Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1103 results about "Heartbeat" patented technology

In computer science, a heartbeat is a periodic signal generated by hardware or software to indicate normal operation or to synchronize other parts of a computer system. Usually a heartbeat is sent between machines at a regular interval in the order of seconds. If the endpoint does not receive a heartbeat for a time—usually a few heartbeat intervals—the machine that should have sent the heartbeat is assumed to have failed.

FMCW broadband life detection radar breathing and heartbeat signal extraction algorithm

The present invention provides an FMCW broadband life detection radar breathing and heartbeat signal extraction algorithm. Compared with the prior art, the algorithm has the advantages that breathing and heartbeat signals of multiple persons can be obtained simultaneously, the boundaries and energy of reconstructed breathing signals can be very well kept by using Coiflets wavelets compared with traditional frequency-domain filtering, especially processing conducted on short-time signals is obvious, higher harmonics of the breathing signals are filtered out by adopting a double-coefficient based LMS self-adaptive filtering algorithm, and the self-adaptive filtering algorithm does not need additional reference signals. Due to the fact that a degressive search step size coefficient is adopted in the algorithm, the heartbeat signals can be better retained while breathing signal harmonics are filtered out, the heartbeat signals can be rapidly converged by selecting the appropriate search step size coefficient and adopting the double-coefficient based LMS self-adaptive filtering algorithm, and smaller stable imbalance is kept in longer time, so that finally separated heartbeat signals are more accurate in frequency component within a long time.
Owner:ARMY MEDICAL UNIV

Suicide among well-mannered cluster nodes experiencing heartbeat failure

Methods for re-configuring a cluster computer system of multiple or more nodes when the cluster experiences communications failure. First and second nodes of the cluster have respective channel controllers. A SCSI channel and the controllers communicatively connect the multiple nodes. When a node becomes aware of a possible communications failure, the node attempts to determine the authenticity the failure and responds according to the determined authenticity. According to one method, a first node detects heartbeat node-to-node communications failure on the channel and then tests a physical drive on the channel. If the testing is successful, the node kills the other node. If the testing is unsuccessful, the first node commits suicide. In one embodiment, the coupling includes multiple channels communicatively coupling the first and second nodes and the first node selecting one of the channels for node-to-node communications. In this environment, choosing a physical drive involves testing node-to-node communications on another of the channels if no physical drive is online on the channel (and terminating the re-configuring method). If a drive is available, the first node uses the first physical drive online on the channel for testing. In another method, the second node initially detects communications failure and communicates that by attempting to negotiate wih the first node for a new configuration of the computer system. The first node tests a physical drive in response and negotiates with the second node if the testing was successful. If the testing was unsuccessful, the first node commits suicide.
Owner:XYRATEX TECH LTD

Multi-life monitoring system based on FMCW (frequency modulated continuous wave) wideband radar

The invention discloses a multi-life monitoring system based on FMCW (frequency modulated continuous wave) wideband radar. The multi-life monitoring system comprises a transmitting unit, a receiving unit, a signal processing unit and a wireless signal transmitting unit; an FMCW signal is transmitted from the FMCW wideband radar to no less than one human object by virtue of the transmitting unit; a reflected echo signal is received by virtue of the receiving unit; the echo signal, which carries vital sign signals, is processed by virtue of the signal processing unit; the vital sign signals are demodulated and separated from the echo signal; and the vital sign signals are transmitted to a computer terminal by virtue of the wireless signal transmitting unit, so that respiration and heartbeat signals of detected persons are monitored under the condition of avoiding contact with the bodies of the detected persons. With the implementation of the multi-life monitoring system disclosed by the invention, under the circumstance of avoiding the contact of any electrodes and sensors with patients, the respiration and heart rates of the plurality of patients can be simultaneously monitored by a long time at a relatively long distance, so that the detected persons can feel more easily and comfortably; the multi-life monitoring system can be widely applied to clinical dynamic monitoring and sleep quality monitoring of patients with severe burn and the like; and meanwhile, the multi-life monitoring system can be also applied to researches in the field of psychology.
Owner:THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA

Network human face recognition system with intelligent management system and recognition method thereof

