860 results about "Falling Objects" patented technology

Methods and apparatus for utilizing a downhole deployment valve (DDV) to isolate a pressure in a portion of a bore are disclosed. The DDV system can include fail safe features such as selectively extendable attenuation members for decreasing a falling object's impact, a normally open back-up valve member for actuation upon failure of a primary valve member, or a locking member to lock a valve member closed and enable disposal of a shock attenuating material on the valve member. Actuation of the DDV system can be electrically operated and can be self contained to operate automatically downhole without requiring control lines to the surface. Additionally, the actuation of the DDV can be based on a pressure supplied to an annulus.

Methods and apparatus for utilizing a downhole deployment valve (DDV) to isolate a pressure in a portion of a bore are disclosed. Any combination of fail safe features may be used with or incorporated into the DDV such as redundant valve members, an upward opening flapper valve or a metering flapper below a sealing valve. In one aspect, a barrier or diverter located in the bore above a valve member of the DDV permits passage through the bore when the valve member is open and actuates when the valve member is closed. Once actuated, the barrier or diverter either stops or diverts any dropped objects prior to the dropped object reaching and potentially damaging the valve member. In another aspect, the tool string tripped in above the DDV includes an acceleration actuated brake that anchors the tool string to a surrounding tubular if the tool string is dropped.

A playing grid includes cells for holding objects of different types, and a cursor that when moved exchanges positions in the grid with an adjacent object. The cursor is prevented from leaving the bounds of the grid. Horizontally or vertically lined-up matchable objects of the same type are deleted. Objects are moved in the grid to cells adjacent to and below unless occupied by other objects. A new row of objects is created below the bottommost row of the playing grid, and shifted up into the grid displacing other objects in the grid up. In an expert mode, falling objects are created at the top of the grid, and objects can be transformed into other objects. In a multiplayer mode, objects can be exchanged and deleted from two playing grids depending on player performance.

A computer game which makes the player operate a falling object that falls in a predetermined display area, and clears the falling object and falling stop objects by combining the falling object and falling stop objects under a predetermined condition. If falling stop objects including blocks that stop falling include a group of blocks which meet a predetermined clear condition, the group of blocks are registered as blocks to be cleared, and the control waits for a clear waiting state. Even in this waiting state, the next falling object begins to fall. After that, when a sequence bar (701) which moves vertically or horizontally in synchronism with a music output along with the progress of the game has passed the blocks to be cleared, these blocks are cleared.

The present invention relates to a driver protection structure and a device supporting the same which secure driver's safety according to the international standardization organization when collided with a falling object and upon equipment's rollovers, comprising a first stopper which allows a driver's cabin and the driver protection structure mounted over the driver's cabin to move in a vertical direction and restricts the driver's cabin to move in a horizontal direction, and a second stopper which allows the driver's cabin to move in the vertical direction and restricts the driver's cabin to be lifted when a load is applied to the driver's cabin from external.

The invention discloses an absolute gravity measuring system and measuring method as well as a falling method of a free-falling body. The absolute gravity measuring system comprises a free-falling body device, a laser interference measuring device and a vibration isolation platform, wherein the free-falling body device is used for realizing free-falling motion of a falling object; the laser interference measuring device is used for measuring displacement generated during the free-falling motion of the falling object, and can realize accurate calibration of a measuring beam in a vertical direction by adopting a simplified structure; and the vibration isolation platform is arranged between the laser interference measuring device and the ground and is used for isolating influence of ground vibration on measurement. The absolute gravity measuring system has the beneficial effects that free-falling motion of the falling object is realized by adopting an elastic falling member suspension method, vibration influence of a motor drive system on the free-falling body device is reduced, and the accuracy of the gravity measuring result is improved; meanwhile, the zero crossing point (ZCP) feature of an interference fringe signal is computed by computer software so as to eliminate possible measurement deviation caused by a hardware circuit.

An operator protective structure equipped on a cabin of construction machine is capable of moving the cabin along with a front guard by directly installing the front guard on the cabin fixed to an upper frame to protect the operator from an object penetrating into the front of the cabin. The cabin is provided with a bottom plate on a bottom thereof, mounted on an upper frame installed on a lower driving body and independently vibrated relative to the upper frame by connecting the bottom plate to the upper frame through vibration absorbing devices. The operator protective structure includes a front guide provided with a top bar and a bottom bar and installed up and down in front of the cabin to protect the cabin from objects penetrating into a front of the cabin and a top guide formed long on a ceiling of the cabin in a front and rear direction to protect the cabin from falling objects. The top bar is connected to a front top portion of the cabin and the bottom bar is connected to a front bottom portion of the cabin, whereby the front guide and the cabin are vibrated relative to the upper frame in a single body.

