519 results about "Heartbeat detection" patented technology

The disclosed invention uses two sensors to capture the heartbeat and environmental noises of an occupant of a vehicle or hospital bed. One of the sensors is placed on a seat or bed frame adjacent the occupant. A second sensor is placed remotely from the occupant, on a vehicle floor, or remote portion of the bed frame. A signal conditioning module is attached to the first and second sensors for detecting the heartbeat signal. Specialized software is used for processing the signal and decision making based upon the extracted heartbeat signal. The invention is capable of operating despite environmental noise and vibrations.

The invention provides a method used for maintaining connected heartbeat. For example, the method includes that heartbeat detection starting conditions are judged whether to be satisfied. If the heartbeat detection starting requirements are met, the heartbeat detection is carried out, thus a connected heartbeat period used for maintaining is obtained. Information containing the heartbeat period is delivered to a server, delivered heartbeat pack after the heartbeat period is adjusted according to the information by a receiving server, thus the receiving server is maintained to be connected with the server. The heartbeat detection is carried out when the heartbeat detection starting requirements are met on the client terminal, thus the connected heartbeat period used for maintaining is obtained. The information containing the heartbeat period is delivered to the server, thus the heartbeat period is adjusted according to the information by the server. The heartbeat pack is delivered to the client terminal by the fact that the heartbeat mechanism of the heartbeat period is adjusted in a dynamic mode, thus the purpose of maintaining long connection is achieved. Besides, the invention provides a device and a system used for maintaining connected heartbeat.

The disclosed invention uses two sensors to capture the heartbeat and environmental noises of an occupant of a vehicle or hospital bed. One of the sensors is placed on a seat or bed frame adjacent the occupant. A second sensor is placed remotely from the occupant, on a vehicle floor, or remote portion of the bed frame. A signal conditioning module is attached to the first and second sensors for detecting the heartbeat signal. Specialized software is used for processing the signal and decision making based upon the extracted heartbeat signal. The invention is capable of operating despite environmental noise and vibrations.

The invention provides a distributed message system, which comprises a server, a client side and a zookeeper cluster, wherein the server comprises a server communication unit which is used for transmitting the starting information of a server progress to the zookeeper cluster; the zookeeper cluster comprises a node management unit which is used for creating a corresponding sub-node for the started server progress on the created root node, and the sub-node is a temporary node; the client side comprises a client side communication unit and a judgment unit, wherein the client side communication unit is used for acquiring the creation situation of the sub-node from the zookeeper cluster; and the judgment unit is used for judging the current usable service of the server according to the creation situation of the sub-node. The invention also correspondently provides a service status detection method of the distributed message system. Due to the adoption of the technical scheme of the invention, a highly available communication platform based on the zookeeper is established, so that the resource consumption of the server for the heartbeat detection can be reduced, and the vast expenditure problem of the management caused by the increased service can be fundamentally solved.

The invention discloses an off-line available software license centralized security authentication system based on cloud computation, comprising an internetwork composed of a centralized authentication server, a proxy authentication server and a client. The system is characterized in that the centralized authentication server is responsible for producing an authorization certificate, and granting the authorization certificate to the proxy authentication server or the client; the proxy authentication server is responsible for accepting the proxy authentication authorization of the centralized authentication server, and acts on behalf of the centralized authentication server to execute an off-line authorization service for the client; in off-line condition, the client sends heartbeat detection information to a proxy authorization service program of the proxy authentication server to perform proxy authentication; or, in on-line condition, the client and the centralized authentication server performs heartbeat detection to check the validity of the authorization certificate. The system simultaneously supports off-line authentication, proxy authentication and on-line authentication.

The invention discloses a heartbeat testing method, applied in a network device with service net mouth, comprising that: the network device periodically transmits heartbeat information to a testing opposite terminal through a heartbeat testing port, receives heartbeat response returned by the testing opposite terminal, selects a service net mouth free of service, when the heartbeat testing terminal does not receive the heartbeat response of the testing opposite terminal, transmits the heartbeat information to the testing opposite terminal through selected service net mouth; it is judged that, whether the selected service net mouth receives the heartbeat response of the testing opposite terminal, if true, determining the test opposite terminal is normal; otherwise, determining the testing opposite terminal. The invention also discloses a heartbeat testing device. According to the invention, judging correct degree of the tested state is advanced.

