CN2459694Y

CN2459694Y - USB based multi-function remote controller

Info

Publication number: CN2459694Y
Application number: CN 00240148
Authority: CN
Inventors: 李孟川
Original assignee: Shenzhen Haier Information and Technology Co Ltd
Current assignee: Shenzhen Haier Information and Technology Co Ltd
Priority date: 2000-11-17
Filing date: 2000-11-17
Publication date: 2001-11-14
Anticipated expiration: 2010-11-17

Abstract

The utility model relates to a USB based multi-function remote controller, which comprises a USB hub 10, a USB equipment interface driving circuit 20 connected with the hub in two directions, a USB user interface 30 and a USB output interface 40. An output power supply control terminal of the interface driving circuit 20 is also connected with a power supply input terminal of the USB user interface 30. A control terminal of the USB hub is also connected with a remote input circuit 50 which can remote-control multiple audio and video equipment on the USB interface. One remote controller can 'learn ' to remote-control another equipment to be favorable to use various equipment on one PC computer for a user to realize versatility of the remote controller without mutual interference and share with multiple systems of remote control for appliances.

Description

Multifunction remote-controller based on USB

The utility model relates to telechiric device, particularly the sound of realizing on the PC computer by usb hub, video frequency remote-control device.

In the prior art, realize that on the PC computer sound, video program play have been common operation; Not long ago the standard usb interface of Gong Buing makes sound, video program play equipment realize the function of plug and play again on the PC computer.The particularly use of usb hub, a USB interface can expanding the PC computer are 2-4 or more, promptly can connect a plurality of audio ﹠ video equipments simultaneously and select to use.Even can broadcast a plurality of programs simultaneously.But these equipment all must oneself telepilot of band, can not intersect use, more can not be general.This is under the indivedual telepilot faults or the situation of losing, and corresponding audio ﹠ video equipment just can not be used, for the user makes troubles; Multiple in addition mutual uncurrent telepilot both had been difficult to identification together, also caused waste; Use the also possibility phase mutual interference of two kinds of telepilots simultaneously.

The utility model proposes the telechiric device that a kind of novel multifunctional can " be trained " for overcoming above-mentioned the deficiencies in the prior art part, can carry out infrared remote control to plug and play sound, the video equipment on a plurality of USB interface that connect with usb hub.And can use wherein a kind of telepilot of equipment, and make its distant control function through " Training and Learning " with another equipment, promptly have versatility.This applied environment easily helps the user and use multiple sound, video equipment on same PC computer.

The purpose of this utility model can reach by adopting following technical measures:

A kind of multifunction remote-controller based on USB is adopted in design, comprise usb hub, with the two-way USB device interface driving circuit that is connected of this hub, USB user interface and USB output interface, the out-put supply control end of described interface driving circuit also connects the power input of USB user interface.The control end of especially described usb hub also is connected to remote-controlled input circuit.

The utility model brief description of drawings is as follows:

Fig. 1 is the way circuit schematic diagram of the utility model multifunction remote-controller;

Fig. 2 is the usb hub internal signal flow graph of described multifunction remote-controller;

Fig. 3 is described multifunction remote-controller remote control part software flow block diagram;

Fig. 4 is described multifunction remote-controller telepilot " training " functional software FB(flow block).

Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.

Fig. 1 provides a kind of multifunction remote-controller based on USB, comprise and contain the usb hub 10 that model is W81181AD integrated circuit U2, with the two-way USB device interface driving circuit 20 that is connected of this hub, USB user interface 30 and USB output interface 40, the out-put supply control end of described interface driving circuit 20 also connects the power input of USB user interface 30.The control end of especially described usb hub also is connected to remote-controlled input circuit 50.

In this example, described USB device interface driving circuit 20 contains the integrated circuit U2 that model is A1C1526, and is provided with 2 passages, and each passage connects two USB user interfaces.Four USB mouths after the expansion can supply to connect four sounds, video equipment simultaneously, and can open one or more equipment at any time and use.The USB mouth can allow the equipment plug and play that connects, need not cut off the power supply, and this is a USB technology biggest advantage.

Described remote-controlled input circuit 50 comprises remote control decoding circuit 51, the remote-control receiving circuit 52 that is connected with this decoding circuit again, also has the remote controlled transmitting circuit 53 of auxiliary work.

Described remote-control transmitting and receiving circuit the 52, the 53rd, general infrared type remote-control transmitting and receiving circuit.

