50 results about "Wireless networked control system" patented technology

The present invention relates to a smart agriculture monitoring system based on a Web of Things. The system includes a CPU, connected with a smart sensor, a smart adjusting and controlling device, a real-time image and video monitoring apparatus, a transmission apparatus, an alarm system and a terminal; the CPU is connected with the smart sensor, the smart adjusting and controlling device, the real-time image and video monitoring apparatus, the transmission apparatus, the alarm system and the terminal via the wireless network controlling system; and the smart agriculture monitoring system is powered via a solar energy powering apparatus. The Web of Things agriculture smart detection and control system can greatly increase manufacturing and managing efficiency, save manpower, and can conveniently provide a strong scientific data theoretical support to aspects such as various agricultural fields or researches; and the important function thereof is obvious in the highly automated and intelligentized society.

To provide a technology capable of accommodating, in parallel, wireless networks of a plurality of user groups having different authentication policies etc and providing a proper communication service in response to an access from a user of each of the user groups. A wireless LAN control device 3 includes a wireless LAN control unit having a transmitting / receiving unit performing communications with a plurality of wireless LAN access points 4 belonging to different user groups and a wireless LAN connection control unit executing control of transferring a user authentication request received by the transmitting / receiving unit via one of the plurality of wireless LAN access points 4 and given from a wireless LAN terminal 5 belonging to one of the user groups toward an authentication server 2 that should execute an authentication process in response to the user authentication request, and transmitting an authentication result given from the authentication server 2 in response to the user authentication request to the wireless LAN terminal 5 via one of the plurality of wireless LAN access points 4.

The invention describes a method of commissioning a device arrangement comprising a number of devices (L1, L2, L3,) communicating with each other over a wireless networked control system (WN). This method comprises the steps of—reading a unique identifier (ID1, ID2, ID3) from an electronic identification tag (T) which is tagged to a device (L1, L2, L3) currently to be installed by means of a reading device (3) carried by an installer who is to install the device (L1, L2, L3), and—compiling an inventory (IV) of the installed devices (L1, L2, L3) using the read unique identifiers (ID1, ID2, ID3),—commissioning of the devices (L1, L2, L3) using the inventory (IV). The invention further describes a commissioning system (100) for commissioning such a device arrangement, a data logger and an installation tool (1) for installing devices (L1, L2, L3,) usable in such a commissioning system (100).

A corresponding table between a number of a cell and a main base station (102) accommodating the cell is prepared in a node (wireless network control apparatus (101) or main base station (102)) within a radio access network. When a terminal (104) is moved and enters an overlapped area of cells (a) and (b) from an original cell (a), in the case that a main base station (102a) to which the terminal (104) was connected in the cell (a) can accommodate the cell (b) that the terminal (104) has entered, the sub base station (103b) is connected to the main base station (102a), and site diversity is performed in the main base station (102a). Thus, when site diversity is performed between main base stations in a radio access network using a base station in which a baseband processing section is separated from a radio transmission / reception section, traffic flowing between the wireless network control apparatus and the base station is reduced.

What is disclosed is a wireless network control system configured to communicate with a wireless access node over a plurality of backhaul links. The wireless network control system includes a backhaul interface configured to monitor individual transmission delays for the backhaul links. The wireless network control system also includes a processing system configured to determine a data packet for transfer to the wireless access node and separate the data packet into a sequence of packet fragments. The processing system is also configured to select an individual one of the backhaul links for each of the packet fragments based on relative positions of the packet fragments in the sequence and based on the individual transmission delays of the backhaul links.

An intelligent multi-span greenhouse mushroom house remote control system comprises a first production line, a second production line, a first wireless network control system, a second wireless network control system, a first data control system, a second data control system, a central server and a monitoring command center system. The intelligent multi-span greenhouse mushroom house remote control system achieves intelligent remote control, can reflect real-time conditions of all mushroom houses relatively intensively, facilitates centralized control, reduces the times of manual troubleshooting, saves cost, greatly shortens management practice of technical production, and well serves production.

