34results about How to "Simple program structure" patented technology

The invention discloses a wet electrostatic precipitator rear segment spraying program control optimized water saving method. The water saving method comprises the steps that firstly, a wet electrostatic precipitator circulating water quality solid containing amount online monitor is additionally arranged, so that the water quality of wet electrostatic precipitator circulating water is ensured; secondly, by automatically reading the current unit load and the spraying duration and period set at the corresponding load, the rear segment spraying water opening duration is automatically increased or decreased; thirdly, by means of newly increased spraying water amount calculated every 30 minutes, the drained waste water amount is synchronously calculated and adjusted, and wet electrostatic precipitator water balance is achieved; and fourthly, on the premise that the wet electrostatic precipitator circulating water quality solid containing amount meets the requirement, the amount of fresh water consumed by a wet electrostatic precipitator is reduced as much as possible, the water amount of an absorption tower is synchronously reduced, and therefore it is guaranteed that a demister of the absorption tower carries out flushing according to requirements, longer flushing duration is provided, the demisting effect of the system demister is ensured, blockage is avoided, the industrial water consumption is reduced to the maximum extent, and the drainage frequency and the drainage waste water amount of the absorption tower are synchronously reduced; and by means of the method, the wet electrostatic precipitator water consumption is reduced, and the method has a remarkable effect on economical and environmental-friendly running of a coal-fired unit.

The invention discloses a temperature control algorithm for a semiconductor temperature control device, and relates to the field of the temperature control. The temperature control algorithm comprisesa refrigeration system and a circulating system; the refrigeration system is used for controlling temperature, the circulating system is used for liquid circulation, so that the temperature control precision of the equipment is greatly improved, the no-load state is within + / -0.1 DEG C, and the loading state is within + / -1 DEG C, and the energy consumption of the equipment is obviously reduced; the heating quantity output is in a low range in the no-load and load states, the internal energy loss in the equipment is less, and the energy consumption is reduced; and the temperature control algorithm is compatible with different flows and simple in program structure. By being compatible with different flows, the energy consumption of the equipment is reduced, and the temperature control precision is further improved.

The invention discloses a sequential control method and a card reader, and belongs to the technical field of intelligent cards. The sequential control method comprises that: when the card reader detects a falling edge of a transmission signal, a sequential controller is started; when the sequential controller reaches a first preset control value, the level of the intelligent card is sampled to serve as a first bit position, and if the level is a low level, the data is continuously received, otherwise the data receiving is ended; when the sequential controller reaches a second control value toa ninth preset control value, the level is sampled in turn to serve as a second bit position to the ninth bit position in turn according to the agreed protocol and the bit positions are spliced into a data byte for saving; and when the sequential controller reaches a tenth preset control value, the level is sampled to serve as a tenth bit position, and the saved data byte is checked by using the tenth bit position according to the preset check mode. The card reader comprises a sequential control module, a sampling module, a judging module, a storage module and a check module. The sequential control method and the card reader realize more accurate sequential control.

Disclosed in the present invention are a method for automatically registering a bullet screen event in Android, a storage medium, a device and a system, relating to the field of Android development technology. The method comprises: firstly creating a self-defined registration mark on the basis of the existing annotation functions of an Android system; then creating a mark parser, the mark parser being used for searching for all bullet screen event methods which are marked by the registration mark; finally, after the bullet screen event methods which are required to be registered, are marked by the registration mark, parsing same by using the created mark parser in a compilation stage to obtain all the bullet screen event methods marked by the registration mark; and performing a registration operation on all the obtained bullet screen event methods. The present invention can improve the registration of a code segment, which requires manual operations of a developer in the prior art, by means of an automatic generation mode, not only simplifying the program structure for maintenance convenience, but also greatly improving development efficiency.

