CN2583903Y

CN2583903Y - Network TV set

Info

Publication number: CN2583903Y
Application number: CN 02260561
Authority: CN
Inventors: 侯志远; 刘福中; 夏润刚; 陆纯奇; 张琼琼
Original assignee: SVA INFORMATION INDUSTRY Co Ltd
Current assignee: SVA INFORMATION INDUSTRY Co Ltd
Priority date: 2002-10-09
Filing date: 2002-10-09
Publication date: 2003-10-29
Anticipated expiration: 2012-10-09

Abstract

The utility model discloses a network TV which comprises a digital TV circuit, wherein the digital TV circuit is composed of a central processing unit (6), a video signal processing output module (3), an audio signal processing output module (2), a clock oscillator (4), a signal receiving module (1), a state character display circuit (9) and a control device (8). An interface decoding unit (5) and a modulation and demodulation unit (7) are also arranged in the network TV, and the interface decoding unit (5) is respectively connected with the central processing unit (6) and the modulation and demodulation unit (7). The network TV of the utility model can conveniently and remotely monitor and control other household apparatus. The utility model has the advantages of simple and visual operation, and is suitable for various people to use. Besides, the utility model has no need of distributing lines again, and the utility model not only can save the cost, but also can not destroy the indoor arrangement.

Description

Web TV

Technical field

The utility model belongs to a kind of television set, especially a kind of remote controlled Web TV.

Technical background

Current, high speed development along with computer and Internet technology, many variations are also taking place in people's living awareness and idea, people become and more and more be unable to do without network, also constantly pursuing high-quality life, so intelligentized life style is quietly risen, and the notion of intelligent family also produces thus.So-called intelligent family utilizes present network technology that all household electrical appliance are connected on the network, enables the work of mutual harmonious orderly ground, thereby realizes the automation and intellectuality of household internal electrical equipment, makes convenient comfortable that people live.

The interconnected control of household electrical appliance at present has several forms, the one, relying on the computer is the LAN at center, by computer other household electrical appliance are carried out far-end control, its the shortcoming person of being to use need watch display screen frequently attentively could guarantee carrying out smoothly of operation, for now computer be not home entertaining the core household electrical appliances (generally speaking, for most of families, the core household electrical appliances should be television sets), therefore people can not often watch display screen attentively, this will have influence on the control precision to other household electrical appliances, and for some auld people, using a computer is a no small obstacle, so this mode is unfavorable for the elderly's use; Be exactly that this mode need be carried out rewiring to existing household electrical appliance circuit in addition, not only destroyed existing layout within doors but also increased unnecessary expense; The 2nd, by an integrated remote control other household electrical appliance to be controlled, its defective is not directly perceived, mode of operation is single.

Summary of the invention

The utility model technical issues that need to address provide a kind of Web TV, use this Web TV function very easily other household electrical appliance to be carried out the far-end Supervised Control, simple and direct-viewing operation, being suitable for all kinds of crowds uses, and need not rewiring, not only save cost but also do not destroy layout within doors.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of Web TV, include the digital to television machine circuit, this digital to television machine circuit is handled output module, Audio Signal Processing output module, clock oscillator, signal receiving module, status word display circuit and control device by CPU, vision signal and is constituted, this Web TV also is built-in with an interface decoding unit and a modem module, and described interface decoding unit is connecting CPU and modem module respectively.

This modem module includes the serial port JP of neuron chip, power line transceiver, memory, reset circuit and the mutual communication of interface decoding unit, and wherein neuron chip is connecting power line transceiver, memory and serial port JP respectively; Or described modem module can adopt radio modem; Described neuron chip adopts the TMPN3150 chip, and power line transceiver is the power line transceiver of PLT-22 type, and memory is the AT29C512 flash memory of 32K, and reset circuit adopts the MC33064D chip to realize automatically reseting; Described status word display circuit is interconnected to constitute by display position memory, display-memory, size memory, display control circuit, black surround control circuit, shift register, character generator, word selection address generator, vertical display position control circuit and horizontal display position control circuit; Described interface decoding unit include the communication coding chip, with the port x 1 of the mutual communication of modem module and the port x 2 that is connected with CPU.

