CN202600136U - Multi-precision indoor positioning system - Google Patents
Multi-precision indoor positioning system Download PDFInfo
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- CN202600136U CN202600136U CN 201220178657 CN201220178657U CN202600136U CN 202600136 U CN202600136 U CN 202600136U CN 201220178657 CN201220178657 CN 201220178657 CN 201220178657 U CN201220178657 U CN 201220178657U CN 202600136 U CN202600136 U CN 202600136U
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Abstract
The utility model relates to a multi-precision indoor positioning system and a positioning method which are applied to the field of positioning and staff monitoring in buildings or indoors. The positioning system comprises multi-precision positioning receiving groups, a control center and a mobile terminal which are in a bi-directional wireless communication mutually. Compared with the prior art, a wired connection for all the existing ultrasonic receiving groups is changed into the wireless connection through construction of the multi-precision positioning receiving groups, the relatively low-precision ZigBee positioning technique is added, therefore not only the fussy problems of overlong wires laid during the arrangement of the ultrasonic receiving groups and the like are solved, but also the technical cost is reduced remarkably compared with mechanical integration of an ultrasonic positioning module with the ZigBee positioning module.
Description
Technical field
The utility model relates to a kind of positioning system and localization method, relates in particular to and a kind ofly is applied to building, indoor location positioning, personnel monitor the field.
Background technology
The product of the common in the market various location technologies of application respectively has its relative merits and restriction: on the one hand the higher relatively location technology cost of bearing accuracy is too high; Being not suitable for large tracts of land promotes the use of; Location technology with low cost, simple in structure does not on the other hand cause a lot of occasions to use because the bearing accuracy of itself is high again; Some location technologies are arranged because will consider localizing environment problem mounting positioning flexibly, these bring great inconvenience all for production and application.
Application has ZigBee location technology, ultra broadband location technology, RFID identification positioning technology and ultrasonic locating technology more widely in the existing indoor positioning technology.Wherein ZigBee location technology, ultra broadband location technology, RFID identification positioning technology all belong to radio frequency class location technology; Cause interference easily if mix to use, so adopt the hybrid location determination technology of ZigBee location technology and ultrasonic locating technology to realize the purpose of many precision location.
At present, these independent two technical products have a lot of defectives:
Like location employing in the disclosed technical scheme in the CN201096877Y patent documentation is the ZigBee wireless signal; Because the restriction of the unfavorable factor of signal own, bearing accuracy is not very high, on average about 3-5 rice; Though can realize the positioning function on basis; But the occasion in that the ask for something bearing accuracy is high is but also inapplicable, though ZigBee product cost in the radio frequency products field is not very high, compare cost with other communication modes still not low; Because it is the ZigBee module all is self power supply to be provided in the system own, very inconvenient when safeguarding.
What adopted the location in the disclosed technical scheme in the CN201594136U patent documentation for another example is ultrasonic signal; Because the ultrasound wave receiver module all is a wired connection in the system own; Cause in installation and maintenance very inconveniently, and can not arrange the reception network flexibly; More than two kinds of technology not only itself have a lot of defectives, and they can only provide a kind of or the bearing accuracy in more among a small circle, are not suitable for the complex environment that needs multiple bearing accuracy.
And for example simple in the disclosed technical scheme in the CN201417142Y patent documentation the combining of ZigBee technology and ultrasonic wave module machinery is used for locating if directly bring, not only increases considerably cost but also lost due dirigibility.
The utility model content
The technique effect of the utility model can overcome above-mentioned defective; A kind of many precision indoor locating system is provided, the complex space environment that it is simple in structure, convenient for installation and maintenance flexibly, cost is low, power saving, processing speed are fast, be applicable to different positioning accuracy requests.
For realizing above-mentioned purpose, the utility model adopts following technical scheme: it comprises that many precision location receives cohort, control center, portable terminal, and many precision location receives cohort, control center, portable terminal two-way wireless communication each other.
Portable terminal: comprise ZigBee wireless locating module, ultrasonic emitting module, one or more have a ultrasonic emitting module, and the ZigBee wireless locating module has to measure and receives signal intensity (RSSI) function, and can be by touch-switch control location.
Control center: be used for the compute location coordinate and show the location situation, comprise that ZigBee changes serial ports wireless module, upper computer module, ZigBee changes the serial ports wireless module and is used for communication, and upper computer module is used for calculating and showing.