The invention provides a network human face recognition system with an intelligent management system, the system comprises a system management module and a plurality of recognition modules which are respectively in network connection with the system management module, wherein the system management module comprises a network data server and a management terminal which is in circuit connection withthe network data server; and the recognition modules comprise recognition control terminals and a plurality of electric control door locks, a plurality of acquisition modules and clients which are respectively in circuit connection with the recognition control terminals; and the clients comprise the functions of access control, attendance management and intelligent monitoring. The system management module can be connected with the plurality of the recognition modules and simultaneously control the plurality of the electric control door locks and the acquisition modules, thereby improving the scalability; the clients are arranged in the recognition modules, thereby proving more functional modules and improving the scalability of the system; and the recognition control terminals adopt the heartbeat mechanism, thereby realizing the periodic synchronous information interaction between the system management module and the recognition modules and ensuring the stability of the operation of the system.
Owner:SHANGHAI KANKAN INTELLIGENT TECH CO LTD

Connection keeping method, device, mobile terminal and data transmitting method

The invention discloses a connection keeping method, a device of an application program client and an applicable server and a method which comprises a mobile terminal and a mobile communication network of the device for transmitting data to a mobile terminal. The data transmitting method comprises that the mobile terminal obtains a reference value of a heartbeat period from the mobile communication network; the mobile terminal determines an actual value of the heartbeat period based on the reference value of the heartbeat period; and the mobile terminal triggers a registered application program client to send heartbeat data packages to the corresponding applicable server based on the actual value of the heartbeat period. According to the invention, a plurality of application program clients resided on the mobile terminal are triggered uniformly and dispatches the heartbeat through the mobile terminal. The heartbeat data packages are sent to the respective applicable server at the same time and in the same time intervals, so that the energy consumption of the mobile terminal and the consumption of the occupancy of wireless source caused by frequent asynchronous sending of heartbeat packages by the plurality of application program clients are effectively reduced.
Owner:CHINA MOBILE COMM GRP CO LTD

Method for monitoring working state of antenna of 4G (Fourth-Generation) base station in real time

InactiveCN103281713AComprehensive monitoring of working statusEfficient notificationWireless communicationData informationSmart surveillance
The invention relates to a method for monitoring a working state of an antenna of a 4G (Fourth-Generation) base station in real time. Intelligent monitoring equipment is additionally arranged at the position of a transmitting antenna; when the antenna normally works, a sensor is adopted to acquire corresponding antenna working state data information, the antenna working state data information is transmitted to a data processing part of the intelligent monitoring equipment to be subjected to necessary filtering shaping and then is converted into digital information, judgment is made after the data is analyzed, and whether the antenna normally works is detected; if the antenna is normal, the intelligent monitoring equipment does not respond, and until a timer T arrives, the intelligent monitoring equipment automatically sends a heartbeat packet to a maintenance terminal to prove that the intelligent monitoring equipment works on line normally; and if the antenna is abnormal, the intelligent monitoring equipment immediately transmits parameters of the antenna abnormity and a geographic position of the antenna of the base station to the maintenance terminal and finds out the abnormal base station and the reasons that the abnormal base station possibly generates abnormity. According to the invention, the working condition of the antenna of the base station can be monitored by adopting a more automatic mode, and intelligent monitoring on the working condition of the antenna is implemented.
Owner:JIANGSU HENGXIN TECH CO LTD

Method for preventing in-car terminal from being detached

The invention relates to an anti-detachment technology field, in particular to a method for preventing an in-car terminal from being detached. The method includes: 1) stipulating a fixed password between the in-car terminal and a vehicle ECU; 2) generating a random password R by the vehicle ECU, joining the fixed password of the vehicle ECU with the random password R, generating an MD5 encrypted value which is a dynamic password A, sending a heartbeat interactive request to the in-car terminal by the vehicle ECU through a CAN bus, wherein a frame of the heartbeat interactive request contains the random password R; 3) after a CAN transceiver of the in-car terminal receives the heartbeat interactive request of the vehicle ECU, extracting the random password R, joining the fixed password of the in-car terminal with the random password R by the in-car terminal, generating an MD5 encrypted value which is a dynamic password B, and sending the dynamic password B to the vehicle ECU through the CAN transceiver, wherein the dynamic password B is used as a heartbeat frame; 4) after the vehicle ECU receives the heartbeat frame, comparing the dynamic password A with the dynamic password B, and if the dynamic password A coincides with the dynamic password B, determining that the in-car terminal is normal, otherwise determining that the in-car terminal is detached. The method has a characteristic of high safety.
Owner:XIAMEN YAXON NETWORKS CO LTD

