7148results about How to "Avoid danger" patented technology

The disclosure contained herein describes systems, units, and methods usable to stimulate a formation including a pump usable to pressurize fluid, an electric-powered driver in communication with and actuating the pump, and an electrical power source in communication with and powering the electric-powered driver. The electrical power source can include on-site generators and / or grid power sources, and transformers can be used to alter the voltage received to a voltage suitable for powering the electric-powered driver. Air moving devices associated with the electric-powered driver can be used to provide air proximate to the pump to disperse gasses. In combination with fluid supply and / or proppant addition subsystems, the pump can be used to fracture a formation.

A transparent display apparatus which is used in a transportation apparatus includes: a communication unit which receives surrounding situation information, a controller which recognizes surrounding objects using the surrounding situation information, and determines a danger element that is likely to collide with the transportation apparatus using characteristics of the surrounding objects and a movement characteristic of the transportation apparatus, and a transparent display which displays information for informing a user of the danger element. Accordingly, a surrounding situation can be effectively presented.

An NFC tag-based Web service method based on an anti-simulation function includes a first operation of transmitting a response including URL information to the NFC reader when the NFC tag recognizes tagging of the NFC reader, and a second operation of receiving the URL information, by the Web server, the URL information from the mobile Internet device, and transmitting Web page information corresponding to the URL information to the mobile Internet device, wherein the URL information provided by the NFC tag to the NFC reader is varied URL information including a key changed and generated whenever tagging occurs, and the key is changed and generated according to a generation algorithm shared with the Web server.

Provided are an unattended electric car rental system and a rental method. The system comprises a vehicle-mounted terminal, a user terminal and a management platform; and the vehicle-mounted terminal and the user terminal both perform data transmission with the management platform, and a wireless connection is formed between the vehicle-mounted terminal and the user terminal. The method comprises steps of: the management platform obtaining user information, obtaining user deposit, receiving information of a reserved vehicle, monitoring a time when a user picks up the vehicle, controlling the user to pick up the vehicle, verifying the user information, controlling starting up and running of the vehicle, controlling the user to return the vehicle, the management platform performing automatic deductions, and introducing a whole process of implementation of vehicle renting. The system provided by the invention is novel in design, and is convenient for the user to use; a rental process does not need the participation of staff members, thereby implementing unmanned renting. The method provided by the invention provides more convenience for the user in a renting process, and real-time feedback of information enables the user to timely obtain related information, thereby ensuring rights and interests of rental enterprises and users.

A change-over device of pull cord control and wireless remote control for a DC brushless-motor ceiling fan is to have a driver installed in a ceiling fan basic body, and the driver has a detecting unit for detecting whether or not a connector positioned in a hanging bell is connected with a wireless control switch unit so as to control the blades of the DC brushless-motor ceiling fan to rotate by pull cord control or by wireless remote control. Further, the connector is installed inside the hanging bell; therefore, when the DC brushless-motor ceiling fan is to be additionally provided with a wireless control switch unit, it is convenient and safe in installation.

The invention relates to a method, a system, an electronic device and a computer program for providing at least one content stream to an electronic device applying Digital Rights Management (DRM). In the method a master integrity key is obtained in a streaming node. An encrypted master integrity key is obtained in an electronic device. The encrypted master integrity key is decrypted in the electronic device. At least one session integrity key is formed in the streaming node and in the electronic device using at least the master integrity key and the integrity of at least one content stream is protected between the streaming node and the electronic device using the at least one session integrity key.

Measurement / analysis unit in a Java virtual machine has the function of measuring data when an event of garbage collection occurs, and the function of periodically measuring data. The measurement / analysis unit analyzes the measured data and predicts a danger of a memory shortage, and predicts a danger using an algorithm depending on the type of garbage collection used by the Java virtual machine. An application server is notified of a warning of the predicted danger of a memory shortage by an analysis result notification means by an inter-process communication, or the like. The measurement / analysis unit calculates a memory capacity required to avoid the predicted danger of a memory shortage, and the calculated memory capacity is transmitted to the application server by the analysis result notification means by an inter-process communication, or the like in the same way as the warning.

A method and system for performing securing and controlling of a network using content identification of files in a network having a central infrastructure and local computing devices is presented. The method comprises calculating a hash value of a new file created or received on a local computing device, transmitting the hash value to the central infrastructure, comparing the hash value with a previously determined hash value stored in a database on the central infrastructure to determine whether the file is new to the network and if the file is new to the network, checking the file content with a content identifying engine, installed and updated on the central infrastructure. Content attributes are determined for the files which allow to perform appropriate actions on the local computing devices according to policy rules.

