Abstract: A data quality check using a structured query language hint is described. A query optimizer of a database management system may receive a data quality check instruction as part of a database query statement for a database query. The query optimizer may modify a query execution plan for the database query based on the data quality check instruction so that completion of the database query is dependent on a result of a data quality check defined by the data quality check instruction. The database management system may execute the modified query execution plan.

Abstract: The present disclosure provides a light field display device, including: a backlight layer; a light control array layer; and a control layer. The backlight layer, the light control array layer, and the control layer are arranged side by side, and images on the backlight layer, the light control array layer, and the control layer are superimposed to form a three-dimensional image.

Abstract: The present disclosure provides a light field display device, including: a backlight layer; a light control array layer; and a control layer. The backlight layer, the light control array layer, and the control layer are arranged side by side, and images on the backlight layer, the light control array layer, and the control layer are superimposed to form a three-dimensional image.

Abstract: The present disclosure provides a robot eye lamp control method as well as an apparatus and a terminal device using the same. The method includes: loading a simulation image corresponding to an cut shape of the eye lamp of the robot onto a display interface of a terminal device remotely connected with the robot; detecting a color setting instruction issued to each color block area in the simulation image by a user, and generating combined parameter information comprising each color value in response to having received a color confirmation instruction issued by the user, and transmitting the combined parameter information to the robot so that the robot performs a light control on the eye lamp based on the combined parameter information. The present disclosure guarantees that the robot will respond to an interactive instruction only when the light display effect and the actual demand of the user matches.

Abstract: A footrest driving apparatus includes a seat frame (2), a footrest member (4), a driving mechanism (3) and a footrest linkage mechanism (5) connected to the seat frame (2), the driving mechanism (3) and the footrest member (4). The seat frame (2) has two mounting boards (21), and each mounting board (21) has a curved guide slot (22). The driving mechanism (3) has two driving arms (32). Each driving arm (32) has a guide rod (33) matching with a corresponding curved guide slot (22), and a pin (34) rotatably connected with the corresponding mounting board (21). The guide rod (33) of each driving arm (32) correspondingly moves between a first position and a second position in the curved guide slot, allowing the driving mechanism (3) to drive the footrest linkage mechanism (5) to move the footrest member (4) between a stowed position and a reclined position.

Abstract: A self-locking mechanism includes a frame (1), a transmission member (3), a rotating member (2), and a locking rod (4), forming a four-bar linkage mechanism. A supporting member (6) is movable relative to the frame (1). The rotating member (2) has an upper end rotatably connected with the supporting member (6), a lower end provided with a guide slot (22), and a middle portion therebetween. The transmission member (3) has two ends rotatably connected with the frame (1) and the middle portion respectively. The locking rod (4) has an upper end rotatably connected with the frame (1), and a lower end provided with a guide rod (41) movable in the guide slot. The locking rod (4) is rotatable between multiple positions. When the locking rod (4) is in a locking position, the guide rod (41) abuts against the guide slot to prevent the supporting member (6) from moving upward.

Abstract: A footrest driving apparatus includes a seat frame (2), a footrest member (4), a driving mechanism (3) and a footrest linkage mechanism (5) connected to the seat frame (2), the driving mechanism (3) and the footrest member (4). The seat frame (2) has two mounting boards (21), and each mounting board (21) has a curved guide slot (22). The driving mechanism (3) has two driving arms (32). Each driving arm (32) has a guide rod (33) matching with a corresponding curved guide slot (22), and a pin (34) rotatably connected with the corresponding mounting board (21). The guide rod (33) of each driving arm (32) correspondingly moves between a first position and a second position in the curved guide slot, allowing the driving mechanism (3) to drive the footrest linkage mechanism (5) to move the footrest member (4) between a stowed position and a reclined position.

Abstract: A self-locking mechanism includes a frame (1), a transmission member (3), a rotating member (2), and a locking rod (4), forming a four-bar linkage mechanism. A supporting member (6) is movable relative to the frame (1). The rotating member (2) has an upper end rotatably connected with the supporting member (6), a lower end provided with a guide slot (22), and a middle portion therebetween. The transmission member (3) has two ends rotatably connected with the frame (1) and the middle portion respectively. The locking rod (4) has an upper end rotatably connected with the frame (1), and a lower end provided with a guide rod (41) movable in the guide slot. The locking rod (4) is rotatable between multiple positions. When the locking rod (4) is in a locking position, the guide rod (41) abuts against the guide slot to prevent the supporting member (6) from moving upward.

Abstract: An adjustment pen, including a pen body, the pen body including a pen tip, wherein the adjustment pen further includes a light emitting unit, a control switch and a power supply module which are carried by the pen body, the light emitting unit is connected with the control switch and the power supply module to form an illumination circuit, the control switch is configured to control ON and OFF of the illumination circuit, and the light emitting unit is configured to emit a light beam toward the pen tip.

Abstract: An adjustment pen, including a pen body, the pen body including a pen tip, wherein the adjustment pen further includes a light emitting unit, a control switch and a power supply module which are carried by the pen body, the light emitting unit is connected with the control switch and the power supply module to form an illumination circuit, the control switch is configured to control ON and OFF of the illumination circuit, and the light emitting unit is configured to emit a light beam toward the pen tip.

Abstract: The present disclosure provides a robot eye lamp control method as well as an apparatus and a terminal device using the same. The method includes: loading a simulation image corresponding to an cut shape of the eye lamp of the robot onto a display interface of a terminal device remotely connected with the robot; detecting a color setting instruction issued to each color block area in the simulation image by a user, and generating combined parameter information comprising each color value in response to having received a color confirmation instruction issued by the user, and transmitting the combined parameter information to the robot so that the robot performs a light control on the eye lamp based on the combined parameter information. The present disclosure guarantees that the robot will respond to an interactive instruction only when the light display effect and the actual demand of the user matches.

Abstract: A kind of end feed connector for track lighting system, includes: a power cord connected with electric source and a “female” plug; said “female” plug contains electric conductor with several conductive flakes which connected with one end of the power cord, and a sealed insulation case containing an always-closed switch door in which said electric conductor is put. When powering on, there are not any bare charged bodies on this end feed connector in the present invention. It conforms to the international safety standards, and makes the installation of track lighting system more safe and convenient.