30results about How to "Reduce Control Risk" patented technology

The invention discloses a control method and system for primary frequency modulation of a thermal power generation unit. The method comprises steps as follows: frequency modulation capability parameters of a steam turbine control valve are acquired; according to the frequency modulation capability parameters of the steam turbine control valve, a control valve frequency modulation threshold value of the power generation unit in a frequency modulation range of plus-minus 11 r/min is acquired; whether grid frequency exceeds the control valve frequency modulation threshold value under current working conditions is judged; if the grid frequency exceeds the control valve frequency modulation threshold value, primary frequency modulation is performed in a mixed frequency modulation manner for controlling the opening degree of the steam turbine control valve and controlling the opening degree of a feed-water bypass; and if the grid frequency does not exceed the control valve frequency modulation threshold value, primary frequency modulation is performed in a control valve frequency modulation manner for controlling the opening degree of the steam turbine control valve. The opening degree of the feed-water bypass and the opening degree of the steam turbine control valve are controlled for simultaneous operation, the requirement for primary frequency modulation of the unit is met, the frequency modulation manners are selected according to actual conditions, the opening degree of the steam turbine control valve is involved in both manners, the requirement for the rapid response to primary frequency modulation can be met, and the problem that primary frequency modulation responding capability is reduced due to restrictions of boundary conditions in the condensation water throttling frequency modulation process is solved.

The invention relates to a facial recognition-based secure printing audition system. The facial recognition-based secure printing audition system is connected with an identity authentication terminal, a printing audition server, a printer and a terminal computer through an Ethernet framework, and comprises an identity authentication module, a printing operation control module and a printing behavior audition module. The facial recognition-based secure printing audition system is used for decreasing the risk and threat caused by the operation of carrying out printing output by illegal users which pretends to be legal users in the sensitive carrier production process, realizing the printing identity authentication and behavior audition in a real-name system at a price as small as possible, decreasing the chances of unauthorized sensitive data output leakage of malicious users and tracing the faces of the real printing output personnel and the panorama photos of the operators, so as to ensure the security of the sensitive information and the reliable audition of the information.

The invention discloses a distributed traffic signal lamp control system, comprising a master controller, a plurality of groups of signal lamps, and a plurality of slave controllers, wherein each slave controller is composed of a data receiving unit, an MCU processor and output control end; the data receiving unit is used for communicating with the master controller in a one-way manner and receiving the signals from the master controller; the MCU processor is used for receiving the data afferent from the data receiving unit, computing according to the preset program and sending an order to the output control end; and the output control end is used for receiving the order from the MCU processor and sending the order to the signal lamps or synchronized slave controllers to control the working state of the signal lamp group or realize data communication among synchronized slave controllers. The invention uses network cable transmission to control signals both in the master controller and the slave controllers, thus reducing the usage amount of cables, lowering material cost, needing no large-scale road breaking when pipelines are not pre-buried and lowering construction cost.

The embodiment of the invention discloses a public safety and sanitation intelligent rapid inspection system. The system comprises public safety and sanitation intelligent rapid inspection passing equipment and an intelligent rapid inspection supervision platform. The passage equipment is used for performing passage personnel security check detection in a networking state, acquiring passage personnel photos, certificate photos, certificate information, temperature measurement information, nuclear radiation detection information and passage state information in real time to form a complete communication record, and sending the complete communication record to the supervision platform for storage; and in a network disconnection state, single-machine operation can be realized. By implementingthe system, the one-stop operation of human body infrared temperature measurement, security check detection, nuclear radiation detection, human body high-temperature early warning, identity information acquisition, face information comparison, person and certificate information analysis, two-dimensional code acquisition and verification and key passing personnel early warning can be completed bypassing personnel in a'non-inductive' state when passing equipment is in a networked state and an off-network state; and the management and control of the passing personnel are effectively enhanced.

The invention provides a cross-regional connection method and device for SDN controllers and forwarding equipment. The method includes: obtaining region information of all SDC controllers and all forwarding equipment in multiple regions, wherein all the SDC controllers include this equipment; determining target forwarding equipment matched with this equipment according to the region information; and establishing a connection with the target forwarding equipment. The technical scheme of the cross-regional connection method can configure the region information for the SDC controller and the forwarding equipment respectively, enabling the SDN controllers to determine the target forwarding equipment matched with this equipment according to the region information, avoiding occurrence of a situation of cross-regional control, reducing control risks, and thereby enhancing stability of a system.

According to a tobacco alcoholization device provided by the invention, the tobacco alcoholization quality is remarkably improved through the double circulation of temperature and humidity air circulation and tobacco material circulation, and the tobacco alcoholization quality is observably improved. The device comprises an alcoholization chamber, at least two first conveyors which are arranged ina layered mode from top to bottom are arranged in the alcoholization chamber, and material elevators are arranged on sides of the first conveyors so as to elevate and convey tobacco materials locatedon the first conveyor on the lower layer to the first conveyor on the upper layer; and the device also comprises temperature and humidity air circulating equipment used for providing a temperature and humidity air environment for the alcoholization chamber. According to the tobacco alcoholization device, the tobacco materials are alcoholized in the dynamic conveying process, so that the tobacco materials make full and uniform contact with the alcoholizing environment provided by warm and wet air, the uniformity of the temperature, humidity and oxygen content of the tobacco materials is remarkably improved, and the alcoholizing efficiency and quality are improved.

