CN2297025Y - Telecontrol switch - Google Patents
Telecontrol switch Download PDFInfo
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- CN2297025Y CN2297025Y CN 97235984 CN97235984U CN2297025Y CN 2297025 Y CN2297025 Y CN 2297025Y CN 97235984 CN97235984 CN 97235984 CN 97235984 U CN97235984 U CN 97235984U CN 2297025 Y CN2297025 Y CN 2297025Y
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- circuit
- carrier
- remote switch
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Abstract
The utility model relates to the communication technology, particularly to a telecontrol switch which uses a telephone network and an electric network as a transmission medium. The telecontrol switch is composed of an instructing device, an instruction receiver, a carrier encoder, a carrier decoder and an electronic switch, wherein the instructing device is a dual-tone multi-frequency terminal telephone of the public telephone network and is connected in parallel with a telephone inlet wire, the carrier decoder is connected in parallel with an electric power inlet wire which has the same power transformer output range as the carrier encoder, and the electronic switch is connected with the carrier decoder. As long as an electric device is in the range which can be covered by the telephone network and the electric network, the utility model can realize simple, reliable and safe telecontrol.
Description
The utility model relates to a kind of communication technology, particularly a kind of Remote switch that utilizes telephone network and power network as transmission medium.
At present, in the medium-long range telecontrol engineering of accomplished in various ways, all there are shortcomings such as complex structure, poor reliability, transmission line signals loss are big,, more exist wiring numerous and diverse, perhaps shortcoming such as circuit repetition rate height if need control to a plurality of equipment.
The purpose of this utility model is to overcome the deficiency of existing telecontrol engineering, and a kind of simple, reliable, safe real time remote control of a plurality of equipment of the occasion that can extend to telephone network and power network is provided.
The purpose of this utility model realizes by following approach.
The Remote switch is by instruction device, command receiver, the carrier wave encoder, carrier decoder and electronic switch are formed, instruction device is the DTMF dual-tone multifrequency terminal phone of public telephone network, comprise landline telephone and mobile phone, command receiver is attempted by on the phone inlet wire, it receives the digital signal that instruction device sends, controlling the carrier wave encoder after treatment sends carrier signal and is coupled to power line by instruction, carrier decoder is attempted by the carrier wave encoder and is on the interior electric power inlet wire of same power transformer output area, the digital signal that its reception carrier encoder sends drives corresponding electronic switch after treatment.
The information code that will comprise the target electronic switch in the instruction of user by the instruction device transmission, the address code benchmark and the address code comparing unit that in carrier decoder, comprise each electronic switch, therefore as long as a cover command receiver, the instruction works that the electronic switch of a plurality of dispersed and distributed is sent by instruction device.Simultaneously, also will comprise the security password of only grasping in the instruction by the user individual.
In sum, the utility model compared to existing technology, have following advantage: remote control distance is long, good confidentiality, control switch quantity is many, scope is wide, as long as in the scope that telephone network and power network can cover, all can realize Remote simple, reliable, safely.
Accompanying drawing 1 is a functional-block diagram of the present utility model.
Accompanying drawing 2 is functional-block diagrams of instruction receiver.
Accompanying drawing 3 is circuit theory diagrams of instruction receiver.
Accompanying drawing 4 is functional-block diagrams of carrier wave encoder.
Accompanying drawing 5 is functional-block diagrams of carrier decoder.
Accompanying drawing 6 is circuit theory diagrams of buffer circuit
Below we carry out more detailed description to the utility model in conjunction with the accompanying drawings.Most preferred embodiment:
With reference to accompanying drawing 1, the Remote switch is made up of instruction device 1, command receiver 2, carrier wave encoder 3, carrier decoder 4 and electronic switch 5.Wherein, instruction device 1 is the DTMF dual-tone multifrequency terminal phone of public telephone network, comprises landline telephone and mobile phone.
