56results about How to "Control on time" patented technology

The invention provides a multi-pulse gate delay range gating laser imaging radar and belongs to the technical field of laser radars, wherein the radar provided by the invention solving the problem of the existing range gating laser imaging radar, such as low range resolution. The multi-pulse gate delay range gating laser imaging radar is characterized in that the clock signal of a clock signal source is output to a synchronous pulse control circuit; the synchronous pulse control circuit transmits a drive pulse signal to a pulse modulation laser, and transmits a delay signal to a control system at the same time; the control system can transmit the ordinal number of drive pulse signals emitted by the synchronous pulse control circuit to an image coding system after the control system transmits the delay signal to a range gate delay circuit; the image coding system numbers the received optical signal images according to the same ordinal number; the optical signal images are collected by an ICCD (intensified charge coupled device) detector; and an optical transmitting antenna and an optical receiving antenna are respectively used for transmitting laser beams and receiving a target laser echo pulse signal. The multi-pulse gate delay range gating laser imaging radar is applicable to the range detection of a target.

The invention provides a refrigerating control method and device for a refrigerator. The refrigerating control method for the refrigerator comprises the steps that the time bucket when opening times of a refrigerator door body exceeds the preset threshold value is obtained, and the opening times of the refrigerator door body is obtained according to door opening and closing record statistics; the run time of the refrigerator is obtained; and whether the run time is within in the time bucket or whether time between the run time and the starting point of the time bucket is smaller than the first preset time threshold value is judged, and if any one of the judgment results is yes, a refrigerating system of the refrigerator is forbidden to be started till the time bucket is finished. According to the scheme of the refrigerating control method and device for the refrigerator, the starting time of the refrigerating system of the refrigerator can be controlled, and the situation that the refrigerating system is started within the time bucket when a user opens the door body frequently or is started in the time close to the time bucket is avoided; the quantity of cold in a storage room of the refrigerator is effectively prevented from being lost, energy consumption of the refrigerator is reduced, and the using experience of the user is improved.

The invention discloses a low-current system single-phase earth fault line selection control circuit which comprises low-current system single-phase earth fault line selection control branch circuits used for controlling mixing electric transmission line branch circuits. Each low-current system single-phase earth fault line selection control branch circuit comprises a control unit, a motion unit and 2n zero-sequence current sensors, wherein the motion unit is used for controlling and predetermining one mixing electric transmission line branch circuit, and the 2n zero-sequence current sensors are installed in the mixing electric transmission line branch circuits and used for collecting zero-sequence current signals in cables. The control units receive zero-sequence currents sent by the zero-sequence current sensors and carry out judgment, if zero-sequence current values of two ends of any cable are consistent, the control units determine that earth fault points are not in any cable, the control units allow to send an automatic reclosing lock command, reclosing lock is carried out by the motion units, and if the zero-sequence current values at the two ends of at least one cable are different, the control units determine that a cable section is connected to the ground and output judgment results. According to the low-current system single-phase earth fault line selection control circuit, the reclosing lock is conditionally carried out, and therefore explosion caused by the reclosing lock when the fault points are generated in the cable section is avoided.

The invention discloses a control system and a control method of an intelligent vacuum degassing machine, . The control system comprises a controller, degassing tank, a booster tank pump, a water inlet pipeline, a first water outlet pipeline and a second water outlet pipeline; the water inlet of the degassing tank is connected to the water outlet of the water circulation system through the water inlet pipeline; the water outlet of the degassing tank is connected to the booster tank pump through a first outlet pipeline; one end of the second water outlet pipeline is connected to the booster pump; the other end of the second water outlet pipeline is connected to the external water circulation system; the water inlet pipeline is provided with a solenoid valve and a temperature sensor; the intelligent vacuum degassing machine is provided with a real-time online gas monitoring device, a pressure sensor and a liquid level sensor; the solenoid valve, the temperature sensor, the real-time online gas monitoring device, the pressure sensor and the liquid level sensor are electrically connected to the controller; and the controller performs control on the system through the high efficiency automatic control mode and the energy saving automatic control mode. The control system and control method can realize online and intelligent control on the gas, the temperature and the pressure.

