Abstract: When an electronic device needs to display a map image of specified coordinates, the electronic device may communicate and interact with a cloud server, and send a query request. After receiving the query request, the cloud server may obtain, based on the query request, specified coordinate information and a geographical area range with the specified coordinate information as a center. The cloud server obtains corresponding specified map data. The cloud server may generate a specified map image based on the specified map data, and then send the specified map image to the electronic device.

Abstract: An off-road vehicle includes a frame and an engine. The engine includes a cylinder block and a cylinder head, on which an exhaust passage is arranged. The cylinder head is provided with a supplementary air supply passage for mixing air into the exhaust gas discharged from the combustion chamber. Alternatively, the supplementary air supply passage can be included in the exhaust system, such as in a cylinder head mounting flange of the exhaust pipe, upstream of an oxygen sensor and first and second stage catalytic converters. The exhaust gas from the engine is further oxidized by air, which reduces the content of components such as CO and NOx in the exhaust gas, improving environmental protection.

Abstract: A dining chair includes: a pair of support legs having inner surfaces, the inner surfaces defining a pair of slide grooves, each of the slide grooves extending along a direction that is parallel to a surface; a seat having a front end, a rear end, and two opposite sides between the front end and the rear end, one of the sides including a first side, a second side, and a shoulder formed between the first and second sides, the first side slidably received in one of the slide grooves, and the shoulder abutting against a closed end of the one of the slide grooves; and a locking mechanism fixed to the seat adjacent to the one of the sides of the seat, the locking mechanism including a locking member that is to move past the second side and abut against a rear end face of one of the support legs.

Abstract: The present application relates to automatic decision-making for welding. Multi-dimensional data cleaning is performed and dimensional data warehouse is established by processing, filtering and converting basic source data of welding nodes in a welding process for monocrystal pulling-up into data sets easily identified and marked and establishing respective models based thereon. Basic source data of a current welding nodes are obtained and converted into process parameters. The process parameters are compared with respective models in the dimensional data warehouse to obtain a first determination result. Data analysis is performed on the first determination result to determine whether the current welding process is abnormal to obtain a second determination result. Decision is made automatically based on the second determination result.

Abstract: The present application relates to automatic decision-making for pulling. Multi-dimensional data cleaning is performed and dimensional data warehouse is established by processing, filtering and converting basic source data of pulling nodes in a pulling process for monocrystal pulling-up into data sets easily identified and marked and establishing respective models based thereon. Basic source data of a current pulling nodes are obtained and converted into process parameters. The process parameters are compared with respective models in the dimensional data warehouse to obtain a first determination result. Data analysis is performed on the first determination result to determine whether an abnormality occurs in the current pulling process to obtain a second determination result. Decision is made automatically based on the second determination result.

Abstract: The present disclosure relates to automatic decision-making for re-feeding. Multi-dimensional data cleaning is performed and dimensional data warehouse is established by processing, filtering and converting basic source data of re-feeding nodes in a re-feeding process for monocrystal pulling-up into data sets easily identified and marked and establishing respective models based thereon. Basic source data of a current re-feeding nodes are obtained and converted into process parameters. The process parameters are compared with respective models in the dimensional data warehouse to obtain a first determination result. Data analysis is performed on the first determination result to determine whether an abnormality occurs in the current re-feeding process to obtain a second determination result. Decision is made automatically based on the second determination result.

Abstract: An autonomous driving control system, comprising a main control system and a backup control system. The main control system comprises a main control module and main execution modules, and the backup control system comprises a backup control module and backup execution modules; the main control module monitors an operating status of the main control system in real time; the main control module further sends, when detecting that a failure occurs in the main control system, a failure notification to the backup control module, and sends a response termination control instruction to each of the main execution modules, the response termination control instruction being a control instruction for instructing each of the main execution modules not to respond to any control over a vehicle; and the backup control module controls, after receiving the failure notification, the backup execution modules to start to execute a backup control instruction.

