CN109764802B - System and method for constructing virtual space model based on wireless induction signals - Google Patents
System and method for constructing virtual space model based on wireless induction signals Download PDFInfo
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Abstract
The invention has proposed a system and method based on that the wireless induction signal constructs the virtual space model, through setting up the wireless signal transmitting device in the key position of the building face, gather the wireless signal intensity, and the included angle of signal source and multi-channel signal receiving device through the multi-channel signal receiving device connected with portable intelligent terminal equipment, and then position each wireless signal transmitting device, thus position the building face, set up the three-dimensional model of the whole building, simple and high-efficient, can save a large amount of measurement and time of drawing for the designer, the space model data obtained by this method are accurate, unanimous with the actual space data, the data are true without error; for each wall, a three-dimensional model of the wall can be simulated only by positioning four vertex angles at least, and the positions of doors and windows can be simulated, so that the wall is efficient and convenient; the modeling method of the invention directly images on the portable mobile equipment, has simple operation, does not need professional mapping knowledge and has wide audience.
Description
Technical Field
The invention relates to the field of three-dimensional modeling, in particular to a system and a method for constructing a virtual space model based on wireless induction signals.
Background
At present, in the field of building space measurement, in order to obtain a three-dimensional space model inside and outside a building, a method adopted generally includes the steps of manually measuring the length and width dimensions of a wall and the thickness of the wall, then making a planar house type diagram, and then virtually rendering the planar house type diagram into a 3D three-dimensional building space model diagram, or virtually simulating house type data through VR software. The manual operation links are too many, the subsequent processing workload is large, and the efficiency is low.
As a new research hotspot in the current information field, the wireless sensor network integrates the interdisciplinary disciplines of multiple technologies such as a sensing technology, a microelectronic technology, a network technology, a wireless communication technology, an embedded technology, a distributed computing processing technology and the like, and the related range is very wide, so that the related research content is very rich, and all countries in the world carry out research on various aspects of the wireless sensor network at present.
With the rapid development and the increasing maturity of micro-electro-mechanical systems, power consumption radio communication technology, embedded computing technology, micro-sensor technology and integrated circuit technology, it is realized that a large number of low-cost, low-power consumption, small-volume, short-distance communication multifunctional micro-sensors are self-organized into a Wireless Sensor Network (WSN) through wireless links. The WSN has been widely applied to various fields such as military affairs, traffic, environmental monitoring and forecasting, health care, space exploration and the like, is concerned about the current world, and has emerged in a plurality of research hotspot fields.
Disclosure of Invention
In view of the above, the present invention provides a system and a method for constructing a virtual space model based on wireless sensing signals.
The technical scheme of the invention is realized as follows: the invention provides a system for constructing a virtual space model based on wireless induction signals, which comprises a plurality of wireless signal transmitting devices (1), a multi-channel signal receiving device (2) and a portable intelligent terminal device (3), wherein the wireless signal transmitting devices (1) and the portable intelligent terminal device (3) are respectively in signal connection with the multi-channel signal receiving device (2), wherein,
the wireless signal transmitting device (1) is arranged at a key position of a building surface and transmits a wireless signal to the multi-channel signal receiving device (2);
the multi-channel signal receiving device (2) receives the wireless signals, identifies the intensity of the wireless signals and the included angle between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2), and sends the intensity data of the wireless signals and the included angle data between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2) to the portable intelligent terminal equipment (3);
the portable intelligent terminal equipment (3) is used for calculating the distance between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2) according to the intensity data of the wireless signals; establishing a space coordinate system by taking the position of the multi-channel signal receiving device (2) as an original point, and positioning the position of the wireless signal transmitting device (1) on the space coordinate system by taking the distance and the included angle between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2); sequentially connecting the positions of the wireless signal transmitting devices (1) on a space coordinate system to generate a plane model representing a building surface; and sequentially establishing plane models of the ground, the wall and the top surface, and combining to obtain a three-dimensional space model of the whole building.
On the basis of the technical scheme, the optimal building surface key position comprises the vertex angle position of the wall surface or the ground and the vertex angle position of the door and window.
On the basis of the technical scheme, preferably, four wireless signal transmitting devices (1) are arranged and are respectively arranged at four vertex angles of the building surface.
On the basis of the above technical solution, preferably, the wireless signal transmitting device (1) adopts a ZigBee node, and the multi-channel signal receiving device (2) adopts a ZigBee network coordinator.
On the basis of the technical scheme, preferably, the wireless signal transmitting device (1) adopts a UWB tag, and the multi-channel signal receiving device (2) adopts a UWB positioning signal receiver.
