565 results about "Remote Terminal Unit" patented technology

A wireless interface remote monitoring system for self-propelled irrigation systems (center pivot and lateral move sprinklers) includes a remote terminal unit (RTU) mounted on an outer drive tower of the irrigation system. The RTU includes a radio transceiver capable of sending and receiving data packets over a satellite or terrestrial telemetry backbone to and from a central control computer. The RTU further includes a current sensor and a GPS receiver both for detecting movement or non-movement of the sprinkler, a microprocessor with nonvolatile memory for storing current data and GPS coordinate data from readings taken in series over time, and a pressure or flow sensor for detecting the presence or absence of water flow at the outer drive tower of the sprinkler. The current sensor connected between the RTU and a tower drive motor, allows the RTU to calculate the “movement” or “non-movement” of the irrigation system over a specified time period. Redundantly, the GPS receiver records changes in position to indicate movement or non-movement within the GPS error tolerance. Once a change from movement to non-movement or vice-versa is determined, the RTU transmits the data by satellite or radio telemetry to a central control computer which logs the movement or non-movement of the monitored drive tower, the GPS coordinate data and the water status readings, all with time and date stamp. The central control computer creates “page message” and “text message” updates as necessary on the status of individual irrigation systems and “groups” of irrigation systems that are in turn delivered to wireless devices and computers for sprinkler operators.

A communications system includes a telecommunications link (3) between a remote terminal (CPa-c) (such as a burglar alarm control panel) and a control station (1). Polling requests are transmitted on a digital messaging channel which is carried by the telecommunications link. The remote terminal (CPa-c) generates a poll response message which is partially encrypted and is returned on the digital messaging channel to the control station where it is decoded.

To provide a superposition type portable terminal unit in which functions other than opening and closing functions are added to opening and closing operations thereby to improve the operating performance of the portable terminal unit. In a superposition type portable terminal unit in which a first housing having at least a display section and a second housing having at least an operation section, in a close state where the display section and the operation section face in the same direction and the housings are superimposed on each other so that the operation section of the second housing is covered with the first housing, are coupled at their ends by a coupling part having an axis in a direction where the both housings are pierced, the unit is put in an open state in case that the first housing is turned about the axis from the close state in any of a clockwise direction and a counterclockwise direction; and a control unit is provided, which selects a screen so that a first screen is displayed in the display section in case that the first housing is turned in relation to the second housing clockwise from the close state, and so that a second screen is displayed in the display section in case that the first housing is turned in relation to the second housing counterclockwise.

A communication system includes a local terminal apparatus connected with a local network, a remote terminal apparatus connected with an external network, and a control apparatus interposed between the local network and the external network. The local terminal apparatus includes a reply section for returning an answer signal including a status information of a processing executing section via the local network in response to a request signal received via the local network. The control apparatus includes a gateway section for receiving the request signal transmitted from the remote terminal apparatus via the external network, and thereafter, transmitting the received request signal to the local terminal apparatus via the local network, and for receiving an answer signal corresponding to the request signal from the local terminal apparatus via the local network, and thereafter, transmitting the received answer signal to the remote terminal apparatus via the external network.

The current invention provides a wireless monitoring system. The system has one or more monitoring devices. Each device can transmit data and receive messages from an output center or alarm system. The output center can also transmit and receive messages. Both the output center and each device preferably have a transceiver that enables both the transmission and receipt of messages. No remote terminal units hardwiring is required for the system to function. The system is truly a wireless gas monitoring system. The system may use low earth orbit satellite technology, or licensed radio frequencies or any other means to wirelessly transmit and receive messages.

A lightweight remote payment terminal is disclosed with the capability of capturing a tip amount and a signature authorizing a credit card transaction. The remote payment terminal allows diners to complete restaurant credit card transactions with minimal involvement from restaurant staff. A remote payment system is also disclosed that incorporates multiple remote payment terminals and one or more transaction servers. The transaction servers configure individual remote payment terminals with billing information, and the remote payment terminals capture information about credit cards that may be used for payment. A method of paying for credit card transactions is disclosed in which the non-tip portion of a bill is communicated to a remote terminal from a transaction server and the remote terminal is used to capture a tip amount and an authorizing signature. The transaction server obtains authorization to charge a credit card supplied by a user of the remote payment terminal either after or while the remote payment terminal captures information relating to the credit card transaction, including the user's signature.

The current invention discloses a wireless monitoring system. The system has one or more monitoring devices. Each device can transmit data and receive messages from an output center or alarm system. The output center can also transmit and receive messages. Both the output center and each device preferably have a transceiver that enables both the transmission and receipt of messages. No remote terminal units or hardwiring is required for the system to function. The system is truly a wireless gas monitoring system. The system may use low earth orbit satellite technology, or licensed radio frequencies or any other means to wirelessly transmit and receive messages.