The invention provides a nitrogen generation control method and device of a refrigerator. A seal space is arranged in a storage compartment of the refrigerator, the refrigerator is provided with a nitrogen generation device for providing nitrogen for the seal space, and the nitrogen generation control method of the refrigerator comprises the steps that the time quantum that the opening frequency of the seal space exceeds the preset threshold value and the running moment of the refrigerator are obtained; and whether the running moment is within the time quantum or not or time of the starting point from the running moment to the time quantum is smaller than the first preset time threshold value or not is judged, under the condition that the judgment result is yes, opening of the nitrogen generation device of the refrigerator is forbidden until the time quantum is finished. According to the scheme, the opening time of the nitrogen generation device of the refrigerator can be controlled, a user can be prevented from opening the nitrogen generation device in the time quantum that the seal space is frequently opened or at the time close to the time quantum, nitrogen in the seal space can be effectively prevented from losing, energy consumption of the refrigerator is reduced, and the use experience of the user is improved.

The invention discloses a constant voltage output switching power supply with a high power factor, which is composed of a rectifying and filtering circuit, a power converter, a control circuit, an output voltage feedback circuit, an inductive current zero-crossing feedback circuit and a chip power supply circuit. The constant voltage output switching power supply is characterized in that alternating current is inputted and converted into direct current through the rectifying and filtering circuit, the direct current is inputted into the power converter, the direct current is outputted to a load circuit from the power converter, then detection is carried out on a main power circuit through the output voltage feedback circuit, the inductive current zero-crossing feedback circuit and the chip power supply circuit, an acquired result is inputted into the control circuit so as to enable the control circuit to operate and obtain a control scheme, and output of the control circuit is transmitted to the power converter so as to perform control on the power converter. According to the constant voltage output power supply system with a high power factor, the turn-on time of a power switch tube is controlled to be constant through design of the control circuit and the feedback circuit; constant voltage output can be achieved in a full voltage range, and a high power factor can be ensured.

The invention discloses a transmitting and receiving change-over switch for a magnetic resonance system, the magnetic resonance system comprises a radio frequency antenna, a transmitter and a receiver, wherein the transmitter and the receiver are respectively connected with the radio frequency antenna through a passive T/R switch. The magnetic resonance system is characterized in that an active radio frequency switch is connected in series between the passive T/R switch and the receiver, and the passive T/R switch adopts a two-stage passive T/R switch. The active radio frequency switch is controlled by a receiving gate control signal: in a radio frequency emission period, the receiving gate control signal is at a low level, and the active radio frequency switch is turned off; in the signal receiving period, the receiving gating signal is at a high level, the active radio frequency switch is turned on, and the receiving access is turned on. Compared with a traditional passive T/R switch, the switch formed by connecting the passive T/R switch and the active radio frequency switch in series can provide higher isolation for the pre-amplifier, and the situation that the pre-amplifier is damaged or saturated due to the fact that the isolation of the traditional T/R switch is not high is avoided.

The invention discloses an NMOS switch tube driving circuit. A boost open module outputs a turn-on voltage which can make an NMOS switch tube be turned on. After the NMOS switch tube is turned on, a superposed voltage of the turn-on voltage and a source voltage of the NMOS switch tube is output. Through turn-off control of the boost open module, the NMOS switch tube is turned off. After the NMOS switch tube is turned off, a discharge module releases charges of a grid electrode and a source electrode of the NMOS switch tube so that a purpose of rapidly turning off the NMOS switch tube is reached. Based on the condition that the NMOS switch tube is controlled to be normally turned on and turned off, a delay module can effectively control time for the boost open module to output a voltage tothe grid electrode of the NMOS switch tube and then effectively control turn-on time of the NMOS switch tube so that a purpose that the NMOS switch tube is slowly turned on is reached. A condition that a surge current with large transmission flows into a connected load is avoided and the load is prevented from being damaged.

