Terminal box and display control system

Abstract

The utility model discloses a terminal box and a display control system, and the terminal box comprises an input module which comprises at least two kinds of video signal interfaces, and the output end of the input module is connected with the first input end of a data switching module; the data output end of the control module is connected with the second input end of the data switching module; the control end of the data switching module is connected with the control end of the control module; the switching state feedback end of the data switching module is connected with the input end of the control module; the output end of the data switching module is connected with the input end of the output module, the output module comprises at least two video signal interfaces, and the data switching module is used for switching connection of signal transmission channels of the first input end or the second input end and the output end according to the control signals output by the control module. And the data switching module switches the data signals of different channels according to the control signal output by the control module, so that the selection of the data signals output by the terminal box is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of user verification of large-scale experimental instruments, in particular to a terminal box and a display control system Background Technique

[0002] Users of large-scale experimental instruments need to register or be verified. The control device supporting the experimental instrument collects the user's identity information and conducts verification. When the identity information passes the verification, the experimental instrument can be used by the user. When the identity information fails to pass the verification, the experimental instrument remains locked and cannot be used by the user

[0003] In the switching scheme for the locked state of the experimental instrument, in the prior art, it is controlled by controlling whether the experimental instrument is powered on: a control device is provided to control whether the experimental instrument is powered on. When the identity information passes the verification, the control device controls the experimental instrument to be powered on, and the experimental instrument can be used by the user; when the identity information fails to pass the verification, the control device controls the experimental instrument to remain powered off and cannot be used by the user

[0004] In the control device for controlling the locked state of the experimental instrument in the prior art, every time the identity information verification passes, the experimental instrument will be powered on and started. After the user finishes using it, the control device will control the device to be powered off and shut down. Such frequent power-off and power-on startups will accelerate the wear of internal components of the experimental equipment, resulting in a shortened equipment life. At the moment of startup, the mechanical components inside the equipment will bear huge torques, which will cause component fatigue after long-term accumulation, thus shortening the service life of the equipment. In addition, frequently starting the equipment instrument will also increase the failure rate of the equipment and cause an impact on the power grid Content of the Utility Model

[0005] The utility model provides a terminal box and a display control system to solve the problem of excessive damage to experimental equipment caused by the switching of the locked state of the experimental instrument by the current control device

[0006] In the first aspect, the utility model provides a terminal box, which includes: a control module, a data switching module, an input module and an output module

[0007] The input module includes at least two video signal interfaces, and the output end of the input module is connected to the first input end of the data switching module; the data output end of the control module is connected to the second input end of the data switching module

[0008] The control end of the data switching module is connected to the control end of the control module; the switching state feedback end of the data switching module is connected to the input end of the control module

[0009] The output terminal of the data switching module is connected to the input terminal of the output module. The output module includes at least two video signal interfaces. The data switching module is used to switch the connection of the signal transmission channel between the first input terminal or the second input terminal and the output terminal according to the control signal output by the control module.

[0010] Optionally, the terminal box further includes: an information acquisition module;

[0011] The information acquisition module is connected to the control module;

[0012] The information acquisition module is used to acquire the input verification information and send the verification information to the control module; the control module sends a control signal to the data switching module according to the verification information.

[0013] Optionally, the terminal box further includes: a storage module;

[0014] The storage module stores data signals and standard verification information; the storage module is connected to the control module, and the storage module sends the data signals and standard verification information to the control module.

[0015] The control module sends the data signal to the second input terminal of the data switching module;

[0016] The control module sends a control signal to the data switching module based on the comparison result between the verification information and the standard verification information.

[0017] Optionally, the input module includes: an HDMI input interface, a VGA to HDMI input interface, and a first data switching unit;

[0018] The HDMI input interface is connected to the first input terminal of the first data switching unit, and the VGA to HDMI input interface is connected to the second input terminal of the first data switching unit.

