Abstract: A control method for preparing crop nutrient solution, applied in a regulating device, obtains growth data of crops, and determines a growth state of the crops according to the growth data of the crops. The proportion of the nutrient solution required by the crops is determined according to the growth states of the crops, and the culture solution is adjusted according to the proportion of the nutrient solution. After a preset time period, updated growth state of the crops is determined. When the culture solution does not meet the proportion of the nutrient solution corresponding to the updated growth state, the culture solution is adjusted again until the culture solution meet the proportion of the nutrient solution corresponding to the growth state of the crops.

Abstract: A slide rail assembly includes a first rail, a second rail, a first support rail, a second support rail, a third rail, and a third support rail. The second rail is displaceable with respect to the first rail. The first support rail is fixedly connected to a first portion of the second rail. The second support rail is movably connected to a second portion of the second rail. The third rail is fixedly connected to the second support rail. The third support rail is displaceable with respect to the third rail.

Abstract: A bracket mounting structure includes a bracket, a base, a connecting member, an elastic member, and a mounting member. The bracket includes a longitudinal wall. The base is arranged adjacent to the longitudinal wall and includes a first space and a second space. The connecting member is mounted in the first space and includes a first portion, a second portion, and a through hole arranged in the first portion and the second portion. At least one of the first portion and the second portion has a screw thread feature. The elastic member is received in the first space and is configured to apply an elastic force to the connecting member. The mounting member is mounted in the second space.

Abstract: A slide rail assembly includes a first rail, a second rail, a first support rail, a second support rail, a third rail, and a third support rail. The second rail is displaceable with respect to the first rail. The first support rail is fixedly connected to a first portion of the second rail. The second support rail is movably connected to a second portion of the second rail. The third rail is fixedly connected to the second support rail. The third support rail is displaceable with respect to the third rail.

Abstract: A bracket device is configured to mount a slide rail to a post. The bracket device includes a bracket, a hook, a locking element and an extension element. The bracket has a first engagement part. The hook is connected to the bracket and located at a close position relative to the bracket. The locking element is operatively engaged with the first engagement part of the bracket for abutting against the hook to hold the hook at the close position. The extension element is connected to the locking element. Wherein, when the locking element is operatively disengaged from the bracket, the locking element no longer abuts against the hook, and the hook is no longer held at the close position relative to the bracket.

Abstract: A bracket mounting structure includes a bracket, a base, a connecting member, an elastic member, and a mounting member. The bracket includes a longitudinal wall. The base is arranged adjacent to the longitudinal wall and includes a first space and a second space. The connecting member is mounted in the first space and includes a first portion, a second portion, and a through hole arranged in the first portion and the second portion. At least one of the first portion and the second portion has a screw thread feature. The elastic member is received in the first space and is configured to apply an elastic force to the connecting member. The mounting member is mounted in the second space.

Abstract: A slide rail assembly includes a first rail, a second rail, a third rail, and at least one supporting structure. The second rail is movable with respect to the first rail. The third rail is mounted between the first rail and the second rail. The at least one supporting structure is disposed at a position relative to the first rail. When the second rail is at a predetermined position relative to the first rail, the third rail supports a portion of the second rail, and the at least one supporting structure supports the remaining portion of the second rail.

Abstract: A slide rail assembly includes a rail element, a first bracket, an extension frame, a second bracket, a blocking element, and an elastic element. The first bracket is mounted to the rail element and configured to be mounted to a first post. The extension frame is movable relative to the rail element. The second bracket is mounted to the extension frame and configured to be mounted to a second post. The blocking element is movably connected to the second bracket. The elastic element is configured to provide an elastic force to hold the blocking element at a first position relative to the second bracket. When the extension frame is driven by the rail element to move along a direction, the extension frame pushes the blocking element to rotate from the first position to a second position, such that the second bracket is detachable from the second post.

Abstract: A bracket device is configured to mount a slide rail to a post. The bracket device includes a bracket, a hook, a locking element and an extension element. The bracket has a first engagement part. The hook is connected to the bracket and located at a close position relative to the bracket. The locking element is operatively engaged with the first engagement part of the bracket for abutting against the hook to hold the hook at the close position. The extension element is connected to the locking element. Wherein, when the locking element is operatively disengaged from the bracket, the locking element no longer abuts against the hook, and the hook is no longer held at the close position relative to the bracket.

