CN112203035B - Image input adapter plate and image signal detection system - Google Patents
Image input adapter plate and image signal detection system Download PDFInfo
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- CN112203035B CN112203035B CN202011070406.9A CN202011070406A CN112203035B CN 112203035 B CN112203035 B CN 112203035B CN 202011070406 A CN202011070406 A CN 202011070406A CN 112203035 B CN112203035 B CN 112203035B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
Abstract
The invention discloses an image input adapter plate and an image signal detection system. The image input adapter plate comprises a first port, a second port and an adapter port; the first port comprises a first signal transmission pin, the second port comprises a second signal transmission pin, pins corresponding to the first signal transmission pin and the second signal transmission pin are arranged in the switching port, the first signal transmission pin and the second signal transmission pin are respectively connected with the pins of the switching port correspondingly, and the switching port is also connected with the detection equipment; through the design of the image input adapter plate, a first image signal output by a first screen line port (such as a 51-bit screen line port) or a second image signal output by a second screen line port (such as a 30-bit screen line port) of the mainboard can be sent to the detection equipment for detection, so that the times of manual switching are reduced, and the compatibility of the detection equipment is improved.
Description
Technical Field
The invention relates to the field of mainboard testing, in particular to an image input adapter plate and an image signal detection system.
Background
Electronic devices such as flat panel televisions, computers, or mobile phones generally output image signals from a main board through a screen line and display the image signals on a display screen. When testing image signals, one end of a screen line is usually connected with a main board, and the other end of the screen line is connected with professional detection equipment, and the professional detection equipment is used for testing.
The image signals in the LVDS format are usually transmitted through 51-bit screen lines or 30-bit screen lines, however, the current professional detection equipment only has 51-bit ports, so that only the image signals output by the 51-bit screen lines can be detected, the image signals output by the 30-bit screen lines cannot be accessed, and the compatibility is poor.
Disclosure of Invention
The invention mainly aims to provide an image input adapter plate and an image signal detection system, and aims to solve the technical problem that image signal detection equipment in the prior art is poor in compatibility.
In order to achieve the above object, the present invention provides an image input interposer, including: a first port, a second port and a switching port; the first port comprises a first signal transmission pin, the second port comprises a second signal transmission pin, pins corresponding to the first signal transmission pin and the second signal transmission pin are arranged in the switching port, the first signal transmission pin and the second signal transmission pin are respectively connected with the pins of the switching port correspondingly, and the switching port is also connected with detection equipment; wherein the content of the first and second substances,
the first port is used for receiving a first image signal output by a first screen line port of a mainboard and sending the first image signal to the switching port through the first signal transmission pin;
the second port is used for receiving a second image signal output by a second screen line port of the mainboard and sending the second image signal to the switching port through the second signal transmission pin;
the switching port is configured to receive the first image signal or the second image signal through a pin corresponding to the first signal transmission pin or the second signal transmission pin, and send the first image signal or the second image signal to the detection device.
Preferably, the first port further comprises a first voltage output pin, a second voltage output pin and a third voltage output pin; the image input adapter plate also comprises a voltage detection port and a first resistor; the first voltage output pin, the second voltage output pin and the third voltage output pin are respectively connected with a first end of a first resistor; the second end of the first resistor is connected with the voltage detection port.
Preferably, the second port further includes a fourth voltage output pin, a fifth voltage output pin, a sixth voltage output pin, and a seventh voltage output pin; the fourth voltage output pin, the fifth voltage output pin, the sixth voltage output pin and the seventh voltage output pin are respectively connected with the first end of the first resistor.
Preferably, the image input adapter plate further comprises a second resistor, a third resistor and a fourth resistor; the first end of the second resistor is connected with the first voltage output pin, the first end of the third resistor is connected with the second voltage output pin, the first end of the fourth resistor is connected with the third voltage output pin, and the second end of the second resistor, the second end of the third resistor and the second end of the fourth resistor are connected with the first end of the first resistor.
Preferably, the second resistor, the third resistor and the fourth resistor are all 0 Ω resistors.
The invention also provides an image signal detection system which comprises the image input adapter plate.
Preferably, the image signal detection system further comprises a detection device, and the detection device is connected with the switching port.
Preferably, the image signal detection system further includes a connection line, one end of the connection line is provided with a third port corresponding to the first port, the other end of the connection line is provided with a fourth port corresponding to the switching port, the third port is connected to the first port, and the fourth port is connected to the switching port.
Preferably, the first port is connected with a 51-bit screen line port of the mainboard.