With reference to accompanying drawing 2 and accompanying drawing 3, command receiver 2 is made up of ring detecting circuit 2A, DTMF decoding circuit 2B, CPU element 2C, prompting sound circuit 2D, circuit for answering 2E etc.Command receiver 2 is received the instruction that instruction device 1 sends, after reaching set point number, the circuit ringing number notifies CPU element 2C by ring detecting circuit 2A, the off-hook of circuit for answering 2E simulation simultaneously, prompting sound circuit 2D is to circuit carry information sign indicating number input prompt sound, carry make device 1 receive prompt tone after, can be from the direct input information sign indicating number of keyboard.Comprise user cipher, target electronic switching information sign indicating number, conditional code in the information code.Command receiver 2 main bodys are to utilize DTMF decoding special chip IC M8870 to constitute DTMF decoding circuit 2B.The DTMF touch-tone signal is a kind of signal encoding that adopts according to the suggestion of CCTTT, it by two do not become harmonic relationships and arbitrary frequency be not equal to other any two frequencies and or the difference two mixed signals that audio frequency is formed.The frequency that constitutes dtmf signal be divided into the high frequency group (1209Hz, 1336Hz, 1477Hz, 1633Hz) and the low frequency group (897Hz, 770Hz, 852Hz, 941Hz).ICM8870 contains inside two switching capacity filters and peak-peak detector, clock circuit and output register.Double-audio signal is delivered to ICM8870 by resistance R 3, capacitor C 3, earlier by the 60HZ inhibitor, again respectively by two high groups and low group band pass filter, zero crossing detector, and the peak-peak detector after, send into timing and decoding circuit and obtain getting in corresponding eight two heuristicimal code, send into the RA mouth of CPU element 2C again by output register.CR2 constitutes oscillating circuit in the sheet.This chip can use UM9203/04, MC145436 or IC35300 to substitute.CPU is 16C55, clock frequency 3.58MHz, and by ceramic crystal CR1, capacitor C 1, C2 form oscillating circuit.CPU also can be INTEL8051,8096 series, Z86 series, COP8 series or MC68HC05 series.CPU element 2C handles the data of sending into.At first differentiate user cipher, then send the input prompt sound once more by prompting sound circuit 2D as mistake, instruction device 1 can re-enter information code, and as user cipher or mistake, prompting sound circuit 2D send the miscue sound, circuit for answering 2E on-hook.As correctly, CPU will receive the target electronic switching information sign indicating number and the conditional code of input, send into carrier wave encoder by the RC7-RC4 mouth through correlation ratio after.Simultaneously, send the execution prompt tone, circuit for answering 2E on-hook by prompting sound circuit 2D.Circuit for answering 2E is made up of resistance R 4, triode T1, relay J 1 etc.
With reference to accompanying drawing 4, carrier wave encoder 3 produces circuit 3A by address code, modulator 3B, the sinusoidal wave circuit 3C that forms, output amplifier 3D, ALC automatic level control circuit 3E and buffer circuit 3F form, carrier wave encoder 3 receives the information code that command receiver 2 is sent here, produce the address signal that generates corresponding electronic switch among the 3A of road in address code, sinusoidal wave sinusoidal carrier and the address signal that forms circuit 3C generation 275KHz modulated in modulator 3B, after output amplifier 3D amplifies, 3F is sent to power network by buffer circuit, the output amplitude of ALC automatic level control circuit 3E control amplifier makes its output level keep stable.
With reference to accompanying drawing 5, carrier decoder 4 is by buffer circuit 4A, input amplifier 4B, ALC automatic level control circuit 4C, amplitude limiter 4D, phase-locked loop 4E, shaping circuit 4F, address code comparator 4G, address code benchmark 4H, driver 4I forms, the carrier signal that carrier wave encoder 3 sends is sent into the input amplifier 4B from buffer circuit 4A through power network and is amplified, amplitude limit, send into phase-locked loop 4E again and carry out demodulation, the address signal that restores is through shaping circuit 4F shaping, in the address code comparator, compare with the address code benchmark, and drive corresponding electronic switch 5 by driver 4I, the output amplitude of ALC automatic level control circuit 4C control amplifier makes its output level keep stable.
With reference to accompanying drawing 6, buffer circuit is made up of C4, C5, C6, B1.B1 isolates forceful electric power and light current.B1, C6 with resonance in carrier frequency.C4, C5 finish the coupling of input, output.
It is same with prior art that present embodiment is not stated part.
