Debugging device, debugging method and debugging system

Abstract

The present invention provides a debugging device, a debugging method and a debugging system. The debugging device includes a controller and a signal transmission module; the signal transmission module includes a control unit, a switch unit, an input interface and N output interfaces; the nth output interface is electrically connected to the nth display; n is a positive integer less than or equal to N, and N is an integer greater than 1; the switch unit is electrically connected to the input interface and the N output interfaces respectively; the controller is used to provide a switch control signal to the control unit and a transmission control signal to the signal source; the signal source is used to provide a display signal with a driving strength to be transmitted to the input interface after receiving the transmission control signal; the control unit is used to control the switch unit to conduct the connection between the input interface and the output interface to be conducted after receiving the switch control signal. The present invention can make the signal source compatible with various types of displays and can ensure EMI (electromagnetic interference) performance.

Description

Technical Field

[0001] The present invention relates to the technical field of display debugging, and in particular to a debugging device, a debugging method and a debugging system. Background Art

[0002] In the related art, the display interface used to transmit the display signal needs to be compatible with most of the displays on the market. The quality of the display signal is the key factor in the failure of the compatibility test. When the signal source is connected to different displays, the impedance matching difference between the display interfaces leads to the difference in the quality of the display signal during the transmission process, which will cause some displays to be incompatible. The traditional debugging method requires a lot of experiments, the debugging speed is slow, the development cycle is very long, and it cannot ensure good EMI (electromagnetic interference) performance while ensuring compatibility. Summary of the invention

[0003] The main purpose of the present invention is to provide a debugging device, a debugging method and a debugging system to solve the problem that the existing debugging method has a slow debugging speed and cannot ensure good EMI (electromagnetic interference) performance while ensuring compatibility.

[0004] In order to achieve the above object, an embodiment of the present invention provides a debugging device for debugging a signal source, wherein the debugging device includes a controller and a signal transmission module;

[0005] The signal transmission module includes a control unit, a switch unit, an input interface and N output interfaces; the nth output interface is electrically connected to the nth display; n is a positive integer less than or equal to N, and N is an integer greater than 1;

[0006] The switch unit is electrically connected to the input interface and the N output interfaces respectively;

[0007] The controller is used to provide a switch control signal to the control unit and a transmission control signal to the signal source; the transmission control signal carries the driving strength to be transmitted; the switch control signal carries the output interface information to be turned on; the output interface to be turned on indicated by the output interface information to be turned on is one of the N output interfaces;

[0008] The signal source is used to provide the display signal with the drive strength to be transmitted to the input interface after receiving the transmission control signal;

[0009] The control unit is used for controlling the switch unit to switch on the connection between the input interface and the output interface to be switched on after receiving the switch control signal.

[0010] Optionally, the input interface and the output interface are both HDMI interfaces; or, the input interface and the output interface are both Type-C interfaces; or, the input interface and the output interface are both DP interfaces; or, the input interface and the output interface are both VGA interfaces; or, the input interface and the output interface are both DVI interfaces.

[0011] Optionally, the debugging device described in at least one embodiment of the present invention further includes a processing module;

[0012] The controller is used to provide a corresponding switch control signal to the control unit and a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each output interface, control the signal source to provide M display signals to the input interface in a time-sharing manner; the driving strengths of the M display signals are different from each other; M is a positive integer;

[0013] The processing module is used to obtain a driving strength set according to the display screen of the display, so that when a display signal having a driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the displays can display a predetermined screen;

[0014] The drive strength set includes at least one drive strength.

[0015] Optionally, the processing module is further used to provide a corresponding switch control signal to the control unit through the controller after obtaining the drive strength set, and provide a corresponding transmission control signal to the signal source through the controller, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each output interface, control the signal source to provide a display signal with a drive strength in the drive strength set to the input interface in a time-sharing manner, obtain a minimum drive strength that enables each of the displays to display a predetermined picture according to a display picture of each of the displays, and control the minimum drive strength to be stored in the signal source;

[0016] The minimum drive strength is included in the drive strength set.

[0017] Optionally, the signal transmission module further includes a communication unit;

[0018] The communication unit is used to receive a switch control signal and a transmission control signal from the controller, and provide the switch control signal and the transmission control signal to the control unit;

[0019] The control unit is used for providing the transmission control signal to the signal source.

[0020] Optionally, the switch unit includes a switch chip, and the switch chip includes at least one input pin and at least N output pins;

[0021] An input pin included in the switch chip is electrically connected to the input interface, and an nth output pin included in the switch chip is electrically connected to the nth output interface;

[0022] The control unit is used to control the switch chip to conduct the connection between the input interface and the output pin to be conducted after receiving the switch control signal;

[0023] The output pin to be turned on is an output pin included in the switch chip and electrically connected to the output interface to be turned on.

