CN2911822Y

CN2911822Y - Man gwarding indoor alarmer utilizing wired TV network media

Info

Publication number: CN2911822Y
Application number: CN 200620025773
Authority: CN
Inventors: 孔付林
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-11
Filing date: 2006-04-11
Publication date: 2007-06-13
Anticipated expiration: 2016-04-11

Abstract

The utility model discloses an indoor alarm based on cable TV network, which comprises a cable TV network, a modulator, a central controller comprising a central control circuit, and a terminal provided with a terminal circuit; the output of the central control circuit is connected with the input of the modulator whose output is connected with the input of the cable TV network. The FM socket in the user end signal output panel of the cable TV network is connected with the input of the terminal circuit inside the terminal through cable connection. The benefits of the utility model are that the cable TV network is used as the medium, guaranteeing simple, reliable, and interference immune alarming performance. In addition to the traditional alarming characteristics, voice alarm and broadcast are available, allowing voice explanation for unknown alarming signals, hence allowing residents to be informed to make decisions. The terminal can be used in sitting rooms, corridors and official buildings.

Description

Utilize the vehicular people's air defense indoor warning of cable TV network device

Technical field

The utility model relates to people's air-defence warning's device, particularly be to utilize the vehicular people's air defense indoor warning of cable TV network device.

Background technology

Existing people's air-defence warning's device mainly is a motor siren, and its principle of work is to have the wind wheel of several vocal holes to rotate with one of motor drives to sound, and distinguishes signal kinds with the time interval.The shortcoming of this class warning horn is: 1.. signal distinguishing is single, can not carry out audio alert, is difficult to adapt to modern accident complicated and changeable.2.. the equipment heaviness, the cost height, mounting condition requires high.3. the .380v Alternating Current Power Supply is big to the electrical network dependence.4.. the target installation site is obvious, and easily poor destruction and recovery difficulty are big.5.. along with the urban construction and development, high buildings and large mansions more and more stand in great numbers in the inner city, have caused the warning blind area of outdoor warning, in the inner city, outdoor warning sound often is submerged in the city noise, makes that being in indoor personnel can't hear alarm basically.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provide a kind of with people's air-defence warning's signal by means of cable TV network as media, be transferred to the people's air defense indoor warning device in places such as room, corridor, sub-district, market, workshop, office.

The technical scheme that solves the problems of the technologies described above is: a kind of vehicular people's air defense indoor warning of cable TV network device that utilizes, and this people's air defense indoor warning device comprises: cable TV network; Modulator also comprises: the terminating machine that receives and send the terminating circuit of people's air-defence warning's signal is equipped with in central controller, inside that the central control circuit of providing people's air-defence warning's signal is equipped with in inside; The output terminal of described central control circuit connects the input end of modulator, the output terminal of modulator connects the input end of cable TV network, and the frequency modulation socket FM of the signal accessory power outlet of cable TV network user side connects the signal input part of terminating circuit in the terminating machine by cable.

Described central control circuit comprises: single-chip microcomputer IC1 input end connects the control circuit of different categories within police force operating key K1 to K5 and stop key K6, the open command circuit of control terminal machine work, the alarm signal source circuit that stores alerting signal and shutdown signal translation circuit, the out-of-work out code circuit of control terminal machine, uses the broadcast circuit of broadcasting pronunciation; Wherein, connect the input end of modulator behind the open command output terminal P12 of single-chip microcomputer IC1 connection open command circuit and the electronic switching circuit; Connect the input end of modulator behind the halt instruction output terminal P13 connection closed instruction circuit of single-chip microcomputer IC1 and the electronic switching circuit; The broadcasting instructions output terminal P19 of single-chip microcomputer IC1 connects the input end of broadcast circuit control broadcast state, and the signal output part of broadcast circuit connects the input end that connects modulator behind the signal switching circuit; The receive a crime report Play Control end of the number of notifying source circuit of the alarm command control output end P14 to P17 of single-chip microcomputer IC1 connects the input end of modulator behind the output termination signal switching circuit of alarm signal source circuit; What meet single-chip microcomputer IC1 behind the shutdown signal of the alarm signal source circuit output termination shutdown signal translation circuit stops control end P06.

Described central controller is provided with: be the different categories within police force operating key K1 to K5 of interlocking and stop key K6, instruction output plughole, alarm signal output plughole, microphone jack, power switch, supply hub each other; Wherein: K1 is that categories within police force operating key, K2 are that urgent categories within police force operating key, K3 are that releasing categories within police force operating key, K4 are that voice categories within police force operating key, K5 are broadcasting categories within police force operating keys in advance; P07 to the P11 end of described single-chip microcomputer IC1 and P19 end connect the negative terminal of pilot lamp LED1 to LED6 respectively, the anode of pilot lamp LED1 to LED6 is connecting resistance R1 to R6 respectively, another termination power Vcc of resistance R 1 to R6 is connected a pilot lamp LED10 who is in series and resistance R 24 between power Vcc and ground.

Described terminating machine is a machine box that has signal input part, penetrable sound hole, supply hub, be provided with reception and send people's air-defence warning's terminating circuit in the machine box, this terminating circuit comprises: power circuit, receiving circuit, instruction demoding circuit, electronic switching circuit, squelch circuit, audio amplifier circuit, loudspeaker; Wherein power circuit connects receiving circuit, instruction demoding circuit, electronic switching circuit respectively; Connect the input end of audio amplifier circuit behind the receiving circuit series connection squelch circuit; The output terminal of electronic switching circuit connects the power input of squelch circuit and audio amplifier circuit respectively; The unlatching data output end of instruction demoding circuit connects the switch control end of squelch circuit; Audio amplifier circuit output termination loudspeaker.

The beneficial effects of the utility model are: 1. the utility model is except that having traditional alerting signal, audio alert and broadcast capability have been increased, can carry out audio alert to disaster some bursts, not clear and definite alerting signal kind or that need explain at once, make numerous residents can know alarm content, be convenient to take corresponding measure.2. employing low power dissipation design, the power supply plan that AC and DC is dual-purpose is guaranteed alarm terminal work as usual when no alternating current.3. utilize cable TV network to mediate, simple, safe and reliable, antijamming capability is strong, and it is effective to report to the police.4. terminal power amplifier watt level changes flexibly, is installed in places such as room, corridor, sub-district, market, workshop, office as required.5. main frame and terminal device simplicity of design, dependable performance, cost is low, and the efficient height is very easily popularized.

