68results about How to "Does not affect cost" patented technology

The invention discloses a statement early warning method. The method comprises the steps of obtaining a structured query statement of an application program accessing a preset production database; obtaining an execution plan of the structured query statement, and extracting preset parameters related to slow query from the execution plan; judging whether the extracted preset parameters meet a preset slow query early warning condition or not; and when the preset parameter satisfies a preset slow query early warning condition, adding the corresponding structured query statement into a preset early warning list. The invention further discloses a statement early warning device, equipment and a computer readable storage medium. The optimization cost of slow query can be reduced on the premise that the performance of the production database is not influenced.

The invention provides an automatic dedusting device for an air conditioner. The air conditioner comprises an air inlet and a surface frame. The air inlet is formed in the upper end surface of the surface frame. The automatic dedusting device comprises a grid assembly which comprises a supporting housing, a filter screen, a driving device and a rolling brush assembly; the supporting housing is a cavity with openings at the upper and lower ends, a pivot hole is formed in the side wall of the supporting housing, the rolling brush assembly is pivoted to the pivot hole, the filter screen is of a closed loop structure connected end to end, the filter screen covers the opening of the supporting housing, the filter screen is wound to the rolling brush assembly, a conveyor belt is arranged at the edge of the filter screen, the rolling brush assembly drives the filter screen to operate through the conveyor belt, and the driving device of the air conditioner drives the rolling brush assembly to rotate. The automatic dedusting device provided by the invention is arranged in a position of the air inlet of a split wall-mounted air conditioner and can achieve an effect of automatically cleaning ash, so that use by a user is facilitated to the maximum extent.

Embodiments of the present invention disclose an audio data processing method and a device thereof. The audio data processing method comprises: acquiring audio data generated by a current terminal application and acquiring a data processing mode to which the audio data belongs; when the data processing mode is a first processing mode, increasing the output power of the audio data by using an internal power amplifier so as to obtain the first output audio data, and outputting the first output audio data from the headphone side; acquiring headphone audio data in the audio data when the data processing mode is the second processing mode; and carrying out filtering processing on the headphone audio data, increasing the output power of the filtered headphone audio data by using the internal power amplifier so as to obtain the second output audio data, and outputting the second output audio data from the headphone side. According to the method and device disclosed by the embodiments of the present invention, the working mode switching of the loudspeaker 2-in-one device can be controlled by software, and the usage rate of the loudspeaker 2-in-one device is improved on the basis of not affecting the hardware cost.

The invention relates to a high-speed thyristor of a KK200A-KK1600A series. The high-speed thyristor comprises a center gate electrode, a gear type enlarged gate electrode inner base circle, a bulge type enlarged gate electrode outer base circle, an evolvent type enlarged gate electrode separate finger, an edge chamfer angle using an inner circle and an outer circle as boundaries, and a conventional short-circuit point. The high-speed thyristor is characterized in that an aluminum layer of the evolvent type enlarged gate electrode separate finger is connected with a center enlarged gate electrode. The high-speed thyristor is helpful for improving correlative performances of a complete machine system which is designed and manufactured by adopting devices of the series, has a better market prospect, and is favorable for obviously improving the economic benefits and the social benefits of the devices of the series and correlative products of the complete machine system.

The invention discloses a method for determining a short-circuit position of parallel-wound wires of a transformer coil and relates to detection of the transformer coil. According to a conventional method for determining the short-circuit position of the parallel-wound wires of the transformer coil, an iron core is sleeved, current is increased, turn wires at a short-circuit point are insulated to cause carbonization, the coil is severely damaged, labor intensity is improved, and material cost is improved. The method provided by the invention comprises the following steps of: 1) measuring, and thus obtaining a resistance value RH of a normal wire; 2) searching a short-circuit wire; 3) measuring, and thus obtaining a front-section resistance value Rab of the wire; 4) subtracting a resistance value RB of a direct current resistance tester measuring line from the front-section resistance value Rab of the wire, comparing a difference value with the resistance value RH of the normal wire, and calculating to determine the position of the short-circuit point; and 5) calculating to determine the short-circuit point between the two wires, and if the quantity of the short-circuit points is more than 1, determining other short-circuit points between the two wires according to the steps 3 and 4 after repairing the short-circuit point. The method is simple, practical and high in efficiency.