[0024] Optionally, the switch unit includes a first-stage switch chip and A second-stage switch chips; A is an integer greater than 1;

[0025] The first-stage switch chip includes at least one first-stage input pin and at least A first-stage output pins, and the second-stage switch chip includes at least one second-stage input pin and a plurality of second-stage output pins;

[0026] A first-stage input pin included in the first-stage switch chip is electrically connected to the input interface; an a-th first-stage output pin included in the first-stage switch chip is electrically connected to a second-stage input pin included in the a-th second-stage switch chip;

[0027] Each second-stage output pin included in the second-stage switch chip is electrically connected to a corresponding output interface respectively;

[0028] The control unit is used to control the first-stage switch chip and the A second-stage switch chips after receiving the switch control signal, so as to control the connection between the input interface and the output pin to be turned on;

[0029] The output pin to be turned on is an output pin included in the second-stage switch chip and electrically connected to the output interface to be turned on.

[0030] The embodiment of the present invention further provides a debugging method, which is applied to the above-mentioned debugging device and is used to debug the signal source. The debugging method includes:

[0031] The controller provides a corresponding switch control signal to the control unit and a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, controls the signal source to provide M display signals to the input interface in a time-sharing manner; the driving strengths of the M display signals are different from each other; M is a positive integer;

[0032] According to the display pictures of the display, a driving strength set is obtained, so that when a display signal having a driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the displays can display a predetermined picture;

[0033] After the driving strength set is obtained, the controller provides a corresponding switch control signal to the control unit, and the controller provides a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, the signal source is controlled to provide a display signal with a driving strength in the driving strength set to the input interface in a time-sharing manner, and according to the display screen of each of the displays, a minimum driving strength that enables each of the displays to display a predetermined screen is obtained, and the minimum driving strength is controlled to be stored in the signal source.

[0034] The embodiment of the present invention further provides a debugging system, comprising a signal source and the above-mentioned debugging device;

[0035] The debugging device is used to debug the signal source.

[0036] Optionally, the signal source includes a system-level chip, a display signal transmission interface and a first transmission control signal interface; the display signal transmission interface is electrically connected to the input interface; the system-level chip receives the transmission control signal through the first transmission control signal interface;

[0037] The system-level chip is used for providing a display signal with a driving strength to be transmitted to the input interface through the display signal transmission interface after receiving the transmission control signal.

[0038] The debugging device, debugging method and debugging system described in the embodiments of the present invention enable the signal source to be compatible with various types of displays and can ensure EMI (electromagnetic interference) performance while improving compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a structural diagram of a debugging device according to at least one embodiment of the present invention;

[0040] Figure 2 is a structural diagram of a debugging device according to at least one embodiment of the present invention;

[0041] Figure 3 is a structural diagram of a debugging device according to at least one embodiment of the present invention;

[0042] Figure 4 is a structural diagram of a debugging device according to at least one embodiment of the present invention;

[0043] Figure 5 It is a flowchart of a debugging method according to at least one embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The transistors used in all embodiments of the present invention may be triodes, thin film transistors, field effect transistors or other devices with the same characteristics. In the embodiments of the present invention, in order to distinguish the two electrodes of the transistor except the control electrode, one of the electrodes is called the first electrode and the other is called the second electrode.

[0046] In actual operation, when the transistor is a thin film transistor or a field effect transistor, the first electrode may be a drain electrode, and the second electrode may be a source electrode; or, the first electrode may be a source electrode, and the second electrode may be a drain electrode.

[0047] The debugging device described in the embodiment of the present invention is used to debug a signal source. The debugging device described in the embodiment of the present invention includes a controller and a signal transmission module;

[0048] The signal transmission module includes a control unit, a switch unit, an input interface and N output interfaces; the nth output interface is electrically connected to the nth display; n is a positive integer less than or equal to N; N is an integer greater than 1;

[0049] The switch unit is electrically connected to the input interface and the N output interfaces respectively;

[0050] The controller is used to provide a switch control signal to the control unit and a transmission control signal to the signal source; the transmission control signal carries the driving strength to be transmitted; the switch control signal carries the output interface information to be turned on; the output interface to be turned on indicated by the output interface information to be turned on is one of the N output interfaces;

[0051] The signal source is used to provide the display signal with the drive strength to be transmitted to the input interface after receiving the transmission control signal;

[0052] The control unit is used for controlling the switch unit to switch on the connection between the input interface and the output interface to be switched on after receiving the switch control signal.

