66 results about "Protection procedure" patented technology

A relay device and a communication device capable of realizing the contents protection procedure between devices that are not connected to the same network are disclosed. A relay device and a communication device are so configured that between a device/service/sub-unit on the second network and a device on the first network which are a pair that is carrying out transmission or reception of contents to be protected, a device on the first network or a device/service/sub-unit on the second network can carry out the contents protection procedure while recognizing the target of the contents protection procedure as the relay device, so that there is no need for a device on the first network or a device/service/sub-unit on the second network to account for the other network that is connected via the relay device.

A scheme for realizing a contents protection procedure between devices that are not connected to the same network, in a system where the IEEE 1394 buses are connected together through a 1394 bridge or a system where the IEEE 1394 buses are connected together through another radio network, is disclosed. A network connection device notifies information regarding a transmission node on the first IEEE 1394 bus to a reception node on the second IEEE 1394 bus, so that the reception node can carry out the authentication and key exchange procedure directly with the transmission node on a different network.

The invention discloses an inter-phase short circuit and single-phase grounding comprehensive protection method for a small-current grounding power system. Firstly, a protection device collects three phases of current and zero-sequence voltage and calculates break variables of each phase of current and the zero-sequence voltage in real time; then, whether the break variables of the phases of current exceed a threshold is detected, if the break variables of the phases of current exceed the definite value, it is judged that an inter-phase short circuit fault exists, and a stage current protection procedure is started; otherwise, whether the break variable of the zero-sequence voltage exceeds the threshold is detected, if the break variable of the zero-sequence voltage exceeds the definite value, it is judged that a single-phase grounding fault exists, and a single-phase grounding line selection procedure is started. The method integrates an inter-phase short circuit protection function and a small-current grounding line selection function, tripping is quickly and reliably conducted when the inter-phase short circuit fault happens, and a line can be accurately selected and a warning signal is sent out when single-phase grounding happens to the small-current grounding system. When the protection method is used, people only need to configure one inter-phase short circuit and single-phase grounding comprehensive protection device at the front end of each led-out line and do not need to arrange a small-current grounding line selection device independently any more, and protection configuration is effectively simplified.

A battery ground fault detecting circuit applied to an uninterruptible power system is disclosed. The uninterruptible power system has a controller and is connected to a battery box having a ground terminal. The battery ground fault detecting circuit is employed for detecting whether a ground fault is occurred in a battery mounted in the battery box, so that the controller can execute a corresponding protection procedure. The battery ground fault detecting circuit includes a detector electrically connected to the ground terminal of the battery box for detecting a ground current signal outputted from the ground terminal, a signal processor electrically connected to the detector for filtering and amplifying the ground current signal, a peak value comparator electrically connected to the signal processor and having a predetermined peak value for comparing the filtered and amplified ground current signal with the predetermined peak value so as to generate an AC control signal when the peak value of the ground current signal is larger than the predetermined peak value, and a signal converter electrically connected to the peak value comparator for converting the AC control signal into a DC control signal and transmitting the DC control signal to the controller for executing a corresponding protection procedure to the uninterruptible power system in response to the DC control signal.

A system and method for effectively implementing an immunity mode in an electronic device includes a processor module for executing processing tasks for the electronic device. The processor module includes processor information, such as processor states and processor data, for executing the processing tasks. The electronic device also includes a protected memory for storing electronic information in an optimally secure manner. An immunity manager may then perform protection procedures to store at least a portion of the vulnerable processor information into the protected memory in response to an immunity mode trigger event such as the processor module entering an idle state.

The invention relates to an intelligent chargeable water-saving shower device which is composed of a spray header, a motorized ball valve, an imprinter, an inductor for reading cards, an inductive card, a DC electrical source, a flow meter, a master switch of hot and cold water, a cold water pipe, a cold water switch, a hot water pipe and a hot water switch. the motorized ball valve, the imprinter, impeller-photoelectricity-type flow meter and the DC electrical source are connected in series under the spray header; the imprinter is internally provided with a power-off protection procedure, can carry out weighted calculation to the collected data of used water and the use time, and can do 'small charge for small water and no money deduction for water stopping', thus having reasonable charge, convenient use and remarkable functions of saving water and energy and reducing discharge of domestic sewage. Additionally, the main parts of the device can be resistant to high temperature and water vapor, have long service life, thus satisfying the extensive demand of bathhouses and bathing spots of schools, factories and mining enterprises and partial social public bathhouses and bathing spots, especially the demand of the bathhouses of colleges and universities.

An electronic control valve driving protective circuit of railway vehicles is mainly formed by a main control chip, a monitoring chip, a power switch driving chip, a relay, a three-state gate, a comparator, a reference voltage source, a high-end current detection circuit and the like. The main control chip is mainly responsible for driving control of a valve, the monitoring chip is mainly responsible for monitoring circuit states at each level of the driving circuit, and the main control chip and the monitoring chip jointly control a driving return circuit. The main control chip and the monitoring chip switch information through a serial communication interface. The electronic control valve driving protective circuit solves the problem in the existing electronic control valve driving return circuit. The single monitoring chip is used for conducting status surveillance and protection on the driving return circuit of an electro-pneumatic changeover valve, states of the driving return circuit are fed back to the main control chip, the monitoring chip can locate fault points of the driving return circuit, fault safety guidance can be achieved, and relevant protection procedures can be carried out.

A method for performing security error recovery in a wireless communications system includes a Packet Data Convergence Protocol layer of the wireless communications system performing a security protection procedure for a Non-Access Stratum message, and the Packet Data Convergence Protocol layer including a protocol error detection and recovery function, for detecting a security error due to a security parameter going out of synchronization and for recovering synchronization of the security parameter.