An embodiment of the invention discloses a heartbeat package control method for an application program. The method comprises the steps of: monitoring an operational state of the application program; when the application program is in a foreground operation state, indicating the application program to send a heartbeat detection packet to a server by a first time interval; and when the application program is in a background operation state, indicating the application program to send the heartbeat detection packet to the server by a second time interval, wherein the second time interval is greater than the first time interval. The embodiment of the invention further discloses a heartbeat packet control apparatus for the application program. With the adoption of the heartbeat packet control method and apparatus, the adaptability of the application program to a network environment is improved.

The invention discloses a heartbeat detection message sending method, which comprises the following steps: judging whether the corresponding data flow rate exists at a client or not by accession equipment; sending a heartbeat detection message to the client by the accession equipment if the corresponding data flow rate does not exist at the client; and determining that the heartbeat detection message does not need to be sent to the client by the accession equipment if the corresponding data flow rate exists at the client. In the invention, the sending times of the heartbeat detection message are reduced, the performance of the accession equipment is improved, and the waste of the network bandwidth is reduced.

A cardiac signal processing apparatus includes: a unit for acquiring, from a heartbeat sensor, cardiac signals relating to heartbeats of a subject; a low-pass filter for allowing passage of those cardiac signals having a first predetermined frequency or lower, among the cardiac signals; higher harmonic noise acquisition unit for acquiring harmonic signals of low-frequency noise by performing high frequency extrapolation on the signals output from the low-pass filter; a high-pass filter for allowing passage of those cardiac signals having a second predetermined frequency or higher, among the cardiac signals; and higher harmonic noise removal unit for removing the harmonic signals of low-frequency noise from the signals output from the high-pass filter. It is thus made possible to remove noise from the cardiac signals and to obtain desirable heartbeat detection characteristics.

The invention provides a method for designing a multi-control storage system. According to the multi-control storage system, the faults of controllers are judged according to heartbeat detection based on Ethernet and message delivery detection based on Infiniband connection; according to the multi-control storage system with the N controllers, each controller is required to establish heartbeat connection and Infiniband connection with other N-1 controllers; the Infiniband connection is also used for the transmission of mirrored data and the transmission of MPIO (Multipath Input / Output) data; a multi-protocol support module is arranged in the multi-control storage system; Luns (Logic Unit Numbers) and a host are managed through the utilization of uniform management configuration interfaces; users can be connected with any controller through Ethernet exchangers to manage the system; controller software is responsible for providing a uniform management view to the users; and application client sides are connected to a high-end disk array through Ethernet, FC (Fiber Channel) network and IB (Intelligent Building) network to pay a data read-and-write visit to exported LUNs, so that the design of the multi-control storage system is realized.

The invention discloses a multi-copy storage method and a multi-copy storage system for a distributed database system, and belongs to the field of computer software. The multi-copy storage system comprises a main Master node, a standby Master node, a plurality of storage nodes and a connection network. The multi-copy storage method includes steps of 1, storing data in different data pieces; 2, only allowing a user to operate the data in a primary version, and enabling the multi-copy storage system to synchronize change of the data to various copies in real time and guarantee the atomicity; 3, enabling the multi-copy storage system to detect survival conditions of the nodes via synchronous heartbeat detection, and enabling a main Master host to instantly select an available copy to replace the primary version when a certain storage node of the data in the primary version dies; 4, enabling the multi-copy storage system to carry out detection and repair operation for the storage copies regularly, and migrating the data pieces with excessively low quantities of copies to other available storage nodes by means of local storage migration. A main storage model and a standby storage model are adopted for each data piece, and the copies are of completely identical logical structures and are distributed on different physical storage nodes. The multi-copy storage method and the multi-copy storage system have the advantages that the integrity and the availability of the data are protected against the death of optional nodes of the system.

The invention discloses a heartbeat detection method based on a cuff device, which comprise the following steps of: S1, collecting electrocardio-signals and non-physical signals of a moving human body, the non-physical signals comprising acceleration signals, posture signals and geographic location signals of a human body, and wherein utilizing electrocardio-electrodes with plurality of passages to collect electrocardio-signals; S2, extracting the heart clap template of a moving human body; S3, carrying out R-wave extraction of each passage by using the collected electrocardio-signals, the non-physical signals and the heart clap template to obtain a R-wave sequence; S4, and carrying out phase detection to the electrocardio-signals of each passage to obtain the phase differences of each passage with time change because of the position of the electrodes, obtaining the RR interphase sequence according to the information of the phase differences so as to obtain heartbeat signals. The method has the advantages of high accuracy and strong noise removing capacity.