Description of drawings

Fig. 1 is the structural perspective of the utility model central controller;

Fig. 2 is the rear view of Fig. 1;

Fig. 3 is the utility model circuit side connector block diagram;

Fig. 4 a, Fig. 4 b are the circuit connection diagrams of central control circuit 101 among Fig. 3;

Fig. 5 is the utility model terminating machine structural perspective;

Fig. 6 is the utility model terminating circuit connection layout;

Fig. 7 is the power circuit connection layout of the utility model terminating circuit;

Fig. 8 is a single-chip microcomputer IC1 reproduced pulse oscillogram after operating key K1 to K5 is triggered;

Fig. 9 is a single-chip microcomputer IC1 reproduced pulse oscillogram after stop key K6 is triggered;

Figure 10 is each pin reproduced pulse oscillogram of single-chip microcomputer IC1 original state.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Fig. 1 is the structural perspective of the utility model central controller; Fig. 2 is the rear view of Fig. 1; Fig. 3 is the utility model circuit side connector block diagram; Fig. 4 a, Fig. 4 b are the circuit connection diagrams of central control circuit 101 among Fig. 3; Fig. 5 is the utility model terminating machine structural perspective; Fig. 6 is the utility model terminating circuit connection layout; Fig. 7 is the power circuit connection layout of the utility model terminating circuit; Fig. 8 is be triggered respectively a single-chip microcomputer IC1 reproduced pulse oscillogram when providing alarm signal in advance, Emergency Alert Message, the signal of sounding all clear, voice siren, broadcast warning signal of operating key K1, K2, K3, K4, K5; Fig. 9 is a single-chip microcomputer IC1 reproduced pulse oscillogram after stop key K6 is triggered; Figure 10 is a single-chip microcomputer IC1 original state reproduced pulse oscillogram.

As Fig. 1, Fig. 3, shown in Figure 5, the utility model provides a kind of vehicular people's air defense indoor warning of cable TV network device that utilizes, and this people's air defense indoor warning device comprises: the terminating machine 605 that receives and send the terminating circuit 102 of people's air-defence warning's signal is equipped with in central controller 516, inside that the central control circuit 101 of providing people's air-defence warning's signal is equipped with in cable TV network 113, modulator 112, inside.The output terminal of described central control circuit 101 connects the input end of modulator 112, the output terminal of modulator 112 connects the input end of cable TV network 113, and the frequency modulation socket FM of the signal accessory power outlet 114 of cable TV network 113 user sides connects the signal input part 603 of terminating circuit 102 in the terminating machine 605 by cable.

Shown in Fig. 4 a, Fig. 4 b, described central control circuit 101 comprises: single-chip microcomputer IC1 input end connects the control circuit 104 of different categories within police force operating key K1, K2, K3, K4, K5 and stop key K6, the open command circuit 105 of control terminal machine 102 work, the alarm signal source circuit 110 that stores alerting signal and shutdown signal translation circuit 111, control terminal machine 102 out-of-work out code circuit 107, uses the broadcast circuit 108 of broadcasting pronunciation; Wherein, connect the input end of modulator 112 behind the open command output terminal P12 of single-chip microcomputer IC1 connection open command circuit 105 and the electronic switching circuit 106; Connect the input end of modulator 112 behind the halt instruction output terminal P13 connection closed instruction circuit 107 of single-chip microcomputer IC1 and the electronic switching circuit 106; The broadcasting instructions output terminal P19 of single-chip microcomputer IC1 connects the input end of broadcast circuit 108 control broadcast state, and the signal output part of broadcast circuit 108 connects the input end that connects modulator 112 behind the signal switching circuit 109; The receive a crime report Play Control end of the number of notifying source circuit 110 of the alarm command control output end P14 to P17 of single-chip microcomputer IC1 connects the input end of modulator 112 behind the output termination signal switching circuit 109 of alarm signal source circuit 110; What meet single-chip microcomputer IC1 behind the shutdown signal of the alarm signal source circuit 110 output termination shutdown signal translation circuit 111 stops control end P06.

Shown in Fig. 1, Fig. 2, Fig. 4 a, described central controller 516 is provided with: be different categories within police force operating key K1, K2, K3, K4, K5 and the stop key K6 of interlocking, instruction output plughole 517, alarm signal output plughole 518, microphone jack M, power switch 515, supply hub 519 each other; Wherein: K1 is that categories within police force operating key, K2 are that urgent categories within police force operating key, K3 are that releasing categories within police force operating key, K4 are that voice categories within police force operating key, K5 are broadcasting categories within police force operating keys in advance; P07 to the P11 end of described single-chip microcomputer IC1 and P19 end connect the negative terminal of pilot lamp LED1 to LED6 respectively, the anode of pilot lamp LED1 to LED6 is connecting resistance R1 to R6 respectively, another termination power Vcc of resistance R 1 to R6 is connected a pilot lamp LED10 who is in series and resistance R 24 between power Vcc and ground.

Shown in Fig. 4 a, described open command circuit 105 comprises: six reverser ic chips 2, coding integrated package IC5 and four two-way switch ic chips 4; Input end 1 pin of six reverser ic chips 2, the 3 pin P12 end, the P13 end that are connected single-chip microcomputer IC1 wherein, its 14 pin, 7 pin connect respectively power Vcc,, its output terminal 2 pin and 4 pin connect 14 pin of the coding integrated package IC6 of coding integrated package IC5 and out code circuit 107 respectively.

18 pin, 10 pin of described coding integrated package IC5 connect power Vcc, its 9 pin and 11 pin to 13 pin ground connection, and its 17 pin connects 3 pin of four two-way switch ic chips 4, connecting resistance R8 between its 15 pin and 16 pin.18 pin of above-mentioned IC5 are power inputs; Its 1 pin to 8 pin is the geocoding end; Its 10 pin to 13 pin is the digital coding end; Its resistance R 8 is oscillation resistances, and effect is a decision internal oscillator frequency; Its 17 pin is the data stream output terminal.

