CN2243100Y - Alarm - Google Patents

Abstract

The utility model discloses an alarm. The utility model relates to an alarm device, particularly the alarm device which belongs to alarm in the different places. The utility model is composed of a carrier transmitter and a carrier receiver. The improvement of the utility model is that the carrier transmitter and the carrier receiver are connected through civil power lines. The utility model has the advantages that the utility model provides one alarm utilizing the civil power line to transmission signals. The alarm in the different places can be done within definite range in the same power transformer. The utility model has little cost.

Description

Alarm

The utility model relates to alarm apparatus, especially belongs to the alarm apparatus of reporting to the police in the strange land.

Traditional alarm is generally stolen place and directly produces chimes of doom, is difficult to catch the thief then and there, and as stolen place unmanned, owner is worried especially.Some radioalarm equipments are also arranged in recent years, belong to the strange land and report to the police, but be difficult to because of cost is higher eventually promote.And the radio alarming device frequency stability height that is difficult to do cheaply, so reliability is bad, and the radiowave resource-constrained, emissive power has been done greatly and has been easy to generate interference, limited by local the Radio Management Commission, and it is little that power is done, and falls flat.

The purpose of this utility model is: a kind of alarm that utilizes civilian power line transmission signal is provided, makes and can accomplish the strange land warning in the certain limit of same power transformer.

Technical solution adopted in the utility model is: it is made up of carrier transmit machine and carrier receiver, and its improvements are: the carrier transmit machine is connected by civilian line of electric force with the carrier terminal equipment receiver.

Advantage of the present utility model is: (1) is because the utility model adopts civilian line of electric force transmitting electric power carrier signal, therefore can accomplish in the certain limit of same transformer that the strange land reports to the police, and need not to lay again new electric wire and come transmission signals also can not produce radio wave interference simultaneously.(2) owing to timesharing on line of electric force, frequency division transmits signal, therefore can not produce disturbing effect mutually substantially when multimachine uses.

Be specific embodiment of the utility model below

Fig. 1 is the utility model schematic diagram;

Fig. 2 is carrier transmit machine circuit figure;

Fig. 3 is the carrier receiver circuit diagram.

Work of the present utility model as shown in Figure 1 and Figure 2 is after disconnecting by the magnetic switch in the carrier transmit machine, alerting signal is launched by the carrier transmit machine, pass to carrier receiver through civilian line of electric force, send the alarm sound signal by carrier receiver then and formed.

Civilian line of electric force is meant that voltage is the general civilian power lighting transmission line of 220V in the utility model.

Be illustrated in figure 2 as carrier transmit machine circuit figure, it is to be linked to each other with timing pulse generation circuit by magnetic switch, timing pulse generation circuit links to each other with low-frequency oscillatory network, low-frequency oscillatory network links to each other with the carrier oscillation circuit, the carrier oscillation circuit links to each other with the carrier wave amplification emissioning circuit, the carrier wave amplification emissioning circuit link to each other with civilian line of electric force form; Wherein timing pulse generation circuit is by ic chip ₂8 pin, resistance R ₇, R ₈An end and power supply B ₁Positive pole link to each other ic chip ₂7 pin and resistance R ₈The other end, resistance R ₉An end and diode D ₄Positive pole link to each other ic chip ₂6 pin and resistance R ₉The other end, diode D ₄Negative pole, capacitor C ₁₀An end, ic chip ₂2 pin link to each other ic chip ₂5 pin and capacitor C ₉An end link to each other ic chip ₂4 pin and resistance R ₇The other end, an end of magnetic switch, capacitor C ₈An end link to each other ic chip ₂1 pin, capacitor C ₈, C ₉, C ₁₀The other end, the other end of magnetic switch all meet power supply B ₁Negative pole and ic chip ₂3 pin and low-frequency oscillatory network in ic chip ₁10 pin link to each other form; Low-frequency oscillatory network is by ic chip ₁14 pin, resistance R ₅A termination power B ₁Positive pole, ic chip ₁13 pin and resistance R ₅The other end, diode D ₃Positive pole, resistance R ₆An end link to each other ic chip ₁12 pin and 8 pin and resistance R ₆The other end, diode D ₈Negative pole, capacitor C ₇An end link to each other ic chip ₁11 pin and capacitor C ₆An end link to each other capacitor C ₆, C ₇The other end all meet power supply B ₁Negative pole and ic chip ₁9 pin and the ic chip in the carrier oscillation circuit ₁4 pin link to each other form; The carrier oscillation circuit is by ic chip ₁1 pin and resistance R ₃An end, diode D ₂Positive pole, D ₁Negative pole link to each other resistance R ₃Another termination power B ₁Positive pole, resistance R ₄An end and diode D ₁Positive pole link to each other ic chip ₁2 pin, 6 pin and diode D ₂Negative pole, resistance R ₄The other end, capacitor C ₄An end link to each other capacitor C ₄, C ₅The other end, ic chip ₁7 pin all meet power supply B ₁Negative pole and ic chip ₁5 pin and the resistance R in the carrier wave amplification emissioning circuit ₁An end link to each other form; The carrier wave amplification emissioning circuit is by resistance R ₁The other end and resistance R ₂An end, triode Q ₁Base stage link to each other triode Q ₁Collector and capacitor C ₃An end, coil L ₁An end link to each other coil L ₁The other end, capacitor C ₃Another termination power B ₁Positive pole, triode Q ₁Emitter, resistance R ₂Another termination power B ₁Negative pole, coil L ₁By magnetic core T ₁With coil L ₂Coupling, coil L ₂Two ends and capacitor C ₁, C ₂An end link to each other respectively, and by capacitor C ₁, C ₂The other end connect civilian line of electric force respectively and form.

