37results about How to "Enable centralized control" patented technology

The invention discloses a sewage treatment foundation technology of the pulping and papermaking industry. The sewage treatment foundation technology comprises the steps of front auxiliary, a first-stage sewage treatment core technology, middle auxiliary, second-stage sewage treatment core technology and rear auxiliary; in the whole technology process, controlling is performed on the basis of pH values of a water body at all technological points, and various parameters can be set according to the requirements of feed water and yielding water indexes. According to the sewage treatment foundation technology of the pulping and papermaking industry, it can be guaranteed that an ion fractionation medicament has the following representative characteristics and advantages in practical application that the dosage is little (10-300 g per ton of water), the medicaments are directly dosed in a solid state without needing to be diluted, sewage is treated in real time without storage (the reaction time is 3-15 minutes), and the removing rate of water body contents is more than 80%; in addition, the national various sewage treatment discharge indexes are followed and met, treated water is colorless and free of abnormal odor and secondary harmful chemical substances, and sludge generated through flocculation is low in water content (smaller than 35%), odorless, not sticky and the like.

The invention discloses a heavy metal industrial sewage treatment fundamental process which comprises a primary sewage treatment core process, an intermediate assistance process and a secondary sewage treatment core process. The whole technological process is controlled based on pH values of water bodies at all process points, and all parameters can be set according to the requirements for water inlet and outlet indexes. The heavy metal industrial sewage treatment fundamental process can fully guarantee the following representative characteristics and advantages of ion fractionation medicaments of an applicant to practical application: the amount of administration is small (10-300 grams per ton of water), the medicaments are directly administrated in a solid state without being diluted, sewage can be treated in real time without being stored temporarily (the reaction speed ranges from 3 minutes to 15 minutes), the removal rate of contents in the water bodies is as high as 80% or above, various national sewage treatment discharge indexes can be reached, treated water is free of color, extraneous odor and secondary harmful chemical substances, the water content of sludge produced due to flocculation is low (<35%), and the sludge is free of odor and stickiness.

The invention relates to a wide-range input non-isolated three-port DC-DC converter which is characterized in that the wide-range input non-isolated three-port DC-DC converter is composed of a four-switch Buck-Boost converter, a photovoltaic cell, a storage battery, three ports of a DC bus and a Boost converter, a four-switch Buck-Boost circuit is used for connecting the photovoltaic cell, the storage battery and a load, and a Boost circuit is used for connecting the photovoltaic cell and the load; a positive electrode of a photovoltaic cell in the four-switch Buck-Boost circuit is connected to a positive electrode of a diode VD1, the diode VD1 is connected with a diode VD2, the diode VD2 is connected with a switch tube S1, and three branches are led out from a source electrode of the switch tube S1. A port of the photovoltaic cell and a port of a storage battery are connected through the four-switch Buck-Boost circuit. The method can be applied to a scene in which the photovoltaic cell voltage is greater than the storage battery voltage, and also can be applied to a scene in which the photovoltaic cell voltage is less than the storage battery voltage.

The invention discloses a hybrid electric vehicle power supply system based on a three-port DC / DC converter, and belongs to the technical field of electric vehicle power supply. According to the system, the problems that the power battery of the fuel cell hybrid electric vehicle cannot be charged and is poor in discharging capacity in a low-temperature environment are solved. The system comprises a three-port DC / DC converter, a power battery, a battery heating film, a fuel battery Uin and a converter control circuit, three ports of the three-port DC / DC converter are respectively connected with the power supply end of the battery heating film, the power supply end of the fuel battery and the power supply end of the driving motor controller; the converter control circuit is used for controlling the switching of a switching tube in the three-port DC / DC converter, so that the three-port DC / DC converter is in different working modes; the battery heating film is arranged on the outer side of the power battery and is used for heating the power battery; the system is suitable for hybrid electric vehicle power supply.

