CN104166528A - Image output control system and method - Google Patents
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Abstract
一种图像输出控制系统，运行于计算设备的每个主板的基板管理控制器中，所述计算设备还包括背板及数据选择单元，该系统包括：读取模块，用于读取主板的连接状态信号；确定模块，用于根据所述连接状态信号确定连接到背板的主板；接收模块，用于接收用户的图像输出命令；及控制模块，用于根据确定的连接到背板的主板及接收的图像输出命令产生输出控制信号，将所述输出控制信号及主板的图像信号传送给数据选择单元，使得数据选择单元根据所述输出控制信号输出指定主板的图像信号至背板。本发明还提供一种图像输出控制方法。本发明能够方便地在计算设备的多个主板间切换图像输出。
An image output control system, running in the baseboard management controller of each motherboard of the computing device, the computing device also includes a backplane and a data selection unit, the system includes: a reading module, used to read the connection of the motherboard Status signal; determining module, used to determine the motherboard connected to the backplane according to the connection status signal; receiving module, used to receive the image output command of the user; and a control module, used to determine the motherboard connected to the backplane and The received image output command generates an output control signal, and transmits the output control signal and the image signal of the motherboard to the data selection unit, so that the data selection unit outputs the image signal of the specified motherboard to the backplane according to the output control signal. The invention also provides an image output control method. The invention can conveniently switch image output among multiple motherboards of the computing device.
Description
技术领域 technical field
本发明涉及一种控制系统及方法，特别是关于一种具有多个主板的计算设备的图像输出控制系统及方法。 The invention relates to a control system and method, in particular to an image output control system and method of a computing device with multiple motherboards.
背景技术 Background technique
为了提升计算设备（例如服务器）的数据处理能力，计算设备中往往配备有多个主板。计算设备中的各个主板很少会用到显示设备，通常是在配置系统或是系统出现问题时才需要使用显示设备。如果为每个主板配备一台显示设备，会造成资源的大大浪费。若只配备一台显示设备，则用户需要来回插拔各个主板的图像接口进行切换，给用户造成了不便。 In order to improve the data processing capability of a computing device (such as a server), the computing device is often equipped with multiple motherboards. Display devices are seldom used for each motherboard in a computing device, and are usually used only when configuring the system or when a problem occurs in the system. If each motherboard is equipped with a display device, it will cause a great waste of resources. If only one display device is equipped, the user needs to plug and unplug the image interface of each main board to switch, which causes inconvenience to the user.
发明内容 Contents of the invention
鉴于以上内容，有必要提供一种图像输出控制系统，能够方便地输出指定主板的图像信号。 In view of the above, it is necessary to provide an image output control system that can conveniently output the image signal of a designated mainboard.
此外，还有必要提供一种图像输出控制方法，能够方便地输出指定主板的图像信号。 In addition, it is also necessary to provide an image output control method, which can conveniently output the image signal of the designated main board.
一种图像输出控制系统，运行于计算设备的每个主板的基板管理控制器中，所述计算设备还包括背板及数据选择单元，该系统包括：读取模块，用于读取主板的连接状态信号；确定模块，用于根据所述连接状态信号确定连接到背板的主板；接收模块，用于接收用户的图像输出命令；及控制模块，用于根据确定的连接到背板的主板及接收的图像输出命令产生输出控制信号，将所述输出控制信号及主板的图像信号传送给数据选择单元，使得数据选择单元根据所述输出控制信号输出指定主板的图像信号至背板。 An image output control system, running in the baseboard management controller of each motherboard of the computing device, the computing device also includes a backplane and a data selection unit, the system includes: a reading module, used to read the connection of the motherboard Status signal; determining module, used to determine the motherboard connected to the backplane according to the connection status signal; receiving module, used to receive the image output command of the user; and a control module, used to determine the motherboard connected to the backplane and The received image output command generates an output control signal, and transmits the output control signal and the image signal of the motherboard to the data selection unit, so that the data selection unit outputs the image signal of the designated motherboard to the backplane according to the output control signal.
