104results about How to "Solving costly technical issues" patented technology

The invention discloses an energy feedback method and system for a magnetic bearing. The system comprises a magnetic bearing, a motor, a power supply and an energy feedback device, wherein the power supply is used for supplying power to the magnetic bearing and the motor; the energy feedback device is respectively connected with the motor and the magnetic bearing electrically, and is used for supplying electric energy generated by the motor at the idle state to the magnetic bearing under the condition of abnormal power failure of the power supply. According to the invention, the technical problem of high cost caused by maintaining the stable suspension of a rotary shaft in a bearing control system by utilizing a reserve power supply under the condition of abnormal power failure of the power supply in the prior art is solved.

The invention discloses a robot collision detection method and device. The method comprises the steps that according to parameters on a target joint, a predicted driving moment of the target joint isdetermined, and an actual driving moment of the target joint is obtained; according to the specific value of the actual driving moment and the predicted driving moment, whether a robot collides or notis judged. Accordingly, a sensor does not need to be additionally arranged, the hardware structure of the robot does not need to be changed, the system development cost is reduced, and the technicalproblem that in the prior art, the sensor is used for detecting robot collision, and then the robot cost is high is solved.

The present invention discloses a multipath power supply detection method and circuit The method comprises the steps of: difference sampling of voltages of a multipath power supply through a pluralityof difference sampling circuits, and obtaining a plurality of sampling voltage values, wherein the difference sampling circuits are in one-to-one correspondence with the multipath power supply; determining whether one voltage of each power supply exceeds a preset voltage range or not according to determination of whether each sampling voltage exceeds the corresponding sampling voltage range or not, and obtaining a plurality of determination results; and determining whether there is a power supply exceeds a preset voltage range or not in the multipath power supply according to the determination results. The technical problem is solved that a detection circuit configured to detect not common-ground is high in cost in the prior art.

The invention discloses a dispensing device with relatively low cost. The device comprises a first cylinder and a glue barrel, wherein a baffle plate is arranged inside the lower end of the glue barrel; the lower end of a needle extends to the upper surface of a sliding ball; the upper end of a return spring is connected with the lower surface of the baffle plate; the lower end of the return spring is connected with the inner bottom end of the glue barrel; an electromagnet, a first piston and a second piston are sequentially arranged inside the glue barrel in the vertical direction from up to down; a liquid adding hole is formed in the side wall of the glue barrel; a first partition plate is arranged in the middle of the first cylinder to divide the first cylinder into an upper half cylinder and a lower half cylinder; one end of a glue tube is in the lower half cylinder; and the other end of the glue tube is connected with the liquid adding hole. According to the dispensing device, the technical effect that the dispensing efficiency and accuracy are guaranteed while the device design is reasonable and the cost is relatively low is achieved.

The invention discloses an automobile fuel consumption detection system and a detection method thereof, relates to the technical field of automobile detection, and solves the technical problems that the prior displacement type automobile fuel consumption detection method has complex operation and long detection period, the prior constant volume sampling fuel consumption detection device for a carbon balance method has high cost and other carbon balance fuel consumption detection devices have low precision. The automobile fuel consumption detection system comprises a main control module, a carbon-containing gas quality measurement system and a chassis dynamometer system, wherein the main control module is a singlechip; the chassis dynamometer system is used for carrying out loading control for an automobile and measuring the rotating speed of wheels after the automobile is started; and the main control module is used for controlling the measurement of the carbon-containing gas quality measurement system, adjusting the concentration and flow of various gases in the dilute exhaust gases of the automobile, and carrying out fuel consumption calculation according to the flow of the adjusted dilute exhaust gases, the concentration of the carbon-containing gas in the dilute exhaust gases and the rotating speed of the wheels. The system and the method are applied to detecting automobile fuel consumption.

The invention discloses an intercom terminal and a calling mode switching method and device. The intercom terminal comprises a shell; a hardware platform which is fixedly installed in the shell and provided with an Android system and used for operating an intercom application based on the Android system; multiple keys which are installed on the shell and connected with the hardware platform and used for realizing intercom operation in operation of the intercom application; a microphone which is installed on the shell and connected with the hardware platform and used for inputting voice information; and a loudspeaker which is installed on the shell and connected with the hardware platform and used for playing the voice information. The technical problems of high cost of the digital interphone in the related technologies can be solved.