The invention relates to the technical field of communication circuits and discloses an optical communication circuit of functional modules and controllers in a DCS (data transmission system) control system. The optical communication circuit is used for realizing data exchange between a first CPU (central processing unit) IC1 and a second CPU chip IC4. The optical communication circuit comprises a first transceiver IC2 and a second transceiver IC3 which are identical in structure, each of the first transceiver IC2 and the second transceiver IC3 comprises a signal receiving circuit, a signal sending circuit and a logic controller connected with the signal receiving circuit and the signal sending circuit. By adding an optical transceiving circuit, plug-in-free data transmission between functional modules, between the functional modules and the controllers and between the controllers are realized, quality of communication is guaranteed, electromagnetic interference is eliminated, service life is prolonged, communication speed is increased, hot plugging and unplugging of a communication module is achieved, operation quality of the DCS control system is guaranteed effectively, and risks in controlling is greatly lowered.

The invention discloses a household management robot system which is composed of a control terminal, a communication network, a transceiver, a general controller, an external controller, mechanical loading and controlled equipment, and an intelligent household management method applied to the above system. Thus, multiple kinds of controlled equipment can be remotely controlled by using normalized hardware, execution conditions by the controlled equipment on control instructions can be judged remotely through state data of the controlled equipment, a camera as one kind of controlled equipment is particularly used for intuitively and accurately acquiring the operation state of another kind of controlled equipment after the control instruction is executed, remote control risks are reduced, and remote control is realized for non-networked traditional household appliance equipment.

The invention discloses a rotational reserve optimization method employing risk stepwise polymerization scene. The rotational reserve optimization method comprises the steps of firstly, optimizing selected reserve measure combination of a previous iterative step, calculating sum of remaining risks of each scene under all scene sets, ending rotational reserve measure (reserve measure RM) optimization selection under the scene sets if the sum of the remaining risks under all scene sets is smaller than the set total remaining risk threshold, otherwise, setting scene sub-sets with remaining risk exceeding a single scene remaining risk threshold under all scene sets to be a scene set to be polymerized; clustering a single scene according to scene probability distance, adding the single scene toa scene set to be optimized, and allocating the scene probability in the scene set to be optimized again; and finally, optimizing RM selection by many steps according to cost performance ratio. The rotational reserve optimization method is high in calculation effect and good in optimization effect, and the calculation efficiency and the total control risk can be coordinated very well.

The invention relates to a small-space guardrail hot galvanizing device, and belongs to the field of automatic galvanizing. The small-space guardrail hot galvanizing device comprises a zinc pot and a main machine, wherein the main machine comprises a main machine frame; two lifting hooks are arranged at the two ends of the bottom of the main machine frame; a main shaft is hung on the two lifting hooks; a plurality of disc chucks are arranged on the main shaft; the main shaft can rotate on the lifting hooks; the disc chucks are matched with a charging basket in a rotating mode so that a guardrail plate can be transferred from one side of the zinc pot to the other side of the zinc pot; a gear pair is arranged on one side of the main machine frame; a driving motor is arranged at one end of the upper portion of the main machine frame; the driving motor drives the main shaft to rotate through the gear pair; a linkage mechanism is arranged on the main machine frame and comprises a driving air cylinder and a pressing-down and lifting linkage device; a pressing-down device and a lifting device are arranged on the pressing-down and lifting linkage device; the pressing-down device is arranged on the rear side of the main machine frame; the lifting device is arranged on the front side of the main machine frame; the driving air cylinder drives the pressing-down device and the lifting device to ascend and descend through the pressing-down and lifting linkage device; and the lifting direction of the pressing-down device is opposite to that of the lifting device.

The embodiment of the invention provides a ship supervision method, and the method comprises the steps: obtaining to-be-recognized image information through the construction and training of a ship recognition model, extracting the form information of a ship from the to-be-recognized image information through the ship recognition model, calculating the load state data of the ship through the form information of the ship, and supervising the ship based on the load state data of the ship, including identifying a risk ship. By extracting the form information of the ship, the load state data of the ship is further calculated, automatic risk identification is performed from the dimension of the load state, the management and control effect is improved, and management and control risk is reduced.

The invention relates to the field of hardware compatibility, in particular to an EEPROM-based equipment compatibility device and method. The device comprises a storage module, a control module and a transmission interface. The compatible device is used for carrying out operating system compatibility on each device, so that the problem that an operating system is incompatible when a hardware scheme is updated is avoided; and meanwhile, when the equipment accessories are insufficient in supply after sale, substitute materials can be flexibly selected for replacement, so that the operation cost and the device management and control risk are reduced, the related costs of manpower, working hours, materials and the like are correspondingly reduced, and the production benefits are improved.

The invention discloses an electrical control device for a library door and a control method thereof. The electrical control device for the library door comprises a first driving power supply input end, a second driving power supply input end, a direct current power supply input end, a first power supply switching circuit, a first control circuit, a second power supply switching circuit and a second control circuit, the first control circuit comprises a first switch circuit and a second switch circuit, the first power supply switching circuit is used for switching and supplying a direct-current power supply input by the direction current power supply input end for the first switch circuit and the second switch circuit, and controlling the conduction of the first switch circuit or the second switch circuit, the second control circuit comprises a third switch circuit and a fourth switch circuit, the second power supply switching circuit is use for switching and supplying the direct-current power supply input by the direct current power supply input end for the third switch circuit and the fourth switch circuit, and controlling the conduction of the third switch circuit and the fourthswitch circuit. According to the electrical control device for the library door, the redundancy of a system is improved, and the control risk is lowered.