, the monitor monitors the analog system and the PC system using a network controller interfaces isolated embodiment of the present invention. 并且,所述监护仪的监护仪系统60与所述模拟PC系统70共享或独立使用外设、屏幕或输入设备。 Further, the monitor system 60 monitors the shared system 70 analog PC peripherals or independently, a screen or input device.

[0042] 以下将以硬件虚拟器为虚拟机管理器为例,说明本发明提供在监护仪上安全运行桌面应用程序的系统的工作原理和流程。 [0042] The following will be the virtual hardware for the virtual machine manager is an example to explain the principles of the present invention is to provide work and process safety systems running desktop applications on the monitor. 硬件虚拟器为仿真器的工作原理和流程与虚拟机管理器类似,不再赘述。 Hardware virtualization is the working principle and process for the virtual machine manager simulator is similar to not repeat them.

[0043] 参见图4,为本发明提供在监护仪上安全运行桌面应用程序的系统的工作流程的一个不意图。 [0043] Referring to FIG. 4, the present invention is not intended to provide a workflow system safe operation of desktop applications on the monitor.

[0044] 步骤SI,启动监护仪系统60,监护仪系统60启动完成后,可以提供正常的监护仪功能,如病人生理参数测量和存储、报警、病人信息处理等。 [0044] Step the SI, the system start the monitor 60, the monitor system 60 after startup is complete, the monitor can provide normal function, such as measuring and storing patient physiological parameter, the alarm, the patient information processing.

[0045] 步骤S2,检查PC模式是否已打开,如果PC模式已打开,则执行步骤S3,启动虚拟机管理器30 ;否则,系统启动结束,监护仪系统进入正常工作状态。 [0045] Step S2, check the PC mode is turned on, if the PC mode is turned on, step S3, the virtual machine manager 30; Otherwise, the system starts, monitor the system into normal operation.

[0046] 步骤S4,为虚拟机40分配硬件资源。 [0046] Step S4, the virtual machine 40 allocates hardware resources.

[0047] 步骤S5,启动虚拟机40 ; [0047] step S5, the virtual machine 40;

步骤S6,将虚拟机40运行的桌面应用程序以及监护仪系统60运行的程序分别与CPU进行绑定。 Step S6, the desktop application running 40 virtual machines and monitor the system 60 runs respectively bind with the CPU.

[0048] 其中,步骤S4包括子步骤S401,S402,S403,S404,S405,这些子步骤的执行顺序可以互相调换。 [0048] wherein, in step S4 includes sub-steps S401, S402, S403, S404, S405, the sequence in which sub-steps may be replaced with each other. 参见图5,其具体包括: Referring to Figure 5, which comprises:

步骤S401,为虚拟机40实施CPU隔离; 步骤S402,为虚拟机40实施内存隔离; Step S401, the CPU 40 performs a virtual machine isolation; step S402, the virtual machine is isolated from the memory 40 embodiment;

步骤S403,为虚拟机40实施外部存储器隔离; Step S403, the virtual machine is isolated from the external memory 40 embodiment;

步骤S404,为虚拟机40实施网络隔离。 Step S404, the virtual network isolation device 40 embodiment.

[0049] 步骤S405,为虚拟机40实施外设的处理。 [0049] step S405, the peripheral process embodiment for a virtual machine 40.

[0050] 需要具体说明的是,为虚拟机40实施CPU隔离的目的包括:保证在PC系统计算任务繁忙,CPU占用高企时,监护仪系统仍有充足的CPU资源可供使用;保证PC系统中断负载高企时,监护仪系统仍有充足的CPU资源可供使用。 [0050] The need to specify that the purpose of the implementation of the virtual machine 40 includes the CPU isolation: to ensure that when the PC system is busy computing tasks, CPU usage is high, monitor the system still has sufficient CPU resources are available; ensure PC system outage when the load is high, the monitor system is still sufficient CPU resources are available. 目前已有的监护仪内置PC的做法通常是使用2个独立的硬件平台,并在其上运行独立的操作系统,因此无法使用CPU隔离技术。 At present, the monitor's built-in PC is usually achieved using two separate hardware platforms, and on which runs an independent operating system, CPU can not be used isolation techniques. CPU隔离技术是监护仪的特有技术,一般不适用于桌面或服务器场合下的虚拟机实例。 CPU isolation technology is unique technology monitors generally do not apply to virtual machine instances in a desktop or server applications. 监护仪属于对实时性有要求的系统,而桌面和服务器系统本身不属于实时系统;后者在绝大多数情况下,并不要求诸如“波形必须在1ms内绘制出”,或“指令必须在1ns内得到执行”之类的实时性要求,反而追求硬件资源的可伸缩性,即将有限的CPU资源提供给尽量多的任务使用,因此桌面和服务器领域往往采用为各虚拟机动态分配CPU资源的方式,而非使用CPU隔离的方法。 It belongs to monitor the real-time requirements of the system, and desktop and server system does not belong to the real-time system; which, in most cases, does not require such "waveform must be drawn out in 1ms" or "instruction must 1ns implemented within real-time requirements, "and the like, but the pursuit of hardware resources, scalability, about to limited CPU resources available to as many tasks, so the desktop and server space often dynamic allocation of CPU resources among virtual machines way, rather than using the CPU method of isolation.

