CN102981164A - Method supporting limited irregular space positioning - Google Patents
Method supporting limited irregular space positioning Download PDFInfo
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- CN102981164A CN102981164A CN2012105182115A CN201210518211A CN102981164A CN 102981164 A CN102981164 A CN 102981164A CN 2012105182115 A CN2012105182115 A CN 2012105182115A CN 201210518211 A CN201210518211 A CN 201210518211A CN 102981164 A CN102981164 A CN 102981164A
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Abstract
The invention aims to provide a method for determining a specific target object in limited irregular functional space. Equipment, systems or schemes realized according to the method can satisfy a large number of general positioning requirements. The method considers that the limited irregular space is basically closed, such as typical scenes of a household bedroom and functional unit space therein, and whether a specific object exists in the limited irregular space or not needs to be determined. The positioning requirement considered by the method is different from the common positioning requirement. The common positioning requirement is to establish a three-dimensional or two-dimensional position describing reference system by using a certain physical point in the space as a reference point. The positioning requirement considered by the method is to determine whether the positioned object exists in a group of space units or not, that is, the position of the positioned object is described as the position of a functional space identifier. From the aspect of a positioning technology, a technology of collaborative random pulse encoding and demodulation between the positioned object and an induction receiving object is adopted, and the induction receiving object receives data to conduct correlation detection, so as to guarantee the positioning accuracy.
Description
Technical field
The present invention relates to a kind of method of in limited irregular space, determining certain objects, belong to communication and field of computer technology.
Background technology
Technology of wireless sensing network is naturally extending of existing network technology, and the distance of people and physical world is shortened dramatically, and can collect the information of physical world whenever and wherever possible, and impose suitable control.Simultaneously, the generation of radio sensing network and development are extremely important for promoting general fit calculation.Through development in recent years, wireless sensor network technology and application have begun to increase gradually, and have brought into play vital role in specific area." perception " characteristics of radio sensing network are important foundations of generic service generalization in the future.The while technology of wireless sensing network can be integrated well with Internet technology, produces the service of New Fusion type, greatly expands the space of existing business, also so that the operation of city management in the future and service is more accurate and wisdom.
The indoor positioning technology is one of the emphasis of technology of wireless sensing network research and hot spot technology.Present many indoor positioning technology are to consider an object that is positioned, with respect to a relative tertiary location of certain standard point, with this determine the to be positioned three-dimensional of object in system or the description of two-dimensional coordinate position.Such positioning requirements since in actual environment, exist a large amount of do not expect block, the unfavorable factor such as reflection, energy attenuation and space are irregular, actual effect often think tank fails to be suitable for, corresponding required " stringent condition " of theoretical research often do not possess in practice, thereby affected the various location technologies application in practice of theoretical research.
The present invention attempts to proceed from reality, and changes the form of demand, and different technical combinations and the coordinations of integrated use, satisfies the more new technique of common requirements to produce.
Summary of the invention
The object of the invention is to propose a kind of method of determining the certain objects position in limited irregular functional space, the equipment, system or the scheme that realize by the method can satisfy a large amount of general location requirement.
Consideration is in a limited irregular functional space, the space base closed, typical scene as: family room and functional unit wherein, such as parlor, toilet, living room, bedroom, balcony etc., need to be to determining whether certain objects exists in so regular or very irregular space, be present in which space, and specific motion feature.This certain objects is called the object that is positioned herein.
In this limited irregular space, also to dispose at least a specific sense object, be called the induction accepting object herein.
The basic ideas of location are, the object that is positioned attach a ultrasonic transmitter, and it is according to specific rule, and a string provisioning information coding of encoding comprises the information that identifies the object that is positioned in the coding.The ultrasound wave that carries this regulation coding is launched in this limited irregular space, is transmitted and forms repeatedly reflection.Consider that the common buildings object has preferably occlusion effect for ultrasound wave, this ultrasound wave is effectively detected by the induction accepting object of considering deployed position and direction through after certain propagation and reflecting.The common spatial dimension of this effective detection does not need to guarantee 100% space in this space in the demand of reality.Such as being positioned to liking a elderly, its range of movement is the lower middle portion space in the room, directly propagates and Multi reflection as long as suitably use, and the ultrasound wave that the object that is positioned is launched can effectively be detected in this limited irregular space.
The most basic characteristics of the present invention are, the location requirement of considering is not with respect to the reference frame of setting up the position coordinates description as a reference point of certain physical points in the space, not with the basis of air line distance value as positional representation in other words, as long as but determine that whether the object that is positioned exists, and is actually the location expression with respect to this irregular space in the specific function space.Namely this anchored object position is that a kind of ambiguous location is described from strict rectilinear coordinates value, but such location expression determines that in the set of a functional space a kind of like this location expression of which functional space is accurate.Such position statement demand ubiquity in real life, and because each functional space is to allow Fuzzy Representation in the mutual location requirement of boundary, i.e. two adjacent space A and B are if its border is open, object on its border both can be determined at A, also can determine at B.