Owing to taked above-mentioned scheme, the advantage that the utility model is compared with prior art had is:

Because the utility model Web TV is that television set is as display centre with the core electrical equipment in the family, and utilize power line that other household electrical appliances are connected into a network, or become a network by wireless connections, realization is carried out the far-end Supervised Control to other household electrical appliance, simple and direct-viewing operation, be suitable for all kinds of crowds and use, and need not rewiring, not only save cost but also do not destroy layout within doors.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is the structured flowchart of the utility model Web TV;

Fig. 2 is the circuit connection diagram of the modem module of the utility model Web TV;

Fig. 3 is the circuit connection diagram of the interface decoding unit of the utility model Web TV;

Fig. 4 is the structured flowchart of the status word display circuit of the utility model Web TV;

Fig. 5 is the connection diagram of the utility model Web TV and other household electrical appliance networking.

Embodiment

As shown in Figure 1, the utility model Web TV is by common digital to television machine circuit, being built in the interface decoding unit 5 of television set and modem module 7 interconnects and forms, this digital to television machine circuit is by CPU 6, vision signal is handled output module 3, Audio Signal Processing output module 2, clock oscillator 4, signal receiving module 1, status word display circuit 9 and control device 8 constitute, vision signal is handled output module 3 by the Digital Image Processing unit, the digital synchronous treatment circuit, deflection circuit, three looks (RGB) exciting circuit and picture tube are formed, Audio Signal Processing output module 2 is made up of digital audio processing unit and loud speaker, signal receiving module is then by tuner, tuner interface and image, put formation in the sound accompaniment, control device can be television set keyboard or remote controller, and also both have concurrently.

Described interface decoding unit 5 is connecting CPU 6 and modem module 7 respectively, as shown in Figure 2, this modem module 7 includes neuron chip 71, power line transceiver 72, memory 73, the serial port JP74 of reset circuit 74 and the mutual communication of interface decoding unit, wherein said neuron chip 71 adopts the TMPN3150 chip, power line transceiver 72 is the power line transceiver of PLT-22 type, memory 73 is AT29C512 flash memories of 32K, reset circuit 74 adopts the MC33064D chip to realize automatically reseting, and neuron chip 71 is connecting power line transceiver 72 respectively, memory 73 and serial port JP74.

In the TMPN3150 chip, A0～A15 is an address wire, and D0～D7 is a data wire, and IO0～IO10 is 11 tunnel application IO mouths, and CP0～CP4 is 5 road communication buses, meets CP0～CP4 (wherein CP3 is unsettled) of transceiver PLT-22 respectively.

Memory is selected the F1ash flash memory AT29C512 of 32K for use, its A0～A14 A0～A14 of CPU respectively links to each other, the CE pin links to each other with the A15 of CPU as sheet choosing, the R/W of CPU and E by a not gate with two or be connected with WE with the OE of flash memory, read and write and output enable with realization.

Present embodiment has used IO8, IO10, the IO2,103 of TMPN3150 chip as serial input and output and handshake, JP74 is a serial port, connect with interface decoding unit 5, it should be noted that, need add photoelectric coupled device when connecting isolates, if but modem module power supply and coupling unit adopt transformer isolation, can directly connect.

The power supply that present embodiment adopts is non-isolation method, the power input of modem module directly links to each other with the power input of television set, the signal of coming on the power line is connected to the RXIN (signal input) and TXOUT (signal output) pin of power line transceiver by coupling unit circuit (C3, C7, C8, L4, D1), realizes the transmission of signal on the power line.