一种图像输出控制方法，应用于计算设备的每个主板的基板管理控制器中，所述计算设备还包括背板及数据选择单元，该方法包括：读取主板的连接状态信号；根据所述连接状态信号确定连接到背板的主板；接收用户的图像输出命令；及根据确定的连接到背板的主板及接收的图像输出命令产生输出控制信号，将所述输出控制信号及主板的图像信号传送给数据选择单元，使得数据选择单元根据所述输出控制信号输出指定主板的图像信号至背板。 An image output control method, applied to a baseboard management controller of each mainboard of a computing device, the computing device further comprising a backplane and a data selection unit, the method comprising: reading a connection status signal of the mainboard; according to the The connection status signal determines the motherboard connected to the backplane; receives the user's image output command; and generates an output control signal according to the determined motherboard connected to the backplane and the received image output command, and combines the output control signal with the image signal of the motherboard The data is transmitted to the data selection unit, so that the data selection unit outputs the image signal of the specified main board to the backplane according to the output control signal.
本发明只需要为计算设备配备一台显示设备，可以方便地在计算设备的多个主板间切换图像输出，达到节省资源降低成本的目的。 The present invention only needs to equip a computing device with one display device, and can conveniently switch image output among multiple mainboards of the computing device, thereby achieving the purpose of saving resources and reducing costs.
附图说明 Description of drawings
图1为本发明图像输出控制系统的运行环境示意图。 FIG. 1 is a schematic diagram of the operating environment of the image output control system of the present invention.
图2为图1中图像输出控制系统的功能模块图。 FIG. 2 is a functional block diagram of the image output control system in FIG. 1 .
图3为本发明图像输出控制方法较佳实施例的流程图。 FIG. 3 is a flowchart of a preferred embodiment of the image output control method of the present invention.
主要元件符号说明 Description of main component symbols
如下具体实施方式将结合上述附图进一步说明本发明。 The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.
具体实施方式 Detailed ways
参阅图1所示，是本发明图像输出控制系统的运行环境示意图。所述图像输出控制系统1000运行于包括多个主板10（图上只画出一个）的计算设备1中，每个主板10包括基板管理控制器100。详细地，所述图像输出控制系统1000运行于计算设备1的每个主板10的基板管理控制器100中。 Referring to FIG. 1 , it is a schematic diagram of the operating environment of the image output control system of the present invention. The image output control system 1000 runs in a computing device 1 including a plurality of motherboards 10 (only one is shown in the figure), and each motherboard 10 includes a baseboard management controller 100 . In detail, the image output control system 1000 runs in the BMC 100 of each motherboard 10 of the computing device 1 .
所述计算设备1还包括背板11及数据选择单元12。背板11包括图像接口110，该图像接口110与显示设备2相连接。所述基板管理控制器100与数据选择单元12相连接。 The computing device 1 further includes a backplane 11 and a data selection unit 12 . The backplane 11 includes an image interface 110 connected to the display device 2 . The baseboard management controller 100 is connected with the data selection unit 12 .
所述主板10产生连接状态信号，用以表明是否连接到背板11。所述主板10还产生图像信号，用以进行图像显示。主板10将所述连接状态信号及图像信号传送给基板管理控制器100。图像输出控制系统1000根据所述连接状态信号及用户的图像输出命令产生输出控制信号，并将所述输出控制信号及所述图像信号传送给数据选择单元12。 The motherboard 10 generates a connection status signal to indicate whether it is connected to the backplane 11 . The motherboard 10 also generates image signals for image display. The motherboard 10 transmits the connection status signal and the image signal to the BMC 100 . The image output control system 1000 generates an output control signal according to the connection status signal and the user's image output command, and transmits the output control signal and the image signal to the data selection unit 12 .
数据选择单元12根据所述输出控制信号将指定主板10的图像信号输出至背板11，并通过背板11上的图像接口110将该指定主板10的图像信号传送给显示设备2进行显示。 The data selection unit 12 outputs the image signal of the specified mainboard 10 to the backplane 11 according to the output control signal, and transmits the image signal of the specified mainboard 10 to the display device 2 through the image interface 110 on the backplane 11 for display.
基板管理控制器100还包括存储设备1001及处理器1002。所述存储设备1001存储图像输出控制系统1000的程序代码。所述处理器1002执行图像输出控制系统1000的程序代码，以实现上述图像输出控制系统1000的功能。在本实施例中，所述连接状态信号及输出控制信号是通用输入输出（general purpose input/output，GPIO）信号，所述图像信号是视频图形阵列（video graphics array，VGA）信号。 The baseboard management controller 100 also includes a storage device 1001 and a processor 1002 . The storage device 1001 stores program codes of the image output control system 1000 . The processor 1002 executes the program codes of the image output control system 1000 to realize the above functions of the image output control system 1000 . In this embodiment, the connection status signal and the output control signal are general purpose input/output (GPIO) signals, and the image signal is a video graphics array (video graphics array, VGA) signal.