The invention discloses a white smoke prevention intelligent detection method for a wet desulphurization chimney. The method comprises the following specific steps: S1, by adding a detection instrument, collecting four signals of atmospheric temperature, atmospheric relative humidity, atmospheric wind power and wind direction in real time, and transmitting the signals to a control system; S2, taking the four signals of atmospheric temperature, atmospheric relative humidity, atmospheric wind power and wind direction as four variables to be introduced into a computational formula of actual chimney white smoke critical smoke temperature in the control system, and calculating to obtain actual chimney white smoke critical smoke temperature; S3, feeding back the calculated and obtained actual chimney white smoke critical smoke temperature to a waste heat recovery system by the control system, and regulating the smoke temperature inside the chimney according to the actual chimney white smokecritical smoke temperature to realize waste heat recovery maximization and thermal pollution minimization. The method disclosed by the invention is easy to realize, thermal energy can be recycled greatly, the coal consumption is saved, and the ultra-low emission operating economy, reliability and environmental protection of a coal-fired unit can be improved obviously.

The invention relates to the technical field of an industrial control system and particularly relates to a control program organization structure of the control system and a download method. The control system comprises a controller and configuration software, wherein the controller is internally provided with an operation management core in a solidification mode, a background system of the configuration software is stored with a program module database, the program module database is stored in the configuration software in an encrypted linkable file mode, the foreground of the configuration software realizes programming and download of user configuration programs carried out by users, the operation management core, the program module database, the user configuration programs and data sets form a control program, and communication and interaction of the control program between the controller and the configuration software is carried out through a download interface. The control system is advantaged in that the control program module database is stored in the background of the configuration software, control program modules actually utilized by the configuration program are downloaded to store in the controller only after download, not only can the program structure of the controller is simplified, program scheduling and management are made to realize more rapid and reliable, but also storage resource pressure of the controller is further reduced.

The invention discloses a data communication method and its method and system for dual-redundancy motor measurement and control. The data communication method comprises steps: 1. communication protocol setting; The motor measurement and control method includes steps: 1. communication protocol setting, 2. data collection and transmission, 3. data receiving and processing; its dual-redundancy motor measurement and control system includes a DSP digital processor module and a power circuit module, and a DSP digital processor. The module is connected with reset circuit, storage expansion circuit and RS422 / RS485 communication circuit; the input terminal of DSP digital processor module is connected with current detection circuit, voltage detection circuit, temperature detection circuit and RVDT solving circuit. The invention can stably, safely and reliably realize the coordinated control between the double-redundancy servo motors, and the data communication between the LabVIEW of the upper computer and the DSP digital processor module of the lower computer, and is convenient for popularization and use.

The invention discloses an intelligent data acquisition device with a solidified protocol. The device comprises a main processor for converting the control power of a bus. The main processor is respectively connected with a memory chip, a meter protocol card for collecting and analyzing data after receiving the control power of the bus and at least one communication interface circuit. Due to the fact that the meter protocol card instead of the processor is employed to collect and analyze data, the communication protocol provided by the invention is matched with the communication protocol of an intelligent instrument by changing the meter protocol card to carry out data collection and analysis on the intelligent instrument. In addition, the meter protocol card is employed to collect and analyze data, so that the process of data collection and analysis is independent from the main processor, the program structure of the main processor is simplified, the burden of the main processor is reduced, debug is more easily to be carried out, and the stability and the reliability is greatly enhanced. The intelligent data acquisition device with the solidified protocol provided by the invention is widely applied in a centralized meter reading system.

The invention relates to a PWM overmodulation method based on an optimized quasi sine flat modulating wave. The method is characterized in that firstly, one quasi sine flat wave is established to serve as the modulating wave, a triangular carrier wave is modulated, and then a three-phase PWM overmodulation algorithm is adopted for overmodulation. According to the method, three-phase PWM is generated by adopting the triangular carrier wave, the largest output linear voltage fundamental wave amplitude value of the three-phase PWM in a linear area is 19% higher than that of SPWM, and therefore the direct-current voltage use ratio is remarkably improved.