[0019] The output of the first data switching unit serves as the output of the input unit.

[0020] Optionally, the output module includes: an HDMI output interface, a VGA to HDMI output interface, and a second data switching unit;

[0021] The HDMI output interface is connected to the first output terminal of the second data switching unit, and the VGA to HDMI output interface is connected to the second output terminal of the second data switching unit.

[0022] The input terminal of the second data switching unit serves as the input terminal of the output module.

[0023] Optionally, the data switching module includes: a switching unit and a relay;

[0024] The control terminal of the relay is connected to the control module, and the contact switch of the relay is connected to the control terminal of the switching unit; the status terminal of the switching unit is connected to the status acquisition terminal of the control module; the status terminal of the switching unit is used to send the status of the switching unit to the control module.

[0025] The first input terminal and the second input terminal of the switching unit serve as the first input terminal and the second input terminal of the data switching module, respectively.

[0026] The output of the switching unit serves as the output of the data switching module.

[0027] Optionally, the terminal box further includes: a status indication module;

[0028] The control terminal of the status indication module is connected to the status indication control terminal of the control module; the control module sends a verification control signal to the status indication module according to the verification information, and the status indication module performs status indication in different modes according to the verification control signal.

[0029] Secondly, this utility model provides a display control system, which includes: a host computer, a device host, a device screen, and a terminal box according to any one of the embodiments of this utility model;

[0030] The device host is connected to the first input terminal of the terminal box; the host computer is connected to the data input terminal of the terminal box; the device screen is connected to the output terminal of the terminal box.

[0031] The terminal box controls the switching of the signal transmission channel between the first input terminal or the data input terminal and the output terminal.

[0032] Optionally, the display control system further includes a power interface;

[0033] The power interface is used to output 5V / 3A power to supply power to the terminal box.

[0034] Optionally, the host computer is connected to the terminal box via a network cable; the terminal box is connected to the device host and the device screen via an HDMI cable or a VGA cable, respectively; and the power interface is connected to the terminal box via a Type-C cable.

[0035] In the terminal box and display control system of this utility model embodiment, the data switching module in the terminal box switches the connection of the signal transmission channel between the first input terminal or the second input terminal and the output terminal according to the control signal of the control module, so that the terminal box outputs different types of video signals. The terminal box can control whether the user can use the experimental instrument normally by controlling the output of different types of data signals. The terminal box provided in this utility model embodiment realizes the selection of the data signal output by the terminal box output terminal by selecting the connection of the signal transmission channel between the first input terminal or the second input terminal and the output terminal, thereby controlling whether the experimental screen and the device host are connected to the data transmission channel. At the same time, the terminal box only controls whether the experimental instrument screen displays the data signal of the device host normally to constrain whether the user can use the experimental instrument normally, avoiding frequent start-stop of the experimental instrument under the control of power on and off, and reducing damage to the experimental instrument. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a terminal box provided in an embodiment of the present utility model;

[0038] Figure 2 This is a schematic diagram of another terminal box provided in an embodiment of the present utility model;

[0039] Figure 3 This is a schematic diagram of another terminal box provided in an embodiment of the present utility model;

[0040] Figure 4 This is a schematic diagram of another terminal box provided in an embodiment of the present utility model;

[0041] Figure 5 This is a circuit diagram of a terminal box provided in an embodiment of the present utility model;

[0042] Figure 6 This is a schematic diagram of the structure of a display control system provided in an embodiment of the present utility model. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] Figure 1 This is a structural schematic diagram of a terminal box provided in an embodiment of the present utility model, as shown below. Figure 1 As shown, the terminal box includes: a control module 101, a data switching module 102, an input module 103, and an output module 104; the input module 103 includes at least two video signal interfaces, and the output terminal of the input module 103 is connected to the first input terminal of the data switching module 102; the data output terminal of the control module 101 is connected to the second input terminal of the data switching module 102; the control terminal of the data switching module 102 is connected to the control terminal of the control module 101; the switching status feedback terminal of the data switching module 102 is connected to the input terminal of the control module 101; the output terminal of the data switching module 102 is connected to the input terminal of the output module 104, and the output module 104 includes at least two video signal interfaces. The data switching module 102 is used to switch the connection of the signal transmission channel between the first input terminal or the second input terminal and the output terminal according to the control signal output by the control module 101.

