CN2230996Y - Phantom carrier communication equipment - Google Patents
Phantom carrier communication equipment Download PDFInfo
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- CN2230996Y CN2230996Y CN 95229798 CN95229798U CN2230996Y CN 2230996 Y CN2230996 Y CN 2230996Y CN 95229798 CN95229798 CN 95229798 CN 95229798 U CN95229798 U CN 95229798U CN 2230996 Y CN2230996 Y CN 2230996Y
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- circuit
- output
- amplifier
- network
- frequency
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Abstract
The utility model provides a phantom carrier communication device which comprises a transmission part, a reception part, a transmission network and a power supply, wherein, the transmission part is composed of a main vibration circuit A, a main vibration circuit B, a frequency mixing circuit C, a frequency mixing circuit D, an audio frequency amplification circuit, a buffering amplification circuit and a power amplification circuit. The reception part is composed of a high frequency amplification circuit, a frequency conversion circuit, an oscillation circuit, a middle frequency amplification circuit, a wave detection circuit, the audio frequency amplification circuit and a time-delay noise reduction switch circuit. The transmission network is composed of an overhead transmission aerial wire, an earthing network and an insulated aerial wire network. When the utility model is used, special rods and special wires do not need to be erected, and the utility model is not connected with power wires, communication wires and other wire roads. The utility model has the advantages of high safety, far transmission distance and large covering radius. The utility model can be used for the signal transmission of power supply group nets of a plurality of transformers.
Description
The utility model relates to a kind of broadcast communication equipment, particularly relates to a kind of the earth phantom lines carrier broadcast communication apparatus.
At present, the method for transmission broadcast communication mainly contains two kinds, i.e. radio transmission and wire transmission.Utilize radio transmission to be restricted because of the provisions of the relevant regulations issued by the State make its development.And employing wire transmission, the one, rely on special bar special line, the networking investment is big, is subject to nature and artificial destruction, and is difficult in maintenance; The 2nd, utilize power line to make transmission line, as the disclosed a kind of induction type broadcast carrier equipment of Chinese patent 2114930U.Be characterized in relying on power line and make transmission line, belong to the contact-type transmission.Shortcoming is that the signal between transmitter and transmission line and transmission line and the receiving equipment leans on filter or directly uses capacitive coupling, and is breakdown as capacitor to having relatively high expectations of filter and electric capacity, will influence normal power supply, has unsafe factor; In addition,, all take between all low transformer zero lines and ground connection, to install trap additional, make the transformer zero line pass through trap ground connection again, damage, direct trouble free service to transformer and power consumption equipment is constituted a threat to as trap in order not make signal shorts; Sound again, this equipment only is applicable to the signal transmission in the low transformer-supplied net, when transmitting as the signal that will be applicable to many transformer-supplied networkings, generally needs with capacitor or the coupling of LC series resonance, need between each transformer, to set up special bar special line, increase the networking investment.This kind induction type broadcast carrier equipment promotion is used to be restricted.
The purpose of this utility model is to provide a kind of need not set up special bar special line, the earth phantom lines carrier broadcast communication apparatus that also is not connected with power line, order wire and other circuit.
The utility model the earth phantom lines carrier broadcast communication apparatus comprises transmission partly, receives partly, sends network and power supply.Send part by main vibration circuit A, B, mixting circuit C, D, audio amplifier circuit, buffer amplifier circuit and power amplifier constitute.Its annexation is, the output of main vibration circuit A, B and audio amplifier circuit connects mixting circuit C, D input respectively, and mixting circuit C, D output connects the buffer amplifier circuit input, and buffer amplifier circuit output connects the power amplifier input, and power amplifier output receives and sends network.Receive partly and constitute by high-frequency amplifier circuit, frequency changer circuit, oscillating circuit, intermediate frequency amplifier circuit, detecting circuit, audio amplifier circuit and time-delay squelch switch circuit.Its annexation is, high-frequency amplifier circuit input termination antenna, output and output end of oscillating circuit connect the frequency changer circuit input, frequency changer circuit output connects intermediate frequency and is placed on the circuit input, intermediate frequency amplifier circuit output connects the input and the detecting circuit input of time-delay squelch switch circuit, detecting circuit output connects the audio amplifier circuit input, and audio amplifier circuit output connects loudspeaker.Send network by built on stilts transmitting antenna, ground networks and insulated antenna network constitute.Its annexation is that an output termination that sends part is maked somebody a mere figurehead an end of transmitting antenna, makes somebody a mere figurehead the other end insulated antenna network of transmitting antenna, sends another output termination ground networks of part.
