Method of and system for threatening pests.

[Detailed Description of the Invention]

The present invention threatens noxious animals including rats using mechanical oscillation, such as sound, and it relates to the threatening devices of the noxious animal which prevents the invasion while it expels these noxious animals. Rats dislike extremely the audible signal of the frequency of a certain specific range on the character. Therefore, if the place which many rats, such as a warehouse and the underpart of the roof, inhabit is irradiated with such an audible signal, it is effective in expulsion of rats. If the portion used as the entrance of rats or the portion used as a passage is irradiated with this audible signal, it will become effective also in preventing that invasion. The threatening devices of the rats which used Together and these for the increase in the damage of rats are developed, and practical use is presented these days. Here, although rats change somewhat with the kinds, the audible signal of an 18~40-kHz ultrasonic range is hated. Therefore, what sends out the ultrasonic wave most effective in the rat of the kind made into the object as an intimidation signal is common, and these threatening devices are Oh. However, although Then acts on such conventional threatening devices effectively between a few days comparatively after installation, in the use over a long period of time, rats will get used to this intimidation signal, and it will be lost, and most intimidation effects are Oh. Here, if the output of this intimidation signal is made into a sufficiently big thing, the intimidation effect can be made to maintain to some extent, but a possibility of doing damage to a human being or Family in this case comes out. While the present invention was made paying attention to this point and changing the frequency of an intimidation signal at random, Impulse Otobe by a rapid descent and rise of frequency is sometimes included, A small output also provides the threatening devices of harmful Characteristic for which the intimidation effect of a noxious animal can be maintained without having a bad influence on man and Family without a noxious animal getting used to this signal, The oscillating circuit where oscillating frequency changes following a control signal the place made into the gist, The control circuit which builds in a random signal generator and generates the control signal corresponding to the output random signal, It has a transducer which changes an electric signal into an acoustic mechanical vibration, and is constituted, The control signal which a control circuit outputs is given to an oscillating circuit, and oscillating frequency is controlled, The intimidation signal which contains the crashing sound portion changed from rapid descent of frequency to a more rapid rise in the oscillating frequency which changes at random is created, and it consists in the threatening devices of the noxious animal changing this intimidation signal into a mechanical vibration, and sending it out with tolan douceur. It explains in detail, referring to the drawing in which an example is shown below. Drawing 1 is a block diagram which shows one example of the present invention. In the figure, as for 1, an amplification circuit and 3 are transducers an oscillating circuit and 2, and 4 is a control circuit. The oscillating frequency is controlled by the voltage value of the control signal with which oscillating circuit 1 is given to Then and terminal C in the oscillating circuit of a variable frequency form. The range of fluctuation of the frequency at this time is an about about 2~3-kHz thing at the upper and lower sides of center frequency, for example. By adjusting semipermanent resistor VR attached to it, this oscillating circuit 1 is constituted so that the above-mentioned center frequency can be set up arbitrarily. The variable field of the center frequency by this semipermanent resistor VR is an about 3~40-kHz thing for example, from the audible wave-band region to an ultrasonic zone. Amplification circuit 2 amplifies the output signal of Then and the above-mentioned oscillating circuit 1 in an electric power amplification circuit, and transmits it to tolan douceur 3. Tolan douceur 3 is a converter which changes an electric signal into a mechanical vibration of the roughness and fineness of air, etc. In this example, the Piezo speaker which can operate to an ultrasonic range of 40 kHz or more as this tolan douceur is used. Control circuit 4 supplies the control signal for controlling the oscillating frequency to the above-mentioned oscillating circuit 1. This control circuit 4 builds in the random signal generator, and outputs the control signal with which a voltage value changes according to the random signal which it generates from terminal SR. Drawing 2 is a block diagram which shows an example of the composition. As for a shift register and GT, a gate and PG of SFR are pulse generators in the figure. Shift register SFR is a thing of 16 stage composition, and the accumulation information is constituted so that it can read in parallel than terminal Q0~Q15. This shift register SFR shift action is controlled by the shift pulse supplied to terminal CK from pulse generator PG. if gate GT has the same signal