[0046] Specifically, the data switching module 102 includes two input terminals, with the first input terminal of the data switching module 102 connected to the output terminal of the input module 103. The signals input to the input module 103 are data signals sent from the host device to the screen of the experimental instrument during normal use, including the host device's status information and / or experimental progress information, allowing the user to interact with the data through the device screen while using the experimental instrument.

[0047] The second input terminal of the data switching module 102 is connected to the data output terminal of the control module 101. The second input terminal of the data module 102 does not receive data signals from the experimental equipment screen sent by the device host.

[0048] The output terminal of output module 104 serves as the output terminal of the terminal box, and output module 104 outputs the data signal sent by the output terminal of data switching module 102. The output signal of the terminal box is sent to the device screen of the experimental instrument for display.

[0049] The data switching module 102 switches between the first input terminal and the second input terminal and the output terminal signal transmission channel according to the control signal from the control module 101. The data switching module 102 controls whether the user can obtain the data signal sent by the host device of the experimental instrument on the device screen. When the data switching module 102 switches the first data input terminal to the output terminal, the device screen obtains the data signal sent by the host device of the experimental instrument, and the user can use the experimental instrument normally. When the data switching module 102 switches the second data input terminal to the output terminal, the device screen does not obtain the data signal sent by the host device of the experimental instrument, and the user cannot use the experimental instrument normally.

[0050] The input module 103 and the output module 104 include two video signal interfaces to be compatible with the interface types of the host device and the device screen of different experimental instruments, so that the terminal box can work normally under the protocols of the two video signal interfaces.

[0051] In the terminal box provided by this embodiment of the invention, the data switching module switches the connection of the signal transmission channel between the first input terminal or the second input terminal and the output terminal according to the control signal of the control module, so that the terminal box outputs different types of video signals. The terminal box can control whether the user can use the experimental instrument normally by controlling the output of different types of data signals. In the terminal box provided by this embodiment of the invention, by selecting the connection of the signal transmission channel between the first input terminal or the second input terminal and the output terminal, the output data signal output by the terminal box output terminal is selected, thereby controlling whether the experimental screen and the device host are connected for data transmission. At the same time, the terminal box only controls whether the experimental instrument screen displays the data signal of the device host normally to constrain whether the user can use the experimental instrument normally, avoiding frequent start-stop of the experimental instrument under power-on and shutdown conditions, and reducing damage to the experimental instrument.

[0052] Based on the above embodiments, Figure 2 This is a schematic diagram of another terminal box provided in an embodiment of the present utility model, as shown below. Figure 2As shown, the terminal box also includes: an information acquisition module 105; the information acquisition module 105 is connected to the control module 101; the information acquisition module 105 is used to acquire the input verification information and send the verification information to the control module 101; the control module 101 sends a control signal to the data switching module 102 according to the verification information.

[0053] Specifically, in the terminal box, the information acquisition module 105 can acquire the input verification information. The verification information includes the user's identity information. The information acquisition module 105 sends the acquired verification information to the control module 101, and the control module 101 verifies the verification information. The verification by the control module 101 includes: querying the user's identity information in the verification information to determine whether the user is authorized to use the experimental instrument.

[0054] After the control module 101 verifies the verification information and determines that the user can use the experimental instrument, the control module 101 sends a control signal to the data switching module 102. The control signal connects the signal transmission channel between the first input and output terminals of the data switching module 102. At this time, the terminal box outputs the first data signal, and the user can use the experimental instrument normally. The first data signal is the data signal sent from the device host to the experimental device screen when the experimental instrument is in normal use.