On the basis of the above technical solution, preferably, the wireless signal transmitting device (1) adopts a bluetooth transmitting module, and the multi-channel signal receiving device (2) adopts a bluetooth receiving module.
On the basis of the technical scheme, preferably, the multichannel signal receiving device (2) and the portable intelligent terminal device (3) are integrally arranged or are connected through a data line.
On the basis of the technical scheme, preferably, the portable intelligent terminal device (3) comprises a smart phone or a tablet computer.
On the basis of the above technical solution, preferably, the multi-channel signal receiving apparatus (2) comprises a signal receiving module (21), a circuit conditioning module (22), a digital/analog conversion module (23), a processing module (24) and a communication module (25) which are connected in sequence by signals, wherein,
a signal receiving module (21) which receives a wireless signal and generates an analog signal;
the circuit conditioning module (22) is used for amplifying and filtering the analog signals and then sending the analog signals to the digital/analog conversion module (22);
a digital/analog conversion module (23) for converting the analog signal into a digital signal and sending the digital signal to a processing module (24);
and the processing module (24) is used for identifying the digital signals, calculating the intensity of the wireless signals and the included angle between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2), and sending the intensity data of the wireless signals and the included angle data between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2) to the portable intelligent terminal equipment (3) through the communication module (25).
In a second aspect, the present invention provides a method for constructing a virtual space model based on wireless sensing signals, comprising the following steps,
s1, respectively arranging a plurality of wireless signal transmitting devices (1) at key positions of a building surface;
s2, receiving the wireless signals transmitted by the wireless signal transmitting device (1) through the multi-channel signal receiving device (2), and identifying the intensity of the wireless signals and the included angle between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2);
s3, calculating the distance between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2) according to the intensity data of the wireless signal through the portable intelligent terminal device (3); establishing a space coordinate system by taking the position of the multi-channel signal receiving device (2) as an original point, and positioning the position of the wireless signal transmitting device (1) on the space coordinate system by taking the distance and the included angle between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2);
s4, connecting the positions of the wireless signal transmitting device (1) on the space coordinate system in sequence to generate a plane model representing the building surface;
and S5, sequentially establishing plane models of the ground, the wall surface and the top surface, and combining to obtain a three-dimensional space model of the whole building.
Compared with the prior art, the system and the method for constructing the virtual space model based on the wireless induction signals have the following beneficial effects:
(1) the wireless signal transmitting devices are arranged at key positions of the building surface, the multichannel signal receiving devices connected with the portable intelligent terminal equipment are used for acquiring the strength of wireless signals and the included angle between a signal source and the multichannel signal receiving devices, and then each wireless signal transmitting device is positioned, so that the building surface is positioned, a three-dimensional model of the whole building is established, simplicity and high efficiency are realized, a large amount of measuring and drawing time can be saved for designers, the space model data obtained by the method is accurate and consistent with actual space data, and the data is real and has no error;
(2) for each wall, a three-dimensional model of the wall can be simulated only by positioning four vertex angles at least, and the positions of doors and windows can be simulated, so that the wall is efficient and convenient;
(3) the ZigBee, UWB or Bluetooth positioning technology is adopted, so that the positioning precision is high, and the energy consumption is low;
(4) the modeling method of the invention directly images on the portable mobile equipment, has simple operation, does not need professional mapping knowledge and has wide audience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a top view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1, the system for constructing a virtual space model based on wireless sensing signals of the present invention includes a plurality of wireless signal transmitting devices 1, a multi-channel signal receiving device 2 and a portable intelligent terminal device 3, wherein the wireless signal transmitting devices 1 and the portable intelligent terminal device 3 are respectively in signal connection with the multi-channel signal receiving device 2.
The wireless signal transmitting device 1 is arranged at a key position of a building surface and transmits a wireless signal to the multi-channel signal receiving device 2. Specifically, the wireless signal transmitting device 1 adopts a ZigBee node, wherein, the building surface key position includes the apex angle position of wall or ground, door and window apex angle position. Specifically, four wireless signal transmitting devices 1 are arranged and are respectively arranged at four vertex angles of the building surface. Therefore, the three-dimensional model of the whole wall body can be simulated by positioning the positions of the four vertex angles. Specifically, the air transmission rate of the wireless signal transmitting device 1 reaches 250K BPS, the effective real-time data transmission rate reaches 4K SPS, and the effective indoor communication distance can reach 100 meters.
