CN2653795Y - Radio information telephone - Google Patents

Abstract

The utility model relates to a wireless information telephone which comprises seven main parts as follows: a ringing telephone, a speaking circuit, a primary CPU and displaying circuit, a keyboard scan circuit, a reset circuit, a power processing circuit and a wireless receiving, decoding and communication processing circuit. The information and instructions can be transmitted to the information desk through a local cable when the wireless transmission section of the telephone are working, and then a demand is transmitted in time or regularly by the information desk to the destination according to the information or the instructions received through a wireless transmitter wirelessly; the other functions are the same as hard link short massage telephone. The function of the wireless information telephone of the utility model is as follows: receiving an information service sent by the information center, receiving and sending short massages, sending group short massages, setting an inbox, an outbox, a personal assistant such as a phonebook, a permanent calendar, a calculator, an alarm clock, games, and also setting a function of a caller ID and call recording. The utility model has not only the functions of common telephone but also partial functions of a cellphone.

Description

The wireless messages phone

Technical field: the utility model relates to wired fixed net short message telephone set, relates in particular to the wireless messages phone.

Technical background: the information that existing wired fixed line machine, its function can only the sending and receiving local telephone networks does not have the function of the wireless sending and receiving information of mobile phone.

Summary of the invention:

The purpose of this utility model is to overcome the single problem of the wired fixed net short message telephone functionality of prior art, a kind of wireless messages telephone set is provided, it can solve the simultaneously timely reception problem of information telephone user large information capacity, the utility model meets national fixed net short message breath telephony standard, has increased radio SMS breath transfer function simultaneously.

Technical scheme:

Grid is seen Fig. 1.

Operation principle is described, this phone wireless transmission part is when work, subscriber computer utilizes local telephone that information or instruction are sent to information station, information station in time or regularly is sent to the destination to user's requirement by transmitting set with wireless mode, other functional equivalent fixed net short message phone according to information of receiving or instruction.

(1) central platform number: as 96993

(2) central platform downstream frequency: as 279.5875MHZ

(3) the up agreement of telephone set meets the FSK mode of BelL202 standard.

See Fig. 2,

The wireless messages phone is characterized in that, comprises following 7 major parts altogether: ringing circuit, speaking circuit, host CPU and display circuit, keyboard scanning circuit, reset circuit, power supply processing circuit, wireless receiving, decoding and processing communicating circuit; Wherein:

The input of ringing circuit connects telephone wire, and the output of ringing circuit connects the SPK speaking circuit; The telephone wire bell signal is capacitively coupled to ringing circuit, and ring detects and sends into CPU to process;

Speaking circuit is connected to telephone wire by electronic switching circuit, and two-way input/output signal TX, the RX in addition of speaking circuit are connected to hand-free circuit;

The input of hand-free circuit enables to connect host CPU by hands-free, and the input of hand-free circuit connects host CPU by the volume control bus, and the input of hand-free circuit connects transmitter S, and output connects loudspeaker; Hand-free circuit is controlled by the hands-free enable line of host CPU, and host CPU is by volume control bus control music tone ringer size;

The input of host CPU connects wireless receiving, decoding and handles communicating circuit by data/address bus, and host CPU video data bus is connected to display circuit;

Keyboard scanning circuit connects the input of host CPU;

Reset circuit connects the input of host CPU;

Power supply processing circuit is connected respectively to host CPU, display circuit etc.;

Wireless receiving, decoding, processing and communicating circuit: wireless receiving adopts the high frequency dash receiver of beep-pager fully, and it is the GC8218 general-purpose chip that decoding circuit adopts model, wireless receiving, and decoding and treatment circuit connect host CPU by data/address bus.

Described wireless messages phone is characterized in that:

Ringing circuit is that core is formed by ring integrated circuit LS1240A, and two kinds of mode of operations are arranged: alternating current supply status and no AC-powered state are arranged;

Speaking circuit comprises three relevant portions, off-hook loop, handle conversation, hand-free call; The conversation integrated circuit TEA1082 chip that the handle speaking circuit is mainly produced with Philips company is that core is formed, and the MC34018 chip that hand-free circuit is mainly produced with Motorola Inc. is that core is formed;

The large scale integrated circuit W925C240 chip that host CPU adopts WINBOND company to produce is that core is formed;

Display circuit adopts the integrated display panel of Samsung LCD chip for driving;

