38results about How to "Long control distance" patented technology

The invention discloses a smart television remote controller man-machine interaction method. A remote controller and a smart television are connected by adopting wireless and infrared modes, the remote controller is provided with an infrared transmitting head, a touch area and buttons, a multi-point touch control technology based on a projective capacitor is adopted in the touch area, the touch area supports multi-point touch control, and multiple targets can be operated at the same time, and the operation modes include a mouse-imitated operation mode and a touch control working mode. Compared with an existing man-machine interaction method, the smart television remote controller man-machine interaction method uses the wireless connection, the operation distance is long, no angle restriction exists, data transmission quantity is large, and an infrared transmitter is matched with an infrared camera of a host computer end and is used for focus locating and operation of the remote controller. The designed smart television remote controller man-machine interactive operation method enables the operation of the smart television main computer end to be quite convenient and fast, and the smart television remote controller man-machine interaction method has the advantages that operation is flexible, adaptability is wide, and convenience and efficiency are achieved.

The invention relates to the technical field of the combination of environment monitoring and wireless control, in particular to a system capable of simultaneously monitoring a plurality of pathogenic microorganism aerosol pollution colonies. The system is characterized by comprising a control terminal and at least one microorganism sampler, and data transmission between a wireless module inside the control terminal and a radio frequency module of the microorganism sampler is performed in a wireless transmission mode. In the invention, a wireless networking technology is utilized to realize multipoint sampling with multiple samplers at the same time, one control terminal in a certain distance is used for unified control, and the problem of real-time, intelligent and multi-place acquisition is solved. The invention has the advantages that the system is easy to carry, small in size, wider in control range and farther in control distance, the control is more real-time, gas circuit connections are fewer, the suction of sampled gas is more stable, the separation of gas in water is more complete, a monitoring result is accurate and reliable, and better personal safety can be ensured by utilizing the system to monitor personnel.

The invention relates to the technical field of lifting, in particular to a controllable high equipment disassembling device and method. The controllable high equipment disassembling device comprises a supporting rod (1), fixing hoops (2), a holding rod head (3), a lifting rope sleeve mechanism and a control mechanism, wherein the fixing hoops (2) are used for fixing the supporting rod (1) to a to-be-disassembled equipment fixing base; the holding rod head (3) is rotationally connected to the top of the supporting rod (1); the lifting rope sleeve mechanism is arranged on the supporting rod (1) and used for clamping and lifting to-be-disassembled equipment (4); and the control mechanism controls the lifting rope sleeve mechanism to work. According to the controllable high equipment disassembling device and method, disassembling is convenient, the cost is low, the occupied space is small, and line equipment is not prone to being damaged.

The invention discloses an automatic positioning flame detection system for a three-dimensional space. The automatic positioning flame detection system comprises a front-end monitoring unit connected with a fire scene, a control center connected with the front-end monitoring unit as well as a firefighting linking unit connected with the control center. According to the automatic positioning flame detection system, image acquisition is carried out on the scene at different orientations by adopting more than two sensors in high-resolution infrared CCD (Charge Coupled Device) image type flame detectors; and intelligent fire identification processors are used for analyzing a video image by using a fire flame image identification algorithm and an image three-dimensional algorithm, capturing fire flame information of the scene, analyzing flame position, fire alarm information, the positions of the flame detectors and the flame orientation, transmitting the analysis result to a fire monitoring and managing platform and outputting a signal to an automatic fire alarming control host to the firefighting linking unit. The automatic positioning flame detection system has the characteristics of high positioning precision, long monitoring distance, great protection area and quick speed response and can better meet the requirement of great-space occasions on fire monitoring.

The invention discloses a small differential high-voltage output relay structure. The relay control box includes a bottom plate, a side plate, a cover plate and a wiring board assembly; the bottom plate in the side plate is provided with a circuit board support and a relay support , the circuit board bracket is connected with a control circuit board, and the relay bracket is connected with a relay; the circuit of the control circuit board includes an input power supply, a three-terminal voltage regulator circuit, a differential drive circuit, a spike suppression circuit, and a control signal anti-shake circuit , Relay drive circuit, power output circuit and status indication circuit. The present invention has the advantages of small size, light weight, strong load capacity, excellent reliability, high insulation resistance, good environmental adaptability, difficult signal attenuation, strong anti-interference ability, low power consumption, strong reliability, and easy implementation of RS485, RS232, RS422, CAN, CC‑LINK bus remote control, accurate control, sensitive action, compatible with computer digital control system, and strong environmental adaptability.

The invention relates to a wireless control circuit for an automatic thin-wall copper tube fresh air handling machine. Traditional wireless control circuits are mostly active circuits, especially trigger signals are from large-capacity electric equipment including an air conditioner and the like, and therefore the defects that a sampling circuit is complex, a control circuit is prone to being interfered by the outside world and a control distance is short exist. According to the wireless control circuit, when an air conditioner compressor is started and works, currents serve as a signal source and by the utilization of the current transformer principle, and voltage induced by a secondary side is processed and then serves as a signal source of the control circuit and a power source provided for a transmission circuit. A control signal is coded and then transmitted, passive and wireless data transmission and reception are achieved, and then controlled electric appliances including the fresh air handling machine and the like are controlled. The wireless control circuit for the automatic thin-wall copper tube fresh air handling machine is simple, passive, low in code coincidence, reliable in control and long in control distance.

The invention discloses an automatic control system of a fracturing blender truck. The automatic control system comprises a display control panel, a controller, a data acquisition system and a control actuator. The data acquisition system comprises a mixing cylinder liquid level sensor, a discharge pressure sensor, a sand density sensor and an additive density sensor; the control actuator includes a suction hydraulic motor, a manifold exhaust hydraulic motor, a sand inlet hydraulic motor and an additive hydraulic motor, oil ports of the four hydraulic motors are communicated with a hydraulic pump through an electromagnetic valve; and the controller is, through a line, connected with the display control panel, the electromagnetic valve, the mixing cylinder liquid level sensor, the discharge pressure sensor, the sand density sensor and the additive density sensor. The beneficial effects of the invention are that: the automatic control system and the method of the fracturing blender truck are suitable for various harsh environment conditions, and are simple in operation and reliable in performance; the automatic control operation reduces the labor intensity of workers and improves the work efficiency; the real-time collection and analysis of all data are realized; the control is accurate, highly efficient, greatly real-time; and the safety of operators is guaranteed.