And the multichannel signal receiving device 2 receives the wireless signals, identifies the intensity of the wireless signals and the included angle between the corresponding wireless signal transmitting device 1 and the multichannel signal receiving device 2, and sends the intensity data of the wireless signals and the included angle data between the corresponding wireless signal transmitting device 1 and the multichannel signal receiving device 2 to the portable intelligent terminal equipment 3. Specifically, the multichannel signal receiving device 2 adopts a Zigbee network coordinator. Wherein, the multi-channel signal receiving device 2 comprises a signal receiving module 21, a circuit conditioning module 22, a digital/analog conversion module 23, a processing module 24 and a communication module 25 which are connected in sequence by signals, wherein,
a signal receiving module 21 for receiving wireless signals and generating analog signals;
the circuit conditioning module 22 amplifies and filters the analog signal and then sends the amplified and filtered analog signal to the digital-to-analog conversion module 23;
a digital/analog conversion module 23 for converting the analog signal into a digital signal and sending the digital signal to the processing module 24;
and the processing module 24 is used for identifying the digital signals, calculating the intensity of the wireless signals and the corresponding included angle between the wireless signal transmitting device 1 and the multi-channel signal receiving device 2, and sending the intensity data of the wireless signals and the corresponding included angle data between the wireless signal transmitting device 1 and the multi-channel signal receiving device 2 to the portable intelligent terminal equipment 3 through the communication module 25.
The design characteristics of the multichannel signal receiving apparatus 2: a) an ultra-low power consumption design is adopted; b) the wireless signal transmitting device 1 automatically turns off the power supply or is put in a sleep mode when not transmitting a wireless signal; c) the signal receiving module 21 adopts a BEETECH wireless sensor, and can realize 'simultaneous' sleep and 'simultaneous' wake-up; d) the power supply of the multichannel signal receiving device 2 adopts a micro vibration generator and solar dual power supply mode; e) LED red and green glimmer indicator lamps adopted by the multichannel signal receiving device 2; f) the shell of the multichannel signal receiving device 2 is made of ZnSe or diamond material with extremely strong signal and light transmittance.
The portable intelligent terminal device 3 calculates the distance between the wireless signal transmitting device 1 and the multi-channel signal receiving device 2 according to the intensity data of the wireless signals; establishing a space coordinate system by taking the position of the multi-channel signal receiving device 2 as an original point, and positioning the position of the wireless signal transmitting device 1 on the space coordinate system by taking the distance and the included angle between the wireless signal transmitting device 1 and the multi-channel signal receiving device 2; sequentially connecting the positions of the wireless signal transmitting devices 1 on a space coordinate system to generate a plane model representing a building surface; and sequentially establishing plane models of the ground, the wall and the top surface, and combining to obtain a three-dimensional space model of the whole building. Specifically, the portable intelligent terminal device 3 includes a smart phone or a tablet computer. The multichannel signal receiving device 2 and the portable intelligent terminal device 3 are integrally arranged or are connected through a data line.
Example 2
This embodiment is basically the same as embodiment 1, except that the wireless signal transmitting apparatus 1 of this embodiment employs a UWB tag, and the multichannel signal receiving apparatus 2 employs a UWB positioning signal receiver.
In the case of the example 3, the following examples are given,
the present embodiment is basically the same as embodiment 1, except that the wireless signal transmitting apparatus 1 of the present embodiment employs a bluetooth transmitting module, and the multichannel signal receiving apparatus 2 employs a bluetooth receiving module.