参阅图2所示，是图1中图像输出控制系统的功能模块图。所述图像输出控制系统1000包括读取模块200、确定模块201、接收模块202及控制模块203。 Referring to FIG. 2 , it is a functional block diagram of the image output control system in FIG. 1 . The image output control system 1000 includes a reading module 200 , a determining module 201 , a receiving module 202 and a control module 203 .
所述读取模块200用于读取来自于主板10的连接状态信号。在本实施例中，在每个主板10与背板11相连的接口中设置一个连接状态管脚，用于传输连接状态信号给基板管理控制器100。主板10的连接状态管脚通过一个电阻连接到高电平，背板11的连接状态管脚接地。若主板10未连接到背板11，则主板10传输给基板管理控制器100的连接状态信号为高电平。若主板10连接到背板11，则主板10传输给基板管理控制器100的连接状态信号为低电平。在本实施例中，每个主板10将自身的连接状态信号传输给每个基板管理控制器100。 The reading module 200 is used for reading the connection status signal from the motherboard 10 . In this embodiment, a connection status pin is provided in the interface connecting each main board 10 to the backplane 11 for transmitting a connection status signal to the BMC 100 . The connection state pin of the main board 10 is connected to a high level through a resistor, and the connection state pin of the backplane 11 is grounded. If the motherboard 10 is not connected to the backplane 11 , the connection status signal transmitted from the motherboard 10 to the BMC 100 is at a high level. If the mainboard 10 is connected to the backplane 11 , the connection status signal transmitted from the mainboard 10 to the BMC 100 is at a low level. In this embodiment, each motherboard 10 transmits its own connection status signal to each BMC 100 .
所述确定模块201用于根据所述连接状态信号确定连接到背板11的主板10。例如，确定模块201根据所述连接状态信号确定主板10A、10B、10C及10D连接到背板11。在本实施例中，每个主板10对应一个连接状态信号，若连接状态信号为高电平，表明该主板10未连接到背板11，若连接状态信号为低电平，表明该主板10连接到背板11。 The determination module 201 is configured to determine the main board 10 connected to the backplane 11 according to the connection state signal. For example, the determination module 201 determines that the mainboards 10A, 10B, 10C, and 10D are connected to the backplane 11 according to the connection state signal. In this embodiment, each main board 10 corresponds to a connection status signal. If the connection status signal is high, it indicates that the main board 10 is not connected to the backplane 11. If the connection status signal is low, it indicates that the main board 10 is connected to the backplane 11. to the backplane11.
所述接收模块202用于接收用户的图像输出命令。例如，接收模块202接收请求输出主板10A的图像信号的图像输出命令。 The receiving module 202 is used for receiving an image output command from a user. For example, the receiving module 202 receives an image output command requesting output of an image signal of the motherboard 10A.
所述控制模块203用于根据确定的连接到背板11的主板10及接收的图像输出命令产生输出控制信号，将输出控制信号及主板10的图像信号传送给数据选择单元12。例如，计算设备1包括主板10A、10B、10C及10D，所述输出控制信号的长度为两位（2bit）。若接收到请求输出主板10A的图像信号的图像输出命令且主板10A连接到背板11，则控制模块203产生输出控制信号“00”；若接收到请求输出主板10B的图像信号的图像输出命令且主板10B连接到背板11，则控制模块203产生输出控制信号“01”；若接收到请求输出主板10C的图像信号的图像输出命令且主板10C连接到背板11，则控制模块203产生输出控制信号“10”；若接收到请求输出主板10D的图像信号的图像输出命令且主板10D连接到背板11，则控制模块203产生输出控制信号“11”。在本实施例中，若图像输出命令所请求输出图像信号的主板10未连接到背板11，则控制模块203发出错误信号。例如，若接收到请求输出主板10A的图像信号的图像输出命令而主板10A未连接到背板11，则控制模块203发出错误信号。 The control module 203 is used to generate an output control signal according to the determined motherboard 10 connected to the backplane 11 and the received image output command, and transmit the output control signal and the image signal of the motherboard 10 to the data selection unit 12 . For example, the computing device 1 includes main boards 10A, 10B, 10C and 10D, and the length of the output control signal is two bits (2 bits). If the image output command of the image signal of the request output main board 10A is received and the main board 10A is connected to the backplane 11, the control module 203 generates an output control signal "00"; if the image output command of the image signal of the request output main board 10B is received and Mainboard 10B is connected to backplane 11, and then control module 203 produces output control signal " 01 "; If receive the image output command of the image signal of request output mainboard 10C and mainboard 10C is connected to backplane 11, then control module 203 produces output control signal Signal “10”; if an image output command requesting to output the image signal of the motherboard 10D is received and the motherboard 10D is connected to the backplane 11, the control module 203 generates an output control signal “11”. In this embodiment, if the main board 10 requested by the video output command to output the video signal is not connected to the backplane 11 , the control module 203 sends an error signal. For example, if an image output command requesting to output an image signal of the motherboard 10A is received and the motherboard 10A is not connected to the backplane 11 , the control module 203 sends an error signal.