A power converter comprises an inductor (LP) and a controllable switch (CF) coupled to the inductor. A switch controller (1) supplies a periodic switching signal (VC1) which has a repetition time and a duty cycle to the controllable switch (CF) to generate a periodical inductor current (IL) through the inductor. A generator (2) generates an emulated signal (IE) based on timing information (TI) which represents the repetition time and the duty cycle to emulate a current signal being representative of the inductor current. A comparator (3) compares the emulated signal (IE) with the current signal (CS) to obtain an error signal (E). A generator controller (4) receives the error signal (E) to supply a control signal (VD) to the generator (2) to adapt a property of the emulated signal (IE) to become substantially equal to a property of the current signal (CS).

The invention discloses a variable filling device for veterinary drugs, and mainly relates to the field of drug filling. The variable filling device comprises a dispensing device and a computer system; the dispensing device is arranged on the top surface of a table body and comprises a medicine bottle, an automatic filling device and a medicine liquid sealing tank; the automatic filling device is provided with a medicine filling needle and a medicine bottle fixing claw, after the medicine bottle fixing claw fixes the medicine bottle, the medicine filling needle is used for filling medicine liquid into the medicine bottle; and the medicine liquid sealing tank is connected with the medicine filling needle through a pipeline, a plurality of valve bodies and pump bodies are arranged on the pipeline in a connected mode, and the pump bodies and the valve bodies control medicine liquid conveying. The variable filling device for the veterinary drugs provided by the invention has the beneficial effects that the situation that the proportion conversion of the animal weight and the veterinary drug dosage is inaccurate is avoided, meanwhile, medicine waste or pollution caused by the fact that the extracted dosage is difficult to grasp when the drugs are extracted can be avoided, the use efficiency of the drugs is improved, and time is also saved.

The invention relates to an enhanced sonar auxiliary distance gating laser underwater imaging device and method. The device comprises a double-laser enhanced illumination design and a sonar auxiliarytarget distance and azimuth pre-detection system. According to the device and the method, the illumination intensity of a target is improved through an enhanced double-laser illumination system, so that the detection distance of the target can be prolonged; and in addition, the sonar detection system can detect the distance and orientation of the target in advance, the receiving detector window time of a distance gating control circuit is controlled more accurately through an embedded processing module, and the intensity, the orientation and the polarization state of the laser light source arecontrolled, so as to achieve long-distance high-quality imaging detection of the target. According to the method and the device, an inverted triangle structure design is adopted, so that the enhancedsonar auxiliary underwater laser detection effect is further optimized.

The invention discloses a handheld medical cold-sealed air plasma jet spray gun in the field of plasma sterilization and disinfection, which comprises a device shell, and a discharge electrode, a Tesla coil, a touch screen, a cooling fan, an internal circuit, a control switch and a power lithium battery which are arranged in the device shell, wherein the power lithium battery is connected with the touch screen, the control switch and the Tesla coil through the internal circuit. The touch screen can regulate and control the pulse width of a square wave pulse signal and control the conduction time of an IGBT, on the one hand, tip pulse discharge is controlled, and the discharge jet flow temperature is reduced; on the other hand, the cooling fan is driven to be linked, when the pulse width is widened, the IGBT conduction time is prolonged, the rotating speed of the cooling fan is increased, the wind speed is increased, and the purpose of reducing the discharge jet flow temperature is achieved. Stable, continuous and high-density cold plasma is generated on the discharge electrode. The handheld medical cold-sealed air plasma jet spray gun has the advantages of high sterilization efficiency, universality and flexibility, can meet the sterilization requirement in the medical field, and is smaller in equipment size, convenient to carry and simple to operate.

The invention discloses an onboard control system capable of controlling an intelligent audio-video device. The system is characterized by including: a wireless communication module, a GPS module, a driving data acquisition module, a calibration module, an intelligent audio-video device control module and a processor. The GPS module acquires a user's current position and map road condition information, and calculates a predicted time for going through each road section and a predicted time for arriving at home. The driving data acquisition module acquires a real-time driving velocity through a CAN total interface line so as to obtain an actual time for going through current road section. The calibration module conducts ratio calculation between the actual time for going through the current road section and the predicted time for going through the current road section, and a difference value coefficient P is obtained. The processor receives the predicted time for arriving at home from the GPS module and P value from the driving data acquisition module, calculates the predicted time for arriving at home after calibration, and based on a preheating time provided by the intelligent audio-video device control module, compares the preheating time with the predicted time for arriving at home after calibration, and transmits a preheating control instruction through the wireless communication module based on a comparison result.