A method for handling protocol errors in a wireless communications system includes establishing a first signaling radio bearer and triggering an integrity protection procedure of the first signaling radio bearer (302), receiving a first message on the first signaling radio bearer (304), and neglecting the first message and initiating a synchronization procedure to synchronize a ciphering parameter when a predefined condition is met (306).

A method for laser safety protection in an optical communication system includes: a downstream station detecting whether an identification signal loaded by an upstream station on a main optical channel in a direction from the upstream station to the downstream station, exist on the main optical channel; if the identification signal is not detected, the downstream station executing a scheduled safety protection procedure. Methods for loading an identification signal on a main optical channel in an optical communication system and an optical amplifier of laser safety protection, which implement loading the identification signal by controlling the change of pump light of optical amplifier or the wave motion of signal light of main optical channel, are also provided. The solution makes it possible to reliably detect a fiber failure when RAMAN amplifiers or remotely-pumped amplifiers exist, thereby implementing laser safety protection.

The invention provides a double-pipeline concentrated phase delivery system parallel discharge and blockage device and an automatic control method. Each delivery pipeline of a double-pipeline concentrated phase delivery control system is additionally provided with an electronic control pneumatic valve, and the electronic control pneumatic valves are used for communicating paralleled pipelines. A programmable logic control (PLC) system is connected with the electronic control pneumatic valves and used for controlling the electronic control pneumatic valves. In the normal process of material delivery, a monitoring system continuously monitors pressure change conditions of a jet pump and pipelines, when pressure change has a blockage trend, the parallel discharge and blockage device is started to pressurize the delivery system, and therefore the phenomenon that the pipelines are blocked by materials can be avoided. When pipeline blockage due to the facts that air source pressure drops suddenly, a protection program carries out actuation and the like happens, the parallel discharge and blockage device is started, and blocked pipelines can be dredged. By means of the double-pipeline concentrated phase delivery system parallel discharge and blockage device and the automatic control method, stable delivery of aluminum electrolysis materials can be achieved, timely and stable feeding of the materials can be guaranteed, and influences on the pipelines because of the pipeline blockage can be reduced.

The present invention discloses a method and a device for monitoring data for USB mobile storage device. The method comprises the steps of: obtaining feature information of a piece of USB mobile storage equipment and the feature information of a storage file in the USB mobile storage equipment; comparing the feature information of the storage file with the feature information of a confidential file stored in a database in advance; if the storage file is confidential, recording the confidential information stored in the USB mobile storage equipment; finding out whether the USB mobile storage equipment has a last confidential record or not; if finding out the last confidential record of the USB mobile storage equipment, comparing the last confidential record with the current confidential record; if the last confidential record is different from the current confidential record, recording the difference part of two records. The method of the present invention can record the flow directions of commercial confidential data exactly, and can be widely used in important data protection procedure of commercial departments and the like.

The invention discloses a dynamic token with the key protection function and a working method of the dynamic token and belongs to the technical field of keys. The dynamic token comprises a master control module, a key module, a key forbidden timing module and a key abnormity timing module, wherein the master control module comprises a clock unit, a timing interrupt unit, an input interrupt unit and an input/output unit. The working method includes the steps that when the dynamic token detects that input interrupt happens to the input interrupt unit, the dynamic token is awakened, and input awakening identification is set; when the dynamic token detects that timing interrupt happens to the timing interrupt unit, the dynamic token is awakened, and timing awakening identification is set; if key awakening identification is set, key operation is executed, and if the timing awakening identification is set, the key protection procedure is executed. Through the technical scheme, power consumption caused by abnormal key operation on the dynamic token can be reduced, and the service life of the dynamic token is prolonged.

A multi-switching device and a multi-switching method thereof perform the following steps. A first control signal and a second control signal are received. Whether the first control signal and the second control signal are received is determined. When the first control signal and the second control signal are received, whether the first control signal and the second control signal specify any control requests is determined. When the first control signal and the second control signal respectively specify a control request, a control signal protection procedure is performed to control a first bus to communicate with one of second buses, and an error warning signal is outputted. When the first control signal and the second control signal do not respectively specify any control requests, a backup processing procedure is performed, and the error warning signal is outputted.

The invention discloses a speed controllable method and device of a mine overhead mancage. The speed, the dip angle and the distance between two adjacent carts of the whole mancage are acquired in real time through a speed sensor, a dip angle sensor and an infrared sensor, then the acquired data are transferred to a DSP data processing module, then the DSP data processing module transfers the processed data to a master control module, and the master control module transmits the decided order data to an execution module, so that the operation state and speed of a drive motor and a brake motor can be controlled. By means of the speed controllable method and device of the mine overhead mancage, on the one hand, passengers can get on and get off the carts safely, and meanwhile energy is saved; on the other hand, the speed of the mine overhead mancage can be controlled automatically; and when a manual operation mode is executed, emergency braking can be achieved automatically through the set protection procedure when dangerous situations occur, and thus the safety of personnel is protected.

An united method for planning environmental protection of power supply based on expansion-sequencing manner includes making preliminary optimization on environmental protection scheme of power plant to be selected, sequencing said scheme as per total cost then loading each power plant to be selected, retiring old machine sets near the end of their service life time to form preliminary plan, sequencing environmental protection procedure selected from each power plant to be selected according to treatment cost of unit pollution, loading said procedure according to exhaust index of polluted matter in local area to finalize said plan.