184 results about "Virtual wall" patented technology

A virtual wall system includes a mobile robotic device having a steering unit for steering itself, a steering control unit connected with the steering unit for controlling the steering of the steering unit, at least one signal transmitter mounted thereon for emitting a signal, and a sonic receiver for receiving a sonic signal; and a virtual wall generator having at least one signal receiver for receiving the signal, at least one sonic transmitter for emitting a sonic signal, and a signal controller for identifying the signal and controlling the emission of the sonic transmitter. While the mobile robotic device is moving, the signal controller controls the sonic transmitter to emit the sonic signal after the signal receiver receives the signal emitted by the signal transmitter and then the sonic receiver receives the sonic signal, enabling the steering control unit to control the steering unit to steer the mobile robotic device.

A fluid interface port in a microfluidic system and a method of forming the fluid interface port is provided. The fluid interface port comprises an opening formed in the side wall of a microchannel sized and dimensioned to form a virtual wall when the microchannel is filled with a first liquid. The fluid interface port is utilized to perform a labeling operation on a sample.

The invention discloses an intelligent detection method for abnormal behavior in a video sequence image, and relates to the technical field of image processing. Aiming at the defects of large computation burden and poor realtime performance in the existing behavior detection technology, the method comprises the steps of performing target detection and target tracking on a moving target in the video sequence image through codebook background modeling and modified particle filter, then setting a warning line and a warning region, analyzing the behavior of the moving target according to results obtained through target detection and tracking, and performing detection on getting over the warning line of the moving target, entering a virtual wall of the moving target, accelerating of the moving target and abnormal behavior of human body movement.

A method and apparatus are presented for a microscopic valve. The valve is electronically activated. Sensors for detecting objects in the flow may be external or formed in the channels of the valve. Many valves can be formed in parallel and in sequence on a single substrate. Multiple channels may feed each junction. Closure of the valve is accomplished by the formation of a vapor bubble or bubbles. Virtual walls may be formed by a sequence of bubbles. Logic and driver circuitry for producing bubbles may be external or included in the substrate. Such an array is ideally suited for sorting cells. Other materials in a suspension may also be sorted by a variety of criteria. A multi lumen output can produce a continuous distribution of cells or particles thus sorted.

The presence of trace molecules in air may be determined using an ion mobility spectrometer. Such devices may be used in the fields of explosives detection, identification of narcotics, and in applications characterized by the presence of very low airborne concentrations of organic molecules of special interest. The sensitivity of such instruments may depend upon on the method of gas sampling utilized. A virtual wall gas sampling system can greatly improve the sampling efficiency, particularly when the sampling needs to be performed at a distance from the air intake and large volumes need to be sampled. The virtual wall gas sampling system consists of an intake gas flow and a separate group of one or more sheet-like gas flows, which may be either mutually deflected to move with a circular motion or may be formed into a cylindrical bounding surface.

The invention discloses a method and system for achieving distributed network safety protection. The method comprises the steps that the side of a virtual firewall is hung on a virtual switch; whether data flow which is not from or sent to a physical firewall is filtered by the virtual firewall or not is judged through a service virtual machine, if yes, the data flow is forwarded, and otherwise, the data flow is sent to the virtual firewall; the received data flow is filtered through the virtual firewall, and after it is determined that the data flow is safe, the data flow is forwarded back to the service virtual switch, and otherwise the data flow is abandoned. According to the method and system, after the data flow which is not from or sent to the physical virtual wall is judged, the data flow needing to be filtered is sent to the side-hung virtual firewall to be filtered through the service virtual machine, and the data flow which does not need to be filtered is directly forwarded. Network topology is changed a little, it is guaranteed that all the data flow entering in a virtual machine system is filtered, and the resource consumed by the virtual firewall is reduced.

The disclosure provides a geo-fence setting method. The method comprises: geo-fence information is obtained; according to the geo-fence information, a geo-fence area is marked on an electronic map, wherein the geo-fence area marked at the electronic map is used for controlling the motion range of a robot; the operation of acquiring geo-fence information includes acquiring geo-fence information from a robot and the robot obtains the geo-fence information by the following steps: the robot with a virtual wall detecting device moves near a virtual wall arranged in an area needing geo-fence establishment; and in response to detection of the virtual wall by the a virtual wall detecting device, the location information of the virtual wall detecting device is recorded as the geo-fence informationor graphic information or picture information is obtained based on the location information and the graphic information or picture information is used as the geo-fence information. In addition, the disclosure also provides a geo-fence setting system.

