CN108966369A - A kind of home for destitute personnel positioning monitor system and its method - Google Patents
A kind of home for destitute personnel positioning monitor system and its method Download PDFInfo
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- CN108966369A CN108966369A CN201810838384.2A CN201810838384A CN108966369A CN 108966369 A CN108966369 A CN 108966369A CN 201810838384 A CN201810838384 A CN 201810838384A CN 108966369 A CN108966369 A CN 108966369A
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- destitute
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
The present invention relates to a kind of home for destitute personnel positioning monitor system and its method, be for solving existing congenic method and system is more demanding to signal strength indication, positioning more inaccurate technical problem and design.Its main points is that the method for the system is as follows: home for destitute personnel and/or goods and materials being first equipped with the equipment with Base communication function, as unknown node, and based on wireless network sensor and RSSI ranging technology, the estimated distance of wireless network node and unknown node is obtained；Then, optimized by the neighbor node to unknown node, using mean-squared departure method, select reliability high anchor node and unknown node is positioned, improve the positioning accuracy of unknown node.The wireless network sensor of the system includes panel cover, battery, circuit board, box body, panel cover is equipped with wireless transmission receiving antenna, display control panel and green indicating lamp, and circuit board is equipped with locating module, pressure inductor, power management module, RFID identification label.
Description
Technical field
It is a kind of home for destitute personnel positioning monitor system and its method the present invention relates to the localization method of wireless technology.
Background technique
The demand of indoor positioning technologies is higher and higher now, has become standard configuration in major place indoor positioning.Such as
The application number 201710744017.1 disclosed in Chinese patent literature, data of publication of application 2018.01.30, " interior is fixed for denomination of invention
Position system "；The system includes: that multiple positioning anchor points pass through encryption/non-encrypted broadcast frame periodicity sending self-ID information；It is fixed
Position label is set in target to be positioned, and positioning tag scan receives the id information of multiple positioning anchor points and corresponds to positioning anchor
The signal strength RSSI value of point, and wirelessly issue；It is concurrent that positioning gateway receives the information that positioning label wirelessly issues
Out；Location-server receives id information, signal strength RSSI value and the positioning mark for multiple positioning anchor points that positioning gateway issues
Self ID, and the location information of the corresponding positioning anchor point of id information inquiry of the positioning anchor point by receiving are signed, by receiving
Signal strength RSSI value calculate positioning label and it is each positioning anchor point between distance value, positioned later by location algorithm
The location information of label indoors.Although above-mentioned technology using wireless network sensor and RSSI ranging technology to unknown node into
Row positioning, but only require that the signal strength of node reaches standard i.e. and the node can be used in the technology, there is no to for measuring
Node optimize, to generate certain influence to measurement accuracy.Meanwhile home for destitute is indispensable as human society
Part should also be as the management of goods and materials and personnel to realize intelligent, human-based management by indoor positioning technologies, existing
Such technology is in home for destitute using less.
Summary of the invention
To overcome above-mentioned deficiency, the purpose of the present invention is to this field provide a kind of home for destitute personnel positioning monitor system and
Its method, solving it, existing similar product locating effect in home for destitute is poor, and intelligence degree is lower, and personnel, goods and materials are fixed
Position is more inconvenient, and the wireless network sensor structure applied to positioning designs not good enough technical problem.The purpose is to pass through
What following technical solution was realized.
A kind of home for destitute personnel positioning monitor system, the system include unknown node and anchor node, unknown node be with
The equipment of Base communication function, anchor node are wireless network sensor；It is characterized in that the equipment of the Base communication function fills
Assigned in home for destitute personnel and/or material equipment, be laid with several wireless network sensors in home for destitute, wireless network sensor with
And the equipment of the Base communication function on fixed material equipment is the high anchor node of reliability.
The wireless network sensor includes panel cover, battery, circuit board, box body, and panel cover is equipped with wireless transmission and receives
Battery and circuit board, circuit board are equipped in the shell that antenna, display control panel and green indicating lamp, panel cover and box body fasten
Equipped with locating module, pressure inductor, power management module, RFID identification label and RFID RF Reader, locating module is real
When monitoring wireless network sensor location information, pressure inductor can sense the external force punching that wireless network sensor is subject to
It hits, power management module can detect the electricity of wireless network sensor at any time, and RFID identification label is used for wireless network sensor
Identification, RFID RF Reader for RFID identification label equipment identification.
The box body bottom of the wireless network sensor is equipped with clamp, and the tail portion of clamp stretches out box body and is equipped with mounting hole.From
And the equipment or goods and materials in home for destitute are installed on by the mounting hole of clamp convenient for wireless network sensor, it is held on by clamp feeding
The equipment or goods and materials of old institute.
Case ring is equipped at the panel cover and box body fastening of the wireless network sensor, the side of case ring, which is equipped with, to be stretched out
Insertion plate end.Consequently facilitating wireless network sensor is inserted into the equipment or goods and materials gap in home for destitute.