[0051 ] 如图6所示,为虚拟机40实施CPU隔离的步骤包括: [0051] As shown in FIG 6, for the implementation of virtual machine CPU 40 isolating step comprises:

步骤SI,判断监护仪使用的CPU是多个还是一个,该CPU是多核心还是单核心? Step SI, determine CPU monitor is used or a multiple of the CPU is multi-core or single-core?

步骤S2,在多个CPU或多核心CPU的情况下,将监护仪系统和PC系统分别与CPU或核心进行绑定,否则进入步骤S3结束流程。 Step S2, in the case of multiple CPU or multi-core CPU, the system will monitor and PC system were bound to CPU or core, or end the process proceeds to step S3.

[0052] 步骤S3,在单CPU或核心的情况下,为监护仪系统和PC系统分配时间配额,并结束。 [0052] Step S3, the CPU in the case of a single core or, as the quota allocation time monitor systems and PC systems, and ends.

[0053] 需要说明的是,如果虚拟机40使用超过配额的CPU时间,则虚拟机管理器30将虚拟机40挂起,并将CPU分配给其它有需要的程序,如监护仪系统60,或其它程序。 [0053] Incidentally, if the virtual machine 40 uses CPU time exceeds the quota, the virtual machine manager 30 suspend the virtual machine 40, and the CPU allocated to other programs in need thereof, such as the monitor system 60, or other programs. 进一步的,如果仅依靠控制CPU使用时间配额的方式隔离监护仪系统60,在单核心单CPU系统上,受CPU资源本身的限制,在满足监护仪系统60实时性的前提下,将导致虚拟机40的响应延迟时间增加。 Further, if you rely only control CPU time quotas way isolation monitor system 60, in the single-core single-CPU systems, limited CPU resources themselves, to meet the premise of real-time monitor system 60 under, will result in a virtual machine 40 in response to the increase in delay time. 使用多核心CPU的硬件和核心绑定方法解决了该问题。 The use of multi-core hardware and CPU core binding solution to the problem.

[0054] 如图7所示,为监护仪系统绑定CPU子集的步骤包括: Step [0054] As illustrated, the bindings for the CPU 7 subset monitor system comprising:

步骤S301,为监护仪系统绑定CPU子集I ; Step S301, the CPU binding to a subset of the monitor system I;

步骤S302,为监护仪系统独占的控制器绑定相同的CPU子集I ; Step S302, the CPU bind the same subset I is the system exclusive of the monitor controller;

步骤S303,为PC系统绑定CPU子集2 ; Step S303, the CPU binding to a subset of the system PC 2;

步骤S304,为PC系统独占的控制器绑定相同的CPU子集2 ; Step S304, the controller is a PC system exclusive subsets binding the same CPU 2;

步骤S305,为监护仪系统和PC系统共享的控制器绑定相同的CPU子集2。 Step S305, the CPU of the bindings for the same subset of 2 systems and PC monitors the shared system controller.

