61results about "Programme control in sequence/logic controllers" patented technology

The invention discloses a multi-control end unmanned aerial vehicle as well as consoles and a control switching method thereof, belonging to the field of unmanned aerial vehicles. The unmanned aerial vehicle comprises a first transmitter, a first receiver, a flight control panel, at least two consoles and a communication monitor for detecting the communication state between the unmanned aerial vehicle and the consoles in real time, wherein the first receiver is electrically connected with the flight control panel and the communication monitor respectively; and the first receiver selectively receives a flight control instruction sent by the console meeting the preset condition according to the communication state and inputs the flight control instruction to the flight console. According to the invention, the flight control right of the unmanned aerial vehicle can be switched and transferred to another authorized console (such as an alternate console or a relay console) arranged in advance, so that even if the console coupled with the unmanned aerial vehicle currently has a fault, the control on the unmanned aerial vehicle can be effectively ensured; and on the other hand, the flight movement range of the unmanned aerial vehicle can also be enlarged through the relay control of the flight control right.

The invention relates to a ground electrode circuit grounding protective system of a high-voltage DC transmission system. The system is provided with two parallel ground electrode circuits respectively connected in series with a high-voltage DC breaker, sets an allowable range of current differences of two ground wires and an allowable range of the subtraction of the line current sum of the two ground wires from the line current difference of the two ground wires and then sequentially executes the following control program: (1), reading currents of the two ground wires; (2), judging and comparing whether an absolute value of the current difference of two ground wires is larger than the allowable range thereof, if the absolute value is not larger than the allowable range, returning to the step (1); if the absolute value is larger than the allowable range, (3) then, judging whether the subtraction of the line current sum of the two ground wires from the line current difference of the two ground wires is smaller than or equal to the allowable range; if the subtraction is smaller than or equal to the allowable range, returning to the step (1); and if the subtraction is not smaller than or equal to the allowable range, enabling the high-voltage DC breaker which is connected in series with the ground wire with larger line current to trip and terminate the program. The system can avoid the imbalance of the ground electrode circuits due to the failures of the ground electrode circuits and protects the caused DC transmission system to be closed down.

A taught position modification device easily correcting, in a short time, positions of taught points in a program prepared by an offline programming system. A workpiece image captured by a visual sensor and an image of a three-dimensional workpiece model having three characteristic points are displayed on a screen. Based on coordinate values of workpiece portions corresponding to the characteristic points which are specified in the workpiece image, the position and orientation of the model in a robot operating space are corrected, and also positions of taught points are corrected. When a tool end of a robot is positioned by jog feed to the operation position on a workpiece after being automatically moved to one of the corrected taught points, the taught point is modified based on the robot operating position detected at that time.

The invention relates to a cooking method and system based on a cooking model, and the system comprises an electric heating cooking appliance. The electric heating cooking appliance is provided with a central controller. The electric heating cooking appliance is at least correlated with a control step of main variable parameters. The main variable parameters comprise the identity characteristics of a main food material, the amount of the main food material and a cooking personalized target. The cooking personalized target comprises the type of a food which a user wants to get and/or the personalized demand content of taste. The system obtains the main variable parameters through a man-machine interaction interface, and generates a specific dynamic cooking model according to the main variable parameters. The dynamic cooking model also comprises the control steps of a cooking pressure, cooking power, cooking temperature or cooking time, which are all configured to be corresponding to the main variable parameters. A central controller carries out the cooking control of the electric heating cooking appliance according to the steps determined by the dynamic cooking model. Therefore, the personalized demand of a user is taken as the center for setting a control program and steps, thereby achieving the active dynamic intelligentization.

The invention provides an electromobile and a remote program update control method thereof. The electromobile comprises a vehicle-mounted data terminal, a processor and a complete vehicle controller, and the complete vehicle controller communicates with the vehicle-mounted data terminal and the processor. The vehicle-mounted data terminal sends a flashing request to the complete vehicle controller, and carries out program flashing after receiving a flashing allowing instruction from the complete vehicle controller; the processor determines whether flashing is allowed according to an instruction input by a user; and the complete vehicle controller determines whether the processor allows flashing after receiving the flashing request, further determines whether a present vehicle state satisfies a preset requirement when flashing is allowed, and sends the flashing allowing instruction to the vehicle-mounted data terminal and enters a flashing preparing mode when the present vehicle state satisfies the preset requirement. According to the invention, remote program flashing of the electromobile is realized, the workload and work cost of program upgrade are reduced, and the working period is shortened.

