32results about How to "Confirm working status" patented technology

The invention provides a device and method for identifying a vehicle failure. The device for identifying the vehicle failure comprises a sound collecting module and a sound identifying module, wherein the sound collecting module is used for collecting sounds emitted by an engine; the sound identifying module is coupled with the sound collecting module and used for identifying the sounds emitted by the engine according to the data in a sound database of the engine so as to determine the working state of the engine and present the working state of the engine to a user. The common user can judge the working state of the engine through the sounds emitted by the engine by the aid of the device and method for identifying the vehicle failure.

The invention relates to a display device of a washing machine, which comprises a front control panel provided with a plurality of display windows and a computer board that is internally arranged in the display device. Positions of the computer board, corresponding to the display windows, are provided with a plurality of display lamps. A keyboard board is arranged between the front control panel and the computer board and provided with a case-shaped lamp bracket in which a plurality of lamp bracket holes corresponding to the positions and the number of the display lamps are arranged. The display lamps are respectively arranged in the corresponding lamp bracket holes and light guide pillars which have the shapes matching with the lamp bracket holes and take the shape of pillars are inserted into the lamp bracket holes. The top parts of the light guide pillars are inserted into lamp holes at the rear of the front control panel. The device ensures that lamplight can directly shine on the display window so as to completely cut off spaces for light leakage, thereby effectively avoiding that the lamplight emanates outside the lamp holes and also avoiding an optical crosstalk phenomena caused by the misplacement of lamp holes and comparatively long distant range from the computer board to the front control panel. When a user uses the washing machine, the operative mode of the washing machine can be more accurately determined so as to improve the identifiability.

The invention discloses a planting arm of a rice pot seedling planting machine. A planting arm shell and a planting arm cover are fixed together to form an installing chamber; a pushing rod, a shifting fork and a radial cam are arranged in the installing chamber, the stretching end of the pushing rod is fixedly provided with a hole digger, and the radial cam is installed in the planting arm shell through a rotation shaft; a left axial cam and a right axial cam are fixed to the rotation shaft and arranged on the two sides of the radial cam; the planting arm cover is rotatably provided with a left swing arm and a right swing arm, the corresponding swing arms are matched with the cam surfaces of the corresponding axial cams in the installing chamber, and the corresponding swing arms are fixedly connected with corresponding seedling taking clamps outside the installing chamber. When power is input into the rotation shaft, the pushing rod returns back at the seedling taking point, and the seedling taking clamps grab seedlings from a pot tray from an opened state to a closed state; at seedling planting points, the hole digger stretches out to dig holes in soil and then returns back, at the moment, the seedling taking clamps loosen, the seedlings are planted in the holes, therefore, the seedlings cannot be damaged in the whole seedling planting process, and the planting arm can be widely applied to the rice pot seedling planting machine.

The invention provides a constant-current source circuit with current monitoring capability. The constant-current source circuit comprises a basic constant-current source circuit, a current detection circuit, a voltage conditioning circuit, a comparison circuit, a signal retaining circuit, a power supply control circuit and a power conversion circuit, wherein the power conversion circuit is used for providing working voltages to the other circuits; the current detection circuit is used for converting output currents of the basic constant-current source circuit into voltage signals and providing the voltage signals to the voltage conditioning circuit; the voltage conditioning circuit is used for conditioning the voltage signals and then outputting the voltage signals to the comparison circuit; the comparison circuit is used for comparing conditioned voltages with a preset voltage and sending an on / off control signal to the signal retaining circuit; the signal retaining circuit is used for outputting the signal to the power supply control circuit; the power supply control circuit is used for controlling the power conversion circuit to perform power supply or power breakdown on the basic constant-current source circuit. The constant-current source circuit can be used for monitoring the output currents of a constant-current source in real time, and cutting off the power supply of the constant-current source when the output current exceeds a set value, thus cutting off the output current of the constant-current source so as to avoid damages on electric equipment.

The invention provides a state detection circuit and a state detection method of an electromagnetic brake. The electromagnetic brake includes a coil. The state detection circuit includes: an acquisition unit electrically connected to the coil and obtaining an electrical signal of the coil; a processor determining the electromagnetic brake based on the electrical signal. working status. The state detection circuit and state detection method according to the embodiments of the present invention directly detect the electrical signal of the coil and determine the working state of the electromagnetic brake without redesigning the internal structure of the electromagnetic brake. The state detection circuit and the state detection method according to the embodiments of the present invention determine the working state of the electromagnetic brake according to at least one of the amplitude of the electrical signal and the duty cycle of the PWM signal, and can detect abnormal states of different types of electromagnetic brakes .