The invention discloses an intelligent robot charging method and an automatically-charged intelligent robot. The intelligent robot charging method comprises the following steps: S1, when the intelligent robot moves within a set virtual wall, monitoring a photosensitive sensor; S2, when a light intensity value measured by the photosensitive sensor surpasses a light intensity threshold, determining position coordinates of the current intelligent robot and recording the position coordinates; S3, judging whether the battery electric quantity of the intelligent robot is lower than an electric quantity threshold, if so, running S4, and otherwise, repeating the S3; S4, moving the intelligent robot to any position coordinates, and charging a solar battery on the intelligent robot through light energy. By recording a proper illumination site when the intelligent robot works, and moving the intelligent robot to the illumination site when the electric quantity of the intelligent robot is lower than the electric quantity threshold, the working efficiency and the charging efficiency of the intelligent robot are improved and the cruising power of the intelligent robot is further enhanced.

A fluid interface port in a microfluidic system and a method of forming the fluid interface port is provided. The fluid interface port comprises an opening formed in the side wall of a microchannel sized and dimensioned to form a virtual wall when the microchannel is filled with a first liquid. The fluid interface port is utilized to fill the microchannel with a first liquid, to introduce a second liquid into the first liquid and to eject fluid from the microchannel.

The invention discloses a virtual wall system applied to a mobile device and a realization method thereof. The virtual wall system applied to the mobile device comprises a communication module, an interaction module and an obtaining module, wherein the communication module is mainly used for transmitting relevant map information, virtual wall information, positioning information and task information, and achieves a bridge effect; the interaction module is used for setting, adding or deleting virtual wall information in any shape by a user through graphical editing environment, and sends the information to an intelligent moving algorithm processing part; the obtaining module obtains virtual wall information provided by the interaction module, and performs relevant data storage. The system and the realization method have the advantages that additional auxiliary hardware equipment can be produced without additional cost; the use is more convenient, flexible and fast.

A method and system for protecting a wireless network by establishing virtual walls to confine wireless connection to devices located within a three-dimensional region. A network of wireless monitoring nodes is established at physical locations. The monitoring nodes are arranged in a frame of reference and determine locations of one another and of mobile nodes by conducting measurements of either roundtrip travel time of signals sent and received or of differences in the times of receiving a signal at different known locations. Initially mobile nodes are placed, sequentially, in a triangle at a boundary to be established as a virtual wall for confining communication within the wireless network. The mobile node locations are then stored. The position of a device requesting admission to the wireless network is similarly determined and, if within the established virtual walls, the device may be admitted to the network. Admission is otherwise denied.

The invention discloses a robot virtual wall system. The robot virtual wall system comprises a motion device, an electronic map 1, a virtual wall module and a storage device; the motion device is usedfor controlling a robot to realize motion; the electronic map 1 is used for describing the information of an environment where the robot is located; the virtual wall module is used for performing regional division on the electronic map 1 so as to form virtual walls; and the storage device is used for storing the electronic map of the environment where the robot is located. The robot virtual wallsystem of the invention can draw regions on the electronic map of the environment where the robot is located, so that the robot can walk in the regions; and such kind of method of directly drawing thevirtual walls on the electronic map can facilitate a user to set the virtual walls and can reduce the cost of robot manufacture.

Methods and systems for locating a portable device in an enclosure having a location defining a virtual wall are provided. The system includes first and second infrared (IR) transmitters directed to opposite sides of the virtual wall. Each of the transmitters is configured to selectively transmit an interfering IR signal (IIS) and a data signal including a corresponding transmitter location ID.

The invention discloses a robot and a robot control method, and belongs to the field of smart homes. The robot comprises a control unit. According to the configuration of the control unit, a virtual wall is recognized according to a signal threshold value and a virtual wall signal detected through a detection assembly; when the virtual wall is recognized, the signal threshold value is adjusted; and the robot is controlled to advance along the outer side of the virtual wall according to the adjusted signal threshold value and the virtual wall signal, and drive wheels of the robot are located on the outer side of the virtual wall. The problems that when only one large signal threshold value is set, the drive wheels of the robot step into the virtual wall, or when only one small signal threshold value is set, misjudgment happens, consequently, user intervention is needed, and full-automatic cleaning of the complex environment is hard are solved. The effects that on the basis of accurately recognizing the virtual wall, it is kept that when the robot advances on the outer side of the virtual wall, the drive wheels of the robot are located on the outer side of the virtual wall and do not enter the inner area of the virtual wall are achieved.

The embodiment of the invention discloses video monitoring method, system and device based on a virtual wall. A section with any shape is used as the virtual wall in a monitoring video according to a pre-acquired video image, and target characteristics used for triggering the warning are set. The method comprises the steps of: acquiring a video image in the monitoring video; analyzing the content of the video image, obtaining characteristic information and motion track information of a moving target in the video image; and when the characteristic information of the moving target accords with the target characteristics, judging that the moving target passes through the virtual wall according to the motion track information of the moving target. The video monitoring is carried out by applying the embodiment of the invention, because the monitoring range of the set virtual wall is far more than that of the line section in a video trip, the accuracy of the video monitoring is improved, and an intruder is not easy to evade.

