CN116229881A - Display data protection method, signal generation method, device and system of display screen - Google Patents

Display data protection method, signal generation method, device and system of display screen Download PDF

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Publication number
CN116229881A
CN116229881A CN202211736584.XA CN202211736584A CN116229881A CN 116229881 A CN116229881 A CN 116229881A CN 202211736584 A CN202211736584 A CN 202211736584A CN 116229881 A CN116229881 A CN 116229881A
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China
Prior art keywords
box
opening
box door
door
data processing
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CN202211736584.XA
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Chinese (zh)
Inventor
王松
韦桂锋
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Xian Novastar Electronic Technology Co Ltd
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Xian Novastar Electronic Technology Co Ltd
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Priority to CN202211736584.XA priority Critical patent/CN116229881A/en
Publication of CN116229881A publication Critical patent/CN116229881A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The application is applicable to the technical field of information security, and provides a display data protection method, a signal generation method, a device and a system for a display screen, wherein the display data protection method comprises the following steps: and receiving a first box door level signal comprising the opening and closing states of the box doors of the data processing box and all the box door opening and closing states, and stopping outputting the display data if the first box door level signal is an abnormal level signal. According to the scheme, the opening and closing states of the box doors of all the box doors in the display screen are monitored to control the output of display data, so that the problem that the cinema copyrights are infringed and pirated films occur due to the fact that the display screen steals the display data from the outside when playing film sources is obtained.

Description

Display data protection method, signal generation method, device and system of display screen
Technical Field
The application belongs to the technical field of information security, and particularly relates to a display data protection method, a signal generation device and a display data protection system for a display screen.
Background
In recent years, the audio-visual industry chain is gradually developing to ultra-high definition, and the ultra-high definition display screen can meet the requirements of audience on large pictures and realistic sensation. Aiming at the existing demand, the original traditional cinema showing mode based on the projector mode inevitably faces the technical challenges and cost pressure brought by a larger light valve system in the era that the audiovisual industry chain gradually develops to ultra-high definition. Therefore, the LED movie screen is gradually derived in the field of the ultra-high definition display screen, and compared with the traditional cinema showing mode, the LED movie screen has great advantages in the technical indexes of display brightness, contrast, color gamut, ultra-high definition and the like, and can realize the image expression with more stereoscopic impression, reality, full detail and strong realistic impression.
In the use process of the LED movie screen, the display data are required to be transmitted to each display module by using a data line, and lawless persons often steal the display data in the process of transmitting the display data by using the data line so as to acquire an encryption-free source film source, so that the copyright of a cinema is infringed, and the condition of pirating the film occurs.
Disclosure of Invention
The embodiment of the application provides a display data protection method, a signal generation method, a device and a system of a display screen, which can solve the problem that the copyright of a cinema is infringed and pirated films are generated due to the fact that the display data are stolen from the outside when a film source is played by the display screen and then an encryption-free film source is acquired.
A first aspect of an embodiment of the present application provides a display data protection method of a display screen, which is applied to a data processing device, where the data processing device is configured to process a data source of the display screen to obtain the display data; the display screen comprises a data processing machine box and at least one box body, wherein at least one first contact switch is arranged on the box body, and at least one second contact switch is arranged on the data processing machine box; the display data protection method comprises the following steps:
receiving first box door level signals comprising the opening and closing states of the box doors of the data processing box and the opening and closing states of the box doors of all the box bodies, wherein the first box door level signals refer to level signals generated according to the opening and closing states of the box doors of the data processing box and second box door level signals, the second box door level signals refer to level signals generated according to the opening and closing states of the box doors of all the box bodies, the opening and closing states of the box doors of the box bodies are determined according to first switch level signals corresponding to the first contact switches, and the opening and closing states of the box doors of the data processing box are determined according to second switch level signals of all the second contact switches;
And if the first box door level signal is an abnormal level signal, stopping outputting the display data.
A second aspect of the embodiments of the present application provides a signal generating method, which is applied to a main detection device connected to a data processing device, where the data processing device is located in a data processing chassis, and the main detection device is connected to at least one second contact switch installed on the data processing chassis and is located in the data processing chassis; the signal generation method comprises the following steps:
receiving a second box door level signal, wherein the second box door level signal is a level signal generated according to box door opening and closing states of all box bodies in a display screen, the box door opening and closing states of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the first contact switches are arranged on box doors of all the box bodies;
detecting the opening and closing states of all the second contact switches, and determining the opening and closing states of the box doors of the data processing box;
and generating a first box door level signal based on the opening and closing state of the box door of the data processing box and the second box door level signal, and sending the first box door level signal to the data processing equipment.
A third aspect of the embodiments of the present application provides a signal generating method applied to a slave detection device connected to the box body and a master detection device, where the slave detection device is connected to a plurality of first contact switches installed on a corresponding box body; the signal generation method comprises the following steps:
detecting first switch level signals of a plurality of first contact switches to obtain the opening and closing states of the doors of all the boxes;
and generating a second box door level signal according to the box door opening and closing states of all the box bodies, and sending the second box door level signal to main detection equipment.
A fourth aspect of the embodiments of the present application provides a display data protection system of a display screen, where the display data protection system includes a data processing device, a master detection device, and at least one slave detection device;
the data processing equipment is used for receiving first box door level signals comprising the opening and closing states of the box doors of the data processing box and the opening and closing states of the box doors of all the box bodies, wherein the first box door level signals refer to level signals generated according to the opening and closing states of the box doors of the data processing box and second box door level signals, the second box door level signals refer to level signals generated according to the opening and closing states of the box doors of all the box bodies, the opening and closing states of the box doors of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the opening and closing states of the box doors of the data processing box are determined according to second switch level signals of all the second contact switches; and if the first box door level signal is an abnormal level signal, stopping outputting the display data.
The main detection equipment is used for receiving second box door level signals, wherein the second box door level signals are level signals generated according to box door opening and closing states of all box bodies in the display screen, the box door opening and closing states of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the first contact switches are arranged on box doors of all the box bodies; detecting the opening and closing states of all the second contact switches, and determining the opening and closing states of the box doors of the data processing box; and generating a first box door level signal based on the opening and closing state of the box door of the data processing box and the second box door level signal, and sending the first box door level signal to the data processing equipment.
The slave detection equipment is used for detecting first switch level signals of a plurality of first contact switches to obtain the opening and closing states of the box doors of all the box bodies; generating a second box door level signal according to the box door opening and closing states of all the box bodies; and sending the second box door level signal to main detection equipment.