The course of work of the utility model the earth phantom lines carrier broadcast communication apparatus is, when sending partially-working, audio signal is amplified through audio amplifier circuit earlier, deliver to mixting circuit C, D together respectively with the high frequency constant-amplitude carrier signal of main vibration circuit A, B generation then and carry out mixing, be modulated to carrier signal, carrier signal is amplified through power amplifier after buffer amplifier circuit amplifies again, sends out by sending network at last.When receiving partially-working, at first receive by telescopic antenna (or dragging line), and enter high-frequency amplifier circuit and amplify, the constant amplitude high-frequency signal that high-frequency signal after the amplification and oscillating circuit produce is added to frequency changer circuit simultaneously, the intermediate-freuqncy signal of output is after intermediate frequency amplifier circuit is amplified, by detecting circuit audio detection signal, after amplifying the back, audio amplifier circuit promotes sound horn.The squelch switch circuit of wherein delaying time is used for control audio amplifying circuit power supply, partly shakes this reception of control switch function partly to realize sending.Be used to receive broadcast singal and the intercommunication signal that sends partly transmission.
The characteristics of the utility model the earth phantom lines carrier broadcast communication apparatus are that signal transmits forward in the mode of surface wave by the earth, and simultaneously all built on stilts lines of hemisphere all will become also transmission signals forward of a kind of phantom lines.Its advantage is to need not to set up special bar special line, compares with wired broadcasting and can save networking and maintenance cost more than 80%.Not with power line, order wire and other circuit connect, and have independence, are not subjected to nature and artificial destruction, and be safe and reliable.Long transmission distance, the broadcasting covering radius is big, can be used for the signal transmission of many transformer-supplied networkings, and in addition, broadcasting also can be transmitted simultaneously with phone, does not disturb, if install telephone exchanger additional, can realize the telephonic communication between the user.
Describe the utility model embodiment in detail below in conjunction with accompanying drawing.
Fig. 1: the utility model circuit general diagram
Fig. 2: the utility model uses schematic diagram
Fig. 3: send partly circuit block diagram
Fig. 4: main vibration circuit A, B, the circuit connection diagram of mixting circuit C, D and audio amplifier circuit
Fig. 5: buffer amplifier circuit connection layout
Fig. 6: power amplifier connection layout
Fig. 7: receive partly circuit block diagram
Fig. 8: receive partly circuit connection diagram
Fig. 9: power supply connection layout
The utility model the earth phantom lines carrier broadcast communication apparatus comprises the transmission part, receives partly, sends network and power supply.Send part by main vibration circuit A and main vibration circuit B, mixting circuit C and mixting circuit D, audio amplifier circuit E, buffer amplifier circuit F, and power amplifier G constitutes.Its annexation is that the output of A and B and the output of E connect C and D input respectively, and C and D output connect the F input, and F output connects the G input, and G output receives and sends network, and wherein the circuit structure of main shake A and B is identical.Main vibration circuit A is by triode V
1～V
3, resistance R
1～R
9, capacitor C
1～C
8, crystal JT
1, voltage stabilizing didoe Z
1, potentiometer W
1～W
2Form; Main vibration circuit B is by triode V
7～V
9, resistance R
24～R
32, capacitor C
14～C
21, crystal JT
2, voltage stabilizing didoe Z
2, potentiometer W
8～W
9Form; Mixting circuit C is by filter LB
1, frequency mixer IC
1(TA7031M), potentiometer W
3～W
4Form; Mixting circuit D is by filter LB
2, frequency mixer IC
3(TA7031M), potentiometer W
10～W
11Form; Audio amplifier circuit E comprises pickup amplification and radio voice amplifying circuit.The pickup amplifying circuit is by triode V
4～V
6, resistance R
10～R
18, capacitor C
9～C
13, potentiometer W
5～W
7, audio frequency amplifier IC
2(LM741), socket CK