The invention provides an internet-of-things operation and maintenance monitoring box for multi-channel video monitoring integration. The internet-of-things operation and maintenance monitoring box comprises a door magnetic sensor, a lightning protection device, an automatic reclosing module, a data acquisition and remote control module, a network communication module, a power management module, atemperature and humidity sensor, an illumination sensor and an authentication module. The modular layout is adopted, versatility is kept, diversified configurations are provided to adapt to differentapplication scenes, and function expansibility is achieved; the Internet of Things communication technology is adopted, a series of sensors are combined, state detection of the monitoring box is achieved, the state and fault data of the monitoring box are uploaded to an operation and maintenance center in real time, and multiple remote control functions such as fan starting and stopping, camera remote restarting, heating resistor starting and stopping, remote power on and off and network restarting are supported. The operation and maintenance center realizes standard management for each operation and maintenance monitoring box, guarantees equipment safety, realizes effective authentication verification for remote and field operation of the monitoring boxes, and has an effective tracing mechanism for maintenance of the monitoring boxes.

The invention relates to a statistical principle and programmable logic controller (PLC) technology-based method for measuring and calculating discharge amount of a tobacco shred storage cabinet. The method comprises the following steps of: 1) acquiring a plurality of groups of field bottom belt running experimental data to acquire multiple groups of data of bottom belt frequency converter running frequency and bottom belt running speed, and obtaining an equation f(x)=ax+b based on statistical regressive analysis; 2) performing definite integration on the f(x) by using a PLC cyclic interrupt function block so as to obtain the running length of the bottom belt after multiple times of start and stop; 3) calculating the discharge amount of the shred storage cabinet through a function block (FB) in the PLC by using a formula 'shred storage cabinet discharge amount = bottom belt discharge length * cabinet feeding quantity/distribution length during feeding the cabinet'; and 4) performing high and low speed conversion of stub bar/tail during discharging of the shred storage cabinet in the FB of the PLC by using the real-time discharge length of the bottom belt, performing tail stop and starting related control in advance in the next cabinet. Any hardware detection equipment of the storage cabinet is not needed, many disadvantages and measurement errors caused by detection elements are solved, the accuracy of a system is improved, and the cost is reduced.

The invention relates to the field of mechanical part detection, in particular to a part quality defect detector and a method for detection with the part quality defect detector. According to the part quality defect detector and the method for detection with the part quality defect detector, running of stepping motors is controlled by a PLC control system, a laser sensor on the detector is driven to scan parts, data are transmitted to the PLC control system, the collected data are transmitted to a computer, the computer conducts error contrastive analysis on the scanned data and the data of standard parts in a computer database, and the unqualified parts are detected. According to the part quality defect detector and the method for detection with the part quality defect detector, the structure is simple, use is convenient, the cost is low, the degree of automation is high, the defective parts can be detected without contact with the machine parts, and great convenience is brought.

Embodiments of the present invention provide an optical disk library switch control apparatus, method, and device, and an optical disk data center. The optical disk library switch control apparatus comprises a logic control unit and one or more switch units. The logic control unit is communicatively connected with an access control unit in the data center, and according to a data access signal of the access control unit, a switch control logic signal for one or more optical disk libraries is generated; and one or more switch units are communicatively connected with the logic control unit, the one or more switch units are electrically connected between one or more optical disk libraries and the power supply, and the one or more switch units are turned on or off according to the switch control logic signal, so that the optical disk library is connected or disconnected with the power supply. According to the embodiments of the present invention, power consumption of the cold data related equipment in the optical disk data center is controlled in a power on demand manner, the energy consumption is reduced, and the cost is saved, so that the optical disk data center can be flexibly configured and expanded.