A fifth aspect of the embodiments of the present application provides a display data protection device for a display screen, including:
The first receiving module is used for receiving first box door level signals comprising the opening and closing states of the box doors of the data processing box and the opening and closing states of the box doors of all the box bodies, the first box door level signals are level signals generated according to the opening and closing states of the box doors of the data processing box and second box door level signals, the second box door level signals are level signals generated according to the opening and closing states of the box doors of all the box bodies, the opening and closing states of the box doors of the box bodies are determined according to first switch level signals corresponding to the first contact switches, and the opening and closing states of the box doors of the data processing box are determined according to second switch level signals of all the second contact switches;
and the data protection module is used for stopping outputting the display data if the first box door level signal is an abnormal level signal.
A sixth aspect of embodiments of the present application provides a signal generating apparatus, including:
the second receiving module is used for receiving second box door level signals, wherein the second box door level signals are level signals generated according to box door opening and closing states of all box bodies in the display screen, the box door opening and closing states of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the first contact switches are arranged on box doors of all the box bodies;
The first detection module is used for detecting the opening and closing states of all the second contact switches and determining the opening and closing states of the box doors of the data processing box;
the first generation module is used for generating a first box door level signal based on the opening and closing state of the box door of the data processing box and the second box door level signal, and sending the first box door level signal to the data processing equipment.
A seventh aspect of embodiments of the present application provides a signal generating apparatus, including:
the second detection module is used for detecting first switch level signals of the plurality of first contact switches to obtain the opening and closing states of the doors of all the boxes;
and the second generation module is used for generating a second box door level signal according to the box door opening and closing states of all the box bodies and sending the second box door level signal to the main detection equipment.
An eighth aspect of the embodiments of the present application provides an electronic device, including: the display data protection method of the display screen according to the first aspect, the signal generation method according to the second aspect, or the signal generation method according to the third aspect are implemented by a memory, a processor, and a computer program stored in the memory and executable on the processor when the processor executes the computer program.
A ninth aspect of the embodiments of the present application provides a computer-readable storage medium storing a computer program, which when executed by a processor, implements the display data protection method of the display screen described in the first aspect, implements the signal generation method described in the second aspect, or implements the signal generation method described in the third aspect.
A tenth aspect of embodiments of the present application provides a computer program product, which when executed on an electronic device, causes the electronic device to perform the display data protection method of the display screen described in the first aspect, or implement the signal generation method described in the second aspect, or implement the signal generation method described in the third aspect.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
the data processing device is used for processing a data source of a display screen to obtain display data, then outputting the display data to a sending card to be transmitted to a receiving card corresponding to an LED lamp box, and the display data is stolen and often occurs in the transmission process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a display data protection system of a display screen according to an embodiment of the present application;
fig. 2 is a flow chart of a display data protection method of a display screen according to a second embodiment of the present application;
fig. 3 is a flow chart of a signal generating method according to a third embodiment of the present application;
fig. 4 is a flow chart of a signal generating method according to a fourth embodiment of the present application;
fig. 5 is a schematic structural diagram of a display data protection device of a display screen according to a fifth embodiment of the present application;
fig. 6 is a schematic structural diagram of a signal generating device according to a sixth embodiment of the present application;
fig. 7 is a schematic structural diagram of a signal generating device according to a seventh embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an eighth embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In order to solve the problem that the outside steals display data when a film source is played, the application provides a display data protection method of a display screen, which is applied to data processing equipment for processing the display screen data source to obtain the display data, the data processing equipment can obtain the display data after processing the data source, and then the display data is output to a sending card to be transmitted to a receiving card in butt joint of an LED lamp box so that the display screen can conveniently display the display data.
The display data protection method provided by the application can receive first box door level signals comprising the opening and closing states of the box doors of the data processor box and the opening and closing states of all the box doors, wherein the box door opening and closing states are determined based on the opening and closing level signals of the corresponding contact switch, if the opening and closing signals of the contact switch are abnormal level signals, the box door opening and closing states are abnormal states, the determined box door level signals are abnormal level signals, whether the first box door level signals are abnormal level signals can be judged based on the abnormal level signals, if the first box door level signals are abnormal level signals, the box doors of all the box doors and the box doors of the data processor box exist, the box doors of which the box door opening and closing states are abnormal states are dangerous for displaying data leakage, and therefore output of the display data is stopped at the moment, the display data can be protected, and the problem that external world steals the display data when a film source is played is solved.
It should be understood that the sequence number of each step in this embodiment does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.
In order to illustrate the technical solution of the present application, the following description is made by specific embodiments.
Referring to fig. 1, a schematic structural diagram of a display data protection system of a display screen according to an embodiment of the present application is shown. As shown in fig. 1, the display data protection system of the display screen includes a data processing device, a master detection device, and at least one slave detection device.
When the problem of theft of display data by the outside world when playing a film source is solved, the slave detection equipment can detect first switch level signals of a plurality of first contact switches connected with the slave detection equipment to obtain the opening and closing states of the box doors of all the box bodies, then generates second box door level signals according to the opening and closing states of the box doors of all the box bodies, and sends the generated second box door level signals to the master detection equipment, so that the master detection equipment can generate first box door level signals for judging whether the display data stops outputting or not based on the second box door level signals.
The main detection equipment receives the second box door level signals and simultaneously needs to detect the opening and closing states of the plurality of second contact switches to determine the box door opening and closing states of the data processing box where the main detection equipment is located, and because the second box door level signals comprise the box door opening and closing states of all the boxes, the main detection equipment can generate first box door level signals according to the box door opening and closing states of the data processing box and the box door opening and closing states of all the boxes, and sends the first box door level signals comprising the box door opening and closing states of the data processing box and the box door opening and closing states of all the boxes to the data processing equipment so that the data processing equipment can judge whether display data stop outputting according to the first box door level signals. When the data processing device judges that the first box door level signal is an abnormal level signal, the data processing device stops displaying the data of the data so as to protect the display data.
The first box door level signal based on the opening and closing states of the box doors of the data processing box and the opening and closing states of all box doors can solve the problem that the display screen steals display data in the outside when playing film sources, then the encrypted film sources are acquired, so that cinema copyrights are infringed, and pirated films are generated.