The invention discloses a hydraulic bracket control device with a personal safety protection function and a control method thereof. The control device comprises a hydraulic bracket electro-hydraulic control host and a plurality of hydraulic bracket controllers and further comprises a non-blind area communication network arranged in a fully mechanized mining face, wherein the non-blind area communication network comprises a personnel positioning wireless transceiver or a personnel positioning wireless transmitter, a handheld remote control wireless transceiver, at least two wireless transmitting and receiving base stations and a wireless network control system host; the personnel positioning wireless transceiver or the personnel positioning wireless transmitter is carried by personnel in the mining face; the at least two wireless transmitting and receiving base stations are mounted on a hydraulic bracket or a scraper conveyor; the wireless network control system host is mounted in a underground coal face gateway; and the wireless network control system host is used for managing the whole non-blind area communication network. The hydraulic bracket control device with the personal safety protection function, disclosed by the invention, is a failure safe type protecting device, which realizes safety protection of full face personnel.

The invention discloses a method for scheduling a wireless networked control system with maximal tolerant time delay, and relates to a method for scheduling a network system. The method includes the processes: firstly, sequencing application layers of the industrial networked control system according to priorities specified by the system and extracting a first task in an operation to start building a task scheduling list and setting task start time and stop time; secondly, scheduling a next task in the operation; and thirdly, scheduling all tasks in a next operation, failing in scheduling if calculated theoretical completion time is not shorter than the deadline of the task, and rescheduling and issuing all operations and the tasks in each operation by the application layers of the industrial networked control system. By fully considering the characteristics of wireless communication technology and by the aid of the principle that network time delay is not fully equivalent to instantaneity of the system, the time delay is effectively shortened, instantaneity of the system can be improved, and the disadvantages of wireless communication technology application in the industrial networked control system are made up.

The invention relates to an intelligent light emitting diode (LED) brightening and information curtain wall wireless network control system, which comprises at least one LED brightening system. The LED brightening system comprises an LED curtain wall and an intelligent controller, wherein the input end of the intelligent controller is connected with a wireless information receiver and the wireless information receiver is wirelessly connected with the wireless terminal control system of an Internet of Things. The wireless information receiver is connected with the wireless terminal control system of the Internet of Things through a third-generation (3G) wireless network; the wireless terminal control system of the Internet of Things can transmit on-off states, remote information, environmental information and failure information of the LED curtain wall to the intelligent controller, and the information is displayed by the LED curtain; and the wireless terminal control system of the Internet of Things can manage a plurality of LED brightening systems, and the intelligent controller can control the working state of the LED curtain wall according to the working time of the LED curtain wall. The intelligent LED brightening and information curtain wall wireless network control system has the advantages of electricity saving, simple and compact structure, convenience in operation and management, good stability in use and high safety and reliability.

Disclosed in the present invention are a method and device for calculating statistics of inter-system reselection frequency, for realizing calculation and analysis of inter-system reselection frequency of dual-mode user equipment during the 3G network construction in the situation where the 2G and 3G networks are deployed as different location areas at the initial stage of network construction. In the present invention, in the situation where the 2G and 3G networks are deployed as different location areas at the initial stage of network construction, the data is collected based on the radio network control system, the location area or routing area update log of the UE is counted and analyzed, multi-dimensional classification is carried out by the signaling monitoring and analysis system at the network side, the distribution of inter-system reselection frequency of dual-mode user equipment during the 3G network construction is reflected in the sense of statistics, so as to direct the network area coverage layout and network convergence establishment planning and improve user experience.

The invention discloses a wireless network control system which comprises a wireless signal monitoring module, a control module, a wireless access point and multiple antennas distributed at differentpositions, wherein the wireless signal monitoring module monitors the intensity of signals in a signal coverage area of the wireless access point; the control module determines the number and positionof started antennas according to detection results of the wireless signal monitoring module. Signal enhancement is achieved in the coverage area of a wireless signal network, thereby allowing users to enjoy better experience.

The invention relates to the technical field of network control and discloses a multi-sensor estimation performance method in a wireless network control system. The method comprises the steps of (1) acquiring sensor parameters of a wireless network control system, and establishing dynamic characteristics of the process and sensor measurement equations; 3) connecting multiple sensors and setting up two channels between every two sensors; using one of the connected channels for data transmission, and switching the channel if packet dropout starts to occur to this channel; and calculating prediction values and prediction error covariance matrices of the sensors of the single channel and at the center of the multiple channels; and (3) comparing the transmission performance of the two sensors through the two channels, and according to the data conditions of the prediction values and the prediction error covariance matrices completed on the channels in the step (2), generating a comparative plot of the multiple channels. According to the invention, that the sensors are effectively scheduled in a multi-channel transmission system is ensured by using a Kalman filtering algorithm to reduce the estimation error.

