45results about How to "Solve power supply difficulties" patented technology

The invention discloses the technical field of road surface deicing, in particular to an expressway tunnel portal road surface deicing device, which comprises a power supply module, a remote sensing detection device, an active deicing device, an information issuing device and a central processing unit, wherein the remote sensing detection device collects tunnel portal road surface information and sends the information to the central processing unit for analysis and judgment, the opening and closing of the active deicing device are controlled, and the road surface information is displayed through the information issuing device. The expressway tunnel portal road surface deicing device has the advantages of monitoring the situation of the tunnel portal road surface in real time and eliminating the factors that affect the anti-skid performance on the tunnel portal road surface to ensure the safe passage of vehicles.

The invention discloses a self-driving agricultural Internet-of-Things wind velocity sensor based on a friction nano generator, belongs to the fields of agricultural intelligence and environmental friendliness, and aims at achieving the purposes of agricultural wind velocity measuring, the collection of wind, and the conversion of the wind into friction electricity to achieve convenient storage. Awind nano friction generator and a wind velocity sensor system are included, the wind velocity sensor system comprises a rectifying circuit and an energy storing device, an alternate current electricsignal is generated by the wind power nano friction generator, the alternate current electric signal is rectified into an alternate current and direct current mixed impulse direct current electric signal by the rectifying circuit, the impulse direct current electric signal is used for measuring wind velocity, part of the electric energy is stored in the energy storage device when necessary, and the wind velocity sensor has the advantages that the electric energy can be converted and stored.

The invention relates to a water level monitoring device and monitoring method based on plastic fiber optic light time domain reflection. The device comprises a vertical rod fixed in a river bed of ato-be-tested water body, and further comprises a plastic fiber optic water level detector spirally winding around the position, close to the bottom, of the vertical rod, the position, close to the top, of the vertical rod is provided with a control box, the control box is internally provided with a control device, the top of the vertical rod is provided with a solar panel, the solar panel is communicated with the control device and provides power to the control device, the top of the control box is provided with a GPRS antenna, and the control device is communicated with the GPRS antenna and the plastic fiber optic water level detector respectively; the water level monitoring device and monitoring method based on the plastic fiber optic light time domain reflection can achieve remote and automatic monitoring and early warn dangerous situations.

The invention discloses an embedded mini electronic device capable of measuring parameters of a blow-off pipe, and relates to the technical field of communication. The device uses a streamline embedded casing design, and comprises a power supply, a single-chip microcomputer, a film pressure sensor, a water flow sensor, a turbidity water quality sensor, a TTL level signal processing module, a wireless communication module and an RS485 wired communication module. Measurement data of the film pressure sensor, the water flow sensor and the turbidity water quality sensor is wirelessly sent to the mobile terminal via the wireless communication module, or to a ground pile via the RS485 wired communication module, so that the ground pile can send the sensor measurement data to a background servervia the LoRa wireless communication network or NB-IoT wireless communication network. Thus, one blow-off pipe measuring device can measure multiple parameters, and can integrated with synchronous production of the blow-off pipe, and the parameters are read via a smart phone APP.

The invention relates to a wind, light and diesel storage independent power supply switching system for a communication base station. The system comprises a wind power generator, a photovoltaic power generation array, a storage battery set, a diesel generator set, a communication base station load, a micro-network monitoring system, a digital signal processor, an alternating current load, DC / AC converters and a controllable load, wherein, an electric energy output end of the wind power generator is connected with an alternating current power supply input end of a first AC / DC converter, a direct current power output end of the first AC / DC converter is connected with an input end of a first DC / DC converter, an electric energy output end of the photovoltaic power generation array is connected with an input of a second DC / DC converter, an electric energy output end of the storage battery set is connected with an input end of a third DC / DC converter, and an electric energy output end of the diesel generator set is connected with an alternating current power supply input of a second AC / DC converter. According to the wind, light, diesel storage independent power supply switching system for the communication base station, and when a diesel engine accesses or exits from the system, the voltage of a direct current bus keeps stable all the time.