The used power line transceiver PLT-22 of present embodiment is commercially available product, adopt spread spectrum and network impedance adaptive technique, carry out high reliability communication in synchronous full-duplex communication mode, data-signal adopts two-phase PSK (BPSK) method to be modulated onto on the 110k-140kHZ and two frequency ranges of 70k-95kHZ of power line, the former is a primary band, the latter is standby frequency range, when the data of primary band because noise is destroyed, transceiver can use the data of standby frequency range, guarantee reliability of data transmission, reduce because data corruption is retransmitted number of times, signal level 3.5v and the 7v peak value of being chosen as able to programme.Neuron chip is with the network communication interface connection communication of power line transceiver by CP0～CP4, wherein CP0, CP1 are responsible for transceive data, CP2 is an enable signal, CP4 is collision detection, CP3 in the present embodiment need not, the crystal oscillator of 10MHZ is responsible for providing the stable clock frequency to transceiver.

As shown in Figure 3, described interface decoding unit 5 includes communication coding chip 51, port x 1_52 and the port x 2_53 that is connected with CPU with modem module 7 mutual communications, this communication coding chip 51 adopts the 87LPC762 cake core, its the 3rd, 11,12,13 pin are responsible for the serial communication with the power line modem module, wherein the 3rd pin is to send request RTS, the 11st pin is serial input RXD, the 12nd pin is serial output TXD, the 13rd pin is to send response CTS, the 1st, 8,9,10,14,16～20 pins pin that connects of heel end mouth X2 respectively link to each other, realization is to the control of television set and the collection of corresponding state signal, the 6th, 7 bipods meet the crystal oscillator of 11.059MHZ, C2, C3, C4, C5, C6, C7 plays decoupling and filter action.

As shown in Figure 4, described status word display circuit 9 is interconnected to constitute by display position memory 98, display-memory 97, size memory 96, display control circuit 94, black surround control circuit 95, shift register 93, character generator 92, word selection address generator 91, vertical display position control circuit 99 and horizontal display position control circuit 90.

Position control circuit comprises vertical display position control circuit 99 and horizontal display position control circuit 90, it is the position appears in the decision character on screen control circuit, under the control of display position memory 98, produce strobe pulse with row, field synchronization, the position that line frequency strobe pulse decision character occurs on horizontal scanning line, the decision of field frequency strobe pulse line frequency strobe pulse, i.e. character position on the scene occur at which row.Display position memory 98 is subjected to the control of CPU, and the ASCII character of character display leaves in the display-memory 97 on the screen, and the address wire of display-memory 97 is by central processing unit controls

Character generator 92 is used for storing needs the type matrix of character display or figure table, as long as choose the address of certain character can take out the type matrix of this character for showing.

Word selection address generator 91 produces the address by row pointwise order code fetch under the control of display-memory 97 and size memory 96; Display-memory 97 has determined to reach which character or figure from which memory block of character generator 92 and pattern generator; Reading speed when size memory 96 has determined to get character or figure, i.e. the shared row of character or figure, vertical interval, thus determined the character on the screen and the size of figure

The polarity of display control circuit 94 decision characters or figure pulse and show the length of time at the bottom of character or figure can being become the green word of white background or adding black surround by 95 controls of black surround control circuit, or adds black surround, also can change the demonstration time of character or figure.

As shown in Figure 5, before controlling, at first the Web TV networking to be about to itself and other household electrical appliance and bind together, pass through power line communication between them, the control signal of external network is done data transaction by gateway, and gateway can pass through serial communication with between the adapter.Easily can carry out the Long-distance Control of household electrical appliances and the mutual communication between the household electrical appliances, certainly the household internal net also can adopt wireless or other mode communication, different is exactly household electrical appliance inside embedded modulator-demodulator for being fit to the modulator-demodulator of respective transmissions medium, promptly described modem module 7 can adopt radio modem.