The disclosure relates to phasor-based monitoring, protection and control applications in electric power systems supervised and / or managed by a Supervisory Control And Data Acquisition / Energy Management System (SCADA / EMS). In order to enable the applications without incurring heavy infrastructural investments, a phasor measurement facility is integrated into a Remote Terminal Unit (RTU) that is part of the SCADA / EMS system and comprises Input / Output (I / O) interfaces hard-wired to a substation of an electric power system. By taking advantage of the fact that RTUs as indispensable building blocks for any SCADA / EMS are part of every substation of the power system, no extra housing, cabling and EMC shielding for the additional functionality needs to be provided.

The present invention provides a Server (1) for allowing a user to connect to services using a remote terminal (“Host A”,3. “Host B”). The Server is coupled to the remote terminal via one of a number of communications links (4,5,2), as well as being coupled to the one or more services in use (4A). The Server generally includes a store for storing device data including an identifier for each of a number of terminals authorised to access the remote services. This is used by an authentication system which obtains an identifier from the terminal, compares this with the device data and establishes a connection in response to the successful comparison. The Server also includes a cache store for storing data transmitted to and received from the terminal. A switching system is used to determine if an alternative connection can be established via one or more alternative communications links, compare the alternative connection to the existing connection and, establish the alternative connection in response to a successful comparison. The Server also includes a security system (1A) which encodes data to be transmitted to the terminal in accordance with the data stored in the cache store and decoding data received from the terminal in accordance with the data stored in the cache store.

The invention discloses an intelligent visitor management system based on an android operating platform, and the system comprises a server, a fixed terminal, a remote terminal, a card issuing system and a door control system. The server is connected with the remote terminal in a network communication way; visitors put forward the visiting request through the fixed terminal; the server transmits request data to the remote terminal; and the server drives the card issuing system to dispatch IC (Integrated Circuit) cards corresponding to the door control system meeting the visiting request after receiving the confirmation signals issued from the remote terminal. The invention provides a multifunctional entry-exit registration and talkback management system integrating the technologies of identification card recognition (OCR), digital photography, automatic card issuing, radio frequency identification (RFID), online video IP telephone communication and touch screens..

The invention belongs to the technical field of street lamp illumination, and in particular mainly relates to a street lamp energy-saving and managing system based on internet of things. The system mainly consists of a main monitoring center, a remote terminal unit (RTU) and wireless sensor nodes, wherein the wireless sensor node which is responsible for detecting and controlling single lamp street to operate and executing a lamping switching-on and switching-off operation by receiving an instruction sent by the RTU is arranged on each street lamp, the wireless sensor nodes are connected with the RTU through a GPRS (General Packet Radio Service) module, and the RTU arranged at a transformer workstation is respectively connected with the main monitoring center, a server and a display device through Internet. The street lamp energy-saving and managing system disclosed by the invention can realize illumination as required, high efficiency and energy saving and fine management, solves the problems generally existing in the current street lamp monitoring management system and has the advantages of wide application range and suitability for popularization.

An edge switch enables service provisioning and dynamic service association for end devices coupled to the edge switch. The edge switch maintains a generic user profile that includes classification rules for classifying incoming traffic from the end devices to Virtual Local Area Network (VLAN) VLAN tunnel services. Upon detecting incoming traffic on an access port of the edge switch, the edge switch accesses the generic user profile to determine whether the incoming traffic matches one of the classification rules, and if so, automatically associates the incoming traffic with a VLAN tunnel service indicated by the matching classification rule to provide tunnel-based connectivity to remote end devices associated with the VLAN tunnel service.

Systems and methods for discovery and mapping of industrial control and SCADA networks are described herein. The disclosed systems and methods help operators ensure the cyber security of their SCADA network through accurate discovery, fingerprinting and mapping the industrial control network map, including PLCs (Programmable Logic Controller) and RTUs (Remote Terminal Unit), using passive techniques.

Methods and systems of manipulating data on an electronic device and a remote terminal are disclosed. The system includes at least one controller in an electronic device and a remote terminal, configured to initialize the electronic device and the remote terminal, detect a first input signal associated with a desired action, capture at least a portion of an external environment, detect a second input signal associated with the desired action, and perform the desired action on the electronic device and the remote terminal according to the first input signal and the second input signal. The system also includes at least one signal detection system in the electronic device and the remote terminal controlled by the at least one controller, at least one imaging and display system in the electronic device and the remote terminal generating an image output data in real-time.