[0055] After the control module 101 verifies the verification information and determines that the user cannot use the experimental instrument, the control module 101 sends a control signal to the data switching module 102 to control the connection of the signal transmission channel between the second input and output terminals of the data switching module 102. At this time, the terminal box outputs a second data signal, and the experimental instrument's screen displays the protective data signal output by the terminal box. The experimental instrument's screen does not receive the data signal from the host device, and the user cannot use the experimental instrument normally. The second data signal is a protective data signal sent by the control module 101 to the second input terminal of the data switching module 102 and does not contain host device data from the experimental instrument.

[0056] For example, the verification information is the user's identity information; the information acquisition module 105 includes an NFC (Near Field Communication) reading system. When a user is qualified to use the experimental instrument, the NFC signal transmitting device held by the user may contain experimental instrument use qualification pass information. The information acquisition module 105 acquires the verification information of the user's NFC signal transmitting device and sends the verification information to the control module 101. After the control module 101 reads that the verification information contains experimental instrument use qualification pass information, it determines that the user is qualified to use the experimental instrument.

[0057] Based on the above embodiments, Figure 3 This is a schematic diagram of another terminal box provided in an embodiment of the present utility model, as shown below. Figure 3 As shown, the terminal box also includes: a storage module 106; the storage module 106 stores data signals and standard verification information; the storage module 106 is connected to the control module 101, and the storage module 106 sends data signals and standard verification information to the control module 101; the control module 101 sends data signals to the second input terminal of the data switching module 102; the control module 101 sends control signals to the data switching module 102 according to the comparison result of the verification information and the standard verification information.

[0058] Specifically, the storage module 106 stores data signals and standard verification information. The data signals are the data signals sent to the second input terminal of the data switching module 102, i.e., the second data signals.

[0059] The standard verification information is user information indicating eligibility to use the experimental instrument. The information acquisition module 105 acquires the verification information, which is the current user information, including the user's fingerprint and / or facial recognition information. The information acquisition module 105 sends the verification information to the control module 101. Simultaneously, the control module 101 retrieves the standard verification information from the storage module 106 and compares it with the verification information. If one item of the standard verification information matches the verification information, the user is deemed qualified to use the experimental instrument. The control module 101 then sends a control signal to the data switching module 102, which connects the signal transmission channel between the first input and output terminals of the data switching module 102. At this time, the terminal box outputs the first data signal, allowing the user to use the experimental instrument normally. If none of the standard verification information matches the verification information, the user is deemed unqualified to use the experimental instrument. The data signal output by the terminal box is always the signal input to the second input terminal of the data switching module 102, i.e., the second data signal. The current user cannot use the experimental instrument normally.

[0060] For example, the data signals stored in storage module 106 may include image and / or video information to display equipment information of experimental instruments and / or reservation user information. Standard verification information stored in storage module 106 may include user information of eligibility, including fingerprint information and / or facial recognition information and / or identity card information.

[0061] Based on the above embodiments, Figure 4 This is a schematic diagram of another terminal box provided in an embodiment of the present utility model, as shown below. Figure 4As shown, the input module 103 includes: an HDMI input interface, a VGA to HDMI input interface, and a first data switching unit 1031; the HDMI input interface is connected to the first input terminal of the first data switching unit 1031, and the VGA to HDMI input interface is connected to the second input terminal of the first data switching unit 1031; the output terminal of the first data switching unit 1031 serves as the output terminal of the input unit.

[0062] The output module 104 includes: an HDMI output interface, a VGA to HDMI output interface, and a second data switching unit 1041; the HDMI output interface is connected to the first output terminal of the second data switching unit 1041, and the VGA to HDMI output interface is connected to the second output terminal of the second data switching unit 1041; the input terminal of the second data switching unit 1041 serves as the input terminal of the output module 104.

