CN87105124A - Multifunction alarm without wire - Google Patents

Abstract

The invention belongs to burglar alarm, send part and monitor that receiving the display part forms by surveying.It is to adopt the microwave Doppler device to realize contact-free detection, and it transmits control, monitoring signal is to utilize the mode of electric supply line loading wave to finish.Advantages such as this warning utensil has antijamming capability strong, and is easy to use, and security performance is strong, safe, reliable are closed daytime automatically, open automatically at dusk.

Description

The invention belongs to burglar alarm.

Present bank, the burglar alarm that important events such as commercial mansion are used mainly contains wire break alarm, infrared, ultrasonic alarm.Constituting all needs between the sensor of alarm and the controller to couple together the transmission control signal with a large amount of leads.The alarm that has has utilized wireless station's emission form to report to the police, and reporting to the police like this is subject to other electromagnetic influence, produces false alarm, does not report to the police, and inconvenience is installed, and reliability, security are not high.

The purpose of this invention is to provide a kind of contact-free detection, the no signal transmission lines does not have the emission receiving antenna, can report to the police simultaneously, monitor, automatically the alarm of open and close.

The present invention shows that by surveying to send and monitor to receive the two large divisions forms.Survey transmission part (transmitter) and comprise microwave remote sensor (1), prime amplifier (2), driving amplifier (3), on-off circuit (4), high frequency oscillator (5), carrier-frequency amplifier (6), LC coupling mechanism (7), light-controlled switching circuit (8), coded audio oscillator (9), modulator (10), alert audio oscillator (11) (referring to Fig. 1), when the dusk natural lighting is attenuated to a certain degree, the complete machine power supply is connected in the light-controlled switching circuit that is adopted (8) conducting.Microwave remote sensor (1) is to the electromagnetic wave signal that is detected spatial emission 8～10.8GHZ, high frequency oscillator (5) simultaneously, carrier-frequency amplifier (6), modulator (10), microphone SH work.Microphone SH receives sound signal after modulator (10) send high frequency oscillator (5) (shaking of high frequency oscillator is 320KHZ frequently) after amplifying, the voltage that high frequency oscillator (5) is loaded with sound signal amplifies through carrier-frequency amplifier (6), is loaded on 220 volts of power leads by LC coupling mechanism (7) output then.What this moment, the carrier frequency output terminal was exported is the high-frequency current that is loaded with the audio select signal.When if the electromagnetic wave signal that microwave remote sensor (1) sends detects the echoed signal of mobile object reflection, because the echoed signal frequency of reflection is not equal to former transmission frequency, sensor output signal is after amplifying, and pull switch circuit (4) is worked.Disconnect the circuit that microphone SH is connected with modulator (10), connect coded audio oscillator (9) and alert audio oscillator (11).Coded audio oscillator (9) produces the sound signal of 300-2000HZ to modulator (10), is loaded into the input end of high frequency oscillator (5) then, and audio amplifier (6) input end is carried in its output, through LC coupling mechanism (7), and coupling output.At this moment, the output of carrier frequency output terminal is loaded with the high-frequency carrier signal of coded audio, and high-frequency carrier signal transfers to and monitors that receiving unit (receiver) sends warning and shows the site of an accident.Monitor that receiving unit (referring to Fig. 2) comprises that LC send loop (12) frequently, height is put wave detector (13), phase-locked oscilaltor (14), low-frequency amplifier (15), low pass frequency-selecting demoder (16), No. 1 actuator (17), No. 2 actuators (18), No. 3 actuators (19), No. 4 actuators (20), warning oscillator (21), when the carrier frequency input end receive survey the alerting signal that the sending part branch provides after, signal is delivered to height through LC frequency-selective circuit (12) and is put wave detector (13) and phase-locked oscilaltor (14), if signal intensity, frequency meets phase-locked oscilaltor (14) turning-on voltage, phase-locked oscilaltor (14) work, signal send low pass frequency-selecting demoder (16) frequency-selecting to handle after low-frequency amplifier (15) amplifies, send corresponding actuator (promptly 1 then to, 2,3, No. 4 actuators) action, show the field location of meeting accident, the oscillator (10) of reporting to the police is simultaneously reported to the police.Monitor as needs, loudspeaker is connected to low-frequency amplifier (15).

