91results about "Boundary marks" patented technology

A device 20 for location and identification of pipes, conduits, cables or buried or hidden objects 8 is described without the need of any invasive and/or destructive work, said device comprising at least one transponder 1 utilizing RFID or like technology for identification without any physical contact or line-of-sight, said transponder 1 being attached in a support 7 shaped as a mesh, tape, wire, cable, cordage or alternatively in a device 32/33 such as a bar, tappet, line, stud, mushroom, pipe, marker or the like, device 20 resulting from the combination of 1 and 7 or of 1 and 32/33. A system for location and identification of said objects 8 comprises said device 20 and further a reading and/or writing unit 3 of the information on said pipe, conduit, cable or buried or hidden object 8, at least an antenna 2 besides said pipe, conduit, cable or buried or hidden object 8. Also described is the method for installing device 20, the method for location and identification of a pipe, conduit, cable or buried or hidden object 8, as well as the method for mapping and execution of as-built plants of pipes, conduits, cable or buried or hidden objects 8 without the need of any invasive and/or destructive work.

A surveying system having a total station integrated into an unmanned aerial vehicle communicates with a plurality of mobile communication stations that are located on known site coordinates. By locating the mobile communication stations on known coordinates, the location of the aerial vehicle is precisely triangulated and controlled. Construction drawings are loaded into the system, thereby allowing the vehicle to locate itself at specific points designated in the drawings for the marking of on-site construction grid lines.

The present invention relates to a radio frequency identification (RFID) tag installation system using a vehicle and method thereof. The RFID tag is installed on the road to provide a driver with position information and road information such as speed limit, road name. etc in his or her traveling region. By using our present invention, RFID tag can be installed with small manpower in short a time. The system uses two CCD cameras, two GPS receivers, an INS and a DMI, and includes: a vehicle position and yaw extractor by using the two GPS receivers; orientation extractor for the vehicle by using INS, a GPS/INS/DMI integrator for GPS outage and for INS error correction; two cameras interior/exterior orientation extractor for the CCD cameras; a target position extractor for finding 3-dimensional coordinates; a road information storage for supplying road information such as a speed limit and a rout number of a road; an RFID tag writer for inputting the information obtained from the target region position extractor and the road information storage; and an RFID tag installer for attaching the RFID tag on the road.

A system designed to identify survey markers that are obscured by an accumulation of dust and dirt or overgrowth of vegetation. The system provides for automatic detection of survey markers using passive radio frequency transponder technology to detect the immediate presence of a tagged survey marker and read additional unique identification data corresponding to said marker. The operator can be signaled audibly and/or visually when a tagged survey marker is detected. The transmitter and antennae are mounted in a handheld or portable unit. An integrated microprocessor performs the requisite algorithms needed to process the reply from one or more RFID (Radio Frequency Identification) tags and generate the alert signals for the operator alerts. Once the RFID tagged survey marker has been located, it can be cleared of accumulated dust, dirt and overgrowth of vegetation to make it visible for confirming the property boundary. Handheld RFID programmers are used to load or record important identification data in the attached tag, regarding latitude-longitude location, and other pertinent survey data.

An on-line tunnel deformation monitoring system based on image analysis and its application comprises identification points, an IP camera, a central control computer, as well as a transmission network and the application of the system includes the following steps: 1) lay the identification points; 2) the central control computer controls the zoom photography of the IP camera periodically; 3) the IP camera transmits the photos to the central control computer; 4) the central control computer conducts self-adaptive filtering transformation for the photos; 5) the central control computer conducts grayscale threshold transformation; 6) the central control computer conducts image edge detection to obtain the identification points; 7) calculation of the arch crown settlement displacement and the arch springing convergence displacement of the identification points; 8) judge whether the arch crown settlement displacement and the arch springing convergence displacement are both less than the set thresholds, and if they are, return to Step 2), otherwise give an alarm.

A marker in the shape of a flat round disc that has varying permanent information (18) (for identifying different objects) imprinted upon the top of the marker that identifies the marker's use and areas for information to be permanently inscribed by a user with a portable electric en-graving tool or for temporary information to be placed thereon. The marker has a varying size holes(16), (17) through the center of the marker from top to bottom that allows different types and sizes of anchors to be used to attach the marker to varying surfaces or mounting devices or materials. The marker has an additional hole (15) for other means of attachment. The marker is solid and made of a plastic that will flex and give and is permanent and durable and is produced in varying colors for visibility and identifying different objects.

A surveyor's mark and a method for forming the mark. The mark includes a stick and a head assembled to the stick. The stick is configured to be planted in a ground and the head is configured to be above the ground. The head includes a tag having an identification number. The identification number has a value which is a first code value. The stick includes a tinny wire configured as an electrical conducting loop and connected to the tag. If the stick is planted in the ground and the head is above the ground, then pulling the head in an attempt to pull up the mark from the ground results in the head being disassembled from the stick and the tinny wire breaking so as to open the loop which changes the value of the identification number from the first code value to a second code value.

