35results about How to "Avoid working at the same time" patented technology

The invention discloses a self-propelled lifter, which comprises an upper vehicle part and a lower vehicle part. The upper vehicle part further comprises a basket (31) which can be moveably arranged at the main body of the self-propelled lifter and also comprises a first power unit, a second power unit and a control unit for supplying power for the upper vehicle part or the lower vehicle part. During the working of the upper vehicle part, the control unit controls the second power unit to start when the first power unit stops working, and thus, dangers caused by sudden power loss of the upper vehicle part are prevented; meanwhile, the self-propelled lifter can be supplied with power not only by the first power unit but also through the second power unit, so various power output modes are provided; and being capable of going down to a depth of about 110 meters, the basket (31) of the self-propelled lifter of the invention can meet the use requirement under specific working conditions.

The invention discloses a cascade type buck-boost converter input side current control method and belongs to the technical field of power electronics. The cascade type buck-boost converter input side current control method can complete control based on comparison between an input voltage and an output voltage of a converter. When the input voltage is lower than the output voltage, a switch tube of a boost converter is constantly conducted, and a first current control scheme is utilized to obtain a conduction duty ratio of the switch tube of the boost converter; and when the input voltage is higher than or equal to the output voltage, a switch tube of a buck converter is constantly cut off, and a second current control scheme is utilized to obtain a conduction duty ratio of the buck converter. The two switch tubes of the cascade type boost converter and the cascade type buck converter can be prevented from simultaneously working in a high-frequency state, system consumption is reduced, effective current control technology can be matched with a voltage boosting stage and a voltage reducing stage, and good input and output performances are achieved.

The invention relates to a heating control circuit and a washing machine. The heating control circuit comprises a gate control circuit and at least two heating circuits; each heating circuit is connected with the gate control circuit; the gate control circuit is used for performing alternative gate control on the heating circuits. According to the heating control circuit and the washing machine, the plurality of heating circuits do not need to work simultaneously and accordingly damage to a device due to too large loads is avoided, the safety hidden trouble is eliminated, and the safety performance of the device such as the washing machine which is provided with at least two heating circuits is improved.

The invention discloses a vehicle-mounted intelligent system for logistics monitoring. The vehicle-mounted intelligent system comprises vehicle-mounted processing equipment, vehicle door monitoring equipment, goods compartment monitoring equipment, switch control equipment and a power supply, the vehicle door monitoring device comprises a camera shooting switch, a door closing sensor arranged at adoor of a goods compartment of the logistics vehicle and a camera for collecting video images at the door of the goods compartment. The goods compartment monitoring device comprises an RFID switch and an RFID reader arranged in a goods compartment of the logistics vehicle, and goods in the goods compartment of the logistics vehicle are provided with RFID tags with unique numbers. And the vehicle-mounted processing equipment comprises a vehicle-mounted processor and a wireless communication module. According to the invention, the RFID reader is used for counting the goods in the goods compartment of the logistics vehicle, so that personal errors are effectively avoided, video image collection and transmission in the goods loading and unloading process can be effectively realized, and the goods loading and unloading process can be conveniently monitored.

The invention discloses a construction method for installing underground lattice column. The method includes the steps that a reinforcement cage of an underground diaphragm wall and a craning auxiliary cage are produced firstly, wherein the craning auxiliary cage comprises a main reinforcement and a plurality of longitudinal trusses vertically connected with the main reinforcement, a plurality of guide ribs are horizontally and symmetrically welded on the longitudinal trusses, and a guide groove is defined by the main reinforcement and the longitudinal trusses which are combined with the guide ribs; positions of the longitudinal trusses are adjusted so as to enable space defined by the longitudinal trusses combined with the guide ribs to be larger than the width of the lattice column to be installed in a direction perpendicular to the longitudinal trusses; a guide device is detachably fixed in the guide groove, and the top elevation of the guide device is flushed with the ground elevation; a hanging steel bar is welded at the top of the lattice column which is then craned through the hanging steel bar and placed in the guide device, and the hanging steel bar is fixed until the lattice column is craned to a designed elevation; and the guide device is dismounted, concrete is poured on the underground diaphragm wall, and the construction is completed.

The invention provides a thermal insulation pipe threading device and a pipe threading method. The device comprises a transportation device, a guiding device and an outer protection pipe platform which are sequentially arranged from front to back, wherein a trailer is arranged on the transportation device; the bottom of the trailer is fixed on the transportation device; the transportation device can drive the trailer to move back and forth between the far end and the near end of the outer protection pipe platform; two ends of an inner pipe are in overlap joint with the trailer and the guidingdevice respectively; a gap for fixing a bracket is arranged between the transportation device and the outer wall of the inner pipe located between the trailer and the guiding device. According to thepipe threading device, a gap is formed on the inner pipe relative to the transportation device by the aid of the trailer and the guiding device, and support blocks and an alarm line can be fixed before pipe threading, so that the pipe threading efficiency is greatly improved.