The present invention adopts the microwave Doppler device to realize contact-free detection.Transmission control, monitoring signal are that the mode of utilizing electric supply line loading wave is finished (promptly power to complete machine by the alternating current circuit, pass through FM carrier wave transmission control signal and monitoring signal by the alternating current circuit again).Survey the transmission part and adopt modulation to add coding circuit, receiving unit adopts phase-locked loop, and decoding circuit makes it control signal and monitoring signal, goes the same way with the carrier frequency transmission and receive to be independent of each other.

This warning utensil has antijamming capability strong, and is easy to use, strong security, advantage such as safe, reliable.Automatically close daytime, open automatically at dusk, and its circuit design advanced person, reasonable, and the alternating current-direct current auto-conversion function is arranged, do not need to establish in addition transmission line.

Description of drawings:

Fig. 1 is a detection sending part parallel circuit block scheme of the present invention.

Fig. 2 is a supervision receiving unit circuit block diagram of the present invention.

Fig. 3 is a detection sending part parallel circuit schematic diagram of the present invention.

Fig. 4 is supervision receiving unit circuit theory diagrams of the present invention.

Fig. 5 is that detection of the present invention sends part (transmitter) outside drawing.

Fig. 6 is supervision receiving unit of the present invention (receiver) outside drawing.

Fig. 7 is a detecting transmitter structural representation of the present invention.

Fig. 8 is a warning receiver structural representation of the present invention.

DX is the microwave Doppler module among Fig. 3, IC ₁, IC ₂Be integrated amplifier, IC ₃Be integrated regulator, IC ₄Be integrated oscillator, IC ₅Be integrated trigger, D ₁Be light emitting diode, BG ₃Be phototriode, BG ₁～BG ₈Be silicon triode, BG ₉Be unijunction transistor, B ₁Be power transformer, B ₂Be high-frequency transformer, W ₁, W ₂, W ₃Be potentiometer, R ₃₅, R ₄₆For adjusting resistance.

IC among Fig. 4 ₆For height is put detection integrated circuit, IC ₇Be integrated oscillator circuit, IC ₈Be integrated power amplifier, IC ₉Be integrated four discharge far away roads, BG ₁₅～BG ₁₉Be silicon triode, IG ₁₀Be time-base integrated circuit, ZD ₁～ZD ₄Be signal lamp, B ₃Be high-frequency transformer, B ₄Be power transformer.

The front panel of Fig. 5 is provided with photoelectrical coupler (22), test display (23).The rear panel of Fig. 6 is provided with distance and adjusts potentiometer knob (24), external connection battery binding post (25), external loudspeaker binding post (26), the binding post (27) of connection manual power switch.The front panel of Fig. 7 is provided with power switch (28), power light (29), report to the police and monitor selector switch (30), nixie display (31), the warning on each road interrupted selector switch (32) of yowling, external power selection switch (33) in the machine, loudspeaker sound window (34) is monitored Headphone Volume Control (35).

