CN201004632Y

CN201004632Y - Signal transmission circuit using power line to transmit carrier signals

Info

Publication number: CN201004632Y
Application number: CNU2007200009798U
Authority: CN
Inventors: 高熹腾; 容光宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-24
Filing date: 2007-01-24
Publication date: 2008-01-09
Anticipated expiration: 2017-01-24

Abstract

The utility model is a signal transmission circuit which can transmit the signal with the carrier signal, which comprises a signal converting route, a filter circuit, a decoding circuit, a plural signal socket, a coding circuit, a carrier circuit and a signal receiving converting route, which change all electrical wires to the network communication line and the signal transmission circuit of the telephone transmission route. The signal transmission circuit is connected with the common electrical wire, the network signal and the telephone signal are transmitted to the signal transmission circuit by the electrical wire, and then via the transmission signal converting circuit, the AC voltage is converted into the DC voltage, and the network signal and the telephone signal are generated after making the filtering and the decoding, and are transmitted to the outside device by the socket. The signal of the outside device can be disposed by the coding and the carrier, and is converted into the AC electricity with high voltage by using the signal receiving converting circuit, and transmitted by the electrical wire, to reach the convenience of the great increasing use; besides the utility model adds the addition value of the product, improves the competitiveness and the economy.

Description

Can utilize the signal transmission circuit of power line transmission carrier signal

Technical field

The utility model relates to a kind of signal transmission circuit, what be particularly related to is a kind of signal transmission circuit that utilizes power line transmission network or telephone signal, need the inconvenience and the puzzlement of other arranging signal power line to solve existing network or telephone signal, reducing every engineering cost, and promote the electric power elongation socket of the convenience that uses.

Background technology

Along with the internet spreads to the rise in each family, company, public place and digitlization consumer electronics market, it is more and more high with the demand of using conveniences such as communication that network brought, study, amusement to allow every nook and cranny in the family all can connect network; Because the starting point of legacy network design is to allow enterprise or campus do data communication use, these places all can have trained professional to use special software and hardware instrument to set up and safeguard such network system, the construction of network system neither serve as to consider object with family's use.

Common on the market LAN connected mode mainly contains by grid line and wireless network two big classes at present, utilize grid line to connect online, though cost is lower, but need to destroy decoration if want the configuration network line to have in general family, company, the public place, circuit is mixed and disorderly, safeguards problems such as difficult; And utilize the wireless network can be because of factor in the environment for use such as Electromagnetic Interference, intercept, and influence transmission range and quality, though industry has many solutions of proposition to increase excessive antenna as using height at these problems, wireless bridge joint, MIMO etc., but can make and build the cost put and increase many, in the Modern Family, be bound to dispose two kinds of circuits: telephone line and power line, the latter more spreads all over each corner in the family, the power line communication networking is to utilize the original power circuit of family or place to come the transmission network signal, so can solve problems such as Ethernet wiring trouble and wireless network transmissions obstruct.

Because tradition uses twisted-pair feeder or optical fiber the cost that needs the configuration network line to be arranged and may destroy the decoration problem when the Ethernet of transmission medium, and the wireless network that is widely used in recent years have the transmission dead angle with can't the high quality content of multimedia etc. factor, can cause the obstruction of home network in expansion.

Power line home network alliance (Home plug Power line Alliance) is by the alliance that more than 90 tame electronics and computer vendors are formed, and makes the power line home-network protocols and can allow the user can connect power line by the supply socket in the family to carry out communication etc.

Original supply socket outward usually all can the external power supply extended line in the general family, to increase the quantity of supply socket, therefore, if can on power extending line, add power line jack, electric power elongation line function and telephone signal, just can not be used in and purchase the electric power elongation line separately and establish extra telephone wire with drawing, circuitry lines all in the family can have been become grid line entirely and telephone wire uses.

Every shortcoming that this case utility model people is derived in view of the above-mentioned existing signal transmission circuit that can utilize the power line transmission carrier signal, and then the signal transmission circuit that this part can utilize the power line transmission carrier signal is finished in research and development.

Summary of the invention

The purpose of this utility model promptly is, a kind of signal transmission circuit that utilizes the power line transmission carrier signal is provided, and is that applying frequency is cut apart multiplexed principle, with the socket of telephone signal through power line transmission.

Of the present utility model time a purpose is to be, a kind of electric power elongation socket that improves the transmission quality of power line and improve line efficiency is provided.

Another purpose of the present utility model is to be, provides a kind of many roads telephone signal not disturb mutually in a pair of power line transmission simultaneously, realizes the electric power elongation socket of frequency division multiplex.

Another purpose of the present utility model is to be, provides a kind of and transmits telephone signal mutually with high-frequency current, and use the electric power elongation socket of carrier protection transmission signals.

His purpose of the present utility model is to be, a kind of signal transmission circuit that utilizes the power line transmission signal is provided, so that the power line network transmission equipment has the function of supply socket, even has the function of telephone signal transmission, need not to be provided with separately electric power elongation line and telephone wire.