Shown in Fig. 4 a, described out code circuit 107 comprises: six reverser ic chips 2, coding integrated package IC6 and four two-way switch ic chips 4; 18 pin of integrated package IC6 of wherein encoding connect power Vcc, its 9 pin to 13 pin ground connection, and its 17 pin connects 9 pin of four two-way switch ic chips 4, connecting resistance R11 between its 15 pin and 16 pin, its 1 pin to 8 pin is a coding side; 14 pin of four two-way switch ic chips 4,7 pin connect respectively power Vcc,, its switch control end 5 pin, 6 pin, 13 pin connect P12 end, P13 end, the P18 end of single-chip microcomputer IC1, its 1 pin and 2 pin are connected the xy end with MP3 development board IC8, after its output terminal 4 pin and 8 pin connect instruction output plughole 517, meet the R channel input end R of modulator 112 with cable.

18 pin of above-mentioned IC6 are power inputs; Its 1 pin to 8 pin is the geocoding end; Its 10 pin to 13 pin is the digital coding end; Its resistance R 8 is oscillation resistances, and effect is a decision internal oscillator frequency; Its 17 pin is the data stream output terminal.

Shown in Fig. 4 a, Fig. 4 b, described alarm signal source circuit 110 comprises: four two-way switch ic chips 3 and general MP3 development board IC8.Wherein 13 pin of four two-way

switch ic chips

3,5 pin, 6 pin, 12 pin connect P14 end, P15 end, P16 end, the P17 end of single-chip microcomputer IC1 respectively, its 14 pin and 7 pin connect power Vcc and ground respectively, and its 1 pin to 4 pin and 8 pin to 11 pin are connected four groups of gauge tap ab, cd, ef, the mn with MP3 development board IC8 respectively; The J4-4 pin of general MP3 development board IC8 and J4-5 pin connect power Vcc and ground respectively, connect the normally closed contact of the 2nd group of switch J1K2 of the relay J 1 in the signal switching circuit 109 behind the alarm signal output terminal J3-15 pin series capacitance C12 of its alarm signal source circuit 110, the central contact of the 2nd group of switch J1K2 of relay J 1 is received a crime report behind the number of the notifying output plughole 518, meets the L channel input end L of modulator 112 with cable; Connect decode frequently input end 2 pin of integrated package IC9 of double-tone in the shutdown signal translation circuit 111 after the shutdown signal output terminal J3-17 pin resistance in series R16 of its alarm signal source circuit 110, the capacitor C 13.

The general MP3 development board of IC8 is that manufacturer plays plate for the user provides the general MP3 of secondary development function in above-mentioned the utility model, it has ten play buttons, and one-to-one relationship is arranged with play content, promptly when triggering first play button ab of general MP3 development board, this general MP3 development board can only be play the MP3 format file with ab corresponding file by name 00000001; When triggering second play button cd of general MP3 development board, this general MP3 development board can only be play the MP3 format file with cd corresponding file by name 00000002 ...In this is used, at first with four kinds of alarm signals, promptly, the audio files that alarm signal in advance, Emergency Alert Message, the signal of sounding all clear, voice siren are recorded into MP3 format is stored in the storer of general MP3 development board, will be in advance alarm signal called after 00000001, Emergency Alert Message called after 00000002, the signal called after 00000003 of sounding all clear, with voice siren called after 00000004.As long as trigger a certain button, can play its corresponding file.There is 1 second double-audio signal at the end of each alarm signal, as automatic shutdown signal.

Shown in Fig. 4 b, described shutdown signal translation circuit 111 comprises: double-tone decode frequently one of them reverser and diode D1 in integrated package IC9, the six reverser ic chips 2; Wherein decode frequently 18 pin, 10 pin of integrated package IC9 of double-tone connect power Vcc, its 5 pin, 6 pin, 9 pin ground connection, connecting resistance R17 between its input end 2 pin and 3 pin, its 1 pin is connected with 4 pin, meet quartz crystal X between its 7 pin and 8 pin, its 15 pin connects 5 pin of six reverser ic chips 2; What meet single-chip microcomputer IC1 behind the output terminal 6 pin series diode D1 of six reverser ic chips 2 stops control end P06.

Shown in Fig. 4 b, described general MP3 development board IC8 output terminal J3-15 pin also connects an alarm monitoring circuit 201, this alarm monitoring circuit 201 is: the pin with MP3 development board IC8 output terminal J3-15 is connected in 3 pin series coupled capacitor C, 11 backs of audio frequency amplification integrated block IC 7 input ends, its 2 pin, 4 pin ground connection, connect capacitor C 10 between its 1 pin, 8 pin, its 6 pin connects power Vcc, ground connection behind its output terminal 5 pin series capacitance C8, the loudspeaker Y1, form filtering circuit in the two ends of loudspeaker Y1 one group of resistance R that is in series 15 in parallel, capacitor C 9, be used to improve tonequality.

Shown in Fig. 4 b, described signal switching circuit 109 is made up of the 2nd group of switch J1K2 of relay J 1.This circuit is used for the switching of alarm signal and broadcast singal and designs.As: when pressing the wherein arbitrary alarm signal operating key of K1 to K4, relay J 1 not adhesive, normally closed contact and the central contact of the 2nd group of switch J1K2 of relay J 1 are in on-state, alarm signal is from IC8 output terminal J3-15 pin output, and the 2nd group of switch J1K2 by relay J 1 receives alarm signal output plughole 518.When pressing broadcasting categories within police force operating key K5, relay J 1 adhesive, broadcast singal is received alarm signal output plughole 518 by the 2nd group of switch J1K2 of relay J 1, broadcast singal is delivered to the L channel input end L of modulator 112.

Shown in Fig. 4 b, when disaster some bursts, not clear and definite alerting signal kind or that need explain is at once passed through audio alert, need the grafting microphone to play.The utility model is provided with broadcast circuit 108, and this broadcast circuit 108 comprises: audio amplifier circuit 122, relay J 1, triode BG.Wherein connect the base stage of triode BG behind the output terminal P19 of the single-chip microcomputer IC1 end resistance in series R7, its grounded collector is succeeded the control end of electrical equipment J1, the backward dioded D2 in parallel at relay J 1 two ends between its emitter and the power Vcc; The central point contact of the 1st group of switch J1K1 of relay J 1 connects power input 6 pin of the audio frequency amplification integrated block IC 10 in the audio amplifier circuit 122, the normally closed contact ground connection of relay J 1K1, and the normally opened contact of relay J 1K1 connects power Vcc.