Label declaration: 1 instruction device, 2 command receivers, 3 carrier wave encoders, 4 carrier decoders, 5 electronic switch 2A ring detecting circuit 2B DTMF decoding circuit 2C CPU element 2D prompting sound circuit 2E circuit for answering 3A address codes produce circuit 3B modulator 3C Sine wave shaping circuit 3D output amplifier 3E ALC automatic level control circuit 3F buffer circuit 4A buffer circuit 4B input amplifier 4C ALC automatic level control circuit 4D limiter 4E phaselocked loop 4F shaping circuit 4G address code comparator 4H address code benchmark 4I driver
Claims (8)
1. Remote switch, form by instruction device (1), command receiver (2), carrier wave encoder (3), carrier decoder (4) and electronic switch (5), it is characterized in that instruction device (1) is the DTMF dual-tone multifrequency terminal phone of public telephone network, comprise landline telephone and mobile phone, command receiver (2) is attempted by on the phone inlet wire, carrier decoder (4) is attempted by with carrier wave encoder (3) and is on the interior electric power inlet wire of same power transformer output area, and electronic switch (5) is connected on the carrier decoder (4).
2. Remote switch according to claim 1, it is characterized in that command receiver 2 is by ring detecting circuit (2A), DTMF decoding circuit (2B), CPU16C55 (2C), prompting sound circuit (2D), circuit for answering compositions such as (2E), command receiver (2) is received the instruction that instruction device (1) sends, after reaching set point number, the circuit ringing number notifies CPU16C55 (2C) by ring detecting circuit (2A), the off-hook of circuit for answering 2E simulation simultaneously, prompting sound circuit (2D) is to circuit carry information sign indicating number input prompt sound, after instruction device (1) is received prompt tone, can be from the direct input information sign indicating number of keyboard.
3. Remote switch according to claim 2 is characterized in that information code comprises user cipher, target electronic switching information sign indicating number, conditional code.
4. Remote switch according to claim 2, it is characterized in that DTMF decoding circuit 2B is made of DTMF decoding special chip IC M8870, also can be made of chip, UM9203/04, MC145436 or TC35300, double-audio signal is delivered to ICM8870 by resistance R 3, capacitor C 3.
5. Remote switch according to claim 2 is characterized in that circuit for answering (2E) is made up of resistance R 4, triode T1, relay J 1.
6. Remote switch according to claim 2 is characterized in that CPU16C55 can use INTEL8051,8096 series, Z86 series, COP8 series or MC68HC05 series to substitute.
7. Remote switch according to claim 1, it is characterized in that carrier wave encoder (3) produces circuit (3A) by address code, modulator (3B), the sinusoidal wave circuit (3C) that forms, output amplifier (3D), ALC automatic level control circuit (3E) and buffer circuit (3F) are formed, carrier wave encoder (3) receives the information code that command receiver (2) is sent here, produce the address signal that generates corresponding electronic switch in the road (3A) in address code, sinusoidal wave sinusoidal carrier and the address signal that forms circuit (3C) generation modulated in modulator (3B), after output amplifier (3D) amplifies, (3F) is sent to power network by buffer circuit, the output amplitude of ALC automatic level control circuit (3E) control amplifier makes its output level keep stable.
8. Remote switch according to claim 1, it is characterized in that, carrier decoder (4) is by buffer circuit (4A), input amplifier (4B), ALC automatic level control circuit (4C), amplitude limiter (4D), phase-locked loop (4E), shaping circuit (4F), address code comparator (4G), address code benchmark (4H), driver (4I) is formed, the carrier signal that carrier wave encoder (3) sends is sent into the input amplifier (4B) from buffer circuit (4A) through power network and is amplified, amplitude limit, send into phase-locked loop (4E) again and carry out demodulation, the address signal that restores is through shaping circuit (4F) shaping, in the address code comparator, compare with the address code benchmark, and drive corresponding electronic switch (5) by driver (4I), the output amplitude of ALC automatic level control circuit (4C) control amplifier makes its output level keep stable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97235984 CN2297025Y (en) | 1997-05-06 | 1997-05-06 | Telecontrol switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 97235984 CN2297025Y (en) | 1997-05-06 | 1997-05-06 | Telecontrol switch |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2297025Y true CN2297025Y (en) | 1998-11-11 |
Family
ID=33946962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 97235984 Expired - Fee Related CN2297025Y (en) | 1997-05-06 | 1997-05-06 | Telecontrol switch |
Country Status (1)
Country | Link |
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CN (1) | CN2297025Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101299786B (en) * | 2002-10-14 | 2012-07-04 | 华为技术有限公司 | Base station controller and control method |
-
1997
- 1997-05-06 CN CN 97235984 patent/CN2297025Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101299786B (en) * | 2002-10-14 | 2012-07-04 | 华为技术有限公司 | Base station controller and control method |
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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 |