For achieving the above object, the technical solution adopted in the utility model is, a kind of signal transmission circuit that utilizes the power line transmission carrier signal is provided, and includes:

One transmits the conversion of signals circuit, and its input is to be connected power line, transmit the conversion of signals circuit can with the high voltage alternating current be converted to low voltage and direct current;

One filter circuit, it is to connect the output that transmits the conversion of signals circuit, described filter circuit can be filtered the data packet in the electric current, makes it form decodable signal;

One decoding circuit, it is the output that is connected filter circuit, described decoding circuit can make signal become the data that can supply ancillary equipment to read Ethernet signal or the telephone speech signal decoding of TCP/IP;

At least one signal plug after it is connected in parallel on aforementioned decoding circuit, for connecting ancillary equipment, carries out reading and transmitting of data;

One coding circuit, its input are the outputs that is connected signal plug, and coding circuit can be encoded Ethernet data or the telephone voice data of TCP/IP, data are become can power the signal of line of force transmission;

One carrier circuit, it is the output that is connected coding circuit, described carrier circuit can make signal form data packet;

One received signal conversion line, its input then are the outputs that is connected carrier circuit, and the output of received signal conversion line and be connected to power line, and described received signal conversion line can be converted to the direct current of low-voltage high-tension alternating current;

Advantage of the present utility model is, by representing of the utility model aforementioned techniques means, allow the utility model power line network transmission equipment can have the function of supply socket or extended line, even there is telephone signal to pass through the function of power line transmission, and the extended line that need not buy power is separately again established extra telephone wire with drawing, can significantly promote the convenience of its use, increase the surcharge of product simultaneously, and then promote competitiveness and economic benefit.

Description of drawings

Fig. 1 is the assembly schematic diagram of the utility model circuit, in order to its constitutive requirements and relativeness thereof to be described;

Fig. 2 is a signal transmission circuit block schematic diagram of the present utility model;

Fig. 3 is the use reference view that the utility model is used in the electric power elongation line;

Fig. 4 is the use reference view that the utility model is used in wall socket group.

Embodiment

Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.

See also Fig. 1, it is the signal transmission circuit that utilizes the power line transmission carrier signal provided by the utility model, mainly includes: one transmits conversion of signals circuit (Transmit Transformer) 11, one filter circuit (Filter) 12, a decoding circuit (Ethernet encoder) 13, complex signal socket 14, a coding circuit (Ethernet decoder) 15, one carrier circuit (Modulator) 16 and a received signal conversion line (Receive transformer) the 17 signal transmission circuits 1 that constituted.

Described signal transmission circuit 1 is to connect on first power line of establishing as power delivery 21 and second power line 22, and

first power line

21 and 22 on second power line are provided with plural supply socket 43, and each supply socket 43 also is connected with an earth lead 23 jointly, makes it can have the effect of electric power transfer;

And detailed formation of the present utility model, then be as Fig. 1, Fig. 2 and shown in Figure 3, as being serially connected with a switch 41 and an insurance unit 42 on first power line 21 that transmits or second power line 22, switch 41 of the present utility model is to be serially connected on first power line 21 with insurance unit 42, promote opening and closing circuit and to prevent superpotential function, supply socket 43 is then parallel with one another on 22 on first power line 21 and second power line;

Aforementioned again signal transmission circuit 1 is to utilize one first connecting line 31 and one second connecting line, 32 relative first power line 21 and second power lines 22 of being connected, and makes signal transmission circuit 1 present shape in parallel with each supply socket 43.

Wherein, the input of described transmission conversion of signals circuit 11 is insurance unit 42 outputs that are connected first power line 21, it can be converted to low voltage and direct current 5V/3V with the high voltage alternating current 110V/220V of first power line 21 and second power line 22, so that the usefulness of signal transmission circuit 1 power supply and signal transmission to be provided, described transmission conversion of signals circuit 11 also can be the D/A transforming circuit, this can understand technology for haveing the knack of this skill person, but is not in order to restriction;

Filter circuit 12 is to connect the output that transmits conversion of signals circuit 11, and described filter circuit 12 can be filtered the data packet in the electric current, makes it form decodable signal;

Decoding circuit 13 is the outputs that are connected filter circuit 12 again, and described decoding circuit 13 can make signal become the data that can supply ancillary equipment to read Ethernet signal or the telephone speech signal decoding of TCP/IP;

Moreover after signal plug 14 is connected in parallel on aforementioned decoding circuit 13, be RJ45 grid line socket or telephone line socket, for connecting ancillary equipment, carry out reading and transmitting of data;

In addition the input of coding circuit 15 is the outputs that are connected signal plug 14, and coding circuit 15 can be encoded the Ethernet data of TCP/IP or telephone voice data or telephone audio signal, data is become can power the signal of the line of

force

21,22 transmission;