Shown in Fig. 4 b, described audio amplifier circuit 122 is: connect capacitor C 4 between 1 pin of audio frequency amplification integrated

block IC

10,8 pin, its 2 pin, 4 pin ground connection, ground connection behind its 3 pin series capacitance C3, the microphone jack M, its 5 pin is ground connection behind series capacitance C5, the potentiometer W successively, one group of resistance capacitance C6, R18 that is in series in parallel forms filtering circuit at potentiometer W two ends, is used to improve tonequality.Succeed the 2nd group of switch J1K2 normally opened contact of electrical equipment J1 behind the sliding end series capacitance C7 of potentiometer W.

As shown in Figure 5, described terminating machine 605 is machine boxes 606 that have signal input part 603, penetrable sound hole 601, supply hub 604, is provided with to receive and send people's air-defence warning's terminating circuit 102 in above-mentioned machine box 606.

As shown in Figure 3, described terminating circuit 102 comprises: power circuit 115, receiving circuit 116, instruction demoding circuit 117, electronic switching circuit 118, squelch circuit 121, audio amplifier circuit 119, loudspeaker 120.Wherein power circuit 115 connects receiving circuit 116, instruction demoding circuit 117, electronic switching circuit 118 respectively; Connect the input end of audio amplifier circuit 119 behind the receiving circuit 116 connection squelch circuits 121; The output terminal of electronic switching circuit 118 connects the power input of squelch circuit 121 and audio amplifier circuit 119 respectively; The unlatching data output end of instruction demoding circuit 117 connects the switch control end of squelch circuit 121; Audio amplifier circuit 119 output termination loudspeakers 120.

As shown in Figure 7, described power circuit 115 is: the input termination 220V AC power of transformer 401, its output termination bridge rectifier circuit 402, the output terminal of this bridge rectifier circuit 402 two circuit in parallel, article one, be that mu balanced circuit 403 connects the power supply switch circuit of being made up of relay J 2 404, its another circuit is the positive pole that charging circuit 405 connects battery 406, also connects a voltage detecting circuit 407 that detects battery 406 voltages on the positive pole of battery 406.

Succeed the

control end

4,5 of electrical equipment J2 between the output terminal of described mu balanced circuit 403 and the ground, the normally opened contact 1 of relay J 2 connects mu balanced circuit 403 output terminals, the normally closed contact 2 of relay J 2 connects the positive pole of battery 406, the central contact 3 of relay J 2 connects the end of power switch S, and the other end of power switch S is as the output terminal Vcc ' of power circuit 115;

Described charging circuit 405 output terminals connect the positive pole of voltage detecting circuit 407 and battery 406 respectively.

Described voltage detecting circuit 407 is: input end 2 pin of voltage detecting ic chip 16 connect the positive pole of battery 406, connecting resistance R23 and LED 7 between its input end 2 pin and output terminal 1 pin, its 3 pin ground connection.Described LED 7 is battery 406 voltage detecting pilot lamp, and when battery 406 voltages hanged down to setting value, LED 7 was bright, and prompting battery 406 needs charging; Resistance R 23 is current-limiting resistances of LED 7.

As shown in Figure 6, described receiving circuit 116 is: input end 1 pin that connects FM reception ic chip 11 behind the signal input part 603 series capacitance C14, its 18 pin meets the power switch S that is connected with power output end Vcc ', its 16 pin ground connection, its 15 pin connects 14 pin of the decoding integrated package IC12 in the instruction demoding circuit 117, connects 4 pin, 8 pin of the input end of four two-way switch ic chips 14 in the squelch circuit 121 behind its 13 pin resistance in series R22.

As shown in Figure 6, described instruction demoding circuit 117 is: 18 pin of decoding integrated package IC12 connect power supply and open S, its 9 pin ground connection, connecting resistance R19 between its 15 pin and 16 pin, its data output end 10 pin connect control end 5 pin of electronic switch ic chip 13 in the electronic switching circuit 118, and its 17 pin connects 13 pin, 5 pin of four two-way switch ic chips, 14 input ends in the squelch circuit 121.

As shown in Figure 6, described electronic switching circuit 118 is: 1 pin of electronic switch ic chip 13 connects power supply and opens S, its 4 pin ground connection, its output terminal 2 pin and power input 14 pin and 6 pin that connect squelch circuit 121 and audio amplifier circuit 119 after 3 pin are connected.

As shown in Figure 6, described squelch circuit 121 is: 7 pin of four two-way switch ic chips 14,2 pin, 3 pin ground connection, after joining, its 1 pin and 6 pin, connect input end 3 pin of audio amplifier circuit 119 sound intermediate frequency amplification integrated block ICs 15 behind its 9 pin series capacitance C20 with 14 pin indirect resistance R20.

As shown in Figure 6, described audio amplifier circuit 119 is: 2 pin of audio frequency amplification integrated block IC 15 and 4 pin ground connection, connect capacitor C 17 between its 1 pin and 8 pin, its output terminal 5 pin series capacitance C18, loudspeaker 120 back ground connection, the resistance R 21 that the two ends parallel connection of loudspeaker 120 is in series, capacitor C 19.

Single-chip microcomputer IC1 of the present utility model and each integrated package all are outsourcing pieces, and its model is respectively: the model of single-chip microcomputer IC1 is AT89S52; The model of six reverser ic chips 2 is CD4069; The model of four two-way switch ic chips 3, IC4 is CD4066; The model of coding integrated package IC5 and coding integrated package IC6 is ED5026; The model of audio frequency amplification integrated block IC 7 is LM386; IC8 is general MP3 development board; Decode the frequently model of integrated package IC9 of double-tone is MT8870; The model of audio frequency amplification integrated block IC 10 is LM386; The model of FM reception ic chip 11 is MC3362; The model of instruction decoding integrated package IC12 is ED5027; The model of electronic switch ic chip 13 is TWH8778; The model of four two-way switch ic chips 14 is CD4066; The model of audio frequency amplification integrated block IC 15 is LM386; The model of voltage detecting ic chip 16 is AN051.

The different alarm signals that relate in the utility model mainly comprise: alarm signal in advance, Emergency Alert Message, the signal of sounding all clear, voice siren, broadcast warning signal.Above-mentioned signal is respectively with categories within police force operating key K1, K2, K3, K4, K5 control, wherein: K1 is that categories within police force operating key, K2 are that urgent categories within police force operating key, K3 are that releasing categories within police force operating key, K4 are that voice categories within police force operating key, K5 are that broadcasting categories within police force operating key, K6 are stop keys in advance.The pilot lamp of K1, K2, K3, K4, K5, K6 correspondence is respectively: LED1, LED2, LED3, LED4, LED6, LED5.