Abstract: An autonomous driving control system comprises a main controller, a backup controller, main execution apparatuses and backup execution apparatuses. The backup controller is configured to decompose, when receiving a main control instruction from the main controller, the main control instruction to obtain backup control instructions corresponding to the backup execution apparatuses respectively, and send the backup control instructions to the backup execution apparatuses correspondingly; and the control system is configured to control, when detecting that an abnormality occurs in any one device of the main execution apparatuses, the backup execution apparatus corresponding to the device in which the abnormality has occurred to execute a corresponding backup control instruction. The system can solve the problem that an autonomous driving control system cannot operate normally when any controller or actuation mechanism fails at a single point.

Abstract: An orbiting scroll plate driving assembly provided by the present application includes a main shaft (7), a tail driving shaft (6), and an eccentric shaft sleeve (5). The tail driving shaft (6) is eccentrically connected to the main shaft (7), and the eccentric shaft sleeve (5) is rotatably sleeved on the tail driving shaft (6). The orbiting scroll plate driving assembly further includes a limiting portion (14). The limiting portion (14) is disposed on the tail driving shaft (6), and provided with a first limiting portion protrusion (141). The eccentric shaft sleeve (5) is provided with an eccentric shaft sleeve groove (51). The first limiting portion protrusion (141) is correspondingly inserted into the eccentric shaft sleeve groove. A circumferential size of the eccentric shaft sleeve groove (51) is larger than a circumferential size of the first limiting portion protrusion (141).

Abstract: Scroll compressor, a vehicle air conditioner and a vehicle are disclosed. The scroll compressor includes a first end cover, a casing and a crankshaft. The casing is provided with a supporting portion having a first bearing mounting portion; the first end cover is provided with a second bearing mounting portion; a first end of the crankshaft is arranged in the first bearing mounting portion through a first bearing; a second end of the crankshaft is arranged in the second bearing mounting portion through a second bearing; and the first bearing mounting portion and the second bearing mounting portion cooperate with each other to form an axial limitation on the crankshaft.

Abstract: The method includes: A first device obtains an auxiliary device of the first device; the first device divides to-be-backed up data into N data sets, where N is a quantity of backup devices, and the backup devices include the first device and the auxiliary device of the first device; the first device sends backup information to the auxiliary device, where the backup information includes a data set allocated to the auxiliary device, and the backup information indicates the auxiliary device to send the received data set to a preset cloud platform; and the first device sends a data set allocated to the first device to the preset cloud platform.

Abstract: This application provides a communication method and apparatus, to resolve a problem that an amount of data transmitted by a sharing device per unit of time is limited and a sharing distance is short, thereby improving data quality and increasing a quantity of shared devices. The communication method and apparatus may be applied to a communication system. The method includes providing a communication method. The method is applied to a forwarding device. The communication method includes: The forwarding device receives sharing indication information from a terminal device. The sharing indication information indicates to share first data, and the first data is to-be-shared data of the terminal device. The forwarding device obtains the first data, and sends the first data to a plurality of receiving devices based on the sharing indication information.

Abstract: An off-road vehicle includes a frame and an engine. The engine includes a cylinder block and a cylinder head, on which an exhaust passage is arranged. The cylinder head is provided with a supplementary air supply passage for mixing air into the exhaust gas discharged from the combustion chamber. Alternatively, the supplementary air supply passage can be included in the exhaust system, such as in a cylinder head mounting flange of the exhaust pipe, upstream of an oxygen sensor and first and second stage catalytic converters. The exhaust gas from the engine is further oxidized by air, which reduces the content of components such as CO and NOx in the exhaust gas, improving environmental protection.