The characteristics of according to the above-mentioned system, this method is specific as follows: being first equipped with home for destitute personnel and/or goods and materials has
The equipment of Base communication function obtains wireless network as unknown node, and based on wireless network sensor and RSSI ranging technology
The estimated distance of network node and unknown node；Then, optimized by the neighbor node to unknown node, utilize mean-squared departure side
Method selects the high anchor node of reliability and positions to unknown node, improves the positioning accuracy of unknown node.
Localization method of the invention is feasible, and positioning result is accurate, and positioning is convenient, fast, has a wide range of application；It is suitable as
The positioning monitoring and the improvement of similar localization method that home for destitute personnel and/or goods and materials are equipped with.
Detailed description of the invention
Fig. 1 is the detailed process block diagram of unknown node positioning of the present invention.
Fig. 2 is wireless network sensor embodiment configuration schematic diagram of the invention.
Figure number and title: 1, panel cover, 2, case ring, 3, battery, 4, circuit board, 5, box body, 6, clamp.
Specific embodiment
Now in conjunction with attached drawing, working principle of the present invention is further described.The system includes unknown node and anchor node, not
Know that node is the equipment with Base communication function, anchor node is wireless network sensor；The equipment of Base communication function is assembled
In being laid with several wireless network sensors in home for destitute personnel and/or material equipment, home for destitute.Wireless network as shown in Figure 2
The embodiment of sensor, wireless network sensor include panel cover 1, battery 3, circuit board 4, box body 5, and panel cover is equipped with wireless hair
Receiving antenna, display control panel and green indicating lamp are sent, is equipped with battery and circuit board in the shell that panel cover and box body fasten,
Circuit board is equipped with locating module, pressure inductor, power management module, RFID identification label and RFID RF Reader, positioning
Module monitors the location information of wireless network sensor in real time, and pressure inductor can sense that wireless network sensor is subject to outer
Power impact, power management module can detect the electricity of wireless network sensor at any time, and RFID identification label is passed for wireless network
The identification of sensor, RFID RF Reader is for the equipment identification with RFID identification label.The box body bottom of wireless network sensor
Portion is equipped with clamp 6, and the tail portion of clamp stretches out box body and is equipped with mounting hole；It is set at the panel cover of wireless network sensor and box body fastening
There is case ring 2, the side of case ring is equipped with the insertion plate end stretched out.Wireless network sensor is inserted by the insertion plate end of case ring
Enter in the equipment or goods and materials gap in home for destitute, wireless network sensor be installed on or be held on by clamp home for destitute equipment or
Goods and materials.By the goods and materials with RFID identification label of wireless network sensor or personnel, identified by RFID RF Reader, and
It is uploaded to server, the position letter that wireless network sensor passes through each wireless network sensor of RFID identification label record of itself
Breath and use state.
As shown in Figure 1, detailed process is as follows:
S100: the unknown node of home for destitute personnel and/or material equipment is set as n1, it is deployed in surrounding n neighbour in advance
The collection for occupying node is combined into B, according to actual needs, chooses nearest m neighbor node (n < m) based on RSSI ranging distance, as
Optimize node candidate；All possible subset S of (n-m) a node are chosen from set B1Set be denoted as S (n-m), from set B
The middle all possible subset S for choosing m node2Set be denoted as S (m), i.e.,
S200: assuming that possible son is concentrated with c anchor node (x1, Λ, xc, y1, Λ, yc), calculate the estimation square of unknown node
Battle array, i.e.,
Wherein, i is corresponding node footmark, distance of the unknown node to corresponding anchor node
Coefficient b=(10np/σdB)2, take S100: setting the unknown node of home for destitute personnel and/or material equipment as n1, it is deployed in it in advance
The collection of n neighbor node of surrounding is combined into B, according to actual needs, chooses m nearest neighbor node based on RSSI ranging distance
(n < m), as optimization node candidate；All possible subset S of (n-m) a node are chosen from set B1Set be denoted as S
(n-m), all possible subset S of m node are chosen from set B2Set be denoted as S (m), i.e.,
S200: assuming that possible son is concentrated with c anchor node (x1, Λ, xc, y1, Λ, yc), calculate the estimation square of unknown node
Battle array, i.e.,
Wherein, i is corresponding node footmark, distance of the unknown node to corresponding anchor node
Coefficient b=(10np/σdB)2, take σ dB/np=1.7；
S300: according to the estimated matrix of unknown node, calculating the mean-squared departure minimum value of all possible subsets in S (n-m),
I.e.
Wherein,For the estimated coordinates being calculated, (x0, y0) it is unknown node real coordinate position；
S400: choosing so that the node in the smallest possible subset of mean-squared departure is as majorized subset S (n), i.e.,
Wherein, bjFor with unknown node distance by closely to the node (b after remote arrangement1, Λ bj), | | n1-bj| | it is unknown section
Point n1To node bjDistance；
S400: assuming that containing k node (x in majorized subset S (n)1, Λ, xk, y1, Λ yk) (k < n), it is surveyed based on RSSI
Away from technology, unknown node is measured using majorized subset S (n) to obtain unknown node coordinate (x0, y0), it realizes to home for destitute
The positioning of personnel and/or material equipment, i.e.,
To realize the accurate positioning of home for destitute personnel and/or material equipment.
