A ship includes a controller that performs wireless communications with a portable machine possessed by a passenger and a lanyard stop switch. When a lanyard code coupled to the passenger is pulled out, the lanyard stop switch operates to stop an engine of an outboard motor and stop the ship. When the controller detects that the lanyard stop switch operates, that is, detects a possibility that the passenger has fallen overboard, the controller starts wireless communications with the portable machine. The controller determines whether or not a rescue signal needs to be transmitted in accordance with conditions regarding a power density and a frequency of a radio wave of the wireless communications as predetermined conditions for estimating a situation of the passenger.

Safety device with sliding cable, to secure an installation. The device includes a sliding cable with a first attachment eyelet and a second attachment eyelet formed by two end portions, of the sliding cable, respectively closed by a first sleeve and a second sleeve. The first and second attachment eyelet allow to attach and connect the device to two adjacent parts of the installation. The safety device further includes signaling and activation means.

Provided are an emergency stop apparatus including a switch unit installed in a work space, electrically connected to a facility, and operable by pulling and a wire which is disposed in the work space so that tension is applied and of which at least one side is detachably mounted on the switch unit and an emergency stop method for quickly stopping the facility at a desired position within the work space in a manner of pulling or pushing the wire.

A flock of vehicles can include a leader vehicle and at least one follower vehicle coupled to the leader vehicle. In some embodiments, the leader vehicle is a lawnmower. In some embodiments, the leader vehicle can include at least one sensor. In some embodiments, the flock of vehicles operate in an inverted V-shape configuration. In some embodiments, the leader vehicle and the follower vehicle are connected via a retractable cable. In some embodiments, a sensor of the leader vehicle can detect a unique feature on a follower vehicle. In some embodiments, a drone can be coupled to a leader vehicle. In some embodiments, an autonomous vehicle can utilize a safety wire.

A connector includes a male, key-like member that is operably received in a female connector body. The key-like member includes a stem for operative association with a cord or other body and a distal element. The female connector has a body defining a proximal portion for operative association with a cord or other body and a slot extending along a surface of the body to an aperture for receiving a distal element of a first connector element. A first inside channel extends from the slot at a distal end of the connector to a depth from the surface of the slot. A second inside channel extends from the aperture to the first channel. One of the first and second connectors is provided with a sensor. The sensor indicates that the first connector element is located at the distal portion of the inside channel.

A cable pull switch includes a polychotomous sensor configured to provide a reading of at least one of a plurality of values, the reading corresponding to a tension on a pull cable or a linear displacement of an end of a pull cable. A processor coupled to the polychotomous cable pull sensor configured to determine a rate of change of the value of the reading from the sensor and determine an occurrence of a cable pull event, the determination based on the determined rate of change of the value, and determine whether the rate of change of the value of an electrical resistance through the polychotomous cable pull sensor is below a threshold rate of change value, and adjust an upper pull threshold value to a new upper pull threshold value that is based on a present reading of the value of the electrical resistance through the strain gauge.

A safety switch is disclosed herein. The safety switch may comprise: a housing, wherein the housing comprises a mating cam; a face plate, wherein the face plate is coupled to the housing; and a subassembly coupled to the face plate, wherein the subassembly comprises: a base, wherein the base comprises a slot; a cam, wherein the cam is positioned within the base; a pushbutton, wherein the pushbutton comprises a hole; and a pin positioned through the hole of the pushbutton and the slot of the base; wherein the cam, the base, and the pushbutton are mated together with the pin; wherein the subassembly is not rotatable due to the pin.

Safety device with sliding cable, to secure an installation. The device includes a sliding cable with a first attachment eyelet and a second attachment eyelet formed by two end portions, of the sliding cable, respectively closed by a first sleeve and a second sleeve. The first and second attachment eyelet allow to attach and connect the device to two adjacent parts of the installation. The safety device further includes signaling and activation means.

A cable pull switch includes a polychotomous sensor configured to provide a reading of at least one of a plurality of values, the reading corresponding to a tension on a pull cable or a linear displacement of an end of a pull cable. A processor coupled to the polychotomous cable pull sensor configured to determine a rate of change of the value of the reading from the sensor and determine an occurrence of a cable pull event, the determination based on the determined rate of change of the value, and determine whether the rate of change of the value of an electrical resistance through the polychotomous cable pull sensor is below a threshold rate of change value, and adjust an upper pull threshold value to a new upper pull threshold value that is based on a present reading of the value of the electrical resistance through the strain gauge.

A tether kill switch for a motorcycle includes a sensor module and a key. The sensor module is adapted to receive the key and includes a magnetic substrate and at least one sensor. The key is adapted to magnetically couple with the sensor module. A vehicle control system includes a tether kill switch having a sensor module including a magnetic substrate and at least one programmable sensor. A first key and a second key each include at least one unique identifier, wherein the sensor module is adapted to receive either the first key or the second key that are each adapted to magnetically couple with the sensor module. The control system also includes a control unit, wherein the programmable sensor is adapted to identify at least one of the keys by the unique identifier, and send at least one information signal to the control unit based upon the unique identifier.