The invention discloses a method for designing an optimal linear control strategy for a wireless network control system. The method comprises: step S1, initializing the system, i.e., a wireless network control system model based on distributed control nodes; step S2, analyzing the influence of network delay characteristic on the distributed network control system; step S3, optimizing the network control system based on distributed control nodes; step S4, designing an optimal linear control strategy for double distributed control nodes by adopting a recursive method; and step S5, designing an optimal linear control strategy for distributed control nodes, i.e., popularizing the conclusion of the obtained optimal linear control strategy for double distributed control nodes to the general distributed wireless network control system based on multiple control nodes. By adopting the technical solution, the stability of the wireless network control system is effectively improved, and the loss of the system is reduced.

Systems, methods, and software that enable a mobile control device to manage wireless communication devices. The mobile control device receives a user-type instruction indicating a user-type and a map instruction indicating a geographic area. In response to receiving these instructions, the mobile control device displays on a touch display a geographic map indicating the wireless communication devices of the selected user-type that are located within the selected geographic area. The user touches the display through the geographic map to select some wireless communication devices of the selected user-type within the selected geographic area. The mobile control device receives an activation instruction for the selected ones of the wireless communication devices and in response, wirelessly transferring an activation message indicating the activation instruction for the selected ones of the wireless communication devices for delivery to and execution by a wireless network control system.

The invention discloses a camera controlled remotely through a wireless network, and the camera comprises a housing and a pedestal. The interior of the housing is provided with a wireless network control system, and the housing is provided with an optical sensor module group and a power supply. The wireless network control system comprises a processor, a wifi module, a storage unit, a clock module, an illumination module, an alarm module, a wired communication module, an infrared sensor and a pickup, wherein the wifi module, the storage unit, the clock module, the illumination module, the alarm module, the wired communication module, the infrared sensor and the pickup are in communication connection with the processor. The front end of the housing is provided with a filter lens at an outer side of the optical sensor module group, and the filter lens is fixed on the housing through a filter lens frame. The camera provided by the camera can receive an instruction sent by a user through a wireless network or a wired network, and also can automatically monitor the movement in a monitored region. The camera is provided with a processor, so the camera is good in intelligent monitoring effect. Meanwhile, the installation mode of the camera is optimized, and the installation and connection is more convenient.

The invention relates to the field of wireless network program transmission of linear cutting equipment, in particular to a wireless network control system and a wireless network control method of linear cutting equipment. The system comprises a computer and linear cutting equipment, wherein the computer is connected with a wireless group control communication controller by an interface, the linear cutting equipment is connected with a wireless terminal control device, and wireless data transmission is formed between the wireless group control communication controller and the wireless terminal control device. The invention overcomes defects existing in the background technique, realizes data transmission between the computer and the linear cutting equipment in a wireless transmission mode, realizes the concentrated transmission management of a linear cutting numerical control program under the support of control system software at the computer end, also realizes the concentrated operational control and the concentrated state monitoring of the linear cutting equipment, has simple operation and high speed of program transmission and greatly enhances the work efficiency and the control management level of the linear cutting equipment, and the accuracy is 100%.

The invention belongs to the technical field of wireless communication networks, and discloses a multi-objective optimization time slot allocation method based on a concurrent set, and a wireless network control system. The multi-objective optimization time slot allocation method based on the concurrent set comprises the following steps: dividing nodes in a network into multiple concurrent sets based on the topology information of the nodes in a wireless network; executing, by a node for decision making, an algorithm according to the collected network topology information, dividing all nodes in the network to different concurrent sets, wherein the nodes in each concurrent set can multiplex channel resources to achieve concurrent transmission; and establishing multi-objective optimization mathematical model. By adoption of the multi-objective optimization time slot allocation method provided by the invention, in some occasions, the application scene of the resource allocation technologyneeds to take into account multi-party performance, and even the resource allocation strategy is required to have the ability of focusing on a certain target based on the real-time information to make allocation decision making according to dynamic demands. By adoption of the multi-objective optimization time slot allocation method provided by the invention, a plurality of performance indicatorsare mathematically abstracted, and the optimal solution is searched by establishing the multi-objective optimization mathematical model.

The invention discloses an optimal linear control method for a network control system based on a distributed wireless network. The method analyzes the influence of time delay packet loss of the wireless network on the network control system for the long network time delay and the continuous packet loss characteristic of the distributed wireless network. The method adopts a quadric cost function as a system utility function and utilizes a method for iteration from back to front to obtain an optimal linear closed-loop state feedback control strategy for wireless network control, the quadric cost function is a linear function for the current state of a platform and a past control signal, and meanwhile, an optimal design scheme for a position of a control node network is provided. The method utilizes the distributed characteristic of the wireless network to select one node in the network as a controller flexibly and conveniently, and through selecting a proper network transmission path, the system stability of the wireless network control system can be effectively improved, and the system loss can be reduced.