[0055] 具体实现中,定义CPU核心集合C为{C |C = c0,cl,c2,…,cN,N为核心数},定义程序P 绑定的核心集合Cbinding (P)为{Cbinding Cbinding = Cbinding U {cX},如果程序P或P的一部分能运行在核心cX上},定义程序P独占绑定的核心集合Cexclusive (P)为{Cexclusive | Cexclusive = Cexclusive U {cY},如果程序P 或P 的一部分能且只能运行在核心cY上}。 [0055] In specific implementation, the CPU core is defined as a set of C {C | C = c0, cl, c2, ..., cN, N} as the cores, the core set of bindings defined program P Cbinding (P) of {Cbinding Cbinding = Cbinding U {cX}, P or P if the program runs on a portion of the core cX}, P exclusive binding core defined set of programs Cexclusive (P) of {Cexclusive | Cexclusive = Cexclusive U {cY}, if the program P or a portion of P and only can be run on the core cY}. 以I个包含4个核心的CPU解释绑定核心的含义:假定4个核心为(30、(:1、02、03,那么核心集合0={00,cl,c2,c3}如果绑定c0,cl给程序PO,则程序PO绑定核心集合Cbinding(PO) = {cO, cl};假定又绑定核心cl, c2给程序Pl,则程序Pl绑定核心集合Cbinding(Pl) = Icl, c2},此时,核心cl被程序PO和Pl同时绑定,也就是说被PO和Pl分时使用。如果PO独占绑定核心CO,Cl,则Pl无法再绑定到Cl上,反之亦然,即如果Cexclusive (PO) = {cO, cl};则Cexclusive (Pl) =M,M= {c2} | {c3} | {c2, c3}。由此可见,独占绑定将不同程序使用的核心完全隔离。对于步骤S401,一个可行的绑定例子是:虚拟机40独占绑定核心CO、Cl ;监护仪系统60独占绑定c2、c3。综上所述,引入多核CPU,使监护仪系统60独占绑定部分核心,使虚拟机40独占绑定其它核心,从而将监护仪系统60和虚拟机40的CPU资源从物理上进行隔离,更好地满足了各自的实 The meanings explained in the I comprising four CPU core binding core: the core 4 is assumed (30, (: 1,02,03, the core set 0 = {00, cl, c2, c3} if the binding c0 , cl program to PO, the PO program binding core set Cbinding (PO) = {cO, cl}; assuming core and binding cl, c2 to the program Pl, the program Pl binding core set Cbinding (Pl) = Icl, c2}, at this time, the core program cl PO and Pl are bound simultaneously, that is to say the use of time-PO and Pl. If the core CO.'s PO exclusive binding, cl, it can no longer bind to the Pl cl, and vice versa However, i.e. if Cexclusive (PO) = {cO, cl}; then Cexclusive (Pl) = M, M = {c2} | {c3} | {c2, c3} Thus, different binding exclusive program. completely isolated from the core to the step S401, the binding of a possible example: a virtual machine exclusive binding core 40 CO, Cl; monitor system 60 exclusive binding c2, c3 summary, the introduction of multi-core the CPU, so that monitoring. instrument system exclusive binding part of the core 60, so that the virtual machine 40 exclusive binding other core so that the monitor system 60 and virtual machine CPU resource 40 is physically isolated from, to better meet their real 性和性能要求。另一种替代方法是,用多个CPU代替I个CPU中的多个核心,绑定过程类似,不再赘述。 And performance requirements. Another alternative is that instead of a plurality of cores in the CPU I with a plurality of CPU, similar to the binding process, is omitted.

[0056] 步骤S402为虚拟机40实施内存隔离。 [0056] Step S402 is isolated from the virtual machine memory 40 embodiment. 实时内存隔离的主要目的是,VMM对内存的管理过程对PC系统透明,在PC系统的操作系统的角度上看,其访存过程和在物理机中完全一样;当PC系统中发生不期望的内存内容破坏时,不会影响监护仪系统所使用的内存的有效性;监护仪系统使用有足够的物理内存供其使用。 The main purpose of real-time memory is isolation, VMM memory management process transparent PC system, the operating system point of PC systems point of view, its memory access process and in exactly the same physical machine; the occurrence of undesirable when the PC system memory contents damage, memory does not affect the validity of monitor used by the system; monitor system has enough physical memory for its use. 虚拟机管理器30管理所有物理内存,保证了虚拟机40和监护仪系统60使用的物理内存互不重叠,避免了其中一方发生不期望的内存破坏时另一方受影响。 Virtual machine manager 30 manages all the physical memory, the physical memory to ensure that the virtual machine monitor 40 and the system 60 uses do not overlap, wherein to avoid the other party when the affected undesirable memory corruption occurs.

[0057] 如图8所示为从虚拟机中的Windows应用程序到物理硬件的I次完整访存操作过程。 [0057] Figure 8 is a virtual machine from a Windows application to the I-th physical hardware complete memory access operation.