Preferably, the second port is connected with a 30-bit screen line port of the mainboard
The image input adapter plate is provided with a first port, a second port and an adapter port; the first port comprises a first signal transmission pin, the second port comprises a second signal transmission pin, pins corresponding to the first signal transmission pin and the second signal transmission pin are arranged in the switching port, the first signal transmission pin and the second signal transmission pin are respectively connected with the pins of the switching port correspondingly, and the switching port is also connected with the detection equipment; the first port is used for receiving a first image signal output by a first screen line port of the mainboard and sending the first image signal to the switching port through a first signal transmission pin; the second port is used for receiving a second image signal output by a second screen line port of the mainboard and sending the second image signal to the switching port through a second signal transmission pin; the adapter port is used for correspondingly receiving a first image signal or a second image signal through a pin corresponding to the first signal transmission pin or the second signal transmission pin and sending the first image signal or the second image signal to the detection equipment, wherein through the design of the image input adapter plate, the first image signal output by a first screen line port (such as a 51-bit screen line port) or the second image signal output by a second screen line port (such as a 30-bit screen line port) of the mainboard can be sent to the detection equipment for detection, the times of manual switching are reduced, and the compatibility of the detection equipment is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a functional diagram of an image input adapter plate according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of an image input adapter plate according to the present invention;
FIG. 3 is a functional diagram of an image signal detection system according to an embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an image input adapter plate.
Referring to fig. 1, in an embodiment, the image input patch panel includes a first port P1, a second port P2, and a patch port PT; the first port P1 includes a first signal transmission pin RX0, the second port P2 includes a second signal transmission pin RXE0, pins corresponding to the first signal transmission pin RX0 and the second signal transmission pin RXE0 are disposed in the adaptor port PT, the first signal transmission pin RX0 and the second signal transmission pin RXE0 are respectively connected to pins of the adaptor port PT, and the adaptor port PT is further connected to a detection device (not shown); the first port P1 is configured to receive a first image signal output by a first screen line port of a motherboard and send the first image signal to the transit port PT through the first signal transmission pin RX 0; the second port P2 is configured to receive a second image signal output by a second screen line port of the motherboard, and send the second image signal to the transfer port PT through the second signal transmission pin RXE 0; the patch port PT is configured to receive the first image signal or the second image signal through a pin corresponding to the first signal transmission pin RX0 or the second signal transmission pin RXE0, and send the first image signal or the second image signal to the detection device.
It is understood that the first screen line port may be a 51-bit screen line port on the motherboard, and the second screen line port may be a 30-bit screen line port on the motherboard. Because the detection device only has 51-bit ports and does not have 30-bit ports, and the second image signals output by the 30-bit screen line ports of the mainboard cannot be detected, the embodiment designs the image input adapter board, wherein the adapter port PT can be compatible with the first image signals output by the 51-bit screen line ports and the second image signals output by the 30-bit screen line ports at the same time, and the adapter port PT is connected with the 51-bit ports on the detection device through the connecting wire, so that the detection of the two image signals can be realized.
It should be noted that the first port P1 is a 51-bit port, and the definition of the port can be referred to as the following table one:
| 1 foot | VCC1 |
| 2 feet | VCC2 |
| 3 feet | VCC3 |
| 11 feet | RX05+ |
| 12 feet | RX05- |
| 13 feet | RX04+ |
| 14 feet | RX04- |
| 16 feet | RX03+ |
| 17 feet | RX03- |
| 19 feet | RX02+ |
| 20 feet | RX02- |
| 21 feet | RX01+ |
| 22 foot | RX01- |
| 23 feet | RX00+ |
| 24 feet | RX00- |
Watch 1
The 1 st to 3 rd pins are respectively a first voltage output pin VCC1, a second voltage output pin VCC2 and a third voltage output pin VCC3, and the 11 th to 12 th pins, the 13 th to 14 th pins, the 16 th to 17 th pins, the 19 th to 20 th pins, the 21 th to 22 th pins and the 23 th to 24 th pins are respectively six pairs of signal transmission pins, namely a first signal transmission pin RX 0.
The second port P2 is a 30-bit port, and the definition of the port can be as follows:
| 1 foot | VCC4 |
| 2 foot | VCC5 |
| 3 feet | VCC6 |
| 4 feet | VCC7 |
| 12 feet | RXE0- |
| 13 feet | RXE0+ |
| 15 feet | RXE1- |
| 16 feet | RXE1+ |
| 18 feet | RXE2- |
| 19 feet | RXE2+ |
| 21 foot | RXE3- |
| 22 foot | RXE3+ |
| 24 feet | RXE4- |
| 25 feet | RXE4+ |
| 27 feet | RXE5- |
| 28 feet | RXE5+ |
Watch two
The 1 st to 4 th pins are respectively a fourth voltage output pin VCC4, a fifth voltage output pin VCC5, a sixth voltage output pin VCC6 and a seventh voltage output pin VCC7, and the 12 th to 13 th pins, the 15 th to 16 th pins, the 18 th to 19 th pins, the 21 st to 22 th pins, the 24 th to 25 th pins and the 27 th to 28 th pins are respectively six pairs of signal transmission pins, namely, a second signal transmission pin RXE 0.
