Abstract: A lost circulation detection device includes a first detection member and a second detection member, a first signal transmitter and a first signal receiver are disposed on the first detection member, and the first signal transmitter transmits a signal along an axial direction of a rockshaft so that the first signal receiver acquires data information of drilling fluid in the axial direction of the rockshaft; a fluid channel penetrating through the second detection member is disposed in the second detection member, and the fluid channel is configurable to be in communication with the rockshaft; a second signal transmitter and a second signal receiver are disposed oppositely on two sides of the fluid channel, and the second signal transmitter transmits a signal along a center line of a second accommodating groove, so that the second signal receiver acquires data information of drilling fluid in a circumferential direction of the rockshaft.

Abstract: The present invention discloses a multifunctional bicycle pilot lamp and relates to the technical field of bicycle lamps. The multifunctional bicycle pilot lamp includes a shell, a colorful lamp bead, an intelligent control module, a USB charging module, and a mobile application. The mobile application is wirelessly connected to the intelligent control module. The multifunctional bicycle pilot lamp provided by the present invention is intelligently controlled in a lower power consumption mode of wireless communication. Wireless control enables a user to operate various functions of lamp conveniently without complicated wired connections. A rider can select different colorful light modes according to his/her own preference to exhibit his/her personality and style and improve the visibility, so as to avoid a collision risk. Furthermore, the multifunctional bicycle pilot lamp has an obvious warning effect on a road with complex traffic, and improves the cohesive force of a team through the matching light.

Abstract: The present invention discloses a method and device for controlling an intelligent device, a computer device, and a storage medium. A major technical solution is as follows: acquiring, by a mobile terminal, broadcast messages of surrounding intelligent devices by means of Bluetooth scanning; displaying the broadcast messages of the intelligent devices with Bluetooth signal intensities exceeding a target numerical value on a screen interface of the mobile terminal; determining the intelligent device with the strongest Bluetooth signal displayed on the screen interface of the mobile terminal as a first intelligent device, and establishing a Bluetooth connection with the first intelligent device; and sending, by the mobile terminal, a device identification of a target intelligent device and a control instruction selected by a user from the intelligent devices displayed on the screen interface for controlling the target intelligent device to the first intelligent device when receiving the control instruction.

Abstract: A lost circulation detection device includes a first detection member and a second detection member, a first signal transmitter and a first signal receiver are disposed on the first detection member, and the first signal transmitter transmits a signal along an axial direction of a rockshaft so that the first signal receiver acquires data information of drilling fluid in the axial direction of the rockshaft; a fluid channel penetrating through the second detection member is disposed in the second detection member, and the fluid channel is configurable to be in communication with the rockshaft; a second signal transmitter and a second signal receiver are disposed oppositely on two sides of the fluid channel, and the second signal transmitter transmits a signal along a center line of a second accommodating groove, so that the second signal receiver acquires data information of drilling fluid in a circumferential direction of the rockshaft.

Abstract: The present invention discloses a method and device for controlling an intelligent device, a computer device, and a storage medium. A major technical solution is as follows: acquiring, by a mobile terminal, broadcast messages of surrounding intelligent devices by means of Bluetooth scanning; displaying the broadcast messages of the intelligent devices with Bluetooth signal intensities exceeding a target numerical value on a screen interface of the mobile terminal; determining the intelligent device with the strongest Bluetooth signal displayed on the screen interface of the mobile terminal as a first intelligent device, and establishing a Bluetooth connection with the first intelligent device; and sending, by the mobile terminal, a device identification of a target intelligent device and a control instruction selected by a user from the intelligent devices displayed on the screen interface for controlling the target intelligent device to the first intelligent device when receiving the control instruction.

Abstract: The present invention relates to the technical field of intelligent switches, and discloses an intelligent wall panel switch which can preset scene modes and is simple in operation, including a switch body and a controller arranged within the switch body, wherein the controller includes a single live wire power obtaining function module, a power management module, a Bluetooth module and a function key input module. The single live wire power obtaining function module is used for obtaining a voltage source input by a phase line, the power management module is used for receiving a stepped-down voltage, and the Bluetooth module is used for receiving a regulated voltage. The Bluetooth module establishes a wireless communication connection with LED lamps for receiving instruction information input by operation keys. The Bluetooth module correspondingly adjusts the scene mode of the LED lamps according to the instruction information.

Abstract: A server and method detects work statuses of air compressors in a pipeline system. The server reads pipeline system data and air compressor data measured from the pipeline system and determines if work status of an air compressor needs to be changed. A warning message is generated by the server and sent to an alarm computer in response to a determination that the work status of the air compressor needs to be changed. The server saves the pipeline system data and the air compressor data into a database system.