CN2313243Y - Keyboard input process for domestic multi-media system - Google Patents

Abstract

The utility model provides a domestic multiple media system keyboard input processing device and is composed of an integrated block micro processing device (2), an infrared receiving device (6), a surface plate pressing key scanning device (3) and an analogue switch (7). The domestic multiple media system keyboard input processing device respectively through the infrared receiving device (6) is corresponding to a remote controlling device (8) or a lineless keyboard and a mouse. The surface plate pressing key scanning device (3) is connected with a surface plate pressing key (5) and a fluorescent displaying screen VFD (4). The analogue switch (7) is connected with a line keyboard connecting port (10), a line mouse connecting port (11) and a main plate. The domestic multiple media system keyboard input processing device unites three different input pressing key values and mouse values into one keyboard code and mouse code and passes the keyboard code and mouse code to the corresponding input port of the main plate according to the PS2 protocol. The domestic multiple media system keyboard input processing device is used for the product of the computer and domestic appliance integration.

Description

Family expenses multimedia system keyboard input processor

The utility model relates to a kind of computer keyboard input processing equipment, particularly relates to a kind of family expenses multimedia system keyboard input processor.

The input equipment of general computing machine is a keyboard, mouse or touch-screen, the operator needs at the main frame line operate that advances, household electrical appliances (sound, look product) generally be to operate with button on the front panel or the button on the telepilot, along with the appearance of (containing mouse) of computer radio keyboard, computing machine is also the same with household electrical appliances can be a long way off by Wireless Keyboard (containing mouse) straighforward operation main frame, and the input equipment of household electrical appliances multimedia system (HMS) adopts Wireless Keyboard (containing mouse) and panel button and telepilot, the latter mainly operates the household electrical appliances function, and HMS also can select for use the mouse of wired keyboard to operate.But the receiver that receiver that the HMS Wireless Keyboard is used and telepilot are used is two independent device, and the Wireless Keyboard of general outsourcing (containing mouse) receiver need be placed on by the main frame, links to each other with main frame by lead; The receiver that telepilot is used generally all is installed in the main frame, receives control signal from telepilot and panel button by special interface and resident software.Receiver of remote-control sytem has been arranged, and the Wireless Keyboard receiver has shown repetition, has increased cost undoubtedly.

The purpose of this utility model is to provide a kind of integrated design that can improve family expenses HMS system, realize the unification of panel button, remote controller key and Wireless Keyboard and three kinds of key value of mouse, reduce the programming amount of resident software and application software, Wireless Keyboard receiver and wired keyboard receiver are integrated, avoid the family expenses multimedia system keyboard input processor of repetition.

The utility model family expenses multimedia system keyboard input processor is achieved in that it is made of integrated package microprocessor (2), infrared remote receiver (6), panel button scanner (3) and analog switch (7).Infrared remote receiver (6), panel button scanner (3), analog switch (7) are connected with microprocessor (2) respectively, and corresponding by infrared remote receiver (6) and telepilot (8) or Wireless Keyboard and mouse (9), be connected with fluorescent display screen VFD (4) with panel button (5) by panel button scanner (3); By analog switch (7) and wired keyboard interface (10) and wire mouse interface (11), and mainboard (12) connects.Its annexation is that infrared remote receiver (6) output termination microprocessor interrupts the input port outward; Panel is pressed bar scanner (3) key scan input termination panel button (5), output terminal is connected with the strobe pulse output terminal with microprocessor (2) data output end, output terminal of clock, panel is pressed the section drive output of bar scanner (3) and the corresponding input end of position output termination VFD (4), and its data output connects microprocessor (2) data input pin; The wired keyboard input end of analog switch (7) and wire mouse input end are connected to line keyboard interface (10) output terminal and wire mouse interface (11) output terminal respectively, two input pins of analog switch (7) connect microprocessor (2) keyboard clock and mouse output terminal of clock, two other I/O pin connects the keyboard data and the mouse data output/input end of microprocessor (2), the signal input part of analog switch (7) connects the control signal pin of microprocessor (2), and two output pins of analog switch (7) connect mainboard (12) keyboard clock and mouse clock input interface, two other I/O pin of analog switch (7) connects the keyboard data and the mouse data output/input interface of mainboard respectively.

The advantage of the utility model family expenses multimedia system keyboard input processor has been to embody the integrated design thought of HMS, can be with three kinds with not importing key value and 11 kind of keypad code of mouse primary system and mouse sign indicating number, pass to corresponding input port on the mainboard by the PS2 agreement then, make the HMS control section more easy, unified, reduce the programming amount of resident software and application software, reduce cost.

Describe the utility model embodiment in detail below in conjunction with accompanying drawing.