In the security authentication of DCI (Digital Copyright Identifier, the unique identifier of digital right), in order to prevent the display data from being stolen, the display screen body and the chassis where the transmitting card is located are required to be integrated, and any trace leakage cannot occur on the screen body, so as shown in fig. 1, the display screen in the application includes a data processing chassis and at least one of the cases, and the data processing chassis is connected with one of the cases and is integrated with the case. The data processing machine box comprises data processing equipment, main detection equipment, a sending card and at least one second contact switch, wherein the equipment and the at least one second contact switch are positioned in the data processing machine box, and wiring is not leaked; the display screen is formed by splicing at least one box body, each box body comprises a receiving card, a slave detection device and a plurality of first contact switches, a data line is needed to be used between the slave detection device and the master detection device for signal transmission, the data line is hidden in the combination of the data processing machine box and the box body, namely, the data processing machine box and the box body are integrally installed, for example, the data processing machine box can be correspondingly installed on the back of the box body.
The secondary detection equipment in each box body is connected with a plurality of corresponding first contact switches and is used for detecting first switch level signals of the corresponding plurality of first contact switches and judging whether the first switch level signals are abnormal or not so as to determine whether the box door of the corresponding box body is opened or not.
It should be understood that each slave detecting device is provided with a micro control unit (Microcontroller Unit, MCU) for judging whether the door of the corresponding box is opened or not according to the first switch level signals corresponding to the first contact switches. That is, if the abnormal level signal exists among the plurality of first switch level signals, it is determined that there is an abnormality in the door open/close state of the box corresponding to the first contact switch. Accordingly, the slave detection device can determine the opening and closing states of the doors of each box body according to the first switch level signals corresponding to the first contact switches.
The main detection equipment in the data processing case is connected with the at least one second contact switch and is used for detecting the opening and closing states (namely switch level signals) of the second contact switches and judging whether the opening and closing states of the second contact switches are abnormal or not so as to determine whether the case door of the data processing case is opened or not.
It should be understood that the main detecting device is also provided with a micro control unit MCU, which can be used for judging whether the door of the data processing cabinet is opened according to the open/close states of the plurality of second contact switches. That is, the open-close states of the plurality of second contact switches may be determined according to the switch level signals of the second contact switches. If the abnormal level signals exist in the switch level signals of the plurality of second contact switches, the abnormal state of the opening and closing states of the door of the data processing case can be determined. Accordingly, the main detection device can determine the opening and closing state of the door of the data processing case according to the second switch level signal corresponding to the second contact switch.
Similarly, the main detection device may further determine the door opening and closing states of all the boxes according to the received second door level signal, and when determining that there is an abnormality in the door opening and closing states of the boxes, combine the door opening and closing states of the data processing box to generate a first door level signal, where the first door level signal is an abnormal level signal, and the data processing box immediately stops outputting display data according to the abnormal level signal, so that each box in the display screen locks the screen (i.e. is in a black screen state).
For example, since the master detection device may determine that the door opening and closing states of the respective boxes are abnormal, the corresponding slave detection device may be accessed through the receiving card in each box to obtain the door abnormality time and the door abnormality position of the abnormal door, and store the door abnormality time and the door abnormality position in the system log. The slave detection device, which detects that the first switch level signal corresponding to the first contact switch is an abnormal level signal, can disconnect the power supply of the self-independent power supply system after sending the abnormal time of the box door of the abnormal box door and the abnormal position of the box door to the corresponding receiving card so as to save the electric quantity of the self-independent power supply. And when the external power supply of the display screen is electrified again, restarting the power supply system of the self-independent power supply.
If the main detection device detects that the opening and closing states of the door of the data processing machine case are abnormal, the main detection device can be accessed through a sending card in the data processing machine case to acquire the door abnormal time and the door abnormal position of the data processing machine case, namely, the sending card can send a door abnormal acquisition instruction of the data processing machine case to the main detection device, the main detection device responds to the door abnormal acquisition instruction of the data processing machine case, generates door abnormal information comprising the door abnormal time and the door abnormal position of the data processing machine case, sends the door abnormal information to the sending card, and stores the door abnormal information in a system log so as to facilitate subsequent maintenance and viewing.
For example, as shown in fig. 1, the display screen is formed by splicing a plurality of boxes, and one box is connected with the data processing box, and the connection mode may be to install the data processing box on the back of the box, and combine the box into a whole, and the wires between the two boxes are all arranged inside, so as to ensure no wire leakage.
In the above structure, assuming that the door of a box is opened, if protection of display data is to be achieved, the specific implementation process may be: first, the master detection device and the plurality of slave detection devices respectively detect the switch level signals of the correspondingly connected contact switches, under normal conditions, the box door is closed, the contacts are in an open state, and if the box door is opened, the contacts are in a closed state. That is, if it is detected that the contact switch is in the off state, the switch level signal received by the detection device is a low level signal. If the box door of one box body is opened, the corresponding slave detection equipment of the box door detects that low-level signals exist in the first switch level signals of the corresponding first contact switches, wherein the slave detection equipment can transmit the detected low-level signals through a mode of differential level signals, the corresponding slave detection equipment of the opened box door transmits the detected low-level signals to the slave detection equipment connected with the master detection equipment through the mode of differential level signals, the slave detection equipment can generate second box door level signals according to the differential level signals, and the master detection equipment can obtain that the box door of one box body is opened according to the second box door level signals.
And if the main detection equipment detects that the corresponding second contact switches are all in an open state, namely the switch level signals of the second contact switches are all high level signals, at the moment, the MCU of the main detection equipment generates a first box door level signal after judging because the second box door level signal is an abnormal level signal, and one of the switch level signals of the second box door level signal and the second contact switches is an abnormal level signal, so that the first box door level signal is also the abnormal level signal, the data processing equipment immediately stops outputting display data after receiving the first box door level signal, and controls the sending card to stop outputting the display data, so that the display screen is black, and the display data is protected.
Finally, if the position of the opened box door is to be determined, the box door can be determined by the box door level signal and the switch level signal received by the main detection device, if the box door level signal received by the main detection device is an abnormal level signal, it is indicated that the box door is opened in the box body, and the slave detection device of each box body should be accessed step by the receiving card at this time so as to acquire abnormal box door information from the slave detection devices through serial port communication, namely, acquire abnormal information such as box door abnormal time, box door abnormal position and the like.
If the switch level signal of the second contact switch received by the main detection device is an abnormal level signal, the case door of the data processing case is opened, and the transmitting card in the data processing case should access the main detection device at the moment so as to acquire abnormal case door information from the main detection device through serial port communication, namely, acquire abnormal information such as case door abnormal time, case door abnormal position and the like.