Above-mentioned each operating key and pilot lamp are arranged on central controller 516 cabinets, also are provided with power switch 515 on central controller 516 cabinets; Alarm signal output plughole 518; Instruction output plughole 517.Wherein alarm signal output plughole 518 usefulness cables meet the L channel input end L of modulator 112, and instruction output plughole 517 usefulness cables meet the R channel input end R of modulator 112; The 519th, supply hub; M is a microphone jack.

The machine box 606 of terminating machine 605 of the present utility model is provided with penetrable sound hole 601; LED 7, this LED 7 are voltage detecting pilot lamp of terminating machine 605 internal cells 406; Signal input part 603; Supply hub 604; Power switch S.

Be example explanation the utility model course of work to provide alarm signal in advance below:

As Fig. 1, Fig. 2, Fig. 8, Fig. 9, shown in Figure 10, at first press power switch 515, make central control circuit 101 energized in the central controller 516.

Trigger categories within police force operating key K1 in advance, the P07 pin output low level of single-chip microcomputer IC1, alarm pilot lamp LED1 is bright in advance.

Because different categories within police force operating key K1-K5 are programmed to interlocking, after categories within police force operating key K1 triggered in advance, other categories within police force operating key operation was invalid, after having only alarm follow procedure granting in advance to finish or artificially triggering stop key K6, can operate other categories within police force operating key.

Be triggered as working as K1 among Fig. 8, the P12 of single-chip microcomputer, P14, P07 hold shown in the output waveform when promptly providing alarm signal in advance, at this moment, 2 intervals of P12 end output of single-chip microcomputer IC1 0.5 second, its width is 1 second high level pulse, oppositely becoming the 0.5 second width in 2 intervals through IC2 is 1 second low level pulse, and control end 14 pin of IC5 also are low level, and the 17 pin output of this low level control IC5 2 duration are 1 second encoded data stream.When control end 14 pin of IC5 are high level, stop output.It is in order to ensure terminal reliable reception steering order that the utility model design sends 2 encoded data streams.

Because of 17 pin of IC5 link to each other with 3 pin of IC4.Control end 5 pin of IC4 and the P12 of IC1 end join, and when P12 output high level, 3 pin of IC4,4 pin are connected.The encoded data stream of 17 pin of IC5 output from 3 pin of IC4 enter its 4 pin output by its instruction output plughole 517 after, meet the R channel input end R of modulator 112 with cable.Encoded data stream is modulated the carrier wave of modulator 112, and the carrier frequency after the modulation is delivered to user's signal accessory power outlet 114 by cable TV network 113.Said process is delivered to user side with the open command signal.

Behind 21 second high level of P12 end output of single-chip microcomputer IC1, then the P14 of IC1 end is exported 1 high level pulse of 0.5 second, and the P14 end of IC1 links to each other with 13 pin of IC3, and when 13 pin of IC3 were high level, 1,2 pin of IC3 were connected.1,2 pin of IC3 are connected on the broadcast button ab of IC8, and the ab keyed jointing of IC8 is logical to be equivalent to this key of manual activation, and IC8 will access its corresponding data (i.e. alarm signal in advance) and play.Said process is finished the granting of alarm signal in advance.

Automatic stopped process to alarm signal describes below.

After playing end in the time that above-mentioned alarm signal is in advance being set, because storing 1 second double-audio signal in IC8 in advance is connected on alarm signal afterbody in advance, this signal is received by IC9 and decodes, 1 second high level of 15 pin output at IC9,15 pin of IC9 are connected with 5 pin of IC2, through reverse 1 second low level of 6 pin output from IC2, this low level is isolated through diode D1, the control end P06 level that stops of IC1 is dragged down, this signal is identical with artificial triggering stop key K6, so the P11 of IC1 end output low level, it is bright to stop pilot lamp LED5.At this moment, the output waveform of single-chip microcomputer IC1 as shown in Figure 9,0.5 second high level of the P18 of single-chip microcomputer IC1 end output, the P18 end of IC1 links to each other with 13 pin of IC4, the 13 pin high level of IC4 are controlled its 1 pin, 2 pin are connected, and 1 pin of IC4,2 pin are connected on the xy that stops key of IC8, so IC8 quits work.As shown in Figure 9,2 of the P13 of IC1 end outputs meanwhile are spaced apart 0.5 second, width is 1 second a high level, the P13 end of IC1 joins with 3 pin of IC2, oppositely be spaced apart 0.5 second through IC2 from its 2 of 4 pin output, width is 1 second a low level, 4 pin connection closed instruction circuit IC6 control ends, 14 pin of IC2,2 closing control director data streams of the 17 pin output of IC6, this data stream is by the 9 pin input of IC4, its 8 pin meets the R channel input end R that modulator 112 is sent in instruction behind the output plughole 517, and carrier wave is modulated, and the carrier frequency after the modulation is delivered to user side signal accessory power outlet 114 by cable TV network 113.Said process is finished the transmission of cut-off command.

Above-mentioned is the overall process that alarm signal is in advance provided.

Below terminating machine 605 inner terminating circuit 102 courses of work that are provided with are described.

Terminating machine 605 signal input parts 603 are received the high-frequency carrier signal that central controller 516 central control circuits 101 are sent here, 1 pin of the IC11 of the receiving circuit 116 that is coupled to through capacitor C 14, through the inner mixing of IC11, buffering, filtering, amplitude limit amplify, after the frequency demodulation from its 13 pin output audio signal, from its 15 pin outputting data signals.

Data output end 15 pin of IC11 link to each other with input end 14 pin of IC12.When geocoding that solves as IC12 and the geocoding of self are in full accord, one of 17 pin of IC12 output and IC5 transmission identical high level of coded order time, the data of 10 pin to the 13 pin output latchs of IC12, the connected mode of this circuit makes the 10 pin output high level of IC12, input end 5 pin of coupled IC13 also are high level, when the 5 pin high level of IC13,1 pin of IC13 and 2 pin, 3 pin are connected, 2 pin of IC13,3 pin join with power input 6 pin and 14 pin of IC15 and IC14 respectively, make IC15, IC14 get electric work.