数据选择单元12根据所述输出控制信号输出指定主板10的图像信号至背板11。例如，若接收到输出控制信号“00”，则数据选择单元12输出主板10A的图像信号至背板11；若接收到输出控制信号“01”，则数据选择单元12输出主板10B的图像信号至背板11；若接收到输出控制信号“10”，则数据选择单元12输出主板10C的图像信号至背板11；若接收到输出控制信号“11”，则数据选择单元12输出主板10D的图像信号至背板11。 The data selection unit 12 outputs the image signal of the specified mainboard 10 to the backplane 11 according to the output control signal. For example, if the output control signal "00" is received, the data selection unit 12 outputs the image signal of the motherboard 10A to the backplane 11; if the output control signal "01" is received, the data selection unit 12 outputs the image signal of the motherboard 10B to the Backplane 11; if the output control signal "10" is received, the data selection unit 12 outputs the image signal of the mainboard 10C to the backplane 11; if the output control signal "11" is received, the data selection unit 12 outputs the image of the mainboard 10D The signal is sent to the backplane 11.
背板11通过图像接口110将该指定主板10的图像信号传送给显示设备2进行显示。例如，背板11通过图像接口110将主板10A的图像信号传送给显示设备2进行显示。 The backplane 11 transmits the image signal of the specified motherboard 10 to the display device 2 through the image interface 110 for display. For example, the backplane 11 transmits the image signal of the motherboard 10A to the display device 2 through the image interface 110 for display.
参阅图3所示，是本发明图像输出控制方法较佳实施例的流程图。 Referring to FIG. 3 , it is a flow chart of a preferred embodiment of the image output control method of the present invention.
步骤S301，读取模块200读取来自于主板10的连接状态信号。在本实施例中，在每个主板10与背板11相连的接口中设置一个连接状态管脚，用于传输连接状态信号给基板管理控制器100。主板10的连接状态管脚通过一个电阻连接到高电平，背板11的连接状态管脚接地。若主板10未连接到背板11，则主板10传输给基板管理控制器100的连接状态信号为高电平。若主板10连接到背板11，则主板10传输给基板管理控制器100的连接状态信号为低电平。在本实施例中，每个主板10将自身的连接状态信号传输给每个基板管理控制器100。 Step S301 , the reading module 200 reads the connection status signal from the motherboard 10 . In this embodiment, a connection status pin is provided in the interface connecting each main board 10 to the backplane 11 for transmitting a connection status signal to the BMC 100 . The connection state pin of the main board 10 is connected to a high level through a resistor, and the connection state pin of the backplane 11 is grounded. If the motherboard 10 is not connected to the backplane 11 , the connection status signal transmitted from the motherboard 10 to the BMC 100 is at a high level. If the mainboard 10 is connected to the backplane 11 , the connection status signal transmitted from the mainboard 10 to the BMC 100 is at a low level. In this embodiment, each motherboard 10 transmits its own connection status signal to each BMC 100 .
步骤S302，确定模块201根据所述连接状态信号确定连接到背板11的主板10。例如，确定模块201根据所述连接状态信号确定主板10A、10B、10C及10D连接到背板11。在本实施例中，每个主板10对应一个连接状态信号，若连接状态信号为高电平，表明该主板10未连接到背板11，若连接状态信号为低电平，表明该主板10连接到背板11。 In step S302, the determination module 201 determines the main board 10 connected to the backplane 11 according to the connection state signal. For example, the determination module 201 determines that the mainboards 10A, 10B, 10C, and 10D are connected to the backplane 11 according to the connection state signal. In this embodiment, each main board 10 corresponds to a connection status signal. If the connection status signal is high, it indicates that the main board 10 is not connected to the backplane 11. If the connection status signal is low, it indicates that the main board 10 is connected to the backplane 11. to the backplane11.