Utilization management method and system of electronic price tags

The invention provides a utilization management method and system of electronic price tags. The method comprises the following steps: when electronic price tags, which are not networked, are at an active state, broadcasting a self heartbeat data packet; after a base station receives the heartbeat data packet of the electronic price tags, judging whether the base station has display information ofcommodities corresponding to the electronic price tags or not; if so, uploading the heartbeat data packet of the electronic price tags, and signal strength information between the electronic price tags and the base station to a server through the base station; selecting one base station from at least one base station as a target base station by the server according to the heartbeat data packet uploaded by at least one base station and the signal strength information between the electronic price tags and at least one base station, and networking the electronic price tags; sending the display information of the commodities corresponding to the electronic price tags to the electronic price tags through the target base station. According to the utilization management method and system of the electronic price tags, the data transmission efficiency of the electronic price tags can be improved under the condition that the utilization amount of the electronic price tags is relatively great, sothat the display information of the commodities can be more rapidly transmitted to the electronic price tags.
Owner:上海保资智能科技有限公司

Redundancy switching method among redundancy process control stations in distributed control system

The invention discloses a redundancy switching method among redundancy process control stations in a distributed control system, comprising the following steps of: implementing data synchronism among the redundancy process control stations via a redundancy network; respectively connecting each process control station and each engineer station to a switchboard via a network; sending heartbeat signals to the process control station in a standby state by the process control station in an activate state; setting up a system variable by the process control station; modifying the data of the system variable by the process control station in the activate state whenever executing a control logic; synchronizing the data of the system variable to the process control station in the standby state via a private network by the process control station in the activate state when synchronizing data to the process control station in the standby state; and judging whether the data of the variable in the synchronized data is the same with the last received one or not by the process control station in the standby state and judging whether the process control station in the standby state is activated. Through the method disclosed by the invention, the reliability of switching process control stations is improved.
Owner:NANJING GUODIAN NANZI WEIMEIDE AUTOMATION CO LTD

Buffer synchronization mechanism between double storage controllers

The invention discloses a buffer synchronization mechanism between double storage controllers, and belongs to the technical field of double storage controllers. The buffer synchronization mechanism solves the problem of influence on the controller processing efficiency due to the additional increase of expenditure of standby controller buffer synchronization during the conventional buffer synchronization realization. The buffer synchronization mechanism between the double storage controllers has the technical scheme that the double storage controllers are connected through a 10 gigabit network; the mutual communication is completed through a heartbeat process and a buffer synchronization process; the operation is concretely completed by using a socket of a kernel layer; the realization of the buffer synchronization function comprises the buffer synchronization process realization and the heartbeat process realization; the buffer synchronization process is divided into an active-standby work mode; in the active work mode, the initiation of the buffer synchronization process is triggered through a reading-writing request and a reading-writing abnormity in the active work mode; in the standby work mode, the heartbeat process is combined for fault detection, and then, the operation is transferred to the fault take-over thread handling; and a buffer synchronous communication protocol data packet comprises the command type, the logic disc address, the physical equipment number, the data size and the data and reading-writing return value.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD

Management system and management method on basis of cloud service

The invention provides a management system and a management method on the basis of cloud service. The management system comprises a cloud server, a central server and a cloud client. The could server comprises n service nodes, a data management module and a node control module and is used for mounting user data, encoding and transmitting video streams and backwardly transmitting, receiving and storing the user data; the central server comprises an identity authentication module and a node management module and is used for authenticating identities, receiving heartbeat signals from the cloud client, monitoring each corresponding working state of the cloud client and managing various nodes of the cloud server; the cloud client is connected with a certain service node of the cloud server via the internet by the central server which is used as a resource scheduling and management medium, and information data can be transmitted between the cloud client and the certain service node of the cloud server via the internet by the central server. The management system and the management method have the advantages that loss of a cpu (central processing unit) and internal memory can be reduced by means of online reconnection, sleep and awake and closing operation on the service nodes, the single-user cost can be effectively reduced, and the use safety and the use confidentiality of users can be improved.
Owner:北京千禧光年信息技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products