Detection of the present invention sends part can four parts monitor the supporting use of receiving unit with one one simultaneously.The detecting transmitter detection area can be at 0～80m ²Interior adjustable, the carrier wave transmitting range is at same power supply phase line Nei Keda 1000m.Surveying and sending part is to be that main element constitutes microwave remote sensor (1) with DX, with IC ₁For main element constitutes prime amplifier (2), with IC ₂For main element constitutes driving amplifier (3), with BG ₁, J ₁For main element constitutes on-off circuit (4), with IC ₄For main element constitutes high frequency oscillator (5), with BG ₅, BG ₆For main element constitutes carrier-frequency amplifier (6), with B ₂, C ₃₀, C ₃₁, C ₃₂For main element constitutes LC coupling mechanism (7), with IC ₅, BG ₁₃For main element constitutes light-controlled switching circuit (8), with BG ₇, BG ₈For main element constitutes coding oscillator (9), with BG ₂, BG ₃For main element constitutes modulator (10), with BG ₉, BG ₁₀, BG ₁₁, BG ₁₂For main element constitutes alert audio oscillator (11).Monitor that receiving unit is with B ₃, C ₄₀For main element constitutes LC frequency-selective circuit (12), with IC ₅Height is put, wave detector (13) for main element constitutes, with IC ₆For main element constitutes phase-locked oscilaltor (14), with IC ₇For main element constitutes low-frequency amplifier (15), with IC ₈For main element constitutes low pass frequency-selecting demoder (16), with BG ₁₆, J ₄, BG ₁₇, J ₅, BG ₁₈, J ₆, BG ₁₉, J ₇For main element constitutes No. 1, No. 2, No. 3, No. 4 actuators (i.e. (17), (18), (19), (20)).With IC ₉For main element constitutes warning oscillator (21).

The course of work of the present invention is such, when the detecting transmitter power supply inserts 220 volts of (see figure 3)s, through transformer B ₁Step-down, D ₁₁Rectification gets 12 volts of DC voltage, J ₃Adhesive, normally opened contact J _3-0Connect, send to light-operated circuit.Photoelectric tube BG when by day natural lighting being arranged ₁₃Resistance less, IC ₅The output of triggerless voltage, J ₂Not adhesive, complete machine no-voltage and not working.Change late natural lighting the same day and weakened BG ₁₃Resistance increases, during to certain value, and BG ₁₄Conducting, J ₂Adhesive, normally opened contact J _2-0Connect the power supply of microwave remote sensor (1), prime amplifier (2), driving amplifier (3) on-off circuit (4), high frequency oscillator (5), carrier-frequency amplifier (6), modulator (7) and microphone SH.The DX microwave remote sensor is to being detected the spatial emission electromagnetic wave, and microphone SH monitors the acoustic scene tone signal, and what this moment, carrier frequency was exported is the high-frequency current that contains SH monitoring sound signal.When the electromagnetic wave of DX microwave remote sensor emission, meet the mobile object reflection and produce echo, made its output terminal F output voltage signal give preposition, driving amplifier by the sensor reception, make the BG of on-off circuit ₁Conducting, J ₁Normally opened contact J _1-0BG is connected in adhesive ₇, BG ₈The coded audio oscillator of being formed, the input end of modulator is sent in coded signal output, disconnects the working power of SH, and what carrier frequency was exported is the high-frequency current that is loaded with coded signal, alert audio oscillator work simultaneously.When having a power failure because J ₃The winding voltage of losing the job, J _3-1Be in normally closedly, connected DC automatically ₁₂Volt electric current, machine are not subjected to have a power failure to be influenced.

The work of warning receiver is (see figure 4), works as power connection, and alternating current is through transformer B ₄Step-down rectifier gets 12 volts of direct currents and gives complete machine, when supporting with it detecting transmitter sends coded signal, (coded signal is 656HZ), this signal is carried on the power lead with high frequency carrier, flows to warning receiver.Through filter coil L ₁, L ₂The elimination clutter is through high-frequency transformer B ₃Be coupled to IC ₅Carry out high frequency amplification, detection, send phase-locked oscilaltor IC then ₆Make its conducting, through IC ₃Carry out the power amplification decoding circuit IC frequently that sends to be elected ₈, select coded signal, make corresponding actuator work, the pilot lamp ZD of nixie display ₁Or ZD ₂, ZD ₃, ZD ₄Ignite accordingly, indicate the field location of meeting accident.Control voltage simultaneously again through switching diode D ₃₀D ₃₁, D ₃₂D ₃₃Give warning oscillator IC ₉, make IC ₉Produce audio oscillation, loudspeaker Y ₂Send chimes of doom.When need are monitored, with K ₁Pushing left position can monitor.