The invention discloses six non-isolated three-port direct-current converters and a control method and circuit thereof. The converter is characterized in that a source electrode of a switch tube S1 isconnected with an anode of a diode D2, a cathode of the D2 is connected with a source electrode of a switch tube S2 and one end of an energy storage inductor L, and a drain electrode of the S2 is connected with a cathode of a diode D1. The control method comprises steps that a sampling value and a reference value of an input voltage of the direct-current converter are compared with sawtooth wavesafter error amplification, and a driving signal is generated to control the S1; moreover, a sampling value and a reference value of a load voltage of the direct-current converter are compared with sawtooth waves after error amplification, and a driving signal is generated to control the S2. The control circuit is characterized in that output ends of two error amplifiers are connected with the input ends of two comparators respectively, sawtooth waves are further inputted into the two comparators, and output ends of the two comparators are used for being connected with a grid electrode of theS1 and a grid electrode of the S2 respectively. The converters and the control method and circuit thereof are advantaged in that that power management and control among an input source, energy storageequipment and a load can be realized by adopting a single converter.

The invention discloses six three-port direct-current converters and a control method and circuit thereof. The converter is characterized in that a drain electrode of a switch tube S1 is connected with a cathode of a diode D2, a source electrode of the switch tube S1 is connected with a cathode of a diode D1 and one end of an energy storage inductor L, and an anode of the diode D1 is connected with a source electrode of a switch tube S2. The control method comprises steps that a sampling value and a reference value of an input voltage of the direct-current converter are compared with sawtoothwaves after error amplification, and a driving signal is generated to control the S1; a sampling value and a reference value of the load voltage of the direct-current converter are compared with the sawtooth waves after error amplification, and a driving signal is generated to control the S2. The control circuit is characterized in that output ends of two error amplifiers are connected with inputends of two comparators respectively, the sawtooth waves are further inputted into two comparators, and output ends of the two comparators are used for being connected with a grid electrode of the S1and a grid electrode of the S2 respectively. The converters and the control method and circuit thereof are advantaged in that the power management and control among an input source, energy storage equipment and the load can be realized by adopting a single converter.

The invention discloses a method and a device for achieving multi-pipe data transmission in an embedded system. The multi-pipe data transmission is achieved by creating a dynamic channel between entities in a host computer network; and a corresponding transmission buffer zone is arranged for each pipe. Thus, the situation the pipes may cross is avoided; a data transmission error between the entities is reduced, and the reliability of data transmission is improved. The dynamic pipe can be dynamically created and deleted, so that long-term occupation of management resources is avoided; and the resources of the host computer are saved. In addition, by adopting the technical scheme provided by the invention, centralized control also can be achieved; a network topology is supported, and the device is simple in facility, convenient to deploy, suitable for various application scenes, strong in error handling capacity and compatible with various hardware platforms, and supports a plurality of data carriers at the bottom layer.

The invention discloses six two-switch three-port DC converters and their control methods and circuits. One of them, switch tube S 1 The source is connected to the switch S 2 the drain, S 2 The source is connected to the diode D 2 The cathode and one end of the energy storage inductor L, D 2 The anode of the diode is connected to D 1 of the cathode. The control method is that the sampling value and reference value of the input voltage of the DC converter are amplified by the error and then compared with the sawtooth wave to generate a driving signal to control the S 1 ; At the same time, the sampling value and reference value of the load voltage of the DC converter are amplified by the error and then compared with the sawtooth wave to generate a driving signal to control S 2 . The control circuit is that the output terminals of the two error amplifiers are respectively connected to the input terminals of the two comparators, and the two comparators also input the sawtooth wave, and the output terminals of the two comparators are respectively used to connect the S 1 and S 2 the grid. The beneficial effect of the invention is that the power management and control between the input source, the energy storage device and the load can be realized by using a single converter.

