CN2082498U - Portable type movable broadcast station with noncentre adress - Google Patents
Portable type movable broadcast station with noncentre adress Download PDFInfo
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- CN2082498U CN2082498U CN 91200501 CN91200501U CN2082498U CN 2082498 U CN2082498 U CN 2082498U CN 91200501 CN91200501 CN 91200501 CN 91200501 U CN91200501 U CN 91200501U CN 2082498 U CN2082498 U CN 2082498U
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Abstract
The utility model discloses a portable type movable broadcast station with non-center address. The utility model is composed of antennae, a receiver, a transmitter, a frequency synthesizer, a controller, etc. In particular, the controller is composed of a single-chip computer and other integrated devices to complete the calling and called functions. Meanwhile, the host machine and the structure of a Japanese U6 portable type interphone are adopted. As a result, the utility model has the advantages of simple structure, small size, convenient installation and debugging, high sensibility for carrier detection, interference rejection, stable performance, electricity saving, and low cost. The utility model can be popularized for application to various fields of communication as a portable type movable broadcast station with non-center.
Description
The hand-hold type that the utility model relates in a kind of communications field does not have the center location mobile station, is specially adapted to the control networking of no center, multichannel common, chooses the no center station communication of idle channel automatically.
The no center mobile station volume of domestic production at present is big, and power consumption is many, complex structure, and it is not little that its main cause is that the controller volume of no center mobile station is done, and complex structure, and power consumption also is difficult for reducing.The no center mobile station of producing as Baoji 769 factories because volume is too big, can only be used for vehicle-mountedly, uses heaviness very inconvenient.The FYA-903 type that Wuhan City 710 factories produce does not have the center mobile station, though volume is few, power consumption is big, and operating current is up to 65 milliamperes, and the use cost height is restricted the communication work time, also makes troubles to use.
The purpose of this utility model be to avoid above-mentioned the deficiencies in the prior art part and provide that a kind of volume is little, power consumptive province, simple in structure, the convenient installation transfer dress, uses dexterous hand-hold type not have the center location mobile station.
The purpose of this utility model is finished in the following manner: it is made up of microphone 1, transmitter 2, antenna 3, receiver 4, loudspeaker 5, frequency synthesizer 6, controller 7.Its middle controller 7 is by power-supply controller of electric 8, modulator 9, demodulator 10, carrier detector 11, monolithic computer 12, keyboard 13 constitutes, the output 1 of monolithic computer 12 is connected with the input of power-supply controller of electric 8, the end that goes out of power-supply controller of electric 8 goes into to hold 1 to link to each other with the power input 1 of modulator 9 and the power supply of demodulator 10 respectively, the end 2 that goes out of monolithic computer 12 goes into to hold 2 to be connected with the data of modulator 9, the end that modulates of modulator 9 is connected with transmitter 2 voice amplifier inputs, the input 3 of monolithic computer 12 is connected with the demodulating data output of demodulator 10, the signal of demodulator 10 is gone into end 2 and is connected with the demodulator output 1 of receiver 4, and the input port 4 of monolithic computer 12 is connected with the output of carrier detector 11.The input of carrier detector 11 goes out end 2 with the squelch circuit of receiver 4 and is connected, and the input port 5 of monolithic computer 12 is connected with keyboard 13, and the output 6 of monolithic computer 12 is connected with the data input pin of frequency synthesizer 6.And words bamboo 1 is connected with transmitter 2, and transmitter 2 outputs are connected with antenna 3, and antenna 3 is gone into end with receiver 4 and is connected, and receiver 4 is connected with loudspeaker 5, and frequency synthesizer 6 outputs are gone into end with transmitter 2, receiver 4 respectively and are connected.
Power-supply controller of electric 8 in the utility model controller 7 is made up of transistor Q1, Q2 and resistance R 1, and carrier detector 11 is by operational amplifier U1, U2, diode D1, D2, and resistance R 2, capacitor C, K switch are formed.Wherein the transistor Q1 emitter in the power-supply controller of electric 8 and power supply V link to each other, current collection very output, the base stage of power-supply controller of electric 8 be connected by the collector electrode of resistance R 1 with transistor Q2, the grounded emitter end of transistor Q2, base stage are the input of power-supply controller of electric 8.Resistance R 2 one ends in the carrier detector 11 are connected in parallel as anti-phase negative input end, the positive pole of diode D1, capacitor C, K switch one end of its input, the other end and operational amplifier U1, operational amplifier U1 homophase positive input terminal ground connection, the output of operational amplifier U1 and diode D1 negative pole, D2 positive pole also connect, the homophase positive input terminal of operational amplifier U2 and diode D2 negative pole, the capacitor C other end, the K switch other end are connected in parallel, the anti-phase negative input end of operational amplifier U2 meets reference voltage V1, and its output is the output of carrier detector 11.