The invention discloses a data communication device and a data communication system. The data communication device comprises multiple groups of data transmission ports and a driving module, wherein the multiple groups of data transmission ports are arranged on a printed circuit board of the data communication device, the multiple groups of data transmission ports at least comprises one data transmission group, each data transmission group comprises a data input port and a data output port, the data input ports and the data output ports are arranged on the surface of the printed circuit board and positioned on both sides of the surface, the data input ports are connected with first equipment sending out a data signal, the data output ports are connected with controlled equipment and used for sending first control signals to the controlled equipment, and the first control signals are generated according to the data signal; and the driving module is arranged on the printed circuit board, and each data transmission group is connected with one or more driving modules. The data communication device and the data communication system solve the technical problem of high cost of the data communication device in the prior art.

The invention discloses a metering method, device and system for electric charge of an air conditioner. The metering method comprises the following steps that electric quantity data recorded by a target single electricity meter is acquired; based on electric quantity data, the total power consumption of a multi-split air conditioning system in a pre-designed time period is calculated; the outdoorunit power consumption needing to be borne by a target indoor unit with the electric charge to be calculated in the multi-split air conditioning system and the motor power and the running duration ofthe target indoor unit are determined; based on the total power consumption of the multi-split air conditioning system, the outdoor unit power consumption needing to be borne by the target indoor unitand the motor power and the running duration of the target indoor unit, the apportionment electric quantity of the target indoor unit is determined; and based on the apportionment electric quantity of the target indoor unit and the electricity price, the electric charge of the target indoor unit in the pre-designed time period is calculated. According to the metering method, device and system, the technical problem of relatively high equipment cost for counting the power consumption of the multi-split air conditioner in the related art is solved.

The invention discloses an information processing method and an electronic device. The information processing method comprises the steps of obtaining at least one piece of security data when a basic input output system of the electronic device is started, wherein the at least one piece of security data is the data related to security verification in the starting process of the basic input output system; storing the at least one piece of security data in a first preset storage space of an external interface memory; and latching the first preset storage space, thereby switching the first preset storage space to a locking state, wherein when the first preset storage space is in the locking state, data is forbidden from reading from or writing in the first preset space. According to the method provided by the invention, the technical problem that in the prior art, the cost required by a mode for storing the security data in the electronic device is relatively high is solved.

The invention discloses a display method and device of virtual object information, a storage medium and an electronic device. The method comprises the steps of obtaining a first instruction, wherein the first instruction is used for indicating a first object which is about to be displayed on a first area of a virtual scene, and the first object is a virtual object which allows to be picked up in the virtual scene; looking up a second object in the virtual scene, wherein the second object is a virtual object which is displayed on a second area in the virtual scene, wherein the second area intersects with the first area; at least moving the second object, wherein the moved second object is displayed on a third area in the virtual scene, and the third area does not intersect with the first area; displaying information used for indicating the first object and the second object on a target picture of a first client side, wherein the target picture is the collected picture of the first areaand the second area. By means of the display method and device of the virtual object information, the storage medium and the electronic device, the technical problem in the prior art that the cost formanufacturing game props is high is solved.

The invention discloses a control local area network CAN chip. The chip comprises two sending accesses, two receiving accesses, and a polarity judgment unit, wherein each sending access is used for converting the logic level into the differential level, the input end of each sending access is connected with a write pin TXD of the CAN chip, and the output end is connected with the CAN bus through two different modes of connection; each receiving access is used for converting the differential level into the logic level, the output end of each receiving access is connected with a read pin RXD of the CAN chip, and the input end is connected with the CAN bus through two different modes of connection; the input end of the polarity judgment unit is connected with the CAN bus and used for gating one of two sending accesses and one of two receiving accesses according to the differential level size of the CAN bus. A technical problem that the technical scheme of the CAN non-polarity communication in the related technology is high in cost is solved by using the CAN chip disclosed by the invention.