The invention discloses a basic sewage treatment process of the mining selecting industry. The basic sewage treatment process comprises a core sewage treatment process and postposition auxiliary steps, in the whole technological process, control is conducted based on pH values of water of all technological points, and setting of all parameters can be conducted according to the requirements of inlet water indexes and outlet water indexes. By means of the basic sewage treatment process, the following representative characteristics and advantages of ion separation medicament of the applicant in actual application can be guaranteed, wherein quantity of reagent is little (the quantity is 10-300 g per ton of water), direct solid drug delivery is conducted, dilution is not needed, sewage water is treated in real time, buffering is not needed, the reaction time is 3-15 minutes, the removal rate of substances contained in water is as high as over 80%, various sewage treatment and discharging indexes of the nation can be met, water obtained after treatment is colorless, odorless, and free of secondary harmful chemical matter, and the sludge generated through flocculation is low in water content(less than 35%), free of foul smell, free of adhesion and the like.

The invention discloses a desulfurization wastewater treatment fundamental technology. The desulfurization wastewater treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameter are set according to requirements of water inflow and outflow indexes. According to the desulfurization wastewater treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that the quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, treated water is colorless, odorless and free of secondary harmful chemicals, and the sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

The invention discloses a coal chemical industry wastewater treatment fundamental technology. The coal chemical industry wastewater treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameters are set according to requirements of water inflow and outflow indexes. According to the coal chemical industry wastewater treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, and treated water is colorless, odorless and free of secondary harmful chemicals, and sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

The invention discloses a domestic wastewater treatment fundamental technology. The domestic wastewater treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameters are set according to requirements of water inflow and outflow indexes. According to the domestic wastewater treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that the quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, treated water is colorless, odorless and free of secondary harmful chemicals, and sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

The invention discloses a fundamental technology for landfill leachate treatment. The fundamental technology for landfill leachate treatment comprises the steps of pre-stage assisting, a primary sewage treatment core process, middle-stage assisting, a secondary sewage treatment core process and post-stage assisting, the whole technological process is controlled based on the pH values of water bodies at process points, and various parameters can be set according to the requirements of water inlet and outlet indexes. The fundamental technology can fully guarantee the representative features and advantages of an ion separation agent of an applicant in practical application as following: the dosage is few (10-300 grams for per ton of water), dilution is not needed for direct solid feeding, sewage is treated in real time without temporary storage (the response speed is 3-15 minutes), the water content removal rate is above 80%, the fundamental technology can be in line with and meet various national sewage treatment and discharge indexes, treated water is colorless, odorless, free of secondary harmful chemical substances and flocculation, and produced sludge is low in moisture content (< 35%), free of foul smell, non-sticky and the like.

The invention discloses a sludge dewatering and concentration treatment fundamental technology. The sludge dewatering and concentration treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameters are set according to requirements of water inflow and outflow indexes. According to the sludge dewatering and concentration treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that the quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, treated water is colorless, odorless and free of secondary harmful chemicals, and sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

The invention discloses a fundamental technology for landfill leachate treatment. The fundamental technology for landfill leachate treatment comprises the steps of pre-stage assisting, a primary sewage treatment core process, middle-stage assisting, a secondary sewage treatment core process and post-stage assisting, the whole technological process is controlled based on the pH values of water bodies at process points, and various parameters can be set according to the requirements of water inlet and outlet indexes. The fundamental technology can fully guarantee the representative features and advantages of an ion separation agent of an applicant in practical application as following: the dosage is few (10-300 grams for per ton of water), dilution is not needed for direct solid feeding, sewage is treated in real time without temporary storage (the response speed is 3-15 minutes), the water content removal rate is above 80%, the fundamental technology can be in line with and meet various national sewage treatment and discharge indexes, treated water is colorless, odorless, free of secondary harmful chemical substances and flocculation, and produced sludge is low in moisture content (< 35%), free of foul smell, non-sticky and the like.