The operation principle of the utility model Web TV with use is: arrange net if adopt power line to be connected, the household electrical appliance of household internal are through after the networking, just constituted the household internal network of a mutual real-time communication, each household electrical appliance is exactly a node in this network, just pass through the complete reciprocity communication of modulator-demodulator between node and the node, when the state of a node changes, it just passes to this state change value the modem module of television set by its modulator-demodulator, transmitting terminal is loaded into control signal or status signal on the alternating current in the mode that voltage injects, the modem module of Web TV receives behind the signal by after himself coupling circuit and the power line transceiver modulation and through signal compensation, and then pass to neuron chip and handle, modem module and interface decoding unit are with the serial mode both-way communication, the interface decoding unit is translated into the discernible data of television set CPU with signal, thereby realize control and screen display to television set, and to the Long-distance Control of television set and the interlock of television set and other household electrical appliances, the status signal of same television set is loaded on the power line in the mode that voltage injects by its power line modem module, passes to other equipment.

When the status signal of other household electrical appliances arrived our Web TV, our Web TV obtained status command after this status signal is deciphered by the television set CPU, carries out corresponding character and icon display.The control signal of being come in by external network is also passed to the television set CPU in the same way equally, and controlled instruction after deciphering is carried out control corresponding to television set.

The corresponding one section control program of each control command and status command writes in the program memory ROM of television set, selects with address code.After CPU identifies an instruction, can find this to instruct the first address of pairing control program, just begin to carry out this section program then from this first address, its control command is as broad as long with the ordinary numbers television set, different is that the pairing control program of status command can drive character generator, carry out the character or the icon display of screen then by corresponding interface circuits, represent the state that other household electrical appliances are present.

The utility model is to utilize the inner modem module that embeds to be connected networking with other household electrical appliances, and this modem module can be the modulator-demodulator or the radio modem of power carrier, can also can simply control with the state of other coupled household electrical appliance of the form demonstration of small icon, the Web TV chance is with the real-time state information of informing other electrical equipment of icon character display format, remind the user what to have been done, allow them needn't miss excellent TV programme, also needn't worry other electrical equipment just at work in the room, our Web TV can also cooperate camera to be applied in addition needs a lot of occasions of Long-distance Control or supervision, because it need not connect up and the networking convenience, and can pass through the safe and reliable anywhere or anytime monitoring in the Internet.

Claims

1, a kind of Web TV, include the digital to television machine circuit, this digital to television machine circuit is handled output module (3), Audio Signal Processing output module (2), clock oscillator (4), signal receiving module (1), status word display circuit (9) and control device (8) by CPU (6), vision signal and is constituted, it is characterized in that: this Web TV also is built-in with an interface decoding unit (5) and modem module (7), and described interface decoding unit (5) is connecting CPU (6) and modem module (7) respectively;

2, Web TV according to claim 1, it is characterized in that: described modem module (7) includes the serial port JP (74) of neuron chip (71), power line transceiver (72), memory (73), reset circuit (74) and the mutual communication of interface decoding unit, and wherein neuron chip (71) is connecting power line transceiver (72), memory (73) and serial port JP (74) respectively.

3, Web TV according to claim 1 is characterized in that: described modem module (7) can adopt radio modem.

4, Web TV according to claim 2, it is characterized in that: described neuron chip (71) adopts the TMPN3150 chip, power line transceiver (72) is the power line transceiver of PLT-22 type, memory (73) is the AT29C512 flash memory of 32K, and reset circuit (74) adopts the MC33064D chip to realize automatically reseting.

5, according to claim 2 or 3 described Web TVs, it is characterized in that: described status word display circuit (9) is interconnected to constitute by display position memory (98), display-memory (97), size memory (96), display control circuit (94), black surround control circuit (95), shift register (93), character generator (92), word selection address generator (91), vertical display position control circuit (99) and horizontal display position control circuit (90).

6, according to claim 2 or 3 described Web TVs, it is characterized in that: described interface decoding unit (5) include communication coding chip (51), with modem module (7) the mutually port x 1 (52) and the port x 2 (53) that is connected with CPU of communication.