It should be understood that the data processing device may refer to an integrated media module (Integrated Media Block, IMB), which is a media module embedded inside a digital projector, and may perform processes such as unpacking, decryption, and image decompression on digital cinema data packets (DCP) to generate uncompressed reconstructed images, sounds, and subtitles, and safely output the uncompressed reconstructed images, sounds, and subtitles to the digital projector to realize film projection, and in this embodiment, output the generated uncompressed reconstructed images, sounds, and subtitles to a transmitting card so that the transmitting card processes the uncompressed reconstructed images, sounds, and subtitles and then transmits the uncompressed reconstructed images, sounds, and subtitles to a corresponding receiving card.
In this application embodiment, install mechanical contact on the chamber door of box and data processing equipment and can cooperate the low-power consumption check out test set of independent power supply, constitute a display data protection system, stop the output of display data immediately after detecting that the chamber door is unusual to avoid the danger that the film leaked, guaranteed that the display screen can both guarantee the safety of film copyright under the circumstances that possesses external power supply and does not possess external power supply.
Referring to fig. 2, a flowchart of a display data protection method for a display screen according to a second embodiment of the present application is shown, where the display data protection method is applied to a data processing device in a display data protection system shown in fig. 1. As shown in fig. 2, the display data protection method may include the steps of:
step 201, a first door level signal including a data processor box door open-close state and all box door open-close states is received.
In this embodiment of the present application, the first box door level signal may be sent by a main detection device in the display data protection system, and because the first box door level signal includes a data processor box door opening and closing state and all box door opening and closing states, and if the box door is opened, the display data has a risk of being leaked, so receiving the first box door level signal, it may be determined whether the display data in the display screen has a risk of being leaked according to the first box door level signal.
The box door of the box body is provided with at least one first contact switch, the box door of the data processing box is provided with at least one second contact switch, the opening and closing states of the box doors of the data processing box can be determined according to the opening and closing states of all the second contact switches, and the opening and closing states of the box doors of all the box bodies can be determined according to the opening and closing states of the corresponding first contact switches.
Specifically, if all the second contact switches have the contact switch in the closed state, the switch level signal of the contact switch in the closed state is a low level signal, which indicates that the door of the data processing cabinet is open, if all the first contact switches have the contact switch in the closed state, the switch level signal of the contact switch in the closed state is a low level signal, which indicates that the door of the cabinet is open, i.e., if the switch level signal corresponding to the first contact switch or the second contact switch has a low level signal, the first door level signal can be determined to be an abnormal signal, which indicates that the door of the cabinet is open in the display screen.
Step 202, if the first box door level signal is an abnormal level signal, stopping outputting the display data.
In this embodiment of the present application, if the first box door level signal is an abnormal level signal, it may be determined that a box door is opened in the display screen, and there is a risk of leakage of display data, so that when it is determined that the first box door level signal is an abnormal level signal, output of the display data should be stopped immediately to protect the display data.
In one possible implementation, a data processing chassis includes a data processing device and a transmit card; if the first box door level signal is an abnormal level signal, stopping outputting the display data, including:
If the first box door level signal is an abnormal level signal, the display data output in the data processing equipment is stopped, and the abnormal level signal is sent to the sending card, so that the sending card stops sending the display data to the receiving card in the box body.
In this embodiment of the present application, the data processing device may refer to an IMB board, configured to process a data source of a display screen to obtain display data, and then the data processing device sends the display data to a sending card, where the sending card processes the display data, sends the display data to a corresponding receiving card to display the display data, where the visible data source needs to be displayed on the display screen, and needs to be transmitted twice, once is transmitted by the IMB board to the sending card, and another time is transmitted by the sending card to the receiving card, and if the display data is stolen, the display data generally occurs in the two transmission processes. Therefore, when the first box door level signal is determined to be the abnormal level signal, the data processing device should stop outputting the display data of the first box door level signal, and send the abnormal level signal to the sending card at the same time, so that the sending card is convenient to stop sending the display data to the receiving card in the box body, and the display data is ensured not to be stolen by the outside through a physical means.
In one possible implementation manner, if the first box door level signal is an abnormal level signal, stopping outputting the display data, further includes:
if the first box door level signal is an abnormal level signal, stopping outputting the display data, and sending the abnormal level signal to a receiving card of the box body through a sending card so that the receiving card stops outputting the driving signal to the display screen.
In the embodiment of the application, the display data can be prevented from being leaked in a mode of stopping the receiving card from outputting the driving signal to the display screen.
In this embodiment of the present application, the data processing device is configured to process a data source of a display screen to obtain display data, and then output the display data to a transmitting card for transmitting the display data to a receiving card corresponding to a box, where the display data is stolen and often occurs in the transmission process.
Referring to fig. 3, a flowchart of a signal generating method according to a third embodiment of the present application is shown, where the signal generating method is applied to a main detection device in a display data protection system as shown in fig. 1. As shown in fig. 3, the signal generation method may include the steps of:
step 301, a second door level signal is received.
The second box door level signal is sent by a slave detection device connected with the master detection device in the display data protection system, and the second box door level signal is a level signal generated according to the box door opening and closing states of all the box bodies in the display screen, namely, if any box door opening and closing state in all the box bodies is an abnormal state, the generated second box door level signal is an abnormal level signal.
In this embodiment of the present application, the first contact switch is installed on the door of each box, and the door opening and closing state of the corresponding box can be determined according to the first switch level signal of the first contact switch, that is, if the first switch level signal is an abnormal level signal, the door opening and closing state of the corresponding box is an abnormal state, for example, the door opening and closing state is an open state.
It should be understood that the main detecting device receives the second door level signal, and is mainly aimed at acquiring the door opening and closing states of all the boxes.
Step 302, detecting the open/close states of all the second contact switches, and determining the open/close state of the door of the data processing chassis.
In this embodiment of the present application, the second contact switches are installed on the door of the data processing chassis, and by detecting the open/close states of all the second contact switches, the open/close state of the door of the data processing chassis can be determined, and according to the trigger principle of the contact switches, it can be known that if the contact switches are open states, the open/close state of the door of the data processing chassis is determined to be closed, and if the contact switches are closed states, it is determined that the open/close state of the door of the data processing chassis is obtained by the data processing chassis.
It should be understood that when the opening and closing state of the door of the data processing case is set to be the closing state, the contact switch is set to be the opening state, so that the power supply electric quantity can be saved.
In the embodiment of the application, the opening and closing states of the contact switch can be determined through a switching level signal of the contact switch.