The present invention needs configuration induction accepting object and two unit of object that are positioned at least, the communication channel that needs to exist radio sensing network between these two unit, utilize simultaneously the large covering of the fan ultrasound wave of low-power to reflect, but the characteristics that are unsuitable for penetrating are as realizing the auxiliary media of location requirement herein.
Because ultrasound wave is behind the process Multi reflection, and other ultrasound wave of existence in the space, can disturb each other.In the method, the ultrasound wave of each object emission that is positioned carries specific coding, and the induction accepting object is verified this specific coding.This is coded in the process of transmission, reflection and is subject to the interference of neighbourhood noise and reflection process, this method adopts collaborative random pulse coding and the demodulation techniques between object and the induction accepting object that are positioned, and the induction accepting object carries out correlation detection to the ultrasound wave that receives.Satisfy namely thinking of regulation correlativity requirement and detect the corresponding object existence that is positioned, whether can also determine to be positioned object in active state according to the variation range of received energy.The distributivity of coding can guarantee the to be positioned accuracy rate of object identification.
The system that realizes of method thus, can be in the set in the limited irregular space of be positioned object and the regulation of a regulation, effectively determine whether there is certain object that is positioned in certain (group) limited irregular space, detect this object that is positioned and whether be in static or the active procedure, also can find some movable features of this object that is positioned.
Description of drawings
Fig. 1 is used for explanation at position fixing process, and positioning requirements is coordinated object by the master control in the radio sensing network and initiated.At initial phase, master control is coordinated all the induction accepting objects in the network are configured, and delimits the sign of the discernible object that is positioned, and is used for correlation detection.Position fixing process is described by the object sequence diagram of above-mentioned standard.
Embodiment
The object of the invention is to propose a kind of method of determining the certain objects position in limited irregular functional space, the equipment, system or the scheme that realize by the method can satisfy a large amount of general location requirement.
Consideration is in a limited irregular functional space, the space base closed, typical scene as: family room and functional unit wherein, such as parlor, toilet, living room, bedroom, balcony etc., need to be to determining whether certain objects exists in so regular or very irregular space, be present in which space, and specific motion feature.This certain objects is called the object that is positioned herein.
In this limited irregular space, also to dispose at least a specific sense object, be called the induction accepting object herein.
The basic ideas of location are, the object that is positioned attach a ultrasonic transmitter, and it is according to specific rule, and a string provisioning information coding of encoding comprises the information that identifies the object that is positioned in the coding.The ultrasound wave that carries this regulation coding is launched in this limited irregular space, is transmitted and forms repeatedly reflection.Consider that the common buildings object has preferably occlusion effect for ultrasound wave, this ultrasound wave is effectively detected by the induction accepting object of considering deployed position and direction through after certain propagation and reflecting.The common spatial dimension of this effective detection does not need to guarantee 100% space in this space in the demand of reality.Such as being positioned to liking a elderly, its range of movement is the lower middle portion space in the room, directly propagates and Multi reflection as long as suitably use, and the ultrasound wave that the object that is positioned is launched can effectively be detected in this limited irregular space.
The most basic characteristics of the present invention are, the location requirement of considering is not with respect to the reference frame of setting up the position coordinates description as a reference point of certain physical points in the space, not with the basis of air line distance value as positional representation in other words, as long as but determine that whether the object that is positioned exists, and is actually the location expression with respect to this irregular space in the specific function space.Namely this anchored object position is that a kind of ambiguous location is described from strict rectilinear coordinates value, but such location expression determines that in the set of a functional space a kind of like this location expression of which functional space is accurate.Such position statement demand ubiquity in real life, and because each functional space is to allow Fuzzy Representation in the mutual location requirement of boundary, i.e. two adjacent space A and B are if its border is open, object on its border both can be determined at A, also can determine at B.
The present invention needs configuration induction accepting object and two unit of object that are positioned at least, the communication channel that needs to exist radio sensing network between these two unit, utilize simultaneously the large covering of the fan ultrasound wave of low-power to reflect, but the characteristics that are unsuitable for penetrating are as realizing the auxiliary media of location requirement herein.
Because ultrasound wave is behind the process Multi reflection, and other ultrasound wave of existence in the space, can disturb each other.In the method, the ultrasound wave of each object emission that is positioned carries specific coding, and the induction accepting object is verified this specific coding.This is coded in the process of transmission, reflection and is subject to the interference of neighbourhood noise and reflection process, this method adopts collaborative random pulse coding and the demodulation techniques between object and the induction accepting object that are positioned, and the induction accepting object carries out correlation detection to the ultrasound wave that receives.Satisfy namely thinking of regulation correlativity requirement and detect the corresponding object existence that is positioned, whether can also determine to be positioned object in active state according to the variation range of received energy.The distributivity of coding can guarantee the to be positioned accuracy rate of object identification.
The system that realizes of method thus, can be in the set in the limited irregular space of be positioned object and the regulation of a regulation, effectively determine whether there is certain object that is positioned in certain (group) limited irregular space, detect this object that is positioned and whether be in static or the active procedure, also can find some movable features of this object that is positioned.
