76 results about "Normal periods" patented technology

The invention discloses a train operation control system based on a space-air-vehicle-ground integration network. The train operation control system comprises an aircraft, a satellite, a wireless communication base station, vehicle-mounted equipment, trackside equipment and a dispatching center, wherein the aircraft is used for achieving train speed measurement, train location, line or turnout condition monitoring and a communication function; the satellite is used for achieving train speed measurement, train location and a communication function; the wireless communication base station is used for achieving a communication function; the vehicle-mounted equipment is used for achieving train speed measurement and train location, train control and a communication function; the trackside equipment is used for achieving train speed measurement, train location, line or turnout condition monitoring and turnout control; the dispatching center is used for achieving line or turnout resource dispatch and trackside equipment control. By means of the space-air-vehicle-ground integration network, dynamic adjustment of transport capacity of low-transport-capacity rails is achieved, and the requirement for high transport capacity in a special period is met. In addition, the train operation control system can operate according to an ordinary train operation control system in a normal period, the cost is reduced, and the train safety is guaranteed through redundancy design.

The application discloses a fixed-time charging method and a fixed-time charging device for an electric automobile charging pile for peak regulation of a power distribution network. The fixed-time charging method and the fixed-time charging device are suitable for application scenes such as a charging pile at the parking side of a user, which can be occupied for a long time and has low charging current. By using the method and the device, the charging pile preferably selects a low-valley period for charging, and then normal period and final peak period according to load characteristics of a power distribution network line; an optimal fixed-time charging scheme which is most beneficial to peak regulation of the power distribution network is automatically generated, so that fixed-time charging of a to-be-charged electric automobile is realized by the power distribution network with a relatively-small electrical load, and on-site peak regulation is realized. Therefore, according to the method and the device, on the premise of meeting charging demands of the user and peak regulation demands of the power distribution network, the charging pile can select the period with lower use expenses for automatic fixed-time charging; optimal charging time is used as the reference of peak regulation of the power distribution network, and real-time communication between the peak regulation and scheduling is not needed; in addition, real-time adjustment of the load of the power distribution network line is not needed, so that a peak regulation realizing mode is simpler and more convenient.

According to one embodiment of the present invention, a method for searching for an access point in a terminal supporting a multiple wireless access scheme is provided. The method may comprise the steps of; receiving, from a base station using a first wireless access scheme, information relating to an access point using a second wireless access scheme; determining whether one or more access points exist using the second wireless access scheme in the cell coverage of the base station on the basis of the information: searching for an access point accessible for a period that is shorter than a normal period when determining that the access point using the second wireless access scheme exists; and accessing the found access point using the second wireless access scheme.

The invention discloses a dynamic monitoring system for early warning against slope slide of a tailing pond of a strip mining pit. The system comprises a pond water level change monitoring unit, a land surface crack and displacement monitoring unit, a deep part deformation and displacement monitoring unit and a microscopic tour-inspection monitoring unit. The system has the advantages that main factors that cause slope slide can be analyzed, and monitoring has focuses. The significant structure surface that causes slop slide is analyzed for the engineering geological environment of the tailing pond of the strip mining pit, and the positions, depths and amount of deep part displacement monitoring points are determined correspondingly; and water level change is determined to be a main factor that influences the slope stability via a finite element reduction method and indoor compression test. Monitoring for water level change is enhanced, the monitoring frequency of other monitoring units is determined according to water level change data, focus monitoring is carried out in key periods, and common monitoring is carried out in normal periods. The invention also discloses a monitoring method in which the monitoring system is used.

The invention relates to an energy control method and a control system of a optical storage and charging system. When a power grid is in a peak period, if the photovoltaic power is greater than the load power, the excess power is used for charging the energy storage unit. If the photovoltaic power is less than the load power, controlling the discharge of the energy storage unit to supplement the required power; If the photovoltaic power is greater than the load power, the excess power is used to charge the energy storage unit when the power grid is in the normal period. If the photovoltaic power is less than the load power, the energy storage unit is controlled not to discharge, and all the power required is provided by the power grid. The energy control method provided by the invention fully utilizes the optical storage coordination control and reasonably cooperates with the commercial power, so that the electric energy in the energy storage unit is used as much as possible during thepeak period, and the electric energy of the power grid is not used; In peacetime, the power in the grid is used as much as possible, and the power in the energy storage unit is not used, so as to achieve the balance of power consumption and maximize the income, and ensure the power supply requirements on the demand side.

