Abstract: A method and a system for simulating contact and interaction between a support member and a chamber surrounding rock mass are provided in the application.

Abstract: A heat press machine includes a base, a first heating portion, a cover, a second heating portion, a first tray, and a second tray. The base is provided with a working platform. The first heating portion is provided on the base, and is located below the working platform. The cover and the working platform are disposed opposite to each other along a vertical direction. The second heating portion is accommodated in the cover, and is provided opposite to the first heating portion along the vertical direction. A middle of the first tray is provided with a cavity for carrying a substrate, and the first tray is detachably carried on the working platform. The second tray is provided with a carrying plane for carrying a transfer object, and is detachably carried on the working platform. The first tray and the second tray are alternately carried on the working platform.

Abstract: An ultraviolet (UV) light-emitting diode (LED) inkjet printer includes a printing member for performing printing on a surface of a substrate, a carrying member configured to continuously pull the substrate so that the substrate can be conveyed forward from the printing member, a supporting platform and a cutting member. The supporting platform is provided in front of the carrying member to support the substrate conveyed from the carrying member. The cutting member is provided above the supporting platform, and includes a guide rail and a cutter. The guide rail extends in a direction orthogonal to a direction in which the substrate is conveyed, and extends at least across an area of the supporting platform for supporting the substrate. The cutter is carried on the guide rail, and is movable along the guide rail. The cutter is configured to abut against and cut the substrate on the supporting platform.

Abstract: A heating device for heating a powder attached to a substrate, including a housing, a heating member, a cover, a fan, and a filter. The housing is provided with a heating cavity. The heating member is accommodated in the heating member, and is configured to heat the powder attached to the substrate after conveyed to the heating cavity. The cover is mounted on the housing, and covers the heating cavity. The fan is mounted on the housing, and an air extraction pipe is arranged between the fan and the heating cavity to enable the fan to extract air from the heating cavity. The filter is provided in the air extraction pipe.

Abstract: A method and a system for simulating contact and interaction between a support member and a chamber surrounding rock mass are provided in the application.

Abstract: A roll-to-roll printer includes a first holding mechanism for rotatably supporting a substrate stored in a rolled form, a second holding mechanism provided above the first holding mechanism, a printing mechanism provided in front of the first holding mechanism, a third holding mechanism, and a carrying mechanism. The printing mechanism is provided with a printing platform on which a printed substrate with the protective film peeled is held. The substrate is continuously transferred across the printing platform from the first holding mechanism to the front of the printing platform. The third holding mechanism is in front of the printing platform, and can rotatably support a transfer film. The carrying mechanism is in front of the printing platform to continuously carry the transfer film and the substrate, where the transfer film adheres to a printed surface of the substrate.

Abstract: A method for obstacle detection and recognition for an intelligent snow sweeping robot is disclosed, comprising: 1) disposing ultrasonic sensors at a front end of the snow sweeping robot to detect distance information from an obstacle ahead; and disposing radar sensors at the front and rear of the snow sweeping robot to detect whether a creature suddenly approaches; 2) processing signals detected by each of the ultrasonic sensors and radar sensors, and calculating a forward distance of the snow sweeping robot; and 3) determining a snow cover extent of a working road, detecting a change of the distance from the obstacles, and recognizing the obstacles for conditions of an ultrasonic ranging variation ratio and a variation of the forward distance of the snow sweeping robot, a change of the signal detected by radar sensors, and a descriptive statistic of the snow cover extent within a specific time period.

Abstract: Disclosed are a grouting material for modifying mudstone, a preparation method and an application thereof, belonging to the technical field of material science and geotechnical engineering. The grouting material for modifying mudstone includes the following raw materials: cement, water, superfine micronized powder, water reducer, silane, fiber, diatomite, urea-formaldehyde resin and waterborne polyurethane. The preparation method of the grouting material for modifying mudstone includes steps of: (1) weighing the raw materials in parts by weight, mixing water of 40% of a total amount of water with water reducer, superfine micronized powder, fiber and diatomite, stirring to obtain a material A; (2) adding silane, urea-formaldehyde resin, waterborne polyurethane and residual water into the material A, obtaining a material B after continuous stirring; and (3) adding cement into the material B, and uniformly stirring to obtain the grouting material for modifying mudstone.

Abstract: A snow shovel structure of a snow plow robot. The snow shovel structure includes a housing where a snow shovel mechanism is. The snow shovel mechanism extends outside the housing and includes a first motor fixed on a top of the housing. The first motor is fixedly connected with a telescopic rod through an output shaft. A second motor is further provided on a top portion of an inner chamber of the housing, and a horizontal plate is fixedly arranged on a side wall of the inner chamber of the housing.

Abstract: A snow shovel structure of a snow plow robot is provided. The snow shovel structure includes a housing where a snow shovel mechanism is. The snow shovel mechanism extends outside the housing and includes a first motor fixed on a top of the housing. The first motor is fixedly connected with a telescopic rod through an output shaft. A second motor is further provided on a top portion of an inner chamber of the housing, and a horizontal plate is fixedly arranged on a side wall of the inner chamber of the housing.

Abstract: The present disclosure provides a neural network-based visual detection and tracking method of an inspection robot, which includes the following steps of: 1) acquiring environmental images of a dynamic background a movement process of the robot; 2) preprocessing the acquired images; 3) detecting human targets and specific behaviors in the images in the robot body, and saving the sizes, position information and features of the human targets with the specific behaviors; 4) controlling the orientation of a robot gimbal by using a target tracking algorithm to make sure that a specific target is always located at the central positions of the images; and 5) controlling the robot to move along with a tracked object. The neural network-based visual detection and tracking method of an inspection robot in the present disclosure has a quite high adaptive ability, achieves better detection and tracking effects on targets in a dynamic background scene.

Abstract: The present disclosure provides a neural network-based visual detection and tracking method of an inspection robot, which includes the following steps of: 1) acquiring environmental images of a dynamic background a movement process of the robot; 2) preprocessing the acquired images; 3) detecting human targets and specific behaviors in the images in the robot body, and saving the sizes, position information and features of the human targets with the specific behaviors; 4) controlling the orientation of a robot gimbal by using a target tracking algorithm to make sure that a specific target is always located at the central positions of the images; and 5) controlling the robot to move along with a tracked object. The neural network-based visual detection and tracking method of an inspection robot in the present disclosure has a quite high adaptive ability, achieves better detection and tracking effects on targets in a dynamic background scene.

Abstract: A method for obstacle detection and recognition for an intelligent snow sweeping robot is disclosed, comprising: 1) disposing ultrasonic sensors at a front end of the snow sweeping robot to detect distance information from an obstacle ahead; and disposing radar sensors at the front and rear of the snow sweeping robot to detect whether a creature suddenly approaches; 2) processing signals detected by each of the ultrasonic sensors and radar sensors, and calculating a forward distance of the snow sweeping robot; and 3) determining a snow cover extent of a working road, detecting a change of the distance from the obstacles, and recognizing the obstacles for conditions of an ultrasonic ranging variation ratio and a variation of the forward distance of the snow sweeping robot, a change of the signal detected by radar sensors, and a descriptive statistic of the snow cover extent within a specific time period.