Keyboard scanning circuit adopts 5*6 matrix logic scanning circuit;

Power supply processing circuit adopts the 78L05 integrated stable voltage circuit;

Wireless receiving, decoding and processing communicating circuit: the pager platform connects wireless receiving module, connects decoding process module again, connects host CPU then; Decoding is interrupted and the data connection is PIC16C622 from the CPU-model, connects host CPU from CPU by EN2, SCLKB, three buses of SDATA.The signal of pager platform downlink wireless is sent to host CPU by wireless receiving module after the decoding process module processing; Decoding is interrupted and data are sent to from the CPU-model to be PIC16C622, more finished data to be sent to host CPU by EN2, SCLKB, three buses of SDATA from CPU.

Fig. 2: wireless messages phone functional-block diagram of the present utility model.

This equipment can be finished short message and handle by the reception of customized various user category informations of phone line information platform and downlink wireless information, realizes the short message service function.

With the W925C240E of Winbond company is the master control chip, respectively circuit such as display driver circuit, handle speaking circuit, hand-free circuit, keyboard scanning circuit, music tone ringer circuit, wireless receiving is realized control and signal processing;

The CPU program adopts modular design, and inside comprises the national standard second Chinese character base, takes two kinds of Chinese character input methods of phonetic and stroke; 35 head edit Music Tone, and program allows the user to edit Music Tone voluntarily; The user can pass through LCD screen message editor article, and similar user and mobile phone user are sent SMS message;

Speaking circuit all adopts integrated circuit, and tonequality is good, and the fidelity height satisfies the various index requests of national telecommunication;

Driver module integrated level height can show 11 dot matrix Chinese characters of the five-element;

Music tone ringer can be finished eight grades of descending volume levels controls by the control of CPU digital coding, and is easy to operate;

The conversion of POCSAG wireless encoding is finished in wireless receiving and processing section, and by routine processes and demonstration, the user can consult the various short messages that these wireless messages platforms issue by keyboard operation at last;

The function of wireless messages phone of the present utility model is as follows:

IP Information On Demand

The information service that automatic reception information centre regularly sends,

Short message

The transmitting-receiving note

Bulk SMS

1 public's mailbox (16 groups) in the inbox

2 note casees (16 groups)

3 consulting mailbox (16 groups)

4 bank's mailbox (16 groups)

5 program request mailbox (96 groups)

6 three private letter boxes (each 16 groups)

Outbox can be deposited 16 groups of breaths of sending out, do not send short messages

14 groups of fixedly common-use words, 16 groups of self-editing common-use words

20 groups of personalized photo

Short message 1 short message arrival notice

2 transmission information are preserved automatically

3 inboxes completely forbid covering

4 short message prompt tone functions

Personal assistant

Telephone directory-can store 255 telephony recordings

Perpetual calendar-demonstration the Gregorian calendar, the lunar calendar, the Heavenly Stems and Earthly Branches, symbolic animal of the birth year, solar term

Calculator---add, subtract, the multiplication and division computing

Alarm clock calling---every day of jingle bell regularly is set; 10 groups of memorandum information are regularly reminded the machine master

Recreation---provide 4 kinds of developmental games for your amusement

Caller identification and message registration function

The FSK/DTMF double-standard

Do not connect, connect, dialed each 255 groups

Do not connect, connect, dialled and telephone directory in phone can directly dial or edit and release note

Can inquire about time, the duration of last conversation

Has the IP direct dialing function

Has the dial feature of presetting

There are 36 kinds of the tinkle of bells available

Description of drawings:

Fig. 1: wireless messages phone of the present utility model in use, message transmission principle grid schematic diagram.

Fig. 2: wireless messages phone functional-block diagram of the present utility model.

Fig. 3: the circuit diagram of ringing circuit in the wireless messages phone.

Fig. 4: the circuit diagram of off-hook loop in the wireless messages phone.

Fig. 5: the circuit diagram of handle conversation in the wireless messages phone.

Fig. 6: the circuit diagram of hand-free circuit in the wireless messages phone.

Fig. 7: the circuit diagram of host CPU circuit in the wireless messages phone.

Fig. 8: the circuit diagram of display circuit in the wireless messages phone.

Fig. 9: the circuit diagram of keyboard scanning circuit in the wireless messages phone.

Figure 10: the circuit diagram of reset circuit in the wireless messages phone.