The embodiment of the invention relates to the field of smart home, and discloses a ground mat control method and a smart device. In the embodiment, the ground mat control method is applied to a smartdevice, and comprises the steps of: collecting voice information; detecting whether there is a preset keyword in the voice information or not; if there is a preset keyword in the voice information, obtaining temperature control information corresponding to the preset keyword; and controlling each ground mat of a target area to execute the temperature control information, wherein the target area is a preset area by taking natural persons as the center of the ground mats. The embodiment of the invention provides a smart device. The users can control the working states of ground mats of part ofthe areas in a voice mode, and the ground mat control method and the smart device are convenient and rapid in operation, facilitate reasonable utilization of electric energy and are high in intelligence degree.

The invention discloses a radio-frequency mobile communication card and a communication method. Before sending and receiving corresponding radio-frequency data to achieve radio-frequency communication, a radio-frequency unit detects whether resources of a processing unit are occupied first, and then the radio-frequency unit judges whether to send and receive the radio-frequency data according to detection results; and before processing communication data received by a mobile communication unit, the mobile communication unit detects whether the radio-frequency unit is in a working state, and then the mobile communication unit judges whether to process the received communication data according to detection results. The radio-frequency unit of the radio-frequency mobile communication card detects whether the processing unit is in the working state first before achieving the radio-frequency communication, the mobile communication unit detects whether the radio-frequency unit is in the working state first before processing the communication data received by the mobile communication unit to achieve the mobile communication, and therefore the situation that the radio-frequency unit and the processing unit are in the working state at the same time can be avoided, maximum power consumption of the radio-frequency mobile communication card in the process of working can be reduced, and the problem of overlarge power consumption of the radio-frequency mobile communication card in the process of working is solved.

The embodiment of the invention relates to the field of a mobile terminal, and particularly relates to a mobile terminal. The mobile terminal comprises a wired receiving end, a wireless receiving end,a first switch, a second switch, a charge management circuit and a battery, wherein the wired receiving end is connected with the charge management circuit by the first switch; the wireless receivingend is connected with the charge management circuit by the second switch; the battery is connected with the charge management circuit; the wireless receiving end controls on-off of the first switch;and the wired receiving end controls on-off of the second switch. In the mode, according to the embodiment of the invention, at most one charging circuit in a wired charging circuit and a wireless charging circuit can be in a working state of charging, the wired charging circuit and the wireless charging circuit are guaranteed to independently work, a case that the wired charging circuit and the wireless charging circuit simultaneously work, interfere each other and damage the mobile terminal is avoided, and the charging process is safer and more reliable.

The present invention relates to a wireless sensor network-based emergency illumination circuit and a power supply method thereof. The wireless sensor network-based emergency illumination circuit comprises a power supply bus, an illumination power supply bus, a ground wire, an energy storage unit, a contactor I, a contactor II, a voltage sensor and a comparator. The illumination power supply bus is connected with a plurality of shunt-wound load branches, and each load branch is connected with a detection unit. Firstly, by closing the contactor I, the power supply bus charges the energy storage unit, after the energy storage unit is fully charged, by disconnecting the contactor I, and closing the contactor II, the power supply bus supplies power to the illumination power supply bus. The detection unit is used to detect the fault information of each load branch, constructs a ZigBee network by an own ZigBee module, and interacts with a remote control center via the ZigBee network. According to the present invention, the normal work of the load branches can be guaranteed on the condition that the power supply bus can not supply power normally, at the same time, the fault situations of the load branches can be obtained, and the daily maintenance is convenient.

The invention provides a display panel, a driving method thereof and a display device. The display panel comprises a substrate, a light control device, a display device and a touch control device, andthe light control device, the display device and the touch control device are arranged on the substrate; the light control device, the display device and the touch control device work in a first timeperiod, a second time period and a third time period respectively, and any two of the first time period, the second time period and the third time period have no intersection. According to the scheme, parasitic capacitance between the electrodes in the touch control device and the electrodes in the light control device is reduced, so that mutual interference of signals on the two electrodes is reduced, and the phenomenon that the electrodes in the touch control device, the electrodes in the light control device and an electric field, used for driving liquid crystal, in the display device interfere with one another is weakened; and the working reliability of the touch control device, the light control device and the display device in the display panel is improved.

