CN1355613A - Wireless public telephone - Google Patents
Wireless public telephone Download PDFInfo
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- CN1355613A CN1355613A CN00131182A CN00131182A CN1355613A CN 1355613 A CN1355613 A CN 1355613A CN 00131182 A CN00131182 A CN 00131182A CN 00131182 A CN00131182 A CN 00131182A CN 1355613 A CN1355613 A CN 1355613A
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- card
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- microprocessor
- mobile phone
- public telephone
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Abstract
The present invention relating to an public wireless telephone device including the organic mobile phone operating circuit features as follows: (1) The central micro-processor II for mobile phone is the type of 80C series; (2) The operation circuits of liquid crystal display screen and IC card receptacle unit connects separately to the interface signal of mobile phone user via micro-processor 12 of 16c series; (3) The solar battery and the spare battery connects separately to the autoamtic switching circuit of voltage monitoring, and the automatic switching circuit output end of voltage monitoring supplies the electricity to each operation circuit separately via each output end of voltatge distributor. The device not only can provide the dialing and receive the call for the user having telephone IC card, but also can save the engineering cost.
Description
The present invention relates to a kind of wireless public telephone.
At present, in the city proper, be provided with in a large number through communication cable and the joining IC Card Telephone booth of telephone exchange, thus the communication that is convenient for people to.Yet, on very long highway, or in other outlying district away from the city, owing to do not have condition setting IC Card Telephone booth, to making people can't use phone IC-card and other people conversation.
The objective of the invention is to provide a kind of wireless public telephone, and it not only can dial or receive phone for the user who holds the phone IC-card.And construction and installation are quick, and engineering cost is low.
The present invention constitutes like this, it comprises former cell phone operating circuit, it is characterized in that: the model of the central microprocessor I1 of (1) cell phone is a 80C series, (2) operating circuit of LCDs operating circuit and IC-card jack apparatus is realized the signal at mobile phone user interface is connected through microprocessor I2 respectively, (3) solar cell is connected with the voltage monitoring automatic switch-over circuit respectively with reserve battery, and the output of voltage monitoring automatic switch-over circuit is powered to each operating circuit respectively through each output of voltage divider.
In order to prevent that wireless public telephone of the present invention from suffering artificial destruction, a vibration alarming unit single channel realizes former cell phone is preset the control that alarm call sends through microprocessor I2.
The present invention is connected with the IC-card jack apparatus of wired public IC Card Telephone booth on the basis of adopting the former cell phone operating circuit that can realize wireless telecommunications, thereby has possessed the function with IC-card conversation and charging.Than the public IC Card Telephone booth of existing wired, it is quick to have construction and installation, the low and safe and reliable remarkable advantage of engineering cost.
Below in conjunction with embodiment the present invention is specifically described.
Fig. 1 is a circuit diagram of the present invention.
With reference to Fig. 1, circuit block diagram of the present invention is made of following circuit part:
1. anti-lightning strike antenna diplexer: avoid thunderbolt for preventing this equipment, major function is to make complete machine reach anti-lightning strike, radiation-resistant purpose and design anti-lightning strike, radiation proof unit at the antenna diplexer input; Antenna diplexer, employing has the intermediate value duplexer of high Q value, important indicator is an isolation between receiving and transmitting signal, and function is to finish frequency-selecting and filtering, inserts loss at 1-2db, during reception, it allows the channel signals of base station to pass through, and sends into receiver module, during emission, after then the output signal of transmitter power amplifier level being suppressed harmonic components, deliver to antenna transmission and give base station.
2. receiving circuit: it is the super heterodyne type ultra-high frequency receiver of double conversion, comprise lawnmower amplifier, crystal phase-locked loop local oscillator, frequency mixer, put and demodulator circuit in multistage, be reduced into audio signal and baseband digital data stream after the ultra-high frequency signal that antenna received is handled.
3. data processor: it finishes traffic spike detection, identification and decoding etc. to demodulator output, its result gives the CPU that microprocessor constitutes, simultaneously, its preparation of also central processor unit being sent here data of launching are carried out chnnel coding and modulation.