The transit port PT is a 36-bit port, and the definition of the port can be referred to as the following table three:
watch III
The 5 th to 16 th pins are pins RX0 'corresponding to the first signal transmission pins RX0, and the 23 th to 34 th pins are pins RXE 0' corresponding to the second signal transmission pins RXE 0. The connection relationship between the first signal transmission pin RX0 of the first port P1 and the corresponding pin of the transit port PT, and the connection relationship between the second signal transmission pin RXE0 of the second port P2 and the corresponding pin of the transit port PT can be referred to in fig. 2, and are not repeated herein.
Further, the image input adapter plate further comprises a voltage detection port PV and a first resistor R1; the first voltage output pin VCC1, the second voltage output pin VCC2 and the third voltage output pin VCC3 are respectively connected to a first end of a first resistor R1; a second terminal of the first resistor R1 is connected to the voltage detection port PV.
The second port P2 further includes a fourth voltage output pin VCC4, a fifth voltage output pin VCC5, a sixth voltage output pin VCC6, and a seventh voltage output pin VCC 7; the fourth voltage output pin VCC4, the fifth voltage output pin VCC5, the sixth voltage output pin VCC6, and the seventh voltage output pin VCC7 are respectively connected to the first end of the first resistor R1.
It should be understood that the voltage detection port PV is used for detecting the voltage of the first port P1 or the second port P2 when the shielded wire is accessed.
Further, the image input patch panel further comprises a second resistor R2, a third resistor R3 and a fourth resistor R4; the first end of second resistance R2 with first voltage output pin VCC1 is connected, the first end of third resistance R3 with second voltage output pin VCC2 is connected, the first end of fourth resistance R4 with third voltage output pin VCC3 is connected, the second end of second resistance R2 the second end of third resistance R3 reaches the second end of fourth resistance R4 with first end of first resistance R1 is connected. The second resistor R2, the third resistor R3 and the fourth resistor R4 are all 0 Ω resistors.
It should be understood that when the screen wire is connected to the first port P1, the first voltage output pin VCC1, the second voltage output pin VCC2, and the third voltage output pin VCC3 may all output the voltage of the first port P1 (i.e., the voltage of the first port P1 when the screen wire is connected), and the three pins may be protected by connecting 0 Ω resistors respectively to the three pins, so as to prevent the component from being burned out due to abnormal voltages on the three pins.
In a specific implementation, a 51-bit screen line port of the main board may be connected to the first port P1 on the adapter board through a screen line, a 36-bit port of the connection line is connected to the adapter port PT on the adapter board, a 51-bit port of the connection line is connected to a 51-bit port of the detection device, and the voltage indicator lamp of the detection device is connected to the voltage detection port PV. When the mainboard is started, the first image signal can be transmitted to the detection equipment and whether the first port P1 has voltage or not can be detected;
a30-bit screen line port of the mainboard is connected with a second port P2 on the adapter plate through a screen line, a 36-bit port of the connecting line is connected with a switching port PT on the adapter plate, a 51-bit port of the connecting line is connected with a 51-bit port of the detection equipment, and a voltage indicator lamp of the detection equipment is connected into a voltage detection port PV. When the motherboard is powered on, the second image signal is transmitted to the detection device and whether the second port P2 has voltage is detected.
In the embodiment, a first port, a second port and a switching port are arranged in an image input adapter plate; the first port comprises a first signal transmission pin, the second port comprises a second signal transmission pin, pins corresponding to the first signal transmission pin and the second signal transmission pin are arranged in the switching port, the first signal transmission pin and the second signal transmission pin are respectively connected with the pins of the switching port correspondingly, and the switching port is also connected with the detection equipment; the first port is used for receiving a first image signal output by a first screen line port of the mainboard and sending the first image signal to the switching port through a first signal transmission pin; the second port is used for receiving a second image signal output by a second screen line port of the mainboard and sending the second image signal to the switching port through a second signal transmission pin; the adapter port is used for correspondingly receiving a first image signal or a second image signal through a pin corresponding to the first signal transmission pin or the second signal transmission pin and sending the first image signal or the second image signal to the detection equipment, wherein through the design of the image input adapter plate, the first image signal output by a first screen line port (such as a 51-bit screen line port) or the second image signal output by a second screen line port (such as a 30-bit screen line port) of the mainboard can be sent to the detection equipment for detection, the times of manual switching are reduced, and the compatibility of the detection equipment is improved.