The invention discloses a guide rail lubricating device. The guide rail lubricating device comprises an installation block, adaptors and an oil pipe. The two ends of the oil pipe are connected to the installation block and a guide rail sliding block through the adaptors correspondingly. The novel guide rail lubricating device is simple in structure, convenient to assemble and capable of achieving spatial switching, and the problem that no space is used for allowing lubricating grease to be injected is solved.

The invention discloses a method for improving the utilization efficiency of factory rice seeding greenhouses. Since only one crop of rice seedlings per year can be raised in many factory rice seedinggreenhouses, serious waste of resources is caused, and in order to solve the problem, a greenhouse cultivation mode of potatoes, rice seeding and peppers can be achieved through the method accordingto the growth characteristics of the potatoes, rice seedlings and autumn-and-winter peppers; the method has the advantages of good engagement of crop rotation, a good yield and a high earning, and canreduce the production cost of the potatoes by means of natural advantages and have no influence on the performance of rice seeding, so that the utilization efficiency of land is effectively improved,and after rice seeding is finished, the autumn-and-winter peppers can be cultivated by means of a cultivation technique of the method, so that a short growth period and good benefit are achieved; since the selling period of the autumn-and-winter peppers coincides with December, the off-season market demand for the peppers can be met, and the autumn-and-winter peppers are welcomed by consumers. According to the cultivation mode for improving the yield of rice seeding in the factory greenhouses, since the time period of crop rotation of agricultural products is arranged reasonably, the comprehensive benefit of rice production can be improved, the waste of the high-cost factory rice seeding greenhouses can be avoided, and therefore the method has a wide application prospect.

The application discloses a rotary railing switch alarm device. The rotary railing switch alarm device includes a rotary railing, a cam, a travel switch and a mounting bracket, the cam is sheathed on the rotary railing, the travel switch is installed on the mounting bracket, and the contact of the travel switch against the cam. The rotation of the rotating railing drives the rotation of the cam to press the contact of the travel switch, the travel switch signal is sent out, and the machine tool alarms. The novel rotating railing switch alarm device has simple structure, convenient assembly and simple use. When the rotating railing is opened, the device will alarm and cannot operate.

The invention belongs to the field of dihydrate gypsum synthesis and relates to a synthetic method of citric acid gypsum. The method comprises the following steps: preparing a suspension from calcium hydrogen citrate, calcium sulphate dihydrate seed crystal and water; heating the suspension until the temperature of the suspension is 20-80 DEG C, stirring the suspension and simultaneously adding a sulfuric acid solution into the suspension until sulfuric acid and calcium hydrogen citrate completely react; standing and taking a bottom solid after the reaction, cooling and washing and drying. By the technical scheme, the problem of low strength of building gypsum powder due to fine citric acid gypsum particles and irregular crystal structure is solved.

The invention discloses a glass-plastic mixed prime lens. The glass-plastic mixed prime lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, which are arranged inorder from an object side to an image side; wherein the third lens is a glass spherical lens, and the first lens, the second lens, the fourth lens and the fifth lens are all plastic aspherical lenses;the first lens is a convex-concave negative power lens, the second lens is a concave-convex positive power lens, the third lens is a biconvex positive power lens, the fourth lens is a convex-concaveor a biconcave negative power lens, and the fifth lens is a biconvex positive power lens; a ratio of focal lengths of the second lens, the third lens, the fourth lens and the fifth lens to the entirelens satisfies the following conditions: f2/f is greater than 3 and less than 6; f3/f is greater than 1.6 and less than 2; f5/f is greater than 1 and less than 10; and f4/f5 is greater than -1.1 and less than -0.65. By adopting the technical scheme provided by the embodiment of the invention, the performance of the prime lens is not affected while the cost is reduced.