The invention relates to a connecting rod control device. The connecting rod control device includes a fixing base, a motor assembly, a first gear, a second gear, a link shaft, a first tumbler, a second tumbler, a first rotating disk, and a second rotating disk. The motor assembly is arranged on the fixing base. An output shaft of the motor assembly can drive the first gear and the first tumbler to rotate. The first gear is engaged with the second gear. The link shaft is arranged on the fixing base. One end of the link shaft is connected to the second gear. The second gear rotates to drive thelink shaft to rotate. The other end of the link shaft can drive the second tumbler to rotate. The rotating directions of the first tumbler and the second tumbler are opposite. The first tumbler can drive the first rotating disk to rotate. The second tumbler can drive the second rotating disk to rotate. The invention provides the connecting rod control device. The device is simple in overall structure, small in size, low in cost, and convenient in control, and can control an accelerator pedal and a brake pedal to orderly work.

Embodiments of the invention provide a transconductance constant control circuit and a rail-to-rail operational amplifier, and relate to the technical field of integrated circuits. The transconductance constant control circuit comprises a first switch, a second switch, and a control unit. The control unit is electrically connected to the first switch and the second switch. One end of the first switch is electrically connected between a bias circuit and a first input unit, and the other end of the first switch is grounded. One end of the second switch is electrically connected between the biascircuit and a second input unit, and the other end of the second switch is electrically connected to a power supply. The input end of the control unit is electrically connected to the input end of thefirst input unit and the input end of the second input unit. The control unit is used for controlling one of the first switch and the second switch to open or close according to an input signal, so that one of the first input unit and the second input unit works normally, thereby achieving the constant transconductance of the rail-to-rail operational amplifier.

The invention discloses a multifunctional load transfer micro-grid protection power supply mobile vehicle, and the vehicle comprises a vehicle body and a background monitoring center; a compartment is arranged on the vehicle body, a power generation chamber is arranged in the compartment, a diesel generator set is arranged in the power generation chamber, three output ends are arranged in the compartment, and the three output ends comprise a 400V low-voltage output end and two high-voltage output ends. An ATS cabinet is arranged among the diesel generating set, the low-voltage output end and the transformer, an ATS controller is connected with a data acquisition and transmission device and a manual and automatic change-over switch, and the data acquisition and transmission device is connected and communicated with a background monitoring center through a wireless network. Compared with the prior art, the switching between the diesel generating set and the external power supply is realized, the output of various voltages is realized, the working efficiency is improved, the remote monitoring of operating personnel is realized, the number of field personnel is reduced, and the working efficiency is also improved.

The invention relates to a bendable air gun. The bendable air gun comprises a handle, a bendable gun nozzle, an LED lamp, a display screen, a micro camera and a switch button. The handle is mounted at one end of the bendable gun nozzle. The micro camera is mounted on the outer wall of the other end of the bendable gun nozzle. The LED lamp is mounted at the lower part of the micro camera. The display screen is mounted at the upper parts of the handle and the bendable gun nozzle. The switch button is installed on the side face of the handle. The bendable gun nozzle is made of a high-ductility alloy. The bendable gun nozzle has good stability when the air pressure does not exceed 0.6 Mpa. The bending angle of the bendable gun nozzle is 0-150 degrees. The bendable air gun is provided and overcomes the defect that in the prior art, when an air gun cleans a sand core with a cavity, cleaning cannot be conducted or cannot be conducted thoroughly. According to the device, the sand cleaning efficiency and quality are improved, meanwhile, the situation that two hands of a worker work at the same time is avoided, potential safety hazards are reduced, and the safety of the worker is guaranteed.

The invention discloses an efficient sterilization and disinfection device for medical protective clothing, and relates to the technical field of sterilization and disinfection devices for the protective clothing. The disinfection and sterilization effects are improved. The device specifically comprises a main body, two first hollow plates and two second hollow plates, the two first hollow platesand the two second hollow plates are built in cooperation with the main body, the two first hollow plates and the two second hollow plates are symmetrically and correspondingly installed on the innerwalls of the two sides of the main body through screws, first air supply channels are fixed to the outer walls of one sides of the first hollow plates through screws, first fans are installed in the first air supply channels through first fan bases, and first air outlets distributed in an array mode are fixed to the outer walls of the other sides of the first hollow plates through screws. According to the device, by arranging brush belt sleeves, cleaning brush belts and other structures, first draught fans are used for working, wind power is output to the brush belt sleeves through the first hollow plates and the first air outlets, the cleaning brush belts and the brush belt sleeves are driven by airflow to swing, then the cleaning brush belts and the brush belt sleeves make contact with the surface of the protective clothing worn by a user, and the cleaning and the sterilization are conducted.