The invention provides a project management method. The method comprises the following steps: (A) analyzing a resource demand of at least one project according to a project view of the project; (B) analyzing an available time of the resource according to a resource view of at least one resource; and (C) calling the resource to the project according to the available time of the resource and the resource demand.

The invention relates to a vehicle-mounted cell phone wireless charging and transmitting system and a control method therefor. The vehicle-mounted cell phone wireless charging and transmitting system comprises a power supply unit, an over-voltage protection circuit connected with the power supply unit, a high-frequency switch control circuit connected with the over-voltage protection circuit and a wireless transmitting antenna connected with the high-frequency switch control circuit, wherein a current sampling circuit and a central processing unit connected with the current sampling circuit are arranged between the over-voltage protection circuit and the high-frequency switch control circuit; the central processing unit is also connected with the high-frequency switch control circuit and used for controlling the connection and disconnection of the high-frequency switch control circuit; the current sampling circuit is also connected with a current detection unit; a temperature collection unit, a status indication unit, a clock circuit and a JTAG (downloading program) unit are arranged on the central processing unit; the high-frequency switch control circuit comprises a drive circuit, a switching protection circuit connected with the drive circuit and a high-frequency switch connected with the switching protection circuit, and particularly the switching protection circuit is connected with an input terminal of the high-frequency switch; and the input terminal of the high-frequency switch is also connected with one or more output voltage sampling circuits; and an output terminal of the high-frequency switch is connected with one or more transmitting coils.

The present invention relates to the technical field of vehicles, and discloses an engine start-stop control method, comprising the following steps: S11, step on the brake pedal; S12, the current vehicle speed of the vehicle is not greater than the first preset speed, record the size of the physical quantity, the current vehicle speed drops When reaching the second preset speed, record that the vehicle speed of the vehicle is not greater than the second preset speed, until the maximum value of the physical quantity in the first preset time is the upper limit of execution; S13, after the time reaches the first preset time, the physical quantity The current value of the current value is the comparison value and the variation of the physical quantity in any second preset time length is the actual variation; S14, the comparison value is not less than the execution upper limit or the actual variation is greater than the preset value, then it is determined that the driver has the intention to stop; S15, the engine enters the shutdown state when the basic shutdown condition is satisfied. The engine start-stop control method disclosed in the present invention can quickly identify the driving intention of the driver and combine it with whether the stop condition is met, so as to confirm the working state of the engine.

The invention relates to the field of motors, and in particular relates to a motor based on a disturbance compensation position system. The motor based on the disturbance compensation position systemcomprises a bottom plate, an indication structure, a junction box, a cooling structure, a fixing sleeve, a motor housing, an anti-scrap structure and a driving structure; the fixing sleeve used for fixing the motor housing is glidingly connected with the bottom plate; the driving structure used for limiting the fixing sleeve is arranged in the bottom plate; the cooling structure used for heat dissipation and the anti-scrap structure used for preventing the rotating shaft of the motor from being damaged are respectively arranged at two ends of the motor housing; and the indication structure used for observing the vibration condition of the motor is arranged on the bottom plate. According to the motor based on the disturbance compensation position system in the invention, the driving structure is used with the fixing sleeve in a matched manner; therefore, the motor housing is conveniently assembled and disassembled rapidly; the overhaul maintenance efficiency and the quality of internalcomponents of the motor housing are greatly improved; the cooling structure is arranged at the end part of the motor housing, so that circumferential air circulation of the motor housing is promoted;therefore, the ventilation and heat dissipation quality can be greatly improved; and thus, the vibration condition of the motor can be intuitionally observed conveniently through the indication structure.

The invention discloses a detection method for a transformer oil cooling circuit, comprising: collecting the oil temperature of the transformer oil in the cooling circuit and the actual working current value of the oil pump at the oil temperature; The theoretical working current value of the oil pump; analyzing the actual working current value and the theoretical working current value to determine the working state of the oil pump and the oil flow pipeline in the cooling circuit. The detection method can accurately detect the working state of the oil pump and the oil flow pipeline in the cooling circuit, comprehensively and truly reflect the operation conditions of the oil pump and the oil flow pipeline, reduce fault false alarms, and improve detection reliability. The invention also discloses a transformer oil cooling circuit detection system, device, electric locomotive and computer-readable storage medium, all of which have the above-mentioned technical effects.

