38results about How to "Improve alarm reliability" patented technology

A robust alarm system has an alarm controller adapted to input an alarm trigger and to generate at least one alarm drive signal in response. Alarm subsystems input the alarm drive signal and activate one or more of multiple alarms accordingly. A subsystem function signal provides feedback to the alarm controller as to alarm subsystem integrity. A malfunction indicator is output from the alarm controller in response to a failure within the alarm subsystems.

The invention provides a log analysis method and a log analysis device. The log analysis method comprises: in response to a log analysis command, obtaining log entries according to different categories, and storing the log entries in a first storage space, wherein the categories are determined by device attributes generating the log entries; acquiring the log entry from the first storage space, and analyzing key information with a standardized format from the log entry; storing the key information in a second storage space in the form of a data table; and obtaining target key information fromthe second storage space, performing statistics on the target key information and outputting a report. An alarm threshold value can be preset, and alarm information is output to the statistical form exceeding the threshold value; meanwhile, the feedback result returned by the user according to the alarm information is received, and the alarm threshold is automatically adjusted according to the feedback result, so that the purpose of improving the alarm credibility is achieved.

The invention discloses a vehicle-mounted anti-theft alarm system of an automobile. The vehicle-mounted anti-theft alarm system comprises a central controller, and the central controller is connected with a wireless alarm sensor, a camera module, an alarm module and a mobile terminal. According to the vehicle-mounted anti-theft alarm system, the multiple sensors are introduced, data of the sensors is processed through information fusion of the sensors, the reliability is improved, mistaken alarms and false alarms are prevented, and alarm reliability is improved; and the intelligent management alarm system integrates network communication, satellite positioning and real-time monitoring, the automobile can be monitored and tracked in real time, an owner conveniently locates and monitors the automobile, man-vehicle real-time communication is achieved, the real sense of anti-theft function is achieved, and various vehicle stealing behaviors of lawbreakers are effectively fought.

An alarm device includes: a wireless circuit section which wirelessly exchanges event signals with an other alarm device; an alert section which outputs an alarm; an operation section which accepts predetermined operations; a sensor section which issues an abnormal condition detection signal when an abnormal condition occurred is detected within a monitoring area; an abnormal condition monitoring section which, upon receiving the abnormal condition detection signal from the sensor section, outputs an abnormal condition alarm as a linkage source from the alert section, and transmits an event signal indicating an abnormal condition to the other alarm devices, and conversely, upon receiving an event signal indicating an abnormal condition from the other alarm device, outputs an abnormal condition alarm as a linkage destination from the alert section; a communication test transmission processing section which, at a predetermined timing, transmits an event signal indicating a communication test to the other alarm device and; a communication test reception processing section which, upon receiving an event signal indicating a communication test from the other alarm device, announces the reception status of this event signal.

The invention discloses a multifunctional luggage case burglar alarm and an antitheft method and belongs to the technical field of prevention of burglary. The luggage case burglar alarm utilizes combination of mechanical prevention of burglary and electronic alarm prevention of burglary and comprises an antitheft device, an antitheft controller and an antitheft remote control alarm. The antitheft device and the antitheft controller are installed in a luggage case, and the antitheft remote control alarm is arranged at the master and can transmit and receive a signal by a wireless mode. Under the control of the antitheft controller, the antitheft device can stop luggage case pulleys so that luggage case anti-skid effects are obtained and antitheft effects are obtained when burglary occurs. The antitheft method utilizing the luggage case burglar alarm can determine if burglary occurs according to a sensor signal and give an alarm. GPS positioning information is transmitted to the antitheft remote control alarm so that bidirectional alarming and positioning tracking are realized. The luggage case burglar alarm can monitor abundant information, realize alarming, prevention of burglary, and positioning tracking after burglary, solves the problem that the existing luggage case has a single antitheft function and an easily-broken antitheft unit, and improves antitheft reliability.

One anti-theft alarm for vehicle with autoamtic radio signal detection and its signal processing method is disclosed. The alarm consists of one bi-directional cipher responding ratio transmitting and receiving unit and one portable remote controller. Detection signal is sent out to make the remote controller possesses continuous radio receiving effect and intermittent powering mode of radio receiving circuit. The present invention solves the contraditional between the service life of battery in the remote controller and the radio signal receiving effect and this results in high reliability of the alarm.

The invention provides a smog alarm which solves the problem of spurious triggering caused by smoking of a smog alarm in the prior art. The smog alarm comprises smog detectors, a single chip and an alarm. The smog detectors are arranged at the positions of a lobby and a washroom, and output alarm signals when a smog value is overproof. The single chip is connected to the smog detectors, after the single chip receives the alarm signals, a timer is triggered to start timing, the alarm signals are maintained to the moment the timing time is up, and an excited signal is output. The alarm is connected to an output end of the single chip, and when the alarm receives the excited signal, alarm operation is conducted.

The invention discloses a water system fault wireless alarming device which comprises a signal acquiring unit, a programmable controller, a short message controller and a plurality of handheld communication devices, wherein the signal acquiring unit comprises a plurality of signal acquiring elements arranged on each device of the water system, the programmable controller is connected with the signal acquiring unit so as to receive a state signal transmitted from the signal acquiring unit and output a fault signal; an action program for arranging the logical relation between the state signal and the fault signal is prestored in the programmable controller; the short message controller is connected with the programmable controller so as to receive the fault signal transmitted from the programmable controller and send a short message with the content corresponding to that of the fault signal; and the plurality of handheld communication devices are accessed into a public mobile telecommunication network so as to receive the short message from the short message controller through the public mobile telecommunication network. The system fault wireless alarming device has the advantages of being simple in structure, high in alarming reliability and capable of directly improving an original control system.

The invention discloses a detection method and a gas alarm. The detection method is applied to the gas alarm. The gas alarm comprises a detection unit for receiving button operation. The method comprise: detecting and obtaining first button operation at a first moment; judging whether second button operation is detected within the preset time range starting from the first moment; if so, generating an alarm command based on the second button operation; and executing the alarm command and outputting an alarm signal. Therefore, the false alarm frequency due to mis-operation is reduced, and alarm reliability is improved.

The invention relates to an injection pump with a whole-process infusion safety detection and near-space detection structure. The injection pump comprises a rack, a motor and a syringe; the motor is connected with a screw rod through a speed reduction mechanism, the screw rod is matched with a clutch nut, the clutch nut is connected with a push rod, the push rod is connected with the syringe through a push head, the clutch nut is provided with a photoelectric coupler, and the rack is provided with light blocking pieces matched with the photoelectric coupler. The injection pump has the advantages that the novel structure formed by combining the photoelectric coupler and a set of light blocking pieces different in width and interval is adopted, the structure is simple, the reliability is high, and the cost is low; whether or not a transmission system of the injection pump loses efficacy can be monitored in the whole process, and the infusion safety is improved; the multi-position detection of the tail end is achieved, and the near-space alarming and infusion completion alarming reliability of the injection pump is improved.

The invention discloses a Trap community name format based on simple network management protocol. The simple network management protocol is called SNMP for short thereinafter and is applicable to SNMP v1/v2c. The Trap community name format is as follows: the actual community + eventId+ '@confirm'. Among which eventId marks the Trap information number of the Trap information and '@confirm' is the keyword to decide whether the Trap information needs affirming. The Trap information community name format of the invention saves the cost of the network management system in improving alarming reliability and enhances Trap information receiving reliability.

A civil air defense door posture detection device and a detection method. The device comprises an posture detection unit and a control unit which are integrated; the posture detection unit comprises aposture sensor, and the control unit comprises a processor, a memory, a signal input interface and a switching value signal interface; the posture sensor collects a real-time posture parameter electrical signal and transmits to the processor through the signal input interface, the memory stores original posture parameters, preset alarm parameters, real-time posture parameters, and corner-suspending state information parameters of a civil air defense door compared and judged by the processor, and transmits to the switching value signal interface for amplification, and all the parameters are converted into a switching value signal to control an external station or train signal system to send a corresponding control signal. The detection unit and the control unit of the device form an organic whole, the structure is simple, the impact on the appearance integrality of the civil air defense door is small, installation position restraints are avoided, the installation and replacement are convenient, the service life is long, real-time posture monitoring on the civil air defense door is realized, no monitoring dead zone exists, and the monitoring accuracy is high.

The invention discloses a double-end alarm device and an alarm method thereof and belongs to the field of alarm device technologies. The double-end alarm device comprises an alarm host, an alarm device body and a wired link, wherein the alarm host is connected with the alarm device body through the wired link. The double-end alarm device is characterized in that the alarm device body comprises a shell, a microcontroller, an alarm button, a battery, a signal detection module and a wireless communication module, the alarm button, the battery, the signal detection module and the wireless communication module are all connected with the microcontroller, the signal detection module is connected with the wired link, and the microcontroller, the battery, the signal detection module and the wireless communication module are sealed in the shell. According to the alarm method, an alarm link of the alarm host and an alarm link of the alarm device body are included. On the basis that the alarm device is connected and matched with an original alarm host system, the defect of one-end alarm of an alarm system in the prior art is overcome, and reliability is improved.

The invention comprises: a line type temperature sensor, and a main switch box and an assistant switch box both respectively connected to each end of the sensor; or two parallel-set line type temperature sensors, and a main switch box connected to one end of one senor and an assistant switch connected to the other end of the other sensor. The invention is used to make fire alarm.