CN112061176A - Remote control method for train display - Google Patents
Remote control method for train display Download PDFInfo
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- CN112061176A CN112061176A CN202010987049.6A CN202010987049A CN112061176A CN 112061176 A CN112061176 A CN 112061176A CN 202010987049 A CN202010987049 A CN 202010987049A CN 112061176 A CN112061176 A CN 112061176A
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- 230000009471 action Effects 0.000 claims abstract description 6
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- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000000644 propagated effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/009—On-board display devices
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Abstract
The invention provides a method for remotely controlling a train display, which comprises the following steps: the target machine display sends external data through the Ethernet; the PC end display receives the external data; the PC end display displays a real-time picture on the target machine display; the PC end display collects the ID of the key needing to be responded; the PC end display sends the key ID to the target machine through the Ethernet; and the target machine inquires the key ID and responds to the action corresponding to the key ID.
Description
Technical Field
The invention relates to train display control, in particular to a train display control method without a frame buffer interface.
Background
In order to facilitate debugging of the display, whether a display page of the display is accurately displayed needs to be checked in real time, if the display is at a far end, the display needs to go to the far end display to check the page state of the display, or corresponding functions of the display are operated, so that whether the function of the display is normal is verified.
This is because the conventional display generally does not have a frame buffer interface, and cannot directly acquire page data from a target machine and send the page data to a remote desktop, so that the debugging of the remote display is currently implemented, and under the conventional technical conditions, the purpose of verifying the function of the display can be achieved only by going to the remote side to view or operate the display.
In the above method, if there is a problem in the software, in the case of repeated modification of the software, a lot of time is required to be consumed to view or operate the display, so a faster method is required to implement remote debugging of the display.
Disclosure of Invention
In order to solve the problem, the invention provides a display page approximate remote desktop function based on data, and the method can quickly and efficiently realize remote debugging of the display of the target computer.
The invention provides a method for remotely controlling a train display, which comprises the following steps:
the target machine display sends external data through the Ethernet;
the PC end display receives the external data;
the PC end display displays a real-time picture on the target machine display;
the PC end display collects the ID of the key needing to be responded;
and the PC end display sends the key ID to the target machine through the Ethernet.
And the target machine inquires the key ID and responds to the action corresponding to the key ID.
In one embodiment, the target machine display is a display without a frame buffer interface.
In one embodiment, the external data is MVB data.
In one embodiment, the target machine display is in communication with the PC-side display as a server.
In one embodiment, the PC-side display communicates as a client with the target machine display.
In one embodiment, the PC-side display receives and displays the external data or transmits the key ID through PC-side display software.
In one embodiment, the responding to the action corresponding to the key ID includes responding to a callback function corresponding to the key ID.
In one embodiment, the target machine display sending external data over ethernet comprises: and the target machine display sends external data through Socket communication.
In one embodiment, the sending the key ID to the target device via the ethernet network by the PC-side display includes: and the PC end display sends the key ID to the target machine through Socket communication.
The method for remote real-time display and control is mainly applied to the display without a frame buffer interface. The invention has the following beneficial technical effects:
1) the invention adopts the display to transmit data to the outside in real time, realizes the real-time transmission of similar pictures and provides an original model for a remote display mechanism without a frame cache interface.
2) The method for transmitting the keyboard ID by the PC terminal provides important reference for the interactive operation of the callback mechanism.
Drawings
The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings. It is to be noted that the appended drawings are intended as examples of the claimed invention. In the drawings, like reference characters designate the same or similar elements.
FIG. 1 illustrates a flow of a target machine sending data as a server according to an embodiment of the invention;
fig. 2 shows a flowchart of collecting key events by the PC-side display according to an embodiment of the present invention.
Detailed Description
The detailed features and advantages of the present invention are described in detail in the detailed description which follows, and will be sufficient for anyone skilled in the art to understand the technical content of the present invention and to implement the present invention, and the related objects and advantages of the present invention will be easily understood by those skilled in the art from the description, claims and drawings disclosed in the present specification.
The display is a sub-device in the train network control system, and if the display page can display the picture of the target machine and operate the target machine on the local machine in the debugging process, great convenience is brought to the debugging of the display.
Because the existing display does not have a frame cache interface, the page data can not be directly acquired from the target machine and sent to the remote desktop, and under the existing technical condition, the purpose of verifying the function of the display can be achieved only by going to a remote end to look over or operating the display.
If the debugging work of the display is carried out in the above way, the following disadvantages exist:
firstly, after software modification, the page state confirmation process is relatively complicated;
secondly, after the software is modified, the process of confirming the page operation result is complicated.
In summary, the existing method has the problem that the confirmation of the page state or the operation result of the display after software modification is more complicated, the invention provides a method for transmitting the data of the target machine and the keyboard event of the PC end through socket communication, and the aims of displaying the picture of the target machine locally in real time and operating the target machine can be achieved.
The technical solution of the present application will be described in detail below with reference to the accompanying drawings. Hereinafter, the target machine display refers to a remote display whose screen needs to be displayed and manipulated in the local display, and the target machine may be regarded as a server. The PC side display refers to a local display for displaying and controlling a target machine display, and the PC side can be regarded as a client side.