A radio link control (RLC) layer provides RLC entity information to a medium access control (MAC) layer. The RLC entity information indicates that the RLC layer has service data unit (SDU) data to be transmitted. After providing the RLC entity information, the RLC layer receives an unexpected data interruption that requires the RLC layer to discard or interrupt transmitting the SDU data. After the unexpected data interruption, the MAC layer requests at least a protocol data unit (PDU) from the RLC layer in response to the RLC entity information. The RLC layer then submits to the MAC layer at least one padding PDU in response to the MAC request. The padding PDU is submitted in place of the discarded SDU data. Alternatively, the affected SDU data is not discarded until the next transmission time interval (TTI).

The invention discloses a system and a method for guaranteeing driving safety and a method for guaranteeing the safety of vehicles and drivers by utilizing the system. The system for guaranteeing the driving safety comprises a vehicle-mounted terminal arranged in a vehicle and a control center communicated with the vehicle-mounted terminal, wherein the vehicle-mounted terminal comprises a vehicle-mounted terminal processor, an overspeed detection module, a fatigue detection module, a lane departure detection module, a driving recording module, a danger prompting module, an emergent salvation module and a wireless communication module. The overspeed detection module, the fatigue detection module, the lane departure detection module, the driving recording module, the danger prompting module, the emergent salvation module and the wireless communication module are connected with the vehicle-mounted terminal processor respectively. The system and the method for guaranteeing the driving safety have the advantages that dangerous driving behaviors of the drivers can be detected and prompted in real time, a danger prompt can be sent to vehicles at the same road section with a dangerous vehicle, the drivers are prompted to avoid the dangerous vehicle or change lanes, meanwhile dangerous driving information is comprehensively analyzed through the control center, then further suggestions are provided, and the drivers are classified.

The invention discloses an identity authentication method by a fingerprint USBkey and includes the following steps: (1) the fingerprint information of users is recorded into the fingerprint USBkey and the information is saved in advance; (2) at least a digital certificate generated, which comprises the following steps: firstly, a pair of private and public keys are generated in the fingerprint USBkey; the relevant information of the public keys and the digital certificate is sent to a CA center and generating the digital certificate by the CA center; (3) each digital certificate and corresponding private keys stored and encrypted on the fingerprint USBkey; (4) when a user terminal communicates with a processing platform, the fingerprint USBkey at the user terminal firstly checks the fingerprints, digital signature is carried out on the data to be sent by the corresponding private keys and the data is transmitted to the processing platform for identity authentication. The method permits the digital signature after the fingerprints authentication succeeds; the loophole of PIN code input and transmission does not exist in the whole interactive process, which improves the transaction security to the utmost extent.

A cell phone plug device capable of being locked automatically comprises a cable (1), a shell portion (2) and an insertion portion (3), wherein the left side of the shell portion (2) is connected with the cable (1), and the insertion portion (3) extends from the right side of the shell portion (2). A cavity (20) is formed in the shell portion (2); the position, close to the shell portion (2), of the insertion portion (3) is provided with a cavity (30) communicated with the cavity (20); the left portion, opposite to the cavity (30) of the insertion portion (3), namely the portion, far away from the cavity (20), of the insertion portion (3), is solid; metal contact strips (39) are arranged on the upper side face and the lower side face of the left portion of the insertion portion (3) to be electrically connected with a cell phone; the right end face of the insertion portion (3) is provided with a contact sensing contact (38) used for sensing contact with the bottom of a socket of the cell phone.

A method and an arrangement for controlling a drive unit are suggested wherein a maximum permissible value of an output quantity is determined. This maximum permissible value is compared to the actual value and, when the permissible value is exceeded by the actual value, reaction measures are initiated. The maximum permissible value is filtered at least in one operating state in accordance with filter means including a filter and a dead zone member. Furthermore, the maximum permissible value is continuously reduced in dependence upon the approaching of at least one quantity to a limit value. This quantity represents an operating state.

A greensmower having a cutting reel and a traction member and an independent electric circuit and motor for driving each. A handle is attached to the reel for mower guidance by an operator in a walk-behind position. Separate electric controls are connected to each motor for separate speeds for each motor and thereby control the clip rate of the mowing. There are low battery power read-outs and automatic shutoffs. Provision is made for traction powering of the mower even when the reel motor is not operating because of low battery power. A lift-out battery pack is shiftably mounted on the mower for producing the desired force of the mower on the ground.

