CN2392310Y

CN2392310Y - Instrument for receiving or transmitting radio emergency signals

Info

Publication number: CN2392310Y
Application number: CN 99229474
Authority: CN
Inventors: 陈德清; 陈绍伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-20
Filing date: 1999-09-20
Publication date: 2000-08-16
Anticipated expiration: 2009-09-20

Abstract

The utility model relates to a receiving transmitting detector for radio emergency signals. A transmitter of the utility model is composed of a crystal oscillator, a modulator, an amplifier, a transmitting antenna, a signal generator and a transmitting control switch, wherein, outputs of the crystal oscillator and the signal generator are both connected with the modulator outputs of which are connected to the amplifier; the crystal oscillator, the signal generator, the modulator and the amplifier are all controlled by the transmitting control switch. An output of the amplifier is connected with the transmitting antenna. A receiving detector is composed of a receiving antenna, a preamplifier, a demodulator, an amplifier, a sound direction indicator and a receiving control switch, wherein, an output of the receiving antenna is connected with an input of the preamplifier an output of which is connected with the demodulator; an output of the demodulator is connected with the sound direction indicator via the amplifier; the preamplifier, the demodulator and the amplifier are all controlled by the receiving control switch.

Description

Wireless emergency signal transmitting-receiving detector

The utility model relates to a kind of wireless signal transceiver, particularly a kind of wireless signal transceiver that uses under case of emergency.

At present, safeguarding caused house collapse accidents such as unit because of earthquake, flood and Hazardous Chemical Substances blast, great public place of entertainment fire, country fair, emphasis, many people are by pile things on or be trapped among the rubble of ruins, after the rescue personnel reaches the spot, usually run into such situation: rescue personnel, the personnel family members that suffer a calamity or disaster, surround and watch personnel etc. all at the scene, the condition of a disaster is still indeterminate and stable, and noise is very big, and landform, environment etc. are very abominable, dangerous, complicated.Since not easily and effectively particularly do not have antijamming capability and emission penetration capacity strong, propagation distance is far away, the long emergent alarm signal conveyer of emergent alarm signal transmitting time, can not in time find and investigate thoroughly residing accurate position of the personnel of suffering a calamity or disaster and quantity, can not employ large-scale orcible entry machinery again, often therefore prolong rescue time, many personnel are because of suffocating, poison, injured or because of hunger, the untimely grade of scaring relief causes injures and deaths, as Turkey since recent, Greece, the mass casualties that violent earthquake that ground such as Taiwan take place and tunnel cave-in accident cause, many all above reasons cause.Therefore; how to solve such as earthquake; flood; the tunnel mine caves in; large-scale public place of entertainment; the country fair; the house collapse that emphasis defendance unit fire and Hazardous Chemical Substances blast etc. cause etc. causes a large amount of personnel to be buried; pressed; in time search for when stranded; seek; determine the personnel's of suffering a calamity or disaster direction; the position; quantity is the important topic that the urgent need of relevant rescue department is researched and solved; it also is the earthquake hotspot; high-risk area is (as the tunnel; Hazardous Chemical Substances industrial enterprise; the warehouse; the market place builet below the ground; underground garage); family; the country fair; office building; key area and units such as hospital; strengthen self-protection; in case the condition of a disaster alarm in time takes place and organizes effectively relief to be badly in need of an important difficult problem that solves, caused that people show great attention to and pay attention to.

The purpose of this utility model is exactly in order to address the above problem, and provides a kind of and uses under case of emergency, can reliably send an SOS, and is convenient to the wireless emergency signal transmitting-receiving detector of rescue personnel's rescue.

Technical solution of the present utility model:

A kind of wireless emergency signal transmitting-receiving detector, it is characterized in that it is by transmitter with receive machines and form, wherein transmitter is carried by the user of service, it is made up of crystal oscillator, modulator, amplifier, transmitting antenna, signal generator and transmission control switch, the output of crystal oscillator and signal generator all links to each other with the input of modulator, the output of modulator connects amplifier, and crystal oscillator, signal generator, modulator and amplifier are by sending control switch control, and the output of amplifier is sent wireless first aid signal by transmitting antenna; Receiving machines is worn by the rescue personnel, it is made up of reception antenna, preamplifier, demodulator, amplifier, audio direction indicating device and reception control switch, the output of reception antenna connects the input of preamplifier, the output interface-demodulator of preamplifier, the output of demodulator connects the audio direction indicating device by amplifier, and preamplifier, demodulator and amplifier are by receiving control switch control.

The utlity model has following advantage:

(1) the utility model is used modern science and technology, the integrated level height, and volume is little, is convenient to operation, is easy to carry about with one, and timeliness is long, and it integrates the transmission-receiving function and the measuring ability of wireless signal, and effect is very good.