[0058] 在步骤S1:客户Windows应用程序执行访存指令,它使用的是客户Windows操作系统管理的虚拟地址,称为客户程序虚拟地址(Guest Virtual Address/GVA),对于运行在虚拟机中的应用程序而言,对该地址的访问和在物理机完全一样,应用程序无需修改; [0058] In step S1: Windows client application executes memory access instructions, it uses the Windows client operating system management virtual address, called client virtual address (Guest Virtual Address / GVA), to run in a virtual machine For application, access to the addresses and exactly the same physical machine, the application without modification;

在步骤S2中,客户Windows操作系统通过自己维护的页表结构,将GVA转换为虚拟机中的物理地址(Guest Physical Address/GPA),对于运行在虚拟机中的Windows操作系统而言,对该地址的访问和在物理机中完全一样,操作系统无需修改; In step S2, the Windows client operating system by maintaining their own page table structure, the GVA into a physical address (Guest Physical Address / GPA) virtual machine for running the Windows operating system in a virtual machine is concerned, the access and address exactly the same physical machine, the operating system without modification;

在步骤S3中,客户Windows操作系统执行访存指令,此时使用的是虚拟机中的物理地址GPA,对于运行在虚拟机中的Windows操作系统而言,对该地址的访问和在物理机中完全一样,操作系统无需修改; In step S3, Windows client operating system to perform memory access instructions, this time using a physical address GPA virtual machine for running the Windows operating system in a virtual machine in terms of access to the addresses and physical machines in exactly the same as the operating system without modification;

在步骤S4中,虚拟机管理器拦截客户Windows操作系统的访存指令,将GPA翻译为物理硬件的地址(Host Physical Address/HPA),该步骤对虚拟机中的操作系统和应用程序透明; In step S4, the virtual machine manager to intercept Windows client address (Host Physical Address / HPA) memory access instructions will be translated GPA physical hardware operating system, this step is transparent to the virtual machine operating systems and applications;

在步骤S5中,虚拟机管理器通过物理硬件地址HPA实施访存,从而实现从虚拟机中运行的应用程序到物理硬件的I次访存操作,该步骤同样也对虚拟机中的操作系统和应用程序透明。 In step S5, the virtual machine manager fetched by physical hardware address HPA embodiment, enabling applications running from the virtual machine I-th fetch operation to the physical hardware, this step also the operating system of the virtual machine and application transparent.

[0059] 步骤S403为虚拟机40实施外部存储器隔离,其具体实现过程件图9和图10。 [0059] Step S403 to the external memory virtual machine embodiment spacer 40, a specific implementation process member 10 of FIG. 9 and FIG.

[0060] 如图9和图10所示,使用独立存储器,使得PC系统70和监护仪系统60分别访问不同的外部存储器。 [0060] As shown in FIGS. 9 and 10, the use of a separate memory, such that the PC system 70 and the system monitor 60 are different from the external memory access. 独立外部存储器80处理来自PC系统的1/0请求的同时,独立外部存储器90可以不受限制的响应来自监护仪系统的1/0请求;它们并行工作,显著提高了系统对外部存储访问的及时性。 Independent external memory 80 1/0 processing request from the PC system while the external memory 90 can respond independently unrestricted 1/0 request from the monitor system; they operate in parallel, significantly improving the timeliness of the external memory access system sex.

[0061] 步骤S404为虚拟机40实施网络隔离的具体内容如图11所示,其结构与流程与S403相同,仅实施对象不同,本步骤中的实施对象为网络控制器,不再重复说明。 [0061] Step S404 is a virtual network isolation device 40 embodiment shown in Figure 11 the details of its structure and the same processes and S403, different embodiments only the object, the object of the present embodiment is a network controller in step, will not be repeated.

[0062] 步骤S405为虚拟机40实施显示和输入设备的处理,具体过程见图12。 [0062] Step S405 is processing the virtual machine embodiment 40 of the display and input device, the specific process shown in Figure 12.

[0063] 显示和输入设备既可以是隔离的,也可以是共享的,下面将分别描述。 [0063] The display and input device can be either isolated, or may be shared, will be described separately below.

[0064] 如图12所示,如果用户使用独立双屏幕模式,那么在步骤SI中,为PC系统和监护仪系统各分配I个独占的显示设备,它们各自独立地输出图形界面。 [0064] As shown in FIG 12, if a user double-screen mode to use separate, in step SI, a system for the PC monitor and the I system are each assigned an exclusive display device, each of which is independently graphical output.