A marking and measuring device calibrated to measure and mark virtually any surface or object at regular predetermined intervals is provided. The marking and measuring device is comprised of a frame, a support member disposed on the frame configured to hold a container containing a marking substance, an actuator mounted with the frame wherein the actuator is in communication with an actuating means mounted with the frame such that the actuator may move between a discharging and non-discharging position when the actuating means sends a signal to the actuator, and at least two wheels rotatably coupled with the frame such that the at least two wheels rotate as the device is moved relative to a surface.

The invention relates to a building detection structure, in particular to a building sedimentation observation method and structure. Multiple working base points are embedded into the outer wall surface of a building, three datum points and four auxiliary datum points are embedded into engineering foundations around the building, and the auxiliary datum points are observed through the three datum points to examine the relative stability of the datum points and the auxiliary datum points; the working base points are observed through the four auxiliary datum points to collect the eccentricity to determine the sedimentation condition. The building sedimentation observation method and structure have the advantages of being simple in structure, lower in construction cost, not prone to be influenced by engineering, weather changes and heat expansion and cold contraction, smaller in measuring error and the like.

A camera monitors positions on an external object having a beacon (1(i), i=1, 2, . . . , I; 130; 430) attached to it. The apparatus has at least one image sensor (120; 321, 322; 420; 520), an imaging optical element (101) for projecting light on the image sensor (120), and a processing unit (9). The imaging optical element (101) may be non-refractive and receives a light beam (5(i); 131) transmitted from the beacon (1(i); 130; 430) and transfers the light beam (5(i); 131) to the image sensor (120; 321, 322; 420; 520).

The image sensor (120; 321, 322; 420; 520) forms image data based on the received light beam (5(i); 131) and background light. The processing unit (9) processes the image data such that it filters image data components relating to the background light and renders image data components relating to the light beam.

The invention relates to a cylinder forced centering observation pillar, which comprises a cylindrical pipe adopted as a casting template, wherein a concrete chassis integrally combined with the cylindrical pipe is wrapped on the lower portion of the cylindrical pipe, the upper portion of the cylindrical pipe is positioned on the concrete chassis on the ground surface, an upper concrete column integrally combined with the cylindrical pipe is casted in the cylindrical pipe, and a forced centering scale disk is fixedly arranged on the top surface center of the upper concrete column in the cylindrical pipe. The cylinder forced centering observation pillar embedment method comprises: 1) digging a pile hole; 2) paving foundation reinforcing steel bars, and inserting four pillar vertical ribs; 3) penetrating the cylindrical pipe through the pillar vertical ribs; 4) carrying out one-time integrated casting; and 5) casting the processed forced centering scale disk so as to complete the cylinder forced centering observation pillar embedment. With the cylinder forced centering observation pillar and the cylinder forced centering observation pillar embedment method of the present invention, the construction process is simple, the sighting eccentric influence can be eliminated, and the use effect is good.

A system for detecting localized ground position changes makes use of plurality of lighting units, each fixed to the ground. Each lighting unit comprises a positioning system and a transmitter for transmitting positioning information to a remote central processing unit. The positioning information from the plurality of fixed lighting units is processed to identify local ground position changes. The infrastructure of a networked lighting system in this way enables ground information to be determined, for example for detecting ground movement in response to natural events or man-made activities (such as tunneling, building, extraction of natural resources etc.).

The post system of the present invention is formed from a cap and a base. The cap sits flush with the ground while base system extends into the ground towards the underground hazard. The cap is removable to access a tracer station or similar mounting integrated steel plate. The cap includes a superior disk, a cap housing, and a locking mechanism. The base includes an anchor system and two telescoping assemblies nested within the base so as to raise the test station or steel plate above ground level.

An on-site pouring maintenance method of a survey monument in a high-latitude area and a low-temperature environment is characterized by comprising the following steps: (1) optimizing a cement variety; (2) choosing sand stones with small particle size, and appropriately reducing a water-cement ratio; (3) completing on-site pouring of the survey monument; (4) without taking out a template, directly backfilling with soil, so as to make flat with the ground; (5) preparing a bamboo pole support frame at a height of 3-5 cm above the standard surface; (6) covering the bamboo pole support frame with dry rice straws or stipa capillata linn and other hays with the thickness of 3-5 cm; (7) covering the rice straws with quick lime with the thickness of 5-10 cm, and allowing the quick lime to be separated by the rice straws; and (8) covering the quick lime material layer with a plastic thin film. The method has the advantages that with utilization of a theory that slaked lime and a large amount of heat are produced in a chemical reaction generated in a water absorption process of the quick lime, a heat preservation effect is played; the concrete coagulation time is greatly shortened, the maintenance function on the survey measurement is played, and a simple-operation, efficient and rapid pouring maintenance of the survey monument is achieved; and the method is low in price, simple and rapid, and efficient in heat release.

A survey monument comprises a conventional water hydrant with survey indicia or markings attached thereto. The survey indicia can be carried for example on a plate mounted on a flange bolt or attached to the operating nut of the hydrant. These survey monuments can be expanded upon and/or maintained in co-ordination with the expansion and maintenance of a municipality's water supply system. The hydrants can also be utilized in connection with any geographical information system to provide known reference points. The hydrants can also be utilized in connection with GPS devices to assist in localizing, initializing and calibrating the same.