CN2265641Y - Fully automatic controlled computer telephone help-calling device - Google Patents

Abstract

The utility model discloses a fully automatic controlled computer telephone help-calling device, which is composed of a telephone interface circuit, a signal tone shaping circuit, a central control circuit and a voice replaying circuit. The help-calling device can be directly connected with a public telephone network without non-polar requirements, the help-calling device adopts self-powered way, and has no effect on telephone exchangers and telephones. By utilizing the utility model, not only the dropping of the communication signals owing to the drop calls does not occur, but the signals can be recorded with the erasing of the previous recording, and the recording time can be freely set with sixteen seconds. The utility model is suitable for the dual-tone multifrequency system, users can automatically send short distance and long distance help-calling message to a rescue department through the utility model. The utility model has the advantages of simple and convenient operation, low cost, reliable performance, calling for help from the long distance and the short distance, etc.

Description

Automatic Control computer telephone rescue beacon

The utility model discloses a kind of Automatic Control computer telephone rescue beacon, be called DF type Automatic Control computer telephone rescue beacon again, it belongs to art of electronics, also belongs to the post and telecommunications technical field, also belongs to public safety precautionary technology field.

Along with people's living standard improves constantly, more and more pay attention to personal safety and good health and a long life, the family that telephone set is housed is also more and more, but under the situation that jeopardizes healthy and life security, want armrest to dial electricity live number seek help medical first aid department and public security department, and can not realize when needed that Automatic Control calls for help overall process.

The purpose of this utility model is: can not full automatic deficiency in order to overcome above-mentioned calling for help overall process, plan is designed a kind of use public telephone network and is sent distress call, the call device that its overall process is controlled automatically by microcomputer, and can keep silent at the dangerous situation scene.

For realizing that the measure that the utility model purpose is taked is: DF type Automatic Control computer telephone rescue beacon (Fig. 2) mainly is made up of four parts: telephony interface circuit (7); Signal tone shaping circuit (8); CPU central control circuit (10) and voice playback circuitry (9).

Fig. 1 illustrates being connected of rescue beacon and telephone network circuit.Subscriber phone (1) links to each other with public telephone network circuit (2) by terminal box (3), DF type Automatic Control computer telephone rescue beacon (4) also is connected on the telephone line, be serially connected in open type switch (5) in the rescue beacon circuit as the switch of rescue beacon, press switch when running into dangerous situation and just can start rescue beacon work, realize the microcomputer calling for help overall process of control automatically.Signal tone shaping circuit (Fig. 3) judges that according to the width of orthopedic voice signal answer signal is blind sound or ring-back tone, and the signal tone shaping circuit has disposed one and declared circuit passband (Fig. 4), carries out logic determines; The sequence of program instructions of CPU central control circuit is the software backbone of rescue beacon; Playback sound circuit (Fig. 5) is to realize typing voice and the permanent key problem in technology of preserving at random.

When work, to press and call for help switch (5) (Fig. 1), CPU central controller (10) (Fig. 2) transmits control signal, the relay J in the signal tone shaping circuit ₁(Fig. 3) adhesive, the action of generation off-hook, then, send the dialing instruction, the telephone number that presets (Fig. 2) sends to telephone network by telephone interface circuit (7), after switch is received dialing signal, beam back and reply signal, deliver to signal tone shaping circuit (8) through telephone interface circuit and (Fig. 2) detect.If busy tone, then central control circuit (10) (Fig. 2) sends on-hook and instructs relay J ₁(Fig. 3) disconnect, be equivalent to on-hook, the adhesive again after 5 seconds that pauses is equivalent to off-hook again, and CPU central control circuit (10) (Fig. 2) sends the instruction of transfering second rescue unit number.If detecting and replying signal is the ring-back signal, then the CPU central controller (Fig. 2) sends playback instruction to voice playback circuitry (9), recorded the voice of putting in the playback sound circuit and (Fig. 2) sent to telephone network through telephone interface circuit (7), it is fixed that time that voice are reset and number of repetition are put by software.After transmission finished, central controller sent the on-hook instruction, and relay disconnects, and is equivalent to on-hook, and adhesive again after 5 seconds of pausing is equivalent to off-hook again, and the CPU central controller sends the instruction of transfering next rescue unit number.In the signal tone shaping circuit, adopted by transistor U ₃, diode D ₉Declare circuit passband (Fig. 4) with the self-control modules A is formed, detected ring-back signal is judged, called for help whether off-hook of recipient, if recipient's off-hook, then send the playback instruction, if recipient's ring-back signal sent 6, off-hook not as yet, then the CPU central controller sends the on-hook instruction, rather than playback instruction, the rescue beacon on-hook, off-hook is again dialled the number of next rescue unit.So continuing circulation goes down.Until battery drop to can not keep calling for help work or disconnect call for help switch till.