Be used to accomplish a plurality of many precision location reception groups of location; Each reception group includes a ZigBee wireless control module, a power supply module and can comprise a plurality of ultrasound wave receiver modules; Be connected by fieldbus between ZigBee wireless control module and ultrasound wave receiver module, the ultrasound wave receiver module in the reception group, each module is by the unified power supply of power supply module in the reception group;
The ZigBee wireless control module comprises fieldbus data transport module I, microcontroller I, integrated ZigBee wireless module, and integrated ZigBee wireless module is connected with fieldbus through microcontroller I, fieldbus data transport module I successively.
Each many precision location reception group comprises a ultrasound wave receiver module at least; The ultrasound wave receiver module comprises fieldbus data transport module II, microcontroller II, pulses switch module, automatic gain module, ultrasonic transducer; Ultrasonic transducer is connected ultrasonic transducer and communication of mobile terminal through automatic gain module, pulses switch module, microcontroller II, fieldbus data transport module II successively with fieldbus.
Another purpose of the utility model provides a kind of localization method that adopts said system, comprises the steps:
(1) starts location (comprising active and the passive type dual mode);
(2) when portable terminal starts the location, portable terminal receives the group sending broadcast message by self-contained ZigBee wireless locating module to many precision location earlier, points out many precision location to receive cohort and begins to prepare low precision location;
(3) start many precision location reception groups of preparing the location and send the on-site two-dimensional coordinate value of present ZigBee wireless control module to portable terminal by self-contained ZigBee wireless control module; After transmission was accomplished, the ZigBee wireless control module got into sleep pattern again;
(4) portable terminal receives ZigBee wireless control module data sent in each many precision location reception groups, generates the corresponding signal strength values that receives simultaneously, afterwards these data is sent to control center, by control center's compute location, and shows;
(5) after control center calculates orientation range; Many precision location of storing according to self receives in component cloth situation and each the many precision location reception group group and carries ultrasound wave receiver module situation; Near orientation range many precision location reception groups are sent the hi-Fix warning order; When receiving, many precision location wakes the ultrasound wave receiver module under the sleep pattern when hi-Fix warning order is received in winding up; And, send high-precision fixed order of the bit to portable terminal again when waiting to receive the affirmation information that feeds back to control center's transmission confirmation, receive group sending timing order to many precision location;
(6) portable terminal receives the group sending ultrasound wave by self-contained ultrasonic emitting module to many precision location after receiving high-precision fixed order of the bit; Each ultrasound wave receiver module picked up counting in many precision location received and organizes when cohort receives the timing order;, the ultrasound wave receiver module stops meter when receiving ultrasound wave; Send the two-dimensional coordinate value and the clocking value at ultrasound wave receiver module place through fieldbus to the ZigBee wireless control module, divide wholesale again by the ZigBee wireless control module to control center;
(7) control center receives the group sending confirmation to many precision location after receiving data; Many precision location receives and gets into sleep pattern again after cohort receives confirmation, and control center positions according to the data that have algorithm and receive and calculates and show.
The utility model and prior art relatively have following advantage:
1, converts original ultrasound wave reception group that all connects into the wireless connections mode through building many precision location reception cohort, and increased the ZigBee location technology of low relatively precision through wired mode; Not only solved loaded down with trivial details problems such as original ultrasound wave reception group electric wire arrangement in installation is long, and significantly reduced than the simple technical costs that combines with ultrasonic locating module and ZigBee locating module machinery.
2, many precision location reception groups make in maintenance process, easier to concentrate and change power unit because power supply module independent in group electricity consumption module for power supply in complete group is arranged, and reduce maintenance cost.
3, because the quantity of the interior ultrasound wave receiver module of many precision location reception group is arbitrarily, so can adjust flexibly according to the complicated installation environment at scene.Be applicable to various complex environments.
4, varying environment requires locating accuracy and is inconsistent; Regional high density in that positioning accuracy request is higher is put the ultrasound wave receiver module; In the not high zone of positioning accuracy request; Can to reduce the density of this regional ultrasound wave receiver module in order reducing expenses, even can not arrange the ultrasound wave receiver module, use the ZigBee location technology of low relatively precision to realize the location.Thereby realized the purpose of many precision location.
5, since the ZigBee technology in transmission course, itself have anti-collision mechanism, solved possibly cause in original ultrasonic locating technology the data collision problem and in large area region the slow problem of locating speed.
6, a plurality of parts of the utility model system are in sleep pattern for a long time; Have only and when the location, just begin operate as normal; And in conjunction with the method for back, earlier low precision location hi-Fix, many precision location reception groups that effective minimizing need wake up are for total system has been saved a large amount of electric power.
7, all locator datas are carried out compute location after receiving by control center, have fully combined the thought of cloud computing.
Description of drawings
Fig. 1 is the integral module synoptic diagram of the utility model;
Fig. 2 is that many precision location of the utility model receives the pack module synoptic diagram;
Fig. 3 is the flowage structure synoptic diagram of the utility model localization method.