Figure 11: the circuit diagram of power supply processing circuit in the wireless messages phone.

Figure 12: the circuit diagram of wireless receiving, decoding and processing communicating circuit in the wireless messages phone.

Embodiment: see Fig. 2, the wireless messages phone comprises following 7 major parts altogether: ringing circuit, and speaking circuit, host CPU and display circuit, keyboard scanning circuit, reset circuit, power supply is handled, wireless receiving, decoding and processing communicating circuit;

1. ringing circuit: see Fig. 3,

Ringing circuit has two kinds of mode of operations: the alternating current supply status is arranged and do not have outer power supply state;

A: the mode of operation when the alternating current supply is arranged:

Ringing circuit mainly by C92, C93, R109, R110 from telephone wire coupling AC signalling signal, send into through rectifying and wave-filtering (C5) by one of LS1240A the 7th pin output and the synchronous direct voltage of ring, detect and the usefulness of control output transformer as the tinkle of bells; The tinkle of bells detects and send into CPU after drawing on Z9, R14, Q26, the RN1; When coming ring, CRING/BUSY step-down, bell gap and be in high level at ordinary times; And arranged alternating current when supply because Q33 ends, and LS1240A the 5th pin is outputting oscillation signal not, and the Q25 conducting, and Q6 ends, and transformer T2 is in high-impedance state, does not influence the operate as normal of SPK;

B: when not having AC-powered--there is not the mode of operation of outer power supply state:

Under the situation that does not have the alternating current supply, Q25 ends, Q6 conducting, and also conducting of Q33, and LS1240A works when ring fully, and the 5th pin outputting oscillation signal drives the SPK jingle bell through C6, the tinkle of bells switch, T2;

2. speaking circuit:

Speaking circuit comprises three relevant portions, off-hook loop, handle conversation, hand-free call;

A: off-hook loop: see Fig. 4,

The telephone set outside line enters telephone set through 623K socket (TIP, RING), RV1 (TPA220) be one can instantaneous breakdown (10/1000us) short circuit (transient short-circuit current can reach 100A) between 200-220V the high-performance lightning protection component, play the protection phone and when on-hook and work, be subjected to thunder and lightning and attack damage equipment; T1 is a two-way choking-winding of back-roll each other, enough becomes anti-electromagnetic interference circuit with C1, C2 (high withstand voltage safety electric capacity), makes the phone also can operate as normal when being subjected to electromagnetic impact; D1, D2, D3, D4 constitute typical commutation bridge, and though promptly no matter TIP/RING be connected in that interoffice is positive and negative, the commutation bridge all can guarantee to supply with phone inner correct positive and negative () voltage; Z1, R5, Q4 constitute the additional measure of ring overvoltage protection and lightning protection, play effective protective effect when on-hook; Q1, Q2, R3, Q3 and R4, R6 constitute electronic switching circuit, and when the handle off-hook, S1 (take-up system) connects, and line voltage distribution VLINEO makes the Q3 conducting through R4, makes also conducting of Q1, Q2 through R3; VHFO makes the Q3 conducting through R6 when hands-free; Z2 is a protection voltage stabilizing didoe, and loop voltage is carried out clamped protection (VZ≤18V); R7, R8, Q5 constitute the off-hook detection circuit, and C3, C4 can play and prevent misoperation;

B: handle conversation: see Fig. 5,

The handle speaking circuit is that core designs with the conversation integrated circuit TEA1062 chip that Philips company produces mainly, this chip internal contain send words amplifier, talked about amplifier, DTMF touch-tone signal amplifier and working mode change, power supply reference circuit, the selection of peripheral components parameter all designs to satisfy GB GB index; D23, D24 design in order to improve return loss; R15, C27, R36, R37, R38, R39 and R35 formation are subjected to words, anti-side-tone circuit; R47, R48, R49, C31, C32, C33, C34 constitute DTMF double-tone level Dial-up Network frequently, satisfy the level index; L1, L2, R20, C14 can effectively suppress the high-frequency noise in the speech; S2, D5, R28, R29, C2, Q8 play the effect of time-delay 0.5S when changing the handle talking state over to by the hand-free call state; R9, Q11, Q31 make the signal ground of TEA1062 equate with the internal electrical seedbed under the situation that the alternating current supply is arranged as far as possible, guarantee the off-hook impedance; C15 and D32 are in the key position power supply that does not have to give under the situation of alternating current supply phone, and R98, R99, U8 voltage stabilizing circuit make this voltage≤4.3V, guarantee not have the civil power operate as normal of making a phone call;