The invention relates to a display interface control method and system. The display interface control method comprises the following steps: obtaining the layout information of each display unit of a video wall and generating a virtual wall on a mobile control terminal according to the layout information, wherein the virtual wall comprises a plurality of virtual display units which correspond to the display units of the video wall one to one; respectively displaying the contents of the display units of the video wall on the virtual wall so as to obtain a virtual display interface; reading an operation instruction input by a user for a selected virtual display unit on the virtual wall; and operating the virtual display interface according to the operation instruction and mapping the operated display interface on the video wall. The display interface control method and system provided by the invention are capable of improving the effect of controlling the corresponding display interface of the video wall through the mobile control terminal.

The invention discloses a method for intelligent human-computer interaction hoisting operation of a crane, and a moment limiter applied to the operation. The method comprises the following steps: receiving operation parameters input by a user; screening out all working conditions according with the operation parameters according to the operation parameters, wherein the working conditions comprise working condition information; selecting one working condition from the screened working conditions as a current work condition according to the input of the user; and instructing the crane to execute corresponding operation according to the current working condition. According to the method, the working efficiency is improved for the user by introducing new functions of hoisting planning and working condition simulation, brand new experience is provided for the user from performance and operation, the user is guided to correctly use the moment limiter by graphical selective working conditions combined with FLASH animations, the trouble due to the fact that the user cannot use the moment limiter is reduced, and the function of a virtual wall is introduced to enhance safety.

The invention discloses a moving control method of a robot and the robot. The moving control method comprises the steps that position information of two adjacent obstacles located on the two sides of the robot is obtained along the moving direction of the robot or along the perpendicular direction of the moving direction, and the distance between the two adjacent obstacles are calculated; whether the distance between the two adjacent obstacles is no more than a first preset distance is judged; if the distance between the two adjacent obstacles is no more than the first preset distance, a virtual obstacle boundary is arranged between the two adjacent obstacles; and the moving route of the robot is controlled in terms of the virtual obstacle boundary. By means of the method, an external virtual wall generating device does not need to be adopted, and the robot can complete setting of the virtual obstacle boundary, so that the cost is saved effectively.

The disclosed virtual wall system for a self-walk device comprises: a self-walk device with a steering device, a connected controller, at least a signal emitter, and a receiver; at least a virtual wall generator with a signal receiver, an audio emitter, a signal controller. Wherein, then walking, the signal receiver receives signal, the controller controls the audio generator to produce audio, the audio receiver receives the signal, and the controller forces the device steering.

The invention provides a door region identification method, a door region identification system and a cleaning robot. Through obtaining a raster map in the home environment, an irrelevant region and aregion to be treated are obtained by segmenting the raster map, then the characteristic value of the region to be treated is obtained to obtain a first region and a second region, region separated signs are conducted, preset parameters of a door region are obtained, matching modules are generated according to the preset parameters, and finally, a whole scan is conducted by using the matching modules and the signs to identify the door region. According to the door region identification method, the door region identification system and the cleaning robot, through optimizing internal arithmetic,without the help of virtual wall equipment, the mobile robot can use the characteristic value of the door region to match data, finally, the position of the door region is identified through the matching modules, region separated cleaning can be conducted by the mobile robot through taking the position of the door region as a boundary, the region separated cleaning autonomously is achieved, the manufacture cost is saved, and user experience is improved.

The invention relates to the technical field of intelligent home appliances, in particular to a control method and a control system for a sweeping robot. The control method comprises the steps of: identifying a label on virtual wall equipment; parsing the label to obtain restriction information; making a restriction mark on a grid map according to the restriction information; setting a region of the restriction mark to be a restricted cleaning region; and controlling the sweeping robot to execute a cleaning task according to the current grid map. According to the control method and the controlsystem, the restriction information is acquired through identifying the label, the restriction mark is made on the grid map according to the restriction information, the restricted cleaning region isformed according to the restriction mark, and the sweeping robot is controlled to execute the cleaning task according to the updated grid map after the restricted cleaning region is formed; and the control method and the control system aim to solve the problems that magnetic strips are difficult to be flattened after being curled and the user is prone to trip after using the magnetic strips sincethe existing method of controlling the sweeping robot is characterized by laying the magnetic strips on the floor to form a restricted region in an enclosed manner.

A cleaning system including a first virtual wall, a second virtual wall and a cleaning robot is disclosed. The first virtual wall includes a first specific pattern. When a light emits the first specific pattern, a first specific reflected light is generated. The second virtual wall includes a second specific pattern. When the light emits the second specific pattern, a second specific reflected light is generated. The cleaning robot, based on the first and the second specific reflected lights, obtains and records positions of the first and the second virtual walls. The cleaning robot defines a first virtual line according to the recorded positions. A traveling path of the cleaning robot is limited by the first virtual line.