DF type Automatic Control computer telephone rescue beacon and telephone network line connection layout (Fig. 1).Form by subscriber phone (1), terminal box (3), public telephone network circuit (2), DF type Automatic Control computer telephone rescue beacon (4) and open type switch parts such as (5).

The electrical block diagram (Fig. 2) of DF type Automatic Control computer telephone rescue beacon is made up of telephony interface circuit (7), signal tone shaping circuit (8), CPU central control circuit (10) and voice playback circuitry (9) four parts.

The signal tone shaping circuit (Fig. 3) of this rescue beacon is by triode (Q ₁, Q ₂, Q ₃, Q ₄), diode (D ₁, D ₅), relay J ₁, relay tip J _1-1, module U ₇, resistance (R ₁₀, R ₁₁, R ₁₂, R ₁₃, R ₁₄, R ₁₅), telephone line terminal (13) ,+5V binding post (11), output (14) and non-polarization circuit B form.

The controlling signal that the CPU central controller sends makes+5V binding post power connection triode Q ₁Work, relay J ₁Start J _1-1Contact adhesive, switch are beamed back reply signal by the telephone connection post through relay tip J _1-1Nonpolar circuit B is added to triode Q ₂, Q ₃, Q ₄Carry out shaping, the signal after the shaping is through module U ₇Deliver to and declare circuit passband and go to detect.

Of the present utility modelly declare circuit passband (Fig. 4) by transistor U ₃, capacitor (C ₁₂, C ₁₃, C ₁₄, C ₁₅), resistor (R ₂₃, R ₂₄, R ₂₅, R ₂₆, R ₂₇, R ₂₈, R ₂₂), potentiometer (RW ₁), diode (D ₉), module (A) and integrated circuit I _C1Form.

Controlling signal is via triode U _sBe added to integrated circuit I _C1Pin 1, will compare from the signal that the shaping signal of pin 7 and self-control modules A are delivered to pin 3, to judge whether off-hook of recipient, judged result is delivered to the CPU central controller by pin 7.

The telephony interface circuit of this rescue beacon has adopted the non-polarization circuit, and therefore, rescue beacon inserts the nonpolarity requirement of public telephone network.

This rescue beacon adopts the self-powered mode, neither telephone set and switch is produced any influence, does not also need other distribution source.

The playback sound circuit (Fig. 5) of this rescue beacon is by triode (Q ₅, Q ₆), capacitor (C ₁₇, C ₁₈, C ₁₉, C ₂₀), resistor (R ₁₀, R ₁₁, R ₁₂, R ₅, R ₂₉, R ₃₀, R ₃₂) and integrated circuit (I _C2) form.

The CPU central controller sends controlling signal will be stored in integrated circuit I _C2Interior voice signal takes out via triode Q ₆Amplify the back and deliver to loudspeaker, then import through triode Q by terminal 22 if speech sound signal is put or changed in record by terminal 21 ₅Send into integrated circuit I after the amplification _C2Storage.

Thereby, both be not afraid of power down and lost signal, again can be with smearing with record, record length can freely be provided with in 16 seconds.

This rescue beacon is taked full machine work, the technical measures of de-interfaced, the function of realization rescue beacon self check.

Compared with the prior art, the technique effect that reached of the utility model:

1. simple to operate: the user just can only need press next switch when dangerous situation takes place after preseting the telephone number of calling for help the recipient and calling for help voice, dangerous situation information just under the control of microcomputer, sends to the rescue department that all are made an appointment.

2. maintain secrecy: the overall process (from off-hook, dialing automatically, detect and reply, declare logical, playback voice to on-hook) that sends distress call is controlled automatically by microcomputer, and the dangerous situation scene keeps silent.

3. full process automatization: the Automatic Control process adopts the C Programming with Pascal Language, and instruction is few, flexibly.

4. reliable: after dangerous situation takes place, can call for help the recipient to preseting, sequential loop is sent the calling for help voice, calls for help voice 16 seconds at every turn, repeats secondary, and sequential loop was called for help one time 6 minutes totally, was recycled to dangerous situation always and separated till the depleted of energy of danger or battery.

5. purposes is wide: after this rescue beacon connects corresponding inductive probe, and can be as preventing plundering, prevent pilferage, anti-fire, preventing gas poisoning and disease burst calling for help etc.

