Abstract: The present invention discloses application of a strain CH18 in preparation of anthocyanins and other flavonoid compounds. The preservation number of the strain CH18 is CGMCC NO.14784. Flavonoid compounds have the functions of resisting oxidation, tumors and fatigue, delaying senescence, preventing cardiovascular and cerebrovascular diseases, reducing blood pressure and blood lipid, regulating neuroendocrine, resisting osteoporosis, removing freckles, resisting wrinkles, and improving eyesight. The present invention uses microorganisms to produce anthocyanins and other flavonoids, which has the advantages of low price, easy control, short production cycle and year-round production, and can meet the needs of industrial production. Therefore, the present invention opens up a new biological pathway for producing a variety of anthocyanins and other flavonoid compounds with high efficiency and low cost.

Abstract: A method for selecting a management frame antenna based on a master-slave network and an apparatus are provided. In one example method, when a preset condition is met, a signal quality collection instruction is sent by a master device to a first slave device and a second slave device, so as to receive returned signal quality information. A management frame antenna is selected for the first slave device and a management frame antenna for the second slave device according to the received signal quality information, so that the selected management frame antennas can implement signal coverage optimization in an entire area managed by the master device.

Abstract: Embodiments of the present invention provide a method for selecting a management frame antenna based on a master-slave network and an apparatus. The method includes: when a preset condition is met, sending, by a master device, a signal quality collection instruction to a first slave device and a second slave device, so as to receive returned signal quality information; and selecting a management frame antenna for the first slave device and a management frame antenna for the second slave device according to the received signal quality information, so that the selected management frame antennas can implement signal coverage optimization in an entire area managed by the master device.