34 results about "Retrograde motion" patented technology

A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. In this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion and by appropriately maneuvering each member, a continuous channel is created. Additional elements such as capture devices, dilators and injection catheters are also disclosed.

The invention discloses a crossroad traffic event automatic detection system based on multi-source information fusion. The invention aims at urban crossroad traffic management, establishes audio-video traffic information acquisition, traffic information analytical processing and traffic event automatic alarming three subsystems. The invention mainly comprises: designing and realizing an acquisition subsystem of multi-source traffic information (traffic audio information, traffic video information, multi-angle video information, elevation angle video information); realizing a traffic parameter automatic extractive technique based on traffic audio and traffic video; realizing a traffic event (car crash, illegal parking, jam and retrograde motion) automatic detection technique based on the multi-source information fusion; and realizing a software system for traffic event report, traffic event associated video information transmission, and traffic control center display and processing, and forming an integrated crossroad traffic event automatic detection system.

An apparatus and method are described for quickly inducing therapeutic hypothermia of the heart by perfusing the myocardium with hypothermic fluid in alternatingly antegrade and retrograde directions. The apparatus and method provide rapid cooling of the affected myocardium to achieve optimal myocardial salvage in a patient experiencing acute myocardial infarction. The therapeutic hypothermia system includes one or more coronary artery perfusion catheters, a coronary sinus perfusion catheter and a fluid source for delivering a hypothermically-cooled physiologically-acceptable fluid, such as saline solution, oxygenated venous blood, autologously-oxygenated arterial blood and/or an oxygenated blood substitute. The system may also include one or more guidewires, subselective catheters and/or interventional catheters introduced through a lumen in one or more of the perfusion catheters.

The invention relates to an active anti-collision early-warning method and system for a ship in a bridge zone. The method comprises that S1) bridge-zone navigation areas are divided on the basis of anelectronic sea chart; S2) each virtual navigation-mark navigation area is provided with a retrograde motion determining virtual navigation mark close to the boundary of an adjacent navigation bridgeopening; S3) AIS information of the navigation ship in the bridge zone is collected in real time; S4) on the basis of the navigation area of the bridge zone, a collision risk level for evaluating thedriving state of the ship is obtained according to real-time coordinates and bow direction of the ship; and S5) broadcast information corresponding to the collision risk level obtained in the step S4)is emitted to the ship. Compared with the prior art, the risk in colliding with the bridge of the ship can be evaluated on the basis of the AIS information, and navigation-aided services and early-warning information are broadcast for the ship according to the different risk levels.

The invention discloses a vehicle retrograde motion intelligent detection method based on tracking track analysis. The method comprises the following steps: detecting a target vehicle in a video imageby utilizing a primary classifier and a secondary classifier; extracting a target vehicle area, distributing a nuclear correlation filtering tracker for the target vehicle; wherein each target vehicle is matched with one nuclear correlation filtering tracker, the nuclear correlation filtering tracker is used for obtaining a tracking area of the target vehicle, then the movement track growth direction of the target vehicle is obtained according to the tracking area and compared with the initially marked retrograde movement direction, and if the movement track growth direction is the same as the initially marked retrograde movement direction, the target vehicle retrograde movement occurs; And if not, the target vehicle does not run reversely. By means of the mode, real-time detection of vehicle retrograde running is achieved, and the problems existing in manual detection are solved; And meanwhile, the reliability of vehicle detection and recognition is improved by using the cascade classifier, and simultaneous tracking of multiple vehicle targets is realized.

The invention discloses an oriented monitoring system with a radio-frequency signal identification function. The oriented monitoring system comprises oriented passage doors, an Ethernet module, a server module, a management module and a database module. Each of the oriented passage doors is provided with an RFID (radio-frequency identification device) and RFID antennae, and radio frequency identification signals emitted by the RFID antennae cover any sides of the oriented passage doors and are used for identifying EPCs (electronic product codes) of RFID labels when people and articles with the RFID labels pass through the oriented passage doors. The Ethernet module is used for transmitting the identified EPCs of the RFID labels to the server module. The server module is used for performing data analysis and data processing on the received EPCs, judging moving directions of the people and the articles, detecting retrograde motions, hover and retention of the people and the articles and emitting sound-light alarm control signals. The management module is used for setting the moving directions of the people and the articles allowed by the oriented passage doors and displaying moving tracks of the people and the articles in real time. The data module is used for storing the moving directions of the people and the articles allowed by the oriented passage doors and moving track data of the people and the articles passing through the oriented passage doors.