[0065] 如果用户使用独立输入设备,那么在步骤S3中,为每个屏幕分配独占的输入设备;进一步的,在步骤S5中,将一个屏幕+输入设备的组合指派给监护仪系统,另一个组合指派给PC系统,那么整个系统成为可同时支持2用户并行使用的系统,其中I个用户独立操作监护仪系统,另I个用户则独立操作PC系统。 [0065] If the user input device independent, then in step S3, the exclusive assignment to each screen input device; further, in step S5, the combination of a screen is assigned to the + input device monitor system, another assigned to the combination of the PC system, the entire system may simultaneously support 2 becomes parallel use user system, user I wherein independently monitor the operating system, the other user I PC operating system independent.

[0066] 另一种情形是,I个用户可操作独立双屏幕,如步骤S7所示,首先将输入设备I同时绑定到2个屏幕,并扩充其坐标范围为屏幕I和屏幕2的和,同时断开输入设备2 ;在步骤S9中,监护仪直接访问输入设备1,PC系统通过VMM间接访问输入设备1,VMM同时把输入设备I的原始坐标转换为监护仪所在屏幕的相对坐标。 [0066] Another situation is, independently operable user I dual-screen, as shown in step I is first input device S7 bind simultaneously to two screens, and to expand the range of its coordinates and screen I and screen 2 , and disconnect the input device 2; in step S9, the direct access to the monitor input device 1, PC indirect access to the system through input devices VMM. 1, while the input device I VMM original coordinates into relative coordinates where the monitor screen.

[0067] 反之,在非双屏幕模式下,显示设备和输入设备都被监护仪系统和PC系统所共享。 [0067] In contrast, in the non-dual-screen mode, the display device and input devices are shared by the system monitor and PC systems.

[0068] 如果用户使用共享的屏幕,那么在步骤S2,首先将屏幕I分配给监护仪系统,随后执行步骤S4,断开屏幕2,并将PC系统的输出重定向至监护仪系统中的I个窗口,用户可在屏幕I中同时操作监护仪系统和PC系统的图形界面;如果用户使用共享的输入设备,那么在步骤S8中,监护仪系统可直接访问所有输入设备,PC系统则只能通过VMM间接访问这些设备,但该过程对PC系统中的操作系统和应用软件透明。 [0068] If the user uses the shared screen, then at step S2, the screen is first assigned to the monitor system I, then performs step S4, the screen 2 is disconnected, and outputs the PC system to redirect the monitor system I a window, the user can operate the monitor system and PC system graphics user interface on the screen I; if using a shared user input device, then in step S8, the monitor system can directly access all input devices, PC systems can only indirect access these devices through VMM, but the process of the PC operating system and application software system transparent.

[0069] 注意,通过简单的扩展,也可以获得3屏或更多屏幕及输入设备共同使用的情形,不再赘述。 [0069] Note that a simple extension can be obtained Scenario 3 screens or more screens and input devices used in common, not repeat them.

[0070] 实施本发明,监护仪系统和windows桌面应用程序既共享了物理硬件资源,降低了系统复杂度和成本;又能保持相互隔离,使得桌面应用软件的运行和异常不会影响监护仪系统的可靠性和实时性。 [0070] The embodiment of the present invention, the system monitors both desktop applications and windows share physical hardware resources, reducing the complexity and cost of the system; while maintaining mutual isolation, such desktop applications running and does not affect the abnormal Monitor System reliability and timeliness.

[0071] 本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,是可以通过计算机程序来指令相关的硬件来完成,所述的程序可存储于一计算机可读取存储介质中,该程序在执行时,可包括如上述各方法的实施例的流程。 [0071] Those of ordinary skill in the art may understand that the above-described method embodiments all or part of the processes may be related hardware instructed by a computer program, the program may be stored in a computer readable storage medium. when the program is executed, the processes of the foregoing method embodiments. 其中,所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory, ROM)或随机存储记忆体(Random AccessMemory, RAM)等。 Wherein the storage medium may be a magnetic disk, an optical disk, read-only memory (Read-Only Memory, ROM) or a random access memory (Random AccessMemory, RAM) and the like.

[0072] 以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。 [0072] The above contents with the specific preferred embodiments of the present invention is further made to the detailed description, specific embodiments of the present invention should not be considered limited to these descriptions. 对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。 Those of ordinary skill in the art for the present invention, without departing from the spirit of the present invention, can make various simple deduction or replacement, should be deemed to belong to the scope of the present invention.

