A control method of an electronic device system for diving is provided. The control method includes steps of sending a positioning request signal to the slave device; receiving a feedback signal sent by the slave device, the feedback signal is generated by the slave device responding to the positioning request signal, the feedback signal includes water pressure data; according to the time difference between the sending time of the positioning request signal and the receiving time of the feedback signal, and the signal transmission speed, the relative distance with the slave device is calculated; obtaining the relative direction between the slave device and the master device according to the incoming direction of the feedback signal received by the ultrasonic receiver; calculating the relative depth with the slave device according to the water pressure data in the feedback signal. Furthermore, an electronic device and system for diving are also provided.

The present disclosure relates to a remotely operated underwater vehicle and a control method therefor. The remotely operated underwater vehicle comprises a body having an imaging unit and a control unit; a power unit disposed on the body; a beacon unit for being worn on a part of a user's body, wherein the beacon unit can emit a plurality of optical control signals with different brightness; and the control unit can control the power unit to respond according to the optical control signals collected by the imaging unit to adjust an action and a posture of the body.

A control method of an electronic device system for diving is provided. The control method includes steps of sending a positioning request signal to the slave device; receiving a feedback signal sent by the slave device, the feedback signal is generated by the slave device responding to the positioning request signal, the feedback signal includes water pressure data; according to the time difference between the sending time of the positioning request signal and the receiving time of the feedback signal, and the signal transmission speed, the relative distance with the slave device is calculated; obtaining the relative direction between the slave device and the master device according to the incoming direction of the feedback signal received by the ultrasonic receiver; calculating the relative depth with the slave device according to the water pressure data in the feedback signal. Furthermore, an electronic device and system for diving are also provided.

The present disclosure generally relates to underwater user interfaces. In some embodiments, a method includes at an electronic device with a display and one or more input devices, receiving a first request to display a user interface for accessing a first function of the electronic device. In response to receiving the first request, and in accordance with a determination that the electronic device is under water, the method includes displaying a first user interface for accessing the first function. In response to receiving the first request, and in accordance with a determination that the electronic device is not under water, the method also includes displaying a second user interface for accessing the first function.

A heads-up display comprises a housing, a pressure sealed optical element disposed at a front end of the housing, and a dive computer disposed within the housing. The dive computer includes a display panel. There is a lens disposed in the housing between the infrared cut-off filter and the display panel.

Disclosed is a phone case for diving comprising a housing including a rear housing rotatably connected to one side of front housing and sealingly connected to the other side, and a front housing. A surface of rear housing is connected with a photographing window on one side, and is further connected with an air suction assembly located on one side of photographing window and/or a light-filling assembly located on the other side of air suction assembly. The housing, connected with a function button, has a control module connected inside that is in signal connection with function button and light-filling assembly respectively and connected with phone by Bluetooth. Further disclosed is a method for implementing a phone case for diving, wherein air inside housing is extracted by air suction assembly, so that housing is vacuumed inside for good waterproof performance without steam appearing inside housing, making photographing effect better.

A diving computer with coupled antenna and a water contact assembly is disclosed. The diving computer has at least one radiator element located on or connected to an outermost surface of a bezel of the diving computer and a radio unit having a conductive coupling to said radiator element, for enabling wireless communication between said diving computer and external devices. A conductive water contact surface extends through the housing of the diving computer and a water contact detector circuit is arranged, as a part of an underwater condition sensing circuit, to sense an underwater condition of the device. When water establishes a current path through said underwater condition sensing circuit from the water contact surface to ground, the sensing circuit provides an indication of an underwater condition to the diving computer.

The system for positioning an underwater device including at least two surface transponders comprising a receiver for receiving radio signals transmitted by a geolocation system; each surface transponder comprising: an estimator for estimating at least one radio pseudo-distance; an attachment to a float; and a communicator for communicating information representative of the radio pseudo-distances; and an underwater acoustic transmitter; the underwater device comprising: a receiver for receiving information representative of the radio pseudo-distances; an acoustic signal receiver; a determinator for determining one or more acoustic pseudo-distances between at least two underwater acoustic transmitters and the underwater device; and a calculator for calculating the position of the device in a terrestrial frame of reference centered on one of the surface transponders.

The device (50) includes at least one electronic circuit (52) and a battery (53) provided for powering the circuit, wherein the circuit and the battery are included in a block of hydrophobic material, for example a block of resin (51). The battery is, for example, an inductively charged battery and the device can include optical sockets (56a, 56b, 56c) for fiber-optic cables, so as to avoid all contact of metal parts with water. Such a device is especially suitable for a buoyancy compensator vest, for use as a stabilizer during immersion and as a closed-circuit rebreather.

A system for use by a diver during an underwater dive. An autonomous underwater vehicle (one component of the system, AUV) comprises a component for detecting that the AUV has entered water, an AUV acoustic transceiver, a plurality of AUV sensors, a propulsion unit, a processor for determining dive information and diver information responsive to data from one or both of the AUV acoustic transceiver and the plurality of AUV sensors, and one or more cameras. Diver equipment carried by the diver comprises a plurality of diver sensors and a diver acoustic transceiver for receiving sensed information from the plurality of diver sensors and communicating the sensed information to the AUV, and for receiving information from the AUV acoustic transceiver.