The invention relates to a stator-cover unit (1) for a camshaft adjuster (31), which is produced in one piece from a sintered material, comprising a stator (3) and a locking cover (5) which has a slot (17) for rotationally locking a rotor (33). According to the invention, the sintered material has at least in the region of the slot (17) a Vickers hardness of 400 HV to 850 HV. The invention further relates to a camshaft adjuster (31) having such a stator-cover unit (1) with the aforementioned properties, in which a rotor (33) having a number of radially outwardly extending rotor vanes (35) is positioned. The stator-cover unit (1) is simple to produce. A separate insertion part for the slot (17) is not required.

The invention relates to the technical field of communication manhole security, in particular to intelligent communication manhole security equipment. The intelligent communication manhole security equipment comprises an electronic lock, a power supply module, an external power supply connection piece and a manhole cover wing. The technical scheme of the intelligent communication manhole securityequipment includes that the external power supply connection piece is added on the basis of the electronic lock which can be monitored and controlled, so that in the case of internal power supply deficiency, an external power supply can be started; intelligent communication manhole security equipment is low in deployment difficulty and can be obtained by reforming an existing manhole cover directly, and the unlocking time can be controlled; at last, locking of the manhole cover is completed by a controllable telescopic lock body and the manhole cover wing fixed below a manhole, so that under special circumstances, an electronic lock cover can be opened by smashing a manhole sealing piece welded with the manhole cover wing by an electric drill forcibly.

The invention discloses a rigid solid quick shutdown radar transmitter modulation device comprising a starting circuit, a shutdown circuit, a pulse transformer and a vacuum tube. The starting circuitcomprises multipath MOS transistors which are connected in parallel. The starting circuit is connected with the starting trigger and the pulse transformer. The shutdown circuit comprises an isolationdriving circuit, a pulse isolation transformer circuit, a third MOS transistor driving circuit and a shutdown-high-speed MOS transistor which are connected in turn. The isolation driving circuit is connected with the shutdown trigger. The shutdown circuit and the starting circuit are connected with the pulse transformer and the vacuum tube. Multipath MOS transistors are connected in parallel to complete shunting and reduce internal resistance, and the starting circuit MOS transistor is controlled to be conducted through the starting trigger pulse and the starting time of the MOS transistor iscontrolled. The primary side of the pulse transformer is controlled to be shut down through the shutdown trigger pules and the shutdown circuit MOS transistor is controlled to be conducted so that quick shutdown can be realized, the pulse width can be accurately controlled and control of different pulse widths and different repetition frequencies can be realized.

The invention discloses a crane and a hoist braking control system thereof. The control system comprises a winch motor, a hoist brake and a controller, wherein the hoist brake is communicated with a falling port of the winch motor and is also communicated with a braking oil inlet way or a braking oil drainage way by a directional control valve; an oil way communicated with a start port of the winch motor is provided with an oil pressure sensor; and the controller is configured to output a first signal for controlling to switch the directional control valve to enable the hoist brake to be communicated with the braking oil inlet way according to a signal of the oil pressure sensor and output a second signal for controlling to switch the directional control valve to enable the hoist brake to be communicated with the braking oil drainage way according to a signal representing the end of hoisting a weight. Therefore, when the weight is hoisted, the hoist brake can be started after a hydraulic system sets up a certain pressure, i.e., start time of the hoist brake can be controlled, so that secondary falling of the weight, which is generated when the weight is hoisted, is effectively avoided.