Figure l: the utility model circuit block diagram

Fig. 2: the utility model circuit connection diagram

It is made of the utility model family expenses multimedia system keyboard input processor integrated package microprocessor (2), infrared remote receiver (6), panel button scanner (3) and analog switch (7).Infrared remote receiver (6), panel button scanner (3), analog switch (7) are connected with microprocessor (2) respectively, and corresponding by infrared remote receiver (6) and telepilot (8) or Wireless Keyboard and mouse (9), be connected with fluorescent display screen VFD (4) with panel button (5) by panel button scanner (3); By analog switch (7) and wired keyboard interface (10) and wire mouse interface (1l), and mainboard (12) connects.Wherein, (3) are μ PD163ll, and (2) are 8052 single-chip microcomputers that contain 4KROM, and (7) are CD4551B.Between annexation be (6) output termination 8052 singlechip interruption input pin INT0; μ PD16311 key scan input pin K1～K4 connects (5) key-press matrix, section drives output pin P1～P11 and position driving output pin G1～G9 meets VFD (4), and is connected with 8052 single-chip microcomputer P1.2～P1.5 with DOL Data Output Line DOUT by data input signal line DIN, clock input signal line CLK, strobe signal incoming line STB; Wired keyboard input pin Z1, Y1 and wire mouse input pin W1, the X1 of CD4551B connect (10) and (11) respectively, input pin Z0/Y0/X0/W0 meets 8052 monolithics mouse data/mouse clock/keyboard data/keyboard clock output pin P2.1～P2.4, signal input pin CTRL meets 8052 Single-chip Controlling signal pins P2.0, and output pin W/X/Y/Z connects (12) mouse interface and keyboard interface; The RXD of 8052 single-chip microcomputers connects (12) serial port.

The principle of work of the utility model family expenses multimedia system keyboard input processor is, 8052 pass to VFD chip for driving μ PD16311 by DIN, CLK and STB with control command and display message, and chip directly drives the VFD information that displays the play by G1～G9, P1～P11; Read panel button (5) state by K1～K4,8052 send read key commands after, by DOUT state of panel keys is passed to 8052.(6) from infrared remote-controlled signal, detect coded signal and pass to 8052 INT0 mouth from telepilot (8) or Wireless Keyboard and mouse (9).8052 regularly read the state of panel keys value that μ PD16311 scanning is obtained, and also receive the key value of (8) and (9) by INTO, and three kinds of key value are carried out strong value code process, make the three unified; By P2.0 is low level, control CD4551B, make W/X/Y/Z respectively with W0/X0/Y0/Z0 (P2.1～P2.4) be communicated with, to unify strong sign indicating number or mouse code output to mainboard (12) respectively by the PS2 agreement keyboard mouth or mouse mouth through P2.1～P2.4, wherein, 8052 P2.1 is as strong code data transfer clock line KCLK0, and P2.2 is as strong code data line KDATA0, P2.3 is as mouse data transfer clock line MCLK0, and P2.4 is as mouse data transmission line MDATD0; After data transmission finished, recovery P2.0 was a high level, and control CD4551B makes the keyboard mouth of (12) link to each other with wire mouse with wired keyboard respectively with the mouse mouth.More than the overall process of every control control by the control program that writes by 8052, these programs all are solidificated among 8052 the ROM with the form of machine code.

Claims (2)

1, a kind of family expenses multimedia system keyboard input processor, it is characterized in that constituting by integrated package microprocessor (2), infrared remote receiver (6), panel button scanner (3) and analog switch (7), infrared remote receiver (6), panel button scanner (3), analog switch (7) are connected with microprocessor (2) respectively, and corresponding by infrared remote receiver (6) and telepilot (8) or Wireless Keyboard and mouse (9), be connected with fluorescent display screen VFD (4) with panel button (5) by panel button scanner (3); By analog switch (7) and wired keyboard interface (10) and wire mouse interface (11), and mainboard (12) connects.

2, family expenses multimedia system keyboard input processor as claimed in claim 1 is characterized in that the outer middle fracture end of infrared remote receiver (6) output termination microprocessor; Panel connects panel button (5) output terminal and microprocessor (2) data output end, output terminal of clock and strobe pulse output terminal respectively by bar scanner (3), the section drive output of panel button scanner (3) and position output termination VFD (4) input end, its data output end connects microprocessor (2) data input pin; The wired keyboard input end of analog switch (7) and wire mouse input end are connected to line keyboard interface (10) output terminal and wire mouse interface (11) output terminal respectively, two input pins of analog switch (7) connect microprocessor (2) keyboard clock and mouse output terminal of clock, two other I/O pin connects the keyboard data and the mouse data output/input end of microprocessor (2), the signal input part of analog switch (7) connects the control signal pin of microprocessor (2), and two output pins of analog switch (7) connect mainboard (12) keyboard clock and mouse clock input interface, two other I/O pin of analog switch (7) connects the keyboard data and the mouse data output/input interface of mainboard respectively.

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