[0053] When the debugging device described in the embodiment of the present invention is working, the controller provides a switch control signal to the control unit and provides a transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and each of the output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, the signal source is controlled to provide display signals with different driving strengths to the input interface in a time-sharing manner, so that each display can display according to the display signals with different driving strengths, observe the display effect of each display, record the driving strength that enables each display to display correctly (each display correctly displays means that each display can display a predetermined picture, and the predetermined picture is the picture corresponding to the display signal), and obtain a driving strength set, so that when the display signal with the driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the display can display the predetermined screen; then control the switch unit to conduct the connection between the input interface and each of the output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, control the signal source to provide a display signal with a driving strength in the driving strength set to the input interface in a time-sharing manner (the signal source can sequentially provide display signals with driving strengths from small to large to the input interface), and according to the display screen of each of the displays, obtain the minimum driving strength (the minimum driving strength is included in the driving strength set) that enables each of the displays to display a predetermined screen, and control the minimum driving strength to be stored in a register included in the signal source, so that the signal source can provide a display signal with the minimum driving strength to the display when it is officially working, so that the signal source can be compatible with various types of displays, and can improve compatibility while ensuring EMI (electromagnetic interference) performance.

[0054] In at least one embodiment of the present invention, the amplitudes of display signals with different driving strengths are different from each other. When the driving strength is large, the amplitude of the display signal is large, and when the driving strength is small, the amplitude of the display signal is small.

[0055] In at least one embodiment of the present invention, the display signal may include a video signal or an image signal, and the display signal may be a digital voltage signal, but is not limited thereto.

[0056] In a specific implementation, the signal transmission module can be connected to N displays through each output interface respectively. The types of the N displays can be different from each other and can cover all models of displays that most signal sources need to be compatible with in actual applications.

[0057] Optionally, the input interface and the output interface are both HDMI (High Definition Multimedia Interface) interfaces; or, the input interface and the output interface are both Type-C interfaces (Type-C interface is a universal serial bus interface); or, the input interface and the output interface are both DP (Display Port, Display Port is a digital video interface standard standardized by the Video Electronics Standards Association) interfaces; or, the input interface and the output interface are both VGA (Video Graphics Array) interfaces; or, the input interface and the output interface are both DVI (Digital Visual Interface) interfaces, but are not limited to this.

[0058] When the input interface and the output interface are both HDMI interfaces, the display signal may be an HDMI signal; when the input interface and the output interface are both DP interfaces, the display signal may be a DP signal; when the input interface and the output interface are both VGA interfaces, the display signal may be a VGA signal; when the input interface and the output interface are both DVI interfaces, the display signal may be a DVI signal;

[0059] In at least one embodiment of the present invention, the input interface and the output interface are HDMI interfaces as an example for description. In actual operation, the input interface and the output interface may be other types of interfaces for transmitting display signals.

[0060] In the related art, HDMI, as a universal display interface, is widely used in the display field. There are various brands and models of displays on the market. HDMI products need to be compatible with most displays on the market. In order to affix the HDMI logo, all HDMI products must pass the HDMI compatibility test. Among the reasons for failing the HDMI compatibility test, the quality of the HDMI signal is a key factor. When the signal source is connected to a display that is not accessible, the difference in impedance matching between the interfaces leads to a difference in the quality of the HDMI signal during the HDMI signal transmission process, which will cause the problem that some displays are not compatible. Adjusting the driving strength of the HDMI signal provided by the signal source is a way to improve compatibility. In traditional adjustment methods, a lot of experiments need to be done, the debugging speed is slow, and the development cycle is long. Moreover, the driving strength is related to the system EMI (electromagnetic interference) performance. If the driving strength is too large, the system EMI performance will be poor and cannot pass the EMI test. Therefore, the driving strength of the HDMI signal provided by the signal source needs to ensure good EMI performance while improving compatibility.

[0061] The embodiment of the present invention designs the signal transmission module (the various components included in the signal transmission module can be arranged on the adapter board) to control the display signal provided by the signal source to switch between different displays. The embodiment of the present invention can speed up the debugging speed of the display signal compatibility of the signal source, improve development efficiency, shorten the development cycle, save costs, and can select the minimum driving strength with the best compatibility, which can effectively reduce system EMI.

[0062] In at least one embodiment of the present invention, the signal transmission module may further include a communication unit;

[0063] The communication unit is used to receive a switch control signal and a transmission control signal from the controller, and provide the switch control signal and the transmission control signal to the control unit;

[0064] The control unit is used for providing the transmission control signal to the signal source.