The invention discloses dispensing equipment convenient to use. The equipment comprises a first cylinder and a glue barrel, wherein a baffle plate is arranged in the lower end of the glue barrel; the lower end of a needle head extends to the upper surface of a slide ball; the upper end of a return spring is connected with the lower surface of the baffle plate; the lower end of the return spring is connected with the inner bottom end of the glue barrel; an electromagnet, a first piston and a second piston are sequentially arranged in the glue barrel from top to bottom in a vertical direction; a liquid adding hole is formed in the side wall of the glue barrel; the middle part of the first cylinder is provided with a first partition plate for dividing the first cylinder into an upper half cylinder and a lower half cylinder; one end of a glue tube is positioned in the lower half cylinder; and the other end of the glue tube is connected with the liquid adding hole. The dispensing equipment convenient to use realizes the technical effects of a reasonable design and low cost while the dispensing efficiency and an accuracy rate are guaranteed.

The invention discloses an information processing method and electronic equipment. The electronic equipment comprises a left-hand operation mode and a right-hand operation mode. The method comprises the following steps: when a touch display screen is in a locked state, detecting whether a first unlocking operation exists on the touch display screen; when the first unlocking operation exists on the touch display screen, judging whether the first unlocking operation is a left unlocking operation corresponding to the left-hand operation mode or a right unlocking operation corresponding to the right-hand operation mode; when the first unlocking operation is the left unlocking operation, in response to the first unlocking operation, controlling the touch display screen to be in an unlocked state, and controlling the electronic equipment to be in the left-hand operation mode; when the first unlocking operation is the right unlocking operation, in response to the first unlocking operation, controlling the touch display screen to be in the unlocked state, and controlling the electronic equipment to be in the right-hand operation mode.

The invention discloses an information processing method and an information processing device for a hotel access card. The method comprises the following steps of: acquiring order information generated by a hotel management system; determining a target hotel and target floor information based on the order information, wherein the target hotel refers to a hotel checked in by a user among multiple hotels, and the target floor information refers to identification information of a floor in which the check-in room of the user is located; acquiring a target format of the target hotel from a database, wherein each hotel name corresponds to one data format, the data format refers to the format of a communication data packet of a hotel intelligent card, the hotel intelligent card is used for starting a hotel elevator and unlocking a door lock of the check-in room, and the target format refers to the data format of the target hotel; and writing the target floor information and a door lock secret key of the check-in room into the target intelligent card according to the target format. The method and the device are capable of solving the technical problem that the cost of reconstructing the elevator and an elevator control system so as to facilitate uniform management on the hotel in the relevant technology is relatively high.

The invention discloses a method and a system for determining the spraying time of a defoliating agent. The method comprises the following steps: acquiring image information of a cotton plant in a target farmland; Determining the cotton boll laying rate of the cotton plants in the target farmland based on the image information, the cotton boll laying rate being the ratio of the number of cotton bolls laid in the farmland to the total number of cotton bolls; Determining a spraying time period of a defoliating agent at least according to the flocculation rate; And sending the spraying time period to user equipment. The technical problem that in the related art, when the operation time is determined, due to the fact that manual observation is depended, the cost is high is solved.

The invention discloses a split-screen display method which is applied to a multimedia terminal and comprises the following steps of: receiving split-screen demand information; according to the splitscreen demand information, performing split screen processing on one or more video sources to obtain split-screen video data, wherein a split-screen video frame of the split-screen video data is obtained by splicing a plurality of original video frames of the video source, the split-screen video frame has first resolution, the original video frames have second resolution, and the first resolutionis greater than the second resolution; and displaying a split-screen video corresponding to the split-screen video data. The invention further discloses a split-screen display device, a multimedia terminal and a storage medium. When the multimedia terminal displays the video corresponding to the split-screen video data, a video collection and distribution device does not need to be additionally arranged, so that the split-screen display cost is relatively low.

