Abstract: Embodiments of the present application provide a method and a device for controlling train formation tracking, the method comprising: obtaining a current distance between a first train and a second train in a train formation, wherein the first train is adjacent to the second train and located behind the second train; determining a target tracking mode of the first train based on the current distance, wherein the target tracking mode is one of a speed tracking mode, a distance tracking mode and a braking mode; and tracking the second train, by the first train based on the target tracking mode. Tracking efficiency is improved according to the method of the embodiments of the present application.

Abstract: The disclosure discloses an intelligent terminal energy saving method based on artificial intelligence (AI) prediction. The method includes: collecting application (APP)-related operation data on the intelligent terminal; carrying out AI analysis on the APP-related operation data collected, to predict timing and a restriction measurement to restrict an APP in a background; and adopting the restriction measurement to restrict the APP in the background at the timing predicted. Corresponding to the method, the disclosure further discloses an intelligent terminal energy saving device based on AI prediction. Using the technical schemes disclosed in the disclosure, the power consumption of applications on a portable intelligent terminal can be reduced, and the battery life can be extended, without affecting the user experience.

Abstract: A digital full-bandwidth direct-forwarding racon system and a working method adopt a direct forwarding architecture, which combines a digital broadband DRFM real-time forwarding technology and an encoding response architecture with dots replacing a line. A transmitting antenna and a receiving antenna operate independently and simultaneously, and directly and indiscriminately encode and forward all of the radar query signals in an operating frequency band, thus preserving complete waveform information while realizing a Morse encoding of the response information. The digital full bandwidth direct forwarding racon system is equivalent to a target with a special target characteristic, where when a radar signal within the operating frequency band irradiates the target, an echo signal with a specified Morse encoding modulation characteristic would be generated.

Abstract: The present disclosure belongs to the field of automobile chassis suspension system tests, and provides fatigue test equipment for an automobile chassis simulation road test. The fatigue test equipment can simultaneously test the simulation road test fatigue durability of automobile chassis parts such as the wheel and suspension system and the like, ensures that a test state of the tested wheel and suspension system is close to a real automobile state, and simulates and reproduces a load which an automobile chassis bears in the real road running process in a laboratory.

Abstract: The present disclosure belongs to the field of automobile chassis suspension system tests, and provides fatigue test equipment for an automobile chassis simulation road test. The fatigue test equipment can simultaneously test the simulation road test fatigue durability of automobile chassis parts such as the wheel and suspension system and the like, ensures that a test state of the tested wheel and suspension system is close to a real automobile state, and simulates and reproduces a load which an automobile chassis bears in the real road running process in a laboratory.

Abstract: A plastic wrought magnesium alloy includes a Mg—Al—Bi—Sn—Ca—Y alloy, prepared from the following chemical components in percentage by mass: 3 to 6.0% of Al, 1 to 3.0% of Bi, 0.5 to 2.0% of Sn, 0.02 to 0.05% of Ca, 0.02 to 0.05% of Y and the balance of Mg, in which the percentage sum of Ca and Y elements is more than 0.05% and less than 0.1%.

Abstract: The disclosure discloses an intelligent terminal energy saving method based on artificial intelligence (AI) prediction. The method includes: collecting application (APP)-related operation data on the intelligent terminal; carrying out AI analysis on the APP-related operation data collected, to predict timing and a restriction measurement to restrict an APP in a background; and adopting the restriction measurement to restrict the APP in the background at the timing predicted. Corresponding to the method, the disclosure further discloses an intelligent terminal energy saving device based on AI prediction. Using the technical schemes disclosed in the disclosure, the power consumption of applications on a portable intelligent terminal can be reduced, and the battery life can be extended, without affecting the user experience.

Abstract: Disclosed is a method for preparation of an aluminum matrix composite including preparation of in-situ reaction mixed salt, preparation of a TiB2 enhanced 6061 aluminum matrix composite and ultrasonic treatment of a composite melt. The obtained composite contains TiB2 enhancing particles which are fine in size and uniform in distribution and may remarkably improve the mechanical performance indicators of a matrix alloy. In the TiB2 enhanced 6061 aluminum matrix composite according to the present disclosure, the size of the TiB2 enhancing particles is 200-500 nm and the particles are uniform in distribution in the matrix alloy.

Abstract: A thermal treatment and shot peening method for a wheel, including: heating a wheel blank to T1, and preserving the heat for t1; fast heating the wheel blank to T2, and preserving the heat for t2; performing quenching treatment, wherein a quenching medium is at temperature of T3, and the quenching transfer time is t3; performing aging treatment at aging temperature of T4, and preserving the heat for t4; performing first-stage shot peening; and performing second-stage shot peening.

Abstract: An automatic hub type identifying device and a method for identifying a hub type using the device are provided. The device includes a feed roller bed, an electronic belt scale, a transfer roller bed, an identification device, a discharge roller bed and a processor, in which the feed roller bed is configured to convey a hub to the electronic belt scale; the electronic belt scale is in data connection with the processor, and is configured to weigh the hub conveyed by the feed roller bed and transmit the weighing result to the processor; the transfer roller bed is configured to transfer the hub from the electronic belt scale to the identification device; and the identification device includes servo drive devices and micro contact displacement detecting devices connected to the servo drive devices.