步骤S303，接收模块202接收用户的图像输出命令。例如，接收模块202接收请求输出主板10A的图像信号的图像输出命令。 In step S303, the receiving module 202 receives an image output command from the user. For example, the receiving module 202 receives an image output command requesting output of an image signal of the motherboard 10A.
步骤S304，控制模块203根据确定的连接到背板11的主板10及接收的图像输出命令产生输出控制信号，将输出控制信号及主板10的图像信号传送给数据选择单元12。例如，计算设备1包括主板10A、10B、10C及10D，所述输出控制信号的长度为两位（2bit）。若接收到请求输出主板10A的图像信号的图像输出命令且主板10A连接到背板11，则控制模块203产生输出控制信号“00”；若接收到请求输出主板10B的图像信号的图像输出命令且主板10B连接到背板11，则控制模块203产生输出控制信号“01”；若接收到请求输出主板10C的图像信号的图像输出命令且主板10C连接到背板11，则控制模块203产生输出控制信号“10”；若接收到请求输出主板10D的图像信号的图像输出命令且主板10D连接到背板11，则控制模块203产生输出控制信号“11”。在本实施例中，若图像输出命令所请求输出图像信号的主板10未连接到背板11，则控制模块203发出错误信号。例如，若接收到请求输出主板10A的图像信号的图像输出命令而主板10A未连接到背板11，则控制模块203发出错误信号。 Step S304 , the control module 203 generates an output control signal according to the determined motherboard 10 connected to the backplane 11 and the received image output command, and transmits the output control signal and the image signal of the motherboard 10 to the data selection unit 12 . For example, the computing device 1 includes main boards 10A, 10B, 10C and 10D, and the length of the output control signal is two bits (2 bits). If the image output command of the image signal of the request output main board 10A is received and the main board 10A is connected to the backplane 11, the control module 203 generates an output control signal "00"; if the image output command of the image signal of the request output main board 10B is received and Mainboard 10B is connected to backplane 11, and then control module 203 produces output control signal " 01 "; If receive the image output command of the image signal of request output mainboard 10C and mainboard 10C is connected to backplane 11, then control module 203 produces output control signal Signal “10”; if an image output command requesting to output the image signal of the motherboard 10D is received and the motherboard 10D is connected to the backplane 11, the control module 203 generates an output control signal “11”. In this embodiment, if the main board 10 requested by the video output command to output the video signal is not connected to the backplane 11 , the control module 203 sends an error signal. For example, if an image output command requesting to output an image signal of the motherboard 10A is received and the motherboard 10A is not connected to the backplane 11 , the control module 203 sends an error signal.
步骤S305，数据选择单元12根据所述输出控制信号输出指定主板10的图像信号至背板11。例如，若接收到输出控制信号“00”，则数据选择单元12输出主板10A的图像信号至背板11；若接收到输出控制信号“01”，则数据选择单元12输出主板10B的图像信号至背板11；若接收到输出控制信号“10”，则数据选择单元12输出主板10C的图像信号至背板11；若接收到输出控制信号“11”，则数据选择单元12输出主板10D的图像信号至背板11。 In step S305, the data selection unit 12 outputs the image signal of the specified main board 10 to the backplane 11 according to the output control signal. For example, if the output control signal "00" is received, the data selection unit 12 outputs the image signal of the motherboard 10A to the backplane 11; if the output control signal "01" is received, the data selection unit 12 outputs the image signal of the motherboard 10B to the Backplane 11; if the output control signal "10" is received, the data selection unit 12 outputs the image signal of the mainboard 10C to the backplane 11; if the output control signal "11" is received, the data selection unit 12 outputs the image of the mainboard 10D The signal is sent to the backplane 11.
步骤S306，背板11通过图像接口110将该指定主板10的图像信号传送给显示设备2进行显示。例如，背板11通过图像接口110将主板10A的图像信号传送给显示设备2进行显示。 In step S306 , the backplane 11 transmits the image signal of the specified mainboard 10 to the display device 2 through the image interface 110 for display. For example, the backplane 11 transmits the image signal of the motherboard 10A to the display device 2 through the image interface 110 for display.
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