The invention discloses a heavy metal industrial sewage treatment fundamental process which comprises a primary sewage treatment core process, an intermediate assistance process and a secondary sewage treatment core process. The whole technological process is controlled based on pH values of water bodies at all process points, and all parameters can be set according to the requirements for water inlet and outlet indexes. The heavy metal industrial sewage treatment fundamental process can fully guarantee the following representative characteristics and advantages of ion fractionation medicaments of an applicant to practical application: the amount of administration is small (10-300 grams per ton of water), the medicaments are directly administrated in a solid state without being diluted, sewage can be treated in real time without being stored temporarily (the reaction speed ranges from 3 minutes to 15 minutes), the removal rate of contents in the water bodies is as high as 80% or above, various national sewage treatment discharge indexes can be reached, treated water is free of color, extraneous odor and secondary harmful chemical substances, the water content of sludge produced due to flocculation is low (<35%), and the sludge is free of odor and stickiness.

The invention discloses a sewage treatment foundation technology of the pulping and papermaking industry. The sewage treatment foundation technology comprises the steps of front auxiliary, a first-stage sewage treatment core technology, middle auxiliary, second-stage sewage treatment core technology and rear auxiliary; in the whole technology process, controlling is performed on the basis of pH values of a water body at all technological points, and various parameters can be set according to the requirements of feed water and yielding water indexes. According to the sewage treatment foundation technology of the pulping and papermaking industry, it can be guaranteed that an ion fractionation medicament has the following representative characteristics and advantages in practical application that the dosage is little (10-300 g per ton of water), the medicaments are directly dosed in a solid state without needing to be diluted, sewage is treated in real time without storage (the reaction time is 3-15 minutes), and the removing rate of water body contents is more than 80%; in addition, the national various sewage treatment discharge indexes are followed and met, treated water is colorless and free of abnormal odor and secondary harmful chemical substances, and sludge generated through flocculation is low in water content (smaller than 35%), odorless, not sticky and the like.

The invention relates to an electric transmission device of an electric wheel mining truck, which belongs to the technical field of power transmission of mining trucks. The electric transmission device of the electric wheel mining truck comprises an accelerator pedal, a brake pedal, a gear position handle, a controller, an engine, an alternating current generator, a rectifier, a frequency converter I, a frequency converter II, a radiating fan, a resistance grid I, a resistance grid II, an electric braking converter I, an electric braking converter II, a speed sensor, a mechanical brake, alternating current motors, a wheel-side speed reducer, a left wheel pair and a right wheel pair. The electric transmission device has the beneficial effects that the device follows the principle of giving priority to brake, the left wheel pair and the right wheel pair are driven by the independent alternating current motors, each alternating current motor is controlled by the independent frequency converter, and the controller can compare the driving powers of the left wheel pair and the right wheel pair to the alternating current motors, realize the balanced driving force of the left wheel pair and the right wheel pair and prevent the deviation of the mining truck; secondly, a mechanical system does not exist between the left wheel pair and the right wheel pair for directly connecting the left wheel pair with the right wheel pair, the left wheel pair and the right wheel pair are kept independent mutually, and the different rotational speeds of the left wheel pair and the right wheel pair are allowed during the turning process, thereby realizing flexible differential speed.

The invention discloses a sewage treatment core process. The sewage treatment core process comprises four conventional basic links including regulation, reaction, flocculation as well as filtration and sedimentation. In the whole process, control is performed on the basis of pH values of water bodies at process points, and various parameters can be set according to requirements of water inlet and outlet indexes. Following representative characteristics and advantages of an ion separation chemical of an applicant in actual application can be guaranteed sufficiently: the chemical feeding amount is small, 10-300 g of the chemical is fed per ton of water, solid-state chemical is fed directly without dilution, sewage is treated in real time without caching (the reaction speed is 3-15 min), the water body content removal rate is higher than 80%, various national sewage treatment emission indexes can be obeyed and met, water after treatment is colorless and free of off-smell and secondary hazardous chemical substances, and sludge produced through flocculation has low water content (smaller than 35%), is free of stink, is not adhesive and the like.