The invention also provides an image signal detection system, which comprises the image input adapter plate, wherein the circuit structure of the image input adapter plate of the image signal detection system can refer to the embodiment and is not described herein again; it can be understood that, since the image signal detection system of the present embodiment adopts the technical solution of the image input adapter plate, the image signal detection system has all the above beneficial effects.
Referring to fig. 3, the image signal detection system further includes a detection device (not shown), and the detection device is connected to the transfer port PT.
Further, the image signal detection system further includes a connection line L, one end of the connection line L is provided with a third port P3 corresponding to the first port P1, the other end of the connection line L is provided with a fourth port P4 corresponding to the switching port PT, the third port P3 is connected to the first port P1, and the fourth port P4 is connected to the switching port PT.
The first port P1 is connected to a 51-bit line port (not labeled) of the motherboard.
The second port P2 is connected to a 30-bit line port (not labeled) of the motherboard.
It can be understood that the first port P1 is connected to a 51-bit screen line port of the motherboard via a 51-bit screen line to obtain a first image signal, and the second port P2 is connected to a 30-bit screen line port of the motherboard via a 30-bit screen line to obtain a second image signal.
The third port P3 is a 51-port and the fourth port P4 is a 36-port, and by using the connecting line L having two ports, the first image signal or the second image signal in the patch port PT on the patch panel can be transmitted to the 51-port of the detection device, so that the detection device can detect the image signal.
In the embodiment, through the design of the image signal detection system, the detection equipment can be enabled to be in butt joint with the first image signal output by the 51-bit screen line port of the mainboard and the second image signal output by the 30-bit screen line port of the mainboard, so that the detection without using an original screen is realized, the use efficiency of the equipment is improved, and the purchase cost of the original screen is reduced; simultaneously, use professional check out test set to detect, need not erect the original screen of dress repeatedly, reduced artifical switching number of times and artifical switching original screen operating strength, improved efficiency of software testing to can prevent to a certain extent that the original screen of dress in the handling from damaging.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An image input adapter plate is characterized by comprising a first port, a second port, an adapter port, a voltage detection port and a first resistor; the first port comprises a first signal transmission pin, a first voltage output pin, a second voltage output pin and a third voltage output pin, the second port comprises a second signal transmission pin, a fourth voltage output pin, a fifth voltage output pin, a sixth voltage output pin and a seventh voltage output pin, the switching port is provided with pins corresponding to the first signal transmission pin and the second signal transmission pin, the first signal transmission pin and the second signal transmission pin are respectively connected with the pins of the switching port correspondingly, the switching port is also connected with detection equipment, and the first voltage output pin, the second voltage output pin, the third voltage output pin, the fourth voltage output pin, the fifth voltage output pin, the sixth voltage output pin and the seventh voltage output pin are respectively connected with the first end of a first resistor; the second end of the first resistor is connected with the voltage detection port; wherein the content of the first and second substances,
the first port is used for receiving a first image signal output by a first screen line port of a mainboard and sending the first image signal to the transfer port through the first signal transmission pin;
the second port is used for receiving a second image signal output by a second screen line port of the mainboard and sending the second image signal to the switching port through the second signal transmission pin;
the switching port is configured to receive the first image signal or the second image signal through a pin corresponding to the first signal transmission pin or the second signal transmission pin, and send the first image signal or the second image signal to the detection device, where the switching port is compatible with a first image signal output by a 51-bit screen line port and a second image signal output by a 30-bit screen line port.
2. The image input interposer as recited in claim 1, wherein said image input interposer further comprises a second resistor, a third resistor, and a fourth resistor; the first end of the second resistor is connected with the first voltage output pin, the first end of the third resistor is connected with the second voltage output pin, the first end of the fourth resistor is connected with the third voltage output pin, and the second end of the second resistor, the second end of the third resistor and the second end of the fourth resistor are connected with the first end of the first resistor.
3. The image input interposer as in claim 2, wherein said second resistor, said third resistor and said fourth resistor are all 0 Ω resistors.
4. An image signal detection system comprising the image input adaptor board as claimed in any one of claims 1 to 3.
5. The image signal detection system according to claim 4, further comprising a detection device connected to the transit port.
6. The image signal detection system according to claim 5, further comprising a connection line, one end of the connection line being provided with a third port corresponding to the first port, the other end of the connection line being provided with a fourth port corresponding to the transfer port, the third port being connected to the first port, the fourth port being connected to the transfer port.
7. The image signal detection system according to claim 6, wherein the first port is connected to a 51-bit screen line port of a main board.
8. The image signal detection system according to claim 6, wherein the second port is connected to a 30-bit screen line port of the main board.
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