Embodiment
Many precision positioning system of the utility model comprises that many precision location receives cohort, control center, portable terminal, and many precision location receives cohort, control center, portable terminal two-way wireless communication each other.
Many precision location receives cohort and comprises a plurality of many precision location reception groups.Many precision location reception groups comprise ZigBee wireless control module, ultrasound wave receiver module, power supply module; ZigBee wireless control module, ultrasound wave receiver module are connected with power supply module respectively, connect through fieldbus between ZigBee wireless control module, the ultrasound wave receiver module.The ZigBee wireless control module comprises fieldbus data transport module I, microcontroller I, integrated ZigBee wireless module, and integrated ZigBee wireless module is connected with fieldbus through microcontroller I, fieldbus data transport module I successively.Each many precision location reception group comprises three ultrasound wave receiver modules; The ultrasound wave receiver module comprises fieldbus data transport module II, microcontroller II, pulses switch module, automatic gain module, ultrasonic transducer; Ultrasonic transducer is connected ultrasonic transducer and communication of mobile terminal through automatic gain module, pulses switch module, microcontroller II, fieldbus data transport module II successively with fieldbus.Portable terminal comprises ZigBee wireless locating module, ultrasonic emitting module.Control center comprises that ZigBee changes serial ports wireless module, upper computer module.
Native system utilizes a plurality of many precision location reception groups, and ZigBee wireless location technology and ultrasonic locating technology are combined, and is gone out the position of portable terminal by control center's dynamic calculation; Portable terminal, control center, many precision location reception group are to carry out communication through wireless mode, and ultrasound wave receiver module and ZigBee wireless control module in many precision location reception group groups are to carry out communication by wired mode.
Adopt passive positioning and two kinds of type of drive of positive location between portable terminal and the control center; Wherein, positive location is that portable terminal requirement control center positions it; Passive positioning is that control center initiatively positions portable terminal.
The big functional unit of in many precision indoor locating system three: many precision location receives cohort, portable terminal and control center; Many precision location receives the unit that cohort promptly is made up of a plurality of many precision location reception groups; The communication of three big functional units is by the ZigBee wireless telecommunications; And be two-way communication between each module; Only receiving to add on cohort and the portable terminal in many precision location has ultrasonic wave module and is one-way transmission; Many precision location receives the ultrasonic signal that the cohort mobile terminal receive sends, and is used for ultrasonic locating.
Fig. 3 is the positioning flow figure of a kind of many precision indoor locating system of the utility model and method, and step is following:
Step 1: begin the location, be divided into two kinds and start locator meams.
First kind is passive startup station-keeping mode; Be to specifying portable terminal to send the positioning starting order by control center; The numbering that comprises startup command identifier and corresponding portable terminal in the order; Order wakes each portable terminal under the sleep pattern up after sending, and portable terminal receives order and confirms as numbering that the numbering of startup command and calling write down with itself and begins passive startup when consistent and locate, and returns the affirmation information that receives order to control center simultaneously.
Second kind is initiatively to start station-keeping mode; Be that mobile object to be positioned is initiatively pressed the switch on the entrained portable terminal; Portable terminal sent to control center and started location and self number information this moment; Control center receives the back and returns confirmation to portable terminal, and beginning initiatively starts the location.
Step 2: when portable terminal starts the location; Portable terminal receives the group sending broadcast message by self-contained ZigBee wireless locating module to many precision location earlier; Point out many precision location to receive cohort and begin to prepare low precision location; The many precision location reception groups that only receive broadcast message are just waken up and are begun to prepare low precision position fixing process, the less so greatly power consumption situation of total system.
Step 3: start many precision location reception groups of preparing the location and send the on-site two-dimensional coordinate value of present ZigBee wireless control module to portable terminal by self-contained ZigBee wireless control module; Because there is anti-collision mechanism the ZigBee technology in this when the transmission data; So as a plurality of ZigBee wireless control modules when portable terminal sends data; Can intelligence prevent data collision, prevent to receive situation such as error in data, systemic breakdown.The ZigBee wireless control module got into sleep pattern again after transmission was accomplished.
Step 4: portable terminal receives ZigBee wireless control module data sent in each many precision location reception groups; Generate the corresponding signal strength values (RSSI) that receives simultaneously; Afterwards these data are sent to control center; Combine existing algorithm to carry out compute location by control center, and show.