The invention belongs to the technical field of intelligent transportation, and provides a streaming monitoring analysis pre-warming system and method specific to vehicles based on fog calculation. The streaming monitoring analysis pre-warming method comprises the steps that state data of all vehicles is collected specific to the vehicles in travelling and uploaded to a distributed message queue module on fog equipment, according to the real-time data, real-time traffic information and driver behavior models are obtained by using a big data analysis method, the situations that present driver behaviors are abnormal and whether retrograde motion of the vehicles occurs or not are discovered in time, and the traffic information and the driver behavior models are stored in a local storage module and meanwhile transmitted to a history data storage module in a cloud calculation center; in addition, the vehicle position and the driver behaviors of future period of time are forecasted, and advanced warning of traffic accidents possibly occur in the future is facilitated. According to the streaming monitoring analysis pre-warming system and method specific to the vehicles based on the fog calculation, the defects that time delay is long, load of calculation center is heavy, network flow is large and network congestion is prone to occurring of a traditional vehicle safety monitoring system are overcome, and the safety of road traffic is improved.

The invention discloses a puncture sheath with a bidirectional puncture function. The puncture sheath comprises a sheath canal assembly and a sheath core assembly; the sheath canal assembly comprises a sheath canal and a sheath canal accessory, a through sheath canal inner cavity is formed in the sheath canal, the sheath canal accessory is connected to the rear portion of the sheath canal, and the sheath core assembly is inserted into the sheath canal inner cavity from the sheath canal accessory and axially moves along the sheath canal inner cavity; the sheath core assembly comprises at least one bent sheath core assembly body, each bent sheath core assembly body comprises a linear sheath core pipe and a bent sheath core pipe with a shape memory function, the near end of the bent sheath core pipe is connected with the linear sheath core pipe, and the far end of the bent sheath core pipe is connected with a sheath core head; in a free state, the bent sheath core pipe bends toward the side of the linear sheath core pipe and is constrained in a straight state in the sheath canal inner cavity. The advancing direction of a guide wire can be controlled accurately, retrograde and prograde motion admission passage operations can be completed at the same puncture point, particularly in interventional therapy of bilateral lower limb artery lesions, secondary puncture is avoided in the same operation, the guide wire can be smoothly conveyed to lesion regions on the same side or the opposite sides, and interventional therapy of bilateral limbs at the same side is completed at the same time.

The invention relates to methods and apparatus for initiating scoring. Methods and apparatus are provided for forming an initiation flaw (111) in the surface (114) of a glass sheet or glass ribbon (13). The initiation flaw (111) is used in connection with a laser light beam (121) and a cooling area produced by a cooling nozzle (119) to from a score line (115) in the surface (114) of the sheet or ribbon (13). The initiation flaw (111) is formed by a mechanical scoring head (20) which is carried by moving carriage (14) and which undergoes retrograde motion (19) relative to the carriage (14) so as to increase the time available for forming the initiation flaw (111).

A retrograde-motion preventing system for vehicles is provided which can rapidly detect retrograde motion of a vehicle and alert the driver even when a database with completely collected information of retrogression-forbidden rodes in a parking area is not loaded in a vehicle navigation system for vehicles. A one-way attribute is provided to an exit road which is in the parking area and is connected to an external road. With the information, the retrograde motion of a vehicle on the exit road is detected and the driver is alerted. Additionally, in the invention, with the one-way attribute, whether an action which can result in retrograde motion is present in the parking area is pre-detected before the vehicle approaches the exit road, and if retrograde motion is a result according to the estimation, an alert is provided. Therefore, even if the one-way attribute in the parking area has not been completely processed, a retrograde motion alert can be provided rapidly.