A PLL circuit is provided with a lock/unlock detection circuit which detects the locked or unlocked state of the PLL circuit by comparing the phases of a horizontal synchronizing signal with each other and an internal synchronizing signal generating circuit which outputs the comparison signal as an internal synchronizing signal when the locked state is detected or outputs the horizontal synchronizing signal as an internal synchronizing signal when the unlocked state is detected. Another mode of a PLL circuit is provided with a skew detecting circuit which resets a frequency dividing circuit upon detecting a skew which is deviated from a normal period in an external synchronizing signal, generates a dummy pulse upon detecting that no skew occurs in the external synchronizing signal in the normal period, and generates a reference signal in combination of the dummy pulse with the external synchronizing signal. When the skew detection circuit detects a skew, the circuit also resets a phase comparator circuit. A digital display apparatus having such a PLL circuit prevents disturbance of the image when the PLL circuit is in an unlocked state or a skew occurs.

A spa control system that measures the flow of water through the heater of a spa and accurately reports water temperature in the spa using only one solid-state sensor in the heater. The working condition of the sensor is first determined by energizing the spa heater for a brief period of time, with the circulation pump de-energized, then quickly de-energizing the heater and watching for a heat rise at the sensor. A small rise is sufficient to proceed with the flow test. The flow rate is now determined by energizing the pump, with the heater still de-energized, and observing the rate at which the moving water cools the inside of the heater. If there is no circulation of water through the heater, the temperature of the sensor will continue to rise from the energy applied when the heater was briefly energized. This rise will be quite significant and a clear indication of a flow problem. Conversely, with normal flow, the inside of the heater will be cooled to approximately the same temperature as the spa water in just a few seconds. If the flow is found to be adequate, the heater may be energized for a normal period of time. Since, while cooling, a measured number of degrees is dropped in a measured number of seconds, a flow rate can be reported to the user as an estimate of gallons per minute. The sensor is now carefully monitored for a sudden increase in temperature, which would indicate loss of a normal flow of water. It is known that the temperature of the water in the spa will be within one or two degrees of the observed temperature at the sensor in the heater, even when the heater is energized. The water temperature can, therefore, be accurately reported to the user just from measuring the temperature of the water in the heater. The only problem with making all measurements at the heater is that the real water temperature is unknown when the pump is not running. This problem can result in short heating cycles, or create the need to run the pump several times per day just to check on the real water temperature. The present invention uses artificial intelligence to find the proper time to turn the pump back on at a time when the spa is just beginning to need heat. Any errors in finding this time are added back to subsequent calculations to make future cycles more accurate.

The invention discloses a flood pre-disaster early warning method based on a sequential water scope remote sensing image. The method comprises the following steps: 1, inputting a multi-temporal high-resolution ground surface reflectivity remote sensing image and performing data preprocessing; 2, calculating a water body exponent, and based on a water body exponent image, extracting a water body scope binary image; 3, extracting water body features of a to-be-detected period and water body features of a normal period; 4, respectively performing stacked comparison analysis on the water body features of the to-be-detected period and the water body features of the normal period to detect abnormity information; and 5, analyzing the tracked detected abnormity information, and if a place which is originally not supposed to be covered by a water body in an observation area is continuously covered by the water body, indicating that the risk of a flood disaster in the observation area is increased and an alarm should be given. According to the method, abnormities of the water body features are analyzed from multiple angles, an early warning of the risk of the flood disaster in the observation area is given according to abnormity analysis, and thus the problem of difficulty in pre-disaster monitoring early warning of the flood disaster is effectively solved.