[0065] like Figure 1 As shown, the debugging device according to the embodiment of the present invention is used to debug the signal source 10. The debugging device according to the embodiment of the present invention includes a controller 11 and a signal transmission module;

[0066] The signal transmission module includes a control unit M1, a switch unit Sc, a communication unit Cn, an input interface In and eight output interfaces, wherein the eight output interfaces are respectively a first output interface O1, a second output interface O2, a third output interface O3, a fourth output interface O4, a fifth output interface O5, a sixth output interface O6, a seventh output interface O7, and an eighth output interface O8;

[0067] The first output interface O1 is electrically connected to the first display D1; the second output interface O2 is electrically connected to the second display D2; the third output interface O3 is electrically connected to the third display D3; the fourth output interface O4 is electrically connected to the fourth display D4, the fifth output interface O1 is electrically connected to the fifth display D5; the sixth output interface O6 is electrically connected to the sixth display D6; the seventh output interface O7 is electrically connected to the seventh display D7; the eighth output interface O8 is electrically connected to the eighth display D8;

[0068] The switch unit Sc is electrically connected to the input interface In, the first output interface O1, the second output interface O2, the third output interface O3, the fourth output interface O4, the fifth output interface O5, the sixth output interface O6, the seventh output interface O7 and the eighth output interface O8 respectively;

[0069] The controller 11 is used to provide a switch control signal to the control unit M1 and a transmission control signal to the signal source 10; the transmission control signal carries the driving strength to be transmitted; the switch control signal carries the output interface information to be turned on; the output interface to be turned on indicated by the output interface information to be turned on is the first output interface, the second output interface O2, the third output interface O3, the fourth output interface O4, the fifth output interface O5, the sixth output interface O6, the seventh output interface O7 or the eighth output interface O8;

[0070] The signal source 10 is used to provide the display signal with the driving strength to be transmitted to the input interface In after receiving the transmission control signal;

[0071] The control unit M1 is used for controlling the switch unit Sc to conduct the connection between the input interface In and the output interface to be conducted after receiving the switch control signal.

[0072] exist Figure 1 In at least one embodiment of the debugging device shown, N is taken as 8 as an example. In actual operation, N may be an integer greater than 1.

[0073] exist Figure 1In at least one embodiment of the debugging device shown, the input interface In, the first output interface O1, the second output interface O2, the third output interface O3, the fourth output interface O4, the fifth output interface O5, the sixth output interface O6, the seventh output interface O7 and the eighth output interface O8 can be HDMI interfaces; the input interface In can be electrically connected to the signal source 10 through an HDMI signal line, the first output interface O1 can be electrically connected to the first display D1 through an HDMI signal line, the second output interface O1 can be electrically connected to the second display D2 through an HDMI signal line, the third output interface O3 can be electrically connected to the third display D3 through an HDMI signal line, the fourth output interface O4 can be electrically connected to the fourth display D4 through an HDMI signal line, the fifth output interface O5 can be electrically connected to the fifth display D5 through an HDMI signal line, the sixth output interface O6 can be electrically connected to the sixth display D6 through an HDMI signal line, the seventh output interface O7 can be electrically connected to the seventh display D7 through an HDMI signal line, and the eighth output interface O8 can be electrically connected to the eighth display D8 through an HDMI signal line, but is not limited to this.

[0074] exist Figure 1 In at least one embodiment of the debugging device shown, the control unit M1 may be a MCU (microcontroller), but is not limited thereto.

[0075] exist Figure 1 In at least one embodiment of the debugging device shown, the controller 11 is communicatively connected to the communication unit Cn, the controller 11 sends the switch control signal and the transmission control signal to the communication unit Cn, the communication unit Cn sends the switch control signal and the transmission control signal to the control unit M1; the control unit M1 forwards the transmission control signal to the signal source 10.

[0076] exist Figure 1 In at least one embodiment of the debugging device shown, the communication unit Cn may be a Bluetooth module that receives the switch control signal and the transmission control signal via Bluetooth, and the controller 11 may be a remote controller, but is not limited thereto.

[0077] In actual operation, the communication unit Cn may also include a device that transmits signals in other ways, and the communication unit may also be electrically connected to the controller 11 .

[0078] In at least one embodiment of the present invention, the controller 11 is not limited to being a remote controller, and the controller 11 can be any device that can send a control signal.

[0079] like Figure 2 As shown, in Figure 1 Based on at least one embodiment of the debugging device shown, the signal source may include a system-level chip S1, a display signal transmission interface I1 and a first transmission control signal interface U1;

[0080] The signal transmission module may include a second transmission control signal interface U2, and the control unit M1 may forward the transmission control signal to the first transmission control signal interface U1 included in the signal source 10 through the second transmission control signal interface U2, and transmit the transmission control signal to the system-level chip S1 through the first transmission control signal interface U1;

[0081] The display signal transmission interface I1 is electrically connected to the input interface In;

[0082] The system-level chip S1 is used for providing a display signal with a driving strength to be transmitted to the input interface In through the display signal transmission interface I1 after receiving the transmission control signal.

[0083] exist Figure 2 In at least one embodiment shown, the first transmission control signal interface U1 and the second transmission control signal interface U2 may be USB (Universal Serial Bus) interfaces, and the display signal transmission interface I1 may be an HDMI interface, but is not limited thereto.