4. audio process: one of its function is: the audio signal that receiver front end is demodulated is made and being postemphasised and dynamic expansion is handled, and amplifies then to obtain enough power and removes to promote earphone.When emission, its effect flow process forms the speech low current signal to microphone earlier and is amplified with above-mentioned opposite, and dynamically compresses with the preemphasis processing and by frequency deviation restricting circuits institute amplitude limit.Like this analogue voice signal of Chu Liing with deliver to transmitter module after the digital signal that data processor is sent here is mixed mutually.Certainly for data system, simulated voice still has the source encoding of datumization to handle.
5. radiating circuit: this part comprises 4 unit such as crystal phase locked loop oscillator, modulator-demodulator, two stage power amplifier and transmitting power control.The crystal phase locked loop oscillator can produce the carrier signal of high stability.Modulator then is modulated to armed mixed signal on the carrier wave, then through the power level of two stage power amplifier out, and it and the desired power grade of base station signal is compared, watt level to output is controlled, and makes the transmitting power of output reach the level grade that base station requires.
6. user's meeting (containing IC-card charging, identification circuit) and coupled IC-card anti-theft alarm unit: this part comprises buzzer, IC-card identification, the charging circuit of keyboard, LCDs, microphone, earphone and ring, the IC-card anti-theft alarm unit comprises 16C series microprocessor I2 and coupled respectively IC-card socket, light-emitting diode display and anti-theft alarm unit.It at first inserts IC-card the IC-card interface user, it passes through microprocessor, the Stored Value situation of identification IC-card, and then whether open dial-up circuit by microprocessor identification, if no Stored Value, then microprocessor is after identification, can only be to 112,110,119, outside " urgent call " number that 120 grades preset in advance can dial, other number is all limited, and there is Stored Value to show and functions such as raising, having under the prerequisite of Stored Value, the user can import telephone number by keyboard, display can in time be shown, enter predetermined charging rate IC-card is chargeed when putting through when called the IC-card charge system, the numeral of keyboard is by 0-9 and *, #, redial, compositions such as cancel key.Because he is a public telephone, the storage key that also has, reading key, transmission key, end key, volume key, menu " software " etc., the keyboard that hand-held set occurred just not in design, and has been lain in main frame on this patent product keyboard, only use when keeping in repair.Burglar alarm: form by vibration, displacement transducer and automatic selective calling system, when generation equipment destroyed as smash, when knocking down, the alarm IMU crosses vibration and displacement transducer transmits a signal to central control unit, and can start automatic dial-up circuit to dialling as " 110 " or antitheft center, and show that giving of this equipment put number and installation site, thereby reach antitheft purpose.
7. central control unit: this part is the operating state of this patent and the control centre of each module status.It is to be core with the microprocessor, realizes the logic control function under the operation of program.These functions comprise: receive the data of control channel, and make clock signal (TACS is 8KH2) regeneration, the signaling data that sends is encoded, detect and transmit sat signal, detect the burglar alarm signal, the IC-card charge is calculated, and finishes the various logic functions in the calling procedure.
8. solar powered module: form by solar converter, voltage stabilizing charging circuit and reserve battery, bear the power supply and the voltage dispatch tasks of all working power supply of this equipment.
Wireless public telephone operation principle of the present invention is as described below:
One, caller number dialing telephone call process:
When the user inserts the IC-card socket of " IC-card anti-theft alarm unit " with IC-card or IP phonecard (but this machine identification division is made into general-purpose interface), the display window of " liquid crystal display " transfers the IC-card remaining sum to by original demonstration " please insert IC-card " prompting and is " * * * unit ", after this moment, element circuit was handled by " microprocessor 16C * * ", enter conversation dialing and charging status recognition, the calling subscriber can be by the external number dialing telephone call of dialing keyboard of user interface, " liquid crystal display " promptly shows the telephone number of being transferred to, when circuit enters talking state, microprocessor enters the charging state automatically, after this moment the receiving signal that the keyboard scan bus sends here and discern by " 80C552 central microprocessor " of former mobile phone part by the dialing signal of the dialer in the user interface, signal by microphone and earphone portion passes through speech processor, deliver to radiating circuit after the modulation preemphasis of data processor, radiating circuit externally sends wireless modulated signals to connecing of containerized exchange by " duplexer " and dials platform and connect and be allocated to the purpose that the called subscriber reaches conversation under power supply transmitting power control.