The invention belongs to the technical field for using common wireless equipment to achieve perception and particularly relates to a non-invasive breath and heartbeat detection implementation method based on CSI (channel state information) signal strength in WiFi. By the method based on channel state analysis, non-invasive human health monitoring is achieved. The method includes: a wireless network card acquires one kind of CSI from each received data packet, Fourier transformation is performed on the CSI, breath and heartbeat signal frequency domain information is separated from the CSI by using the difference between breath frequency and heartbeat frequency, inverse Fourier transformation is used to extract the time domain information of each of the breath and heartbeat signal frequency domain information, and smoothing treatment is performed on the time domain information to allow breath and heartbeat signal data to be visual; meanwhile, the heartbeat signals are compared with an arrhythmia database of Massachusetts Institute of Technology in a curve manner, and a user is reminded if abnormality is discovered. The method is widely applicable to family medical monitoring.

The invention discloses a shared storage message queue-based implementation method for high availability of virtual machines and relates to the field of cloud computing. The shared storage message queue-based implementation method for the high availability of the virtual machines comprises the following steps: initializing a piece of contiguous space on shared storage by a server program to serve as a logical volume; distributing a plurality of contiguous sectors from the logical volume to serve as a sector pool of a client program; acquiring the configuration information of the sector pool and the number of a virtual machine, of which the high availability is enabled, by the client program; sending a heartbeat message by the client program, and updating the timestamp of a virtual machine control block maintained by the client program; receiving the heartbeat message by the server program, and updating the timestamp of the virtual machine control block maintained by the server program by utilizing the timestamp carried in the heartbeat message. According to the shared storage message queue-based implementation method disclosed by the invention, the unnecessary stop time of the virtual machines is avoided; system resource consumption is low by adopting a heartbeat detection mechanism; the performance is high; the service life of the disk of the shared storage is prolonged.

An embodiment of the invention discloses a distributed heartbeat detection method used for improving efficiency in internode fault detection. The method includes: a central node generates one corresponding heartbeat view for each data node according to topological structure of a node system, the heartbeat view of any data node is used for marking heartbeat detection relation formed by the data node with other different data nodes, each heartbeat view is transmitted to the corresponding data node, and accordingly the corresponding data node sends out a heartbeat message according to the heartbeat view.

The invention provides downtime recovery method and system, relates to the communication field, and solves the problem that the working efficiency of the system is low because the requirement for fast system failure response can not be satisfied by manual detection. The method comprises the following steps: a monitoring server periodically and automatically sends heartbeat detection messages to a plurality of detection servers in an intranet according to the preset intranet heartbeat time; the monitoring server receives heartbeat detection results responding to the heartbeat detection messages and returned by the detection servers in the intranet; and when the heartbeat detection result returned by the detection server shows that the network of the detection server is down, the monitoring server sends a power supply switch-off and re-start command to the detection server which is down. The technical scheme provided by the invention is suitable for a multi-server network, and achieves automatic and efficient downtime detection and recovery.

The invention relates to a remote control system and method of a car. The remote control system comprises a network server background, car-mounted devices and mobile phones. The remote control method comprises the following steps that the same account is at least bound with one intelligent mobile phone and one car-mounted device for abutting connection, after the car-mounted device and the intelligent mobile phone of the same account are detected to have logged in simultaneously, the network server background builds corresponding virtual circuit connection with the car-mounted device and the intelligent mobile phone respectively, and then heartbeat detection is carried out regularly. A user starts a car remote control application on the mobile phone and inputs a particular monitoring control command, and after the control authority is verified, the monitoring control command is pushed to the car-mounted device through the virtual circuit connection and the network server background. The car-mounted device receives and executes the monitoring control command, and pushes a controlling result or feedback information to the intelligent mobile phone through the virtual circuit connection and the network server background. The remote control system and method and the car are in real time, safe, reliable and convenient to operate.