In one possible implementation, detecting the open and close states of all the second contact switches, determining the open and close states of the door of the data processing chassis includes:
detecting a second switch level signal corresponding to each second contact switch to obtain the on-off states of all the second contact switches;
If the abnormal state exists in the opening and closing states of all the second contact switches, determining that the opening and closing state of the box door of the data processing box is the abnormal state, wherein the abnormal state refers to the abnormal level signal exists in all the second switching level signals;
if the opening and closing states of all the second contact switches are normal states, the opening and closing state of the box door of the data processing box is determined to be normal.
The abnormal state of the second contact switch means that the switch level signal of the second contact switch is an abnormal level signal, for example, the normal level signal is a high level signal, and then the abnormal level signal is a low level signal.
Step 303, generating a first box door level signal based on the box door opening and closing state of the data processing box and the second box door level signal, and sending the first box door level signal to the data processing equipment.
In this embodiment of the present application, the second box door level signal includes the box door open-close states of all the boxes, and the first box door level signal is generated based on the box door open-close states of the data processor box and the second box door level signal, which may refer to the first box door level signal generated based on the box door open-close states of the data processor box and the box door open-close states of all the boxes. The first door level signal is sent to the data processing device so that the data processing device can judge whether the transmission of the display data is dangerous or not based on the first door level signal.
In one possible implementation, generating a first door level signal based on a door open and closed state of a data processing enclosure and a second door level signal includes:
determining the opening and closing states of the doors of all the boxes according to the second door level signal;
and generating a first box door level signal based on the box door opening and closing states of the data processing box and the box door opening and closing states of all the box bodies.
In this embodiment of the present application, the opening and closing state of the door of the data processing enclosure may be obtained according to the switching level signal of at least one second contact switch installed on the door of the data processing enclosure, and the opening and closing state of the door of the enclosure may be obtained according to the switching level signal of at least one first contact switch installed on the door of the enclosure.
In one possible implementation manner, the data processing case further includes a transmitting card, and the signal generating method further includes:
responding to a door abnormality acquisition instruction of the data processing cabinet, and generating first door abnormality information;
and sending the first box door abnormality information to the sending card.
The first door anomaly information comprises door anomaly time and door anomaly positions of the data processing machine case.
In this embodiment of the present application, since the first box door level signal sent by the main detection device to the data processing device only indicates the opening and closing state of the box door of the data processing device and whether the opening and closing states of the box doors of all the boxes are abnormal, and detailed information of the abnormal box door cannot be obtained, when the opening and closing state of the box door of the data processing device is abnormal, a box door abnormality acquisition instruction of the data processing device needs to be sent to the main detection device, and the main detection device responds to the instruction, after generating the first box door abnormality information, can send the first box door abnormality information to the sending card, and can be stored in the system log, so that subsequent viewing and recording are facilitated.
It should be understood that, the clock chip is installed in the main detection device, so that the abnormal time of the door can be recorded, and the embodiment of the present application does not specifically limit the type of the clock chip.
In one possible implementation manner, the main detection device is connected to an independent power supply, and the signal generating method further includes:
when the external power supply of the main detection device is detected to be cut off, the independent power supply is adopted for supplying power to generate a first box door level signal, and the first box door level signal is sent to the data processing device.
In this embodiment of the present application, in order to ensure that the main detection device can detect the open and close states of the door of the data processing chassis under the condition that there is an external power supply, an independent power supply is set in the main detection device, and the main detection device is connected with the independent power supply, so that the independent power supply can be used for supplying power when the external power supply is cut off, where the independent power supply may refer to a battery with an energy storage function.
In this embodiment of the present application, the main detection device is located in the data processing chassis, and may not only receive the second box door level signal, determine the opening and closing states of the box doors of all the boxes, but also determine the opening and closing states of the box doors of the data processing chassis according to the opening and closing states of the plurality of second contact switches, and generate the first box door level signal based on the opening and closing states of the box doors of the data processing chassis and the second box door level signal, and send the first box door level signal to the data processing device, so as to provide a basic detection signal for protecting display data for the data processing device. Meanwhile, as the main detection equipment is connected with the independent power supply, the main detection equipment can detect the opening and closing states of the doors of the data processing case and receive second door level signals comprising the opening and closing states of the doors of all the cases under the condition that the external power supply exists or not, so that the accuracy of the display data protection system is ensured.
Referring to fig. 4, a flowchart of a signal generating method according to a fourth embodiment of the present application is shown, where the signal generating method is applied to a slave detection device connected to a master detection device in the display data protection system shown in fig. 1. As shown in fig. 4, the signal generating method may include the steps of:
step 401, detecting first switch level signals of a plurality of first contact switches to obtain door open/close states of all the boxes.
Wherein, from the check out test set with at least one first contact switch of installing on the corresponding box.
In this embodiment of the present application, the switch level signal of the contact switch may indicate an open-close state of the contact switch, for example, if the first switch level signal of the first contact switch is a low level signal, the open-close state of the first contact switch is an off state, so as to obtain an open-close state of a door of the corresponding box body as an on state; and if the first switch level signal of the first contact switch is a high level signal, the first switch level signal indicates that the opening and closing state of the first contact switch is an opening state, and the opening and closing state of the box door corresponding to the box body is a closing state.
And step 402, generating a second box door level signal according to the box door opening and closing states of all the box bodies, and sending the second box door level signal to the main detection equipment.
In the embodiment of the present application, the second door level signal sent to the main detection device needs to include the door open/close states of all the boxes, and therefore needs to be generated according to the door open/close states of all the boxes.
In one possible implementation, the generating the second door level signal according to the door opening and closing states of all the boxes includes:
if the abnormal state exists in the opening and closing states of the box doors of all the box bodies, determining that the second box door level signal is an abnormal level signal;
if the opening and closing states of the doors of all the boxes are normal states, determining that the second door level signal is a normal level signal.
In the embodiment of the application, the abnormal state of the opening and closing state of the box door is an opening state, and the abnormal level signal is a low level signal; the normal state of the opening and closing state of the box door is a closed state, and the normal level signal is a high level signal.
In one possible implementation manner, each box corresponds to a receiving card, and the receiving card is used for receiving the display data and displaying the display data in the corresponding box, and the signal generating method further includes:
responding to the door abnormality acquisition instructions of all the boxes to generate second door abnormality information;
And sending the second box door abnormality information to a receiving card corresponding to the abnormal box door.
The second box door abnormality information comprises box door abnormality time and box door abnormality positions of abnormal box doors in all the box bodies.