Two, called reception communication process:
When receiving the calling signal of caller by wireless to " duplexer " to " receiving circuit ", ringing circuit is that response concurrent goes out bell signal; And after receive handling and demodulate audio signal by " central microprocessor 80C552 " by the reduction of postemphasising, pass to the called subscriber by earphone, (when this moment, the called subscriber answered, sound circuit is by earphone prompting " please insert IC-card " voice, " liquid crystal display circuit " also shows " please insert IC-card ", when the called subscriber inserts IC-card by " IC-card interface ", can hear the voice signal of caller, called can the conversation.The above course of work has just been finished the transmission in the conversation and the whole process of reception, if telecommunication bureau opens " calling demonstrations " function etc. then at ringing condition, " liquid crystal display " gets final product the calling number of display of calling.
Three, burglar alarm process:
When finding to have the lawless person to destroy this telephone booth, as: kick or promotion etc., vibration (and displacement) transducer of " antitheft element circuit " in this moment " IC-card anti-theft alarm unit " makes an immediate response and informs that to telecommunication bureau's base station transmission preset number the someone destroys by " microprocessor 16C * * " and " central microprocessor 80C552 ", and reaches the purpose of burglar alarm.
Four, solar powered cell operation process:
Because this telephone booth is wireless mode work, therefore adopting solar powered is the most important condition that guarantees conversation.This solar cell for supplying power unit will provide the power supply of several groups of different capacities to supply with " IC-card element circuit ", " receiving element circuit ", " former mobile phone main circuit unit ", " power supply actual effect identification warning circuit " etc. respectively.This solar cell for supplying power unit principle is described below: during this prow task, must be through charging process, the line charger interface is connected with commercial power interface reserve battery (maintenance free cell) is charged, when charging to full value, voltage monitoring warning automatic switch-over circuit will stop charging automatically, then this machine is mounted to the outdoor place that needs to use this machine, simultaneously solar receiver is placed in the place that can fully receive sunlight, this power supply guarantees receiving circuit, central microprocessor and IC-card unit keep power supply, make this machine be in holding state.When the solar time occurring, solar cell promptly receives and charged to reserve battery by the voltage monitoring automatic switch-over circuit in the conversion back of charging, to guarantee the circuitry operate as normal.
Claims (3)
1. a wireless public telephone comprises former cell phone operating circuit, it is characterized in that:
(1) model of the central microprocessor I1 of cell phone is a 80C series,
(2) operating circuit of LCDs operating circuit and IC-card jack apparatus is realized the signal at mobile phone user interface is connected through 16C series microprocessor I2 respectively,
(3) solar cell is connected with the voltage monitoring automatic switch-over circuit respectively with reserve battery, and the output of voltage monitoring automatic switch-over circuit is powered to each operating circuit respectively through each output of voltage divider.
2. wireless public telephone according to claim 1 is characterized in that: the model of central microprocessor I1 is 80CSS2, and the model of microprocessor I2 is 16C57.
3. wireless public telephone according to claim 1 and 2 is characterized in that: vibration alarming unit single channel realizes former cell phone is preset the control that alarm call sends through microprocessor I2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00131182A CN1355613A (en) | 2000-11-25 | 2000-11-25 | Wireless public telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00131182A CN1355613A (en) | 2000-11-25 | 2000-11-25 | Wireless public telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1355613A true CN1355613A (en) | 2002-06-26 |
Family
ID=4594531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00131182A Pending CN1355613A (en) | 2000-11-25 | 2000-11-25 | Wireless public telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1355613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7385885B2 (en) | 2002-04-20 | 2008-06-10 | Lg Electronics Inc. | Magnetic circuit for moving a lens holder of an optical pick-up actuator |
-
2000
- 2000-11-25 CN CN00131182A patent/CN1355613A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7385885B2 (en) | 2002-04-20 | 2008-06-10 | Lg Electronics Inc. | Magnetic circuit for moving a lens holder of an optical pick-up actuator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |