98 results about "LonWorks" patented technology

Disclosed herein are a building management system (BMS) and an operating method thereof. A BMS controller of a LonWorks network integrally controls a multi-air conditioner system which uses a different communication scheme, without modification of the structure thereof. The building management system comprises a BMS controller (50) for centrally controlling subsystems (60 and 70) installed in the building and connected to a LonWorks network (N₂), an air conditioner system (70) including a plurality of outdoor units (71) and a plurality of indoor units (72) connected to the outdoor units, and a Lon gateway (80) for converting data of an air conditioner system network (N₁) into data of the LonWorks network (N₂), and vice versa, to enable the BMS controller (50) to centrally control the air conditioner system (70). The building management system can incorporate a multi-air conditioner system which utilizes a different communication technology, without modification. The building management system also facilitates low-cost installation of an integrated control system in the building because each one of the indoor units constituting the multi-air conditioner system can be separately controlled without the need for a communication module to be connected to each indoor unit.

The invention is particularly suitable to automatic reading family meter of energy dissipation, and centralized monitoring safe alarming equipment and electrical appliance in intelligentized residential district. The technical scheme is as following: household gateway, household intelligent controller, interactive terminal, hand hold reading meter and computer, which constitute the system, are connected to LonWorks bus, I2C bus and telephone network respectively; controlling programs of household gateway, household intelligent controller, interactive terminal, hand hold reading meter cooperated with monitoring programs of computer accomplish functions such as building system network; creating, starting up and deleting user's device objects; monitoring alarming message and device operating state, collecting data of meter reading automatic alarming through telephone and remote access. The invention provides powerful functions, stable reliable performances, offering convenience for managing residential district.

The invention relates to a field bus building integrated control system based on a LON bus technology. The integrated control system consists of a LonWorks/IP server, an Internet server, a LON DDC controller, an LNS server and a remote client; moreover, the system adopts an intelligent building management system, namely a typical structure of two-level network and three-level management of an intelligent building management system (IBMS), that is to say, a two-level network structure formed by a field bus network, namely LonWorks bus network, and a local area network consisting of a client/server structure, as well as a three-level management structure formed by a field direct digital controller (DDC) for control, a process management server and remote client management are adopted. The field bus building integrated control system has the characteristics of intact structure, advanced technology, visualized image and wide coverage, and is suitable for field bus building integrated control systems involved in university curriculums such as 'Building Automation Technology and Application' and 'Building Automation System Integration Technology'.

The invention provides a downhole monitoring system which comprises a ground control center, a plurality of lightningproof bars, a plurality of base stations, a plurality of power boxes with explosion-protection and intrinsic safety, a plurality of sensors, communication cables and a plurality of transceivers. The plurality of base stations are arranged in each important detecting point of an downhole; a ground center control system is connected with the base stations through the communication cables; a LonWorks field bus mode is adopted for transmission, wherein, each base station comprises a wireless communication module, a singlechip and a nerve cell chip. The wireless communication module is used for radio-frequency wireless bidirectional communication with the transceivers and receiving the position and state information of a mobile target of the downhole. The singlechip is used for processing various monitored environmental parameters. The nerve cell chip is used for data transmission with the ground control center through the LonWorks field bus. The plurality of transceivers are arranged on the mobile target of the downhole and has wireless bidirectional communication with the base stations. The invention can make downhole operation safer and more reliable.

The invention provides a method for backing up a lonworks network service (LNS), and the method comprises the steps of receiving and locally storing information of a layer 2 tunneling protocol (L2TP) tunnel transmitted by a second LNS device staying at an active status through an expanded virtual router redundancy protocol (VRRP) message when a first LNS device stays at a standby status, wherein the tunnel information comprises a tunnel identification (ID), a conversation ID and an internet protocol (IP) address of a location area code (LAC); switching the first LNS device to the active status, activating the local stored tunnel information and issuing a host computer route of a virtual IP address to a network when the first LNS device staying the standby status ensures that the second LNS device staying at the active status has failure or receives an L2TP tunnel takeover notice transmitted by the second LNS device staying at the active status; and revoking the issued host route of the virtual IP address when the first LNS device is switched from the active status to the standby status. According to the method and the device, no requirement for the geological location of the devices which are mutually backed up each other exists, so that the networking flexibility is greatly improved.

The invention discloses a multifunctional three-phase electric power monitoring apparatus, and belongs to the technical field of power utilization safety and energy conservation. The multifunctional three-phase electric power monitoring apparatus comprises a micro-control unit, and a power supply unit, a Lonworks intelligent transceiver, a relay control module, a power utilization measurement chip, a cable temperature detection circuit, a data storage circuit and a high-precision real-time clock circuit that are connected with the micro-control unit separately. The multifunctional three-phase electric power monitoring apparatus has the functions of monitoring the voltage, current, power, power factors, leakage current, cable temperature, harmonic components and electric energy measurement, high-precision calendar clock, and the like; alarm threshold values can be set for all monitored parameters; an alarm can be sent out when parameter overrun occurs, and the system power supply can be configured to be switched off in case of alarms; various electric energy related parameter data is provided for performing evaluation and analysis for building electric energy quality; and in addition, automatic power supply or power off control can be carried out according to set time frames or remote instructions; and the energy conservation control for buildings satisfies the philosophy of green buildings.

The invention discloses a comprehensive electricity consumption measurement and control management terminal and belongs to the technical field of electric use safety and energy conservation. The terminal comprises a microcontrol unit and an illumination intensity acquisition module, a human body induction module, an electric quantity acquisition module, a data storage module, a real-time clock module, a Lonworks intelligent receiving and transmitting device, an RS485 communication interface and a man-machine interaction interface platform which are all connected with the microcontrol unit. By means of the terminal, energy consumption conditions of electric appliances in a building can be accurately monitored, statistical analysis of the energy consumption conditions and energy consumption charging are facilitated, the terminal has various energy-saving control modes and can be conveniently set, bases are provided for flexible control strategy implementation of a comprehensive energy management system, and the effects of reasonably using energy and reducing energy consumption are achieved. Consumption reduction indexes can be sent through the system in the electricity use peak hours, the set temperature is automatically adjusted through a temperature controller, and the aim of reducing consumption is achieved. The terminal can be widely applied to energy-saving systems of an air conditioner, an illumination device and other electric appliances of the building.

The invention discloses an integrated rail transit screen door machine controller. A direct-current brushless motor drive module is connected with a central processor through an isolating circuit; the central processor controls the operation of the motor by means of the direct-current brushless motor drive module and a three-phase full-bridge circuit; the central processor is connected with a LonWorks communication module through an isolating circuit, and the LonWorks communication module is connected with a LonWorks bus through a LonWorks communication transmission transformer; the central processor is connected with a CAN (controller area network) communication module through an isolating circuit, and the CAN communication module is directly connected with a CAN bus; the external input command signal of a control unit is inputted into signal conditioning circuits via a signal bus to be conditioned and then transmitted to the central processor via isolating circuits; and the status indication signal of the central processor is transmitted to the control unit via isolating circuits and drive circuits. The integrated rail transit screen door machine controller is small in size, highly integrated and highly stable, and has a self-test function, all the circuits are isolated from one another, and the integrated rail transit screen door machine controller is easy to maintain.

The invention discloses a system and a method for distributed standby power supply management based on a LonWorks bus. The system comprises an above-ground system and an underground system, the above-ground system comprises a monitoring host and a signal converter, the monitoring host is used for displaying finally integrated information, and the signal converter comprises a neuron chip PL3120 and a LonWorks interface. The underground system comprises the LonWorks bus, a plurality of monitoring substations, standby power supplies for the monitoring substations and a plurality of LonWorks devices, wherein the LonWorks devices are used for acquiring thermal-electric parameters such as the temperature, the electric quantity and the voltage of the standby power supplies and actively transmitting the acquired information to the LonWorks bus. The LonWorks bus is used for the standby power supply management system for a coal mine monitoring system, the standby power supplies for the monitoring substations can be simultaneously managed, and the problems of long data polling acquisition period and poor communication instantaneity when the number of substations is large or a communication data packet is large as a master-slave polling mode is adopted in existing bus communication technology are solved.

The invention discloses a device for detecting fault of a single module of a CCBII brake. The device comprises an operating platform, a detection platform and a power supply cabinet, and is applicable to quick fault detection and overhaul of a locomotive brake device. The device designs a test air circuit board for comprehensively simulating an air pipeline of a locomotive brake system, a LONWORKS data communication environment under the whole working condition, high-reliability electrical characteristic parameters and complete test procedure, can comprehensively simulate the working environment and the air pipeline of the CCBII brake and can comprehensively test the network control performance, the air pipeline performance and the electrical performance of each suspicious module so as to judge whether the modules meet the on-board requirement. The device provides various test methods such as parameter arrangement, fatigue test and the like for testing the single module of the CCBII brake, can flexibly process various modules to be tested, solves the problems of long returned maintenance period, high maintenance cost, high module erroneous judgment ratio and the like, and has a good application prospect.

The invention discloses a sub-district terminal network oriented security system, comprising a door control sub-system, a server, a management center, a sub-district monitoring sub-system an at least one household security sub-system. The household security sub-system comprises a control unit and a wireless detection point, wherein the wireless detection point is used for detecting security conditions, and the control unit is integrated with a wireless receiving module; the sub-district monitoring sub-system is used for setting a camera at an appropriate position in the sub-district so as to acquire video information and monitor movements in the sub-district and the neighboring environment; the management center is used for receiving the alarming information sent by each sub-system and feeding back information to users and each sub-system; and the server is used for converting a LonTalk protocol into a TCP/IP (Transmission Control Protocol/Internet Protocol) and communicating with the management center through a network card. The sub-district terminal network oriented security system is based on a Lonworks bus, and each sub-system is respectively connected to the Lonworks bus as a node by being connected with a router. The security system provided by the invention has better openness and reliability, and is easy to expand and maintain.

The invention discloses a double-controlled intelligent single-phase electric energy meter with a malignant load identification function, and belongs to the technology field of electrical safety and energy conservation, the electric energy meter comprises a micro-control unit, and a power supply unit, a two-way relay control module, an electricity metering chip, a data storage circuit, a real-time clock circuit, a liquid-crystal display circuit, a Lonworks intelligent transceiver, an RS 485 communication interface and an infrared communication interface which are separately connected with the micro-control unit. The invention relates to the intelligent electric energy meter, specifically relates to an intelligent multi-fate single-phase multifunction electric energy meter comprising functions including malignant load detection, control and prepayment, can be widely applied to dormitories of students and enterprises and public institutions and other places with centralized people, and can also be applied to places such as home, flat, store and the like, electricity metering and billing, electricity consumption management and safety management are realized. The electric energy meter can serve as a mating device of an energy management system, an energy-conservation control system and an electricity safety management system.

The invention discloses a system for measuring thermal insulation effects of metallurgy thermal insulation material and particularly relates to a system for measuring the thermal insulation effects of molten iron thermal insulation material. The system mainly comprises a testing furnace, automatic temperature collecting equipment and a computer data processing system. The testing furnace is a cylindrical furnace formed by alumina fiber lightweight refractory material and provided with a cylindrical hollow-structured hearth. The top and the bottom of the hearth are circular. The lateral wall of the hearth is vertical to the top and the bottom of the hearth. Thermal insulation cotton is disposed between the outer wall of the hearth and a furnace shell. Heating element silicon carbon bars are embedded in the lateral wall of the hearth to guarantee that the heart is evenly heated. A thermocouple is fixed at the bottom, close to the upper surface, of the hearth. The automatic temperature collecting equipment is respectively connected with the other ends of the silicon carbon bars and the thermocouple. Temperature signals are converted into voltage signals to be input into a DTW temperature control instrument through AD595, and a computer collects the temperature displayed by the precise temperature control instrument through LONWORKS and automatically draws the temperature curve changing along with time. The system has the advantages that the testing furnace is small-sized, simple, convenient and safe to operate, and especially suitable for lab researches; the whole system uses combined automatic control, and the thermal insulation effects of thermal insulation material is visually reflected.

The invention relates to an EPA bus and LonWorks bus conversion adapter. The EPA bus and LonWorks bus conversion adapter comprises a LonWorks bus interface, a core control module and an EPA bus interface, wherein the LonWorks bus interface comprises an LonWorks network chip and a peripheral circuit thereof, and a neuron chip and a peripheral circuit thereof; the core control module comprises an ARM control chip and a peripheral circuit thereof, a 24V-5V power supply module, a 5V-3.3V power supply module and a standard JTAG circuit interface; the ARM control chip prefabricates a software system; and the EPA bus interface comprises an EPA network chip and a peripheral circuit thereof, and a network transformer. The adapter realizes mutual communication of a LonWorks bus and an EPA bus so that LonWorks equipment and EPA equipment can coexist in the same system; and when the equipment of a control system is upgraded in an industrial process, the system reforming cost is greatly lowered because new and old equipment are compatible.

The invention discloses a direct interface method for a Loytec module bus and a high-speed intelligent unified bus, which is used for solving the technical problem that the conventional Loytec module bus cannot directly access the high-speed intelligent unified bus. The technical scheme comprises the following steps of: realizing high-speed serial-parallel conversion of high-speed intelligent unified bus data by high-speed serial-parallel conversion; configuring a high-speed intelligent unified bus protocol by using a low-speed logic device; caching data by using a high-speed double-port static random access memory (SRAM); intelligently switching a read-write clock of the SRAM by using a high-speed monitoring unit; and implementing an interface among a LonWorks bus of a Loytec module, Ethernet and a high-speed intelligent bus so as to complete interconnection of the Loytec module with the high-speed intelligent unified bus. Meanwhile, flexible interconnection of the Loytec module bus with other buses is implemented, the quantity of interconnected bus media in a system is reduced, and the power consumption of the system is lowered.

The invention is in order to solves existing circumstance that researching on I/O object at home and abroad is focus on application, and issues such as how to build communication relation between I/O object and network variable as well as how to compare and display data of communication have not solved yet. LonWorks bus interfaces of first transceiver and second transceiver in the system are connected to LonWorks bus. The method includes steps: staring up and initializing sending node and receiving node, and binding network variable of each node; using code dialed switch A with eight routes inputs a transmission reference value, and then the send button is pressed; using code dialed switch B with eight routes inputs a value again, and then the send button is pressed; repeating the said step for ten times, ending, the invention can implement communication of LonWorks I/O under different transmission condition, as well as can carry out comparison and display.

The invention discloses a mobile terminal access method and relates to the field of network security. The mobile terminal access method is provided for solving the problem that unified schedule cannot be performed by the prior art. The method comprises the following steps that S10, a user terminal transmits an access request to a preset access server which can uniformly receive the access requests sent from all user terminals, wherein access ways are carried in the access requests; S20, the access service receives the access request transmitted by the user terminal and determines the access way according to the access request; S30, if the access way is virtual private dial-up network (VPDN) line access, the access server transmits the access request to a preset LonWorks Network Server (LNS); S40, after receiving the access request transmitted by the access server, the LNS verifies the access request, obtains a verification result and returns the verification result to the access server; S50, the access server receives the verification result returned by the LNS; S60, when the verification result is failed by verification, the access server returns the verification failed information to the user terminal.

An online energy audit system based on Electromechanical to Internet of Things (EM2IoT) and for use in a building, comprising at least one versatile device and data management unit (DMU) adapted and configured for connecting, interacting, intercommunicating with each of energy metering devices, energy consuming devices, and/or environmental sensors installed in the building and manipulating first data received and transmitted therebetween by making use protocols including RS232, RS485, MODBUS, RTU, BACnet, Lonworks, KNX, M-BUS, and/or CAN; and for outputting and sending a second data derived from the first data in a dedicated format with TCP/IP protocol and/or UDP/IP protocol to a remote server or control management apparatus for performing system control and data analysis operations for enabling an online and real-time energy audit for the building.

The invention relates to a LonWorks node multi-I/O device based on a nerve cell chip, which solves the problem of difficulty in driving multiple I/O devices caused by lack of general I/O pins provided by the nerve cell chip under the condition of not introducing other processors. An application node hardware circuit comprises the nerve cell chip and peripheral circuits, the designated I/O interface of the nerve cell chip is connected with a plurality of buffers and latches through at least one chip select unit; the buffers and latches are respectively connected with one I/O device, and the designated I/O interface of the nerve cell chip is also directly connected with the buffers and latches; the implementation of the multi-I/O device based on nerve cell chip LonWorks node is composed of the following steps that each I/O device module selects the connection mode with the nerve cell chip; each I/O device module designs the interface circuits and decoding circuits; an application system designs the software implementation scheme.

The invention provides a LonWorks bus based building automation system, which is characterized in that a BAS upper monitoring computer is connected to a plurality of routers through a TCP/IP communication protocol, each router is connected to a plurality of nodes through LonWorks, each node is an air-conditioning unit, a cold water system, a fresh air unit, a water supply and drainage system, a power transformation and distribution system, an elevator system, a lighting system, a heat exchange system or a PC (Personal Computer), and the BAS upper monitoring computer is connected to at least one PC via router relaying through the TCP/IP communication protocol. The LonWorks bus based building automation system adopts the TCP/IP communication protocol, so that extension is accomplished very easily, the openness is guaranteed, and setting of the routers particularly has excellent effects for interaction of non-specific mobile terminal; the PC is connected in a subnet, so that powerful interoperability and information sharing capacity can be provided, extremely rich functions can be provided for various platforms based on the PC, and a visual interface and the convenience of information processing can provide very good user experience.