JPH045407B2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a pest control method.

``Prior art'' Conventionally, in order to scare away wild birds and beasts, the screams of the birds and beasts were recorded and broadcast in pain due to the administration of drugs, and the broadcasting equipment used was a tape recorder and other equipment. A phonograph was used (Special Publication No. 10739, Showa 44). However, the cries of pain caused by the drug administration are only cries of physical pain, and do not contain any information that would encourage their companions to take escape action. In order to scare away creatures with screams or alarm calls, unless the sound contains information that will encourage your companions to take escaping action, the effect will be weak and not suitable for practical use. Furthermore, the screams of pain caused by the administration of drugs do not often occur even when drugs are given to animals, and administering too much of the drug can lead to death, so when recording this audio, Many animals and birds would have to be sacrificed, which goes against the current bird and animal protection administration and ideology. Also, the sound of the screams of pain recorded by sacrificing birds and beasts is weak, so when broadcasting it,
Even if the sound is amplified by an amplifier, the sound volume will not become large; if the sound is forcibly increased, the noise becomes louder and the voice itself becomes unclear, making it unusable. If the sound volume is too low, the control area becomes narrow, which is uneconomical. Furthermore, the screams of pain in the above-mentioned Japanese Patent Publication No. 10739/1984 are not appropriate as voices used to drive away birds and beasts. This is what our research has revealed,
The question is whether all the screams and warning voices that humans hear can be used to scare away birds and beasts, but this is not the case.In the screams and warning voices that can be heard in the same way, there is information that is valid only for companions. There is something included. Therefore, when a scream or a warning voice that sounds the same is actually tested, the reaction will be different.For example, when a certain voice is emitted, all the surrounding friends will gather right above the speaker and fly around and run away. Also, when some cries are emitted, they retreat to a certain distance, chirp in time with the sound, and do not approach. It turns out that there are several types of these behavioral patterns.

"Problems to be Solved by the Invention" The purpose of the present invention is to provide a method for driving away harmful birds and animals by recording the screams and warning voices of birds and animals separately and reproducing and broadcasting them. It is something to do.

"Means for Solving the Problems" The present invention uses a plurality of birds and beasts of the same type, each of which is housed in a separate cage or cage, and the voice emitted by threatening one of them, and the voice emitted by that voice. It consists of a law for exterminating harmful birds and beasts that is characterized by recording other warning voices and reproducing and broadcasting them.

``Effect'' Therefore, birds and animals of the same type are housed in separate cages or cages, and the voice that threatens one of them and the voices that other birds and animals make when they hear it are recorded on a recorder. However, when this is reproduced and broadcast, screams and warning voices are emitted as in reality, and birds and beasts of the same species as the above-mentioned birds and beasts that hear this are chased away by scattering or running away from the above-mentioned broadcasting section.

``Example'' The recording of cries that can be used for expulsion is the voice recorded using the following procedure. Birds and beasts require at least two animals (feathers), and they are placed in separate cages and only one is threatened, and one way to threaten them is to provoke natural predators such as dogs, cats, and weasels. In this case, the person who is threatened is afraid of the black cloth, so shake it. (You can record a voice that is even more effective if you use the previously recorded sound while threatening.) Then, the person who is threatened will scream for help to the other person. One makes a voice, the other makes a warning cry towards the outside. This cry is a cry of fear and alarm, so the volume is high, and it is a cry that has the effect of scaring away natural enemies because it contains information that informs the mate of escape behavior. It is the cries recorded in this way that can be used for bird and animal pest control measures. The voices recorded in this way are the voices of birds and beasts screaming out of their natural psychological fear, and can be recorded at a high volume, echoing over a wide range during broadcasting, making it economical and practical. In this way, the invention of Japanese Patent Publication No. 10739/1973 is fundamentally different from the recording method used to record voices. Next, regarding the equipment, recording will be done with a tape recorder, but it must be done in a way that does not introduce noise. The broadcasting equipment is a special public service from 1977.
There is no problem with the device described in No. 10739, but there are problems from a practical point of view. Tape recorders and phonographs cannot be used without waterproof structures or facilities because birds and animals usually live outdoors. starts and stops tape recorders and phonographs,
The problems include the fact that tapes require some degree of human control when rewinding them, and tapes and recording discs deteriorate when used for a long period of time. In Utility Model Application No. Sho 62-142280 and Utility Application No. Sho 62-088449 filed by the applicant, this point is
This problem was solved by adopting an integrated circuit voice storage device, and subsequent research has shown that the key vocal parts of screams and warning voices used for bird and animal damage prevention measures can be made up of words lasting at most 5 to 15 seconds. It was found that the effect was sufficient if the sound was emitted repeatedly for several minutes (it was more effective to adjust the emitting time depending on the size of the place and the number of people). When inputting this 5 to 15 seconds into the voice storage device of an IC integrated circuit, there is a disadvantage that the longer the storage time becomes, the more it becomes economically expensive and the more space is required. It is necessary to research, select, and input the parts of the voice that will be heard. Utility Model Application No. 142280 Invention and Utility Application No. 142280
This issue has been resolved with issue 088449. Furthermore, as a result of research, although the speaker is integrated with the case in the shape of Utility Application No. 62-088449, it is more effective to take out only the speaker and use it because the sound passes through, and the type of speaker is the trumpet speaker. It is economical because of the spread of sound, and research has revealed that there is a serious problem hidden in the direction in which speakers are installed. To the human ear, the back and sides sound the same as in the straight direction, but the response is several steps different. Therefore, the speaker must be pointed in the direction where the birds and beasts are invading, or in the direction where the birds and beasts are.
Trumpet speakers are effective in this respect as well, as they have a wide opening. Therefore, when installing in a wide area, it is more effective to have two to four speakers pointing in each direction and emitting sound.

``Effects'' Since the present invention is configured as described above, realistic screams and warning voices can be emitted at places where harmful birds and animals fly or appear, and there is an effect that the harmful birds and animals can be reliably chased away.

Claims (1)

[Claims] 1. Using multiple birds and beasts of the same species, housing them in separate cages or cages, recording the voice they make when threatening one of them, and other warning voices made by that voice, and replaying and broadcasting the recordings. A law for exterminating harmful birds and beasts.