Be illustrated in figure 3 as the carrier receiver circuit diagram, it is to be linked to each other with detection filter circuit by the LC resonant circuit, and detection filter circuit links to each other with amplifying circuit, and amplifying circuit links to each other with frequency selection circuit, frequency selection circuit links to each other with timing circuit, timing circuit link to each other with the alarm sound circuit form; Wherein the LC resonant circuit is by capacitor C ₁₁, C ₁₂Each end link to each other capacitor C with civilian line of electric force ₁₁, C ₁₂The other end respectively with coil L ₃Two ends link to each other, coil L ₃By magnetic core T ₂With coil L ₄Coupling, L ₄Two ends and capacitor C ₁₃Two ends link to each other and capacitor C ₁₃A termination power B ₂Negative pole is formed; Detection filter circuit is by resistance R ₁₀An end and the capacitor C in the LC resonant circuit ₁₃One end links to each other, resistance R ₁₀The other end and diode D ₅Negative pole link to each other diode D ₅Positive pole and resistance R ₁₁, R ₁₂An end, capacitor C ₁₄And the capacitor C in the amplifying circuit ₁₅An end link to each other resistance R ₁₁Another termination power B ₂Positive pole, capacitor C ₁₄, resistance R ₁₂Another termination power B ₂Negative pole is formed; Amplifying circuit is by capacitor C ₁₅The other end and resistance R ₁₃, variable resistor W ₁, triode Q ₂Base stage link to each other triode Q ₂Collector and resistance R ₁₄An end, triode Q ₃Base stage link to each other variable resistor W ₁The other end and capacitor C ₁₆An end, resistance R ₁₆An end, triode Q ₃Emitter link to each other triode Q ₃Collector and resistance R ₁₅, capacitor C ₁₇An end link to each other resistance R ₁₄, R ₁₅Another termination power B ₂Positive pole, resistance R ₁₃, R ₁₆The other end, triode Q ₂Emitter, capacitor C ₁₆Another termination power B ₂Negative pole and capacitor C ₁₇The other end and the ic chip in the frequency selection circuit ₃3 pin link to each other form; Frequency selection circuit is by ic chip ₃8 pin and resistance R ₁₈, R ₁₉An end link to each other ic chip ₃2 pin and capacitor C ₂₀An end link to each other ic chip ₃1 pin and capacitor C ₁₉An end link to each other ic chip ₃6 pin and resistance R ₁₇An end, capacitor C ₁₈An end link to each other resistance R ₁₇The other end and variable resistor W ₂An end link to each other variable resistor W ₂The other end and ic chip ₃5 pin link to each other ic chip ₃7 pin, capacitor C ₁₈, C ₁₉, C ₂₀The other end all with power supply B ₂Negative pole links to each other, ic chip ₃4 pin, resistance R ₁₈The other end, capacitor C ₂₁An end all with power supply B ₂Anodal linking to each other and resistance R ₁₉The other end, capacitor C ₂₁The other end and timing circuit in ic chip ₄2 pin link to each other form; Timing circuit is by ic chip ₄6 pin, 7 pin and resistance R ₂₀An end, capacitor C ₂₂An end link to each other ic chip ₄5 pin and capacitor C ₂₃An end link to each other resistance R ₂₀, ic chip ₄4,8 pin and power supply B ₂Anodal continuous, ic chip ₄1 pin, capacitor C ₂₂, C ₂₃The other end and power supply B ₂Negative pole links to each other and ic chip ₄3 pin and the resistance R in the alarm sound circuit ₂₁An end link to each other form; The alarm sound circuit is by resistance R ₂₁The other end and triode Q ₄Base stage, electric capacity c ₂₄An end, stabilivolt D ₆Negative pole link to each other triode Q ₄Emitter and ic chip ₅Input end link to each other ic chip ₅Output terminal and triode Q ₅Base stage link to each other triode Q ₅Collector link to each other the other end of loudspeaker Z and capacitor C with the end of loudspeaker Z ₂₅An end, resistance R ₂₃An end link to each other triode Q ₄Collector, capacitor C ₂₅The other end, resistance R ₂₃The other end and power supply B ₂Anodal continuous, capacitor C ₂₄The other end, stabilivolt D ₆Positive pole, ic chip ₅Earth terminal, triode Q ₅Emitter and power supply B ₂Negative pole is continuous to be formed.