The present invention is surgical operation system under the guide of magnetic resonant image and the operation navigating method. The surgical operation system includes magnetic resonant imaging equipment, a tracking system, a surgical instrument, a sick bed, a control and display device, a computer with relevant software. It features the calibrating pin and calibrating mode, and the tracer with different coordinate systems for measuring pose and calibrating. The present invention can realize the precise location of the operational equipment relative to the magnetic resonant image and operation navigation.

The plasma processing apparatus for processing a semiconductor substrate using plasma and a method thereof can maintain a steady state simultaneously while maximizing a plasma electron density. The plasma processing apparatus includes: a chamber which generates plasma to process a semiconductor substrate; upper and lower electrodes arranged in the chamber; a DC power-supply unit which applies a DC voltage to either one of the upper and lower electrodes; and a controller which adjusts a power ratio of the DC voltage applied from the DC power-supply unit to either one of the upper and lower electrodes. As a result, the apparatus certainly confines electrons, so that the electrodes are not emitted from the plasma, resulting in a maximized plasma electron density.

Disclosed is a pizza cutting device that allows the user to cut a pizza in uniform, evenly-sized pieces on a consistent basis. The cutter consists of a circular frame that has a series of blades spanning across its hollow interior diameter. Sized so that the entire pizza fits within the interior diameter, the user simply presses down on a pair of handles located on the outside of the frame and the blades cut the pizza into uniform, even slices.

A method for evaluating inflow or outflow in a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured during static conditions or while drilling and may be further processed to compute a density of an inflow constituent in the annulus. Changes in the computed interval density with time may be used as an indicator of either an inflow event or an outflow event.

The present invention discloses an authentication method using a cellular phone in internet. According to the present invention, when connecting to internet or performing electronic commerce, the authentication is performed through the cellular phone in parallel with a personal information stored when user's joining the cellular phone service, a number particular to the cellular phone, a secret number in an authentication required for the connection or the settlement of accounts. Specifically, in authentication process for making up accounts, besides the line connected to internet, a separate cellular phone line is used and if the authentication data of the internet site server is identical to that of the cellular phone service company, the authentication process is completed, thereby eliminating the danger of hacking basically.

The invention provides a socket with a power-on indication lamp. The socket comprises a socket body (9) and a mounting seat (90) which is installed in the sliding groove (19) of the socket body (9) and can slide left and right. The left end of the sliding groove (19) is provided with a limit projection (92). The right end of the mounting seat (90) is provided with a limit block (900) which is matched with the limit projection (92). The mounting seat (90) is internally equipped with an execution motor (91). The rotor of the execution motor (91) and a screw rod (95) are in power connection. The screw rod (95) is cooperated with the screw hole in the transverse wall member (8) in the socket body (9). The left end wall of the mounting seat (90) is fixedly connected to power supply guide columns (74) which slidingly go through the sliding holes in the transverse wall member (8). The power supply guide columns (74) are used for connecting the power supply holes (60) in the plug (6) inserted into the jack of the socket body (9) to supply power. In each of the power supply guide columns (74), a compression spring (71) is arranged between the surface of the transverse wall member (8) facing the execution motor (91) and the stator of the execution motor.

Measurement / analysis unit in a Java virtual machine has the function of measuring data when an event of garbage collection occurs, and the function of periodically measuring data. The measurement / analysis unit analyzes the measured data and predicts a danger of a memory shortage, and predicts a danger using an algorithm depending on the type of garbage collection used by the Java virtual machine. An application server is notified of a warning of the predicted danger of a memory shortage by an analysis result notification means by an inter-process communication, or the like. The measurement / analysis unit calculates a memory capacity required to avoid the predicted danger of a memory shortage, and the calculated memory capacity is transmitted to the application server by the analysis result notification means by an inter-process communication, or the like in the same way as the warning.

A lane keeping assistance equipment is provided, for traveling while accurately following a lane marking, without any accompanying temporary stoppages or causing discomfort to the driver. The lane keeping assistance equipment 1 has a lane marking detecting means 2 for detecting lane marking locations LR, LL; a sideways distance detecting means 32 for detecting a distance R between an automotive vehicle and the lane marking locations LR, LL; a control means 3 for creating and setting a travel target point GP at a location separated from the lane marking location LR, LL and transmitting a signal to a response unit A for causing travel on the travel target point concerned; an intervening steering detecting means 31 for detecting an intervening steering act by the driver; and a measuring means 35 for measuring an elapsed time, wherein the control means 3 updates a distance amount Rgp in correspondence with changes in the above-mentioned distance R, during a time period T total, covering the continuation of the driver's intervening steering acts and the elapsing of a prescribed time T lap after the intervening steering acts end, and after the above-mentioned prescribed time T lap elapses, the control means 3 also causes the above-mentioned updated distance amount to become fixed.

A system and method for a navigation system including a hazard avoidance feature is disclosed. The system and method allows for professionals, civilians, vehicles, robots and computer systems to collaborate and share information regarding hazards, defects, obstacles, flaws, and other abnormalities that exist in any environment. Routes may be planned that avoid these hazards reducing lost time or frustration. Moreover, the system and method is configured for participants to detect, catalog, and share information related to obstacles.

The invention discloses a pressure alarm device for an electric pressure cooker and a method for using the same. The pressure alarm device comprises a base and an outer casing, wherein a spacing bossis arranged above the base, and the outer casing is arranged above the spacing boss. The top of the outer casing is provided with a transparent protective cover, the upper side surface of the outer casing is provided with a display screen casing, the display screen casing is provided with a liquid crystal display, and the rear side of the liquid crystal display is provided with a backlight set. The beneficial effects are as follows: 1. the temperature and pressure information inside the electric pressure cooker can be automatically monitored and displayed, which is convenient for the user to check the use condition of the electric pressure cooker; 2. the pressure can be automatically relieved to avoid the danger of excessive internal pressure of the electric pressure cooker, and the pressure is released, an alarm signal is sent to facilitate the user to find out in time; 3. when the electric pressure cooker is powered off, the internal condition of the electric pressure cooker can be continuously monitored to avoid danger; and 4. the temperature of hot air discharged during the pressure relief can be reduced to avoid scald accidents, and the security is good.

The invention provides a method for automatically generating a vehicle safe driving guarantee scheme based on multi-data fusion. The method comprises the following steps: a roadside sensor collects dynamic information, feature information, road condition information and traffic state information of a driving vehicle within the detection range of the roadside sensor; the vehicle provided with a sensing and positioning vehicle-mounted unit dynamically collects dynamic information, surrounding road conditions and environment information of the vehicle in the driving process; the road side sensorand a vehicle-mounted unit perception sensor simultaneously acquire whether an abnormal event occurs on a road and an abnormal behavior target in real time in a static scanning and dynamic scanning data acquisition mode; and the system starts an anti-collision safety principle to judge whether collision occurs between targets in the future or not, and if any one of the situations occurs, the system issues corresponding early warning information, control information and prompt information to different types of vehicles about to pass through the abnormal area through different client special communication channels to change the motion states of the vehicles so as to guarantee the safety of the vehicles and pedestrians.

The invention relates to the technical field of pressure cookers, in particular to a pressure-controlling gas pressure cooker, comprising a cover, an inner pot and a base; the inner pot is connected with the base in a manner of being capable of sliding relative to the base; the inner pot is hermetically connected with the cover; a pressure-holding assembly safety device is mounted on the base; thefree end of the pressure-holding assembly safety device is abutted to the bottom of the inner pot; a first gas circuit is arranged in the pressure-holding assembly safety device and is communicated with an infrared head; when pressure in a space formed by the inner pot and the cover increases, the inner pot can compress the pressure-holding assembly safety device to change connection or disconnection of the first gas circuit. The technical problem of the prior art can be solved that a gas pressure pot cannot provide automatic control of pressure.

The invention relates to a method for undergoing a chlorobenzene nitration reaction by using a micro-channel reactor, belonging to the technical field of application of organic synthesis. In the method, nitric acid, sulfuric acid, water and chlorobenzene are taken as initial reaction raw materials, and processes such as mixed acid preparation, mixed acid and chlorobenzene preheating, mixed acid and chlorobenzene reacting and the like are completed in a micro-channel reactor system. In the reaction, nitro-sulfuric mixed acid is taken as a nitrating agent, the effective concentration of sulfuric acid in the mixed acid is 50-90 percent, the molar ratio of the nitric acid to the sulfuric acid in the mixed acid is 1:1-1:10, the molar ratio of the chlorobenzene to the nitric acid is 1:1.0-1:2.0, the reaction temperature is 50-100 DEG C, and the reaction time is 30-120 seconds. The chlorobenzene transformation ratio is up to 97 percent, the selectivity of nitrochlorobenzene serving as a product is over 96.5 percent, and the ratio of ortho-para nitrochlorobenzene is over 0.6. A strengthened mixed micro-channel reactor adopted in the invention is particularly suitable for undergoing a continuous nitration reaction, and has the characteristics of stable temperature control and safe process.

The invention comprises a novel method for protecting subjects against malaria. The method of the invention involves inoculation with attenuated sporozoites, and in particular, but not limited to subcutaneous, intramuscular, intradermal, mucosal, submucosal, and cutaneous administration.