Described remote control decoding circuit 51 comprises that model is the integrated remote control decoding sheet U5 of AT89C1051, and it interrupts data output end the 2nd pin DATA that input the 7th pin P1.6 connects remote-control receiving circuit 52; Described integrated remote control

decoding sheet U5

1,2,3, pin is that 13 to 11 pin that P1.0 to P1.2 meets described usb hub U2 respectively are SSTB, SCL and SDA end;

Described remote controlled transmitting circuit 53 comprises that model is the integrated circuit U1 of PT2221, connects by general Infrared Remote-Control Sending circuit.

In the operation, when USB (A) J4 connection device, pass through DM1, it is U2 to W81181AD that DP1 transmits information, after U2 detected equipment, sending gating signal by PWEN1 was U3 to A1C1526, and its O/A mouth is opened, for USB device provides working power, whether U3 is excessive by IN mouth testing electric current, and sends the result to U2 by the F/A mouth, and U2 receives the laggard capable gating of signal and handles, by DM0, DP0 sends to PC with all information.W81181AD is that the U2 internal signal flow direction is seen Fig. 2.

The audio ﹠ video equipment that this device USB (A) J1-J4 mouth is connected can be passed through the supporting telepilot work of this equipment itself, also can implement control by the remote-controlled input circuit 50 that described hub U2 control end is connect.When adopting second kind of remote control mode, general infrared type remote-control receiving circuit 53 receives the infrared signal of remote controlled transmitting circuit 52, be converted into electric signal and amplification, delivering to decoding circuit AT89C1051 is the middle fracture of U5, triggers U5 and enters interrupt handling routine, and the signal of being gone into by these oral instructions is decoded, format conversion, pass through data terminal SSTB then, SDA, SCK realizes and the U2 communication.Again by U2 through DM0, DP0 sends PC to.

It is the reception decoding of the MCU of AT89C1051 as infrared remote control that this device adopts a slice model, not only can finish the remote control of designated equipment by remote control software flow shown in Figure 3, can also be according to " training " of telepilot shown in Figure 4 " training " functional software flow implementation telepilot, be other audio ﹠ video equipment of may command after making common specific domestic electrical equipment remote controller through simple " study ".This MCU sends to usb hub with decoded data by the HID protocol code, becomes a USB peripheral hardware of usb hub to realize this telepilot.This device has been realized the functions such as " trainings " of remote control and telepilot becoming genuine multifunction remote-controller based on usb hub.Also make the telepilot of process " training " become use or general telepilot more; When indivedual telepilots break down, be unlikely to shut-down operation.Simultaneously can also avoid multi-remote-controller shared, also just avoid phase mutual interference possible between the telepilot.

The utility model is with respect to the advantage of prior art, adopts the multifunction remote-controller based on USB, can With the versatility that realizes the audio ﹠ video equipment remote controller and household remote multisystem do not have disturb mutually shared, simultaneously when the USB peripheral hardware long Time is the time spent not, and this system can enter battery saving mode automatically, and when recovering to use the USB peripheral hardware, system can be called out automatically Wake up, to realize more environmental protection and energy saving.

Claims

1, a kind of multifunction remote-controller based on USB, comprise usb hub (10), with the two-way USB device interface driving circuit (20) that is connected of this hub, USB user interface (30) and USB output interface (40), the out-put supply control end of described interface driving circuit (20) also connects the power input of USB user interface (30); It is characterized in that:

The control end of described usb hub also is connected to remote-controlled input circuit (50).

2, according to the described multifunction remote-controller of claim 1, it is characterized in that based on USB:

Described USB device interface driving circuit (20) is provided with 2 passages, and each passage connects two USB user interfaces.

3, according to claim 1 or 2 described multifunction remote-controllers, it is characterized in that based on USB:

The remote-control receiving circuit (52) that described remote-controlled input circuit (50) comprises remote control decoding circuit (51) again, is connected with this decoding circuit, the remote controlled transmitting circuit (53) of auxiliary work in addition.

4, according to the described multifunction remote-controller of claim 3, it is characterized in that based on USB:

Described remote-control transmitting and receiving circuit (52), (53) are general infrared type remote-control transmitting and receiving circuit.

5, according to the described multifunction remote-controller of claim 4, it is characterized in that based on USB:

Described remote control decoding circuit (51) comprises integrated remote control decoding sheet U5, and it interrupts data output end the 2nd pin DATA that input the 7th pin P1.6 connects remote-control receiving circuit (52); Described integrated remote control decoding sheet U5 1,2,3, pin is that 13 to 11 pin that P1.0 to P1.2 meets described usb hub U2 respectively are SSTB, SCL and SDA end;

Described remote controlled transmitting circuit (53) connects by general Infrared Remote-Control Sending circuit.

6, according to the described multifunction remote-controller of claim 5, it is characterized in that based on USB:

Described model of separating chip U5 is AT89C1051; The model of described remote-control transmitting integrated circuit U1 is PT2221.