1～CK
5Form.The radio voice amplifying circuit is by triode V
10～V
11, resistance R
19～R
23, capacitor C
22～C
23, microphone MIC forms; Buffer amplifier circuit F comprises three-stage amplifier, and wherein the first-level buffer amplifying circuit is by resistance R
33～R
56, capacitor C
24～C
36, potentiometer W
12～W
15, carrier-frequency amplifier IC
4Form.Two utmost point buffer amplifier circuits are by triode V
12～V
13, resistance R
57～R
24, capacitor C
37～C
46, diode Z
2～Z
6, output winding T
1～T
2Form.Three utmost point buffer amplifier circuits are by electron tube VE
1～VE
2, resistance R
45～R
50, capacitor C
47～C
54, full-bridge circuit Q
1, output winding T
3～T
4, coil L
1～L
5, potentiometer W
16, testing jack CK
4And millimeter peace table MA
1Form; The merit circuit comprises power amplifier I and output observation circuit H.Wherein power amplifier I is by electron tube VE
3, resistance R
52, capacitor C
57～C
60, output winding T
6, inductance coil L
6And screen stream table MA
2Form.Output observation circuit H is by audio frequency amplifier IC
5～IC
6, full-bridge circuit Q
2～Q
5, monitor loudspeaker Y, output Table A, amplitude modulation table MA
3, testing jack CK
5, resistance R
51, R
53～R
64, capacitor C
55～C
56, C
61～C
88Form.The signal trend that sends partly is: the high frequency constant-amplitude carrier signal that main vibration circuit A and B produce passes through W
1, W
2Send into the LB of mixting circuit C and D respectively
1, LB
2Pin 1, by LB
1, LB
2Pin 2 enter IC respectively
1, IC
3Carrier frequency input pin 1.Audio signal is amplified through audio amplifier circuit E, and broadcast singal is by IC
2Signal output pin 6 enter IC
1Modulation input pin 2, the CF signal mixing that produces with main vibration circuit A.The radio voice signal that enters MIC is from V
10Collector electrode enter IC
3Modulation input pin 2, the carrier signal mixing that produces with main vibration circuit B.Mixed frequency signal is from the IC of mixting circuit
1, IC
3Output pin 8 pass through W respectively
4, W
1Output.By W
4, W
11The carrier signal of output is passed through C
28Enter IC in the first-level buffer amplifying circuit
4Signal input pin 6, and pass through W respectively by signal output pin 8,12
14, W
15, C
35And W
12, W
13And C
36Output enters V in the level 2 buffering amplifying circuit
12, V
13Base stage is through recommending amplification by T
2Output enters VE in three utmost point buffer amplifier circuits
1, VE
2Grid, through recommend amplify after by T
4Output.By T
4The amplifying signal of output enters the grid of power tube VE3 in the power amplifier, passes through T behind power amplifier
6, C
89, C
90Output.
Receive part by high-frequency amplifier circuit, frequency changer circuit, oscillating circuit, intermediate frequency amplifier circuit, detecting circuit, audio amplifier circuit and time-delay squelch switch circuit constitute.Wherein high-frequency amplifier circuit, frequency changer circuit, oscillating circuit, intermediate frequency amplifier circuit, detecting circuit and audio amplifier circuit are by monolithic amplitude modulation receiver IC
7(TA7641BP) and peripheral cell form.Time-delay squelch switch circuit is by triode V
14～V
15, diode Z
9～Z
11, resistance R
72～R
75, capacitor C
131～C
132Form.The signal trend that receives partly is: by monolithic amplitude modulation receiver IC
7In put output pin 5 output intermediate-freuqncy signal pass through C
130Be coupled to V
15Base stage, by collector electrode output, output signal is passed through C again
132, Z
9～Z
11, C
131, R
72, R
73The multiplication of voltage detection, V is given in time-delay
14Base bias makes V
14Saturation conduction.
Sending network is made of built on stilts transmitting antenna JK, ground networks O and insulated antenna network P.Send output 1 partly and meet built on stilts transmitting antenna JK one end, another termination insulated antenna network of JK P.Sending partly, output 2 connects ground networks 0.
Power supply is for sending partly and receiving partly power supply, and its power circuit is by magnetic saturation transformer TS
1, TS
2, high pressure delay circuit YS and air switch KK form.Its mesohigh delay circuit is by integrated circuit (IC)
8(TX555), control relay J
1～J
3, resistance R
70～R
71, capacitor C
110～C
111, diode Z
7～Z
8Form.