Export from 13 pin of IC11 by the alarm signal in advance that central control circuit 101 is sent here, send into 8 pin and 4 pin of IC14 through resistance R 22,1 pin of IC14,6 pin are to being connected to resistance R 20 between the power supply, resistance R 20 of the present utility model is a pull-up resistor, its objective is for 1 pin, the 6 pin current potentials of IC14 are drawn high.When 1 pin of IC14, when 6 pin are high level, control its 8 pin, the connection of 9 pin, this leads directly to alarm signal in advance, and alarm signal in advance enters the output of 9 pin from 8 pin of IC14.Alarm signal in advance is coupled to 3 pin of audio frequency amplification integrated block IC 15 through capacitor C 20.Preliminary election alarm signal after IC15 amplifies is exported from 5 pin, is coupled to loudspeaker 120 by capacitor C 18, converts the electrical signal to voice signal by loudspeaker 120.

After alarm signal granting in advance finishes, and then be the closing control instruction of transmitting by central controller 516, its 10 pin output low level after the IC12 decoding, IC13 5 pin also become low level, 1 pin of IC13 and 2 pin, 3 pin disconnect, IC14, IC15 dead electricity are ready alarm terminal.Thereby finish the reception and the distribution process of once alarm signal in advance.

IC14 is a squelch circuit, and its course of work is: when receiving circuit 116 receives central controller 516 transmission instructions, and the 15 pin output order encoded data streams of IC11, what 13 pin of IC11 were exported is the noise that encoded data stream produces.For preventing that the steering order data stream from entering audio amplifier circuit 119 and making a noise at output terminal, in the output of steering order data stream, the 13 pin output signals of IC1 are cut off by IC14.When IC12 receives instruction, the 17 pin output high level of IC12,13 pin of IC14 and its 5 pin also are high level, switch 1 pin that 13 pin of IC14 are controlled, 2 pin are connected, the 6 pin level of IC14 are dragged down, 8 pin that 6 pin of IC14 are controlled and 9 pin disconnect, and the noise signal that is transmitted by 13 pin of IC11 can not be sent into IC15 and amplify; At the same time, 5 pin of IC14 also are high level, and 3 pin that 5 pin of IC14 are controlled, 4 pin are connected, and with the signal ground of 8 pin, guarantee that further noise signal is not admitted to audio amplifier circuit, thereby play the noise elimination effect.

Power circuit 115 in the described terminating circuit 102 is the automatic feed circuit of being made up of transformer 401, bridge rectifier circuit 402, mu balanced circuit 403, charging circuit 405, power supply switch circuit 404, voltage detecting circuit 407 of changing of automatic charging, alternating current-direct current.

The course of work of power circuit 115 is as follows:

When Alternating Current Power Supply, the DC voltage one tunnel of bridge rectifier circuit 402 outputs is through mu balanced circuit 403 voltage stabilizings and output, relay J 2 adhesives in the power supply switch circuit 404, the normally opened contact 1 of relay J 2 and central contact 3 are connected, mu balanced circuit 403 output galvanic currents are pressed, and power to terminating circuit 102 through the control of power switch S.At this moment, its normally closed contact 2 and central contact 3 disconnect, and battery 406 stops to circuit supply.

To battery charge, after battery 406 was full of, charging circuit 405 stopped charging automatically through charging circuit 405 on another road of bridge rectifier circuit 402 output dc voltages.

When no alternating current, charging circuit 405, mu balanced circuit 403 quit work, and the normally opened contact 1 of relay J 2 and central contact 3 disconnect, and its normally closed contact 2 and central contact 3 are connected, and battery 406 is powered to terminating circuit 102 through the control of power switch S.

The positive pole of 2 pin of IC16 and battery 406 joins in the voltage detecting circuit 407, and when battery 406 voltages dropped to setting voltage, pilot lamp LED7 was bright, prompting battery 406 electric weight deficiencies.

Figure 10 is a single-chip microcomputer IC1 original state reproduced pulse oscillogram, that is, and and the oscillogram when not triggering any key after circuit powers up.As shown in the figure, IC1's is high level as lower end P07, P08, P09, POP10, P11, P19; IC1's is low level as lower end P12, P13, P14, P15, P16, P17, P18.

Fig. 8 is a single-chip microcomputer IC1 reproduced pulse oscillogram after operating key K1 to K5 is triggered.That is, Fig. 8 is the pairing output waveform figure of respectively holding of single-chip microcomputer IC1 when triggering different categories within police force key.As shown in the figure, when triggering different categories within police force key K1 to K5, the waveform of P12 end output is all identical, promptly trigger arbitrary categories within police force signal key and all need to start open command circuit 105, open command is sent into terminal, different is at 2 width of P12 end output is 1 second, be spaced apart 0.5 second pulse after, and then be the P14 end, the P15 end, the P16 end, the P17 end is exported a pulse of 0.5 second respectively, control switch control end 13 pin of IC3 respectively, 5 pin, 6 pin, 12 pin, the output terminal of IC3 is controlled the ab of IC8 respectively, cd, ef, mn makes the different alarm signal of alarm signal source circuit IC8 output.Because the signal during broadcasting does not need to control IC8 from microphone, thus after triggering broadcasting categories within police force operating key K5, low level of P19 end output of IC1, it is bright that this low level is controlled the broadcasting pilot lamp on the one hand, controls broadcast circuit on the other hand and enter duty.

Fig. 9 is a single-chip microcomputer IC1 reproduced pulse oscillogram after stop key K6 is triggered.When K6 is triggered, 2 width of the P13 of IC1 output are to be spaced apart 0.5 second pulse in 1 second, and the duty through IC2 oppositely removes to control the out code circuit makes out code send into terminal.The P18 of IC1 exports 0.5 second high level simultaneously, removes to control switch control end 13 pin of IC4, and the xy of its output terminal 1 pin 2 foot control system IC8 quits work IC8.

Claims

1. one kind is utilized the vehicular people's air defense indoor warning of cable TV network device, and this people's air defense indoor warning device comprises: cable TV network (113); Modulator (112) is characterized in that, also comprises: the terminating machine (605) that receives and send the terminating circuit (102) of people's air-defence warning's signal is equipped with in central controller (516), inside that the central control circuit (101) of providing people's air-defence warning's signal is equipped with in inside; The output terminal of described central control circuit (101) connects the input end of modulation (112), the output terminal of modulator (112) connects the input end of cable TV network (113), and the frequency modulation socket FM of the signal accessory power outlet (114) of cable TV network (113) user side connects the signal input part (603) of the interior terminating circuit of terminating machine (605) (102) by cable.