The invention relates to a method for executing a programmable logic controller (PLC) code. The hardware of a PLC comprises at least one high-performance Digital Signal Processing (DSP) and a RAM of a memory module. A software part comprises at least one main program applied to the DSP and a program translated DSP code of the PLC of a cycle ladder diagram. The invention translates a PLC program into the DSP code and executes the PLC code in the DSP. The PLC code is coated in the main program of the DSP so that the cycle scanning time of the PLC is not limited by the transmission speed of a communication interface, thereby the response ability of a system can be effectively improved.

The invention discloses a multi-state switch state collection device and method, and belongs to the technical field of multi-state switch state collection technologies. The invention solves the problems that in the prior art the states of the multi-state switch only can be obtained by changing a hardware circuit. The multi-state switch state collection device and method disclosed by the invention abandon the inherent thinking that the states of the multi-state switch only can be obtained by changing the hardware circuit during current state identification, but directly judge a multi-state switching value signal through the cooperation of the fixed circuit and hardware to obtain the states of the multi-state switch. When in actual application, the method provided by the invention can be implemented by software, in the prior art the hardware can perform online change by a CAN bus, so that the workload is reduced, and the process is simplified. Compared with changing the circuit, it is more convenient to modify the software program, and the accuracy during the collection process can be better ensured. The multi-state switch state collection device and method are applicable to diagnosing open circuit or short circuit, and also applicable to the various fields needing to collecting switch states.

The invention provides an intelligent front-end multimedia information acquisition system used for accurately monitoring power station equipment. The system comprises a plurality of groups of data acquisition devices arranged in a production area I. The data acquisition devices are connected with equipment systems in the production area I. The data acquisition devices are further connected with anintelligent front-end data server arranged in a production area II through a first one-way safety isolation device. The intelligent front-end data server is connected with a second one-way safety isolation device. The second one-way safety isolation device is connected with a cloud server arranged in a management information large area through a private network. The system does not perform the simple lossy compression on acquired real-time data, wherein the sampling frequency and the data compression are dynamically adjusted according to actual needs. Meanwhile, data acquired in real time arestored in a structured database, while data not acquired in real time are stored in a non-structured database. Moreover, the data acquired by the system has the advantages of accuracy, integrity andconsistency. The system is safe in data transmission and high in efficiency. The same coding rule is adopted, and the data application is more efficient, more convenient and more purposeful.

A virtual debugging system for intelligent manufacture is mainly composed of industrial control equipment, a PC client, a Redis database module and a simulation module, wherein the industrial controlequipment comprises an industrial robot system, a PLC, a CNC lathe and a machining center controller; the PC client comprises data acquisition module and an interactive interface module; the PC clientmakes each equipment driver into a plug-in based on the OSGI.NET plug-in framework, collects the signals and data of the industrial control equipment in real time, and storages the data in the Redisdatabase; the PLC and NC equipment perform signal interaction through the database; the simulation module reads the data in the database through the Python program to drive the robot and machine modelfor processing; at the same time, the status information of the model is also stored in the Redis database; and the PC client reads the status information of the model in the Redis database in real time and writes the same to the PLC, so that the conditions in the PLC are met to schedule the robot, CNC lathe and machining center to perform tasks to achieve the fusion of reality and reality, whichcan verify the feasibility of intelligent manufacture solutions.

The invention discloses a novel intelligent irrigation system. The novel intelligent irrigation system comprises a greenhouse body, a water tank is fixedly connected to the bottom of one side of the greenhouse body, a central control module located above the water tank is fixedly connected to one side of the greenhouse body, and transverse beams are fixedly connected to the inner wall of the greenhouse body; a fixation shelf located below the transverse beams is fixedly connected to the inner wall of the greenhouse body, backflow holes are formed in the fixation shelf, water flowing holes areformed in the top of the fixation shelf and communicated with the backflow holes, one ends of the backflow holes are fixedly connected with one side of the water tank through a connecting pipe, and guide grooves are formed in the tops of the transverse beams; motors are fixedly connected to one ends of the transverse beams, guide blocks are movably connected to the interiors of the guide grooves,and lead screws are fixedly connected to the power output ends of the motors, penetrate through the guide blocks, and are in threaded connection with the guide blocks. The novel intelligent irrigationsystem is reasonable in structure, automated irrigation in the greenhouse body is achieved, the manufacturing cost is low, and the system is suitable for application and popularization.

