CN111104352A - Method for automatically switching display output and OPS computer host - Google Patents
Method for automatically switching display output and OPS computer host Download PDFInfo
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- CN111104352A CN111104352A CN201911237185.7A CN201911237185A CN111104352A CN 111104352 A CN111104352 A CN 111104352A CN 201911237185 A CN201911237185 A CN 201911237185A CN 111104352 A CN111104352 A CN 111104352A
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
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- G06F13/40—Bus structure
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Abstract
The invention discloses a method for automatically switching display output and an OPS computer host, belonging to the field of OPS, which is realized based on a control mainboard, a switching circuit and a display output interface, wherein the control mainboard comprises a CPU integrated with an integrated display card and an independent display card slot, the switching circuit is respectively and electrically connected with the control mainboard and the display output interface, and the method comprises the following steps: the CPU detects whether the MXM display card is inserted into the independent display card slot or not, and outputs a corresponding numerical value to the switching circuit according to a detection result; the switching circuit sets a corresponding GPIO interface according to the received numerical value, and automatically switches the corresponding display card to output to the display output interface. The invention can be output from the CPU integrated display card or the external independent display card, and can automatically switch to the output of the independent display card after the independent display card is provided, thereby avoiding manual intervention and meeting the market gap.
Description
Technical Field
The present invention relates to the field of OPS technologies, and in particular, to a method for automatically switching display output and an OPS computer host.
Background
The OPS computer is called: open plug-able Specification is a standardized digital signage interface Specification commonly established by Intel and display manufacturers. The internal composition of the OPS is a mini PC with an X86 architecture, an Intel core processor is adopted, and the OPS is provided with a memory, a hard disk, a plurality of input and output interfaces and a Windows operation interface and has two sizes, wherein the international standard size is 180mmx119mmx30 mm; the domestic standard size is 180mmx185mmx42 mm. The official definition is: the Open Pluggable Specification (OPS) helps the specification design and develop digital signage devices and plug in media player terminals.
The OPS microcomputer is a pluggable computer module in an open mode, is also a microcomputer, can be plugged and unplugged only, and is attractive in overall layout. It should be noted that the plug adaptor of the OPS computer is an 80PIN connector using JAE, so the OPS computer is generally used with an OPS adaptor board.
Because products such as traditional all-in-one computers, electronic whiteboards, digital signage adopt accessories such as DIY computer accessories or MINITX mainboard to assemble and install the display screen back, the inside wiring of this type of product is complicated, and the structure is loose, produce contact failure or pine very easily in transportation or use and take off to in case bad problem appears, must unpack whole display screen apart and overhaul, if do not have professional to arrive the scene, the customer oneself is inconvenient to maintain and change, under this kind of condition, the customer only sends back the packing of whole LCD screen to the producer or arranges professional technician by the producer to the on-the-spot processing. In either case, the cost is very high. The novel OPS open type plug-in computer standard is characterized in that a computer part is made into a modular standard product, a main board, an internal memory, a hard disk, WIFI, a power supply and the like are integrated together by a shell with a standard size, and a standard 80PIN JAE interface is adopted to be in butt joint with an OPS interface in a liquid crystal screen. The customer can also dismouting OPS computer part under the condition that does not have professional knowledge, even there is bad product, the customer also can be convenient sends the product back to the producer with the express delivery and maintains the change, greatly reduced commodity circulation and cost of labor.
By combining the advantages, the special host of the education all-in-one machine and the industrial control host with high performance become mainstream products in the market under the strong drive of market demands, and are widely applied to primary schools, high schools and high schools all over the country. Due to the structure, most OPS hosts in the market adopt the integrated display card to output and display, but multimedia teaching contents are increasingly rich, the requirements on hardware are gradually increased, and the demand on the market for connecting the OPS with the independent display card is further increased. Most OPS hosts in the market adopt integrated display cards to output and display, and high-performance OPS hosts capable of being connected with independent display cards are market gaps.
Disclosure of Invention
The invention provides a method for automatically switching display output and an OPS computer host, which can be output from a CPU integrated display card and an external independent display card, can be automatically switched to the independent display card for output after the independent display card is provided, does not need manual intervention, and meets the market gap.
The technical scheme of the invention is realized as follows:
the utility model provides a method for automatic switching display output, realizes based on control mainboard, switching circuit and display output interface, the control mainboard includes integrated display card's CPU and independent display card slot, switching circuit respectively with control mainboard and display output interface electric connection, specifically includes following step:
s1, the CPU detects whether the independent graphics card slot is inserted with the MXM graphics card, and outputs a corresponding numerical value to the switching circuit according to the detection result;
and S2, the switching circuit sets a corresponding GPIO interface according to the received numerical value, and automatically switches the corresponding display card to output to the display output interface.