(2) major function of the present utility model is: but the long period send the radio wave alarm signal, be convenient to the rescue personnel and accurately survey, in time find the personnel's that suffer a calamity or disaster accurate position and organize the rescue work, reduce casualties, improve rescue efficiency.

(3) the utility model has wide practical value, its transmitter is applicable to key area and units such as earthquake district occurred frequently, high-risk area (as tunnel, Hazardous Chemical Substances industrial enterprise, warehouse, market place builet below the ground, underground garage), family, country fair, office building, hospital, in case cause danger, be convenient to that the individual carries and in time send wireless warning information.110, units such as social alarms, first aid, rescue such as 119,122,120 are equipped with and receive machines and can search detection at the scene, and the personnel arrangement of in time finding to suffer a calamity or disaster is sued and laboured.

(4) the utility model is specially adapted to abominable, dangerous complicated, the noisy situation of sound of environment, has antijamming capability, penetration capacity and reaches by force that propagation distance is far away, the characteristics of wide coverage.The utility model also can be used for rescue personnel, scouting personnel, testing staff under special and adverse circumstances, can be used for saving oneself and rescues mutually in case have an accident.

(5) the utility model can be made into multiple pattern.That transmitter can be made into is inserted, wear-type, waist-mounted type, chest are hanging, handset type etc., is convenient for people to portably use.Receive machines can be made into portable, chest is hanging, backpack etc., makes things convenient for the rescue personnel to portably use.

The utility model is described in further detail below with reference to accompanying drawing.

Fig. 1 is a theory diagram of the present utility model;

Fig. 2 is the utility model transmitter embodiment electrical schematic diagram;

Fig. 3 is that the utility model receives machines embodiment electrical schematic diagram.

As Fig. 1, the utility model is made up of transmitter and reception machines, wherein transmitter is carried by the user of service, it is made up of crystal oscillator, modulator, amplifier, transmitting antenna, signal generator and transmission control switch, the output of crystal oscillator and signal generator all links to each other with the input of modulator, the output of modulator connects amplifier, and crystal oscillator, signal generator, modulator and amplifier are by sending control switch control, and the output of amplifier is sent wireless first aid signal by transmitting antenna; Receiving machines is worn by the rescue personnel, it is made up of reception antenna, preamplifier, demodulator, amplifier, audio direction indicating device and reception control switch, the output of reception antenna connects the input of preamplifier, the output interface-demodulator of preamplifier, the output of demodulator connects the audio direction indicating device by amplifier, and preamplifier, demodulator and amplifier are by receiving control switch control.

Transmitter side circuit of the present utility model can be as shown in Figure 2, wherein crystal oscillator is made up of crystal oscillator J, inductance L 10, capacitor C 35 and frequency modulation emission ic chip 2 (model can be BAS3108T), be connected between 1 pin and 16 pin of IC2 after crystal oscillator J and inductance L 10 serial connections, capacitor C 35 is connected between 16 pin and ground of IC2.The signal generator of transmitter is by audio manifold block IC3 (model can be SR8803), capacitor C 25, C26, resistance R 13, R14 form, it is a Wien-bridge oscillator, it triggers input and links to each other with 4 pin of frequency modulation emission ic chip 2,5 pin of IC2 by resistance R 10 and capacitor C 24 and signal generator IC3 output link to each other, IC3 starts under the 4 pin output signals of IC2 trigger, and sends into 5 of IC2 behind C24, R10 filter filtering.The modulator of transmitter is by the inner modulation circuit of frequency modulation emission ic chip 2 with by resistance R 9, R11, R12, the modulated filter circuit that capacitor C 22 constitutes reaches by resistance R 15, R16, the modulation feedback circuit that capacitor C 27 constitutes is formed, the modulated filter circuit is connected between 3 pin and 6 pin of IC2, and the modulation feedback circuit is connected between 8 pin and 6 pin of IC2.The amplifier of transmitter is by the inside amplifying circuit of frequency modulation emission ic chip 2 with by inductance L 11, the middle excitation amplifying circuit that capacitor C 28 constitutes is formed, 9 pin of one termination IC2 after L11 and the C28 parallel connection, the other end meets power supply Ec by power control switch K3, K3 is serially connected between 4 pin and power supply Ec of IC2 simultaneously, operating state control switch K4 connects 7 pin (K3 and K4 can be synchro switch) of IC2, the output of transmitter amplifier is drawn from 14 pin of IC2, it passes through by capacitor C 30, C31, C32, C33, C34, inductance L 12, the output coupling circuit that L13 forms links to each other with transmitting antenna F2.