The invention provides a seabed pipeline simulation impact test system. The test system comprises a door-shaped support frame across an earth pond, a pipeline for simulating a seabed pipeline is arranged in the earth pond, a crossbeam of the door-shaped support frame is provided with a moving seat capable of performing translation along the crossbeam, a slide guide rail is vertically arranged below the crossbeam from the moving seat in an extending manner, the moving seat is provided with a lifting winch, the lower end of the lifting winch is suspended with a simulation impact object arranged along the slide guide rail in a sliding manner, the seabed pipeline is positioned right below the crossbeam of the door-shaped support frame, one end of the seabed pipeline is connected with a fixed support frame, the other end of the seabed pipeline is connected with a loading axial load device and a translation support frame in sequence, the seabed pipeline is a sealed pipe body, and one end of the seabed pipeline is connected with a loading internal pressure device. According to the simulation test system, impact test simulation of falling objects for the pipeline can be realized in the conditions of pre-added axial load and internal pressure of the pipeline, and simulation impact tests of the pipelines in the conditions of different lengths, embedding depths, impact positions, and impact contact surface shapes can be conducted.

A circulating sub apparatus comprising: a substantially tubular outer body member having a throughbore formed therein; a substantially tubular inner body member; wherein both the inner and outer bodies normally have holes formed therein; and a displacement mechanism for producing movement of the inner body member relative to the outer body member between: an open configuration, in which the hole(s) on the outer body member are open such that fluid is passable between a throughbore and the outside of the circulating sub apparatus via the one or more holes; and, an obturated configuration, in which the hole(s) on the outer body member are obturated; wherein the inner body member comprises a seat member adapted to catch a dropped object, and wherein the seat member is adapted to permit at least a proportion of fluid to flow past the dropped object when it is seated thereon. Normally the seat member is located upstream of the hole(s) of the outer body member in both the open and obturated configurations. In exemplary form the apparatus uses a drop object which can erode over time. When the object is dropped it causes the displacement mechanism to move to a different position and so switch between open and obturated positions. In exemplary form a mechanism, such as a cammed sleeve, is provided to allow the displacement mechanism to be moved back and forth between open and closed positions. Embodiments benefit in that they can be moved back and forth between such positions rather limited to a one-off change using a dropped ball.

The invention discloses an elevator fall protective device, which comprises a detecting device for detecting a falling object and a protective device, wherein the detecting device is distributed and arranged in a hoistway of an elevator; and the protective device is arranged on side of the hoistway and ejects a protective net to stop and receive the falling object when the detecting device detects that the falling object exists. Compared with the prior art, the elevator fall protective device has more safe and effective protective measures and can effectively reduce accidents caused by fall of people into the hoistway during the operation of the elevator and improve the safety control during the operation of the elevator.

The invention relates to a railway disaster prevention early warning information transmitting system based on a GSM-R (Global System for Mobile Communications for Railway) cell broadcast way. The system comprises a vehicle-mounted terminal and a ground disaster prevention information transmitting center, wherein the vehicle-mounted terminal consists of a wireless transmitting unit and a display unit; and the ground disaster prevention information transmitting center consists of a cell broadcast center, a GPRS (General Packet Radio Service) interface server, a forwarding controller, a memory unit, a disaster prevention monitoring gateway, a GPRS gateway, a cell broadcast gateway, an internal data exchange unit, a time synchronizing unit, a management server and an operation management terminal. Due to the adoption of the system, railway disaster information (including wind, rain, snow, fallen objects and the like) can be transmitted to all motor train units and maintenance operation personnel in a controllable range close to a disaster occurring point in real time through a GSM-R cell broadcast service, the phenomenon of missing of time for adopting an optimal measure caused by overlong time for responding to and transmitting original disaster information is avoided, the instantaneity and reliability of disaster prevention early warning are improved, and the train running safety and disaster protection are enhanced.

The invention discloses a measurement control method for field installation of a steel tube lattice pier. The steel tube lattice pier is composed of four upright steel tubes, a transverse-connecting truss is arranged along the height of the pier, and a connecting ventral tube is arranged between the upright steel tubes; the steel tube lattice pier is conveyed to the pier site to carry out field installation in the form of steel tube section units processed in advance and the transverse-connecting truss; the steel tube section unit is composed of two longitudinal A-shaped frame steel tubes anda cross brace through connection; and in the process of installation, the steel tube section units are positioned by using a measurement control method which is based on a 'three-dimensional coordinate control method' and supplemented by a 'double-axis control method'. By using the method disclosed by the invention, the axis deflection of the pier body caused by environment factors, manual operations and improper constructions can be effectively eliminated, the setting-out precision and the operating efficiency are high, the needs of installation of lattice pier studs and cross braces are satisfied, and the surveying personnel and instruments are not hurt by falling objects, therefore, the method has practical applicability.

Described is a net system that protects crew members working on high-rise buildings. The net system easily and quickly attaches to the outside of a building perimeter. The net system includes a parapet clamp, a vertical support arm, a mounting bracket, a cantilever arm, and a debris net. The parapet clamp is adjustable and also supports the debris net and vertical support arm. The vertical support arm extends down from the parapet clamp and attaches to the mounting bracket at its lower end. The lower end of the cantilever arm also attaches to the mounting bracket via a pivot pin which allows the cantilever arm to rotate. The debris net is suspended between the upper end of the cantilever arm and the parapet clamp. Among other things, the net system allows crew members to work on high-rise buildings without the risk of being injured by a fall or dropped objects.

A device for protecting the connection of a tubular conduit to a main tube of a maple sap collecting system wherein sap collected from maple trees are directed under vacuum to a pumping station of a sap processing center. The device comprises a band having a first end adapted to be mounted to the main tube and an opposite end adapted to be mounted externally onto the tubular conduit at a given distance from the main tube. This distance is greater than the distance between the first and opposite ends of the band so that accidental impact on the tubular conduit resulting from falling objects and tension applied to the attachment of the conduit to the main tube are taken by the band to thereby protect the connection of the tubular conduit to the adapter.

An overhead falling object early-warning method comprises the following steps that scene images shot by a camera device of a safety protecting device, and the moving direction and the moving speed, detected by an acceleration sensor, of a user are obtained every preset interval time; a falling object is detected in the detected scene images; when the falling object is detected in the scene images obtained, whether the user can be wounded by the detected falling object or not is judged according to the detected position of the falling object, and the moving direction and the moving speed of the user; when the fact that the user can be wounded by the detected falling object is determined, the fact that a warning device needs to be started in the safety protecting device is determined; the warning device is started to conduct warning. The overhead falling object early-warning system and method can be used for detecting whether the falling object appears above the user of the safety protecting device or not in real time.

The invention discloses an elevator car with a telescopic pedal. The elevator car comprises a car body (1), a car frame (2), a car door (3) and a car bottom (4), wherein the car frame (2) is located at the upper end of the car body (1), the car bottom (4) is located at the lower end of the car body (1), one side of the car frame (2) is provided with an automatic door machine (10), the car door (3) is disposed on one side of the car body (1), and the car door (3) is connected with the automatic door machine (10). The elevator car is characterized in that the car bottom (4) is provided with a groove (17), the telescopic pedal (9) is disposed in the groove (17), and the automatic door machine (10) is provided with a sensor (11). After the car door is opened, the telescopic pedal extends from the car bottom and seals a seam between the car and the bottom face of the outside, so that falling objects are prevented from falling into an elevator shaft or tiny wheels of wheelchairs, baby carriages and the like are prevented from being stuck in the seam, and safety of an elevator is improved.

The invention provides an object detecting method of a robot and the robot. The object detecting method comprises the steps that the robot recognizes the destination location needing to be arrived at; in the moving process, the robot judges whether the distance between the current position of the robot and the destination location is within a preset distance or not in real time; when the robot moves to the position with the distance to the destination location being within the preset distance, the robot starts a camera device to shoot the part in front of the robot; the robot judges whether object falling exists in front of the robot or not according to a shot image, and if object falling exists in front of the robot, the robot recognizes the number of falling objects according to the image; and the robot adjusts the moving speed up to the moving speed corresponding to the number of the falling objects according to the pre-acquired corresponding relation between the number of the falling objects and the moving speed. By means of the object detecting method of the robot, mistaken operation made by the robot can be reduced.

The invention discloses a voice falling object district selection method and device and a terminal, relating to the communication technology field. The voice fallback object district selection method comprises steps of obtaining signal intensity of all terminal voice fallback target districts to be searched according to a redirection order on a network side, determining target districts of a first preset quantity from all target districts according to the target district signal intensity, obtaining a signal interference value of the target districts of the first preset quantity, and determining target districts of a second preset quantity as a final target district for terminal voice fallback from the target districts of the first preset quantity according to a target district signal interference channel. The voice fallback object district selection method and device and terminal determine the target district through performing double threshold screening on the district performance, improve a terminal calling success rate, guarantee voice quality of terminal and improve user experience.

In a method for detecting a falling object using a safety guard device, a current digital image of the overhead scene is captured by an image capturing device of the safety guard device. The method detects a falling object in the current digital image, and outputs alarm messages when a falling object is detected in the current digital image and the falling object is going to hit a user of the safety guard device.

The invention discloses a device for monitoring railway foreign body intrusion by using a dynamic signal, and belongs to the field of disaster prevention and reduction of the foreign body intrusion in rail environment monitoring. In the method for monitoring railway foreign body intrusion, an alternating current signal is adopted, the voltage and power of an input signal and an output signal are monitored, and the signals are ensured not to lead in other signals to cause abnormal work of a power grid due to seton. The multi frequency point working mode of an audio signal ensures that a plurality of paths of power grid cable signals on the same power grid support frame work at different frequencies. If any key device in a drive loop goes wrong, a falling-object relay falls. Due to the adoption of a transformer isolation signal, DC isolation is realized between the interior and the exterior of a board, and the reliability and the safety of the circuit are improved. The AC dynamic mode foreign body sensor has higher safety and reliability than the DC mode foreign body sensor, and accords with guide safety principle of the field of railway signals.