C; Hand-free circuit: see Fig. 6,

Hand-free circuit is that core designs with the MC34018 chip that Motorola Inc. produces mainly, this chip internal contains and send the words amplifier, talked about amplifier, send and talked about big or small level comparison circuit, half-duplex conversion circuit, the characteristics of this chip are that it at a time only is operated in the wherein a kind of state that sends or talked about magnifying state, be half-duplex operation, the crosstalk phenomenon of uttering long and high-pitched sounds in the time of can not producing hand-free call; Because civil power is adopted in the power supply supply, so R72, R74, Q7, Q29, Z7, C57 constitute the power saving operating circuit, MC34018 does not power when not needing SPK work; R75, R76, R77, Q13, Q14, Q15, R103, R104, R105 constitute one eight grades volume control circuit, make the music tone ringer can size adjustment; The Q12 amplification can make to send to be talked about under the situation that compares balance and obtain bigger transmission signal;

3. host CPU circuit and display circuit:

See Fig. 7, the large scale integrated circuit W925C240E chip that host CPU adopts WINBOND company to produce is that core designs, this chip is except the kernel of integrated MC-51 single-chip microcomputer, the Rcv decoder of also integrated DTMF, fsk signal, the synthetic generator of DTMF, fsk signal, the CAS signal detector, music tone ringer synthesizes generator, and the MTP sheet can also carry out repeatedly erasable programming;

See Fig. 8, display circuit adopts the parallel data mode, and speed is fast, and efficient height, RS, R/W are data direction and read/write control line; C121-C128 is that LCD shows multiplication of voltage and filtering usefulness, guarantees enough display brightness and eliminates flickering;

FLASH adopts the big capacity in 1M position can repeat erasable 100,000 times electricity and wipes chip;

See Fig. 7, C71, C72, R89, R90, R91, R92 and R125, R126, R127 constitute the input and the balance of DTMF/FSK signal and amplify, decoded and handled by CPU, D13, D14, D15, D16 design for the impact failure of protecting CPU not to be subjected to ringing-current voltage;

C69, R88, R123, C77 constitute the CAS signal and amplify input circuit, are decoded and are handled by CPU;

R93, R130, Q27 are in order to reduce phone circuit noise and designing when receiving the CALL-ID signal, in case there is bell signal to occur, the NIOSE end is promptly put height, and Q27 conducting, the impedance between telephone wire can reduce, quite with circuit noise reduction 25db;

R85, R86, Z8 and Q18 constitute phone elder generation parallel operation testing circuit, when having the parallel operation phone to use on the telephone wire, and PARDET meeting step-down; CPU can at first detect the state of this port when information telephone used telephone wire, showed when the people uses this circuit in " circuit occupied or have fault ";

R132, R133, Q32 constitute the LED-backlit circuit; CPU driving Q32 conducting is lighted the LED-backlit sheet when operation is carried out;

C67, R78, R79, R80, R83, R82, D12, Q16, Q17 constitute busy tone and detect the integer circuit, and CPU carries out trace analysis by this circuit to the state course of telephone line to be handled;

When information telephone visit information platform, R47, R48, R49, C31, C32, C33, C34 constitute wired up fsk signal sendaisle, deliver on the telephone line after TEA1062 amplifies;

4. keyboard scanning circuit: see Fig. 9,

Keyboard scanning circuit adopts typical 5 * 6 matrix logics, scanning incoming line K0, K1, K2, K3, K4 put low respectively one by one, read the value of output line S0-S5 (drawing on the 100K exclusion) again, press and determine that some keys press according to the incompatible key that judged whether of logical groups;

5. reset circuit: see Figure 10,

D19, C74, R94, R95, R96, R97, Q19, Q20, D22 constitute electrify restoration circuit, and resetting voltage designs as calculated about 2.3V, resetting time about 400Ms;

R140, R141, R142, R143, R135, C101, C102, C80, D36, D37, Q40, Q41 constitute watchdog circuit, fly in case running appears in program, watchdog circuit will make cpu reset, and all internal storage datas can not all be fallen in the processing on the program clearly, so parameters such as time how many difference can not take place yet;