The invention discloses environment-friendly home energy-saving water using equipment for rural use. The equipment comprises a pool, a straight pipe, a water storage box, a water pump, a one-way valve, and a cabinet table, the pool is fixedly mounted on the cabinet table, the water storage box is mounted in the cabinet table, the water storage box is fixedly mounted on the bottom end in the cabinet table, the pool communicates with the water storage box through a straight pipe, the bottom end of one side of the water storage box is provided with the one-way valve, the one-way valve is in tightconnection with one end of the water pump through a water pipe, a faucet is rotated to switch a direct flowing water faucet and an atomizing head, according to actual needs, water is saved, a controlswitch is used, the opening time of an electromagnetic valve is controlled, the aim of saving water is achieved, used water is treated and is stored in a water needing box to be used by a closestool,the equipment is simple in structure, convenient to use and capable of saving a large amount of water resources and preventing waste, according to actual needs, the water flowing amount of the faucetis adjusted, and the energy-saving and environment-friendly needs are met.

The invention discloses a battery energy storage system, which comprises a confluence detecting unit, a detecting and protecting unit, a human-machine interaction unit, a master control unit, a battery cluster balancing module and an energy storage unit. The confluence detecting unit, the detecting and protecting unit, the human-machine interaction unit, the battery cluster balancing module and the energy storage unit are all in electrical signal connection to the master control unit. The invention also discloses an online balancing method for the battery cluster in the system. The balancing method solves the problem in the prior art that the energy storage system is required to be shut down to wait for maintenance, and greatly improves the utilization rate of the battery system.

The invention relates to the technical field of air conditioners, particularly provides an air conditioner degerming control method, and aims to solve the problems that when an air conditioner performs degerming operation indoors, a user cannot intuitively improve the degerming effect after a degerming module is started, so that the starting time of the degerming module is prolonged, energy waste is caused, and the service life of the degerming module is shortened. In order to achieve the purpose, the air conditioner sterilization control method comprises the steps that in response to a received sterilization instruction, an air conditioner is controlled to sequentially enter a first sterilization stage and a second sterilization stage to execute sterilization operation of a first sterilization duration and a second sterilization duration correspondingly; and controlling the air conditioner to respectively display a first sterilization effect icon corresponding to the first sterilization stage and a second sterilization effect icon corresponding to the second sterilization stage in the first sterilization stage and the second sterilization stage. By means of the method, the sterilization effect can be visually achieved, the starting time of the sterilization module is shortened, energy is saved, the service life of the sterilization module is prolonged, and the use experience of a user is further improved.

The invention relates to the technical field of image detection, in particular to a detection device capable of recognizing printer colors, and the device comprises a camera which is used for shootingthe information of a label on the printer; a position adjusting assembly which is used for adjusting the relative position between the printer to be detected and the camera; a signal processing assembly which is correspondingly connected with the camera and the position adjusting assembly, and the signal processing assembly is used for controlling the position adjusting assembly to work, obtaining images shot by the camera, processing the images and making a judgment. The method has the advantages that the camera is arranged to shoot the information of the label on the printer; the position adjusting assembly adjusts the relative position between the printer and the camera, guarantees the effect of label shooting, reduces the image processing difficulty of the signal processing assembly,improves the stability of the signal processing assembly, can control the position and starting time of the camera, and can also control the position adjusting assembly.

The invention discloses a power conversion device and a control method thereof. The power conversion device includes a primary side rectifier, a main converter, a secondary side rectifier, a secondaryside feedback controller, a PWM controller, and a driving compensator. The primary side rectifier is configured to generate a first voltage. The main converter includes a power transistor and is configured to adjust the first voltage to generate a second voltage according to a control signal. The secondary side rectifier is configured to generate an output voltage according to the second voltage.The secondary side feedback controller is configured to generate a feedback signal according to the output voltage. The PWM controller is configured to generate a PWM signal according to the feedbacksignal. The driving compensator includes a driving resistor circuit. The PWM signal outputs the control signal through the driving resistor circuit, and the driving compensator adjusts a resistance value of the driving resistor circuit according to the first voltage. The power conversion device disclosed in the invention effectively controls the driving ability of the power crystal, further improves the efficiency of the power conversion device, and reduces electromagnetic interference.