Reception machines side circuit of the present utility model can be as shown in Figure 3, the preamplifier that wherein receives machines is by the inside amplifying circuit of FM reception ic chip 1 (model can be TA8128F) with by capacitor C 13, C14, C15, C16, C17, C18, C19, C20, inductance L 6, L7, L8, L9, the selective frequency filter circuit that resistance R 8 constitutes reaches by capacitor C 1, C2, C3, C4, C5, inductance L 1, L2, L3, L4, L5, resistance R 1, R4, ceramic filter T1, the intermediate frequency filtering circuit that T2 constitutes is formed, selective frequency filter circuit meets 18 of IC1,19,20,21,22,23,24 pin, 3 of intermediate frequency filtering circuit and IC1,4,5,6,7,8,12 pin link to each other, the reception antenna F1 that receives machines adopts miniature antenna, and it is 1 pin of IC1 by the input that high pass filter BPF connects preamplifier.The demodulator that receives machines is by the inside demodulator circuit of FM reception ic chip 1 with by resistance R 2, R3, the restituted signal indicating circuit that light-emitting diode D1, D2 constitute reaches by capacitor C 10, the restituted signal that resistance R 5, R6 constitute is adjusted circuit and is formed, the restituted signal indicating circuit connects 10 pin, 11 pin of IC1, and restituted signal is adjusted 15 pin that circuit meets IC1.The output of demodulator connects the input of the reception machines amplifier that is made of FM reception ic chip 1 inner amplifying circuit, the output of reception machines amplifier is drawn from 13,14 pin of IC1 and is connect by capacitor C 6, C7, C8, C9, the audio direction indicating device that loudspeaker Y and level meter G constitute, wherein 13 pin of IC1 connect loudspeaker Y by C7, and by C6 ground connection, 14 pin of IC1 meet level meter G by C9, and by C8 ground connection.The control switch that receives machines is made up of mains switch K1 and operating state control switch K2, and K1 is serially connected between each circuit and the power supply E, and K2 passes through by resistance R 7, and the mute circuit that capacitor C 11, C12 constitute links to each other with 17 pin of IC1.

When the utility model used, transmitter was carried by each user, received machines and was then disposed to the rescue personnel by each rescue unit.When in case the condition of a disaster or dangerous situation take place, but the control switch K3 of user's demand working transmitter, K4, then transmitter is started working, this moment, the triggering input of transmitter signal generator IC3 produced an audio signal under 4 pin output signals of frequency modulation emission ic chip 2 trigger, and by filter C24, R10 sends into 5 pin of IC2, it is the input of transmitter modulator, simultaneously, the input that the crystal oscillator signal that the crystal oscillator of transmitter produces is also delivered to modulator from 1 pin and 16 pin of IC2, the audio signal that the inner modulation circuit of IC2 will be sent here by signal generator and modulate by the high-frequency oscillation signal that crystal oscillator is sent here, then from 3 pin of IC2,6 pin, 8 pin with modulation signal through modulated filter circuit and modulation feedback circuit filtering, the inside amplifying circuit of delivering to IC2 after the feedback amplifies, and amplify through the excitation amplifying circuit from 9 pin of IC2, signal after the amplification is sent through the output coupling circuit from 14 of IC2 and is delivered to transmitting antenna F2, and F2 just sends wireless first aid signal like this.

When the rescue personnel is on the scene, opens and receive control switch K1 and K2, make the reception machines in running order.The first aid wireless signal that sends of distress personnel is just sent into 1 pin of FM reception ic chip 1 through high pass filter BPF by reception antenna F1 like this, promptly receive the input of machines preamplifier, and through 3 of IC1,4,5,6,7,8,12,18,19,20,21,22,23, the demodulator circuit of delivering to IC1 inside after the selective frequency filter circuit of 24 pin and intermediate frequency filtering processing of circuit are amplified by the inside amplifying circuit of IC1 again carries out demodulation, simultaneously, restituted signal adjustment circuit carries out the gain controlling adjustment from 15 pin of IC1 to it, and through 10 of IC1,11 pin are delivered to the restituted signal indicating circuit and are shown, the adjusted signal of demodulation is after the inside of IC1 amplifying circuit final stage is amplified, one tunnel audio signal of inciting somebody to action is wherein delivered to the loudspeaker Y that receives audio direction indicating device the machines from 13 pin of IC1, make the rescue personnel hear wireless first aid signal, the level meter G of audio direction indicating device is delivered to the level signal in the restituted signal on another road from 14 pin of IC1, this moment, the rescue personnel only needed constantly to adjust direction and the angle of reception antenna F1, the appearance value of capacitor C 20 in the selective frequency filter circuit that 24 pin of the IC1 of cooperation adjustment are simultaneously connect, cooperate to adjust restituted signal that 15 pin of IC1 are connect again and adjust the resistance of resistance R 6 in the circuit, thereby come to determine as early as possible person for help's direction and position by the sound intensity of loudspeaker Y and the indication size of level meter G, be convenient to Emergency Assistance.A reception machines can be searched detection to a plurality of transmitter signals at the scene, and in time rescues, and makes the loss of casualties reduce to bottom line.