Abstract: The present disclosure provides a magnesium alloy and a preparation method thereof. The magnesium alloy comprises: Al: 7.01-9.98 wt %; Zn: 0.1-1.2 wt %; Mn: 0.05-0.2 wt %; Sn: 0.3-2.5 wt %; Sm: 0.1-0.5 wt %; and a balance of Mg.

Abstract: The invention provides an automatic constant pressure device for a hub tire system. The device comprises a valve nozzle, air pipes, valves, a pneumatic slip ring, a hub, a pressure relief valve, a tire, a main shaft, an air storage tank, a vehicle-mounted air source and the like. Two valve holes are machined in the hub of the device. The valve nozzle with a tire pressure sensor is installed at one valve hole, and the pressure relief valve is installed at the other valve hole. The tire pressure is detected by the tire pressure sensor. The valve is controlled to inflate through the valve nozzle, and the pressure relief valve is controlled to relieve the pressure. The device has the characteristics of scientific detection principle, simple and reasonable structure and the like.

Abstract: The disclosure discloses a sprue spreader surface treatment method, which comprises the following steps: preheating the sprue spreader, and carrying out laser scanning on the sprue spreader by using a laser; cleaning the surface of the sprue spreader, drying it by hot air, and polishing the surface to be bright by pneumatic polishing; and cleaning the surface of the sprue spreader again and drying it by hot air, so that the operation is simple, the cost is low, the bonding strength is high, the energy is saved, the environment is protected, and the service life of the sprue spreader can be prolonged.

Abstract: The present disclosure provides a magnesium alloy and a preparation method thereof. The magnesium alloy comprises: Al: 7.01-9.98 wt %; Zn: 0.1-1.2 wt %; Mn: 0.05-0.2 wt %; Sn: 0.3-2.5 wt %; Sm: 0.1-0.5 wt %; and a balance of Mg.

Abstract: A thermal treatment and shot peening method for a wheel, including: heating a wheel blank to T1, and preserving the heat for t1; fast heating the wheel blank to T2, and preserving the heat for t2; performing quenching treatment, wherein a quenching medium is at temperature of T3, and the quenching transfer time is t3; performing aging treatment at aging temperature of T4, and preserving the heat for t4; performing first-stage shot peening; and performing second-stage shot peening.

Abstract: A plastic wrought magnesium alloy includes a Mg—Al—Bi—Sn—Ca—Y alloy, prepared from the following chemical components in percentage by mass: 3 to 6.0% of Al, 1 to 3.0% of Bi, 0.5 to 2.0% of Sn, 0.02 to 0.05% of Ca, 0.02 to 0.05% of Y and the balance of Mg, in which the percentage sum of Ca and Y elements is more than 0.05% and less than 0.1%.

Abstract: The invention provides a method of refining aluminum alloy, which is characterized in that aluminum-based nanometer quasicrystal alloy is used as an aluminum alloy refiner to refine the aluminum alloy; the aluminum-based nanometer quasicrystal alloy does not comprise Si, Fe or Cr; the aluminum-based nanometer quasicrystal alloy consists of (1) Al; (2) Mn and (3) La and/or Ce. The refiner selected in the invention is rare earth-containing alloy which has a strong refinement ability on the aluminum alloy, and is nanometer quasicrystal; after adding the rare earth-containing alloy to melt, the element distribution of the rare earth-containing alloy is more uniform than that of traditional alloy; and nanometer quasicrystal particles substantially increase the number of heterogeneous nucleation particles and improve the grain refinement effect of the aluminum alloy.

Abstract: A device for removing a valve hole sealing substitute from a hub includes an industrial camera, a removal manipulator, a rotary encoder, a rotary spindle, a processor, a frame and a console, wherein the console is installed on the frame, the console is connected to a production line by a roller bed, a color identification camera and the industrial camera are respectively installed on the frame and aligned with the console, the rotary spindle is installed below the console and configured to drive the hub above the console to rotate, and the removal manipulator is arranged above the console. The device and method solve the problem of relying on personnel to remove the valve hole sealing substitute, improve the labor productivity, and improve the automation of the hub production process.

Abstract: A device for removing a valve hole sealing substitute from a hub includes an industrial camera, a removal manipulator, a rotary encoder, a rotary spindle, a processor, a frame and a console, wherein the console is installed on the frame, the console is connected to a production line by a roller bed, a color identification camera and the industrial camera are respectively installed on the frame and aligned with the console, the rotary spindle is installed below the console and configured to drive the hub above the console to rotate, and the removal manipulator is arranged above the console. The device and method solve the problem of relying on personnel to remove the valve hole sealing substitute, improve the labor productivity, and improve the automation of the hub production process.

Abstract: A device for detecting the balance of a hub valve hole that includes a hub conveying roller bed configured to sequentially convey a hub from an upstream of a conveying belt to a hub identification device and a valve hole balance detection device until the hub leaves the valve hole balance detection device, wherein the hub identification device includes an electronic belt scale configured to obtain the weight of the hub and an industrial camera configured to take a photo of a wheel disc of the hub when the hub is conveyed to the hub identification device. The device can accurately identify the hub type and then automatically complete the valve hole compensation function of balance detection through the combination of the above components, program control and an algorithm, thereby improving the automation level and reducing the repeated operation of an operator.