[0084] exist Figure 2 In at least one embodiment shown, the system-level chip S1 may include a register. During the debugging process, the register may store the current driving strength to be sent, and the driving strength of the display signal sent by the signal source may be changed by changing the information stored in the register.

[0085] exist Figure 2 In at least one embodiment shown, the components included in the signal transmission module can be arranged on the adapter board 12, the controller can be a remote controller, the communication unit can be a Bluetooth module, and the control unit can be an MCU.

[0086] The present invention Figure 2At least one embodiment of the debugging device shown is designed to control the display signal provided by the signal source to switch between different displays by designing an adapter board. The adapter board receives the command sent by the remote control via Bluetooth, and for each display, the remote control adjusts the driving strength of the display signal, and sends the adjustment command (i.e., the transmission control signal) to the MCU via Bluetooth. The MCU transmits the transmission control signal to the system-level chip S1 via the USB interface, and S1 changes the register information to achieve the change of the driving strength; then, the setting range of the register that each display can display correctly is determined, and the driving strength set (the driving strength set includes at least one driving strength) is determined, and all displays are verified from the smallest to the smallest in the driving strength combination until all displays display correctly, and the parameters at this time are selected as the register parameters (i.e., the minimum driving strength is determined).

[0087] In the present invention, Figure 2 In at least one embodiment of the debugging device shown, in the signal source, the system-level chip S1 is the main control unit, which controls the display signal to be output from the display signal transmission interface I1. The system-level chip S1 receives the transmission control signal from the adapter board through the first transmission control signal interface U1, and adjusts the information stored in the register to achieve the change of the driving strength of the display signal sent by the signal source. The MCU communicates with the remote control through the Bluetooth module, receives the switch control signal of the remote control, and controls the switch unit Sc to switch the connection state between the input interface In and each output interface.

[0088] Optionally, the debugging device described in at least one embodiment of the present invention further includes a processing module;

[0089] The controller is used to provide a corresponding switch control signal to the control unit and a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, control the signal source to provide M display signals to the input interface in a time-sharing manner; the driving strengths of the M display signals are different from each other; M is a positive integer;

[0090] The processing module is used to obtain a driving strength set according to the display screen of the display, so that when a display signal having a driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the displays can display a predetermined screen;

[0091] The drive strength set includes at least one drive strength.

[0092] In actual operation, the debugging device described in at least one embodiment of the present invention may further include a processing module, and the processing module obtains a driving strength set according to the display screen of the display when the display receives signals with different driving strengths.

[0093] In a specific implementation, the processing module is also used to provide a corresponding switch control signal to the control unit through the controller after obtaining the drive strength set, and provide a corresponding transmission control signal to the signal source through the controller, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, control the signal source to provide a display signal with a drive strength in the drive strength set to the input interface in a time-sharing manner, obtain a minimum drive strength (the minimum drive strength is included in the drive strength set) that enables each of the displays to display a predetermined picture according to the display picture of each of the displays, and control the minimum drive strength to be stored in the signal source, so that when the signal source is officially working, it provides a display signal with the minimum drive strength to the display, so that the signal source can be compatible with various types of displays, and can improve compatibility while ensuring EMI (electromagnetic interference) performance.

[0094] like Figure 3 As shown, in Figure 1 Based on at least one embodiment of the debugging device shown, the debugging device according to at least one embodiment of the present invention further includes a processing module 30;

[0095] The controller 11 is used to provide a corresponding switch control signal to the control unit M1 and a corresponding transmission control signal to the signal source 10, so as to control the switch unit Sc to conduct the connection between the input interface and the eight output interfaces (the eight output interfaces are respectively the first output interface O1, the second output interface O2, the third output interface O3, the fourth output interface O4, the fifth output interface O5, the sixth output interface O6, the seventh output interface O7, and the eighth output interface O8) in a time-sharing manner, and when the switch unit Sc conducts the connection between the input interface and each of the output interfaces, control the signal source 10 to provide M display signals to the input interface In in a time-sharing manner; the driving strengths of the M display signals are different from each other; M is a positive integer;

[0096] The processing module 30 is used to obtain a driving strength set according to the display screen of the first display D1, the display screen of the second display D2, the display screen of the third display D3, the display screen of the fourth display D4, the display screen of the fifth display D5, the display screen of the sixth display D6, the display screen of the seventh display D7 and the display screen of the eighth display D8, so that when the display signal with the driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the displays can display the predetermined screen;

[0097] The drive strength set includes at least one drive strength;

[0098] The processing module 30 is also used to provide a corresponding switch control signal to the control unit M1 through the controller 11 after obtaining the driving strength set, and provide a corresponding transmission control signal to the signal source 10 through the controller 11, so as to control the switch unit Sc to conduct the connection between the input interface In and the eight output interfaces in a time-sharing manner, and when the switch unit Sc conducts the connection between the input interface In and each of the output interfaces in a time-sharing manner, control the signal source 10 to provide a display signal with a driving strength in the driving strength set to the input interface In in a time-sharing manner, obtain a minimum driving strength (the minimum driving strength is included in the driving strength set) that enables each of the displays to display a predetermined picture according to the display pictures of each of the displays, and control the minimum driving strength to be stored in the signal source 10, so as to provide a display signal with the minimum driving strength to the display when the signal source 10 is officially working, so that the signal source 10 can be compatible with various types of displays, and can ensure EMI (electromagnetic interference) performance while improving compatibility.