The utility model has following advantage compared to existing technology:
1, volume is little, is convenient to install, and can not have center communication mobile station as hand-hold type.
2, power consumptive province, operating current have only 27 milliamperes, and particularly suitable is to the conditional occasion of power supply.
3, carrier wave detection sensitivity height is easily avoided disturbing the communication channel of choosing.
4, because circuit is simple, stable and reliable for performance, be convenient to the debugging assembling, be fit to produce in batches.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a functional-block diagram of the present utility model.
Fig. 2 is the schematic diagram of the utility model controller 7.
Fig. 3 is a kind of embodiment electrical schematic diagram of the utility model power-supply controller of electric 8.
Fig. 4 is a kind of embodiment electrical schematic diagram of the utility model carrier detector 11.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model is made up of microphone 1, transmitter 2, antenna 3, receiver 4, loudspeaker 5, frequency synthesizer 6 and controller 7.Its middle controller 7 is made of power-supply controller of electric 8, modulator 9, demodulator 10, carrier detector 11, monolithic computer 12, keyboard 13.
The output 1 of monolithic computer 12 is connected with the input of power-supply controller of electric 8, power-supply controller of electric 8 its effects are that the utility model is at the working power V that treats control shutoff modulator 9, demodulator 10 under the receiving state signal, in the next energized of receiving state signal, can save energy, the output of power-supply controller of electric 8 is gone into end 1 with the power supply that the power supply of modulator 9 is gone into end 1 and demodulator 10 respectively and is connected.A kind of embodiment of the utility model power-supply controller of electric 8 is made up of transistor Q1, Q2 and resistance R 1, and the emitter e of transistor Q1 links to each other with power supply V, and embodiment power supply V adopts dry cell to make power supply, and output voltage is 12 volts.Transistor Q1 collector electrode c is that output, the base stage b of power-supply controller of electric 8 is connected with transistor Q2 collector electrode c by resistance R 1, its emitter e ground connection, base stage b is the input of power-supply controller of electric 8, " shutoff " of power-supply controller of electric 8 or " connection " power supply are by monolithic computer 12 instruction manipulations, embodiment transistor Q1 adopts commercially available CG9012 type pipe to make, and transistor Q2 adopts commercially available 3DG4 pipe to make.
The output 2 of monolithic computer 12 connects and composes the data input channel with the input 2 of modulator 9, the output of modulator 9 is connected with transmitter 2 voice amplifier inputs, constitute the modulation output channel, modulator 9 its effects are modulated on pair carrier wave through modulator 9 by the signaling data of output 2 outputs of monolithic computer 12, send transmitter 2 to launch.The utility model modulator 9 is narrow-band FM MSK modulator, and embodiment it adopt XR-2211 type and XR-2226 type integrated package modulator to be made.The carrier frequency of present embodiment is 400 megahertzes, also the frequency of available other frequency range.
The input 3 of monolithic computer 12 is connected with the demodulating data output of demodulator 10, constitute the demodulating data input channel of monolithic computer 12, the signal input part 2 of demodulator 10 is connected with the demodulator output 1 of receiver 4, constitute the radio demodulating signal input channel, demodulator 10 its effects are paid the carrier frequency restituted signal to demodulator 10 when receiver 4 receives radiofrequency signal through the output of receiver demodulator, and demodulator 10 solves signaling data is sent into monolithic computer 12 by output input 3.The utility model demodulator 10 is narrow-band FM MSK demodulator, and embodiment it adopt XR-2211 type and XR-2226 type integrated package demodulator to be made.