inputted into both input terminals -- "1" -- the signal of "0" will be outputted if different. It is a gate which performs what is called exclusive OR operation, and acts as a coincidence detector circuit. The signal with which the signal outputted from terminal Q6 of the even number stage of the above-mentioned shift register SFR, for example, the 6th stage, is outputted to another side again from terminal Q9 of an odd number stage, for example, the 9th stage, is inputted into one side of the input terminal of this gate GT, respectively. The result of the coincidence detection by this gate GT is inputted into the 0th lowest stage from terminal D of shift register SFR. Random number information is stored in CIF Treisiste SFR by shifting this information to a higher rank one by one. The random number information stored in this shift register SFR is taken out more than from the stage of about the suitably selected half one by resistor r. In this example, the signal is taken from each 1st, 3rd, 8th, 10th, and 12~15th stages. Resistor r has connected terminals Q1, Q3, Q8, and Q10 of each of these stages, and Q12~Q15 to common connecting point A. This connecting point A is resistor r.₁It is alike and is connected to terminal SR which is therefore an output terminal of this control circuit 4. Therefore, since the synthetic value of resistor r connected to a high level and a low level will change, respectively if the pattern of the random number information accumulated in Lever each stage changes, the voltage of connecting point A and also the voltage of terminal SR are also changed according to this, and a random signal is created. the voltage value of the signal inputted into Then and terminal C with the pulse generator with which pulse generator PG sends out the continuous pulse which makes 50 Hz center frequency -- therefore, it is constituted so that a pulse repetition cycle may change. The fluctuation range of this frequency is a thing and intermediary To have of about several hertz to the upper and lower sides of center frequency, respectively. In the terminal of this pulse generator PG, the voltage of the above-mentioned connecting point A is resistor r.₂It is Through(ed) and given. Therefore, that pulse repetition cycle will be changed according to the random signal according [ this pulse generator PG ] to shift register SFR. Shift register SFR uses the output of this pulse generator PG as a shift pulse. Therefore, the control signal outputted from terminal SR will change completely at random [ the voltage value and a change cycle ]. Here, in this control circuit 4, the control signal is created using the pattern of the random number information accumulated more than in the stage of about half one of shift register SFR, Since there is deviation also in the adoption stage and also the coincidence detection result of the information chosen at a time from each of even number and odd number one stage is used as input of shift register SFR like the above-mentioned, A portion with a very sharp change which a voltage value goes abruptly up and dives appears frequently, and does not repeat the same change pattern for a short period of time. Drawing 3 is a block diagram which shows an example of the composition of the above-mentioned oscillating circuit 1. In the figure, AMP1, AMP2, and AMP3 are amplifiers and FF is a flip flop. A flip flop is reset by the output of amplifier AMP1 and is Set(ed) by the output of amplifier AMP2. The output of right potential comes out of amplifier AMP1 and amplifier AMP2 to a Noodle case with the amplifier of differential type more highly than the potential of an input terminal with negative potential of Then and a positive input terminal, respectively. The potential of connecting point Y is given to an input terminal positive in this amplifier AMP1 at the input terminal whose potential of connecting point X is negative again, and an output is supplied to the reset terminal of flip flop FF. The potential of connecting point X is given to an input terminal positive in amplifier AMP2 at the input terminal whose potential of connecting point Z is negative again, and an output is supplied to the Set terminal of flip flop FF. Here, the potential of connecting point X is capacitor C.₁The electric charge boiled and accumulated is determined. This capacitor C₁When Is transistor Tr is OFF, they are semipermanent resistor VR and resistor R.₁It is resistor R, when it Through, it charges by power supply Vcc and transistor Tr is ON.₁It Through and is discharged by The earth. If above-mentioned flip Pop FF is Set(ed), it is come by off, and if transistor Tr is reset, it will be set to ON. Therefore, it is capacitor C during OFF of transistor Tr.₁Charging advances, and if the potential of connecting point X exceeds the potential of connecting point Y, flip flop FF will be reset. Transistor Tr is set to ON by this, and it is capacitor C.₁The electric charge boiled and stored is discharged. Capacitor C₁If Discharge progresses and the potential of connecting point X breaks the potential of connecting point Z, flip flop FF is Set(ed) and transistor Tr will be in an OFF state. Continuing such a sequence of operation below, flip flop FF repeats Set and reset. Therefore, if they are late if Set of this flip flop FF and the repetition cycle of reset , have large potential difference with contact buttons Y and Z, and they are small, they will become quick. The potential of connecting point Y is determined by the control signal from control circuit 4 inputted into terminal C here. The potential of connecting point Z is two resistors R about the potential of this connecting point Y.