The invention provides a high voltage switch cabinet temperature monitoring system based on PLC (Programmable Logic Controller). The high voltage switch cabinet temperature monitoring system comprises the PLC, an optoelectronic isolation input circuit device, a relay, an executing mechanism, a high voltage switch cabinet, a contact temperature sensor, a conditioning circuit device, an optoelectronic isolation output circuit device, an on-site monitor, a communication device and a remote computer. The high voltage switch cabinet temperature monitoring system disclosed by the invention has the advantages as follows: 1. the wireless communication technology is used to perform remote data acquisition and monitoring, and the monitoring software is installed on industrial personal computers for remote monitoring and on-site monitoring, so as to bring convenience to users at different places to remotely monitor the temperature of the high voltage switch cabinet contact; 2. when the temperature is too high, the system can remotely send a command to implement effective measures, and the operation is in time and fast; 3. the system is provided with a friendly human-computer interface, so as to display audio-visual image directly, and ensure the system to be operated easily and conveniently.

The invention belongs to the technical field of testing moving parts such as a membrane and the like, and more particularly discloses a multifunctional membrane testing device which comprises a test bench component, an electric control cabinet component and a pneumatic component; wherein, the electric control cabinet component comprises a power supply, a programmable controller (PLC) connected with the power supply and two intermittent on-off selective control valves which are respectively and correspondingly connected on two pins of the PLC; the pneumatic component comprises a high pressure air source, a moisture separator and two airflow branches formed by respectively connecting the moisture separator with the two selective control valves, wherein, one of the airflow branches is communicated with a positive pressure gas discharge pipe, and the other one is connected with a negative pressure generator and a negative pressure gas discharge pipe and communicated with the parts to be tested, so that negative pressure is formed for testing the parts to be tested by vacuum-pumping. The testing device can accurately control the negative pressure applied on the objects to be tested, meet the strain resistance and corrosion resistance tests of dynamic and static rubber mebranes, and accurately control the frequency, time and count of the movement of the mebrane without needing a person specially assigned for monitoring, thereby improving the working efficiency of the test and greatly reducing the energy consumption.

The invention discloses an intelligent control system for an electric mop. The intelligent control system for the electric mop comprises an interactive interface which is used by a user to input operation requests to the control system of the mop; an automatic feeding module which is used for receiving the operation application of new feeding from the interactive interface, and sending a prompt that the new application of feeding operation is waiting to begin to a control module; a PLC controller which is used for sending operating instructions which are inputted by the user through the interactive interface to the material replacement module; a material replacement module which is used for receiving the operating instructions from the PLC controller, and executing replacement operations or non-replacement operations of the material; an automatic discharging module which is used for executing the operations of the automatic discharging of the material. When the new application of the feeding operation is present, switching between a new material and a waste material is achieved through the material replacement module according to the operating instructions of the user, and the operations of the automatic replacement of the mop material are completed, thus the working efficiency of the material treatment is greatly improved.

The invention relates to an interactive controller comprising a central processing unit, a graphic processing unit, a video processing unit, a RAM (random access memory) controller, a non-easy-to-lose type storage controller, a video output module, a general I/O (input/output) interface, a network module and a video input module which are respectively connected with a module interconnection unit, the RAM controller is in RAM connection with a random access storage device, and a non-easy-to-lose type storage is connected with the non-easy-to-lose type storage controller; the video input module is used for video output interface of wired or wireless connection of operating terminals, and the video output module is used for video input interface of wired or wireless connection of display terminals and the operating terminals. Through the interactive controller, the operating terminals can access to a system in a wired or wireless manner, the existing intelligent terminals with computer functions can be adopted as the operating terminals, and users can demonstrate interactive operation in the whole area.