In this embodiment of the present application, since the second box door level signal sent from the detection device to the master detection device only indicates whether the opening and closing states of all the box doors are abnormal, and detailed information of the abnormal box doors cannot be obtained, when it is known that the opening and closing states of the box doors of the box are abnormal, a box door abnormality acquisition instruction of the box is sent to the corresponding slave detection device through the receiving card, and if the opening and closing states of the box doors of the slave detection device are abnormal, second box door abnormality information is generated by each slave detection device in response to the corresponding instruction, and the second box door abnormality information is sent to the receiving card corresponding to the abnormal box door, and can be stored in the system log, so that subsequent checking and recording are facilitated.
It should be understood that each slave detecting device is provided with a clock chip, so that abnormal time of the box door can be recorded, and the embodiment of the application does not specifically limit the type of the clock chip.
In one possible implementation manner, each box corresponds to one slave detection device, and each slave detection device is connected with an independent power supply; the signal generation method further comprises the following steps:
Determining the slave detection equipment which transmits the second box door abnormality information to the corresponding receiving card of the abnormal box door as target slave detection equipment;
and after the second box door abnormality information is sent, the independent power supply of the target slave detection equipment is turned off.
In this embodiment of the present application, in order to save the electric quantity of the independent power source, after the target sends the second door anomaly information from the detection device, the independent power source of the slave detection device may be turned off, so as to prolong the service life of the independent power source. And after the external power supply of the display screen is electrified again, starting the independent power supply.
In one possible implementation, the signal generating method further includes:
when the external power supply of the slave detection device is detected to be cut off, the independent power supply connected with the slave detection device is adopted for supplying power to generate a second box door level signal, and the second box door level signal is sent to the master detection device.
In this application embodiment, in order to ensure that the slave detection device can detect the open and close states of the door of the corresponding box body under the condition that whether an external power source exists or not, an independent power source is arranged in each slave detection device, and the slave detection device is connected with the independent power source so as to supply power by using the independent power source when the external power source is cut off, wherein the independent power source can refer to a battery with an energy storage function.
In the embodiment of the application, the slave detection equipment can timely record the switch record corresponding to the box door under the condition that whether an external power supply exists or not, and send the abnormal state of the box door to the master detection equipment. Meanwhile, under the condition of an external power supply, the accurate time for opening the current box door can be obtained through the receiving card, and after the abnormal information of the box door is sent out, the independent power supply of the box door is timely closed, so that the electric quantity of a battery is saved.
Referring to fig. 5, a schematic structural diagram of a display data protection device for a display screen according to a fifth embodiment of the present application is shown, and for convenience of explanation, only a portion related to the embodiment of the present application is shown.
The display data protection device of the display screen specifically comprises the following modules:
the first receiving module 501 is configured to receive a first box door level signal including a data processor box door opening and closing state and all box door opening and closing states, where the first box door level signal is a level signal generated according to the data processor box door opening and closing state and a second box door level signal, the second box door level signal is a level signal generated according to the box door opening and closing states of all the boxes, the box door opening and closing states of the boxes are determined according to first switch level signals corresponding to the first contact switches, and the data processor box door opening and closing states are determined according to second switch level signals of all the second contact switches;
The data protection module 502 is configured to stop outputting the display data if the first box door level signal is an abnormal level signal.
In an embodiment of the application, a data processing chassis includes a data processing device and a transmitting card; the data protection module may specifically include the following sub-modules:
and the output control sub-module is used for stopping outputting the display data in the data processing equipment if the first box door level signal is an abnormal level signal and sending the abnormal level signal to the sending card so that the sending card stops sending the display data to the receiving card in the box body.
The display data protection device for a display screen provided in the embodiment of the present application may be applied to the second embodiment of the foregoing method, and details refer to the description of the second embodiment of the foregoing method, which is not repeated herein.
Referring to fig. 6, a schematic structural diagram of a signal generating device provided in a sixth embodiment of the present application is shown, and for convenience of explanation, only a portion related to the embodiment of the present application is shown.
The signal generating device may specifically include the following modules:
the second receiving module 601 is configured to receive a second box door level signal, where the second box door level signal is a level signal generated according to box door opening and closing states of all the box bodies in the display screen, the box door opening and closing states of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the first contact switches are installed on box doors of each box body;
The first detection module 602 is configured to detect the open/close states of all the second contact switches, and determine the open/close state of the door of the data processing chassis;
the first generating module 603 is configured to generate a first box door level signal based on the opening and closing state of the box door of the data processing box and the second box door level signal, and send the first box door level signal to the data processing device.
In this embodiment of the present application, the first detection module 602 may specifically include the following sub-modules:
the first contact detection submodule is used for detecting second switch level signals corresponding to each second contact switch to obtain the opening and closing states of all the second contact switches;
the first judging submodule is used for determining that the opening and closing states of the box doors of the data processing box are abnormal if abnormal states exist in the opening and closing states of all the second contact switches, and the abnormal states refer to abnormal level signals in all the second switch level signals;
and the second judging submodule is used for determining that the opening and closing states of the box doors of the data processing box are normal if the opening and closing states of all the second contact switches are normal.
In the embodiment of the present application, the first generating module 603 may specifically include the following sub-modules:
The state determining submodule is used for determining the opening and closing states of the doors of all the boxes according to the second door level signal;
the first level generation submodule is used for generating a first box door level signal based on the box door opening and closing state of the data processing box and the box door opening and closing states of all the box bodies.
In this embodiment of the present application, the data processing chassis further includes a transmitting card, and the signal generating device may specifically further include the following modules:
the first abnormality generation module is used for responding to a door abnormality acquisition instruction of the data processing machine box and generating first door abnormality information, wherein the first door abnormality information comprises door abnormality time and door abnormality positions of the data processing machine box;
and the first abnormity sending module is used for sending the first box door abnormity information to the sending card.
In this embodiment of the present application, the main detection device is connected to an independent power source, and the signal generating apparatus may specifically further include the following modules:
the first power supply switching module is used for supplying power by adopting an independent power supply when the external power supply of the main detection equipment is detected to be cut off, so as to generate a first box door level signal and sending the first box door level signal to the data processing equipment.
The signal generating device provided in the embodiment of the present application may be applied to the third embodiment of the foregoing method, and details refer to the description of the third embodiment of the foregoing method, which is not repeated herein.
Referring to fig. 7, a schematic structural diagram of a signal generating device provided in a seventh embodiment of the present application is shown, and for convenience of explanation, only a portion related to the embodiment of the present application is shown.
The signal generating device may specifically include the following modules:
the second detection module 702 is configured to detect first switch level signals of the plurality of first contact switches, so as to obtain door open/close states of all the boxes;
the second generating module 703 is configured to generate a second door level signal according to the door opening and closing states of all the boxes, and send the second door level signal to the main detecting device.