2. according to the people's air defense indoor warning device described in the claim 1, it is characterized in that described central control circuit (101) comprising: single-chip microcomputer IC1 input end connects the control circuit (104) of different categories within police force operating key K1 to K5 and stop key K6, the open command circuit (105) of control terminal machine (102) work, the alarm signal source circuit (110) that stores alerting signal and shutdown signal translation circuit (111), the out-of-work out code circuit of control terminal machine (102) (107), uses the broadcast circuit (108) of broadcasting pronunciation; Wherein, connect the input end of modulator (112) behind the open command output terminal P12 of single-chip microcomputer IC1 connection open command circuit (105) and the electronic switching circuit (106); Connect the input end of modulator (112) behind the halt instruction output terminal P13 connection closed instruction circuit (107) of single-chip microcomputer IC1 and the electronic switching circuit (106); The broadcasting instructions output terminal P19 of single-chip microcomputer IC1 connects the input end of broadcast circuit (108) control broadcast state, and the signal output part of broadcast circuit (108) connects the input end that connects modulator (112) behind the signal switching circuit (109); The receive a crime report Play Control end of the number of notifying source circuit (110) of the alarm command control output end P14 to P17 of single-chip microcomputer IC1 connects the input end of modulator (112) behind the output termination signal switching circuit (109) of alarm signal source circuit (110); What meet single-chip microcomputer IC1 behind the shutdown signal of alarm signal source circuit (110) the output termination shutdown signal translation circuit (111) stops control end P06.

3. according to the people's air defense indoor warning device described in claim 1 or 2, it is characterized in that described central controller (516) is provided with: be the different categories within police force operating key K1 to K5 of interlocking and stop key K6, instruction output plughole (517), alarm signal output plughole (518), microphone jack (M), power switch (515), supply hub (519) each other; Wherein: K1 is that categories within police force operating key, K2 are that urgent categories within police force operating key, K3 are that releasing categories within police force operating key, K4 are that voice categories within police force operating key, K5 are broadcasting categories within police force operating keys in advance; P07 to the P11 end of described single-chip microcomputer IC1 and P19 end connect the negative terminal of pilot lamp LED1 to LED6 respectively, the anode of pilot lamp LED1 to LED6 is connecting resistance R1 to R6 respectively, another termination power Vcc of resistance R 1 to R6 is connected a pilot lamp LED10 who is in series and resistance R 24 between power Vcc and ground.

4. according to the people's air defense indoor warning device described in the claim 2, it is characterized in that described open command circuit (105) comprising: six reverser ic chips 2, coding integrated package IC5 and four two-way switch ic chips 4; Input end 1 pin of six reverser ic chips 2, the 3 pin P12 end, the P13 end that are connected single-chip microcomputer IC1 wherein, its 14 pin, 7 pin connect respectively power Vcc,, its output terminal 2 pin and 4 pin connect 14 pin of the coding integrated package IC6 of coding integrated package IC5 and out code circuit (107) respectively; 18 pin, 10 pin of coding integrated package IC5 connect power Vcc, its 9 pin and 11 pin to 13 pin ground connection, and its 17 pin connects 3 pin of four two-way switch ic chips 4, connecting resistance R8 between its 15 pin and 16 pin;

Described out code circuit (107) comprising: six reverser ic chips 2, coding integrated package IC6 and four two-way switch ic chips 4; 18 pin of integrated package IC6 of wherein encoding connect power Vcc, its 9 pin to 13 pin ground connection, and its 17 pin connects 9 pin of four two-way switch ic chips 4, connecting resistance R11 between its 15 pin and 16 pin, its 1 pin to 8 pin is a coding side; 14 pin of four two-way switch ic chips 4,7 pin connect respectively power Vcc,, its 5 pin, 6 pin, 13 pin connect P12 end, P13 end, the P18 end of single-chip microcomputer IC1, its 1 pin and 2 pin are connected the xy end with MP3 development board IC8, after its output terminal 4 pin and 8 pin connect instruction output plughole (517), meet the R channel input end R of modulator (112) with cable.

5. according to the people's air defense indoor warning device described in the claim 2, it is characterized in that described alarm signal source circuit (110) comprising: four two-way switch ic chips 3 and general MP3 development board IC8; 13 pin of four two-way switch ic chips 3 wherein, 5 pin, 6 pin, 12 pin connect the P14 end of single-chip microcomputer IC1 respectively, the P15 end, the P16 end, the P17 end, its 14 pin and 7 pin connect power Vcc and ground respectively, its 1 pin to 4 pin and 8 pin to 11 pin are connected four groups of gauge tap ab with MP3 development board IC8 respectively, cd, ef, the J4-4 pin of the general MP3 development board of mn IC8 and J4-5 pin connect power Vcc and ground respectively, connect the normally closed contact of the 2nd group of switch J1K2 of the relay J 1 in the signal switching circuit (109) behind its alarm signal output terminal J3-15 pin series capacitance C12, the central contact of the 2nd group of switch J1K2 of relay J 1 is received a crime report behind the number of the notifying output plughole (518), meet the L channel input end L of modulator (112), its shutdown signal output terminal J3-17 pin resistance in series R16 with cable, connect decode frequently input end 2 pin of integrated package IC9 of double-tone in the shutdown signal translation circuit (111) after the capacitor C 13;

Described shutdown signal translation circuit (111) comprising: double-tone decode frequently one of them reverser and diode D1 in integrated package IC9, the six reverser ic chips 2; Wherein decode frequently 18 pin, 10 pin of integrated package IC9 of double-tone connect power Vcc, its 5 pin, 6 pin, 9 pin ground connection, connecting resistance R17 between its input end 2 pin and 3 pin, its 1 pin is connected with 4 pin, meet quartz crystal X between its 7 pin and 8 pin, its 15 pin connects 5 pin of six reverser ic chips 2; What meet single-chip microcomputer IC1 behind the output terminal 6 pin series diode D1 of six reverser ic chips 2 stops control end P06.