Principle of work of the present utility model is: after alarm installs, make magnet leave magnetic switch as object striking magnetic switch, circuit produces contact point signal control timing pulse generation circuit and regularly produces a square wave at this moment, this square wave control low-frequency oscillatory network starting of oscillation, low-frequency oscillatory network after the starting of oscillation drives the carrier oscillation circuit, the work of carrier wave amplification emissioning circuit, the carrier transmit machine is that civilian line of electric force is launched one group of modulated low frequency pulse signal at interval to carrier, the modulated low frequency pulse signal of this group is received by the LC resonant circuit of the carrier receiver of correspondence, through detection filter circuit, revert to corresponding low frequency signal behind the amplifying circuit, again through the jump in potential of frequency selection circuit frequency-selecting (corresponding) frequency selection circuit output terminal as frequency, the control timing circuit starts, start back control alarm sound circuit generation chimes of doom, promptly finished entire work process.

Claims (4)

1, alarm, it is made up of carrier transmit machine and carrier receiver, it is characterized in that: the carrier transmit machine is connected by civilian line of electric force with carrier receiver.

2, alarm according to claim 1, it is characterized in that: the carrier transmit machine is that magnetic switch links to each other with timing pulse generation circuit, timing pulse generation circuit links to each other with low-frequency oscillatory network, low-frequency oscillatory network links to each other with the carrier oscillation circuit, the carrier oscillation circuit links to each other with the carrier wave amplification emissioning circuit, the carrier wave amplification emissioning circuit link to each other with civilian line of electric force form; Wherein timing pulse generation circuit is by ic chip ₂8 pin, resistance R ₇, R ₈An end and power supply B ₁Positive pole link to each other ic chip ₂7 pin and resistance R ₈The other end, resistance R ₉An end, diode D ₄Positive pole link to each other ic chip ₂6 pin and resistance R ₉The other end, diode D ₄Negative pole, capacitor C ₁₀An end, ic chip ₂2 pin link to each other ic chip ₂5 pin and capacitor C ₉An end link to each other ic chip ₂4 pin and resistance R ₇The other end, an end of magnetic switch, capacitor C ₈An end link to each other ic chip ₂1 pin, capacitor C ₈, C ₉, C ₁₀The other end, the other end of magnetic switch all meet power supply B ₁Negative pole and ic chip ₂3 pin and low-frequency oscillatory network in ic chip ₁10 pin link to each other form; Low-frequency oscillatory network is by ic chip ₁14 pin, resistance R ₅A termination power B ₁Positive pole, ic chip ₁13 pin and resistance R ₅The other end, diode D ₃Positive pole, resistance R ₆An end link to each other ic chip ₁12 pin and 8 pin and resistance R ₆The other end, diode D ₃Negative pole, capacitor C ₇An end link to each other ic chip ₁11 pin and capacitor C ₆An end link to each other capacitor C ₆, C ₇The other end all meet power supply B ₁Negative pole and ic chip ₁9 pin and the ic chip in the carrier oscillation circuit ₁4 pin link to each other form; The carrier oscillation circuit is by ic chip ₁1 pin and resistance R ₃An end, diode D ₂Positive pole, D ₁Negative pole link to each other resistance R ₃Another termination power B ₁Positive pole, resistance R ₄An end and diode D ₁Positive pole link to each other ic chip ₁2 pin, 6 pin and diode D ₂Negative pole, resistance R ₄The other end, capacitor C ₄An end link to each other capacitor C ₄, C ₅The other end, ic chip ₁7 pin all meet power supply B ₁Negative pole and ic chip ₁5 pin and the resistance R in the carrier wave amplification emissioning circuit ₁An end link to each other form; The carrier wave amplification emissioning circuit is by resistance R ₁The other end and resistance R ₂An end, triode Q ₁Base stage link to each other triode Q ₁Collector and capacitor C ₃An end, coil L ₁An end link to each other coil L ₁The other end, capacitor C ₃Another termination power B ₁Positive pole, triode Q ₁Emitter, resistance R ₂Another termination power B ₁Negative pole, coil L ₁By magnetic core T ₁With coil L ₂Coupling, coil L ₂Two ends and capacitor C ₁, C ₂An end link to each other respectively, and by capacitor C ₁, C ₂The other end connect civilian line of electric force respectively and form.