[0063] The data switching module 102 includes: a switching unit 1022 and a relay 1021; the control terminal of the relay 1021 is connected to the control module 101, and the contact switch of the relay 1021 is connected to the control terminal of the switching unit 1022; the status terminal of the switching unit 1022 is connected to the status acquisition terminal of the control module 101; the status terminal of the switching unit 1022 is used to send the status of the switching unit 1022 to the control module 101; the first input terminal and the second input terminal of the switching unit 1022 serve as the first input terminal and the second input terminal of the data switching module 102, respectively; the output terminal of the switching unit 1022 serves as the output terminal of the data switching module 102.

[0064] Specifically, the input module 103 of the terminal box receives signals from the host device of the experimental instrument. The input module 103 includes an HDMI (High Definition Multimedia Interface) input interface and a VGA (Video Graphics Array) to HDMI input interface to adapt to different host device models. The data signals output from the two interfaces are processed by the first data switching unit 1031 (two inputs, one output) and then output to the data switching module 102.

[0065] Optionally, the first data switching unit 1031 is an automatic signal switching device that automatically outputs the data of one of the interfaces when it detects that there is data input at one of the interfaces.

[0066] The output terminal of output module 104 serves as the output terminal of the terminal box, and is connected to the screen of the experimental instrument. The input terminal of the second data switching unit 1041 receives data from the output terminal of data switching module 102 and outputs it to the screen of the experimental instrument via an HDMI output interface or a VGA-to-HDMI output interface. The HDMI output interface or VGA-to-HDMI output interface is compatible with different models of screens.

[0067] Optionally, the second data switching unit 1041 is an automatic signal switching device that automatically outputs data through the output interface when it detects that one of the interfaces is electrically connected to other devices.

[0068] In the switching unit 1022 of the data switching module 102, the first input terminal is connected to the input module 103 to receive data signals sent by the input module 103; the second input terminal is connected to the control module 102 to receive data signals sent by the control module 101. The status terminal is connected to the control module 101 to send the conduction status of the switching unit 1022 to the control module. The conduction status of the switching unit 1022 includes a first conduction status and a second conduction status; wherein the first conduction status connects the first input terminal and the output terminal, and the second conduction status connects the second input terminal and the output terminal. The switching unit 1022 is controlled by the relay 1021, and the control module 101 controls the switching of the conduction status of the switching unit 1022 by controlling the conduction or deactivation of the relay 1021.

[0069] Based on the above embodiments, continue to refer to Figure 4 The terminal box also includes: a status indication module 107; the control terminal of the status indication module 107 is connected to the status indication control terminal of the control module 101; the control module 101 sends a verification control signal to the status indication module 107 according to the verification information, and the status indication module 107 performs status indication in different modes according to the verification control signal.

[0070] Specifically, the status indication module 107 is used to display the comparison of verification information by the control module 101. For example, when the control module 101 checks the verification information and determines that the user is qualified to use the experimental instrument, and causes the terminal box to output the corresponding data signal, the status indication module 107 provides a first-mode status indication. When the control module 101 checks the verification information and determines that the user is not qualified to use the experimental instrument, and causes the terminal box to output the corresponding data signal, the status indication module 107 provides a second-mode status indication. Optionally, the status indication module 107 includes LED indicator lights and / or a speaker. Correspondingly, the first-mode and second-mode status indications include different running light effects or different sound effects.

[0071] Based on the above embodiments, continue to refer to Figure 4 The terminal box also includes a power supply module 108; the power supply module 108 is used to supply power to other modules in the terminal box when an external power source is input to the terminal box. For example, the power supply module 108 is a transformer that steps down the external 220V voltage to 12V or 5V, the terminal box's operating voltage. The power supply hub module 109 is a module that provides centralized power to all modules within the terminal box. For example, the power supply hub module 109 can step down the 12V operating voltage from the control module to 5V to power the modules other than the control module 101.