Claims (5)
1, a kind of the earth phantom lines carrier broadcast communication apparatus, comprise and sending partly, receive partly, send network and power supply, it is characterized in that sending partly by main vibration circuit A and main vibration circuit B, mixting circuit C and mixting circuit D, audio amplifier circuit, buffer amplifier circuit and power amplifier constitute, its annexation is, main vibration circuit A, the output of B and the output of audio amplifier circuit meet mixting circuit C respectively, the input of D, mixting circuit C, the output of D connects the buffer amplifier circuit input, buffer amplifier circuit output connects the power amplifier input, and power amplifier output receives and sends network; Receive partly by high-frequency amplifier circuit, frequency changer circuit, oscillating circuit, intermediate frequency amplifier circuit, detecting circuit, audio amplifier circuit and time-delay squelch switch circuit constitute, its annexation is, high-frequency amplifier circuit input termination antenna, output and output end of oscillating circuit connect the frequency changer circuit input, frequency changer circuit output connects the intermediate frequency amplifier circuit input, intermediate frequency amplifier circuit output connects the input and the detecting circuit input of time-delay squelch switch circuit, detecting circuit output connects the audio amplifier circuit input, and its output connects loudspeaker; Send network by built on stilts transmitting antenna, ground networks and insulated antenna network constitute, and its annexation is to send an end of a built on stilts transmitting antenna of output termination partly, another termination insulated antenna network of built on stilts transmitting antenna sends another output termination ground networks partly.
2, the earth phantom lines carrier broadcast communication apparatus as claimed in claim 1, the ground networks that it is characterized in that sending in the network is the 4～8m that is formed by the bare wire coiling
2Network structure; The insulated antenna network is the 4～8m that is formed by anti-corrosion insulation wire-wound system
2Network structure.
3, the earth phantom lines carrier broadcast communication apparatus as claimed in claim 2 is characterized in that main vibration circuit A is identical with main vibration circuit B structure in the transmission partly; Mixting circuit C is identical with mixting circuit B structure.
4, the earth phantom lines carrier broadcast communication apparatus as claimed in claim 3 is characterized in that main vibration circuit A is by triode V in the transmission partly
1～V
3, resistance R
1～V
9, capacitor C
1～C
8, crystal JT
1, voltage stabilizing didoe Z
1, and potentiometer W
1, W
2Form; Mixting circuit C is by filter LB
1, frequency mixer IC
1, potentiometer W
3, W
4Form; Audio amplifier circuit comprises pickup amplifying circuit and radio voice amplifying circuit, and wherein the pickup amplifying circuit is by triode V
4～V
6, resistance R
10～R
18, capacitor C
9～C
13, potentiometer W
5～W
7, audio frequency amplifier IC
2And socket CK
1～CK
3Form, the radio voice amplifying circuit is by triode V
10, V
11, resistance R
19～R
23, capacitor C
22, C
23And microphone MIC forms; Buffer amplifier circuit is made of three-stage amplifier, and wherein the first-level buffer amplifying circuit is by resistance R
33～R
36, capacitor C
24～C
36, potentiometer W
12～W
15, carrier-frequency amplifier IC
4Form, two utmost point buffer amplifier circuits are by triode V
12, V
13, resistance R
37～R
42, capacitor C
37～C
46, diode Z
2～Z
6, output winding T
1, T
2Form, three utmost point buffer amplifier circuits are by electron tube VE
1, VE
2, resistance R
43～R
50, capacitor C
47～C
54, full-bridge circuit Q
1, output winding T
3, T
4, coil L
1～L
5, potentiometer V
16, testing jack CK
4, miliammeter MA
1Form; Power amplifier comprises power amplifier and output observation circuit, and wherein power amplifier is by electron tube VE
3, resistance R
52, capacitor C
57～C
60, output winding T
6, inductance coil L
6And screen stream table MA
2Form, the output observation circuit is by audio frequency amplifier IC
5～IC
6, full-bridge circuit Q
2～Q
5, monitor loudspeaker Y, output Table A, amplitude modulation table MA
3, testing jack CK
5, resistance R
51, R
53～R
64, capacitor C
55, C
56, C
61～C
70Form.
5, the earth phantom lines carrier broadcast communication apparatus as claimed in claim 2, high-frequency amplifier circuit, oscillating circuit, frequency changer circuit, intermediate frequency amplifier circuit, detecting circuit, audio amplifier circuit in it is characterized in that receiving partly are made up of monolithic amplitude modulation receiver and peripheral cell thereof; Time-delay squelch switch circuit is by triode V
14, V
15, diode Z
9～Z
11, resistance R
72～R
75, capacitor C
131, C
132Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95229798 CN2230996Y (en) | 1995-12-28 | 1995-12-28 | Phantom carrier communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95229798 CN2230996Y (en) | 1995-12-28 | 1995-12-28 | Phantom carrier communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2230996Y true CN2230996Y (en) | 1996-07-10 |
Family
ID=33874829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95229798 Expired - Fee Related CN2230996Y (en) | 1995-12-28 | 1995-12-28 | Phantom carrier communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2230996Y (en) |
-
1995
- 1995-12-28 CN CN 95229798 patent/CN2230996Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |