Switching controller of mining explosion-proof computer and mining explosion-proof computer

Abstract

The utility model discloses a conversion controller of a mining explosion-proof computer and the mining explosion-proof computer. The conversion controller comprises a control module, an image signal switching module and a USB signal switching module. The control module is electrically connected with the image signal switching module and the USB signal switching module, at least two input ends of the image signal switching module are electrically connected with the hosts respectively, and the output end of the image signal switching module is connected with an external display. At least two input ends of the USB signal switching module are electrically connected with the hosts respectively, and the output end of the USB signal switching module is connected with an external keyboard; and the USB signal switching module is used for switching USB signals of different hosts and outputting the USB signals to the display. According to the switching controller, the USB signals can be switched and input to different hosts, the different hosts in the mining computer can be operated through one keyboard, image signals of the different hosts can be switched and output to the display screen, and one display screen can display image output of the different hosts.

Description

Technical Field

[0001] The present application relates to the technical field of explosion-proof cabinet equipment for mines, and in particular to a conversion controller of an explosion-proof computer for mines and an explosion-proof computer for mines. Background Art

[0002] The general mining explosion-proof computer system includes an explosion-proof computer host, a monitor, a keyboard with a USB interface, and internally integrates an industrial computer, an NVR monitoring host, a switch, a power supply, and an intrinsically safe output interface circuit.

[0003] The intrinsically safe display and the intrinsically safe keyboard are connected to the explosion-proof computer host through the intrinsically safe output interface circuit, and can input control signals under explosion-proof conditions.

[0004] The existing explosion-proof computer host is provided with multiple intrinsically safe output interfaces, which respectively correspond to the integrated industrial computer, switch and monitoring host.

[0005] Therefore, different integrated hosts need to be configured with displays and keyboards respectively to realize display signal output and USB signal communication. Or when controlling different integrated hosts, unplug and plug the HDMI cable of the display or the USB cable of the keyboard to switch.

[0006] In order to avoid the messy configuration of multiple keyboards and monitors, in the existing explosion-proof computers, other hosts can communicate with the industrial computer, and then the industrial computer acts as a medium to control other hosts. That is, the industrial computer is installed with software to control the NVR monitoring host. When switching control, the control command is sent to the NVR monitoring host through the industrial computer, and then the NVR monitoring host sends the monitoring screen to the industrial computer, and the industrial computer sends it to the display through the output interface.

[0007] However, since the image signal of the NVR needs to be forwarded through the industrial computer, the above control solution has a problem of high delay and also increases the hardware occupancy rate of the industrial computer.

[0008] In order to avoid occupying the computing power of the industrial computer, the present application provides a conversion controller for a mining explosion-proof computer. Summary of the invention

[0009] In order to overcome the problems existing in the related art, the present application provides a conversion controller for a mining explosion-proof computer, comprising: a control module, an image signal switching module and a USB signal switching module;

[0010] The control module is electrically connected to the image signal switching module and the USB signal switching module, and the control module is used to send an image signal switching instruction and a USB signal switching instruction;

[0011] At least two input ends of the image signal switching module are electrically connected to each host, and the output end is connected to an external display; the image signal switching module is used to switch the image signals of different hosts to be output to the display;

[0012] At least two input ends of the USB signal switching module are electrically connected to each host, and the output end is connected to an external keyboard; the USB signal switching module is used to switch the USB signals of different hosts to be output to the display.

[0013] In one embodiment, the switching controller further includes: a light conversion module;

[0014] The light conversion module is disposed between the image signal switching module and the external display, and is used for converting the image signal into a light signal.

[0015] In one implementation, the input end of the image signal switching module is an HDMI interface, and the output end is an optical interface;

[0016] The external display is provided with an optical interface.

[0017] In one embodiment, the switching controller further includes: a USB intrinsically safe isolation module; the USB intrinsically safe isolation module is arranged between the USB signal switching module and the external keyboard, and the USB intrinsically safe isolation module is provided with a USB isolation chip.

[0018] In one implementation, the input end of the USB isolation chip is connected to the USB data line; the output end of the USB isolation chip is connected to the USB signal switching module.

[0019] In one implementation, the control module is communicatively connected to an industrial computer in a host, and the industrial computer is used to control the control module to send the image signal switching instruction and the USB signal switching instruction.

[0020] In one implementation, the control module communicates with the industrial computer via a communication serial port.

[0021] In one implementation, the USB signal switching instruction is used to switch the USB signal to the NVR host according to a configured duration.

[0022] In one implementation, the control module is an MCU.

[0023] A second aspect of the present application provides an explosion-proof computer for mining, which integrates an industrial computer, an NVR monitoring host, a switch, and a conversion controller described in any one of the above embodiments.

[0024] The technical solution provided by this application may have the following beneficial effects:

[0025] The switching controller of the present application can switch the USB signal input to different hosts, so that one keyboard can operate different hosts in the mining computer. The switching controller can also switch the image signals of different hosts to the output display screen, so that one display screen can display the image output of different hosts. Compared with the solution using an industrial computer as a medium, the switching controller of the embodiment of the present application does not need to occupy the CPU and other hardware of the industrial computer. At the same time, because the switching controller directly sends the image signal to the display, the delay of the image signal after switching is lower than that of the original solution.

[0026] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0028] Figure 1 This is a logical structure diagram of the switching controller shown in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0030] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0031] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] Embodiment 1

[0033] In the existing explosion-proof computer image and USB signal control solution, the image signal of the NVR needs to be forwarded through the industrial computer, which has a high delay problem and also increases the hardware occupancy rate of the industrial computer. At the same time, the keyboard signal switching of the NVR monitoring host also needs to be realized by plugging and unplugging the USB cable.

[0034] In order to avoid occupying the computing power of the industrial computer, the present application provides a conversion controller for a mining explosion-proof computer, such as Figure 1 As shown, it includes: a control module, an image signal switching module and a USB signal switching module.

[0035] Understandably, Figure 1 The connecting line with an arrow indicates the transmission direction of the data signal, and the connecting line without an arrow indicates the transmission direction of the control signal.

[0036] Specifically, the control module is electrically connected to the image signal switching module and the USB signal switching module, and the control module is used to send an image signal switching instruction and a USB signal switching instruction. The control module is an MCU.

[0037] Specifically, at least two input ends of the image signal switching module are electrically connected to respective hosts, and the output end of the image signal switching module is connected to an external display.

[0038] In the embodiment of the present application, the image signal switching module is used to switch the image signals of different hosts to be output to the display.

[0039] Specifically, at least two input ends of the USB signal switching module are electrically connected to each host, and the output end of the USB signal switching module is connected to an external keyboard.

[0040] In the embodiment of the present application, the USB signal switching module is used to switch the USB signals of different hosts to be output to the display.

[0041] Furthermore, the conversion controller further comprises: a light conversion module. The light conversion module is arranged between the image signal switching module and the external display, and is used for converting the image signal into a light signal.

[0042] Therefore, the input end of the image signal switching module is an HDMI interface, and the output end is an optical interface. The external display is provided with an optical interface.

[0043] In the implementation of the present application, the image signal switching module and each host are connected via an HDMI cable, and then the image signal switching module and an external display are connected via an optical fiber cable.

[0044] Furthermore, the conversion controller further comprises: a USB intrinsically safe isolation module. The USB intrinsically safe isolation module is arranged between the USB signal switching module and the external keyboard, and the USB intrinsically safe isolation module is provided with a USB isolation chip.

[0045] In the embodiment of the present application, the external keyboard is an intrinsically safe keyboard, and the intrinsically safe keyboard and the conversion controller are connected via an intrinsically safe USB data cable. Therefore, the USB isolation chip of the conversion controller is used to isolate the signal.

[0046] Specifically, the input end of the USB isolation chip is connected to the USB data line; the output end of the USB isolation chip is connected to the USB signal switching module.

[0047] In one implementation, the control module may instruct to send the image signal switching instruction and the USB signal switching instruction by switching a switch circuit.

[0048] In another implementation, the control module may instruct to send the image signal switching instruction and the USB signal switching instruction through software or a backend page on the industrial computer.