The invention provides a remote control method for a train display. The target machine display is used as a server to send the external data to the display of the PC end in real time, the display of the PC end reflects the display state of the target machine in real time according to the data, meanwhile, when the PC end operates the display keyboard, the ID value of the keyboard on the display of the PC end is sent to the target machine display, and after the target machine receives the value, the target machine responds to the callback function corresponding to the ID value of the key.
Fig. 1 shows a flow of a target machine sending data as a server according to an embodiment of the present invention. The target machine display acquires external MVB (multifunction vehicle bus) data, sends the MVB data to PC side display software through the Ethernet in real time, and displays the real-time state as shown in figure 1. The data sending process comprises the following steps:
step 101: the target machine display sends external data through the Ethernet;
102, receiving external data by a PC end display;
step 103: and the PC end display displays the display state or the picture of the target machine display in real time.
Fig. 2 shows a flowchart of collecting key events by the PC-side display according to an embodiment of the present invention. And the PC-side display software transmits the key ID aiming at the keyboard event, and the target machine inquires and executes a callback function corresponding to the key ID, so that the aim of controlling the operation of the remote display is fulfilled. The acquisition process comprises the following steps:
step 201: the PC side display (client) collects the key ID needing to respond. For example, when a user operates a display screen of a target device displayed on a PC monitor, that is, presses a touch key on a screen of the PC monitor, PC monitor software acquires an ID corresponding to the key.
Step 202: and the PC side display sends the key ID to the target machine through the Ethernet.
Step 203: the target machine inquires the key ID and responds to the action corresponding to the key ID.
By adopting the method, the page state of the display of the target machine can be monitored in real time at a far end, and the display picture can be remotely operated.
It should be noted that the operations of the PC-side display involved in the steps 101-103, 201-203 are executed by the PC-side display software.
In one embodiment, the target machine display is a display without a frame buffer interface.
In one embodiment, the external data is MVB data.
In one embodiment, the target machine display is in communication with the PC-side display as a server.
In one embodiment, the PC-side display communicates as a client with the target machine display.
In one embodiment, the PC-side display receives and displays the external data or transmits the key ID through PC-side display software.
In one embodiment, the responding to the action corresponding to the key ID includes responding to a callback function corresponding to the key ID.
In one embodiment, the target machine display sending external data over ethernet comprises: and the target machine display sends external data through Socket communication.
In one embodiment, the sending the key ID to the target device via the ethernet network by the PC-side display includes: and the PC end display sends the key ID to the target machine through Socket communication.
The method for remote real-time display and control is mainly applied to the display without a frame buffer interface. The invention has the following beneficial technical effects:
1) the invention adopts the display to transmit data to the outside in real time, realizes the real-time transmission of similar pictures and provides an original model for a remote display mechanism without a frame cache interface.
2) The method for transmitting the keyboard ID by the PC terminal provides important reference for the interactive operation of the callback mechanism.
The terms and expressions which have been employed herein are used as terms of description and not of limitation. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Moreover, those skilled in the art will appreciate that aspects of the present application may be illustrated and described in terms of several patentable species or situations, including any new and useful combination of processes, machines, manufacture, or materials, or any new and useful improvement thereon. Accordingly, various aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media.
A computer readable signal medium may comprise a propagated data signal with computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, and the like, or any suitable combination. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code on a computer readable signal medium may be propagated over any suitable medium, including radio, electrical cable, fiber optic cable, RF, or the like, or any combination of the preceding.
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
Also, it should be noted that although the present invention has been described with reference to the current specific embodiments, it should be understood by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes or substitutions may be made without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments be included within the scope of the claims of the present application.
Claims (9)
1. A method of remote control of a train display, the method comprising:
the target machine display sends external data through the Ethernet;
the PC end display receives the external data;
the PC end display displays a real-time picture on the target machine display;
the PC end display collects the ID of the key needing to be responded;
the PC end display sends the key ID to the target machine through the Ethernet; and
and the target machine inquires the key ID and responds to the action corresponding to the key ID.
2. The method of claim 1, wherein the target machine display is a display without a frame buffer interface.
3. The method of claim 1, wherein the external data is MVB data.
4. The method of claim 1 wherein said target machine display is in communication with said PC-side display as a server.
5. The method of claim 1, wherein the PC-side display communicates as a client with the target machine display.
6. The method for remote control of a train display of claim 1, wherein the PC-side display receives and displays the external data or transmits the key ID through PC-side display software.
7. The method of claim 1, wherein the act of responding to the key ID comprises responding to a callback function associated with the key ID.
8. The method of claim 1, wherein the transmitting external data by the target machine display through the ethernet comprises:
and the target machine display sends external data through Socket communication.
9. The method of claim 1, wherein the PC-side display transmitting the key ID to the target machine via ethernet comprises:
and the PC end display sends the key ID to the target machine through Socket communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987049.6A CN112061176A (en) | 2020-09-18 | 2020-09-18 | Remote control method for train display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010987049.6A CN112061176A (en) | 2020-09-18 | 2020-09-18 | Remote control method for train display |
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| CN112061176A true CN112061176A (en) | 2020-12-11 |
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