As a preferred method for automatically switching display output according to the present invention, in step S1, the CPU and the switching circuit transmit the detection result through a pin SEL1 and a pin SEL2, and if the CPU detects that the MXM video card is inserted into the independent video card slot, the assignment pin SEL1 is 1, the pin SEL2 is 0, otherwise, the assignment pin SEL1 is 1, and the pin SEL2 is 1.
As a preferred method for automatically switching display output according to the present invention, in step S1, the CPU and the switching circuit transmit the detection result through a pin SEL1 and a pin SEL2, and if the CPU detects that the MXM video card is inserted into the independent video card slot, the assignment pin SEL1 is 1, the pin SEL2 is 1, otherwise, the assignment pin SEL1 is 1, and the pin SEL2 is 0.
As a preferred method for automatically switching display output in the present invention, in step S1, the CPU and the switching circuit transmit a detection result through a pin SEL1 and a pin SEL2, and a pin SEL1 and a pin SEL2 respectively correspond to an integrated graphics card and an MXM graphics card, if the CPU detects that an MXM graphics card is inserted into the independent graphics card slot, and if the switching circuit is controlled to switch to MXM graphics card output, the pin SEL1 is set to 0 and the pin SEL2 is set to 1; if the switching circuit is controlled to be switched to the output of the integrated display card, the assignment pin SEL1 is equal to 1, and the pin SEL2 is equal to 0.
An OPS computer host capable of automatically switching display output comprises a CPU integrated with an integrated display card, an independent display card, a switching circuit and a display output interface; the CPU is connected with the switching circuit through a DDI interface, is connected with the independent display card through an MXM interface supporting a PCIE x16 bus protocol, is electrically connected with the switching circuit, and is connected with the display output interface; and the CPU outputs a control command to the switching circuit, and controls the switching circuit to switch the independent display card or the integrated display card to output the control command to the display output interface.
As the OPS computer host capable of automatically switching display output, which is preferred by the invention, the switching circuit is composed of a TS3DV642 chip and peripheral components thereof.
As the preferred OPS computer host of an automatic switching display output of the invention, the SCL pin and SDA pin of the TS3DV642 chip are respectively connected with the OPS1_ I2C _ CK pin and OPS1_ I2C _ DA pin of the CPU through a capacitor C505 and a capacitor C506, the SCL pin of the TS3DV642 chip and the common end of the capacitor C505 are grounded through a resistor R209, and the SDA pin of the TS3DV642 chip and the common end of the capacitor C506 are connected with the power supply through a resistor R206.
As the OPS computer host capable of automatically switching display output, which is preferred by the invention, the independent display card is an MXM3.0 display card.
The invention has the beneficial effects that: both can follow CPU integrated display card output, also can follow the output of external independent display card, can switch to independent display card output automatically after possessing independent display card, need not artificial intervention, satisfy the market breach.
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, and 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 these drawings without creative efforts.
FIG. 1 is a flow chart of a method for automatically switching display output according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of an OPS host computer capable of automatically switching display output according to the present invention;
fig. 3 is a circuit diagram of a switching circuit.
In the figure, 1-CPU; 2-independent display card; 3-a switching circuit; 4-display output interface.
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.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, the present invention provides a method for automatically switching display output, which is implemented based on a control motherboard, a switching circuit 3 and a display output interface 4, wherein the control motherboard includes a CPU1 integrated with an integrated graphics card and an independent graphics card 2 slot, the switching circuit 3 is electrically connected to the control motherboard and the display output interface 4, and the method specifically includes the following steps:
s1, the CPU1 detects whether the MXM display card is inserted into the independent display card 2 slot, and outputs a corresponding numerical value to the switching circuit 3 according to the detection result;
and S2, the switching circuit 3 sets a corresponding GPIO interface according to the received numerical value, and automatically switches the corresponding display card to output to the display output interface 4.
As a preferred method for automatically switching display output according to the present invention, in step S1, the CPU1 and the switching circuit 3 transmit the detection result through the pin SEL1 and the pin SEL2, and if the CPU1 detects that the MXM graphics card is inserted into the slot of the independent graphics card 2, the assignment pin SEL1 is 1, the pin SEL2 is 0, otherwise, the assignment pin SEL1 is 1, and the pin SEL2 is 1.