6. long-range calling for help: as long as the place that telephone network is stretched over all can be called for help.

7. funds are economized: do not need special stringing networking, telephone set is not produced any influence when using with the telephone set doubling, when to be called for help usually, this machine is consumed power not.

In sum: the utility model is applied widely, is specially adapted to bank, warehouse, cultural relic preservation, residential building, has very high social benefit and economic benefit.

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Description of drawings:

Fig. 1 is a DF type Automatic Control computer telephone rescue beacon line graph.Wherein 1 represents subscriber phone; 2 expression subscriber's telephone lines; 3 expression telephone connect wire boxs; 4 expression DF type Automatic Control computer telephone rescue beacons; 5 open type switches.

Fig. 2 is the utility model electricity theory diagram.Wherein 6 represent telephone wires; 7 expression telephone line interface circuits; 8 is the signal tone shaping circuit; 9 is the voice playback circuitry; 10 is the CPU central controller.

Fig. 3 is the utility model voice shaping circuits.Wherein terminal 11 connects the 5V power supply; Terminal 12 meets CPU; Terminal 13 connects subscriber's telephone line; Terminal 14 connects the CPU control signal.

Fig. 4 is that the utility model is declared circuit passband.Wherein terminal 15 connects the CPU control signal; Terminal 16 connects the 5V power supply; The input of terminal 17 signals; Terminal 18 connects the CPU control signal.

Fig. 5 is the utility model playback sound circuit.Wherein: terminal 19 connects the 5V power supply; Terminal 20 connects the 5V power supply; Terminal 21 connects loudspeaker; Terminal 22 expression phonetic entries; Terminal 23 connects the 5V power supply.

Embodiment:

Present embodiment is being bought the standard plastic shell on the market, and full-automatic microcomputerized control is partly used a two-sided printed circuit, and operation shows and recording playback line branch is made with the circuit that is printed on one side.Except that modules A, signal tone shaping circuit, voice playback circuitry, interface circuit are the special module, other devices all adopt commercially available device.Control command software is stored in the memory, and the technical indicator that the Automatic Control computer telephone rescue beacon of making reaches is:

Power supply DC7.5～10V;

Waiting to exhale the state current sinking is 0;

Calling for help state current sinking is 110mA;

Can preset 15 telephone numbers, each telephone number length is 15;

Can preset speech sound signal length is 16 seconds, can preset voice playback number of times;

Call for help start-up time≤3 second;

Sequential loop is called for help;

Inserting impedance during work, is 600 Ω under the 1000Hz condition;

Insert impedance 〉=10M Ω when not working;

Volume 167mm * 134mm * 60mm;

Weight 600g.

Claims (5)

1. Automatic Control computer telephone rescue beacon that can directly be connected into the telephone set network, it is characterized in that: the utility model is by telephone interface circuit (7), signal tone shaping circuit (8), CPU central control circuit (10) and voice playback circuitry (9) four parts constitute, rescue beacon is connected with public telephone network by telephone interface circuit (7), signal tone shaping circuit (8) is busy tone or ring-back tone to answer signal shaping and the judgement by the interface input, the program command of CPU central control circuit (10) is controlled automatically carrying out of whole calling for help process, and playback sound circuit (9) realizes calling for help the typing and the playback of voice under the instruction of CPU central control circuit;

2. by the described computer telephone rescue beacon of claim 1, it is characterized in that: the signal tone shaping circuit judges that according to the width of orthopedic voice signal answer signal is busy tone or ring-back tone, and the signal tone shaping circuit is by comprising self-control module (U ₇), triode (Q ₄), diode (D ₅), capacitor (C ₁₀) form;

3. by claim 1 or 2 described computer telephone rescue beacons, it is characterized in that: the signal tone shaping circuit has also disposed one and has declared circuit passband, for comprising self-control module (A) and capacitor C ₁₄, C ₁₅, diode D ₉, resistance R ₂₈And the circuit of potentiometer (RW1) composition, carry out logic determines;

4. by the described computer telephone rescue beacon of claim 1, it is characterized in that: the sequence of program instructions of She Ji CPU central controller voluntarily is the software of the microcomputer of rescue beacon, all is stored in the CPU central control circuit (10);

5. by the described computer telephone rescue beacon of claim 1, it is characterized in that: realize the playback sound circuit of the permanent language of preserving of typing at random, it comprises integrated circuit (I _C2), triode Q ₅And Q ₆Forming circuit.

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