3, alarm according to claim 1, it is characterized in that: carrier receiver is to be linked to each other with detection filter circuit by the LC resonant circuit, detection filter circuit links to each other with amplifying circuit, amplifying circuit links to each other with frequency selection circuit, frequency selection circuit links to each other with timing circuit, timing circuit link to each other with the alarm sound circuit form; Wherein the LC resonant circuit is by capacitor C ₁₁, C ₁₂Each end link to each other capacitor C with civilian line of electric force ₁₁, C ₁₂The other end respectively with coil L ₃Two ends link to each other, coil L ₃By magnetic core T ₂With coil L ₄Coupling, L ₄Two ends and capacitor C ₁₃Two ends link to each other and capacitor C ₁₃A termination power B ₂Negative pole is formed; Detection filter circuit is by resistance R ₁₀An end and the capacitor C in the LC resonant circuit ₁₃One end links to each other, resistance R ₁₀The other end and diode D ₅Negative pole link to each other diode D ₅Positive pole and resistance R ₁₁, R ₁₂An end, capacitor C ₁₄And the capacitor C in the amplifying circuit ₁₅An end link to each other resistance R ₁₁Another termination power B ₂Positive pole, capacitor C ₁₄, resistance R ₁₂Another termination power B ₂Negative pole is formed; Amplifying circuit is by capacitor C ₁₅The other end and resistance R ₁₃, variable resistor W ₁, triode Q ₂Base stage link to each other triode Q ₂Collector and resistance R ₁₄An end, triode Q ₃Base stage link to each other variable resistor W ₁The other end and capacitor C ₁₆An end, resistance R ₁₆An end, triode Q ₃Emitter link to each other triode Q ₃Collector and resistance R ₁₅, capacitor C ₁₇An end link to each other resistance R ₁₄, R ₁₅Another termination power B ₂Positive pole, resistance R ₁₃, R ₁₆The other end, triode Q ₂Emitter, capacitor C ₁₆Another termination power B ₂Negative pole and capacitor C ₁₇The other end and the ic chip in the frequency selection circuit ₃3 pin link to each other form; Frequency selection circuit is by ic chip ₃8 pin and resistance R ₁₈, R ₁₉An end link to each other ic chip ₃2 pin and capacitor C ₂₀An end link to each other ic chip ₃1 pin and capacitor C ₁₉An end link to each other ic chip ₃6 pin and resistance R ₁₇An end, capacitor C ₁₈An end link to each other resistance R ₁₇The other end and variable resistor W ₂An end link to each other variable resistor W ₂The other end and ic chip ₃5 pin link to each other ic chip ₃7 pin, capacitor C ₁₈, C ₁₉, C ₂₀The other end all with power supply B ₂Negative pole links to each other, ic chip ₃4 pin, resistance R ₁₈The other end, capacitor C ₂₁An end all with power supply B ₂Anodal linking to each other and resistance R ₁₉The other end, capacitor C ₂₁The other end and timing circuit in ic chip ₄2 pin link to each other form; Timing circuit is by ic chip ₄6 pin, 7 pin and resistance R ₂₀An end, capacitor C ₂₂An end link to each other ic chip ₄5 pin and capacitor C ₂₃An end link to each other resistance R ₂₀, ic chip ₄4,8 pin and power supply B ₂Anodal continuous, ic chip ₄1 pin, capacitor C ₂₂, C ₂₃The other end and power supply B ₂Negative pole links to each other and ic chip ₄3 pin and the resistance R in the alarm sound circuit ₂₁An end link to each other form; The alarm sound circuit is by resistance R ₂₁The other end and triode Q ₄Base stage, capacitor C ₂₄An end, stabilivolt D ₆Negative pole link to each other triode Q ₄Emitter and ic chip ₅Input end link to each other ic chip ₅Output terminal and triode Q ₅Base stage link to each other triode Q ₅Collector link to each other the other end of loudspeaker Z and capacitor C with the end of loudspeaker Z ₂₅An end, resistance R ₂₃An end link to each other triode Q ₄Collector, capacitor C ₂₅The other end, resistance R ₂₃The other end and power supply B ₂Anodal continuous, capacitor C ₂₄The other end, stabilivolt D ₆Positive pole, ic chip ₅Earth terminal, triode Q ₅Emitter and power supply B ₂Negative pole is continuous to be formed.

4, alarm according to claim 1 is characterized in that: described civilian line of electric force is meant that voltage is the line of electric force of 220V.

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