As shown in fig. 2, the method for constructing a virtual space model based on wireless sensing signals of the present invention comprises the following steps,
s1, respectively arranging a plurality of wireless signal transmitting devices 1 at four vertex angles on the ground, wherein the vertex angles are marked as A1, A2, A3 and A4;
s2, the position of the multichannel signal receiving device 2 is marked as O, the multichannel signal receiving device receives the wireless signals transmitted by the wireless signal transmitting device 1, and the intensity of the wireless signals and the corresponding included angle between the wireless signal transmitting device 1 and the multichannel signal receiving device 2 are identified;
s3, calculating the distances between the wireless signal transmitting apparatus 1 and the multi-channel signal receiving apparatus 2, namely OA1, OA2, OA3 and OA4, according to the intensity data of the wireless signals through the portable intelligent terminal device 3; establishing a space coordinate system by taking the position O of the multichannel signal receiving device 2 as an origin, and positioning the position of the wireless signal transmitting device 1 on the space coordinate system, namely the positions of the points A1, A2, A3 and A4 relative to the point O by taking a distance included angle between the wireless signal transmitting device 1 and the multichannel signal receiving device 2;
s4, connecting points A1, A2, A3 and A4 in sequence to generate a plane model representing a building surface;
and S5, sequentially establishing plane models of the ground, the wall surface and the top surface, and combining to obtain a three-dimensional space model of the whole building.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A system for constructing a virtual space model based on wireless sensing signals is characterized in that: comprises a plurality of wireless signal transmitting devices (1), a multi-channel signal receiving device (2) and a portable intelligent terminal device (3), wherein the wireless signal transmitting devices (1) and the portable intelligent terminal device (3) are respectively in signal connection with the multi-channel signal receiving device (2), wherein,
the wireless signal transmitting device (1) is arranged at a key position of a building surface and transmits a wireless signal to the multi-channel signal receiving device (2);
the multi-channel signal receiving device (2) receives the wireless signals, identifies the intensity of the wireless signals and the included angle between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2), and sends the intensity data of the wireless signals and the included angle data between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2) to the portable intelligent terminal equipment (3);
the portable intelligent terminal equipment (3) is used for calculating the distance between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2) according to the intensity data of the wireless signals; establishing a space coordinate system by taking the position of the multi-channel signal receiving device (2) as an original point, and positioning the position of the wireless signal transmitting device (1) on the space coordinate system by taking the distance and the included angle between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2); sequentially connecting the positions of the wireless signal transmitting devices (1) on a space coordinate system to generate a plane model representing a building surface; sequentially establishing plane models of the ground, the wall and the top surface, and combining to obtain a three-dimensional space model of the whole building;
the wireless signal transmitting device (1) adopts a Bluetooth transmitting module, and the multi-channel signal receiving device (2) adopts a Bluetooth receiving module;
the multichannel signal receiving device (2) and the portable intelligent terminal equipment (3) are arranged in an integrated mode.
2. The system for constructing a virtual space model based on wireless sensor signals of claim 1, wherein: the building surface key position comprises the vertex angle position of a wall surface or the ground and the vertex angle position of a door or a window.
3. The system for constructing a virtual space model based on wireless sensor signals of claim 1, wherein: the number of the wireless signal transmitting devices (1) is four, and the four wireless signal transmitting devices are respectively arranged at four vertex angles of a building surface.
4. The system for constructing a virtual space model based on wireless sensor signals of claim 1, wherein: the portable intelligent terminal device (3) comprises a smart phone or a tablet computer.
5. The system for constructing a virtual space model based on wireless sensor signals of claim 1, wherein: the multi-channel signal receiving device (2) comprises a signal receiving module (21), a circuit conditioning module (22), a digital/analog conversion module (23), a processing module (24) and a communication module (25) which are connected in sequence by signals, wherein,
a signal receiving module (21) which receives a wireless signal and generates an analog signal;
the circuit conditioning module (22) is used for amplifying and filtering the analog signals and then sending the analog signals to the digital/analog conversion module (23);
a digital/analog conversion module (23) for converting the analog signal into a digital signal and sending the digital signal to a processing module (24);
and the processing module (24) is used for identifying the digital signals, calculating the intensity of the wireless signals and the included angle between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2), and sending the intensity data of the wireless signals and the included angle data between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2) to the portable intelligent terminal equipment (3) through the communication module (25).
6. A method for constructing a virtual space model based on wireless induction signals is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1, respectively arranging a plurality of wireless signal transmitting devices (1) at key positions of a building surface;
s2, receiving the wireless signals transmitted by the wireless signal transmitting device (1) through the multi-channel signal receiving device (2), and identifying the intensity of the wireless signals and the included angle between the corresponding wireless signal transmitting device (1) and the multi-channel signal receiving device (2);
s3, calculating the distance between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2) according to the intensity data of the wireless signal through the portable intelligent terminal device (3); establishing a space coordinate system by taking the position of the multi-channel signal receiving device (2) as an original point, and positioning the position of the wireless signal transmitting device (1) on the space coordinate system by taking the distance and the included angle between the wireless signal transmitting device (1) and the multi-channel signal receiving device (2);
s4, connecting the positions of the wireless signal transmitting device (1) on the space coordinate system in sequence to generate a plane model representing the building surface;
s5, sequentially establishing plane models of the ground, the wall surface and the top surface, and combining to obtain a three-dimensional space model of the whole building;
the wireless signal transmitting device (1) adopts a Bluetooth transmitting module, and the multi-channel signal receiving device (2) adopts a Bluetooth receiving module;
the multichannel signal receiving device (2) and the portable intelligent terminal equipment (3) are arranged in an integrated mode.
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