As a preferred method for automatically switching display output according to the present invention, in step S1, the CPU1 and the switching circuit 3 transmit the detection result through the pin SEL1 and the pin SEL2, and if the CPU1 detects that the MXM graphics card is inserted into the slot of the independent graphics card 2, the assignment pin SEL1 is 1, the pin SEL2 is 1, otherwise, the assignment pin SEL1 is 1, and the pin SEL2 is 0.
As a preferred method for automatically switching display output according to the present invention, in step S1, the CPU1 and the switching circuit 3 transmit the detection result through the pin SEL1 and the pin SEL2, and the pin SEL1 and the pin SEL2 respectively correspond to the integrated graphics card and the MXM graphics card, if the CPU1 detects that the MXM graphics card is inserted into the slot of the independent graphics card 2, and if the switching circuit 3 is controlled to switch to the MXM graphics card output, the assignment pin SEL1 is 0, and the pin SEL2 is 1; if the control switching circuit 3 switches to the integrated graphics card output, the assignment pin SEL1 is 1, and the pin SEL2 is 0.
As shown in fig. 2 and fig. 3, the present invention further provides an OPS computer host capable of automatically switching display output, which includes a CPU1 integrated with an integrated graphics card, an independent graphics card 2, a switching circuit 3 and a display output interface 4; the CPU1 is connected with the switching circuit 3 through a DDI interface, is connected with the independent display card 2 through an MXM interface supporting a PCIE x16 bus protocol, the independent display card 2 is electrically connected with the switching circuit 3, and the switching circuit 3 is connected with the display output interface 4; the CPU1 outputs a control command to the switching circuit 3, and controls the switching circuit 3 to switch the independent display card 2 or the integrated display card to output the control command to the display output interface 4.
As the OPS host computer capable of automatically switching display output, which is preferred by the invention, the switching circuit 3 is composed of a TS3DV642 chip and peripheral components thereof. Specifically, the SCL pin and the SDA pin of the TS3DV642 chip are connected to the OPS1_ I2C _ CK pin and the OPS1_ I2C _ DA pin of the CPU1 through the capacitor C505 and the capacitor C506, respectively, the common terminal of the SCL pin and the capacitor C505 of the TS3DV642 chip is grounded through the resistor R209, and the SDA pin of the TS3DV642 chip and the common terminal of the capacitor C506 are connected to the power supply through the resistor R206. The VCC pin of the TS3DV642 chip is connected with a power supply, and the EN pin of the TS3DV642 chip is connected with the power supply through a resistor R205; the TS3DV642 chip comprises a group of D0+ pin, a group of D0-pin, a group of D1+ pin and a group of D1-pin, and a group of D2+ pin, a group of D2-pin, a group of D3+ pin and a group of D3-pin, and the group of D2+ pin, the group of D2-pin, the group of D3+ pin and the group of D3-pin receive the input of the independent. The HPD pin of the TS3DV642 chip is connected with the OPS _ HPD pin through a resistor R610; the CEC pin of the TS3DV642 chip is connected to the OPS _ CEC pin via a resistor R582. The SEL1 and SEL2 pins of the TS3DV642 chip are respectively connected with the CPU1, the CPU1 informs the TS3DV642 chip whether an independent video card 2 is inserted or not through the two pins, and the TS3DV642 chip can be controlled to switch different video card outputs through the two pins. The pins SCL _ A, SDA _ A, SCL _ B and SDA _ B of the TS3DV642 chip are connected to the pins DDI2_ AUX _ DP, DDI2_ AUX _ DN, MXMA _ DDC _ CLK and MXMA _ DDC _ DATA of the display output interface 4 via the capacitors C523-C526, respectively. The pin D0+ A, the pin D0-A, the pin D1+ A, the pin D1-A, the pin D2+ A, the pin D2-A, the pin D3+ A and the pin D3-A of the TS3DV642 chip are respectively connected with a pin DDI2_ TX0_ DP, a pin DDI2_ TX0_ DN, a pin DDI2_ 1_ DP, a pin DDI2_ TX1_ DN, a pin DDI2_ TX2_ DP, a pin DDI2_ TX2_ DN, a pin DDI2_ CLK _ DP and a pin DDI2_ CLK _ DN of the display output interface 4 through capacitors C507-C522, so that the output of the integrated display card is realized. The pins D0+ B, D0-B, D1+ B, D1-B, D2+ B, D2-B, D3+ B and D3-B of the TS3DV642 chip are respectively connected with the pins MXMA _ TX0_ DP, MXMA _ TX0_ DN, MXMA _ TX1_ DP, MXMA _ TX1_ DN, MXMA _ TX2_ DP, MXMA _ TX2_ DN, MXMA _ CLK _ DP and MXMA _ CLK _ DN of the display output interface 4 through capacitors C507-C522, so that the output of the independent display card 2 is realized. The HPD _ B pin of the TS3DV642 chip is connected to the MXMA _ HPD pin of the display output interface 4 via a resistor R606, the HPD _ a pin of the TS3DV642 chip is connected to the HDMI _ C _ HPD pin of the display output interface 4 via a resistor R607, and the CEC _ B pin of the TS3DV642 chip is connected to the MXM _ CEC pin of the display output interface 4 via a resistor R581.