The invention discloses an industrial control type automatic network communication protocol converter and a communication protocol conversion method. The network communication protocol converter comprises a microprocessor, an upper end connector expanding circuit, a lower end connector expanding circuit, a memory and a power supply circuit, wherein the upper end connector expanding circuit comprises a serial communication interface, an Ethernet interface, a hardware protocol stack chip, a software protocol stack chip and a switching switch for switching communication of the hardware protocol stack chip and the hardware protocol stack chip, and an upper computer; the serial communication interface is used for realizing connection of the microprocessor and a Modbus network; the Ethernet interface is used for realizing connection of the microprocessor and industrial Ethernet; and the lower end connector expanding circuit comprises a plurality of serial communication interfaces which are in communication connection with a plurality of lower computers one by one. With the adoption of the industrial control type automatic network communication protocol converter, the mutual conversion of free protocols and Modbus RTU (Remote Terminal Unit) protocols or TCP / IP (Transmission Control Protocol / Internet Protocol) can be realized, and the requirements of field-grade control and remote control are met.

A traffic speed control and surveillance system includes a speed sensor, vehicle identifier and transmitter / receiver disposed in a motor vehicle. The system also includes a plurality of mini remote terminal units disposed along a highway for monitoring signals from passing motor vehicles. Those signals identify the vehicle and speeds of those vehicles. The system also includes a communication center and one or more master remote terminal units for linking the mini remote terminal units to the communication center which processes the information. The communication center may also transmit a signal to disable the engine of an offending vehicle.

A system for securely transferring information from an industrial control system network, including, within the secure domain, one or more remote terminal units coupled by a first network, one or more client computers coupled by a second network, and a send server coupled to the first and second networks. The send server acts as a proxy for communications between the client computers and the remote terminals and transmits first information from such communications on an output. The send server also transmits a poll request to a remote terminal unit via the first network and transmits second information received in response to the poll on the output. The system also includes, outside the secure domain, a receive server having an input coupled to the output of the send server via a one-way data link. The receive server receives and stores the first and second information provided via the input.

An intelligent inspection robot for a power distribution station comprises a robot body, an in-station terminal and a remote terminal, wherein the robot body comprises a motion module and a detection module, and the motion module is suspended on a top rail to walk; the top rail is arranged along distribution control points in the power distribution station; the detection module is used for executing inspection, detection, monitoring, fault diagnosis and pre-warning and alarming tasks on the distribution control points; the in-station terminal is used for controlling walking, detection, storage and communication of the robot body; the remote terminal receives a real-time scene image video and detection data transmitted by the in-station terminal for concentrated monitoring. The manual inspection cost can be substantially reduced, and the inspection frequency is improved; the reliability, the authenticity and the accuracy of inspection result data are improved; various monitoring data is collected, and powerful data support is made for analysis and pre-judgement of big data.

The present invention provides systems and methods for monitoring a host computing system from a maintenance computing system located at a remote location. The system of the present invention includes a frame grabber that is connected the digital output of a video controller associated with the host computing system and collects sets of data output in digital form from the video controller independent of an analog to digital converter. Each collected digital data set represents a frame of data displayed on a terminal of the host computing system by the video controller and is stored in a storage device associated with the frame grabber. Successive sets of data are also compared to each other, and the differences between the data are also stored in the storage device. During a maintenance session, a first data set representing the data currently displayed on the terminal of the host computing system is transmitted to the maintenance computing system, and thereafter, only changes between successive data sets are transmitted to update the maintenance computing system.

A method for offloading encryption and decryption of a message received at a message server to one or more end devices that are remote from the message server. An encrypting end device remote from the message server encrypts a message using cryptographic context and transmits the cryptographic context and encrypted message to the message server for storage at the message server. The message server stores the encrypted message as received without decrypting the message. The message server sends the stored cryptographic context and the encrypted message to a decrypting end device in response to the decrypting end device sending a request for the message server to transmit the encrypted message to the decrypting end device. The decrypting end device uses the cryptographic context to decrypt the encrypted message and then presents the decrypted message to a user of the decrypting end device.

A hybrid wired and wireless architecture for a process control system is disclosed that includes hierarchical adaptability and optimization capabilities. The system is arranged in three tiers, the first including a number of wireless end devices exchanging packets of data and / or instructions with the distributed control system, where each wireless end device is associated with one or more meters, remote terminal units, diagnostic devices, pumps, valves, sensors, or tank level measuring devices. The second tier includes a plurality of wireless routers, each including a memory that stores a routing table and a processor that routes packets. The third tier includes a master wireless gateway device operably connected to receive packets from and transmit packets to the distributed control system. The processor of each of the wireless routers routes packets across the tiers between the end devices and the wireless gateway devices based on the stored routing table.