The invention discloses an implementation method of enabling a mobile robot to perform virtual wall obstacle avoidance through a computer client. The implementation method includes the following steps: 1) establishing a connection with a mobile robot through a computer client; 2) utilizing an interface provided by the mobile robot to obtain the information and map transmitted from the mobile robot, and displaying the map on an interactive interface of the computer client; and 3) adding any shape of virtual walls at any specified positions on the map of the interactive interface. The implementation method of enabling a mobile robot to perform virtual wall obstacle avoidance through a computer client is applied to the navigation obstacle avoidance behavior related with the mobile robot, and can add, edit and delete virtual walls on the map of the mobile robot through the computer client. Based on the pure software mode, the implementation method of enabling a mobile robot to perform virtual wall obstacle avoidance through a computer client does not need extra auxiliary equipment to realize virtual wall obstacle avoidance for the mobile robot and limit the moving range of the mobile robot. The implementation method of enabling a mobile robot to perform virtual wall obstacle avoidance through a computer client has the advantages of low cost and high precision, and can flexibly switch or change the position and the shape of the virtual walls according to the specific conditions.

The invention aims to provide a navigation route planning method and navigation route planning equipment. The navigation route planning method comprises the steps of: acquiring global geographical environment information and virtual wall information preset by a user; constructing a global environmental map based on the global geographical environment information; acquiring a navigation task set onmobile equipment by the user, wherein the navigation task comprises a destination position; and planning and screening an optimal navigation route for the navigation task on the global environmentalmap based on the destination position, the preset virtual wall information and an acquired initial position of the mobile equipment. Thus, the collision-free route planning can be carried out for thenavigation task by means of the preset virtual wall information without an additional cost and without generating additional auxiliary hardware equipment, the usage is more convenient, flexible and rapid, costs of manpower, material resources and the like are saved, the navigation is more convenient and intelligent, and the planned and screened optimal navigation route is more precise.

Provided herein is a multi-functional moving floor device for interacting with virtual environments. Generally, the moving floor device has a substantially hemispherical body with a flat top surface and an inner core, a control module, an action module, a wall module, a computing unit communicably connected with the control module, the action module, the wall module and a virtual reality system with means to activate and deactivate the device and a power module. The moving floor devices may comprise wall-like structures and may simulate virtual walls. Also provided is a user-customized method for interacting with virtual reality via the multi-functional moving floor device.

The invention relates to a virtual wall system, which comprises a self-walking device and at least one fixed device, wherein the self-walking device comprises an infrared receiving device and also comprises a first ultraviolet emitting device; the fixed device comprises an infrared emitting device and also comprises a first ultraviolet receiving device and a switch module which are mutually connected; and when the first ultraviolet receiving device receives ultraviolet rays emitted by the first ultraviolet emitting device, the switch module turns on the infrared emitting device. By the utilization of the characteristics that the ultraviolet rays have low energy consumption and weak penetrability compared with the infrared rays, the infrared emitting device of the self-walking device is in a turn-on state only near the boundary of a virtual wall. The infrared emitting device does not need to be in a continuous turn-on state, so that electric energy consumption can be saved compared with the traditional technology.

A cleaning system including a first virtual wall, a second virtual wall and a cleaning robot is disclosed. The first virtual wall includes a first specific pattern. When a light emits the first specific pattern, a first specific reflected light is generated. The second virtual wall includes a second specific pattern. When the light emits the second specific pattern, a second specific reflected light is generated. The cleaning robot, based on the first and the second specific reflected lights, obtains and records positions of the first and the second virtual walls. The cleaning robot defines a first virtual line according to the recorded positions. A traveling path of the cleaning robot is limited by the first virtual line.

The invention puts forward a light spot emission device and a method for detecting a geometric light spot. The light spot emission device comprises a shell, a lens, a light spot size regulator, a light spot shape sheet, a regulation guide rail and a light source, wherein the lens, the light spot size regulator, the light spot shape sheet, the regulation guide rail and the light source are arrangedin the shell; after light emitted from the light source is projected to the light spot shape sheet, the light is amplified through the lens to form the geometric light spot of which the shape corresponds to the shape of the light spot; the regulation guide rail is arranged along a light spot spreading direction; and the light spot size regulator regulates the light spot shape sheet and / or lightsource to move along the guide rail to regulate the size of the geometric light spot. Through one light spot emission device or the combination of a plurality of light spot emission devices, various virtual wall modes are realized. By use of the device, the problem of light spot detection in a visual virtual wall positioning process is solved, and light spot detection accuracy can be improved.