[0099] According to a specific implementation, the switch unit includes a switch chip, and the switch chip includes at least one input pin and at least N output pins;

[0100] An input pin included in the switch chip is electrically connected to the input interface, and an nth output pin included in the switch chip is electrically connected to the nth output interface;

[0101] The control unit is used to control the switch chip to conduct the connection between the input interface and the output pin to be conducted after receiving the switch control signal;

[0102] The output pin to be turned on is an output pin included in the switch chip and electrically connected to the output interface to be turned on.

[0103] In at least one embodiment of the present invention, the switch unit may include a switch chip, and the switch chip can control the connection between its input pin and each output pin in a time-sharing manner.

[0104] In a specific implementation, the switch chip may be a high-speed switch chip, but is not limited thereto.

[0105] According to another specific implementation, the switch unit includes a first-stage switch chip and A second-stage switch chips; A is an integer greater than 1;

[0106] The first-stage switch chip includes at least one first-stage input pin and at least A first-stage output pins, and the second-stage switch chip includes at least one second-stage input pin and a plurality of second-stage output pins;

[0107] A first-stage input pin included in the first-stage switch chip is electrically connected to the input interface; an a-th first-stage output pin included in the first-stage switch chip is electrically connected to a second-stage input pin included in the a-th second-stage switch chip;

[0108] Each second-stage output pin included in the second-stage switch chip is electrically connected to a corresponding output interface respectively;

[0109] The control unit is used to control the first-stage switch chip and the A second-stage switch chips after receiving the switch control signal, so as to control the connection between the input interface and the output pin to be turned on;

[0110] The output pin to be turned on is an output pin included in the second-stage switch chip and electrically connected to the output interface to be turned on.

[0111] In specific implementation, different compatible displays are required for different usage scenarios. When the number of compatible displays is large, a two-stage switch chip can be used because the number of output pins included in the switch chip is limited. The switch unit can include at least two second-stage switch chips to increase the number of displays that can be compatible with the debugging device described in at least one embodiment of the present invention.

[0112] like Figure 4 As shown, in Figure 2 Based on at least one embodiment of the debugging device shown, the controller 11 is a remote controller;

[0113] The switch unit may be a first switch chip 41, a second switch chip 42 and a third switch chip 43, wherein the first switch chip 41 is a first-stage switch chip, the second switch chip 42 is a first second-stage switch chip, and the third switch chip 43 is a second second-stage switch chip;

[0114] The first switch chip 41 includes one input pin and two output pins; the second switch chip 42 includes one input pin and four output pins; the third switch chip 43 includes one input pin and four output pins;

[0115] The input pin of the first switch chip 41 is electrically connected to the input interface In, the first output pin of the first switch chip 41 is electrically connected to the input pin of the second switch chip 42, and the second output pin of the first switch chip 41 is electrically connected to the input pin of the third switch chip 43;

[0116] The first output pin of the second switch chip 42 is electrically connected to the first output interface O1, the second output pin of the second switch chip 42 is electrically connected to the second output interface O2, the third output pin of the second switch chip 42 is electrically connected to the third output interface O3, and the fourth output pin of the second switch chip 42 is electrically connected to the fourth output interface O4;

[0117] The first output pin of the third switch chip 43 is electrically connected to the fifth output interface O5, the second output pin of the third switch chip 43 is electrically connected to the sixth output interface O6, the third output pin of the third switch chip 43 is electrically connected to the seventh output interface O7, and the fourth output pin of the third switch chip 43 is electrically connected to the eighth output interface O8.

[0118] The present invention Figure 4 At least one embodiment of the debugging device shown can support debugging of 8 types of displays. By analogy, by increasing the number of second-level switch chips, it can be compatible with debugging of more types of displays and achieve extended functions.

[0119] exist Figure 4 In at least one embodiment of the debugging device shown, M is equal to 10 as an example.

[0120] The present invention Figure 4 At least one embodiment of the debugging device shown in the figure is in operation.