The concrete following (see figure 1) of identifying:
1. in the functional space of relative closure, the induction accepting object has disposed the ultrasonic sensing receiving sensor, installs with the specification of system's regulation, and this functional space is identified by this induction accepting object; The object that is positioned has disposed ultrasonic transmitter;
But 2. be positioned object with the induction accepting object be respectively the communication node of radio sensing network, between have independently communication port ch154, can carry out exchanges data;
3. object is present in this functional space if be positioned, and is being positioned object after passage ch154 receives the detection and localization instruction, the in accordance with regulations random pulses of algorithm modulation, the ultrasound wave of emission band self coded message;
4. the ultrasound wave of launching is through directly propagating or the various reflections that stop object on every side, and sensed accepting object detects; The induction accepting object according to the rules random pulses demodulation of algorithm extracts the coded message that loads in the ultrasound wave;
5. the information coding of sensed accepting object to receiving, the sign that contrasts this object that is positioned is carried out correlation detection, if reach the relevance values of appointment, confirms that namely the object that is positioned corresponding to coding is present in the irregular functional space of this relative closure;
6. sensed accepting object notifies the object that is positioned existing functional space sign by passage ch154, and namely sensed accepting object and the object that is positioned are confirmed each other.
Claims (5)
1. support limited irregular sterically defined method for one kind, it is characterized in that:
1-1) in the functional space of a relative closure, the result of its location judges whether the object (destination object) that is positioned is present in this space, and this space identification is the positioning unit sign; With
1-2) this space is disposed one at least as the induction accepting object of this functional space sign, and the induction accepting object has disposed the ultrasonic sensing receiving sensor; The object that is positioned has disposed ultrasonic transmitter; With
1-3) there is independently communication port in be positioned object and induction between the accepting object, can carry out exchanges data; With
1-4) radio sensing network and ultrasound wave are the medium system of finishing two mutual cooperation of location requirement among the present invention.
2. described limited irregular sterically defined method according to claim 1-1 is characterized in that: the unit of location is described as the functional space sign, but not three-dimensional or the two-dimensional coordinate described with distance.
3. described limited irregular sterically defined method according to claim 1-2 is characterized in that: induction accepting object and ultrasonic sensing receiving sensor, be positioned object and ultrasonic transmitter bind together.
4. described limited irregular sterically defined method according to claim 1-3 is characterized in that: be positioned object and induction accepting object are the nodes in the wireless network, exist the communication port can directly address between them.
5. described limited irregular sterically defined method according to claim 1-4 is characterized in that:
5-1) master control is coordinated object and is sent the detection and localization instruction by wireless channel to the object that is positioned;
5-2) object that is positioned adopts the emission ultrasound wave to adopt the random site pulse code;
5-3) the induction accepting object carries out demodulation to the coding that 5-2 describes, and does correlation calculations, with the checking existence of object in this functional space that be positioned;
5-4) determine to detect and be positioned behind the object, send confirmation to the object that is positioned of correspondence;
5-5) be positioned after object is identified, record is own to be confirmed by specific induction accepting object, be positioned like this object and induction accepting object mutually confirm the to be positioned existence of object and the functional space sign at place.
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| CN2012105182115A CN102981164A (en) | 2012-12-06 | 2012-12-06 | Method supporting limited irregular space positioning |
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| CN2012105182115A CN102981164A (en) | 2012-12-06 | 2012-12-06 | Method supporting limited irregular space positioning |
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Citations (9)
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| US20120087212A1 (en) * | 2010-10-08 | 2012-04-12 | Harry Vartanian | Apparatus and method for providing indoor location or position determination of object devices using building information and/or powerlines |
| CN102457332A (en) * | 2010-11-02 | 2012-05-16 | 北京网潮科技有限公司 | Method, device and system for fixing position of mobile terminal |
| CN102721942A (en) * | 2012-06-29 | 2012-10-10 | 中国科学院声学研究所 | Acoustic positioning system and acoustic positioning method for object in building environment |
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2012
- 2012-12-06 CN CN2012105182115A patent/CN102981164A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6317386B1 (en) * | 1999-01-22 | 2001-11-13 | At&T Laboratories-Cambridge Limited | Method of increasing the capacity and addressing rate of an ultrasonic location system |
| JP2001337157A (en) * | 2000-05-26 | 2001-12-07 | Toyo System Kk | Local positioning system using ultrasonic wave |
| CN101589315A (en) * | 2006-11-09 | 2009-11-25 | 菲利普·豪曼 | Protection, security and displacement-tracking luminous badge system |
| CN101644777A (en) * | 2008-08-06 | 2010-02-10 | 艾洛思高有限公司 | Improved room separation in RTLS based on WLAN and method thereof |
| US20120087212A1 (en) * | 2010-10-08 | 2012-04-12 | Harry Vartanian | Apparatus and method for providing indoor location or position determination of object devices using building information and/or powerlines |
| CN102457332A (en) * | 2010-11-02 | 2012-05-16 | 北京网潮科技有限公司 | Method, device and system for fixing position of mobile terminal |
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