As an OPS computer host which is preferably used for automatically switching display output, the independent display card 2 is an MXM3.0 display card.
The invention has the beneficial effects that: both can follow the integrated display card output of CPU1, also can follow the output of external independent display card 2, can switch to independent display card 2 output automatically after possessing independent display card 2, need not artificial intervention, satisfy the market breach.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a method for automatic switching display output, realizes based on control mainboard, switching circuit and display output interface, the control mainboard includes integrated display card's CPU and independent display card slot, switching circuit respectively with control mainboard and display output interface electric connection, its characterized in that specifically includes following step:
s1, the CPU detects whether the independent graphics card slot is inserted with the MXM graphics card, and outputs a corresponding numerical value to the switching circuit according to the detection result;
and S2, the switching circuit sets a corresponding GPIO interface according to the received numerical value, and automatically switches the corresponding display card to output to the display output interface.
2. The method as claimed in claim 1, wherein in step S1, the CPU and the switching circuit transmit the detection result through a pin SEL1 and a pin SEL2, if the CPU detects that the MXM graphics card is inserted into the stand-alone graphics card slot, the pin SEL1 is set to 1, the pin SEL2 is set to 0, otherwise, the pin SEL1 is set to 1, and the pin SEL2 is set to 1.
3. The method as claimed in claim 1, wherein in step S1, the CPU and the switching circuit transmit the detection result through a pin SEL1 and a pin SEL2, if the CPU detects that the MXM graphics card is inserted into the stand-alone graphics card slot, the pin SEL1 is set to 1, the pin SEL2 is set to 1, otherwise, the pin SEL1 is set to 1, and the pin SEL2 is set to 0.
4. The method as claimed in claim 1, wherein in step S1, the CPU and the switching circuit transmit the detection result through a pin SEL1 and a pin SEL2, and the pin SEL1 and the pin SEL2 correspond to the integrated graphics card and the MXM graphics card, respectively, if the CPU detects that the MXM graphics card is inserted into the independent graphics card slot, and if the switching circuit is controlled to switch to the MXM graphics card output, the assignment pin SEL1 is 0 and the pin SEL2 is 1; if the switching circuit is controlled to be switched to the output of the integrated display card, the assignment pin SEL1 is equal to 1, and the pin SEL2 is equal to 0.
5. An OPS computer host capable of automatically switching display output is characterized by comprising a CPU integrated with an integrated display card, an independent display card, a switching circuit and a display output interface; the CPU is connected with the switching circuit through a DDI interface, is connected with the independent display card through an MXM interface supporting a PCIE x16 bus protocol, is electrically connected with the switching circuit, and is connected with the display output interface; and the CPU outputs a control command to the switching circuit, and controls the switching circuit to switch the independent display card or the integrated display card to output the control command to the display output interface.
6. The OPS host computer capable of automatically switching display output according to claim 5, wherein the switching circuit is composed of a TS3DV642 chip and peripheral components thereof.
7. The OPS computer host of claim 6 wherein the SCL pin and SDA pin of the TS3DV642 chip are connected to the OPS1_ I2C _ CK pin and OPS1_ I2C _ DA pin of the CPU through the capacitor C505 and the capacitor C506, respectively, the common terminal of the SCL pin of the TS3DV642 chip and the capacitor C505 is grounded through a resistor R209, and the SDA pin of the TS3DV642 chip and the common terminal of the capacitor C506 are connected to the power supply through a resistor R206.
8. The OPS host computer capable of automatically switching display output according to claim 5, wherein the independent graphics card is MXM3.0 graphics card.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911237185.7A CN111104352A (en) | 2019-12-05 | 2019-12-05 | Method for automatically switching display output and OPS computer host |
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| CN201911237185.7A CN111104352A (en) | 2019-12-05 | 2019-12-05 | Method for automatically switching display output and OPS computer host |
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Cited By (1)
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| CN114326971A (en) * | 2021-12-28 | 2022-04-12 | 维沃移动通信有限公司 | Electronic device, control method, control apparatus, and readable storage medium |
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Application publication date: 20200505 |