[0121] The remote controller controls the input interface In to be connected to the first output interface O1 to select the first display D1, and the remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the first display D1, and records the driving intensity range that the first display D1 can correctly display;

[0122] The remote controller controls the input interface In to be connected to the second output interface O2 to select the second display D1, and the remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the second display D2, and records the driving intensity range that the second display D2 can correctly display;

[0123] The remote controller controls the input interface In to be connected to the third output interface O3 to select the third display D3, and the remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the third display D3, and records the driving intensity range that the third display D3 can correctly display;

[0124] The remote controller controls the input interface In to be connected to the fourth output interface O4 to select the fourth display D4, and the remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the fourth display D4, and records the driving intensity range that the fourth display D4 can correctly display;

[0125] The remote controller controls the input interface In to be connected to the fifth output interface O5 to select the fifth display D5, and the remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the fifth display D5, and records the driving intensity range that the fifth display D5 can correctly display;

[0126] The remote controller controls the input interface In to be connected to the sixth output interface O6 to select the sixth display D6, and the remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the sixth display D6, and records the driving intensity range that the sixth display D6 can correctly display;

[0127] The remote controller controls the input interface In to be connected to the seventh output interface O7 to select the seventh display D7 for connection. The remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the seventh display D7, and records the driving intensity range that the seventh display D7 can correctly display.

[0128] The remote controller controls the input interface In to be connected to the eighth output interface O8 to select the eighth display D8, and the remote controller controls the signal source 10 to output at 10 driving intensities respectively, observes the display effect of the eighth display D8, and records the driving intensity range that the eighth display D8 can correctly display;

[0129] Selecting a set of driving strengths that can be correctly displayed by the first display D1, the second display D2, the third display D3, the fourth display D4, the fifth display D5, the sixth display D6, the seventh display D7 and the eighth display D8, wherein the driving strength combination includes at least one driving strength;

[0130] Selecting a minimum value of the driving strength included in the driving strength set;

[0131] The first display D1, the second display D2, the third display D3, the fourth display D4, the fifth display D5, the sixth display D6, the seventh display D7 and the eighth display D8 are connected in sequence, and the signal source 10 provides a display signal with the minimum value of the driving strength to verify the display conditions of the eight displays under this driving strength; if the eight displays can all display normally, the debugging is completed, and the minimum value of the driving strength is taken as the minimum driving strength; if there is a display that cannot display correctly among the eight displays, the driving strength is increased by one level in the driving strength set, and the display conditions of the eight displays are verified again, until the eight displays can all display normally, the current driving strength is selected as the minimum driving strength, and the debugging is completed.

[0132] The debugging method described in the embodiment of the present invention is applied to the above-mentioned debugging device to debug the signal source, such as Figure 5 As shown, the debugging method includes:

[0133] P1: The controller provides a corresponding switch control signal to the control unit and a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, controls the signal source to provide M display signals to the input interface in a time-sharing manner; the driving strengths of the M display signals are different from each other; M is a positive integer;

[0134] P2: according to the display pictures of the display, a driving strength set is obtained, so that when a display signal having a driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the displays can display a predetermined picture;

[0135] P3: After obtaining the driving strength set, the controller provides a corresponding switch control signal to the control unit, and the controller provides a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, the signal source is controlled to provide a display signal with a driving strength in the driving strength set to the input interface in a time-sharing manner, and according to the display screen of each of the displays, the minimum driving strength that enables each of the displays to display a predetermined screen is obtained, and the minimum driving strength is controlled to be stored in the signal source, so that when the signal source is officially working, it provides a display signal with the minimum driving strength to the display, so that the signal source can be compatible with various types of displays, and can ensure EMI (electromagnetic interference) performance while improving compatibility.

[0136] The debugging system described in the embodiment of the present invention includes a signal source and the above-mentioned debugging device;

[0137] The debugging device is used to debug the signal source.

[0138] In a specific implementation, the signal source may include a system-level chip, a display signal transmission interface and a transmission control signal interface; the display signal transmission interface is electrically connected to the input interface; the system-level chip receives the transmission control signal through the transmission control signal interface;

[0139] The system-level chip is used for providing a display signal with a driving strength to be transmitted to the input interface through the display signal transmission interface after receiving the transmission control signal.