The invention discloses a handwriting pen handwriting offset compensation method , the handwriting pen, a storage medium and a device. The method comprises the steps of collecting first coordinate information of a first starting code point and second coordinate information of a current code point through a camera; calculating a prediction distance between the first starting code point and the current code point according to the first coordinate information and the second coordinate information; judging whether the predicted distance is smaller than a preset error distance; and if the prediction distance is smaller than the preset error distance, obtaining a first intermediate code point between the first initial code point and the current code point, and moving the first intermediate codepoint and the current code point to a neighbor code point of the first initial code point. Whether an error is generated currently or not is judged through the predicted distance, and the first intermediate code point and the current code point are moved to the neighbor code point of the first initial code point when the error is generated, so that an arc between the first initial code point and the current code point is corrected into a straight line between the first initial code point and the neighbor code point, and handwriting offset compensation is realized.

The invention provides a data transmission method and apparatus. The method comprises the following steps: obtaining a first type of data and a second type of data to be sent, wherein a transmission delay allowed by the first type of data is smaller than the transmission delay allowed by the second type of data; and sending first type of data that needs to be transmitted instantaneously on a firstcarrier frequency band of a transmission channel between a target optical line unit and an optical line unit, wherein the transmission channel allows the simultaneous transmission of the first type of data and the second type of data, and the lowest frequency in the second frequency band for sending the second type of data on the transmission channel is higher than the highest frequency in the first carrier frequency band. By adoption of the data transmission method and apparatus, the technical problem of high cost of transmitting data with different delays in a passive optical network is solved.

The invention provides a method for extracting sodium thiocyanate from an ADA desulfurization waste liquid, and relates to the technical field of extraction of sodium thiocyanate, wherein the ADA desulfurization waste liquid includes the following steps: (1) directly taking the ADA desulfurization waste liquid, decolorizing, filtering, and collecting mother liquor; (2) carrying out decompression evaporation concentration operation on the collected mother liquor, to obtain a concentrated material solution; (3) adding an ethanol aqueous solution slowly into the concentrated material solution, and cooling down to 35-45 DEG C while stirring; and (4) filtering, collecting a filtrate, carrying out decompression evaporation concentration, carrying out cooling crystallization, and carrying out centrifugal separation to prepare sodium thiocyanate. The technical problems that an ADA desulfurization waste liquid needs to be subjected to high-temperature evaporation and centrifugal separation to extract mixed salts in the earlier stage of the prior art, resulting in high energy consumption and high separation equipment requirements are effectively solved, high-efficiency dissolution of thiocyanate by the ethanol aqueous solution system is achieved, and the dissolution amount of impurity salts is guaranteed to reach low level at low temperature, so as to achieve the technical effect of precipitating sodium thiocyanate crystals from the mixed solvent rapidly.

The invention discloses a high-strength finish rolled steel bar and a production method thereof. The steel bar comprises, by mass, 0.42-0.46% of C, 0.3-0.60% of Si, 1.2-1.4% of Mn, 0.035% or less of P, 0.035% or less of S, 0.010-0.020% of Cr, 0.0010-0.0020% of B, and the balance of Fe and impurity elements. Compared with present technologies depending on control of the depth of a hardening layer, the production method disclosed in the invention has the advantages of improvement of the strength of the steel bar by using macrostructure phase transformation on the premise of great reduction of alloy, simple control, and realization of batch production through using a present production device without reconstruction.

The invention discloses an arc extinction system for a power transmission network. The arc extinction system comprises a plurality of arc extinction devices, a plurality of circuit breakers, a sensor and a controller, wherein the arc extinction devices are used for providing arc extinction functions; the multiple circuit breakers are connected with the same section of a power transmission line; each circuit breaker is further connected with one arc extinction device; the circuit breakers are used for connecting the arc extinction devices into the power transmission line for performing arc extinction on the power transmission line when the circuit breakers are closed; the sensor is connected with the power transmission line and used for detecting the voltage signal and/or the current signal of the power transmission line; and the controller is connected with the multiple circuit breakers, the multiple arc extinction devices and the sensor separately, used for controlling the multiple circuit breakers according to the voltage signal and/or the current signal, and also used for adjusting the compensation capacity of the connected arc extinction devices after the circuit breakers are closed. The technical problem of relatively high cost in improvement of ground compensation devices for the power grid in the correlation technique is solved by the arc extinction system for the power transmission network.