Abstract: Embodiments of this application provide a pan-tilt, a method for controlling a pan-tilt, and a photographing apparatus. A magnetic-field generating apparatus for generating uniform detection magnetic field is mounted on a pan-tilt base of the pan-tilt, a conductor rod is mounted on a pan-tilt head of the pan-tilt, and two ends of the conductor rod are electrically connected to a voltage detection unit. In this way, in a process of the pan-tilt head rotating relative to the pan-tilt base, the conductor rod cuts magnetic induction lines of the detection magnetic field and generates an induced electromotive force. In addition, in the embodiments of this application, the induced electromotive force on the two ends of the conductor rod can be detected through the voltage detection unit.

Abstract: Embodiments of the present disclosure provide a data transmission method and apparatus, a system, an electronic device, and a storage medium. The method is applied to a relay device in an intelligent collecting system including a host device and the relay device independently deployed within short range; the relay device includes a first network module configured to access a first network and a second network module configured to access a second network; the method includes: receiving from the host device first data including environmental data collected by the host device; selecting the first network or the second network as an access network for accessing a wide area network according to a network quality of the first network and the second network; and transmitting second data to a cloud platform connected with the wide area network through the access network, the second data including the environmental data.

Abstract: The present application discloses a light supplementing apparatus for a device with a camera and a device with a camera. The light supplementing apparatus is provided with two sensor modules on two horizontal sides of a camera, and detection directions of the two sensor modules are horizontally and reversely biased with respect to a photographing direction of the camera so that an overall detection range of the two sensor modules is larger than the photographing range of the camera. Thus, when the ambient illumination is low, the device with a camera may recognize a target object through the two sensor modules and turn on a light supplementing lamp only before the target object is about to enter a photographing visual field of the camera, instead of having to turn on the light supplementing lamp all the time, which reduces the power consumption of light supplementing.

Abstract: The present application discloses a light supplementing apparatus for a device with a camera and a device with a camera. The light supplementing apparatus is provided with two sensor modules on two horizontal sides of a camera, and detection directions of the two sensor modules are horizontally and reversely biased with respect to a photographing direction of the camera so that an overall detection range of the two sensor modules is larger than the photographing range of the camera. Thus, when the ambient illumination is low, the device with a camera may recognize a target object through the two sensor modules and turn on a light supplementing lamp only before the target object is about to enter a photographing visual field of the camera, instead of having to turn on the light supplementing lamp all the time, which reduces the power consumption of light supplementing.

Abstract: Embodiments of this application provide a pan-tilt, a method for controlling a pan-tilt, and a photographing apparatus. A magnetic-field generating apparatus for generating uniform detection magnetic field is mounted on a pan-tilt base of the pan-tilt, a conductor rod is mounted on a pan-tilt head of the pan-tilt, and two ends of the conductor rod are electrically connected to a voltage detection unit. In this way, in a process of the pan-tilt head rotating relative to the pan-tilt base, the conductor rod cuts magnetic induction lines of the detection magnetic field and generates an induced electromotive force. In addition, in the embodiments of this application, the induced electromotive force on the two ends of the conductor rod can be detected through the voltage detection unit.