[0072] Based on the above embodiments, Figure 5 This is a circuit diagram of a terminal box provided in an embodiment of the present invention, as shown below. Figure 5 As shown, it includes: an integration module 111, a data switching module 102, an input module 103, an output module 104, a status indication module 107, and a power supply module 108.

[0073] The integrated module 111 integrates the functions of multiple modules. For example, the integrated module 111 is a development board of model ORANGE_PIDIP26. The integrated module 111 integrates the control functions of the control module 101, the information acquisition functions of the information acquisition module 105, and the storage functions of the storage module 106. The integrated module 111 is used to control the data switching module 102, acquire user verification information, and store data signals and standard verification information.

[0074] The data switching module 102 includes an HDMI automatic switching device U22 and a relay U21. The relay U21 is an HT46F-DC5V-SHAG model relay. The contact switch of the relay U21 is connected to the control terminal of the HDMI automatic switching device U22, and the relay U21 is also connected to pin 15 of the integrated module 111, receiving control signals from the integrated module 111. The relay U21 controls the switching of the contact switch through the control of the integrated module 111.

[0075] The HDMI automatic switching device U22 includes a first input terminal HDMI_IN1, a second input terminal HDMI_IN2, and an output terminal HDMI_OUT3. The second input terminal HDMI_IN2 is connected to the data terminal DATA of the integrated module 111; the first input terminal HDMI_IN1 is connected to the output terminal of the input module 103; and the output terminal HDMI_OUT3 is connected to the input terminal of the output module 104. The HDMI automatic switching device U22 also includes an output terminal OUT, which is connected to pin 10 of the integrated module 111. The HDMI automatic switching device U22 sends its on / off status to the integrated module 111 through the output terminal OUT.

[0076] Relay U21 controls the switching between the KEY and OUT pins of the HDMI automatic switcher U22 to control its on / off state. The on / off state of the HDMI automatic switcher U22 includes: outputting the data signal from the first input terminal HDMI_IN1 at the output terminal HDMI_OUT3, and outputting the data signal from the second input terminal HDMI_IN2 at the output terminal HDMI_OUT3.

[0077] The input module 103 includes a two-input-one-output signal converter U3. The two-input-one-output signal converter U3 includes a first input terminal HDMI_IN, a second input terminal VGA_IN, and an output terminal HDMI_OUT. The input terminals of the two-input-one-output signal converter U3 are compatible with both HDMI and VGA interfaces, converting the input signals from these two interfaces into HDMI signals and outputting them to the data switching module 102.

[0078] The output module 104 includes a one-in-two-out signal conversion device U4. The one-in-two-out signal conversion device U4 includes a first output terminal HDMI_OUT, a second output terminal VGA_OUT, and an input terminal HDMI_IN. The output terminals of the one-in-two-out signal conversion device U4 are compatible with both HDMI and VGA interfaces, and convert the input HDMI signal into an HDMI signal or a VGA signal for output.

[0079] The status indication module 107 includes a speaker U71 and an LED matrix U72. The speaker U71 is of model number BEEP_SMT; the LED matrix U72 can be a red, yellow, and blue LED matrix. The input terminal of the speaker U71 is connected to pin 14 of the integrated module 111; the input terminals of the LED matrix U72 are connected to pins 11, 12, and 13 of the integrated module 111. The speaker U71 and the LED matrix U72 display corresponding statuses according to the control signals from the integrated module 111.

[0080] The power supply module 108 includes a TYPEC female connector U81 and a push-button switch U82. The TYPEC female connector U81 receives external power signals and, through the control of the push-button switch U82, supplies power to other modules in the terminal box. Optionally, the push-button switch U82 is model SP-2214.

[0081] Continue to refer to Figure 5 The data signal input to the input module 103 is the first data signal, which is also the data signal input to the terminal box. The first data signal includes the status information of the device host and / or experimental progress information, allowing the user to interact with the data through the device screen when using the experimental instrument.