The invention relates to a maize picker principle and a device arranged on a cropper, and is an agricultural machine. Compared with the current stripping by means of squeezing and rubbing forcibly with a principle of roll rotating and rubbing, the invention is characterized in that when the tip part of a maize plant turns towards a stripper intercept rod and operates reversely from the rod, the corn ear can be toggled from the tip downwardly and steered by the stripper intercept rod, leading the ear to be separated from the plant in the natural direction. The invention has the advantages that the ear can not be impacted and any position of the ear can not be rubbed to cause an injury in the picking process; the picking efficiency can be greatly improved; the energy consumption is lowered in a large scale.

The invention relates to a battery car retrograde motion detection system and method, and the system comprises an image obtaining module which is used for collecting a video; a battery car detection module which is used for identifying the battery car from the acquired video; a target tracking module which is used for tracking the identified battery car; a motion trail analysis module which is used for acquiring a motion trail of the battery car; and a retrograde motion detection module which is used for judging whether the battery car has a retrograde motion behavior or not according to the obtained moving track of the battery car. Automatic detection of battery car retrograde motion is realized, and a foundation is laid for controlling battery car retrograde motion.

The invention relates to a one-way speed bump. The one-way speed bump is characterized in that the one-way speed bump for controlling a vehicle to perform one-way driving deceleration consists of a speed bump (2), a spring (3), a front fixed plate (4), a connecting shaft (5), a front fixing nail (6) and a rear fixing nail (7), the spring (3) is arranged in the arc-shaped rest front part, with a raised middle, of the speed bump (2) so that the bottom surface of the arc-shaped rest front part, with the raised middle, of the speed bump (2) leaves the ground (1), warps up and is separated from a triangle part under the condition that the raised arc front part is not pressed by external force, and a ridge for preventing the vehicle from making retrograde motion is formed; the front fixed plate (4) is connected with the arc-shaped front part, with the raised middle, of the speed bump (2) by the connecting shaft (5). The one-way speed bump creates an open innovation concept, can be widely applied to one-way streets and solve the problem of the retrograde motion of the vehicle in a one-way street due to the fact that the design of the traditional speed bump is not quite suitable for the one-way street.

The invention relates to a formula of a compound procaine benzylpenicillin injectant for cow breasts (during a dry period), and a manufacturing method of the injectant. The injectant comprises a suspending agent, a thickening agent, and a solid dispersion, and is manufactured into a white or white-like ointment through special process. The injectant is simple to manufacture, stable in content, easy to inject, and soft in matrix. The injectant is an ointment, and compared with an injection, the injectant has advantages, such as high bioavailability, slow release, and long action time, can be sealed at nipple holes after being filled into milk chambers through milk ducts, and can prevent bacteria from intruding into the milk chambers by virtue of retrograde motion through the nipples.

The invention provides a testing method of the metronidazole content in compound ketoconazole ointment. According to the method, by adopting a liquid-phase chromatographic method for testing, under the dissociation function of chromatographic columns, the interference and retrograde motion of related substances, impurities, other auxiliary materials and other medicinal components are avoided, andthe related substances, impurities, other auxiliary materials and other medicinal components can be effectively dissociated and discharged out so that the tested metronidazole content in the compoundketoconazole ointment can be more truly and accurately embodied.

The invention provides an intelligent digital monitor. The intelligent digital monitor is provided with a video acquisition module, a red light running identification sub-module, a retrograde motion identification sub-module, a disordered parking identification sub-module and an optical fiber sender; the intelligent digital monitor is used for acquiring illegal video information of a road, carrying out corresponding identification and sending an identification result to an outer center control end through the optical fiber sender, so that real-time automatic monitoring of the road is realized, a worker can grasp road information through the center control end and the monitoring intensity is improved; a video storage module is used for storing all video information and transmitting videos corresponding to identification results to the optical fiber sender under the control of a controller module; and the optical fiber sender sends the identification results and corresponding illegal videos to the outer center control end.