GB2443856A - Distance and position measuring system for producing a model of a structure or topography - Google Patents
Distance and position measuring system for producing a model of a structure or topography Download PDFInfo
- Publication number
- GB2443856A GB2443856A GB0623045A GB0623045A GB2443856A GB 2443856 A GB2443856 A GB 2443856A GB 0623045 A GB0623045 A GB 0623045A GB 0623045 A GB0623045 A GB 0623045A GB 2443856 A GB2443856 A GB 2443856A
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- United Kingdom
- Prior art keywords
- measuring device
- measuring
- laser
- distance
- determining
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- G01S17/023—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/42—Simultaneous measurement of distance and other co-ordinates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/86—Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/14—Determining absolute distances from a plurality of spaced points of known location
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A measuring system is disclosed including a measuring device 3 for determining the distance between the measuring device 3 and a plurality of points 3a-3d on a target object 11. The measuring system includes a positioning system for determining the position of the measuring device 3 when each measurement is taken, and a storage device for recording the distance and position data. The measuring device 3 may be a scanning laser measuring device or a plurality of lasers operating at different frequencies. The position of the measuring system may be determined via a plurality of base stations, a GPS positioning device or an RFID positioning means. The system may be used to generate a two or three dimensional model of a building by moving the measuring device between measurement locations within the building. The system may further be used for mapping the internal space of a mine or tunnel, the topography of a landscape, or the relative position of vehicles at a crash site.
Description
Measuring system, method and device The invention relates to a
measuring system, method and device for measuring the dimensions, shape or topography of a structure or object. In particular, it relates to a system, method and device for collecting data for producing a computer model of the structure or object and if required its swroundings.
Electronic methods are known for obtaining distance measurement information. For example, a simple known device is an infrared measure that is used in the construction industiy and by estate agents for measuring the floor plan of a building. The infrared measure is positioned adjacent to a wall in a room and an infrared beam is emitted from the device. The beam l& reflected by an opposing wall and the device determines the thstance between the walls by measuring the time taken to receive the reflected signal. The measured value can be stored in the memoly of the device or alternatively may be recorded manually, for example on a pre-prepared drawing of the floor plan. By moving the infrared measure to appropriate locations around the room the distance between walls can be detennined and the floor plan calculated.
More sophisticated systems are also known. For example scanning laser measuring devices are also available that scan the surfaces of the interior of a room and take a multiplicity of distance measurements. The distance measurements are stored electronically in a suitable data format that enables software to produce a three dimensional computer model of the room. Initially, a wire frame model is produced by making a suitable connection between the measured points and subsequently suitable surfaces/renderings/digital photographs can be applied to those surfaces within the model. However, a problem with this type of system is that there is no relationship between the measurements taken in a first room and measurements taken in subsequent rooms, and therefore it is necessary to make additional manual measurements and/or calculations in order to determine the building's layout. This considerably increases the time taken to produce the model of the building and may lead to S-P551341_061113 inaccuracies and errors. In some instances, it is still necessary to produce diagrammatic layout maps to ensure that the measurement data for a particular room is correctly positioned within the computer model.
It is an object of the current invention to mitigate some of the afore-mentioned problems or to at least to provide an alternative arrangement to known devices.
According to one aspect of the invention there is provided a measuring system including a measuring device for determining the distance between the measuring device and a plurality of points on a target object, a positioning system for determining the position of the measuring device when measurements are taken, and a storage device for recording distance and position data.
This enables a two-dimensional map and/or a three-dimensional model of a structure to be generated from the recorded data by moving the measuring device between measurement locations. For example, in a building the measuring device can be moved from room to room to determine the size of each room. The relative positions of the rooms can be determined from the position data, which indicate the relative positions of the measuring device when distance measurements were made. Software can then be used to interpret the data in order to generate a computer model.
The measuring system can be used in other situations, for example to map/model the externaj shape or internal space of any structure, the internal space of a mine or tunnel, the topography of a landscape, or the relative position of vehicles, etc at a crash site.