[0082] The data signal input to the second input terminal HDMI_IN2 of the HDMI automatic switching device U22 of the data switching module 102 is the second data signal. The second data signal does not contain the device host data of the experimental instrument. When the device screen of the experimental instrument receives the second data signal instead of the first data signal, the user cannot use the experimental instrument normally.

[0083] The second data signal, as a protective data signal, can not only serve as a data output to prevent the data switching module 102 from outputting the first data signal, but also display set information. For example, the second data signal may include image information and / or identity reservation information and / or experimental instrument information.

[0084] The control module 101 controls the output of the HDMI automatic switching device U22 in the data switching module 102 to determine whether it outputs a first data signal or a second data signal, thereby controlling which data signal the terminal box outputs. When the terminal box outputs the first data signal, the experimental instrument's screen can receive the data information from the host device, and the user can use the experimental instrument normally. When the terminal box outputs the second data signal, the experimental instrument's screen receives a protective data signal, and the user cannot use the experimental instrument.

[0085] Based on the above embodiments, Figure 6 This is a schematic diagram of the structure of a display control system provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the display control system includes: a host computer 40, a device host 20, a device screen 30, and a terminal box 10 of any of the above embodiments; the device host 20 is connected to the first input terminal of the terminal box 10; the host computer 40 is connected to the data input terminal of the terminal box 10; the device screen 30 is connected to the output terminal of the terminal box 10; the terminal box 10 controls the switching of the signal transmission channel between the first input terminal or the data input terminal and the output terminal.

[0086] Specifically, the device host 20 is the host of the experimental instrument; the device screen 30 is the device screen of the experimental instrument. A terminal box 10 is connected in series between the device host 20 and the device screen 30. The data signal from the device host 20 is input through the input terminal of the terminal box. The data signal input to the device host 20 into the terminal box 10 is the first data signal. The first data signal is sent to the first input terminal of the data switching module 102 through the input module 103 in the terminal box 10.

[0087] The host computer 40 controls the terminal box 10, sending data signals and standard verification information to it. The data signal is a second data signal, sent from the control module 101 in the terminal box 10 to the second input of the data switching module 102. The standard verification information is sent to the control module 101 for verifying the user's identity. Both the data signal and the standard verification information in the terminal box can be modified via the host computer. The standard verification information includes a list of reserved experimental instruments. The terminal box 10 and the host computer 40 share the reserved list, and the standard verification information can be modified at any time via the host computer 40.

[0088] The device screen 30 is connected to the output terminal of the terminal box 10, and the device screen 30 displays the data signal output by the terminal box 10. Optionally, the device screen 30 is the industrial control computer screen of the experimental instrument. The host computer 40 is the control computer of the experimental instrument.

[0089] Terminal box 10 controls the connection of the signal transmission channel between the first input terminal or the data input terminal and the output terminal. Terminal box 10 outputs different data signals so that the device screen 30 receives different data signals for display.

[0090] For example, terminal box 10 can obtain the identity information of the user applying to use the experimental instrument. When terminal box 10 determines that the user is qualified to use the experimental instrument, terminal box 10 outputs a first data signal to the device screen; when terminal box 10 determines that the user is not qualified to use the experimental instrument, terminal box 10 outputs a second data signal to the device screen.

[0091] In the display control system provided by this embodiment, the signal output to the screen of the experimental instrument via the terminal box is either a signal from the host computer of the experimental instrument or a data signal from the host computer. This display control system avoids the high-risk operation of controlling the instrument's power supply, placing user control on the control of the experimental instrument's screen. This prevents the damage caused by frequent power-on / off starts and stops of the instrument. Simultaneously, it enables the terminal box and the host computer to share the experimental instrument usage reservation list, facilitating the updating of user reservation information at any time.

