摘要:
In a client-server environment, a method and system are disclosed for granting transparency to the compulsory gateway of an IP network versus client applications run by the end-users connected on the IP network. When client applications have to access, on request of the end-users, server applications beyond the compulsory gateway this latter acts on behalf of them to access the requested remote resources eventually, relaying data between client and server applications. This is achieved without requiring any personalization on client end thus, guarantees that since gateway is becoming transparent to client applications all improvements and modifications brought to the IP network actually fully benefit to all end-users.
摘要:
A data transmission system for exchanging packetized data between any IP host selected from a cluster of IP hosts, each host having at least an IP layer, a network layer, and a plurality of workstations coupled by an intermediary of an IP network. The IP hosts are coupled to the IP network via a layer 2 network such as a LAN interfacing the IP network by a set of routers and a network dispatcher that receives all incoming data flow and dispatches the data to the cluster of hosts. The data transmission system comprises at least a monitoring device included in the cluster of hosts where the monitoring device is operable to monitor the availability of candidate routers selected from the set of possible routers. The monitoring device also is operable for broadcasting router availability information to each host in the cluster of hosts via the network dispatcher.
摘要:
A method and system are disclosed for dynamically assigning, on a Local Area Network, through a mediator, a plurality of active routers to a plurality of hosts so as to handle hosts data packets destined to remote users not connected on the LAN. Because hosts know only the address of the mediator they must first go through it for being assigned a particular router. When receiving the first request, mediator selects one router among those of the routers that are active and informs the host which may then forward the first packet and all subsequent ones to the selected router. The same is done for each host connected on the LAN. After which mediator is free to reassess the router to host assignment any time if significant changes are observed such as the failure of a router, the removing or the addition of a router to the pool of routers or a drastic modification of the host generated traffic.
摘要:
A data transmission system and method for transmitting packetized data from an Internet Protocol (IP) host, having at least an IP layer and a network layer, to a plurality of workstations by the intermediary of an IP network, wherein the IP host is connected to the IP network via a layer 2 network interfacing the IP network with a set of routers. The IP host further includes a Multiple Address Resolution Protocol (MARP) layer between the IP layer and the network layer for selecting one of the set of routers in response to the next hop IP addresses provided by the IP layer to the MARP layer when a packet of data is be transmitted from the IP host to one of the workstations.
摘要:
A biometrically activated radio frequency identification (RFID) tag including a fingerprint detection matrix, an antenna control circuit, and a biometric identification chip. The fingerprint detection matrix acquires biometric data indicative of a user's identity and passes it to the biometric identification chip. The biometric identification chip compares the biometric data acquired by the fingerprint detection matrix to biometric data stored thereupon. The antenna control circuit activates the RFID tag selectively dependent upon the result of the comparison of the acquired and stored biometric data.
摘要:
Detecting whether an article has been loaded or unloaded for example from a ship by tracking the movements of a transducer such as an RFID tag attached to the article in space, and comparing the tracked movements with a trajectory envelope characterizing the movements associated with a load or unload action, and in the case where the movements of the article are found to comply with the trajectory envelope, registering the article as present in the predetermined volume.
摘要:
RFID tag and a system and method involving a plurality of RFID tags. Each RFID tag is attached to an object on which the presence of a predefined fluid is monitored. In a first state, (absence of the monitored fluid), the tag acts as a passive RFID tag, and the information it holds can be read with a proximity reader. This operation is performed when the RFID tag is attached to the object to be monitored. In a second state, whenever the monitored fluid appears on the tagged object, a fluid activated battery generates the electrical power which is used to power the RFID tag. The RFID tag then acts as an active RFID tag and starts to emit messages which can be received by a RFID reader.
摘要:
The present invention discloses a method, system and computer program embarked in a vehicle, for estimating traffic conditions based on positioning information exchanged with other vehicles using wireless communication. A method in accordance with an embodiment of the invention includes: receiving positioning information repeatedly broadcast by at least one vehicle, the positioning information for each vehicle including: information related to a current location of the vehicle; and information identifying the vehicle; calculating based on at least two successive locations of a same identified vehicle, a current speed and a current direction for the vehicle; and estimating current traffic conditions based on current location, speed and direction of identified vehicles.
摘要:
The present invention describes a RFID tag and a system and method involving a plurality of RFID tags. Each RFID tag is attached to an object (or to a structure or a person) on which the presence of a predefined fluid is monitored. In a first state, (absence of the monitored fluid), the tag is acting as a passive RFID tag, and the information it holds, (at least its identifier—ID), can be read with a proximity reader (a hand held or stationary/fixed reader). This operation is performed when the RFID tag is attached to the object (or person) to be monitored. At this stage a table associating tag ID, object name (or person name) and location (or any other information), may be built, and may be recorded so that information it contains is accessible by a control center. In a second state, whenever the monitored fluid appears on the tagged object, a fluid activated battery generates the electrical power which is used to power the RFID tag. The RFID tag then acts as an active RFID tag and starts to emit messages (an alert for instance) which can be received by a distant RFID reader. Alert messages include at least the tag ID but may comprise additional information like a name or a location.
摘要:
RFID tag and a system and method involving a plurality of RFID tags. Each RFID tag is attached to an object on which the presence of a predefined fluid is monitored. In a first state, (absence of the monitored fluid), the tag acts as a passive RFID tag, and the information it holds can be read with a proximity reader. This operation is performed when the RFID tag is attached to the object to be monitored. In a second state, whenever the monitored fluid appears on the tagged object, a fluid activated battery generates the electrical power which is used to power the RFID tag. The RFID tag then acts as an active RFID tag and starts to emit messages which can be received by a RFID reader.