Claims

1, a kind of wireless emergency signal transmitting-receiving detector, it is characterized in that it is by transmitter with receive machines and form, wherein transmitter is carried by the user of service, it is made up of crystal oscillator, modulator, amplifier, transmitting antenna, signal generator and transmission control switch, the output of crystal oscillator and signal generator all links to each other with the input of modulator, the output of modulator connects amplifier, and crystal oscillator, signal generator, modulator and amplifier are by sending control switch control, and the output of amplifier is sent wireless first aid signal by transmitting antenna; Receiving machines is worn by the rescue personnel, it is made up of reception antenna, preamplifier, demodulator, amplifier, audio direction indicating device and reception control switch, the output of reception antenna connects the input of preamplifier, the output interface-demodulator of preamplifier, the output of demodulator connects the audio direction indicating device by amplifier, and preamplifier, demodulator and amplifier are by receiving control switch control.

2, wireless emergency signal transmitting-receiving detector according to claim 1, it is characterized in that described transmitter crystal oscillator is made up of crystal oscillator J, inductance L 10, capacitor C 35 and frequency modulation emission ic chip 2, be connected between 1 pin and 16 pin of IC2 after crystal oscillator J and inductance L 10 serial connections, capacitor C 35 is connected between 16 pin and ground of IC2; The signal generator of transmitter is by audio manifold block IC3, capacitor C 25, C26, resistance R 13, R14 form, it is a Wien-bridge oscillator, it triggers input and links to each other with 4 pin of frequency modulation emission ic chip 2,5 pin of IC2 pass through resistance R 10 and capacitor C 24 and signal generator IC3 output link to each other; The modulator of transmitter is by the inner modulation circuit of frequency modulation emission ic chip 2 with by resistance R 9, R11, R12, the modulated filter circuit that capacitor C 22 constitutes reaches by resistance R 15, R16, the modulation feedback circuit that capacitor C 27 constitutes is formed, the modulated filter circuit is connected between 3 pin and 6 pin of IC2, and the modulation feedback circuit is connected between 8 pin and 6 pin of IC2; The amplifier of transmitter is by the inside amplifying circuit of frequency modulation emission ic chip 2 with by inductance L 11, the middle excitation amplifying circuit that capacitor C 28 constitutes is formed, 9 pin of one termination IC2 after L11 and the C28 parallel connection, the other end meets power supply Ec by power control switch K3, K3 is serially connected between 4 pin and power supply Ec of IC2 simultaneously, operating state control switch K4 connects 7 pin of IC2, the output of transmitter amplifier is drawn from 14 pin of IC2, it passes through by capacitor C 30, C31, C32, C33, C34, and the output coupling circuit that inductance L 12, L13 form links to each other with transmitting antenna F2.

3, wireless emergency signal transmitting-receiving detector according to claim 1, the preamplifier that it is characterized in that described reception machines is by the inside amplifying circuit of FM reception ic chip 1 with by capacitor C 13, C14, C15, C16, C17, C18, C19, C20, inductance L 6, L7, L8, L9, the selective frequency filter circuit that resistance R 8 constitutes reaches by capacitor C 1, C2, C3, C4, C5, inductance L 1, L2, L3, L4, L5, resistance R 1, R4, ceramic filter T1, the intermediate frequency filtering circuit that T2 constitutes is formed, selective frequency filter circuit meets 18 of IC1,19,20,21,22,23,24 pin, 3 of intermediate frequency filtering circuit and IC1,4,5,6,7,8,12 pin link to each other; The reception antenna F1 that receives machines adopts miniature antenna, and it is 1 pin of IC1 by the input that high pass filter BPF connects preamplifier; The demodulator that receives machines is by the inside demodulator circuit of FM reception ic chip 1 with by resistance R 2, R3, light-emitting diode D1, the restituted signal indicating circuit that D2 constitutes reaches by capacitor C 10, resistance R 5, the restituted signal that R6 constitutes is adjusted circuit and is formed, the restituted signal indicating circuit connects 10 pin of IC1,11 pin, restituted signal is adjusted 15 pin that circuit meets IC1, the output of demodulator connects the input of the reception machines amplifier that is made of FM reception ic chip 1 inner amplifying circuit, the output that receives the machines amplifier is from 13 of IC1,14 pin are drawn and are connect by capacitor C 6, C7, C8, C9, the audio direction indicating device that loudspeaker Y and level meter G constitute, wherein 13 pin of IC1 connect loudspeaker Y by C7, and by C6 ground connection, 14 pin of IC1 meet level meter G by C9, and by C8 ground connection, the control switch that receives machines is made up of mains switch K1 and operating state control switch K2, K1 is serially connected between each circuit and the power supply E, K2 passes through by resistance R 7, capacitor C 11, the mute circuit that C12 constitutes links to each other with 17 pin of IC1.