120 results about "Declination angle" patented technology

The invention discloses an anti-tipping control method used for a fork truck. The control method comprises the following steps: 1, detecting attitude parameters of the fork truck in real time; 2, judging whether the fork truck is in a stable state or not according to a detection result obtained in the step 1, if so, executing step 3; otherwise, executing step 4; 3, continuing carrying out a current operation; and 4, controlling a gantry, reducing lift height or/ and reducing declination angle of the gantry. Through adoption of the method, deviation correction can be carried out on the fork truck immediately when the fork trunk is detected to be in an unsteady state, so as to ensure that tipping of goods or the tipping of the whole fork trunk can be avoided, thereby enhancing operation stability and reliability of the fork truck. The invention also provides an anti-tipping control system and a fork truck which comprises the system and has a corresponding technology effect.

The invention relates to a method and a device to automatically track sun according to time control. Based on the basic principle of earth running around sun, the real sun time and declination angle would be calculated. Thus, the elevation and the track running time would be calculated from sunrise to sundown, and the relationship of the tracking running of that day and the next day as well. Then, it would return to the location of sunrise when sundown. The track device is made up of elevation track driver and location track driver. The drivers are made up of reducer that use micro deceleration electromotor or step motor as power a Solar energy collector is fixed on the driver by supporting. The electric machine is controlled by computer. The invention is easy to make, low cost, convenience to maintain, and has a broad application range.

The invention provides a high stability heavy-duty clamp, which consists of a pushing rod 1, a connecting rod 2, clamp arms 3, a clamp head 4, a stander 5 and a pulling rod 6, wherein the clamp arms 3, the clamp head 4, the stander 5 and the pulling rod 6 form a parallelogram mechanism. When the opening amount of a clamp mouth changes, the clamp head 4 always keeps at a horizontal position to limit the declination angle of a forging piece in the vertical clamping so as to improve the clamping stability of the clamp; the pulling rod 6 of the clamp bears most of the loading torque, reduces the actual work tension and improves the bearing capability of the clamp by more than one time accordingly; the clamp improves the bearing capability by more than 29 percent by using the property of the response blind area of reaction force; and the clamp makes the centrifugal force produced by the front arm part (a front arm 3, the clamp 4 and the pushing rod 6) and the rear arm part( a rear arm 3 and the connecting rod 2) counteract by structure balance, and avoids weakening the pre-tightening holding force by the centrifugal force, so the clamp not only can ensure the clamping stability, but also can rotate quickly to improve the operating speed of the heavy-duty forging machine and improve the production efficiency.

This invention relates to a device and method of detecting the angle of communication antenna downdiping, which comprises the following parts: motor driver (1), phase shifter (2), potentiometer (3). The moving end of potentiometer (3) connects the mobile portion of phase shifter (2) mechanically. The motor driver (1) synchronizes the motion of the phase shifter (2) and potentiometer (3).

The invention discloses an automobile tire burst prevention controller on the basis of the electrical power steering and relates to an automobile safety control device. The automobile tire burst prevention controller on the basis of the electrical power steering comprises an ECU (Electrical Conversion Unit) processor, a data acquisition part, a data processing part, a tire burst display part, a tire burst alarm part, a motor steering control part, a power supply circuit, an upper communication circuit and a fault diagnosis circuit. In the case of tire burst, the tire burst alarm part is started and tire burst information is displayed by the tire burst display part; a steering wheel is detected whether to steer and a steering direction and a steering angle of the steering wheel are detected by the data acquisition part; if the steering wheel does not steer, a steering system of a vehicle is directly controlled to carry out tire burst prevention control by the motor steering control part; if the steering wheel steers, the steering direction, the steering angle and turning velocity information of the steering wheel need to be detected so as to provide parameters for correcting a steering declination angle, then the steering system of the vehicle is controlled by the motor steering control part, and by controlling the steering system of the vehicle, the vehicle is kept moving in the original driving direction after the tire is burst so that the vehicle is avoided being out of control and being deflected when the tire is burst.

The invention relates to a method for controlling automatic perforation of a flexible circuit board. A conventional method depends on manual operations so as to waste labors and have low efficiency. The method comprises the following steps of: firstly calibrating a mounting declination angle of a camera and a mounting declination angle of a Y-axis moving mechanism, calibrating the flexible circuit board, finally automatically perforating the flexible circuit board. Through the method disclosed by the invention, the flexible circuit board can be automatically corrected in a conveyance process so as to ensure that a circle to be perforated of each flexible circuit board is fed into an effective perforation range of a perforation machine, thus the batch automatic perforation operation of the flexible circuit board is realized.