Abstract: Disclosed is a sulfate corrosion-resistant concrete, a method for optimizing proportion and application thereof. The concrete is formed by mixing and stirring base stocks, aggregates, admixtures, external additives and water. The base stock of the concrete is 17.4-17.5 parts of Portland cement; the aggregates include 38.9 parts of basalt with aggregate size of 5-10 mm and 33.1-33.2 parts of basalt medium sand; the admixtures are 1.9-1.95 parts of silica fume or fly ash, and further including 0.23-0.24 part of polycarboxylate water reducer and 1.34-1.35 part of sulfate corrosion-resistant liquid preservative. Optimized proportion method: according to the corrosion characteristics of sulfate and corrosion environment parameters, determine the composition and proportion of basic samples and comparison samples, make and cure sample components, test the deep components of the samples, and obtain the optimal composition and proportion according to the test results.

Abstract: A method for displaying a graphical user interface (GUI) based on a gesture is implemented by an electronic device. The method includes displaying a first GUI on a touchscreen of the electronic device, where the first GUI includes two or more entries, and each entry includes at least two interface elements. The method further includes receiving a first gesture of a user on the touchscreen. The method further includes displaying a second GUI on the touchscreen in response to the first gesture, where the second GUI includes two or more entries, and each entry includes at least one interface element. A quantity of entries in the second GUI is greater than a quantity of entries in the first GUI, and a quantity of interface elements in the second GUI is less than a quantity of interface elements in the first GUI.

Abstract: Disclosed is a method for evaluating environmental erosion of thaumasite in tunnel concrete, including: acquiring natural corrosion action parameters and environmental influence action parameters, and evaluating a natural corrosion situation based on the natural corrosion action parameters to obtain an initial evaluation result; and modifying the initial evaluation result based on the environmental influence action parameters to obtain a target evaluation result.

Abstract: Disclosed is a sulfate corrosion-resistant concrete, a method for optimizing proportion and application thereof. The concrete is formed by mixing and stirring base stocks, aggregates, admixtures, external additives and water. The base stock of the concrete is 17.4-17.5 parts of Portland cement; the aggregates include 38.9 parts of basalt with aggregate size of 5-10 mm and 33.1-33.2 parts of basalt medium sand; the admixtures are 1.9-1.95 parts of silica fume or fly ash, and further including 0.23-0.24 part of polycarboxylate water reducer and 1.34-1.35 part of sulfate corrosion-resistant liquid preservative. Optimized proportion method: according to the corrosion characteristics of sulfate and corrosion environment parameters, determine the composition and proportion of basic samples and comparison samples, make and cure sample components, test the deep components of the samples, and obtain the optimal composition and proportion according to the test results.

Abstract: A database (DB) file backup method and apparatus, and an electronic device are provided. The method includes: an electronic device segments a DB file, to obtain local subfiles of the DB file, obtains a first local subfile from the local subfiles, and uploads the first local subfile to a server, where the first local subfile is a local subfile that does not have a corresponding server side subfile in the server; and/or obtains a second local subfile from the local subfiles, and uploads the second local subfile to the server, where the second local subfile is a local subfile that has a corresponding server side subfile in the server and that corresponds to a content comparison result indicating that the second local subfile and the corresponding server side subfile are inconsistent. In this case, a local subfile whose content does not change is not uploaded each time.

Abstract: A file sharing method, a system, and a related device are provided, which are applicable to the field of internet technologies. The file sharing method includes, after detecting a sharing operation instruction of an original file, a terminal device obtains a cloud identifier corresponding to the original file, the terminal device obtains, from the cloud disk server, the original file corresponding to the cloud identifier, and the terminal device sends the obtained original file corresponding to the cloud identifier to a target sharing terminal, so that sharing of a file stored in the cloud disk server can be implemented without jumping by using an address link.

Abstract: An autonomous driving control system, comprising a main control system and a backup control system. The main control system comprises a main control module and main execution modules, and the backup control system comprises a backup control module and backup execution modules; the main control module monitors an operating status of the main control system in real time; the main control module further sends, when detecting that a failure occurs in the main control system, a failure notification to the backup control module, and sends a response termination control instruction to each of the main execution modules, the response termination control instruction being a control instruction for instructing each of the main execution modules not to respond to any control over a vehicle; and the backup control module controls, after receiving the failure notification, the backup execution modules to start to execute a backup control instruction.