The invention discloses a disaster recovery method and system. The method comprises the steps that a main client side and / or a standby client side send / sends heartbeat detection information to a DNS main server at regular time; if the main client side and / or the standby client side sending the heartbeat detection information does not receive the heartbeat responses of the DNS main server in the preset time, the DNS main server is judged to be in the abnormal state; According to a prestored usable DNS standby server list, the main client side and / or the standby client side sending the heartbeat detection information selects a DNS standby server with the high priority, and sends service requests to the selected DNS standby server, and therefore the selected DNS standby server replaces the DNS main server which is in the abnormal state to work. According to the disaster recovery method and system, the main client side and / or the standby client side can be used for judging whether the DNS main server is in the normal state or not, the standby DNS standby server is started when the DNS main server is in the abnormal state, and mutual disaster recovery among the DNS main server, the DNS standby server, the main client side and the standby client side is achieved.

The invention discloses a software license dynamic authorization management method and system based on a local area network and relates to the field of license dynamic authorization in the local network. Network sharing of a license is achieved. The software license dynamic authorization management system comprises a database, a license generating server, a license authorization management server and clients. Concurrent authorization is achieved through an epoll technology; license recycling of invalid networks is achieved through a heartbeat detection technology; compared with a traditional method, the authorization management method and system provide efficient and high-quality authorization services.

The invention provides a multimachine hot standby load balance system for a computer. In the system, link aggregation of a plurality of load balance processing modules is realized by adopting trunking; a single Internet protocol (IP) module integrates the plurality of load balance processing modules into a single inlet at the rear end; main control standby is realized by the adjacent load balance processing module so as to integrally form an annular main standby; states of the load balance processing modules are detected by heartbeat detection; when one load balance processing module fails, the adjacent load balance processing module takes over a task of the failed load balance processing module and monitors a load condition of an application server in real time; requests from a client can be automatically distributed according to a set scheduling mode; faults of servers in a server pool can be shielded automatically, non-interruption and high usability of service can be realized; system resources can be used fully; and the property of a blade server can be developed to the maximum extent.

The invention relates to a method for keeping high availability of an Oracle database service, and discloses an implementation method for keeping the high availability of the Oracle database service. The method comprises the following steps of: distributing virtual Internet protocols (IP) for database nodes; and performing heartbeat detection on the database nodes, judging whether a master database node and a slave database node are alive, when the master database node cannot be accessed, automatically drifting the virtual IP to the slave database node, and switching the identity of the slave database node to be the identity of master database nodes. The invention also discloses a system for keeping the high availability of the Oracle database service. The method and the system are specifically suitable for the DATAGUARD characteristic of the Oracle database; due to combined matching with open source software DRBD and Keepalived, in switchover (planned switchover and lossless switchover) or failover (non-planned switchover and lossy switchover), on the premise that data are not lost, master to slave switching of the database can be realized; and the high availability of the database service can be kept.

The invention provides a heartbeat detection method and network equipment. The method comprises that: when transmitting a heartbeat request message to detected equipment, detection equipment judges whether a sliding window with a given window length has a pane storing a response identifier or not, wherein the response identifier is acquired from a first heartbeat response message returned by the detected equipment, and is stored in a corresponding pane; if the sliding window with the given window length is judged to have the pane storing the response identifier, the detection equipment judgesthat the detected equipment is not crashed, simultaneously transits the heartbeat request message carrying a timestamp to the detected equipment, forwards slides the sliding window by the pane, and stores the timestamp into the pane obtained by the sliding; and if the sliding window with the given window length is judged not to have the pane storing the response identifier, the detection equipment judges the detected equipment is crashed. By the technical scheme provided by the invention, the problem in the prior art that the detection equipment erroneously judges the working state of the detected equipment due to the transmission delay or loss of the heartbeat request message or the heartbeat response message can be solved, and the accuracy of judging the working state of the detected equipment is improved.

The invention discloses a banked maintenance system, which comprises the following parts: network switch-in mode, business disposal veneer, route and alternate veneer. The banked maintaining method comprises the following steps: selecting network segment according parameter through route; judging whether the conversation is established; sending request to business disposal veneer if yes; building new conversation if not; building connection; sending request to business disposal veneer; disposing the business disposal veneer in the alternate veneer synchronously. The invention also provides accident switching method, which is characterized by the following: proceeding heartbeat detection for business disposal veneer and alternate veneer through route; switching the request into alternate veneer when detecting the interrupted heartbeat; disposing the request through alternate veneer.

The unit includes HH-OP to interexchage data of platforms in communication system, interruption interface and abnormal trigger device to process interrupting application and abnormal trigger signal, HA-OA to monitor local task and line operation and to carry out heartbeat detection, HA-ARB cosisting of platform decision device to decide abnormal trigger signal that can not be processed by HA-OP, task decision device to decide to switch or restart as per detected result of HA-OA. The present invention provides hardware redundant resource and handling method of data and state consistancy at standby time of software management redundance to realize HA requirement of telecommunication system.