Carrier circuit 16 is the outputs that are connected coding circuit 15 again, described carrier circuit 16 can make signal form data packet, make it can be at power line 21, unlikely loss of when transmission or make a mistake on 22, the principle of its carrier circuit 16 is Ethernet data or the telephone voice data that make several telephone circuits, by repeatedly being modulated into carrier signal, to be modulated to respectively on the different frequency bands, so that

power line

21,22 transmission carrier signal mutually to be provided.When carrier signal is selected each road signal via filter circuit 12, after demodulation is reduced into each road Ethernet data or telephone voice data.Owing to filter circuit 12 each road Ethernet data or telephone voice data are separated by frequency, therefore many roads Ethernet data or telephone voice data can be transmitted on a pair of

power line

21,22 simultaneously and not disturb mutually, realize frequency division multiplex.And, the electric parameters of circuit one end must be sent to the other end in order on remote

distance power line

21,22, to realize differential protection; extensively one of the method that adopts is to utilize high-voltage power line 21; 22 itself make passage, transmit the both sides electric parameters mutually with high-frequency current, Here it is carrier protection.Carrier circuit 16 can provide carrier protection to be applied in the electric power elongation socket that the configuration of protected circuit two ends has sending and receiving letter machine function;

Input as for received signal conversion line 17 then is the output that is connected carrier circuit 16, and the output of received signal conversion line 17 also is connected to first power line 21 and second power line 22, described received signal conversion line 17 can be converted to the direct current 5V of low-voltage high-tension alternating current 110V/220V, make signal can rely on first power line 21 and second power line 22 to transmit, identical, described received signal conversion line 17 also can be the A/D transforming circuit, this can understand technology for haveing the knack of this skill person, but is not in order to restriction;

So, allow power line network transmit and add supply socket 43 and electric power elongation line function, even have the function of telephone signal, and group formation one can be utilized the signal transmission circuit of power line transmission signal via the power line network transmission.

As for the utility model in practice, then mainly still please referring to Fig. 1, Fig. 2 and shown in Figure 3, it is to be used on the general electric power elongation line, extended line housing 5 surfaces of described electric power elongation line are provided with the plural supply socket 43 of aforementioned connection first power line 21 and second power line 22, a plug 51 is held and be equipped with to first power line 21 and second power line 22 in addition, for the general indoor supply socket of pegging graft, and extended line housing 5 inside are provided with supply socket 43 and are signal transmission circuit 1 in parallel, the signal plug 14 of signal transmission circuit 1 then is located at the surface of extended line housing 5, makes described electric power elongation line have the function of transmission signals.

For another shown in Figure 4, it is that the utility model is used on the supply socket group, socket group housing 6 surfaces of described supply socket group are provided with the plural supply socket 43 of aforementioned connection first power line 21 and second power line 22, and socket group housing 6 inside are provided with supply socket 43 and are signal transmission circuit 1 in parallel, the signal plug 14 of signal transmission circuit 1 then is located at the surface of socket group housing 6, make described supply socket group have the function of transmission signals, it equally has aforesaid function and effectiveness.

In sum, this case not only really belongs to innovation on the kenel of space, and can promote above-mentioned multinomial effect by existing article, should fully meet the legal utility model patent important document of novelty and progressive, files an application in accordance with the law.

More than explanation is novel just illustrative for this; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection range of the present utility model.

Claims

1. signal transmission circuit that can utilize the power line transmission carrier signal, it is characterized in that: it comprises:

One transmits the conversion of signals circuit, and its input is to be connected power line, transmits the conversion of signals circuit high voltage alternating current is converted to low voltage and direct current;

One filter circuit, it is to connect the output that transmits the conversion of signals circuit, described filter circuit is filtered the data packet in the electric current, makes it form decodable signal;

One decoding circuit, it is the output that is connected filter circuit, described decoding circuit makes signal become the data that read for ancillary equipment Ethernet signal or the telephone speech signal decoding of TCP/IP;

At least one signal plug, it is to be connected in parallel on after the aforementioned decoding circuit, for connecting ancillary equipment, carries out reading and transmitting of data;

One coding circuit, its input are the outputs that is connected signal plug, and coding circuit encoded Ethernet data or the telephone voice data of TCP/IP, make data become the signal of power supply line of force transmission;

One carrier circuit, it is the output that is connected coding circuit, described carrier circuit makes signal form data packet;

One received signal conversion line, its input then are the outputs that is connected carrier circuit, and the output of received signal conversion line and be connected to power line, and described received signal conversion line is converted to high-tension alternating current with the direct current of low-voltage.

2. the signal transmission circuit that utilizes the power line transmission carrier signal according to claim 1 is characterized in that: described power line is serially connected with an insurance unit, to prevent overvoltage.

3. the signal transmission circuit that utilizes the power line transmission carrier signal according to claim 1, it is characterized in that: described power line is serially connected with a switch, opens and closes circuit to promote.

4. the signal transmission circuit that utilizes the power line transmission carrier signal according to claim 3 is characterized in that: described power line is serially connected with an insurance unit, prevents superpotential function with generation.