61results about How to "Meet matching needs" patented technology

An energy-reducing method and apparatus for retrofitting a constant volume HVAC system, with or without an economizer, that provides heating, cooling, and ventilation to occupants within a building space. The present invention includes the introduction of a programmable logic controller and variable frequency drive (VFD) that takes control of the existing fan, heating, cooling, and optional economizer operation. The controller is programmed for the reduction of fan speed in the heating and cooling modes. The reduction of the fan speed in the ventilation mode when the 100% operation is not needed saves significant energy of the existing constant volume HVAC system where the fan motor is designed to run 100% of the time. The fan speed may be further reduced upon a reduction in sensed occupancy levels of the space, such as with a CO2 sensor. Additionally, the fan speed may be reduced in the heating and / or cooling mode to further reduce energy consumption. The controller may also be programmed and equipped with sensors to allow simultaneous mechanical compressor cooling and economizer free cooling operation, for the operation of the economizer in response to the monitoring of outside air and return air to determine the preferred source for cooling operations, to keep the outside air damper closed during the unoccupied heating modes such as morning warm-up, and / or to provide fault detection. The retrofit method and apparatus may be employed in a stand-alone or networked version.

The invention provides a method and a device for folding and flexibly positioning a body wallboard. Due to the method and the tool for folding and flexibly positioning the body wallboard, lots of special clamping boards are not needed and good flexibility is achieved; a positioner clamping mechanism can be adsorbed on a positioning support surface of the wallboard, so that six-freedom-degree and multi-pose regulation of the body wallboard can be achieved; laser trackers distributed on a first layer of working table, a second layer of working table and a third layer of working table can feed back assembling information at real time, thus drastically improving assembly accuracy; the body wallboard is fixed by the adsorption positioning mechanism, thus being simple in assembly and disassembly, reducing manual operation and improving assembly efficiency; and in addition, the method and the device have good generality, so that the method and the device can be suitable for folding process of body wallboard structures with different sizes and satisfy folding requirement of various body wallboards.

The invention discloses a method and device for character string matching. The method includes the steps that an AC state machine with fuzzy nodes is initialized, wherein the AC state machine generates regular nodes based on the non-wildcard relationship between the characters contained in each rule character string, and generates the corresponding fuzzy nodes according to the wildcard relationship between characters; target character strings are entered into the AC state machine, each character in the target character strings is compared with the corresponding character of each node in the ACstate machine, one or more rule character strings matching the target strings is determined, and a corresponding operation is performed according to the matched rule character strings. According to the technical scheme, after obtaining the target character strings, the target character strings are entered into the AC state machine to match, the matched one or more rule character strings in the target character string is determined, the multi-segment fuzzy matching is achieved, the flexible ability defined by the rule character strings is guaranteed, and the application demand is satisfied.