[0092] The display control system also includes a power interface; the power interface is used to output 5V / 3A power to supply power to the terminal box 10. The host computer 40 is connected to the terminal box 10 via a network cable; the terminal box 10 is connected to the device host 20 and the device screen 30 via HDMI or VGA cables respectively; the power interface is connected to the terminal box 10 via a TYPE-C cable.

[0093] Optionally, the host computer 40 can also connect to the terminal box 10 via a remote wireless network to enable remote management of experimental instruments and equipment.

[0094] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0095] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A terminal box, characterized in that, include: Control module, data switching module, input module, and output module; The input module includes at least two video signal interfaces, and the output terminal of the input module is connected to the first input terminal of the data switching module; the data output terminal of the control module is connected to the second input terminal of the data switching module. The control terminal of the data switching module is connected to the control terminal of the control module; the switching status feedback terminal of the data switching module is connected to the input terminal of the control module. The output terminal of the data switching module is connected to the input terminal of the output module. The output module includes at least two video signal interfaces. The data switching module is used to switch the connection of the signal transmission channel between the first input terminal or the second input terminal and the output terminal according to the control signal output by the control module. The terminal box also includes: an information acquisition module; The information acquisition module is connected to the control module; The information acquisition module is used to acquire the input verification information and send the verification information to the control module; the control module sends a control signal to the data switching module according to the verification information; The terminal box also includes: a storage module; The storage module stores data signals and standard verification information; the storage module is connected to the control module, and the storage module sends the data signals and standard verification information to the control module. The control module sends the data signal to the second input terminal of the data switching module; The control module sends a control signal to the data switching module based on the comparison result between the verification information and the standard verification information.

2. The terminal box according to claim 1, characterized in that, The input module includes: an HDMI input interface, a VGA to HDMI input interface, and a first data switching unit; The HDMI input interface is connected to the first input terminal of the first data switching unit, and the VGA to HDMI input interface is connected to the second input terminal of the first data switching unit. The output of the first data switching unit serves as the output of the input unit.

3. The terminal box according to claim 1, characterized in that, The output module includes: an HDMI output interface, a VGA to HDMI output interface, and a second data switching unit; The HDMI output interface is connected to the first output terminal of the second data switching unit, and the VGA to HDMI output interface is connected to the second output terminal of the second data switching unit. The input terminal of the second data switching unit serves as the input terminal of the output module.

4. The terminal box according to claim 1, characterized in that, The data switching module includes: a switching unit and a relay; The control terminal of the relay is connected to the control module, and the contact switch of the relay is connected to the control terminal of the switching unit; the status terminal of the switching unit is connected to the status acquisition terminal of the control module; the status terminal of the switching unit is used to send the status of the switching unit to the control module. The first input terminal and the second input terminal of the switching unit serve as the first input terminal and the second input terminal of the data switching module, respectively. The output of the switching unit serves as the output of the data switching module.

5. The terminal box according to claim 1, characterized in that, The terminal box also includes: a status indicator module; The control terminal of the status indication module is connected to the status indication control terminal of the control module; the control module sends a verification control signal to the status indication module according to the verification information, and the status indication module performs status indication in different modes according to the verification control signal.

6. A display control system, characterized in that, The display control system includes: a host computer, a device host, a device screen, and a terminal box according to any one of claims 1-5; The device host is connected to the first input terminal of the terminal box; the host computer is connected to the data input terminal of the terminal box; the device screen is connected to the output terminal of the terminal box. The terminal box controls the switching of the signal transmission channel between the first input terminal or the data input terminal and the output terminal.

7. The display control system according to claim 6, characterized in that, The display control system also includes a power interface; The power interface is used to output 5V / 3A power to supply power to the terminal box.

8. The display control system according to claim 7, characterized in that, The host computer is connected to the terminal box via a network cable; the terminal box is connected to the device host and the device screen via an HDMI cable or a VGA cable respectively; the power interface is connected to the terminal box via a TYPE-C cable.

Images