The present invention discloses a method and system for bidirectional detection of connection, wherein in the method: a service terminal and a client terminal respectively perfume heartbeat detection for the connection between the service terminal and the client terminal; during a heartbeat detection flow transmitted by the client terminal, the client terminal and the user terminal mark the transmitted heartbeat detection flow information according to the transmitting sequence; the client terminal judges whether the heartbeat detection response is the response for the last heartbeat detection requirement transmitted by the client terminal according to the identification in the received heartbeat detection response. The method and system of the present invention can improve the test performance for connection, and detect whether the connection is normal or not in time.

The invention discloses an information push method and system and mobile terminals. The system comprises a server and multiple mobile terminals. The method comprises the following steps: a first step is that long connection between the mobile terminals and the server is cut off, and a power-saving push pattern is entered; a second step is that the server pushes information to the mobile terminals in the power-saving push pattern in a short message protocol packet mode; a third step is that the mobile terminals analyze the information and establish data connection with the server. According to the information push method and system and the mobile terminals, TCP / IP long connection push is combined with PPSP push, the defect that electricity and data flow are consumed due to the fact that the mobile terminals are not used for a long time or long-time network long connection is maintained at night or other idle time periods for sending a heartbeat detection packet is avoided, power consumption of the mobile terminals is lowered, and the standby time and the conversation time of the mobile terminals are prolonged. Moreover, more stable services also can be obtained based on an information push technology in a PPSP pattern.

The invention provides a virtual machine system used for providing network service. The virtual machine system used for providing the network service comprises a first physical machine and a second physical machine. The first physical machine comprises a first virtual machine and the second physical machine comprises a second virtual machine. The first virtual machine and the second virtual machine both comprise internet protocol (IP) configuration devices, service providing devices and heartbeat detection devices, wherein each IP configuration device is used for setting an external IP address of the virtual machine which the IP configuration device is arranged on, each service providing device is used for providing the network service for external visitors when the virtual machine which the service providing device is arranged on has the external IP address, and the heartbeat detection devices are used for mutual communication to determine whether the virtual machine which has the current external IP address runs abnormally or not. If the virtual machine which has the current external IP address runs abnormally, the IP configuration device of the virtual machine which does not have the external IP address is triggered to operate. Due to the method, the virtual machine system used for providing the network service is capable of achieving the purpose of proving the reliable network service to outside by utilizing the virtual machines.

The invention discloses an application server. The application server comprises a memory, a processor, and a heartbeat detection system which is arranged on the memory and can run on the processor. When the heartbeat detection system is executed by the processor, the following steps are implemented: when a heartbeat packet transmitted by a mobile terminal client is received, inquiring whether heartbeat detection records of the mobile terminal client are stored in an application server memory being in a long connection with the mobile terminal client or not; if the heartbeat detection records are stored, updating the heartbeat detection records according to the received heartbeat packet; polling the heartbeat detection records stored in the application server memory at a preset frequency, and determining whether abnormal heartbeat detection records exist in the heartbeat detection records or not; and if so, deleting the abnormal heartbeat detection records, and breaking the long connection between the mobile terminal client corresponding to the abnormal heartbeat detection records and an application server. Through adoption of the application server, the long connection can be managed more flexibly.

A wrist-worn monitor for heartbeat detection includes a detecting device provided on a belt. The detecting device comprises a first detecting element on one side and a pair of second detecting elements on another side. When the belt is worn on a wrist of a user, the first detecting element will be in touch with a wrist of a user while the user presses the second detecting elements with two fingers of another hand to get the reading of his / her heartbeat.

The invention discloses a network protocol address feedback method and a domain name resolution server. The method comprises the following processing steps: receiving a domain name inquiry request which is sent by a client and carries domain name information, and obtaining one or more network protocol addresses corresponding to the domain name information; checking the health of one more network protocol addresses and obtaining one or more healthy network protocol addresses; and obtaining a final network protocol address from one or more healthy network protocol addresses by adopting load balancing algorithm, and feeding back the final network protocol address to the client. Through the processing, the development amount of heartbeat detection and recurrent selection strategies on a DNS client can be effectively saved and the load balancing of all servers in inquiry records is realized.