[0140] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A debugging device for debugging a signal source, characterized in that: The debugging device includes a controller and a signal transmission module; The signal transmission module includes a control unit, a switch unit, an input interface and N output interfaces; the nth output interface is electrically connected to the nth display; n is a positive integer less than or equal to N, and N is an integer greater than 1; The switch unit is electrically connected to the input interface and the N output interfaces respectively; The controller is used to provide a switch control signal to the control unit and a transmission control signal to the signal source; the transmission control signal carries the drive strength to be transmitted; the switch control signal carries the output interface information to be turned on; The output interface to be connected indicated by the output interface to be connected information is one of the N output interfaces; The signal source is used to provide the display signal with the drive strength to be transmitted to the input interface after receiving the transmission control signal; The control unit is used for controlling the switch unit to switch on the connection between the input interface and the output interface to be switched on after receiving the switch control signal; The debugging device also includes a processing module; The controller is used to provide a corresponding switch control signal to the control unit and a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each output interface, control the signal source to provide M display signals to the input interface in a time-sharing manner; the driving strengths of the M display signals are different from each other; M is a positive integer; The processing module is used to obtain a driving strength set according to the display screen of the display, so that when a display signal having a driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the displays can display a predetermined screen; The drive strength set includes at least one drive strength; The processing module is further used for, after obtaining the driving strength set, providing a corresponding switch control signal to the control unit through the controller, and providing a corresponding transmission control signal to the signal source through the controller, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each output interface, controlling the signal source to provide a display signal having a driving strength in the driving strength set to the input interface in a time-sharing manner, obtaining a minimum driving strength that enables each of the displays to display a predetermined picture according to a display picture of each of the displays, and controlling the minimum driving strength to be stored in the signal source; The minimum drive strength is included in the drive strength set.

2. The debugging device according to claim 1, characterized in that: The input interface and the output interface are both HDMI interfaces; or, the input interface and the output interface are both Type-C interfaces; or, the input interface and the output interface are both DP interfaces; or, the input interface and the output interface are both VGA interfaces; or, the input interface and the output interface are both DVI interfaces.

3. The debugging device according to claim 1, characterized in that: The signal transmission module also includes a communication unit; The communication unit is used to receive a switch control signal and a transmission control signal from the controller, and provide the switch control signal and the transmission control signal to the control unit; The control unit is used for providing the transmission control signal to the signal source.

4. The debugging device according to any one of claims 1 to 3, characterized in that: The switch unit includes a switch chip, and the switch chip includes at least one input pin and at least N output pins; An input pin included in the switch chip is electrically connected to the input interface, and an nth output pin included in the switch chip is electrically connected to the nth output interface; The control unit is used to control the switch chip to conduct the connection between the input interface and the output pin to be conducted after receiving the switch control signal; The output pin to be turned on is an output pin included in the switch chip and electrically connected to the output interface to be turned on.

5. The debugging device according to any one of claims 1 to 3, characterized in that: The switch unit includes a first-stage switch chip and A second-stage switch chips; A is an integer greater than 1; The first-stage switch chip includes at least one first-stage input pin and at least A first-stage output pins, and the second-stage switch chip includes at least one second-stage input pin and a plurality of second-stage output pins; A first-stage input pin included in the first-stage switch chip is electrically connected to the input interface; an a-th first-stage output pin included in the first-stage switch chip is electrically connected to a second-stage input pin included in the a-th second-stage switch chip; Each second-stage output pin included in the second-stage switch chip is electrically connected to a corresponding output interface respectively; The control unit is used to control the first-stage switch chip and the A second-stage switch chips after receiving the switch control signal, so as to control the connection between the input interface and the output pin to be turned on; The output pin to be turned on is an output pin included in the second-stage switch chip and electrically connected to the output interface to be turned on.

6. A debugging method, applied to the debugging device according to any one of claims 1 to 5, for debugging a signal source, characterized in that: The debugging method comprises: The controller provides a corresponding switch control signal to the control unit and a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, controls the signal source to provide M display signals to the input interface in a time-sharing manner; the driving strengths of the M display signals are different from each other; M is a positive integer; According to the display pictures of the display, a driving strength set is obtained, so that when a display signal having a driving strength included in the driving strength set is transmitted to each of the displays through the switch unit, the displays can display a predetermined picture; After the driving strength set is obtained, the controller provides a corresponding switch control signal to the control unit, and the controller provides a corresponding transmission control signal to the signal source, so as to control the switch unit to conduct the connection between the input interface and the N output interfaces in a time-sharing manner, and when the switch unit conducts the connection between the input interface and each of the output interfaces, the signal source is controlled to provide a display signal with a driving strength in the driving strength set to the input interface in a time-sharing manner, and according to the display screen of each of the displays, a minimum driving strength that enables each of the displays to display a predetermined screen is obtained, and the minimum driving strength is controlled to be stored in the signal source.

7. A debugging system, characterized in that: A debugging device comprising a signal source and any one of claims 1 to 5; The debugging device is used to debug the signal source.

8. The debugging system according to claim 7, characterized in that: The signal source includes a system-level chip, a display signal transmission interface and a first transmission control signal interface; the display signal transmission interface is electrically connected to the input interface; the system-level chip receives the transmission control signal through the first transmission control signal interface; The system-level chip is used for providing a display signal with a driving strength to be transmitted to the input interface through the display signal transmission interface after receiving the transmission control signal.

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