₂,R₃It becomes the value come out of and divided. That is, it will become small if the potential difference with connecting points Y and Z will become large if the voltage of the above-mentioned control signal becomes high, and it becomes low. Therefore, if Set of flip flop FF and the repetition cycle of reset will become late if the voltage of a control signal becomes high, and they become low, they will become quick. The state of this flip flop FF is taken out via amplifier AMP3, and is sent out from terminal OP as an output of oscillating circuit 1. Set of this flip flop FF and the repetition cycle of reset, i.e., the oscillating frequency of oscillating circuit 1, can be changed also by adjustment of semipermanent resistor VR. It is capacitor C when semipermanent resistor VR is adjusted.₁A Charging damping time constant is changed, the Set period of flip flop FF is changed, and oscillating frequency is changed. This semipermanent resistor VR is the same as that of what is shown in Drawing 1 with the same numerals, and is used for a setup of the center frequency of oscillating circuit 1. Next, operation of the threatening devices of the noxious animal constituted by this appearance is explained. First, semipermanent resistor VR is adjusted and the center frequency of oscillating circuit 1 is set as the 33-kHz neighborhood which Rattle hates most, for example. If a power supply is switched on, control circuit 4 operates like the above-mentioned, and sends out a control signal from terminal SR. This control signal is changing with control of the random signal generator built in control circuit 4 completely at random [ that voltage value and the temporal duration of that voltage value ]. This control signal that changes at random contains frequently further the portion which dives after a voltage value goes abruptly up and which is changed very violently like the above-mentioned. This control signal sent out from terminal SR of control circuit 4 is supplied to terminal C of oscillating circuit 1, and controls that oscillating frequency. That is, this oscillating circuit 1 performs oscillation operation, also changing the continuation time of that frequency at random in 1/44~1 / 55 seconds while changing frequency at random among about 3 kHz focusing on 33 kHz approximately, respectively. In this frequency that changes at random, the crashing sound portion changed from rapid descent of frequency to a rise is contained corresponding to the rapid change portion of the above-mentioned control signal. Thus, into the frequency which completely changes at random focusing on the frequency which Rattle hates most, oscillating circuit 1 creates the intimidation signal in which the crashing sound portion was included, and outputs it from terminal OP. Drawing 4 is a wave form chart showing an example of this intimidation signal, and frequency is scale Being done to time and a vertical axis in a horizontal axis. The portion shown by I is the above-mentioned crashing sound portion in the figure. This intimidation signal is amplified by amplification circuit 2, and is supplied to transformer juicer 3. Transformer juicer 3 changes this electric intimidation signal into an ultrasonic wave signal, and emits it in the air. When Rattle is irradiated with the intimidation signal by such an ultrasonic wave as a result of an experiment, Rattle runs with the method of appearance out of an acoustic field, and is Round, In the crashing sound portion which aches in a corner and which is changed to a rise after it carries out relaxedly and the frequency of an ultrasonic wave signal descends rapidly, the Pikpiku spasm of the limbs, a tail, the ear, etc. is carried out, body hair is bristled up, and it is intermediary To rush out frenzied. This is because it becomes Impulsive sound which stimulates the hearing of an animal unusually since the ultrasonic wave reflected by the middle class of the ear of a peripheral wall side or a rat and the ultrasonic wave which newly enters interfere each other and it becomes a rapid frequency change in reverberation especially in a crashing sound portion. As a result of this experiment, it changes continuously from a certain frequency to the following frequency, and the damage by an intimidation signal will become bigger [ it / for that change to be steep ] rather than that frequency changes in the shape of a step. Capacitor C connected between terminal SR of control circuit 4, and The earth₂The object of The is achieved. In a crashing sound portion, the damage done to a noxious animal will become fatal by going up by making some descent of frequency loose and giving the reverberation effect more steeply than it. Capacitor C connected to the collector of transistor Tr of oscillating circuit 1₃Resistor R₄Time constant circuit achieves the object. Here, since an intimidation signal is what is completely changed at random focusing on the frequency which