The measuring system can be arranged to determine the position of the measuring device prior to taking any measurements such as when the measuring device remains static during the measurement process and / or when each measurement is taken for static and non-static embodiments.
Advantageously the measuring device may include scanning means, and the measuring device is arranged to measure the distance between the measuring device and a plurality of distributed points on the target object. Preferably the measuring device is a line of sight measuring device that is arranged to scan in three dimensions. For example, the scanning means may be arranged to scan through an arc of approximately 180 degrees in a first plane and to rotate through an angle of 360 degrees in a substantially orthogonal plane.
Preferably the scanning means is arranged to step through swept arcs and the measuring device is arranged to take a measurement at predetermined intervals within the scanning sequence.
Advantageously the measuring device may emit a beam of light or radiation. The light emitted can be in the visible spectrum or in an invisible spectrum. Advantageously the measuring device can be arranged to determine distance by determining the amount of time ittaesfortheernjttecJbeamto returnto themeasuring device.
Preferably the measuring device includes a laser measuring device. Advantageously the laser measuring device may include a plurality of lasers. This increases the rate of data collection and/or increases the accuracy of the laser measuring device since errors can be evened out by averaging the related measurements taken. For example, an average distance can be calculated by a processor device built into the measuring system or alternatively can be determined by software the data is analysed. The laser measuring device can include a first laser operating at a first frequency and a second laser operating at a second frequency.
For example, the lasers can be different diode lasers.
In some embodiments the positioning system includes a plurality of distributed base stations. Preferably the system includes a sufficient number of base stations to enable the relative position of the measuring device to be determined in two-dimensional and/or three-dimensional space. For example, the system may include at least three base stations, and preferably includes at least four base stations.
Preferably each base station includes a transmitter and/or a receiver. The receiver is useful when it is necessary to feed data from the measuring device to one or more of the base stations, for example when a local computer with a wireless communications port is not -4.-available. One or more of the base stations can include a memory device to store the data for later analysis.
Advantageously the measuring device includes a transmitter and/or a receiver. Similarly the measuring device can include a memory device for storing the measurement and position data. The data can be stored for later analysis in the measuring device or it can transmit the data to a base station or computer via a suitable connection, for example a wireless connection such as WIFI or Blue Tooth . One of the base stations or the measuring device may include a processor device to calculate the position of the measuring device.
Advantageously the measuring system includes synchronising means for synchronising the operation of the base stations. This enables, for example, the base stations to transmit signals at substantially the same instant The signals moving at the speed of light typically arrive at the measuring device at slightly different intervals due to the different distances over which the signal has to travel between each base station and the measuring device, and in some embodiments back to the base station. The distance between the base station and the measuring device can be detennined by analysing the different arrival times of the signals. The combined data from each signal can be analysed by a processor to calculate the relative position of the measuring device in two or three-dimensions. For embodiments where the base stations do not move, the accuracy is very high and consistent. For example, the base stations may be connected together by wire, optical fibre or a wireless connection. However the base stations can move if they include means for determining the relative positions of the base stations one to the other which is integrated into the position calculation.
In some embodiments the measuring system includes a Global Positioning System for determining the position of the measuring device when each measurement is taken. It is envisaged that in the future the accuracy of Global Positioning Systems that are commercially available will be sufficiently precise to enable the system to work -5.-In some embodiments the measuring system includes RFID position technology for determining the position of the measuring device when each measurement is taken.
According to another aspect of the invention there is provided a method of collecting geometric data about a stnicture or topography that can be used to produce a computer model of the structure or topography, including measuring the distance between a measuring device and a plurality of points on at least one surface of a target object, determining the positions of the measuring device when measurements are taken, and recording the distance and position data in a format that is suitable for processing to produce the computer model.
Preferably the method further includes moving the measuring device between stationary positions to scan a plurality of points on at least one other surface of the target object.
In addition or alternatively, the method may include using a poitable measuring device that is carried from room to room in a structure.
According to another aspect of the invention there is provided a laser measuring device for determining the distance between the measuring device and at least one point on at least one surface of a target object including a first laser operating at a first frequency for determining a first measurement, a second laser operating at a second frequency for determining a second measurement.
Preferably the laser measuring device includes processing means for calculating an average measurement from the first and second measurements. This increases the accuracy of the laser measuring device. Preferably the first and second lasers are diode lasers, wherein the first diode laser is different from the second diode laser.
Advantageously the laser measuring device may include at least one further laser. The greater the number of lasers included in the system the more accurate the measurement.
Preferably the or each further laser is a laser diode that is different from the first and second laser diodes.
Advantageously the laser measuring device includes scanning means, and the first and second lasers are arranged to measure the distance between the measuring device and a plurality of distributed points on at least one surface of the target object.
An embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings, wherein: Figure 1 is a schematic diagram of a first embodiment the invention; Figure 2 is a schematic diagram of a scanning measuring device for use in the first embodiment of the invention; and Figure 3 is a schematic diagram of a scanning measuring device mounted on a stand.
Figure 1 shows an electronic measuring system 1 including a distance measuring device 3 and four base stations 5 for determining the relative position of the distance measuring device 3 in three-dimensions when taking distance measurements.
The distance measuring device 3 is a laser scanning device that is arranged to measure the distance between the device and multiple points on boundary walls that define the room.
The laser is mounted in a frame 7 such that it is rotatable through 180 in a first plane and through 360 in a second plane that is substantially orthogonal to the first plane. For example, the first plane may be a vertical plane and the second plane a horizontal plane.
This enables the laser to scan a substantial part of the room in three dimensions. The laser is driven by an incrementally adjustable motor such as a stepping motor or an electronically controlled servo motor. The resolution of the scanning device is determined by the number of measurement positions within a 360 rotation of the laser. Preferably the resolution of the measurements is in the range 0.250 to 2 in both the vertical and horizontal planes. Other ranges may be more appropriate depending upon the nature of the article being measured.
The measuring device 3 includes a handle 9 and/or an attachment for a stand. Thus the measuring device 3 can be carried by the user during a measurement operation or alternatively it can be fitted to a stand which can be moved between rooms after each scanning process. Thus the measuring device can be arranged to take measurements when mobile or when stationary. If stationary, fewer position measurements may be required.
For example, the position of the measuring device can be determined before distance measurements are made and that position data can be associated with each of the distance measurements taken until the measuring device is moved to another position. In subsequent rooms, the relative position can be established prior to taking further distance measurements and the new position data can be associated with the subsequent distance measurements. Alternatively, relative position measuring can be done on a continuous basis and associated with the distance measurements as they are taken for static and mobile arrangements. For continuous position measurement, the greater the frequency of position measurements taken the more accurate the position will be for non-static applications.
Each base station 5 includes a transmitter for emitting signsil to the measuring device 3.
Each base station 5 is synchronised such that the signals transmitted from the base stations are transmitted at substantially the same instant. The signals will arrive at a receiver in the laser device at slightly different times because the measuring device in most instances will be located at different distances from each of the base stations 5. From the liming information from each of the signals the relative position of the measuring device 3 can be determined. The position information is stored in the memory device together with the measurement data.
The memory device may be any suitable type, for example, random access memory (RAM), memory that is transferable for example flash memory or a portable hard disk drive. Alternatively a hard disk drive can be included in the measuring device 3 with some kind of suitable transfer means, for example a IJSB, serial or parallel port. Alternatively, the measuring device 3 may include a wireless system for transmitting data recorded. For example, the measuring device 3 may include V/IF!, Blue Tooth , radio technology or a network device, for example that communicates via a telephone network.
Preferably the measuring system includes at least three base stations 5 when providing a two-dimensional map, for example of a floor plan of a building and four base stations 5 when producing a three-dimensional model of a structure or topography.