In this embodiment of the present application, the second generating module 703 may specifically include the following sub-modules:
the third judging submodule is used for determining that the second box door level signal is an abnormal level signal if abnormal states exist in the box door opening and closing states of all the box bodies;
and the fourth judging sub-module is used for determining that the second box door level signal is a normal level signal if the box door opening and closing states of all the box bodies are normal states.
In this embodiment of the present application, each box corresponds to a receiving card, where the receiving card is configured to receive display data and display the display data in the corresponding box, and the signal generating device may specifically further include the following modules:
The second abnormality generation module is used for responding to the door abnormality acquisition instructions of all the boxes and generating second door abnormality information, wherein the second door abnormality information comprises the door abnormality time and the door abnormality position of the abnormal doors in all the boxes;
and the second abnormity sending module is used for sending the second box door abnormity information to the receiving card corresponding to the abnormal box door.
In the embodiment of the application, each box corresponds to one slave detection device, and each slave detection device is connected with an independent power supply; the signal generating device may specifically further include the following modules:
the target equipment determining module is used for determining the slave detection equipment which sends the second box door abnormality information to the corresponding receiving card of the abnormal box door as target slave detection equipment;
and the independent power supply control module is used for closing the independent power supply of the target slave detection equipment after the second box door abnormality information is sent.
In the embodiment of the present application, the signal generating device may specifically further include the following modules:
and the second power supply switching module is used for supplying power by adopting an independent power supply connected with the secondary detection equipment when the external power supply of the secondary detection equipment is detected to be cut off, so as to generate a second box door level signal and transmitting the second box door level signal to the primary detection equipment.
The signal generating device provided in the embodiment of the present application may be applied to the fourth embodiment of the foregoing method, and details refer to the description of the fourth embodiment of the foregoing method, which is not repeated herein.
Fig. 8 is a schematic structural diagram of an electronic device according to an eighth embodiment of the present application. As shown in fig. 8, the electronic device 800 of this embodiment includes: at least one processor 810 (only one is shown in fig. 8), a memory 820, and a computer program 821 stored in the memory 820 and executable on the at least one processor 810, the processor 810 implementing the steps in the display data protection method embodiment two of the display screen, or implementing the steps in the signal generation method embodiment three, or implementing the steps in the signal generation method embodiment four, when executing the computer program 821.
The electronic device 800 may be a computing device such as a desktop computer, a notebook computer, a palm computer, and a cloud server. The electronic device may include, but is not limited to, a processor 810, a memory 820. It will be appreciated by those skilled in the art that fig. 8 is merely an example of an electronic device 800 and is not intended to limit the electronic device 800, and may include more or fewer components than shown, or may combine certain components, or may include different components, such as input-output devices, network access devices, etc.
The processor 810 may be a central processing unit (Central Processing Unit, CPU), the processor 810 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 820 may be an internal storage unit of the electronic device 800 in some embodiments, such as a hard disk or a memory of the electronic device 800. The memory 820 may also be an external storage device of the electronic device 800 in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device 800. Further, the memory 820 may also include both internal storage units and external storage devices of the electronic device 800. The memory 820 is used to store an operating system, application programs, boot Loader (Boot Loader), data, and other programs, such as program code of the computer program. The memory 820 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/electronic device and method may be implemented in other manners. For example, the apparatus/electronic device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each method embodiment described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
The present application implementing all or part of the flow of the method of the above embodiments may also be implemented by a computer program product, which when run on an electronic device, causes the electronic device to perform the steps of the method embodiments described above.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (18)

1. The display data protection method of the display screen is characterized by being applied to data processing equipment, wherein the data processing equipment is used for processing a data source of the display screen to obtain the display data; the display screen comprises a data processing machine box and at least one box body, wherein at least one first contact switch is arranged on the box body, and at least one second contact switch is arranged on the data processing machine box; the display data protection method comprises the following steps:
Receiving first box door level signals comprising the opening and closing states of the box doors of the data processing box and the opening and closing states of the box doors of all the box bodies, wherein the first box door level signals refer to level signals generated according to the opening and closing states of the box doors of the data processing box and second box door level signals, the second box door level signals refer to level signals generated according to the opening and closing states of the box doors of all the box bodies, the opening and closing states of the box doors of the box bodies are determined according to first switch level signals corresponding to the first contact switches, and the opening and closing states of the box doors of the data processing box are determined according to second switch level signals of all the second contact switches;
and if the first box door level signal is an abnormal level signal, stopping outputting the display data.
2. The display data protection method of claim 1, wherein the data processing enclosure comprises the data processing device and a transmission card; and stopping outputting the display data if the first box door level signal is an abnormal level signal, including:
and if the first box door level signal is an abnormal level signal, stopping outputting the display data in the data processing equipment, and sending the abnormal level signal to the sending card so that the sending card stops sending the display data to the receiving card in the box body.
3. The signal generation method is characterized by being applied to a main detection device connected with data processing equipment, wherein the data processing equipment is positioned in a data processing machine box, and the main detection device is connected with at least one second contact switch arranged on the data processing machine box and is positioned in the data processing machine box; the signal generation method comprises the following steps:
receiving a second box door level signal, wherein the second box door level signal is a level signal generated according to box door opening and closing states of all box bodies in a display screen, the box door opening and closing states of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the first contact switches are arranged on box doors of all the box bodies;
detecting the opening and closing states of all the second contact switches, and determining the opening and closing states of the box doors of the data processing box;
and generating a first box door level signal based on the box door opening and closing state of the data processing box and the second box door level signal, and sending the first box door level signal to the data processing equipment.
4. The signal generating method according to claim 3, wherein detecting the open/close states of all the second contact switches, determining the open/close state of the door of the data processing box, comprises:
Detecting a second switch level signal corresponding to each second contact switch to obtain the open-close states of all the second contact switches;
if the abnormal state exists in the opening and closing states of all the second contact switches, determining that the opening and closing state of the box door of the data processing box is the abnormal state, wherein the abnormal state refers to the abnormal level signal exists in all the second switch level signals;
and if the opening and closing states of all the second contact switches are normal states, determining that the opening and closing states of the box door of the data processing box are normal states.
5. The signal generating method according to claim 3, wherein the generating a first door level signal based on the door open-close state of the data processing enclosure and the second door level signal comprises:
determining the opening and closing states of the doors of all the boxes according to the second door level signal;
and generating the first box door level signal based on the box door opening and closing states of the data processing box and the box door opening and closing states of all the box bodies.