The invention belongs to the technical field of rail transit, and in particular relates to a rail energy collection device. An orbital vibration energy harvesting device provided by the present invention includes a force plate, a transmission assembly, a rotation assembly, a power generation assembly and an energy storage assembly, the transmission assembly includes a first transmission assembly and a second transmission assembly, and the rotation assembly includes a bevel gear group and the main shaft, the bevel gear set is connected to one end of the main shaft, the first transmission assembly and the second transmission assembly are respectively connected to the main shaft through the bevel gear set, the bevel gear set is provided with a one-way bearing, and the one-way bearing cooperates with the first transmission The assembly and the second transmission assembly realize continuous unidirectional rotation of the main shaft, the first transmission assembly and the second transmission assembly are connected to the force plate, the rotation assembly is connected to the power generation assembly, and the power generation assembly is connected to the energy storage assembly. Powering the trackside equipment through the railway self-power supply system can solve the difficult problem of low-voltage power supply for auxiliary equipment in the remote area railway operation to a certain extent.

A wind nano-friction generator belongs to the fields of agricultural intelligence and environmental protection, and is provided in order to solve the problem on the measurement of agricultural wind speed and the collection and transformation of agricultural wind speed into frictional electricity. The wind nano-friction generator comprises a connecting rod with a circular chassis at the bottom, a sleeve, a blade disc, the circular chassis, electrodes and conductors. The sleeve sleeves the periphery of the solid connecting rod. The upper part of the sleeve is connected with a plurality of linkage rods. Hemispherical wind blades are arranged at the end of the linkage rods respectively. The blade disc sleeves and is fastened to the periphery of the sleeve. The electrodes are respectively arranged on the opposite surface of the blade disc and the circular chassis. One electrode is covered with a friction material, and a nano-scale metal oxide is grown on the other electrode. The effect is that wind energy is converted into electric energy by friction and stored.

The invention discloses a power supply support for rotatably connecting. The power supply support comprises a sliding ring, a support arm and a wiring terminal, wherein the support arm and the slidingring are integrally formed, the support arm is fixedly connected to an outer wall of the sliding ring, the support arm and the sliding ring both are conductors, a liquid accumulation cavity is formedin the support arm, one end of the liquid accumulation cavity extends to a sliding direction and penetrates through a wall of the sliding ring, an opening is formed in an inner wall of the sliding ring, a conductive liquid is arranged in the liquid accumulation cavity, and the wiring terminal is arranged on the support arm and is used for connecting a power supply; and when the sliding ring sleeves a rolling body, the inner wall of the sliding ring is in contact with a surface of the rolling body and can rotate relative to the surface of the rolling body, the conductive liquid in the liquid accumulation cavity flows out of the opening of the liquid accumulation cavity and is in contact with the surface of the rolling body, and the power supply is used for supplying power to the rolling body in a rotating state by the sliding ring and the conductive liquid. By the power supply support, the problem of power supply difficulty of the rolling body in the rotating state can be solved.

The self-driven agricultural Internet of Things wind speed sensor nano friction electricity generation method belongs to the field of agricultural intelligence and environmental protection. In order to solve the problem of agricultural wind speed measurement and collect it and convert it into frictional electricity for easy storage, the hemispherical shape of the wind speed sensor is driven by wind energy. When the fan blade rotates, the sleeve of the wind speed sensor rotates, so that the blade disc on it rotates with it, and during its rotation, it makes rotational contact with the disc chassis that is opposite and in contact with it, and the blade disc and the circular chassis Electrodes are arranged on the opposite surface, one electrode is covered with friction material, and the other electrode is grown with nano-scale metal oxide. The rotating contact causes the friction material to rotate and contact with the nano-scale metal oxide, so that the material is frictionally generated by wind energy, and the effect is Realized electric energy storage and measured wind speed.