In use, the base stations 5 are connected to each other either by wire (or optical fibre) or a wireless coimection such as WIFI or Blue Tooth and a synchronisation process is then initiated to ensure that each base station 5 transmits signals substantially simultaneously.
Optionally, the measuring device can be syncbronised with the base stations so that the time of flight of an emitted signal can be calculated to enable the distance between each base station 5 and the measuring device to be calculated. The base stations 5 are then distributed adjacent to the building to be modelled and are spaced apart. Preferably the base stations 5 are spread around the building though this is not critical. In this embodiment the base stations remain stationary throughout the process. The base stations 5 are activated to emit repeating signals. The particular frequency range chosen is such that sL.. .__.1I_ 41.. L..1J... *........1 %#tIfl..t&aflJ}flJ.J.3 WA ttfl IV 14110 l.'A 41% n"41b t%tsfl 41*W1t4A%%I WV 414a#144 significant degradation of the signals.
The user takes the measuring device 3 into the first room in the building and mounts it on top of a stationary stand. The receiver in the measuring device detects the signals transmitted from the base stations 5 and the differences in the time of arrival are recorded in the memory device so that it is possible to determine the relative position of the measuring device when measurements are made since the base stations do not move. It is only necessary to determine the relative position of the measuring device each time it is moved within a room or between rooms. This of course assumes that the device will remain stationary for the entire scanning process. The user then initiates the measuring device 3 to scan the room with the laser measurement tool. The laser emits pulses of radiation 3a-d to measure the distance of a multiplicity of points on the walls, ceiling and floor defining the boundary ii of the room (see Figure 3). The measurement data is stored in the memory device together with the data determining the position of the device when each measurement was made.
When the entire room has been scanned the user moves the measuring device 3 into each subsequent room. The system measures the position of the measuring device 3 before or during a new scanning operation, as appropriate. The measuring device 3 records the measurement data for each subsequent room and the relative position of the measuring device when each measurement is made.
When all of the data has been recorded the data is transferred to a computer and input into modelling software to generate a computer model of the building. The size and shape of each room is determined from the distance measurement data relating to each room and the relative positions of each of the rooms is determined by the position data.
If desired rendering or digital photographs can be applied to the model to make the model more lifelike.
It is envisrnred that as an alternative to mounting the laser scanning device on a stationary mount, the user may simply hold the measuring device in his hand and walk between rooms, with the laser continuously scanning each room. In this case, it is necessary to update the position data on a continuous basis.
One of the base stations 5 or an adjacent computer may include appropriate receiver means to receive transmission of the data either dynamically during a recording process or when a measuring process has been completed.
A plurality of scanning processes may be undertaken in a single room in order to better define a room having a complex shape. The recorded data can then be merged to produce an accurate model of the room. The measuring device 3 may include a multiple headed laser system that enables an increased rate of data collection and enables error adjustment to be evened out by averaging the related measurements taken from the multiple head. This will further improve the accuracy of the device.
It is anticipated that the system may have applications for measuring the interior and exterior of a building using the same scanning process. This could be used for tax purposes -10-on a building to determine its relevant size, for architects when designing buildings, quantity surveyors during the building process to establish that buildings are being produced in accordance with the plans, for estate agents who need to inform their client, for properties that are being sold or rented, for the purposes of obtaining data after an accident or incident, for determining external boundaries or a property, or for route finding at exhibitions. The device could also be used for surveying the topography of landscapes or mines.
It will be appreciated by the skilled person that the relative positions of the measuring device 3 can be determined in many ways. For example, the system may be configured such that position is determined from a signal emitted from the measuring device to the base stations or a system wherein the base stations each include a transceiver device that is arranged to send signals to the measuring device and receive signals returned by the measuring device 3.
In other embodiments the base stations may move provided that the relative position of one to the other is established by sending signals between each of the base stations. This is then integrated into the calculation.
As an alternative to using the base station layout described above to provide relative positional data for the measuring device 3 when taking measurements, positional data from a satellite, or group of satellites, such as the Global Positioning System (GPS) could be used.