6. power supply is handled: see Figure 11,

The power supply processing section is designed in order to satisfy following condition:

A:CPU, LCD, the FLASH operating voltage must be about 3.3V (less than 3.6V);

B: have only alternating current and battery to power to wireless portion;

C: only LED-backlit just can be lighted under the situation of alternating current and telephone wire power taking;

D: only relay just can move under the AC-powered situation, and ring just can the playing back music the tinkle of bells, all is the nature the tinkle of bells under other state;

E: battery and AC-powered all are considered to have electricity condition, form power sense circuit by R70, R71;

D: finish the conversion work of backup battery in the blink behind the alternating current power failure, and under the situation of AC-powered, battery is to be closed to forbid power supply, otherwise battery can be damaged;

More than satisfying several aspect under the situation of condition, voltage stabilizing Scheme Choice 78L05 integrated stable voltage circuit so promptly can satisfy voltage request, can reduce noise jamming again;

7. wireless receiving, decoding and handle communicating circuit: see Figure 12,

The signal of pager platform downlink wireless is to be W925C240E by being sent to host CPU-model again after the processing of wireless receiving module, decoding process module; The scheme and the radio pager principle basically identical that adopt; Wireless receiving module adopts beep-pager high frequency dash receiver fully; Decoder adopts the GC8218 general-purpose chip, decoding interrupt and data to be sent to from the CPU-model be PIC16C622, be that more finished data to be sent to host CPU-model by EN2, SCLKB, three buses of SDATA be W925C240E to PIC16C622 from the CPU-model; The bus power of communication is by the application gained; In order to reduce the interference of noise, choose lower 200KHZ from the clock of CPU to wireless signal;

Claims (2)

1, the wireless messages phone is characterized in that, comprises following 7 major parts altogether: ringing circuit, speaking circuit, host CPU and display circuit, keyboard scanning circuit, reset circuit, power supply processing circuit, wireless receiving, decoding and processing communicating circuit; Wherein:

The input of ringing circuit connects telephone wire, and the output of ringing circuit connects the SPK speaking circuit; The telephone wire bell signal is capacitively coupled to ringing circuit, and ring detects and sends into CPU to process;

Speaking circuit is connected to telephone wire by electronic switching circuit, and two-way input/output signal TX, the RX in addition of speaking circuit are connected to hand-free circuit;

The input of hand-free circuit enables to connect host CPU by hands-free, and the input of hand-free circuit connects host CPU by the volume control bus, and the input of hand-free circuit connects transmitter S, and output connects loudspeaker; Hand-free circuit is controlled by the hands-free enable line of host CPU, and host CPU is by volume control bus control music tone ringer size;

The input of host CPU connects wireless receiving, decoding and handles communicating circuit by data/address bus, and host CPU video data bus is connected to display circuit;

Keyboard scanning circuit connects the input of host CPU;

Reset circuit connects the input of host CPU;

Power supply processing circuit is connected respectively to host CPU, display circuit etc.;

Wireless receiving, decoding, processing and communicating circuit: wireless receiving adopts the high frequency dash receiver of beep-pager fully, and it is the GC8218 general-purpose chip that decoding circuit adopts model, wireless receiving, and decoding and treatment circuit connect host CPU by data/address bus.

2. according to the described wireless messages phone of claim 1, it is characterized in that:

Ringing circuit is that core is formed by ring integrated circuit LS1240A, and two kinds of mode of operations are arranged: alternating current supply status and no AC-powered state are arranged;

Speaking circuit comprises three relevant portions, off-hook loop, handle conversation, hand-free call; The conversation integrated circuit TEA1082 chip that the handle speaking circuit is mainly produced with Philips company is that core is formed, and the MC34018 chip that hand-free circuit is mainly produced with Motorola Inc. is that core is formed.

The large scale integrated circuit W925C240 chip that host CPU adopts WINBOND company to produce is that core is formed;

Display circuit adopts the integrated display panel of Samsung LCD chip for driving;

Keyboard scanning circuit adopts 5*6 matrix logic scanning circuit;

Power supply processing circuit adopts the 78L05 integrated stable voltage circuit;

Wireless receiving, decoding and processing communicating circuit: the pager platform connects wireless receiving module, connects decoding process module again, connects host CPU then; Decoding is interrupted and the data connection is PIC16C622 from the CPU-model, connects host CPU from CPU by EN2, SCLKB, three buses of SDATA.

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