The invention discloses a joint simulation method and system for a wireless network control system, and the method comprises the steps: combining network simulation software OPNET with system simulation software MATLAB, and designing a WNCS joint simulation system based on the OPNET and Simu l ink. Meanwhile, in order to more accurately simulate a real network environment, an MANET (Mobile Ad Hoc Network) routing protocol is added into the built joint simulation system, and the joint simulation method of the WNCS based on the MANET is designed, so that the joint simulation of the control system and the network environment under a network protocol framework is realized. According to the method, the characteristics of the whole WNCS can be truly simulated, a powerful verification platform is provided for the theoretical achievement of the WNCS, good expansibility is achieved, different types of WNCSs can be simulated by utilizing the platform, and according to the needs of users, the platform is modified and adjusted to a certain extent so as to realize the combination of WNCS joint simulation and other network protocols.

The invention discloses a wireless network control system. The wireless network control system is used for carrying out control on a plurality of wireless access points at different positions, and thesystem comprises a radio frequency identification module and a control module, wherein the radio frequency identification module comprises a reader and a plurality of electronic tags, and each electronic tag at least comprises identity identification information matched with one wireless access point; the reader is connected to the control module; the electronic tags send the respective identityidentification information to the control module by the reader; and the control module decides to open the corresponding wireless access points according to the identity identification information soas to more conveniently and easily control the wireless network system and enable a user to obtain a better experience effect.

The invention relates to an installation tool for RF (Radio Frequency) networks, such as a wireless networked control system, for example a wireless lighting system. A basic idea of the invention is to provide an installation tool, which allows controlling a setting of a device by performing a simple and intuitive action with the tool, for example turning the tool like a screwdriver. An embodiment of the invention provides an installation tool (10) for a wireless network of devices, wherein the tool comprisesa transceiver (12) to communicate wirelessly information with devices of the wireless network,an action detector (14) for detecting a user action with the tool, anda controller (16) configured to control a setting of one or more devices by means of the wireless transceiver upon receipt of an action signal from the action detector.The invention helps to make the installation of a wireless network, particularly of controlling settings of devices of a wireless network more simple and intuitive for a user by applying the inventive tool than using PDA or computer for installation.

The invention relates to a wireless network control system of a ground artificial rain device, which consists of a central control system, a field control system and a burning system. The central control system and the field control system exchange data with the internet through the wireless network to receive the status of the burning system and send the instructions of startup, closing, pipeline eliminating and field parameter replacing to the field control system so as to realize remote measurement and control and reduce operation cost and manpower burden due to long-time burning; the central control system conducts value simulation and analysis and puts forward the decision analysis of increasing or decreasing burning work; the field control system controls the burning device through a procedural logic system, and uses different valve switches to conduct complex procedures of ignition, ceasefire, eliminating the residual solution of pipeline so as to ensure the smooth burning of burning system. The system also can monitor the burning status sent back to the central control system in a real-time manner.

The invention relates to an outdoor construction equipment wireless network control system on basis of private protocol. The invention creates: 1, a novel real-time control WLAN (Wireless Local Area Network) structure, wherein the signal propagation of the system is not limited by the sighting distance, a signal can be diffracted and the communication barrier cannot be caused due to blocking, and thus, the communication propagation characteristic of the wireless network structure is very suitable for large-scale mobile construction equipment and is particularly suitable for joint control between equipment groups and the characteristic has very high using value; and a private protocol stack for controlling a wireless network in real time on the basis of a carrying and erecting device controller structure, wherein due to the adoption of the private protocol, the efficiency of a monitoring system can be improved and the data processing capacity is improved, the sealing performance of the private protocol is very beneficial to the safety of the system, an invasion approach is limited in a very small range, a designer can unhurriedly adopt corresponding countermeasures and an unsymmetrical bus structure is adopted on a real-time WLAN data link layer.

A system and method for identifying weaknesses in a wireless network, wherein a wireless network control system exercises a wireless network by transmitting a large volume of data between nodes in order to identify network weaknesses and communication bottlenecks, wherein the wireless network control system is automated so that it may perform identification of network problems without user intervention, and wherein the wireless network control system may make suggestions as to how the network weaknesses and communication bottlenecks may be repaired.