[0049] In the embodiment of the present application, the industrial computer is installed with configuration software, and the control module is connected to the industrial computer in the host computer for communication. The communication serial port is RS485 or RS232.

[0050] Since the NVR monitoring host is an embedded device, its operating system is mostly customized based on Linux, which is different from the Windows system of the industrial computer. Therefore, it is necessary to re-code the configuration software when installing it on the NVR monitoring host.

[0051] Therefore, in the embodiment of the present application, the USB signal switching instruction switches the USB signal and outputs it to the NVR host according to the configured duration.

[0052] Specifically, the USB signal switching module of the conversion controller inputs the USB signal to the industrial computer by default. When you need to use the keyboard to control the NVR monitoring host, click the button to switch to the NVR monitoring host on the configuration software and set the switching duration. After completion, the USB signal will be input to the NVR monitoring host to achieve switching control. Subsequently, the industrial computer starts timing, and when the set switching duration ends, it sends a USB signal switching command to switch the USB signal back to the industrial computer.

[0053] In the embodiment of the present application, the switching controller can switch the USB signal input to different hosts, so that one keyboard can operate different hosts in the mining computer. The switching controller can also switch the image signals of different hosts to the output display screen, so that one display screen can display the image output of different hosts. Compared with the solution using an industrial computer as a medium, the switching controller of the embodiment of the present application does not need to occupy the CPU and other hardware of the industrial computer. At the same time, because the switching controller directly sends the image signal to the display, the delay of the image signal after switching is lower than that of the original solution.

[0054] Embodiment 2

[0055] A mining explosion-proof computer integrates an industrial computer, an NVR monitoring host, a switch and the conversion controller described in the first embodiment.

[0056] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated again here.

[0057] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A conversion controller for an explosion-proof computer for mining, characterized in that: include: Control module, image signal switching module and USB signal switching module; The control module is electrically connected to the image signal switching module and the USB signal switching module, and the control module is used to send an image signal switching instruction and a USB signal switching instruction; At least two input ends of the image signal switching module are electrically connected to each host, and the output end is connected to an external display; the image signal switching module is used to switch the image signals of different hosts to be output to the display; At least two input terminals of the USB signal switching module are electrically connected to each host, and the output terminal is connected to an external keyboard; The USB signal switching module is used to switch the USB signals of different hosts to be output to the display.

2. A conversion controller for a mining explosion-proof computer according to claim 1, characterized in that: Also includes: Light conversion module; The light conversion module is disposed between the image signal switching module and the external display, and is used for converting the image signal into a light signal.

3. A conversion controller for a mining explosion-proof computer according to claim 2, characterized in that: The input end of the image signal switching module is an HDMI interface, and the output end is an optical interface; The external display is provided with an optical interface.

4. A conversion controller for a mining explosion-proof computer according to claim 2, characterized in that: Also includes: USB intrinsically safe isolation module; The USB intrinsically safe isolation module is arranged between the USB signal switching module and the external keyboard, and the USB intrinsically safe isolation module is provided with a USB isolation chip.

5. A conversion controller for a mining explosion-proof computer according to claim 4, characterized in that: The input end of the USB isolation chip is connected to the USB data line; the output end of the USB isolation chip is connected to the USB signal switching module.

6. A conversion controller for a mining explosion-proof computer according to claim 1, characterized in that: The control module is communicatively connected to an industrial computer in a host, and the industrial computer is used to control the control module to send the image signal switching instruction and the USB signal switching instruction.

7. A conversion controller for a mining explosion-proof computer according to claim 6, characterized in that: The control module communicates with the industrial computer via a communication serial port.

8. A conversion controller for a mining explosion-proof computer according to claim 6, characterized in that: The USB signal switching instruction is used to switch the USB signal and output it to the NVR monitoring host according to the configured duration.

9. A conversion controller for a mining explosion-proof computer according to claim 1, characterized in that: The control module is MCU.

10. An explosion-proof computer for mining, characterized in that: An industrial computer, an NVR monitoring host, a switch and a conversion controller as claimed in any one of claims 1 to 9 are integrated.

Images