Rattle hates most, and contains a crashing sound portion frequently like the above-mentioned, Rattle does not get used to this intimidation signal. Therefore, Then also maintains the intimidation effect by the intimidation signal of a comparatively small output for a long period of time. Therefore, in the acoustic field of this intimidation signal, Rattle falls into a neurosis state by a grade, and it will Fun running, or Summer(ing) and also a fellow friend attack will be delivered [ not taking food ], Fitted together cannibalization will start, and it will become it extinct that it is long completely in about 2~3 days overnight. As mentioned above, although the example was described in detail, it cannot be overemphasized that the present invention is not what is limited only to this. For example, always the number of stages of the shift register used for a control circuit being arbitrarily selectable, The voltage of a control signal and its temporal duration are controlled by the output of a random number generation circuit based on other suitable logical operations, Then is also good, and controls an oscillating circuit by signals other than voltage, and Then is also good. Even if it creates by the circuit which prepared separately the rapid change portion of the control signal for generating the crashing sound portion in an intimidation signal and creates a control signal by compounding this with a random signal with few rapid change portions, the threatening devices of the noxious animal of the present invention are realizable. Since the threatening devices of the noxious animal of the present invention are that to which the frequency of an ultrasonic wave signal is changed continuously, When more than one are installed in closed space, such as a warehouse and the underpart of the roof, by interference of the ultrasonic wave signal from each device including an echo, the area used as the shadow of a sound wave can move, and it can cover the whole region, such as a warehouse and the underpart of the roof, with the small number of installation. In this case, two or more transducers may be connected to one oscillating circuit, and the intimidation effect can be economically enhanced by this. When the intimidation effect becomes powerful too much, movement of rats becoming extremely blunt and stopping is also although the capture using a capture machine will become difficult for a certain reason, In such a case, if the capture machine is beforehand Set(ed) to the passage of rats and the operation of a for [ 10 minutes ] grade device is suspended to night or toward morning, capture efficiency can be increased by leaps and bounds. The threatening devices of this noxious animal are effective in the intimidation of various noxious animals, such as a harmful insect represented with harmful birds, such as not only rats but other harmful animals, a pigeon, etc., and a cockroach. In this case, it is necessary to set up near the frequency which the noxious animal aiming at the center frequency of an oscillating circuit hates most. A noxious animal with the habit of hiding and inhabiting a place behind something like a cockroach is received, If a vessel is vibrated directly, using vibrator as a transducer, it is very effective, and it is Hitoshi Tabata's large outdoors, and when using for repulse of birds, such as a pigeon, a sparrow, and Ryuko, it is effective to use a trumpet speaker, a tweeter speaker, etc. as a transducer. If multiple transducers are connected, and countering arrangement is carried out in fields or it carries out diagonal arrangement of this in the four corners etc. here, in using for repulse of birds, That effect will become more powerful, and if that from which the characteristic of a trumpet speaker, a tweeter speaker, etc. differs is mixed together and used for these transducers of a plurality of, the repulse effect of birds will become almost perfect. Since it is what the frequency of an intimidation signal changes at random in the neighborhood of the frequency which the target noxious animal hates, and a crashing sound generates still more frequently according to the present invention as explained to details above, Even if it continues cotton intermediary use at a long period of time, that noxious animal does not get used to this intimidation signal, and the intimidation effect is hardly spoiled also by the intimidation signal of a comparatively small output. Therefore, while being able to expel a harmful animal in a few days, without doing damage to a human being or Family, invasion of these noxious animals can also be prevented.

[Brief Description of the Drawings]

The block diagram Drawing 1 indicates one example of the present invention to be, the block diagram which shows an example of a control circuit which uses Drawing 2 for this, the block diagram which Drawing 3 is the same and shows an example of an oscillating circuit, and Drawing 4 are wave form charts showing an example of an intimidation signal. 1 ...... An oscillating circuit, 2 ...... An amplification circuit, 3 ...... [ ...... A pulse generator, GT / ...... A gate, AMP1 AMP2, AMP3 / ...... An amplifier, FF / ...... A flip flop, I / ...... Crashing sound portion ] Tolan douceur, 4 ...... A control circuit, SFR ...... A shift register, PG