6results about How to "No signal interference" patented technology

This invention proposes a non-contact identification method and device for minute vibration nodes in structures based on machine vision. The method includes the following steps: S1, image preprocessing and stable feature point screening; S2, frequency band vibration signal decoupling processing; S3, regional controllable Lagrange motion amplification; S4, global normalized phase correlation calculation; S5, phase pseudo-color layer overlay visualization imaging; S6, automatic identification of vibration nodes and nodal lines. The method and device can complete vibration node identification using only a common high-speed camera, eliminating the need for expensive laser scanning equipment, resulting in low hardware cost and high versatility.

The present invention proposes a three-in-one switch regulating device for a natural gas well, comprising: a housing, a valve body, a regulating cylinder, a valve core cylinder, a remote control actuating mechanism, a wellhead pressure sensor, and an external transmission pipeline pressure sensor; the housing is provided with an inlet flange and a detection interface, and both ends of the housing are provided with outlet flanges and an inner interface, the lower end of the valve body is a valve cylinder, and the side wall of the valve cylinder is provided with a side valve hole, and the valve cylinder is fixed in the inner interface; the regulating cylinder is fixedly connected to the constriction of the valve cylinder and extends into the valve cylinder, and a pressure regulating hole is provided on the side wall of the regulating cylinder; the outer side wall and the inner side wall of the valve core cylinder are respectively slidably sealed with the valve cylinder and the regulating cylinder, and the push-pull rod at the upper end of the valve core cylinder passes through the valve body and extends out of the valve body, and is transmission-connected with the remote control actuating mechanism; the detection probe of the wellhead pressure sensor is connected with the detection interface; the detection probe of the external transmission pipeline pressure sensor is connected with the inner end of the outlet flange. The present invention proposes a switch regulating method for a natural gas well, which is implemented by using a three-in-one switch regulating device for a natural gas well.

The invention provides an electronic device. The housing includes a conductive plate. The Sub 6G antenna assembly comprises a Sub 6G radiator and a Sub 6G signal source. The Sub 6G radiator is all or a part of the conductive plate. And the Sub 6G signal source is arranged in the shell. The Sub 6G signal source is electrically connected with the Sub 6G radiator and is used for exciting the Sub 6G radiator to form a target resonance mode supporting a Sub 6G frequency band. The millimeter wave array antenna assembly comprises a millimeter wave radiator array and a millimeter wave signal source. And the millimeter wave radiator array is arranged on the Sub 6G radiator. And the millimeter wave radiator array and the Sub 6G radiator are arranged at an interval. The millimeter wave signal source is electrically connected with the millimeter wave radiator array and is used for exciting the millimeter wave radiator array to support a millimeter wave frequency band. The space occupied by the antenna is reduced while the communication function of the electronic equipment is ensured.

This utility model discloses a multispectral flame detection camera, including a front shell and a rear shell, which are connected by screws. A low-voltage circuit board and a high-voltage circuit board are disposed between the front and rear shells. The low-voltage circuit board and the high-voltage circuit board are connected by screws, and a screw sleeve is sleeved on the outside of the screw, forming a gap between the low-voltage circuit board and the high-voltage circuit board. A night vision filter switcher is installed on the low-voltage circuit board, and a visible light receiver is installed on the night vision filter switcher. A through hole is opened on the high-voltage circuit board, through which the visible light receiver extends to the outside of the high-voltage circuit board. This utility model, by isolating the high and low voltage circuits, ensures that they do not interfere with each other, significantly improving the stability of the application during use. At the same time, through acoustic and optical multimodal sensing, it achieves high-precision flame detection and rapid response in complex environments.

The utility model discloses an explosion-proof audible and visual alarm, which comprises a bus power supply module, an audible and visual alarm module, a first bus power supply module interface, a second bus power supply module interface, a third bus power supply module interface, a fourth bus power supply module interface, a fifth bus power supply module interface, a sixth bus power supply module interface, a fifth bus power supply module interface and a sixth bus power supply module interface, the first main controller module U2 receives and feeds back communication signals and is connected and powered by a fire-fighting two-bus power supply, the first 24V communication isolation module comprises a magnetic latching relay, and a control power supply 24V + and a fire-fighting two-bus form a power supply system or two independent power supply systems; the 24DVC voltage output end connected with the first power system clutch module receives signals of the first 24V communication isolation module or the first main controller module U and outputs the signals to the buzzer drive circuit to give out warning sound. According to the explosion-proof audible and visual alarm of the utility model, two-wire and four-wire working modes are adaptively switched.

The utility model discloses a multifunctional connecting line suitable for automatic production, including wire rod, first connector and accomodating piece, the wire rod includes main road section and a plurality of vice road sections, and the one end of every vice road section is connected fixedly with second connector, and every vice road section includes the sheath, and the sheath includes insulating sleeve, heat -resistant layer, reinforcing layer, metal shielding layer and insulating layer. Through setting accomodating piece on one vice road section, the rest vice road sections are fixed in fixed groove, remove accomodating piece and make all vice road sections align, so that the automatic equipment can directly snatch accomodating piece and make the one end of every vice road section stretch into injection mold, and the insulating body of second connector is formed by injection molding, so that the connecting line is suitable for automatic production, and the metal shielding layer is coated on the surface of reinforcing layer, when the connector connects different equipment simultaneously, even if the distance between each vice road section is very close, signal interference does not occur between each other, and the normal work of connecting line is not affected.