The invention discloses a device and a method for testing the pulse blowing jet included angle and the jet offset angle. The test device comprises a pulse valve, a gas bag, a blow pipe provided with a plurality of nozzles, a gas source processor, an air compressor and a pulse controller, wherein a filling port is arranged on the blow pipe; and an image net board is arranged below the blow pipe. The test method comprises: firstly, filling a colorful developing solution into the filling port, releasing air through pulse of the pulse valve, and spraying the colorful developing solution onto the image net board through the nozzles to form a jet image; secondly, measuring the diameter D and the offset t of the image; and thirdly, calculating the jet included angle and the jet offset angle according to the diameter d of the nozzles and the distance h between the nozzles and the image net board, namely through a formula 2arctan((D-d)/2h) and arctan(t/h). The invention can accurately calculate the jet included angle and the jet offset angle and apply the obtained data to engineering design, makes blown air flow capable of covering the length of the whole filter bag, strengthens the ash removal effect, and prolongs the service life of the filter bag.

An improved irrigation sprinkler nozzle is provided for enhanced short range or close-in distribution of water for irrigating vegetation and the like positioned relatively close to the sprinkler. The improved sprinkler nozzle includes a nozzle passage for outward projection of a water stream, at least a portion of which is defined by a generally vertically oriented, fan-shaped spray pattern. A lower margin of the nozzle passage defining this fan-shaped pattern is lined with a plurality of forwardly extending ramps each formed with a selected width and a different declination angle. A portion of the water discharged through the nozzle passage is forced and guided downwardly along these ramps for enhanced close-in distribution of water near the sprinkler.

A tracking system for reflecting electromagnetic radiation from a source to a target area, having at least one reflecting surface or mirror mounted to a support that fixes the reflecting surface orientation to focus electromagnetic radiation on the target area when the reflecting surface is at a first location at a first predefined time. The system has a path with at least the first location and a second location. The reflecting surface is movable along the path to maintain focus on the target area. The reflecting surface may have an orientation with a fixed declination angle and fixed hour angle. The source may include a moving source such as the Sun.

The invention provides an earth-axis type solar light condenser, which pertains to the heat utilization of solar energy. The solar light condenser traces by an earth-axis single axis, guarantees that the sun light is converged on a fixed point on the extended line of the earth axis during the tracing of sun light, and overcomes the shortcomings of prior light condenser such as complex tracing way and the variable condensed target. The rotary shaft of the light condenser is controlled by a synchronous motor, and traces the solar time angle; when the condensing lens is 45 degree to the rotary shaft, the condensing lens is at its zero; the tilt angle of the condensing lens is adjusted periodically so that the angle change of the condensing lens is half of the change in the declination angle. The shape of the condensing lens is a non-rotary symmetric curve allowing the calibration of astigmatism, for example, a tyre surface, which has light-condensing performance higher than spherical surface and parabolic surface, and the manufacturing way is similar to that for a parabolic surface. The light condenser can meet demands from the people in living, for example, boiled water, radiator and air conditioner, etc. By using a secondary light condenser, a high temperature for industrial production can be achieved, for example hydrogen manufacturing by solar energy, etc.

The present invention discloses one kind of sea energy and wind energy combining power generator with arced toothed chain as transmission mechanism. The chain wheel has wheel teeth comprising assembled rollers and cheese and inner hex head screws, and chain plates comprising meshed teeth and combining arcs. The vanes are installed on the chain in the declination angle depending on the water flow direction and speed. The present invention converts the wavy and directional water flow into rotation, obtains mechanical energy in controlled speed and adjustable power and converts wind energy, sea energy and water energy into electric energy.

The invention discloses a method for calculating the declination angle of an antenna of a mobile communication base station, which comprises the following steps of: acquiring information of all outdoor macro base station cells in an area needed to be calculated; calculating all cells within a maximum search distance set by a main cell so as to form a neighbor cell set; carrying out directional signal intensity contrast on the coverage direction of the main cell by adopting a directional signal intensity contrastive analysis method; circularly calculating discrete geographical position points; calculating the main coverage cell of a single discrete geographical position point, calculating the signal intensity of each discrete geographical position point, and calculating a main service cell of the discrete geographical position point according to path loss; calculating the coverage distancerection of each main cell according to the home condition of the main service cell of each discrete geographical position point; and calculating to obtain the declination angle of the antenna of each cell according to the altitude of the antenna of each cell and the coverage distancerection of each cell. The method has the characteristics of overall unified calculation and high degree of automation, so that the accuracy and the speed in the calculation of the declination angles are remarkably improved.

The invention discloses an experimental apparatus for sunlight projection simulation. The experimental apparatus comprises a case, an equatorial plane plate, a time dial disc and a ground plane plate. The angle of the equatorial plane plate can be adjusted correspondingly according to seasons, and the angle of the ground plane plate can be adjusted automatically according to geographic latitudes. The time dial disc can rotate freely by 360 degrees. Through placement of a building model on the ground plane plate and combination of irradiation of a spotlight source, various sunlight projection conditions under comprehensive influences of multiple factors can be accurately and visually simulated. The experimental apparatus can simulate static or dynamic projection conditions of buildings at different longitudes and latitudes, time, declination angles and sun altitudes, and has the advantages of compact structure, high automation degree, high accuracy, high visual effect and the like, thereby being of great significance in architectural design and urban planning and design and being particularly applicable to sunlight projection simulation and the like during architectural design or architecture teaching.