Multiple autonomous intelligent Remote Terminal Units (RTUs) are positioned on distribution lines in an electrical power grid. The intelligent RTUs are capable of performing advanced analytics on power flowing through the distribution lines, thus providing accurate real-time analysis of the power.

A remote monitoring and alerting system includes one or more remote terminal units and a central system, with both the central system and each remote terminal unit adapted to send and receive data across a communications network. Each remote terminal unit includes a processor and wireless transmitter in a compact arrangement that allows the unit to be placed conveniently in a housing associated with some remote device to be monitored. The central system includes a data collection and manipulation controller for receiving, processing, and storing data received from each remote terminal unit across the communications network. Both a user messaging controller and a user interface controller are also included in the central system. The user messaging controller transmits user messages through a suitable interface to one or more user designated devices in response to a remote terminal unit message received from the remote terminal unit. The user interface controller provides a user interface between a user of the remote monitoring and alerting system and the central system.

The invention discloses a province-city secondary system integrated comprehensive monitoring and process management system in power dispatching and an implementation method for the system. The system is designed on the basis of SOA (service-oriented architecture), a bottom layer is programmed by adopting standard C, a front end is constructed by applying a J2EE (java 2 enterprise edition) technology, and the system is a cluster-type integrated architecture system which is arranged on a plurality of servers; the system is characterized by comprising a real-time monitoring module and a management function module, wherein the real-time monitoring module is used for IT (information technology) monitoring, machine room environment monitoring and service data validating (RTU (remote terminal unit) and OCS (office communication server) monitoring); the management function module comprises IT asset management, operation and maintenance management and professional reports. The system and the implementation method have the beneficial effects that a comprehensive platform is realized, and the automatic monitoring situations can be displayed comprehensively; province-city two-level automatic system data sharing is realized, and valuable data information can be provided for operators on duty automatically; the problem that a closed-loop process is not formed in the conventional automatic internal management is solved.

The invention discloses a method for controlling a remote terminal, which comprises the following steps: step 1. a Windows client terminal is added into an enterprise domain, and a logon script executed when an enterprise domain user logs on an operation client terminal system is arranged on an enterprise domain server; step 2. the Window client terminal is subjected to function cutting for removing the functions or services without limiting the Windows client terminal and without functioning on the enterprise application processing; step 3. a remote management agent module is arranged at the Windows client terminal; step 4. a remote management device is arranged on a remote control server; and step 5. the Windows client is controlled from the remote control server. With the utilization of the method, the problems how an enterprise having substantial Windows operation system client terminals prevent the users of the client terminals from carrying out disallowed operation to the client terminals and the problem that the client terminals can be effectively managed and maintained are solved.

A head-end circuit comprises first and second continuous light sources, first and second modulators. The first and the second continuous light sources provide first and second optical signals respectively corresponding to first wavelength and second wavelength, which is different from the first wavelength. The first modulator modulates the first optical signal based on first clock signal to generate an optical clock signal. The second modulator modulates the second optical signal based on downlink data to generate optical downlink data with the carrier of the second optical signal. The optical clock signal and the optical down link data are outputted to a remote antenna unit via first fiber path.

Disclosed is a shared key management method for SCADA system in which a master terminal unit (MTU), a plurality of sub-master terminal units (sub-MTUs), and a plurality of remote terminal units (RTUs) are sequentially and hierarchically structured, comprising the steps of: generating shared keys of a group key in a tree structure by the MTU, the tree structure including a binary tree ranging from a root node corresponding to the MTU to intermediate nodes corresponding to the sub-MTUs; storing shared keys of descendant nodes and ancestor nodes of an intermediate node of a sub-MTU by the sub-MTU; and updating, upon updating of a shared key of an intermediate node, all shared keys of on-path nodes from the updated intermediate node to the root node, the shared keys of the on-path nodes being updated using their own shared keys and shared keys of off-path child nodes.

The present invention relates to a method, device and system allowing remote initiation of one or more applications. An extended subscriber sequence is dialed to instruct the remote terminal to initiate at least one remote application which is provided by the remote terminal for initiation and which is executable on the remote terminal device. The extended subscriber sequence comprises a subscriber number of the remote terminal to allow calling the remote terminal device and at least one subsequence. The subsequence is an application identifier which is associated with the remote application to be remotely initiated. The dialing of the extended subscriber sequence causes transmission of a call set-up request to the subscribed mobile communication network. The call set-up request comprises at least the extended subscriber sequence as a called party sequence, on the basis of which the mobile communication network identifies the addressed remote terminal and routes the communication thereto.