The invention relates to an operation monitoring system configuration monitoring page generation method, so as to solve the problem that an operation monitoring system configuration monitoring page obtained by the existing generation method cannot meet the requirements of industrial control system hardware changes. The method comprises particular steps that: 1) a monitoring page is built and a page parameter is defined; 2) the built monitoring page is judged whether to be a policy control page, if yes, step 3 is carried out, and if not, step 2 is carried out; 3) a control algorithm module is added to the policy control page; 4) data configuration is carried out; 5) need of new controls is judged, if the new controls are judged to be in need, step 6 is carried out, and if not, step 7 is carried out; 6) properties of the new controls are set; and 7) completion of the configuration monitoring page is judged, if the configuration monitoring page is completed, the completed configuration monitoring page is saved, and if not, step 1 is carried out. The method of the invention is used for remotely monitoring automation control engineering.

The invention discloses a flood early warning device in a polder area. The device comprises a base, insertion rods and a cylinder. Two sides of a bottom of the base are provided with the insertion rods, the cylinder is arranged at an intermediate portion of an upper surface of the base, a top end of the cylinder is provided with a control box, a bottom of an inner cavity of the control box is onlyprovided with a PLC controller, one side of the inner cavity of the control box is provided with a motor, a shaft portion of the motor is connected to a first gear, the first gear is rotatingly connected to a second gear, and the second gear is meshed with the first gear. When the device is used, the device is inserted into water to be fixed through the insertion rods, the device and a dam wall are firmly fixed by fasteners and connecting plates on connecting rods, the firmness is increased, the phenomenon that the device is washed away by water flow is effectively prevented, the first gear drives the second gear to rotate by starting the motor, so that a support table rotates, and a first camera can monitor the surrounding environment.

The invention discloses an intelligent toilet and a drying control method of the intelligent toilet. The drying control method includes the steps of detecting a seating state of a user; in the seatingstate, detecting an operation mode of a control rotary knob by the user; when it is detected that the user rotates the control rotary knob, starting a flushing mode; after the flushing mode is completed, detecting the seating state of the user; in the seating state, automatically starting a drying mode after the flushing mode is completed. In this way, after the control rotary knob is rotated tostart the flushing mode, a drying process is automatically started when the flushing mode is completed, there is no need to operate the control rotary knob again, more convenience is provided for use,and the user experience is better.

The invention provides a sludge concentration detecting instrument including: a controller including an input module, a main control module connected with the input module, a display and key module connected with the main control module, a storage module connected with the display and key module, an output module connected with the storage module, a control module connected with the output module, and a power supply module for providing continuously stable current and voltage for each module in the controller; and a sensor connected with the input module through a cable.

The invention discloses a virtual PLC simulation system comprising a lead-in module, a parsing module, a virtual PLC operation module, and a plurality of virtual execution devices. The above-mentionedunits are installed in a computer. The lead-in module is used for realizing leading in of a PLC program, carrying out a logic analysis on the PLC program, and storing the analysis result as a configuration file. The parsing module is used for reading the configuration file. The virtual PLC operation module is used for carrying out data processing on the read configuration file according to a PLCoperating principle. The plurality of virtual execution devices are used for carrying out simulated execution of corresponding actions according to a data processing result of the virtual PLC operation module. According to the invention, PLC control programs of various bands are written and tested by software learning; the learning process is simple and effective; and problems that may occur in actual PLC programs can be solved by combining the drill process during the learning and study process, so that the design program feasibility is improved substantially. Meanwhile, the time occupied bythe debugging link is reduced and thus the design program meets the control requirement well, so that the safe and reliable operation of the entire system is guaranteed.

The invention discloses a universal programmable logic controller (PLC) communication module for a field bus, which is characterized in that a first communication interface connected with a Modbus transmission control protocol (TCP) slave station communication stack is a Modbus TCP interface; a second communication interface and a third communication interface which are connected with a Modbus remote terminal unit (RTU) master station communication stack are a Modbus RTU interface I and a Modbus RTU interface 2 respectively; a fourth communication interface connected with a Profibus master station communication stack is a Profibus special bus interface; a fifth communication interface connected with a Can master station communication stack is a Can special bus interface; and a sixth configuration interface connected with a transmission control protocol-internet protocol (TCP-IP) communication stack is used for controlling the working states of the second communication interface, the third communication interface, the fourth communication interface and the fifth communication interface. The universal PLC communication module for the field bus is capable of realizing the simultaneous data interaction with various types of bus equipment according to configurations.