Claims (10)

  1. 1.一种在监护仪上安全运行桌面应用程序的系统,其特征在于,包括: 设置在所述监护仪的Windows操作系统和物理硬件之间的硬件虚拟器,所述硬件虚拟器用于虚拟出一虚拟硬件,并控制该虚拟硬件以及所述物理硬件的运行; 所述监护仪的Windows操作系统在所述虚拟硬件上运行桌面应用程序,其与所述虚拟硬件和所述桌面应用程序构成PC系统;所述监护仪的监护仪系统独立于所述Windows操作系统,运行在所述物理硬件上。 A safety system desktop applications running on the monitor, characterized by, comprising: a hardware virtual device disposed between the Windows operating system and monitors the physical hardware, virtual hardware for the virtualized a virtual hardware, and control the operation of the virtual hardware as well as the physical hardware; the monitor of the Windows operating system to run desktop applications on the virtual hardware, which constitutes the PC hardware and the virtual desktop applications the system; monitor monitors the system is independent of the Windows operating system, running on the physical hardware.
  2. 2.如权利要求1所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述硬件虚拟器内置操作系统或使用外置的宿主操作系统。 2. The security desktop applications running on the monitor as claimed in claim 1, wherein the hardware or operating system virtual built using external host operating system.
  3. 3.如权利要求2所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述硬件虚拟器为虚拟机管理器,其虚拟出的虚拟硬件为虚拟机。 Safe operation of the desktop application on the monitor 2 as claimed in claim 3, wherein said virtualizer is a hardware virtual machine manager, which virtualizes the virtual machine virtual hardware.
  4. 4.如权利要求2所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述硬件虚拟器为仿真器,其虚拟出的虚拟硬件为仿真硬件。 4. The system of safe operation of the desktop application on the monitor as claimed in claim 2, wherein said virtualizer is a hardware emulator, a virtual its virtual hardware emulation hardware.
  5. 5.如权利要求3或4所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述监护仪的监护仪系统与所述PC系统使用相互隔离的不同CPU或核心。 5. The security application running on a desktop 3 or 4, wherein the monitor as claimed in claim, wherein the monitor monitors the system and the PC systems use different CPU core or isolated from each other.
  6. 6.如权利要求3或4所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述虚拟机管理器通过控制CPU使用时间配额的方式隔离所述监护仪系统与所述模拟PC系统在不同的时间使用单路内核的同一CPU。 6. Machine Manager time quota isolated manner by the control of the CPU monitor system and the safe operation of the analog system as claimed in desktop applications on 3 or claim 4, wherein the monitor, wherein the virtual PC systems use the same single core CPU at different times.
  7. 7.如权利要求3或4所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述虚拟机管理器通过将所述监护仪系统与所述PC系统运行的程序分别绑定在CPU的不同核心或不同的CPU的方式隔离所述监护仪系统与所述PC系统使用CPU。 7. The system of safe operation of the desktop application on claim 3 or 4 monitors claim, wherein the virtual machine manager program by the system and the PC monitor system operation each bound in various core CPU or a different CPU way of isolating the monitor system and the PC system CPU.
  8. 8.如权利要求3或4所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述监护仪的监护仪系统与所述模拟PC系统使用存储空间相互隔离的外部存储器。 8. The system of safe operation of the desktop application on claim 3 or 4 monitors claim, wherein the monitor monitors the analog system and the PC system storage space isolated from each other external memory.
  9. 9.如权利要求3或4所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述监护仪的监护仪系统与所述模拟PC系统使用接口相互隔离的网络控制器。 A monitor as claimed in claim 3 or 4, the safe operation of the desktop application, wherein the monitor monitors the analog system and the PC using the interface system are isolated from the network controller.
  10. 10.如权利要求3或4所述的监护仪上安全运行桌面应用程序的系统,其特征在于,所述监护仪的监护仪系统与所述模拟PC系统共享或独立使用屏幕或输入设备。 The safe operation of the system 10. The desktop application 3 or 4, wherein the monitor as claimed in claim, wherein the monitor monitors the analog system and the PC system using shared or separate screen or an input device.
CN 201410002178 2014-01-02 2014-01-02 System for safely operating desktop application on monitor CN104765637A (en)

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CN102339229A (en) * 2010-07-15 2012-02-01 戴元顺 Virtualization method based on operating system layer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1716204A (en) * 2004-06-30 2006-01-04 微软公司 Systems and methods for development of emulated devices in a virtual machine environment
US20090024994A1 (en) * 2007-07-20 2009-01-22 Eg Innovations Pte. Ltd. Monitoring System for Virtual Application Environments
CN101739284A (en) * 2008-11-20 2010-06-16 联想(北京)有限公司 Computer and information processing method
CN102339229A (en) * 2010-07-15 2012-02-01 戴元顺 Virtualization method based on operating system layer

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