Step 5: after control center calculates orientation range; Many precision location of storing according to itself receives in component cloth situation and each the many precision location reception group group and carries ultrasound wave receiver module situation; Near orientation range many precision location reception groups are sent the hi-Fix warning order; When receiving, many precision location wakes the ultrasound wave receiver module under the sleep pattern when hi-Fix warning order is received in winding up; And, send high-precision fixed order of the bit to portable terminal again when waiting to receive the affirmation information that feeds back to control center's transmission confirmation, receive group sending timing order to many precision location.
Step 6: portable terminal receives the group sending ultrasound wave by self-contained ultrasonic emitting module to many precision location after receiving high-precision fixed order of the bit; Each ultrasound wave receiver module picked up counting in many precision location received and organizes when cohort receives the timing order;, the ultrasound wave receiver module stops timing when receiving ultrasound wave; Send the two-dimensional coordinate value and the clocking value at ultrasound wave receiver module place through fieldbus to the ZigBee control module, divide wholesale again by the ZigBee control module to control center.
Step 7: control center receives the group sending confirmation to many precision location after receiving data; Many precision location receives and gets into sleep pattern again after cohort receives confirmation, and control center positions according to the data that have algorithm and receive and calculates and show.
The above; Be merely the embodiment in the utility model; But the protection domain of the utility model is not limited thereto; Anyly be familiar with this technological people in the technical scope that the utility model disclosed, can understand conversion or the replacement expected, all should be encompassed in comprising within the scope of the utility model.
Claims (7)
1. precision indoor locating system more than a kind is characterized in that, comprises that many precision location receives cohort, control center, portable terminal, and many precision location receives cohort, control center, portable terminal two-way wireless communication each other.
2. many precision indoor locating system according to claim 1 is characterized in that, many precision location receives cohort and comprises at least one many precision location reception group.
3. many precision indoor locating system according to claim 2; It is characterized in that; Many precision location reception groups comprise ZigBee wireless control module, ultrasound wave receiver module, power supply module; ZigBee wireless control module, ultrasound wave receiver module are connected with power supply module respectively, connect through fieldbus between ZigBee wireless control module, the ultrasound wave receiver module.
4. many precision indoor locating system according to claim 3; It is characterized in that; The ZigBee wireless control module comprises fieldbus data transport module I, microcontroller I, integrated ZigBee wireless module, and integrated ZigBee wireless module is connected with fieldbus through microcontroller I, fieldbus data transport module I successively.
5. many precision indoor locating system according to claim 3; It is characterized in that; Each many precision location reception group comprises a ultrasound wave receiver module at least; The ultrasound wave receiver module comprises fieldbus data transport module II, microcontroller II, pulses switch module, automatic gain module, ultrasonic transducer; Ultrasonic transducer is connected ultrasonic transducer and communication of mobile terminal through automatic gain module, pulses switch module, microcontroller II, fieldbus data transport module II successively with fieldbus.
6. many precision indoor locating system according to claim 1 is characterized in that, portable terminal comprises ZigBee wireless locating module, ultrasonic emitting module.
7. many precision indoor locating system according to claim 1 is characterized in that, control center comprises that ZigBee changes serial ports wireless module, upper computer module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220178657 CN202600136U (en) | 2012-04-24 | 2012-04-24 | Multi-precision indoor positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220178657 CN202600136U (en) | 2012-04-24 | 2012-04-24 | Multi-precision indoor positioning system |
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| CN202600136U true CN202600136U (en) | 2012-12-12 |
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| CN 201220178657 Expired - Fee Related CN202600136U (en) | 2012-04-24 | 2012-04-24 | Multi-precision indoor positioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376441A (en) * | 2012-04-24 | 2013-10-30 | 中国海洋大学 | Multi-precision indoor positioning system and positioning method by adoption of same |
| WO2015027807A1 (en) * | 2013-08-27 | 2015-03-05 | 华为技术有限公司 | Indoor positioning terminal, network, system and method thereof |
| US10849205B2 (en) | 2015-10-14 | 2020-11-24 | Current Lighting Solutions, Llc | Luminaire having a beacon and a directional antenna |
-
2012
- 2012-04-24 CN CN 201220178657 patent/CN202600136U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376441A (en) * | 2012-04-24 | 2013-10-30 | 中国海洋大学 | Multi-precision indoor positioning system and positioning method by adoption of same |
| CN103376441B (en) * | 2012-04-24 | 2015-10-28 | 中国海洋大学 | Many precision indoor locating system and adopt the localization method of this system |
| WO2015027807A1 (en) * | 2013-08-27 | 2015-03-05 | 华为技术有限公司 | Indoor positioning terminal, network, system and method thereof |
| US10849205B2 (en) | 2015-10-14 | 2020-11-24 | Current Lighting Solutions, Llc | Luminaire having a beacon and a directional antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150424 |
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| EXPY | Termination of patent right or utility model |