Another alternative that can be used to provide relative positional data for the measuring device 3 is known Radio Frequency Identification (RFID) -radar technology. This technology uses RFID tags, high gain pitch antennas and a processor unit that is capable of determining the position of the tag, which would be attached to the measuring device 3 via the signals received by the antennas. As the measuring device 3 moves the new position of the tag and hence the measuring device 3 is determined by the RFID system. The system works by measuring the distance a signal travels from a transponder to a reader. It measures the angle of arrival of the signal travelling from the transponder to the reader to give a position of location. The systems available can be used to measure positions in two or three dimensions. Some available systems have a relative position accuracy of around 1mm. For example, systems sold by Trolly Scan (Pty) Limited of South Africa can be used.
Claims (20)
- Claims 1. A measuring system including a measuring device fordetermining the distance between the measuring device and a plurality of points on a target object, a positioning system for determining the position of the measuring device when measurements are taken, and a storage device for recording distance and position data.
- 2. A measuring system according to claim 1, wherein the measuring device includes scanning means, and the measuring device is arranged to measure the distance between the measuring device and a plurality of distributed points on the target object.
- 3. A measuring system according to claim 2, wherein the scanning means is arranged to step through swept arcs and the measuring device is arranged to take a measurement at predetermined intervals within the scanning sequence.
- 4. A measuring device according to any one of the preceding claims, wherein the measuring device emits a beam of light or radiation.
- 5. A measuring system according to claim 4, wherein the measuring device includes a laser measuring device.
- 6. A measuring system according to claim 5, wherein the laser measuring device includes a plurality of lasers.
- 7. A measuring system according to claim 6, wherein the laser measuring device includes a first laser operating at a first frequency and a second laser operating at a second frequency.
- 8. A measuring system according to any one of the preceding claims, wherein the positioning system includes a plurality of distributed base stations.
- 9. A measuring system according to claim 8, wherein each base station includes a transmitter and/or a receiver.
- 10. A measuring system according to claim 8 or 9, wherein the measuring device includes a transmitter and/or a receiver.
- 11. A measuring system according to any one of claims 8 to 10, including synchronising means for synchronising the operation of the base stations.
- 12. A measuring device according to any one of the preceding claims, including a Global Positioning System for determining the position of the measuring device when each measurement is taken.
- 13. A measuring device according to any one of the preceding claims, including RFID position technology for determining the position of the measuring device when each measurement is taken.
- 14. A method of collecting geometric data about a structure or topography that can be used to produce a computer model of the structure or topography, including measuring the distance between a measuring device and a plurality of points on at least one surface of a target object, determining the positions of the measuring device when measurements are taken, and recording the distance and position data in a format that is suitable for processing to produce the computer model.
- 15. A method according to claim 14, including moving the measuring device between stationaiy positions to scan a plurality of points on at least one other surface of the target object.
- 16. A method according to claim 14 or 15, including using a portable measuring device that is carried from room to room in a structure.
- 17. A laser measuring device for determining the distance between the measuring device and at least one point on at least one surface of a target object including a first laser operating at a first frequency for determining a first measurement, a second laser operating at a second frequency for determining a second measurement.
- 18. A laser measuring device according to claim 17, including processing means for calculating an average measurement from the first and second measurements.
- 19. A laser measuring device according to claim 17 or 18, wherein the first and second lasers are diode lasers, wherein the first diode laser is different from the second diode laser.