The invention discloses an ultrasonic wave anti-fake device and method. The device comprises an anti-fake module and a verification module, the anti-fake module and an object needing anti-fake processing are packaged together, and the anti-fake module comprises a first acoustic wave receiver, a first acoustic wave generator and a first processing unit, wherein the first acoustic wave receiver is used for monitoring external pairing ultrasonic wave signals, the first acoustic wave generator is used for transmitting encryption signals containing object information, and the first processing unit is used for analyzing and processing the pairing ultrasonic wave signals and generating the encryption signals. The verification module comprises a second acoustic wave generator, a second acoustic wave receiver, a second processing unit and a displaying unit, wherein the second acoustic wave generator is used for generating pairing ultrasonic wave signals, the second acoustic wave receiver is used for receiving encryption signals, the second processing unit is used for generating pairing ultrasonic wave signals and decrypting the encryption signals, and the displaying unit is used for displaying the object information obtained through decrypting the encryption signals. When the information of the object needing anti-fake processing needs to be inquired, the verification module generates the pairing ultrasonic wave signals, the anti-fake module generates the encryption signals when monitoring that the pairing ultrasonic wave signals are matched with stored secrete keys, and the verification module receives and decrypts the encryption signals according to a conventional algorithm and displays the decrypted information on the displaying unit.

The invention discloses a glass and plastic mixed fixed-focus lens. The glass and plastic mixed fixed-focus lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and asixth lens, which are sequentially arranged from the object side to the image side, wherein the fourth lens is a glass spherical lens; the first lens, the second lens, the third lens, the fifth lens and the sixth lens are plastic aspheric lenses; the first lens is a convex-concave negative focal lens; the second lens is a convex-concave positive focal lens; the third lens is a convex-concave lens;the fourth lens is a double-convex positive focal lens; the fifth lens is a double-concave negative focal lens; the sixth lens is a double-convex positive focal lens; and the focal length ratio of the second lens, the fourth lens, the fifth lens and the sixth lens to the whole lens satisfies the following condition: a formula as shown in the specification. According to the technical scheme provided in the embodiment of the invention, the performance of the fixed-focus lens is not influenced while the cost is reduced.

The invention discloses a silicon IC-gallium nitride hybrid driving system. The system comprises a driving module and a gallium nitride power device. The driving module comprises a silicon IC type linear voltage reduction assembly used for outputting a preset voltage and a gallium nitride monolithic integrated type driving half-bridge assembly. The output end of the gallium nitride monolithic integrated drive half-bridge assembly is in signal connection with a gate circuit of the gallium nitride power device, so as to modulate the conductivity of the gallium nitride power device in a chargingand discharging manner. The silicon IC type linear voltage reduction assembly is connected with the gallium nitride monolithic integrated type drive half-bridge assembly through wire bonding; and thedriving module and the gallium nitride power device are matched in a common packaging mode. The system at least comprises the following advantages: the advantages of flexibility, low cost and maturityof a silicon IC integrated circuit and the advantages of a gallium nitride monolithic integrated half-bridge assembly for eliminating parasitic parameters of a drive circuit are combined.

The invention provides a backlight module and a display device. The backlight module comprises a light guide plate comprising the light entering surface, the light emitting surface and the reflecting surface, a reflector, a diffuser, a prismatic lens set, a rim tape, a light source and a light shield layer, wherein the reflector is arranged on the reflecting surface of the light guide plate, the diffuser is arranged on the light emitting surface of the light guide plate, the prismatic lens set is arranged on the light emitting surface of the diffuser, the rim tape is arranged around the light emitting surface of the light guide plate, the light source is arranged on one side of the light entering surface of the light guide plate, and the light shield layer is arranged between the diffuser and the rim tape and arranged on the outer side of the prismatic lens set in the mode that the light shield layer corresponds to the side of incident light of the diffuser. The light shield layer comprises a middle section and side sections which are separated, and the length of the middle section is larger than the length of each side section. The two sides of the side sections are fixedly connected with the diffuser and the rim tape correspondingly, and only one side of the middle section is fixedly connected with the rim tape. Under the condition of high temperatures or low temperatures or the like, the light shield layer and the diffuser move relatively, and warping of the light shield layer and the diffuser is avoided.

The invention provides a capacitor for integrated circuits, comprising a base layer, a first capacitor, and a second capacitor. The first capacitor is configured in the base layer. The second capacitor is configured on the first capacitor, and at least partially covers the first capacitor. A first electrode of the first capacitor is coupled to a first electrode of the second capacitor, and a second electrode of the first capacitor is coupled to a second electrode of the second capacitor.