Abstract: A slide rail assembly is configured to be detachably mounted to a first post and a second post by a first bracket and a bracket device. The bracket device includes a second bracket, a hook, and a locking element. The hook is connected to the second bracket. The locking element is operatively engaged with the second bracket for abutting against the hook in order to hold the hook at a close position relative to the second post. When the first bracket is detached from the first post, and the locking element is operatively disengaged from the second bracket, the locking element no longer abuts against the hook.

Abstract: A slide rail assembly includes a first rail, a second rail, a third rail, and at least one supporting structure. The second rail is movable with respect to the first rail. The third rail is mounted between the first rail and the second rail. The at least one supporting structure is disposed at a position relative to the first rail. When the second rail is at a predetermined position relative to the first rail, the third rail supports a portion of the second rail, and the at least one supporting structure supports the remaining portion of the second rail.

Abstract: A slide rail assembly includes a rail element, a first bracket, an extension frame, a second bracket, a blocking element, and an elastic element. The first bracket is mounted to the rail element and configured to be mounted to a first post. The extension frame is movable relative to the rail element. The second bracket is mounted to the extension frame and configured to be mounted to a second post. The blocking element is movably connected to the second bracket. The elastic element is configured to provide an elastic force to hold the blocking element at a first position relative to the second bracket. When the extension frame is driven by the rail element to move along a direction, the extension frame pushes the blocking element to rotate from the first position to a second position, such that the second bracket is detachable from the second post.

Abstract: A slide rail assembly includes a rail element, a first bracket, an extension frame, a second bracket, a blocking element, and an elastic element. The first bracket is mounted to the rail element and configured to be mounted to a first post. The extension frame is movable relative to the rail element. The second bracket is mounted to the extension frame and configured to be mounted to a second post. The blocking element is movably connected to the second bracket. The elastic element is configured to provide an elastic force to hold the blocking element at a first position relative to the second bracket. When the extension frame is driven by the rail element to move along a direction, the extension frame pushes the blocking element to move from the first position to a second position, such that the second bracket is detachable from the second post.

Abstract: A bracket device is adapted for mounting an object arranged on a slide rail assembly to a post of a rack. The bracket device includes a bracket and an engagement member. The bracket is connected to the slide rail assembly and has a longitudinal wall and an end wall substantially perpendicularly connected to the longitudinal wall. The end wall is mounted to the post of the rack by at least one mounting member. The engagement member is arranged on the bracket and releasably engaged with a portion of the object.

Abstract: A slide rail assembly is configured to be detachably mounted to a first post and a second post by a first bracket and a bracket device. The bracket device includes a second bracket, a hook, and a locking element. The hook is connected to the second bracket. The locking element is operatively engaged with the second bracket for abutting against the hook in order to hold the hook at a close position relative to the second post. When the first bracket is detached from the first post, and the locking element is operatively disengaged from the second bracket, the locking element no longer abuts against the hook.

Abstract: A slide rail assembly includes a rail element, a first bracket, an extension frame, a second bracket, a blocking element, and an elastic element. The first bracket is mounted to the rail element and configured to be mounted to a first post. The extension frame is movable relative to the rail element. The second bracket is mounted to the extension frame and configured to be mounted to a second post. The blocking element is movably connected to the second bracket. The elastic element is configured to provide an elastic force to hold the blocking element at a first position relative to the second bracket. When the extension frame is driven by the rail element to move along a direction, the extension frame pushes the blocking element to move from the first position to a second position, such that the second bracket is detachable from the second post.

Abstract: A bracket device is adapted for mounting an object arranged on a slide rail assembly to a post of a rack. The bracket device includes a bracket and an engagement member. The bracket is connected to the slide rail assembly and has a longitudinal wall and an end wall substantially perpendicularly connected to the longitudinal wall. The end wall is mounted to the post of the rack by at least one mounting member. The engagement member is arranged on the bracket and releasably engaged with a portion of the object.