6. according to the people's air defense indoor warning device described in the claim 5, it is characterized in that, described general MP3 development board IC8 output terminal J3-15 pin also connects an alarm monitoring circuit (201), this alarm monitoring circuit (201) is: connect the pin with MP3 development board IC8 output terminal J3-15 behind the 3 pin series capacitance C11 of audio frequency amplification integrated block IC 7 input ends, its 2 pin, 4 pin ground connection, its 1 pin, connect capacitor C 10 between 8 pin, its 6 pin connects power Vcc, its output terminal 5 pin series capacitance C8, ground connection behind the loudspeaker Y1 is in the two ends of loudspeaker Y1 one group of resistance R that is in series 15 in parallel, capacitor C 9.

7. according to the people's air defense indoor warning device described in the claim 2, it is characterized in that described signal switching circuit (109) is made up of the 2nd group of switch J1K2 of relay J 1; Described broadcast circuit (108) comprising: audio amplifier circuit (122), relay J 1, triode BG; Wherein connect the base stage of triode BG behind the output terminal P19 of the single-chip microcomputer IC1 end resistance in series R7, its grounded collector is succeeded the control end of electrical equipment J1, the backward dioded D2 in parallel at relay J 1 two ends between its emitter and the power Vcc; The central point contact of the 1st group of switch J1K1 of relay J 1 connects power input 6 pin of the audio frequency amplification integrated block IC 10 in the audio amplifier circuit (122), the normally closed contact ground connection of relay J 1K1, and the normally opened contact of relay J 1K1 connects power Vcc; Wherein audio amplifier circuit (122) is: connect capacitor C 4 between 1 pin of audio frequency amplification integrated block IC 10,8 pin, its 2 pin, 4 pin ground connection, its 3 pin series capacitance C3, microphone jack (M) back ground connection, its 5 pin is ground connection behind series capacitance C5, the potentiometer W successively, at one group of resistance capacitance C6, R18 that is in series of potentiometer W two ends parallel connection, succeed the 2nd group of switch J1K2 normally opened contact of electrical equipment J1 behind the sliding end series capacitance C7 of potentiometer W.

8. according to the people's air defense indoor warning device described in the claim 1, it is characterized in that, described terminating machine (605) is a machine box (606) that has signal input part (603), penetrable sound hole (601), supply hub (604), be provided with reception and send people's air-defence warning's terminating circuit (102) in machine box (606), this terminating circuit (102) comprising: power circuit (115), receiving circuit (116), instruction demoding circuit (117), electronic switching circuit (118), squelch circuit (121), audio amplifier circuit (119), loudspeaker (120); Wherein power circuit (115) connects receiving circuit (116), instruction demoding circuit (117), electronic switching circuit (118) respectively; Connect the input end of audio amplifier circuit (119) behind receiving circuit (116) the connection squelch circuit (121); The output terminal of electronic switching circuit (118) connects the power input of squelch circuit (121) and audio amplifier circuit (119) respectively; The unlatching data output end of instruction demoding circuit (117) connects the switch control end of squelch circuit (121); Audio amplifier circuit (119) output termination loudspeaker (120).

9. the people's air defense indoor warning device described in according to Claim 8, it is characterized in that, described power circuit (115) is: the input termination 220V AC power of transformer (401), it exports termination bridge rectifier circuit (402), the output terminal of this bridge rectifier circuit (402) two circuit in parallel, article one, be that mu balanced circuit (403) connects the power supply switch circuit of being made up of relay J 2 (404), its another circuit is the positive pole that charging circuit (405) connects battery (406), also connects a voltage detecting circuit (407) that detects battery (406) voltage on the positive pole of battery (406);

Succeed the control end (4,5) of electrical equipment J2 between the output terminal of described mu balanced circuit (403) and the ground, the normally opened contact 1 of relay J 2 connects mu balanced circuit (403) output terminal, the normally closed contact 2 of relay J 2 connects the positive pole of battery (406), the central contact 3 of relay J 2 connects the end of power switch S, and the other end of power switch S is as the output terminal Vcc ' of power circuit (115);

Described charging circuit (405) output terminal connects the positive pole of voltage detecting circuit (407) and battery (406) respectively; This voltage detecting circuit (407) is: input end 2 pin of voltage detecting ic chip 16 connect the positive pole of battery (406), connecting resistance R23 and LED 7 between its input end 2 pin and output terminal 1 pin, its 3 pin ground connection.

10. the people's air defense indoor warning device described in according to Claim 8, it is characterized in that, described receiving circuit (116) is: input end 1 pin that connects FM reception ic chip 11 behind signal input part (603) the series capacitance C14, its 18 pin meets the power switch S that is connected with power output end Vcc ', its 16 pin ground connection, its 15 pin connects 14 pin of the decoding integrated package IC12 in the instruction demoding circuit (117), connects 4 pin, 8 pin of the input end of four two-way switch ic chips 14 in the squelch circuit (121) behind its 13 pin resistance in series R22;

Described instruction demoding circuit (117) is: 18 pin of decoding integrated package IC12 connect power supply and open S, its 9 pin ground connection, connecting resistance R19 between its 15 pin and 16 pin, its data output end 10 pin connect control end 5 pin of electronic switch ic chip 13 in the electronic switching circuit (118), and its 17 pin connects 13 pin, 5 pin of four two-way switch ic chips, 14 input ends in the squelch circuit (121);

Described electronic switching circuit (118) is: 1 pin of electronic switch ic chip 13 connects power supply and opens S, its 4 pin ground connection, its 2 pin and power input 14 pin and 6 pin that connect squelch circuit (121) and audio amplifier circuit (119) after 3 pin are connected;

Described squelch circuit (121) is: 7 pin of four two-way switch ic chips 14,2 pin, 3 pin ground connection, after joining, its 1 pin and 6 pin, connect input end 3 pin of audio amplifier circuit (119) sound intermediate frequency amplification integrated block IC 15 behind its 9 pin series capacitance C20 with 14 pin indirect resistance R20;

Described audio amplifier circuit (119) is: 2 pin of audio frequency amplification integrated block IC 15 and 4 pin ground connection, connect capacitor C 17 between its 1 pin and 8 pin, its output terminal 5 pin series capacitance C18, loudspeaker (120) back ground connection, the resistance R 21 that the two ends parallel connection of loudspeaker (120) is in series, capacitor C 19.