- 20. A laser measuring device according to any one of claims 17 to 19, including scanning means, and the first and second lasers are arranged to measure the distance btveen lhe measuring Oevjct Rnd a plurality of distributed points on at least one surface of the target object.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0623045A GB2443856A (en) | 2006-11-18 | 2006-11-18 | Distance and position measuring system for producing a model of a structure or topography |
| PCT/GB2007/004403 WO2008059279A1 (en) | 2006-11-18 | 2007-11-19 | Distance measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0623045A GB2443856A (en) | 2006-11-18 | 2006-11-18 | Distance and position measuring system for producing a model of a structure or topography |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0623045D0 GB0623045D0 (en) | 2006-12-27 |
| GB2443856A true GB2443856A (en) | 2008-05-21 |
Family
ID=37605537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0623045A Withdrawn GB2443856A (en) | 2006-11-18 | 2006-11-18 | Distance and position measuring system for producing a model of a structure or topography |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2443856A (en) |
| WO (1) | WO2008059279A1 (en) |
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| EP2199828A3 (en) * | 2008-11-26 | 2010-12-01 | Riegl Laser Measurement Systems GmbH | Method for determining the position of a laser scanner relative to a reference system |
| WO2014110428A1 (en) * | 2013-01-13 | 2014-07-17 | Qualcomm Incorporated | Determining room dimensions and a relative layout using audio signals and motion detection |
| WO2016154306A1 (en) * | 2015-03-24 | 2016-09-29 | Carrier Corporation | System and method for capturing and analyzing multidimensional building information |
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| US10459593B2 (en) | 2015-03-24 | 2019-10-29 | Carrier Corporation | Systems and methods for providing a graphical user interface indicating intruder threat levels for a building |
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2006
- 2006-11-18 GB GB0623045A patent/GB2443856A/en not_active Withdrawn
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2007
- 2007-11-19 WO PCT/GB2007/004403 patent/WO2008059279A1/en active Application Filing
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Cited By (15)
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|---|---|---|---|---|
| EP2199828A3 (en) * | 2008-11-26 | 2010-12-01 | Riegl Laser Measurement Systems GmbH | Method for determining the position of a laser scanner relative to a reference system |
| WO2014110428A1 (en) * | 2013-01-13 | 2014-07-17 | Qualcomm Incorporated | Determining room dimensions and a relative layout using audio signals and motion detection |
| US10606963B2 (en) | 2015-03-24 | 2020-03-31 | Carrier Corporation | System and method for capturing and analyzing multidimensional building information |
| CN107660290A (en) * | 2015-03-24 | 2018-02-02 | 开利公司 | Integrated system for the sale of building system, installation and maintenance |
| CN107667366A (en) * | 2015-03-24 | 2018-02-06 | 开利公司 | System and method for capturing and analyzing multidimensional building information |
| US10459593B2 (en) | 2015-03-24 | 2019-10-29 | Carrier Corporation | Systems and methods for providing a graphical user interface indicating intruder threat levels for a building |
| WO2016154306A1 (en) * | 2015-03-24 | 2016-09-29 | Carrier Corporation | System and method for capturing and analyzing multidimensional building information |
| US10621527B2 (en) | 2015-03-24 | 2020-04-14 | Carrier Corporation | Integrated system for sales, installation, and maintenance of building systems |
| US10756830B2 (en) | 2015-03-24 | 2020-08-25 | Carrier Corporation | System and method for determining RF sensor performance relative to a floor plan |
| US10944837B2 (en) | 2015-03-24 | 2021-03-09 | Carrier Corporation | Floor-plan based learning and registration of distributed devices |
| US11036897B2 (en) | 2015-03-24 | 2021-06-15 | Carrier Corporation | Floor plan based planning of building systems |
| CN107667366B (en) * | 2015-03-24 | 2021-12-28 | 开利公司 | System and method for capturing and analyzing multi-dimensional building information |
| CN107660290B (en) * | 2015-03-24 | 2022-03-22 | 开利公司 | Integrated system for sale, installation and maintenance of building systems |
| US11356519B2 (en) | 2015-03-24 | 2022-06-07 | Carrier Corporation | Floor-plan based learning and registration of distributed devices |
| WO2022076871A1 (en) * | 2020-10-09 | 2022-04-14 | Sidewalk Labs LLC | Methods, systems, and media for building configuration of one or more buildings |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008059279A1 (en) | 2008-05-22 |
| GB0623045D0 (en) | 2006-12-27 |
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