In conclusion node of the system and method selection optimization for measurement, to there is the interior of higher precision fixed
Position, the personnel of nest egg institute and handling of goods and materials provide help, realize intelligence, the human-based management in home for destitute.Relative to tradition
Wireless network node location technology, the node locating accuracy which is effectively turned up, while localization method
It is required that difficulty in computation it is low；Meanwhile manpower management is mostly used in terms of home for destitute personnel at this stage and/or handling of goods and materials, this is
System and its method will substantially reduce cost of the home for destitute in terms of human and material resources.
Claims (6)
1. a kind of home for destitute personnel positioning monitor system, which includes unknown node and anchor node, and unknown node is with base
The equipment of plinth communication function, anchor node are wireless network sensor；It is characterized in that the equipment of the Base communication function is assembled
In being laid with several wireless network sensors in home for destitute personnel and/or material equipment, home for destitute, wireless network sensor and
The equipment of Base communication function on fixed material equipment is the high anchor node of reliability.
2. home for destitute personnel positioning monitor system according to claim 1, it is characterised in that the wireless network sensor packet
Panel cover (1), battery (3), circuit board (4), box body (5) are included, panel cover is equipped with wireless transmission receiving antenna, display control panel
And green indicating lamp, panel cover is interior equipped with battery and circuit board with the shell that box body fastens, and circuit board is equipped with locating module, pressure
Inductor, power management module, RFID identification label and RFID RF Reader, locating module monitor wireless network sensing in real time
The location information of device, pressure inductor can sense the external impacts that wireless network sensor is subject to, and power management module can be with
When detect wireless network sensor electricity, RFID identification label be used for wireless network sensor identification, RFID radio frequency identification
Device is for the equipment identification with RFID identification label.
3. home for destitute personnel positioning monitor system according to claim 1, it is characterised in that the wireless network sensor
Box body (5) bottom is equipped with clamp (6), and the tail portion of clamp stretches out box body and is equipped with mounting hole.
4. home for destitute personnel positioning monitor system according to claim 1, it is characterised in that the wireless network sensor
Case ring (2) are equipped at panel cover (1) and box body (5) fastening, the side of case ring is equipped with the insertion plate end stretched out.
5. home for destitute personnel positioning monitoring method according to claim 1, it is characterised in that first by home for destitute personnel and/or object
Money is equipped with the equipment with Base communication function, as unknown node, and based on wireless network sensor and RSSI ranging skill
Art obtains the estimated distance of wireless network node and unknown node；Then, optimized by the neighbor node to unknown node, benefit
With mean-squared departure method, selects reliability high anchor node and unknown node is positioned, improve the positioning accurate of unknown node
Degree.
6. home for destitute personnel positioning monitoring method according to claim 5, it is characterised in that the detailed process of this method is as follows:
S100: the unknown node of home for destitute personnel and/or material equipment is set as n1, it is deployed in surrounding n neighbor node in advance
Collection be combined into B, according to actual needs, nearest m neighbor node (n < m) is chosen based on RSSI ranging distance, as optimization section
Point candidate；All possible subset S of (n-m) a node are chosen from set B1Set be denoted as S (n-m), chosen from set B
All possible subset S of m node2Set be denoted as S (m), i.e.,
S200: assuming that possible son is concentrated with c anchor node (x1, Λ, xc, y1, Λ, yc), the estimated matrix of unknown node is calculated, i.e.,
Wherein, i is corresponding node footmark, distance of the unknown node to corresponding anchor nodeSystem
Number b=(10np/σdB)2, take σ dB/np=1.7；
S300: according to the estimated matrix of unknown node, the mean-squared departure minimum value of all possible subsets in S (n-m) is calculated, i.e.,
Wherein,For the estimated coordinates being calculated, (x0, y0) it is unknown node real coordinate position；
S400: choosing so that the node in the smallest possible subset of mean-squared departure is as majorized subset S (n), i.e.,
Wherein, bjFor with unknown node distance by closely to the node (b after remote arrangement1, Λ bj), | | n1-bj| | it is unknown node n1
To node bjDistance；
S400: assuming that containing k node (x in majorized subset S (n)1, Λ, xk, y1, Λ yk) (k < n), it is based on RSSI ranging skill
Art measures unknown node using majorized subset S (n) to obtain unknown node coordinate (x0, y0), it realizes to home for destitute personnel
And/or the positioning of material equipment, i.e.,
To realize the accurate positioning of home for destitute personnel and/or material equipment.
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| CN201810838384.2A CN108966369B (en) | 2018-07-19 | 2018-07-19 | System and method for positioning and monitoring personnel in nursing home |
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| CN201810838384.2A CN108966369B (en) | 2018-07-19 | 2018-07-19 | System and method for positioning and monitoring personnel in nursing home |
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