The present invention relates to an automatic control wheelchair. The wheelchair is equipped with such a control mode switching system. The system includes: an acceleration measuring instrument, which is arranged on the wheelchair, and is used to detect the acceleration value of the wheelchair, and when the acceleration value of the wheelchair When the acceleration threshold is greater than the preset acceleration threshold, an acceleration warning signal is sent; the deflection angle detection device is set on the wheelchair to detect the deflection angle value of the wheelchair, and when the deflection angle value of the wheelchair is greater than the preset deflection angle threshold value, a deflection angle detection device is sent. Angle early warning signal; ARM11 processing equipment, used to send a fall alarm signal when receiving the acceleration early warning signal and receiving the deflection angle early warning signal; image acquisition equipment, used to collect high-definition image data for wheelchair users, to obtain a high-definition target image; wherein, the ARM11 processing device realizes switching of the control mode of the wheelchair based on the output of the image acquisition device.

The embodiment of the invention provides a broad-band antenna system, a base station and a method for adjusting the declination angle of a broad-band antenna, relates to the technical field of communication and aims at effectively reducing the cost. The broad-band antenna system comprises a first antenna unit and a second antenna unit, wherein a phase shift unit is connected between the first antenna unit and the second antenna unit, the phase shift unit connected between the first antenna unit and the second antenna unit is controlled by an electric tuning motor, under the rotation of the electric tuning motor, the phase shift unit connected between the first antenna unit and the second antenna unit is used for simultaneously adjusting the declination angle of the first antenna unit and the declination angle of the second antenna unit. The invention can be used in a wireless communication system.

The invention discloses an inexpensive high-precision two-dimensional sun tracking mechanism used for concentrating to generate power. The two-dimensional sun tracking mechanism is characterized in that a one-dimensional rotating frame, a two-dimensional rotational mesosome framework, a latitude adjuster, a declination angle adjuster and a tracking deviation indicator are designed; the one-dimensional rotating frame is connected with a right-ascension axle and the two-dimensional rotational mesosome framework sleeved on an outer ring of the right-ascension axle; a carrier platform framework is divided into a south block and a north block, the two blocks are respectively connected with an upper side frame and a lower side frame of the two-dimensional rotational mesosome framework, and condensing lenses, photovoltaic cells, and the like, are installed on the carrier platform framework; and the right-ascension axle parallel to the earth axle rotates at a fixed speed and drives a carrier platform with an included angle (equal to the declination angle on the same day) with the right-ascension axle to rotate along with the sun. The two-dimensional sun tracking mechanism has the advantages of simple tracking method, high tracking accuracy, balanced deadweight of the device from all directions due to the layered and symmetrical carrier platforms, saved material, small wind resistance and driving power, low fabricating cost of the complete machine, effectively reduced cost of concentrating solar photovoltaic power generation and medium-high heat utilization device and improved efficiency.

The invention discloses a photovoltaic module fixing rack. The fixing rack comprises a photovoltaic module, a bracket, a left support, a right support and a base. The photovoltaic module is mounted on the upper portion of the bracket. The left support is composed of a sleeve and an inner rod. The upper end of the sleeve is firmly welded to the lower portion of the bracket. The lower end of the inner rod is connected with the base through a hinge. The inner rod can move up and down in an inner cavity of the sleeve. The inner rod and the sleeve are located and connected through a locking screw on the side portion. The upper end of the right support is firmly welded to the lower portion of the bracket. The lower end of the right support is connected with the base through a hinge. The photovoltaic module fixing rack is reasonable in structural design, convenient to install and excellent in stability; the declination angle of the base is changed by adjusting the length of a supporting rod, so the fixing rack can be installed and used on an inclining ridge, and the requirements for installing the solar photovoltaic module in different installation environments are met.

The invention provides a winch with an angle-adjustable winding drum axis, which comprises a winding drum, a frame and a steel wire rope. One end of the frame is hinged to a carrier supporting the winch, and the other end of the frame is connected with the carrier supporting the winch through an adjusting oil cylinder. When the winch works, a declination angle between the frame and a winding drum vertical plane can be adjusted correspondingly along with the steel wire rope coiling in and coiling out of the drum under driving of the adjusting oil cylinder, and the declination angle between the steel wire rope and the winding drum vertical plane is reduced. The winch greatly reduces abrasion between the inlet and outlet steel wire rope and an adjacent rope ring, prolongs service life of the steel wire rope, is simple and reasonable in structure, strong in bearing load and easy and convenient to install, solves the problem that relevant technology can not solve the problem of severe abrasion of the steel wire rope of the winch fundamentally, and fills a gap in the technical field. The winch is especially applicable to machines with winches for long-time heavy-load operation, such as rotary excavating drilling machines, and is also widely suitable for other machinery using winches.