The invention provides an overall automatic regulation device and method of a mine ventilation system. Various automatic adjustment and control air amount adjustment devices are combined optimally, a remote intelligent regulation server collects the ventilation condition of a whole mine and calculates the air demand amounts of all air using points, a feasible overall regulation scheme is worked out in good time, and all the automatic air amount adjustment devices are controlled and regulated through a communication network. As the various air amount adjustment devices are designed, the overall automatic regulation device is suitable for different mine environments. Therefore, under the condition of not affecting normal operation of production and conveying equipment, overall optimal regulation and control of the mine ventilation system are realized, and the mine can be supplied with wind during a normal period and a catastrophe period according to time and needs.

A selection circuit switches the output between a ancillary PWM signal NS_PWM and a primary PWM signal S_PWM in accordance with a power supply transition period or normal period. A ancillary signal generating circuit generates a gradually rising signal which is then amplified by a second driver circuit, so that a DC block capacitor is gradually charged and discharged. Thereby, the occurrence of noise due to an inrush current is prevented.

Fluid pressure of a first fluid chamber of a driving means, which acts as a back pressure, is monitored by a monitoring means when a core pin is driven by the driving means in an inserting direction before injection of a molten material into a cavity of a die arrangement. When the monitored fluid pressure of the first fluid chamber exhibits abnormal behavior that is different from normal behavior observed during a normal period, the monitoring means controls the driving means to stop the driving of the core pin in the inserting direction.

Systems and methods for black-starting a power system using a battery energy storage system can be provided. In one example implementation, a method includes obtaining, by the one or more controllers, a signal requesting a black-start of the power system using the battery energy storage system. The method further includes increasing, by one or more controllers, a system bus voltage to a nominal voltage level using the battery energy storage system for a start period according to a start ramp. The method further includes maintaining, by one or more controllers, the system bus voltage at about the nominal voltage level using the battery energy storage system during a normal period following the start period.

The invention discloses a stable anode-changing method at the late period of an aluminum electrobath. The anode is changed from 13th day after aluminum electrobath startup, in order to assure successive production as changing anode in normal period, a residual anode capable of producing for 18 days is used in 16th day and 19th day after aluminum electrobath startup; a residual anode capable of producing for 20 days is used in 22th day after aluminum electrobath startup; a residual anode capable of producing for 11 days is used in 25th after aluminum electrobath startup; a residual anode capable of producing for 11 days is used in 28th day after aluminum electrobath startup; and a residual anode capable of producing for 7 days is used in 32th day after aluminum electrobath startup. The invention has no anode changing after successive 12 days after aluminum electrobath startup, energy balance of the electrobath is not affected during this period, firm and structured furnace wall is formed, so that the electrobath has effects of stability, high efficiency and low consumption, thus improving the economic index of an enterprise.

A system for improved collection and containment of fluids such as oils that commonly drip from an aircraft during service maintenance operations and during normal periods of storage. The system comprises a ground-supported drip pan incorporating a peripheral cutout adapted to accommodate a landing wheel of the aircraft to permit effective positioning under the engine. An embodiment for exterior use utilizing the weight of the aircraft to prevent movement of the system is also disclosed.

An analog-to-digital conversion circuit includes: a clock generating circuit which generates a clock signal including a first initial period and plural normal periods following the first initial period, the first initial period being one of a high period and a low period and being a first period immediately after a reset release, each of the normal periods being one of a high period and a low period and shorter than the first initial period; and an incremental analog-to-digital converter which operates using the clock signal.

The invention discloses a body weight health management system and a method, wherein the system and the method relate to the field of body weight monitoring management. The system comprises a body weight evaluating module and a health management module. The body weight evaluating module comprises a data acquisition module, a data calculating module, a data standard database, a data analysis moduleand a data display module. The health management module comprises a nutrition intake calculating module and a motion heat consumption calculating module. The management method comprises the steps ofinputting basic information to a to-be-tested user, wherein the basic information comprises body weight and body height; calculating the BMI value of the to-be-tested user according to a formula BMI value=(body weight)/(body height)<2>; by means of the calculated BMI value and the basic information of the user, analyzing a fact that the body weight of the user is in a thin period, a normal period,an overweight period or a fat period; and generating an optimal body weight range and a body weight management suggestion. The method performs body weight management on the teenagers in the age period of 7-18, and furthermore can supply an energy consumption value list of different movements and the daily nutrition requirement amount recommended values for aiming at the evaluation result, therebytruly realizing body weight health management.