The invention provides an intelligent water cup for detecting water intake to improve detection precision of water intake, and the intelligent water cup comprises a water cup body, and further comprises multiple pressure sensors, multiple liquid level sensors, a three-dimensional acceleration sensor, a horizon sensor, multiple infrared sensing units and a water intake calculating unit, wherein the multiple pressure sensors are arranged at the bottom and side wall of the water cup body; the multiple liquid level sensors are arranged on the side wall of the water cup body; the three-dimensional acceleration sensor is arranged at the bottom of the water cup body; the horizon sensor is arranged at the bottom of the water cup body; the multiple infrared sensing units are arranged at the top and side wall of the water cup body; the water intake calculating unit is arranged at the bottom of the water cup body. Water intake can be obtained according to the detection results of the pressure sensors, liquid level sensors, three-dimensional acceleration sensor, horizon sensor and infrared sensing units.

The invention relates to the field of motors, and in particular relates to a motor based on a disturbance compensation position system. The motor based on the disturbance compensation position systemcomprises a bottom plate, an indication structure, a junction box, a cooling structure, a fixing sleeve, a motor housing, an anti-scrap structure and a driving structure; the fixing sleeve used for fixing the motor housing is glidingly connected with the bottom plate; the driving structure used for limiting the fixing sleeve is arranged in the bottom plate; the cooling structure used for heat dissipation and the anti-scrap structure used for preventing the rotating shaft of the motor from being damaged are respectively arranged at two ends of the motor housing; and the indication structure used for observing the vibration condition of the motor is arranged on the bottom plate. According to the motor based on the disturbance compensation position system in the invention, the driving structure is used with the fixing sleeve in a matched manner; therefore, the motor housing is conveniently assembled and disassembled rapidly; the overhaul maintenance efficiency and the quality of internalcomponents of the motor housing are greatly improved; the cooling structure is arranged at the end part of the motor housing, so that circumferential air circulation of the motor housing is promoted;therefore, the ventilation and heat dissipation quality can be greatly improved; and thus, the vibration condition of the motor can be intuitionally observed conveniently through the indication structure.

The invention relates to a multiple protection DC voltage adjusting apparatus and method. The apparatus comprises an input rectification module, a boost inductor, an input detection module, a shutdown protection module, a boost module, a step-down module, a freewheeling inductor and an output control module. According to the invention, unstable voltages and currents are adjusted to quite stable power supplies which can be effectively utilized by users; a chip is controlled to automatically detect input and output voltage values, and a circuit working states is determined; and a mechanical and circuit interlocking structure is formed by use of normally-open and normally-closed contacts of relays with an adjusting circuit, current impact is prevented through multiple protection, the operation is stable, and the safety and the reliability are high.

The invention relates to a self-checking circuit of an analog-to-digital conversion circuit. The self-checking circuit comprises a main control module, a first switch module and a second switch module, wherein the main control module outputs a PWM signal, generates a first reference voltage in a high level interval of the PWM signal, and generates a second reference voltage in a low level intervalof the PWM signal; the first switch module outputs a first standard voltage to the main control module in response to the high level of the PWM signal; the second switch module is used for outputtinga second standard voltage to the main control module in response to the low level of the PWM signal; the main control module determines the working state of the self-checking circuit according to a first difference value between the first reference voltage and the first standard voltage and a second difference value between the second reference voltage and the second standard voltage. The reference voltage and the standard voltage can be periodically checked, the situation that faults cannot be found in time due to failure of the self-checking function caused by accidental situations is avoided, and the reliability of the self-checking function of the analog-to-digital conversion circuit is improved.

The invention provides a lifter control method based on a proportional control valve, and relates to the field of agricultural machinery. The lifter control method comprises the following steps: respectively obtaining the angles of two lifting arms, and processing the angles to obtain an actual buried depth of an agricultural implement; comparing a set soil buried depth with the actual buried depth, performing judgment, and outputting adjustment parameters; adjusting the action of a control valve group according to the adjusting parameters; adjusting the angle of the lifting arm to change the soil buried depth of the agricultural implement to meet the set soil buried depth. According to the lifter control method, the state of the agricultural implement is adjusted in real time through the lifting arm acting independently, the action of the lifting arm is fed back and adjusted according to the state of the agricultural implement, stable operation of the agricultural implement is kept, and the operation quality is improved.