6. The signal generating method of claim 3, wherein the data processing box further comprises a transmitting card, and the signal generating method further comprises:
Responding to a door abnormality acquisition instruction of a data processing cabinet, and generating first door abnormality information, wherein the first door abnormality information comprises door abnormality time and door abnormality position of the data processing cabinet;
and sending the first box door abnormality information to the sending card.
7. A signal generating method according to claim 3, wherein the main detection device is connected to an independent power source, the signal generating method further comprising:
when the external power supply of the main detection device is detected to be cut off, the independent power supply is adopted to supply power to generate the first box door level signal, and the first box door level signal is sent to the data processing device.
8. A signal generating method, characterized in that it is applied to a slave detection device connected to a box and a master detection device, the slave detection device being connected to a plurality of first contact switches mounted on the corresponding box; the signal generation method comprises the following steps:
detecting first switch level signals of a plurality of first contact switches to obtain the opening and closing states of the doors of all the boxes;
and generating a second box door level signal according to the box door opening and closing states of all the box bodies, and sending the second box door level signal to main detection equipment.
9. The signal generating method according to claim 8, wherein the generating the second door level signal according to the door open/close states of all the cases comprises:
if the abnormal state exists in the opening and closing states of the box doors of all the box bodies, determining that the second box door level signal is an abnormal level signal;
if the opening and closing states of the doors of all the boxes are normal states, determining that the second door level signal is a normal level signal.
10. The signal generating method according to claim 8, wherein each of the cases corresponds to a receiving card for receiving display data and displaying the display data in the corresponding case, the signal generating method further comprising:
responding to the door anomaly acquisition instructions of all the boxes, and generating second door anomaly information, wherein the second door anomaly information comprises door anomaly time and door anomaly positions of anomaly doors in all the boxes;
and sending the second box door abnormality information to a receiving card corresponding to the abnormal box door.
11. The signal generating method according to claim 10, wherein each of the cases corresponds to a slave detecting device, each of the slave detecting devices being connected to an independent power source; the signal generation method further includes:
Determining the slave detection equipment which sends the second box door abnormality information to the corresponding receiving card of the abnormal box door as target slave detection equipment;
and after the second box door abnormality information is sent, closing an independent power supply of the target slave detection equipment.
12. The signal generation method of claim 11, wherein the signal generation method further comprises:
when the external power supply of the slave detection device is detected to be cut off, the independent power supply connected with the slave detection device is adopted to supply power, so that the second box door level signal is generated, and the second box door level signal is sent to the master detection device.
13. A display data protection system of a display screen, characterized in that the display data protection system comprises a data processing device, a master detection device and at least one slave detection device;
the data processing equipment is used for receiving first box door level signals comprising the opening and closing states of the box doors of the data processing box and the opening and closing states of the box doors of all the box bodies, wherein the first box door level signals refer to level signals generated according to the opening and closing states of the box doors of the data processing box and second box door level signals, the second box door level signals refer to level signals generated according to the opening and closing states of the box doors of all the box bodies, the opening and closing states of the box doors of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the opening and closing states of the box doors of the data processing box are determined according to second switch level signals of all the second contact switches; if the first box door level signal is an abnormal level signal, stopping outputting the display data;
The main detection equipment is used for receiving second box door level signals, wherein the second box door level signals are level signals generated according to box door opening and closing states of all box bodies in the display screen, the box door opening and closing states of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the first contact switches are arranged on box doors of all the box bodies; detecting the opening and closing states of all the second contact switches, and determining the opening and closing states of the box doors of the data processing box; generating a first box door level signal based on the opening and closing state of the box door of the data processing box and the second box door level signal, and sending the first box door level signal to the data processing equipment;
the secondary detection equipment is used for detecting first switch level signals of a plurality of first contact switches to obtain the opening and closing states of the doors of all the boxes; generating a second box door level signal according to the box door opening and closing states of all the box bodies; and sending the second box door level signal to main detection equipment.
14. A display data protection device for a display screen, the display data protection device comprising:
the first receiving module is used for receiving first box door level signals comprising the opening and closing states of the box doors of the data processing box and the opening and closing states of the box doors of all the box bodies, the first box door level signals are level signals generated according to the opening and closing states of the box doors of the data processing box and second box door level signals, the second box door level signals are level signals generated according to the opening and closing states of the box doors of all the box bodies, the opening and closing states of the box doors of the box bodies are determined according to first switch level signals corresponding to the first contact switches, and the opening and closing states of the box doors of the data processing box are determined according to second switch level signals of all the second contact switches;
And the data protection module is used for stopping outputting the display data if the first box door level signal is an abnormal level signal.
15. A signal generating apparatus, characterized in that the signal generating apparatus comprises:
the second receiving module is used for receiving second box door level signals, wherein the second box door level signals are level signals generated according to box door opening and closing states of all box bodies in the display screen, the box door opening and closing states of the box bodies are determined according to first switch level signals corresponding to first contact switches, and the first contact switches are arranged on box doors of all the box bodies;
the first detection module is used for detecting the opening and closing states of all the second contact switches and determining the opening and closing states of the box doors of the data processing box;
the first generation module is used for generating a first box door level signal based on the opening and closing state of the box door of the data processing box and the second box door level signal, and sending the first box door level signal to the data processing equipment.
16. A signal generating apparatus, characterized in that the signal generating apparatus comprises:
the second detection module is used for detecting first switch level signals of the plurality of first contact switches to obtain the opening and closing states of the doors of all the boxes;
And the second generation module is used for generating a second box door level signal according to the box door opening and closing states of all the box bodies and sending the second box door level signal to the main detection equipment.
17. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any one of claims 1 to 2, or the method according to any one of claims 3 to 7, or the method according to any one of claims 8 to 12, when executing the computer program.
18. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the method of any one of claims 1 to 2, or implements the method of any one of claims 3 to 7, or implements the method of any one of claims 8 to 12.
CN202211736584.XA 2022-12-30 2022-12-30 Display data protection method, signal generation method, device and system of display screen Pending CN116229881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211736584.XA CN116229881A (en) 2022-12-30 2022-12-30 Display data protection method, signal generation method, device and system of display screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211736584.XA CN116229881A (en) 2022-12-30 2022-12-30 Display data protection method, signal generation method, device and system of display screen

Publications (1)

Publication Number Publication Date
CN116229881A true CN116229881A (en) 2023-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211736584.XA Pending CN116229881A (en) 2022-12-30 2022-12-30 Display data protection method, signal generation method, device and system of display screen

Country Status (1)

Country Link
CN (1) CN116229881A (en)

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