AC-DC conversion switch K among Fig. 4 ₆Be in ac position.Report to the police and monitor selector switch K ₁Be in alarm condition.K ₂, K ₃, K ₄, K ₅Be each road warning selector switch of actuator, can select to yowl or interrupted two kinds of warning forms.CZ ₁, CZ ₂Be external power supply binding post, CZ ₃, CZ ₄Be external control power switch binding post.IC among Fig. 3,4 ₁, IC ₂Model be LM358N, IC ₃Model is WH7812, IC ₄Model is BA567, and the DX model is CL8960, IC ₅Model is NE555, B ₂, B ₃Model is TTF2-1, BG ₁₃Model is 3DU33, BG ₁, BG ₄, BG ₅, BG ₆, BG ₁₄Model is 3DG12, BG ₇, BG ₈, BG ₂, BG ₃Model is 3DG6, BG ₉Model is BT ₃₃, BG ₁₀, BG ₁₁Model is 3AX31,3AX83, BG ₁₂Model is 3DD15, IC ₅Model is RCAH332, IC ₆Model is BA567N, IC ₇Model is JRC4033, IC ₈Model is LM324, IC ₉Model is NE555, BG ₁₅～BG ₁₉Model is 3DG12, D ₇, D ₁₀Model is 2CW56, and W is a potentiometer among the figure, and R is a resistance, and C is an electric capacity, and K is a switch, and CZ is a binding post, and J is a relay, and D is a diode.

Claims (2)

1, a kind of multifunction alarm without wire, it is characterized in that it shows that by surveying to send and monitor to receive the two large divisions forms, survey the sending part branch and comprise microwave remote sensor [1], prime amplifier [2], driving amplifier [3], on-off circuit [4], high frequency oscillator [5], carrier-frequency amplifier [6], LC coupling mechanism [7], light-controlled switching circuit [8], coded audio oscillator [9], modulator [10], alert audio oscillator [11], monitor that receiving the display part comprises LC frequency-selective circuit [12], height is put wave detector [13], phase-locked oscilaltor [14], low-frequency amplifier [15], low pass frequency-selecting demoder [16], actuator [17,18,19,20], warning oscillator [21]; Survey the microwave remote sensor [1] that sends part and launch 8～10 to detected space.The electromagnetic wave signal of 8GHZ detects mobile object, if the echoed signal frequency of reflection is not equal to former transmission frequency, sensor DX output signal, after amplifying, promote on-off circuit [4] work and connect coded audio oscillator [9] and alert audio oscillator [11], coded audio oscillator [9] produces the sound signal of 300～2000HZ to modulator [10], be loaded into the input end of high frequency oscillator [5], audio amplifier [6] input end is carried in output, export through LC coupling mechanism [7], after the carrier frequency input end of receiving unit receives alerting signal, send height to put wave detector [13] and phase-locked oscilaltor [14] through LC frequency-selective circuit [12], low-frequency amplifier [15] send low pass frequency-selecting demoder [16] frequency-selecting after amplifying, send corresponding actuator action then to, transmit control, monitoring signal is to utilize the mode of electric supply line loading wave to finish

Realization is gone the same way and is sent and receive with carrier frequency, and detection sends part and adopted that modulation adds coding circuit, receiving unit has adopted phase-locked loop, decoding circuit.

2, according to the described alarm of claim 1, it is characterized in that surveying on the shell front panel of radiating portion photoelectrical coupler (22) is arranged, test display (23), rear panel is provided with distance and adjusts potentiometer knob (24), external connection battery binding post (25), external loudspeaker binding post (26), the binding post (27) that connects manual power switch, the front panel of receiving unit is provided with power switch (28), power light (29), report to the police and monitor selector switch (30), external power selection switch (33) in nixie display (31), the warning on each road interrupted selector switch (32) of yowling, machine, loudspeaker sound window (34) is monitored Headphone Volume Control (35).

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