The input 4 of monolithic computer 12 is connected with the output of carrier detector 11, the input of carrier detector 11 is connected with the squelch circuit output 2 of receiver 4, whether the effect of carrier detector 11 is that the size of the noise level sent here according to receiver 4 is differentiated channel occupied, go into end 4 to what testing result was delivered to monolithic computer 12, carrier detector 11 is by operational amplifier U1, U2, diode D1, D2, resistance R 2, capacitor C, K switch is formed, wherein resistance R 2 one ends are as its input, the anti-phase negative input end of the other end and operational amplifier U1, the positive pole of diode D1, capacitor C one end, K switch one end is connected in parallel, operational amplifier U1 homophase positive input terminal ground connection, the output of operational amplifier U1 and diode D1 negative pole, the D2 positive pole also connects, the homophase positive input terminal of operational amplifier U2 and diode D2 negative pole, the capacitor C other end and the K switch other end also connect, the anti-phase negative input end of operational amplifier U2 meets reference voltage V1, embodiment reference voltage V1 is connected on a potentiometer centre cap, all the other two ends of potentiometer are connected with power supply V and ground end respectively, change reference voltage V1 size, change the carrier wave detection sensitivity thereby reach, its output of operational amplifier U2 is the output of carrier detector 11, operational amplifier U1, diode D1, D2, resistance R 2, capacitor C and K switch are formed the noise integrator, operational amplifier U2 plays the detection threshold effect to the output waveform shaping of integrator.Embodiment operational amplifier U1, U2 adopt commercially available LM324 type integrated device, and diode D1, D2 adopt commercially available 2CK8 type device, and resistance R 1, R2, capacitor C adopt commercially available general-purpose device, and K switch embodiment adopts commercially available CD4053 type digital simulation switch.The utility model Fig. 3, Fig. 4 are a kind of embodiment circuit, also can adopt other different circuit to implement, and reach the action principle and the function of power-supply controller of electric 8 and carrier detector 11.
The output 6 of monolithic computer 12 is connected with frequency synthesizer 6 data input pins, and its effect is provided with by 12 pairs of frequency synthesizers 6 of monolithic computer, to realize frequency scanning and to give and putting.Frequency synthesizer 6 outputs are gone into end with transmitter 2, receiver 4 respectively and are connected, and its effect provides the standard-frequency signal source for receiver 4, transmitter 2, as the reference frequency of separating the mediation modulation.
The effect of monolithic computer 12 realizes no center location mobile communication rules, finishes the control networking of no center, multichannel common, chooses controlled function such as idle channel automatically, and 8 87C51 type single chip microcontrollers of its employing of embodiment are made.
The utility model microphone 1 is connected with transmitter 2, and transmitter 2 outputs are connected with antenna 3, and antenna 3 is connected with receiver 4 inputs, and receiver 4 outputs are connected with loudspeaker 5.Microphone 1 its effect changes into audio electrical signal to the language audio signal, input transmitter 2, and transmitter 2 is modulated into carrier signal to audio electrical signal and sends by antenna 3.Antenna 3 receives the carrier signal that the transmitter 2 in strange land sends and sends into receiver 4, and the modulator of receiver 4 is modulated into audio electrical signal to carrier signal, sends into loudspeaker 5 then, and audio signal is converted to voice signal.Antenna 3 the utility model transmit-receive sharings.The electric schematic circuit of embodiment microphone 1, transmitter 2, antenna 3, receiver 4, loudspeaker 5, frequency synthesizer 6 and assembly structure all adopt the circuit in the Japanese U6 type portable interphone of producing to be connected with assembly structure and assembling.Shell mechanism of the present utility model and size adopt the shell mechanism of the U6 type portable interphone of Japan's production equally.All circuit elements devices of power-supply controller of electric 8 in the embodiment controller 7, modulator 9, demodulator 10, carrier detector 11 and monolithic computer 12 are installed on long 91 millimeters of size, the wide 55 millimeters printed circuit board (PCB) and constitute controller board of the present utility model, this controller board is installed in the former Board position place frequently of putting at the U6 type portable interphone shell rear portion of Japan's production, and in fact the utility model replaces to control board of the present utility model to the frequency plate of putting in the U6 type portable interphone of Japan's production.
The utility model operation principle is as follows: when the caller state, monolithic computer 12 is by keyboard 13 input dial data, put frequency synthesizer 6 and carry out idle channel frequency scanning and giving and put by giving, the receiver demodulator output signal that 11 pairs of receivers 4 of while carrier detector are sent here detects, testing result is output high level or low level signal, determine by monolithic computer 12 whether the signal that will choose is idle, after choosing idle channel, form call signaling then, power up for modulator 9 by monolithic computer 12 driving power controllers 8 again, modulator 9 is started working, monolithic computer 12 outgoing signaling data are defeated by modulator 9, and the narrow-band FM carrier signal after modulation sends signal through transmitter 2 and antenna 3.
