Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Such magnets may be electromagnets powered by batteries in some embodiments.

A high-voltage power source device includes: a first terminal connected to a first end of an electrical wire disposed around a predetermined region; a second terminal connected to a second end of the electrical wire; a high-voltage generation circuit connected to the first terminal and generating high-voltage electricity; a voltage detection circuit connected to the second terminal, and measuring a voltage value of the high-voltage electricity at the second terminal and determining presence of an abnormality in the electrical wire, based on a measured voltage value; a timing circuit instructing the high-voltage generation circuit to generate high-voltage electricity at a timing when the high-voltage electricity is generated, and sending an instruction to measure a voltage value of the high-voltage electricity at the second terminal to the voltage detection circuit; and a notification circuit for notifying a determination result of the voltage detection circuit to outside.

Apparatus and associated methods relate to a pest repelling magnetic field generating device (PRD) having a temperature sensor to detect the temperature of a solenoid coil during operation. The detected temperature to be used to ensure that the PRD operates within an ideal temperature range. Additionally, a fan is oriented within a housing of the PRD to force the flow of air from inside a housing of the PRD to outside a housing the PRD. In an illustrative example, the PRD may shut off if the temperature of the solenoid coil moves outside the ideal temperature range. By operating the PRD within an ideal temperature range, the service life of the PRD may be extended. Further, the fan may mitigate dust collection within the housing of the pest repelling magnetic field generating device.

Apparatus and associated methods relate to a pest repelling magnetic field generating device (PRD) having a temperature sensor to detect the temperature of a solenoid coil during operation. The detected temperature to be used to ensure that the PRD operates within an ideal temperature range. Additionally, a fan is oriented within a housing of the PRD to force the flow of air from inside a housing of the PRD to outside a housing the PRD. In an illustrative example, the PRD may shut off if the temperature of the solenoid coil moves outside the ideal temperature range. By operating the PRD within an ideal temperature range, the service life of the PRD may be extended. Further, the fan may mitigate dust collection within the housing of the pest repelling magnetic field generating device.

Animal sensing systems and methods are described. An animal sensing system can include an input section with an entrance and an output section having at least two output paths each having its own exit. An animal can enter the animal sensing system through the entrance. A sensor within a sensing area of the input section can detect one or more characteristics of the animal, and can communicate the detected characteristic(s) to a central processing unit. The central processing unit can use the received data to classify the animal based on the detected characteristic(s), and then control a directional guide, such as a gate, in the animal sensing system on the basis of the classification, so as to direct the animal within the animal sensing system, such as to allow access to only one of the output paths at a time. The animal may thus be allowed to exit the animal sensing system through only one output path, directing the animal to a desired location based on the classification.

A wildlife exclusion system for railway tracks is provided which includes an exclusion arrangement positioned to span across the railway tracks at a location along a length of the railway tracks. The exclusion arrangement extends generally perpendicular to the railway tracks and has a series of conductive elements spaced apart from each other to form an exclusion are configured to provide an electric shock to wild animals when particular conductive elements within the exclusion area are bridged thereby. Methods of installing a wildlife exclusion system and methods of discouraging wild animals from traveling along railway tracks are also provided.

A wildlife exclusion system for railway tracks is provided which includes an exclusion arrangement positioned to span across the railway tracks at a location along a length of the railway tracks. The exclusion arrangement extends generally perpendicular to the railway tracks and has a series of conductive elements spaced apart from each other to form an exclusion are configured to provide an electric shock to wild animals when particular conductive elements within the exclusion area are bridged thereby. Methods of installing a wildlife exclusion system and methods of discouraging wild animals from traveling along railway tracks are also provided.

Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Some embodiments may be of personal floatation devices (PFDs) fitted with at least one magnet configured to repel sharks away from the PFDs. Some PFDs may be fitted with a tethered drop-down magnetic apparatus to protect lower extremities of a wearer of such PFDs. Such magnets may be electromagnets powered by batteries in some embodiments.

Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Some embodiments may be of personal floatation devices (PFDs) fitted with at least one magnet configured to repel sharks away from the PFDs. Some PFDs may be fitted with a tethered drop-down magnetic apparatus to protect lower extremities of a wearer of such PFDs. Such magnets may be electromagnets powered by batteries in some embodiments.

It is disclosed a device for controlling and/or euthanizing vermin or pests for preventing such vermin or pests from entering into a geographical area or into a building, wherein the device comprises at least one completely or partially uninsulated electrically conducting wire or conductor connected to an electrical current source, providing controlled electrical pulses to said conductor or wire in the form of pulses or pulse trains. The device may be used in a method for controlling the access of pests/vermin to a geographical location, building or property wherein the electrically conducting wire(s) lead(s) an electrical current with an amperage of not less than 0.0001 A. The device and method is particularly suited for removing/controlling pests/vermin on land.