When at called state, received signals is through antenna 3 input receivers 4, and receiver 4 output signal incoming carrier detectors 11, when call signal, carrier detector 11 detects output low level detection signal after the carrier signal, after monolithic computer 12 receives this detection signal, driving power controller 8 powers up for demodulator 10, demodulator 10 work, the narrow-band FM carrier signal that receiver 4 is sent here is after demodulation 10 demodulation, send monolithic computer 12 with signaling data, single-chip microcomputer 12 is received the call signaling data, and after the address conforms to, idle channel according to the signaling data appointment, carry out the channel setting by frequency synthesizer 6, receiver 4 the demodulator demodulation after audio signal convert voice signal to by loudspeaker, finish conversation.11 milliamperes of power consumptions are descended in 7 interrupter duties of the utility model controller in working order, and power consumption is 3 milliamperes under the due-in state, so power saving, just with convenient.
Claims (2)
1, a kind of by microphone 1, transmitter 2, antenna 3, receiver 4, loudspeaker 5, the hand-hold type that frequency synthesizer 6 is formed does not have the center location mobile station, it is characterized in that controller 7 is formed in addition, its middle controller 7 is by power-supply controller of electric 8, modulator 9, demodulator 10, carrier detector 11, monolithic computer 12, keyboard 13 constitutes, the output 1 of monolithic computer 12 links to each other with the input of power-supply controller of electric 8, the output of power-supply controller of electric 8 links to each other with the power input 1 of modulator 9 and the power input 1 of demodulator 10 respectively, the output 2 of monolithic computer 12 is connected with the data input pin 2 of modulator 9, the end that modulates of modulator 9 is connected with transmitter 2 voice amplifier inputs, the input 3 of monolithic computer 12 is connected with the demodulating data output of demodulator 10, the signal of demodulator 10 is gone into end 2 and is connected with the demodulator output 1 of receiver 4, the input port 4 of monolithic computer 12 is connected with the output of carrier detector 11, the input of carrier detector 11 goes out end 2 with the squelch circuit of receiver 4 and is connected, the input port 5 of monolithic computer 12 is connected with keyboard 13, the output 6 of monolithic computer 12 is connected with the data input pin of frequency synthesizer, and microphone 1 is connected with transmitter 2, transmitter 2 outputs are connected with antenna 3, antenna 3 is gone into end with receiver 4 and is connected, receiver 4 is connected with loudspeaker 5, frequency synthesizer 6 outputs respectively with transmitter 2, receiver 4 is gone into end and is connected.
2, hand-hold type according to claim 1 does not have the center location mobile station, it is characterized in that the power-supply controller of electric 8 in the controller 7 is made up of transistor Q1, Q2 and resistance R 1, carrier detector 11 is made up of operational amplifier U1, U2, diode D1, D2, resistance R 2, capacitor C, K switch, wherein the transistor Q1 emitter in the power-supply controller of electric 8 be connected with power supply V, current collection very output, the base stage of power-supply controller of electric 8 be connected by the collector electrode of resistance R 1 with transistor Q2, the grounded emitter end of transistor Q2, base stage are the input of power-supply controller of electric 8; Resistance R 2 one ends in the carrier detector 11 are connected in parallel as anti-phase negative input end, the positive pole of diode D1, capacitor C one end, K switch one end of its input, the other end and operational amplifier U1, operational amplifier U1 homophase positive input terminal ground connection, the output of operational amplifier U1 and diode D1 negative pole, D2 positive pole also connect, the homophase positive input terminal of operational amplifier U2 and diode D2 negative pole, the capacitor C other end, the K switch other end are connected in parallel, and the anti-phase negative input end of arithmetic unit U2 meets reference voltage V1, its output is the output of carrier detector 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91200501 CN2082498U (en) | 1991-01-10 | 1991-01-10 | Portable type movable broadcast station with noncentre adress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91200501 CN2082498U (en) | 1991-01-10 | 1991-01-10 | Portable type movable broadcast station with noncentre adress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2082498U true CN2082498U (en) | 1991-08-07 |
Family
ID=4911441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91200501 Withdrawn CN2082498U (en) | 1991-01-10 | 1991-01-10 | Portable type movable broadcast station with noncentre adress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2082498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045853C (en) * | 1995-03-31 | 1999-10-20 | 缪民强 | Speech-controlled mobile transceiver |
-
1991
- 1991-01-10 CN CN 91200501 patent/CN2082498U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045853C (en) * | 1995-03-31 | 1999-10-20 | 缪民强 | Speech-controlled mobile transceiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |