CN106255049A - Indoor positioning based on Zigbee monitoring system and monitoring method thereof - Google Patents

Indoor positioning based on Zigbee monitoring system and monitoring method thereof Download PDF

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Publication number
CN106255049A
CN106255049A CN201610846672.3A CN201610846672A CN106255049A CN 106255049 A CN106255049 A CN 106255049A CN 201610846672 A CN201610846672 A CN 201610846672A CN 106255049 A CN106255049 A CN 106255049A
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CN
China
Prior art keywords
electric capacity
chip
positioning
positioning cards
nodes
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CN201610846672.3A
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Chinese (zh)
Inventor
单志林
李臻
金东勇
王鹍
干露
王永攀
胡佳
Original Assignee
华东电子工程研究所(中国电子科技集团公司第三十八研究所)
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Priority to CN201610846672.3A priority Critical patent/CN106255049A/en
Publication of CN106255049A publication Critical patent/CN106255049A/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29Geographical information databases
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/06Testing, supervising or monitoring using simulated traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/025Services making use of location information using location based information parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/20Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses indoor positioning based on Zigbee monitoring system and monitoring method thereof.Indoor positioning monitoring system includes database hub, multiple nodes of locations, multiple positioning cards, multiple route and data transmission node.Database hub is by the information record of each nodes of locations and stores, and is shown by visualized map mode.Positioning cards that each nodes of locations timing search is unknown also sets up connection, keeps the communication path with database hub by these routes and data transmission node simultaneously.All positioning cards pass through broadcast mode, are sent in presence information, and set up and these nodes of locations and these route and the communication path of data transmission node.It is an advantage of the current invention that: 1, use Zigbee wireless communication technology to monitor nodes of locations reported data in real time;2, quickly determine that positioning cards is relatively and absolute position.

Description

Indoor positioning based on Zigbee monitoring system and monitoring method thereof
Technical field
The present invention relates to a kind of radio communication alignment system, particularly relating to the monitoring of a kind of indoor positioning based on Zigbee is System.
Background technology
ZigBee technology be a kind of closely, low complex degree, low-power consumption, the two-way wireless communication technology of low cost.Pass through 2.4G MANET agreement, can realize the group-net communication of up to 65536 nodes in LAN, it is achieved internet of things sensors channel radio Letter, is widely used in industrial circle.In urban road and region, GPS alignment system large area covers, and therefore, needs to be ground Send a kind of indoor positioning based on Zigbee monitoring system, applicable colliery or tunnel, determine the position of staff and send out Staff is quickly found during raw danger;The container following the tracks of quay shed starts shipment situation;For the hazardous area such as power plant, transformer station Territory, determines location of personnel;For indoor such as nursing house, urgent calls when determining the position of the personnel of being admitted to hospital and cause danger Need the occasion of location.
Summary of the invention
Present invention aim at providing a kind of indoor positioning based on Zigbee to monitor system, its positioning cards can realize be Being accurately positioned of system.
To achieve the above object, the present invention realizes by the following technical solutions: a kind of indoor based on Zigbee are fixed Level monitoring system, it includes database hub, multiple nodes of locations, multiple positioning cards, multiple route and data transmission node; Database hub is by the information record of each nodes of locations and stores, and is shown by visualized map mode;Each position is saved Positioning cards that point timing search is unknown also sets up connection, is kept and data base by these routes and data transmission node simultaneously The communication path at center;All positioning cards pass through broadcast mode, are sent in presence information, and set up and these nodes of locations And these route and communication paths of data transmission node.
As the further improvement of such scheme, the networking signal of each nodes of locations Scan orientation card, and enter therewith Row connects;After positioning cards sets up the communication connection with nodes of locations, the valid data reported are saved in internal RAM, inspection Survey the RSSI signal intensity of communication, after valid data are packed, wait and route and the communication of data transmission node, by number of packing According to reporting route and data transmission node.
Further, positioning cards uses a kind of Distributed localization computational methods to set up the communication with these nodes of locations.
As the further improvement of such scheme, each positioning cards include control module and respectively with control module electricity Property connect and be controlled by control module battery/power source management module, electric quantity acquisition circuit, temperature collection circuit, state instruction Module, radio circuit, telecommunication circuit;By electric quantity acquisition circuit, the information about power of the corresponding positioning cards of Real-time Collection;By temperature Degree Acquisition Circuit, the temperature parameter of the corresponding positioning cards of Real-time Collection;By state indicator module, by duty with display lamp Mode show;By radio circuit, carry out receiving and dispatching and detecting signal intensity by radio frequency signal;By RS485 communication electricity Road, is configured corresponding positioning cards.
Further, by a battery access interface by battery for being electrically accessed battery/power source management module, battery is just End series winding diode D6, out-put supply VDD are as the supply voltage of battery/power source management module;Battery/power source management module will Power vd D is converted to power supply VCC, and by both power supplys for the modules of corresponding positioning cards.
Yet further, battery/power source management module includes power supply chip, resistance R3, electric capacity C11, electric capacity C14, two poles Pipe D6;The power input IN of described power supply chip connects power vd D, power vd D mono-aspect via electric capacity C11 ground connection, another Aspect connects Enable Pin EN of described power supply chip via resistance R3;The power output end OUT out-put supply of described power supply chip VCC, the earth terminal GND ground connection of described power supply chip and and power supply VCC between serial capacitance C14.
Yet further, control module includes CC2530 chip, reset circuit, two crystal oscillating circuits, decoupling and filtered electrical Road, RF transmit-receive circuit;CC2530 chip is provided and resets by reset circuit, and two crystal oscillating circuits are to CC2530 chip offer work The crystal oscillator needed, decoupling and filter circuit realize decoupling and filter function to CC2530 chip, and RF transmit-receive circuit is to CC2530 Chip realizes radio transmission-receiving function.
Preferably, decoupling and filter circuit include inductance L1, electric capacity C1~C8;Electric capacity C1 is connected in parallel on drawing of CC2530 chip On foot AVDD_DREG, electric capacity C2 is connected in parallel on the pin DVDD of CC2530 chip, and electric capacity C3 is connected in parallel on the pin of CC2530 chip On AVDD5/AVDD_SOC, electric capacity C4 is connected in parallel on the pin AVDD3 of CC2530 chip, and electric capacity C5, electric capacity C6 are all connected in parallel on On pin AVDD2, AVDD1, AVDD4 of CC2530 chip, electric capacity C7 is connected in parallel on the pin AVDD_GUARD of CC2530 chip, Electric capacity C8 and electric capacity C1~C7 is in parallel and is connected power vd D via inductance L1.
Preferably, RF transmit-receive circuit includes electric capacity C9~C10, C12, C15~C17 and inductance L2~L4;Electric capacity C9's One end connects the pin RF_P of CC2530 chip, and the other end of electric capacity C9 is via electric capacity C10, electric capacity C17 ground connection;Electric capacity C12's One end connects the pin RF_N of CC2530 chip, and the other end of electric capacity C12 is via electric capacity C15 ground connection;One end ground connection of inductance L2, The other end of inductance L2 is connected between electric capacity C9 and electric capacity C10 and is also connected with one end of inductance L3, and the other end of inductance L3 is even Being connected between electric capacity C12 and electric capacity C15 and be also connected with one end of inductance L4, the other end of inductance L4 is connected to electric capacity C10 and electricity Hold between C17 and also meet exterior antenna E1 via electric capacity C13;The one of electric capacity C16 terminates another of exterior antenna E1, electric capacity C16 End ground connection.
The present invention also provides for the indoor positioning monitoring method of above-mentioned arbitrarily indoor positioning based on Zigbee monitoring system, its Comprise the following steps:
According to have database hub server provide figure selecting and set up an indoor locating system display figure; Select several mount points with installation site node, multiple positioning cards, multiple route and data transmission node in display figure And all initialize, rear employing hand-held set debugs each node, it is ensured that node communication and data are normal;Select according to field condition Take appropriate location and switch and netting twine are installed, whole hardware device is built complete;
The networking signal of nodes of locations Scan orientation card, and be attached therewith, set up and communicate to connect with nodes of locations After, the valid data parameter reported is saved in the internal RAM of positioning cards, the RSSI signal intensity of detection communication, will have After effect signal packing, wait and route and the communication of data transmission node, packing data is reported route and data transmission node;
Positioning cards is set up and is communicated with several nodes of locations, uses a kind of Distributed localization computational methods;Nodes of locations According to the information received from closest positioning cards, positioning cards is carried out local computing, determine located in connection card Position, and obtain the node device ID parameter of nearest positioning cards, after packing with the related information parameters of self, wait with Route and the communication of data transmission node;
Route and data transmission node are in non-stop run state, monitor the signal of communication of all nodes, when detecting After the signal of communication of nodes of locations and positioning cards, actively set up and be connected with the radio communication of each node, by each node Effective data packets is forwarded to server by netting twine and switch;
Route and the packet that reports of data transmission node are resolved by server, show each nodes of locations in wire State, and according to alignment system initialization data, computational analysis goes out the geographical position of positioning cards;Packet according to positioning cards Obtain its relative position;According to the data of multiple spot nodes of locations, accurately calculate the absolute position of positioning cards.
It is an advantage of the current invention that:
1, relative position and the absolute position of positioning cards are determined in real time.
2, the temperature of real-time detection and location card and electrical parameter.
3, position location is determined according to or multipoint positioning model at 3.
4, there is server data library management and map display function.
5, possesses low-consumption wireless networking function
6, there is RS485 communications setting interface.
Accompanying drawing explanation
Fig. 1 is the positioning principle block diagram of present invention indoor positioning based on Zigbee monitoring system.
Fig. 2 is the circuit block diagram of positioning cards in Fig. 1.
Fig. 3 is the circuit diagram of battery/power source management module in Fig. 2.
Fig. 4 is the circuit diagram of control module in Fig. 2.
Fig. 5 is the circuit diagram of temperature collection circuit in Fig. 2.
Fig. 6 is the circuit diagram of RS485 telecommunication circuit in Fig. 2.
Fig. 7 is the circuit diagram of electric quantity acquisition circuit in Fig. 2.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and It is not used in the restriction present invention.
Indoor positioning based on Zigbee monitoring system shown in installation diagram 1, in the space needing location, every 50~ Arranging a nodes of locations 2 for 100 meters, this nodes of locations 2 provides location parameter as whole alignment system;By each nodes of locations 2 initialize installation in alignment system;The persons or things needing location is worn a positioning cards 3;Positioning cards 3 and position The data of node 2 carry out data transmit-receive by route/back end 4.Route or back end 4 by netting twine and switch 5 with Background server 1 sets up communication, thus sets up a set of wireless location system.
Wherein multipoint positioning method is as described below: X is required positioning cards position, it is known that 3 positions of A, B, C, and X point and A, the distance that B, C are 3.Taking any point in A or B or C is the centre of sphere, with A, the distance conduct of the RSSI signal conversion of B, C Radius makees spherical chart, obtains three spherical point of intersection and is the particular location of X.The most accurate position, can choose E, F etc. Point, repeats mapping.
The work process of the present invention is as follows:
Installing positioning system application also to run, the figure selecting that provides according to the server with database hub 1 is also built Vertical indoor locating system display figure.Several mount points are selected, point of addition reference mode to installation in display figure Point initialize, including nodes of locations and back end, i.e. installation site node 2, multiple positioning cards 3, multiple route and Data transmission node 4, rear employing hand-held set debugs each node, it is ensured that node communication and data are normal.Choose appropriate location peace Dress switch 5 and netting twine, build complete by whole hardware device.
The networking signal of nodes of locations 2 Scan orientation card 3, and be attached therewith, set up and nodes of locations 2 communication link After connecing, the parameters such as the valid data reported such as electricity, device number, temperature are saved in internal RAM, the RSSI letter of detection communication Number intensity, after being packed by useful signal, waits and i.e. routeing and the communication of data transmission node 4, by packing data with routing node Report routing node;Positioning cards 3 is set up and is communicated with several nodes of locations 2, uses a kind of Distributed localization computational methods, root According to the information received from closest reference mode (its position is known), node is carried out local computing, determines phase The position of articulare, and obtain nearest reference mode device id parameter, with self relevant information such as electricity, device number, temperature After the parameter packings such as degree, wait the communication with routing node.
Routing node is in non-stop run state, monitors the signal of communication of all nodes.When detect nodes of locations and After the signal of communication of positioning cards node, actively set up and be connected with the radio communication of each node, by the significant figure of each node It is forwarded to server by netting twine and switch according to bag.
The packet that routing node is reported by server resolves, and shows the presence of each node, and according to location system System initialization data, computational analysis goes out the geographical position of positioning cards.Its phase para-position can be obtained according to the packet of positioning cards Put;According to the data of multiple spot nodes of locations, accurately calculate the absolute position of positioning cards.
In the present embodiment, after nodes of locations and positioning cards node set up wireless connections, the RSSI of detection chip communication Signal intensity, and by after information about power, temperature information and the id information of binding, RSSI information package, report service by route Device;Server real-time reception reported data also resolves, and calculates positioning cards position by location algorithm and shows in map, and Display nodes of locations and the presence of positioning cards in real time.
Described nodes of locations, positioning cards node comprise power management, battery electric quantity collection and process, temperature acquisition and Process, state instruction, RF transmit-receive circuit, RS485 communication and setting, single-chip microcomputer work and process, above each unit is system The key component of Site Detection transmission.
Described positioning cards is relative to position, and it determines that method is in report cycle, and positioning cards is set up and saved with position After some communication, use the Distributed localization computational methods that TI chip carries.This computational methods are according to from closest reference The information that node (its position is known) receives, carries out local computing to node, determines the position of interdependent node.And will have After effect information package, it is sent to route, reports server through route.According to the information of nodes of locations in data base in server, Relative position or the Position Approximate of this positioning cards can be obtained.Described relative position, be based on TI chip carry distributed The nearest position card position that method for calculating and locating obtains, according to distance, the Position Approximate scope drawn;Described location Card absolute position, its determine method be nodes of locations timing by route uploaded state information, this status information comprises with Nodes of locations sets up the positioning cards information connected, it is known that the positional information of nodes of locations and calculated equivalent by RSSI communication strength Range information, the positional information of locator card can be accurately calculated, thus obtain the absolute position of positioning cards.
In the present invention, using TI Zigbee RF equipment, its embedded engine of positioning uses the RF basis of Zigbee network Facility calculates things or personage's location.Engine of positioning integrates with MCU in single-chip RF transceiver, uses A kind of Distributed localization computational methods.This computational methods are according to from closest reference mode (its position is known) The information received, carries out local computing to node, determines the position of interdependent node.Therefore, many major generals of network traffics are by treating The quantity surveying range of nodes interior joint determines.Further, since network traffics can be proportional along with the increase of number of nodes to be measured It is incremented by, therefore system is total, also allows for there is substantial amounts of node to be measured in consolidated network.
The Zigbee alignment system provided in the present invention, applicable colliery or tunnel, determine the position of staff and send out Staff is quickly found during raw danger;The container following the tracks of quay shed starts shipment situation;For the hazardous area such as power plant, transformer station Territory, determines location of personnel;For indoor such as nursing house, urgent calls when determining the position of the personnel of being admitted to hospital and cause danger Need the occasion of location.
Fig. 2 is the module frame chart of the positioning cards 3 of the present invention.Each positioning cards include control module 30 and respectively with Control module 30 is electrically connected with and is controlled by battery/power source management module 31, electric quantity acquisition circuit 32, the temperature of control module 30 Acquisition Circuit 33, state indicator module 34, radio circuit 35, telecommunication circuit 36 (can be RS485 telecommunication circuit), Function Extension mould Block 37.By electric quantity acquisition circuit 32, the information about power of the corresponding positioning cards of Real-time Collection;By temperature collection circuit 33, real Time gather the temperature parameter of corresponding positioning cards;By state indicator module 34, by duty with display lamp (such as LED) Mode is shown;By radio circuit 35, carry out receiving and dispatching and detecting signal intensity by radio frequency signal;By RS485 communication electricity Corresponding positioning cards is configured by road;By function expanding module 37, corresponding positioning cards is realized Function Extension.
In other words, single-chip microcomputer IC1, as microcontroller, is responsible for work and the operation of whole node.Pass through electric quantity acquisition Circuit, the information about power of this node of Real-time Collection;By temperature collecting cell, the temperature parameter of this node of Real-time Collection;Pass through Indicator light circuit, shows duty in the way of LED, it is simple to operator and commissioning staff;By 2.4G radio frequency electrical Road, carries out receiving and dispatching and detecting signal intensity by 2.4G radio frequency signal;By RS485 circuit, node is configured.
Refer to Fig. 3, by a battery access interface by battery for being electrically accessed battery/power source management module 31, battery Anode series winding diode D6, out-put supply VDD as battery/power source management module 31 supply voltage;Battery/power source manages Power vd D is converted to power supply VCC by module 31, and by both power supplys for the modules of corresponding positioning cards 3.
Battery/power source management module 31 includes power supply chip, resistance R3, electric capacity C11, electric capacity C14, diode D6;Described Power input IN connection power vd D, power vd D mono-aspect of power supply chip is via electric capacity C11 ground connection, on the other hand via electricity Resistance R3 connects Enable Pin EN of described power supply chip;The power output end OUT out-put supply VCC of described power supply chip, described electricity The earth terminal GND ground connection of source chip and and power supply VCC between serial capacitance C14.
In the present embodiment, by battery access interface by battery for being electrically accessed circuit board, battery positive series winding diode D6, output VDD_3.3V, as circuit board supply voltage, use power supply chip LP5907 that VDD_3.3V is converted to VCC_1.8, And other unit modules in these two kinds of power supplys single-chip microcomputer IC1 altogether and circuit are used.Wherein LP5907 pin 1 connects C11 filtered electrical Holding, LP5907 pin 2 connects R3 pull-up, enables power supply chip LP5907, and LP5907 pin 4 connects C14 decoupling capacitor and exports VCC_ 1.8。
Referring to Fig. 4, control module 30 includes CC2530 chip, reset circuit, two crystal oscillating circuits, decoupling and filtered electrical Road, RF transmit-receive circuit;CC2530 chip is provided and resets by reset circuit, and two crystal oscillating circuits are to CC2530 chip offer work The crystal oscillator needed, decoupling and filter circuit realize decoupling and filter function to CC2530 chip, and RF transmit-receive circuit is to CC2530 Chip realizes radio transmission-receiving function.
Decoupling and filter circuit include inductance L1, electric capacity C1~C8;Electric capacity C1 is connected in parallel on the pin AVDD_ of CC2530 chip On DREG, electric capacity C2 is connected in parallel on the pin DVDD of CC2530 chip, and electric capacity C3 is connected in parallel on the pin AVDD5/ of CC2530 chip On AVDD_SOC, electric capacity C4 is connected in parallel on the pin AVDD3 of CC2530 chip, and electric capacity C5, electric capacity C6 are all connected in parallel on CC2530 core On pin AVDD2, AVDD1, AVDD4 of sheet, electric capacity C7 is connected in parallel on the pin AVDD_GUARD of CC2530 chip, electric capacity C8 with Electric capacity C1~C7 is in parallel and connects power vd D via inductance L1.
RF transmit-receive circuit includes electric capacity C9~C10, C12, C15~C17 and inductance L2~L4;One end of electric capacity C9 connects The pin RF_P of CC2530 chip, the other end of electric capacity C9 is via electric capacity C10, electric capacity C17 ground connection;One end of electric capacity C12 connects The pin RF_N of CC2530 chip, the other end of electric capacity C12 is via electric capacity C15 ground connection;One end ground connection of inductance L2, inductance L2's The other end is connected between electric capacity C9 and electric capacity C10 and is also connected with one end of inductance L3, and the other end of inductance L3 is connected to electric capacity Between C12 and electric capacity C15 and be also connected with one end of inductance L4, the other end of inductance L4 is connected between electric capacity C10 and electric capacity C17 And also meet exterior antenna E1 via electric capacity C13;The other end ground connection of one termination the exterior antenna E1, electric capacity C16 of electric capacity C16.
In the present embodiment, control module 30 includes the CC2530 chip of TI, reset circuit R4 and C19, crystal oscillating circuit C21, C22, Y2, crystal oscillating circuit C23, C24, Y1, decoupling and filter circuit L1, C1, C2, C3, C4, C5, C6, C7, C8, power supply electricity Source VDD_3.3V and VCC_1.8 and power supply ground.RF transmit-receive circuit, the radio frequency matched with IC1 internal radio frequency module for design Network, is collectively constituted this radio frequency network by electric capacity C9, C10, C12, C15, C16, C17 and inductance L2, L3, L4, and by C9 with C12 accesses IC1 pin 26 and pin 25, picks out outside 50 ohm antenna E1 by C13.State indication unit, by IC1 pin 9 connect LED2 and R1, R1 accesses power vd D_3.3V;Connected LED1 and R2, R2 by IC1 pin 11 and access power vd D_3.3V. Node duty is indicated by the low and high level of Single-chip Controlling LED1 and LED2.
Minimum system by the I/O interface of single-chip microcomputer and peripheral hardware respectively with electric quantity acquisition circuit, temperature collection circuit, instruction Circuit for lamp, radio circuit and RS485 circuit are connected.
Referring to Fig. 5, temperature collection circuit 33, by single-chip microcomputer IC1 digital pin P0_7 by the i.e. U1's of chip DS18B20 Digital pin 2 accesses, simultaneously the pin 2 connecting resistance R5 pull-up of U1, and the pin 3 of U1 meets power vd D_3.3V and and connects filter capacitor The pin 1 connection circuit plate ground of C18, U1.Single-chip microcomputer sets up the monobus communication with U1 by Digital I/O, reads the temperature letter of node Cease and report.
Refer to Fig. 6, RS485 telecommunication circuit 36 the UART unit pin 17 of IC1 is connected the pin 1 of U2 by R7, drawn Foot 18 connects the pin 4 of U2 by R10, and the pin 16 of IC1 connects pin 2 and the pin 3 of U2, and the pin 6 of U2, pin 7 lead to Crossing resistance R8, R9, R11 and access RS485 output interface, U2 pin 8 meets power vd D_3.3V, and U2 pin 5 connects power supply ground.Pass through IC UART unit access RS485 communication, position Node station positioning cards is carried out parameter setting.
Referring to Fig. 7, electric quantity acquisition circuit 32 by after battery voltage divider, connects single-chip microcomputer IC1 simulation defeated by R20 and R21 Enter pin P1_2, be simultaneously connected with decoupling capacitor C30 and overvoltage protection diode D5, test battery input voltage VDD_3.3V, real Time monitoring node supplying cell information, and node information about power is reported.
Above content is to combine the detailed description made for the present invention of concrete preferred implementation, it is impossible to assert the present invention It is embodied as being only limitted to these explanations.For those skilled in the art, without departing from structure of the present invention On the premise of think of, it is also possible to make some simple deduction or replace, all should be considered as belonging to the present invention and be wanted by the right submitted to Seek the invention protection domain that book determines.

Claims (10)

1. indoor positioning based on a Zigbee monitoring system, it is characterised in that: it includes database hub (1), Duo Gewei Put node (2), multiple positioning cards (3), multiple route and data transmission node (4);Each position is saved by database hub (1) The information record of point (2) is also stored, and shown by visualized map mode;The unknown of each nodes of locations (2) timing search Positioning cards (3) also sets up connection, is kept and database hub (1) by these routes and data transmission node (4) simultaneously Communication path;All positioning cards (3) pass through broadcast mode, are sent in presence information, and set up and these nodes of locations (2) And these route and communication paths of data transmission node (4).
Indoor positioning based on Zigbee the most according to claim 1 monitoring system, it is characterised in that: each nodes of locations (2) the networking signal of Scan orientation card (3), and be attached therewith;Positioning cards (3) foundation is logical with nodes of locations (2) After letter connects, the valid data reported are saved in internal RAM, the RSSI signal intensity of detection communication, valid data are beaten Bao Hou, waits and route and the communication of data transmission node (4), and packing data reports route and data transmission node (4).
Indoor positioning based on Zigbee the most according to claim 2 monitoring system, it is characterised in that: positioning cards (3) A kind of Distributed localization computational methods are used to set up the communication with these nodes of locations (2).
Indoor positioning based on Zigbee the most according to claim 1 monitoring system, it is characterised in that: each positioning cards Including control module (30) and be electrically connected with control module (30) respectively and be controlled by the battery/power source of control module (30) Management module (31), electric quantity acquisition circuit (32), temperature collection circuit (33), state indicator module (34), radio circuit (35), Telecommunication circuit (36);By electric quantity acquisition circuit (32), the information about power of the corresponding positioning cards of Real-time Collection;Pass through temperature acquisition Circuit (33), the temperature parameter of the corresponding positioning cards of Real-time Collection;By state indicator module (34), by duty with instruction The mode of lamp is shown;By radio circuit (35), carry out receiving and dispatching and detecting signal intensity by radio frequency signal;Pass through RS485 Telecommunication circuit (36), is configured corresponding positioning cards.
Indoor positioning based on Zigbee the most according to claim 4 monitoring system, it is characterised in that: by a battery Battery is managed module (31) for being electrically accessed battery/power source by access interface, the anode series winding diode D6 of battery, out-put supply VDD manages the supply voltage of module (31) as battery/power source;Power vd D is converted to electricity by battery/power source management module (31) Source VCC, and by both power supplys for the modules of corresponding positioning cards (3).
Indoor positioning based on Zigbee the most according to claim 5 monitoring system, it is characterised in that: battery/power source pipe Reason module (31) includes power supply chip, resistance R3, electric capacity C11, electric capacity C14, diode D6;The power supply input of described power supply chip End IN connects power vd D, power vd D mono-aspect and connects described power supply core via electric capacity C11 ground connection, another aspect via resistance R3 Enable Pin EN of sheet;The power output end OUT out-put supply VCC, the earth terminal GND of described power supply chip of described power supply chip connect Ground and and power supply VCC between serial capacitance C14.
Indoor positioning based on Zigbee the most according to claim 5 monitoring system, it is characterised in that: control module (30) Including CC2530 chip, reset circuit, two crystal oscillating circuits, decoupling and filter circuit, RF transmit-receive circuit;Reset circuit pair CC2530 chip provides and resets, and two crystal oscillating circuits provide the crystal oscillator of job demand, decoupling and filter circuit to CC2530 chip CC2530 chip is realized decoupling and filter function, and RF transmit-receive circuit realizes radio transmission-receiving function to CC2530 chip.
Indoor positioning based on Zigbee the most according to claim 7 monitoring system, it is characterised in that: decoupling and filtered electrical Road includes inductance L1, electric capacity C1~C8;Electric capacity C1 is connected in parallel on the pin AVDD_DREG of CC2530 chip, and electric capacity C2 is connected in parallel on On the pin DVDD of CC2530 chip, electric capacity C3 is connected in parallel on the pin AVDD5/AVDD_SOC of CC2530 chip, and electric capacity C4 is also Be associated on the pin AVDD3 of CC2530 chip, electric capacity C5, electric capacity C6 be all connected in parallel on the pin AVDD2 of CC2530 chip, AVDD1, On AVDD4, electric capacity C7 is connected in parallel on the pin AVDD_GUARD of CC2530 chip, electric capacity C8 in parallel with electric capacity C1~C7 and via Inductance L1 connects power vd D.
Indoor positioning based on Zigbee the most according to claim 7 monitoring system, it is characterised in that: RF transmit-receive circuit Including electric capacity C9~C10, C12, C15~C17 and inductance L2~L4;One end of electric capacity C9 connects the pin RF_ of CC2530 chip P, the other end of electric capacity C9 is via electric capacity C10, electric capacity C17 ground connection;One end of electric capacity C12 connects the pin RF_ of CC2530 chip N, the other end of electric capacity C12 is via electric capacity C15 ground connection;One end ground connection of inductance L2, the other end of inductance L2 is connected to electric capacity C9 And between electric capacity C10 and be also connected with one end of inductance L3, the other end of inductance L3 be connected between electric capacity C12 and electric capacity C15 and Being also connected with one end of inductance L4, the other end of inductance L4 is connected between electric capacity C10 and electric capacity C17 and also via electric capacity C13 connect Exterior antenna E1;The other end ground connection of one termination the exterior antenna E1, electric capacity C16 of electric capacity C16.
10. determine according to the indoor of indoor positioning based on Zigbee monitoring system described in any one in claim 1 to 9 for one kind Position monitoring method, it is characterised in that: it comprises the following steps:
According to have database hub (1) server provide figure selecting and set up an indoor locating system display figure; Several mount points are selected to pass with installation site node (2), multiple positioning cards (3), multiple route and data in display figure Sending node (4) and all initialize, rear employing hand-held set debugs each node, it is ensured that node communication and data are normal;According to Field condition is chosen appropriate location and is installed switch (5) and netting twine, builds complete by whole hardware device;
The networking signal of nodes of locations (2) Scan orientation card (3), and be attached therewith, set up and communicate with nodes of locations (2) After connection, the valid data parameter reported being saved in the internal RAM of positioning cards (3), the RSSI signal of detection communication is strong Degree, after being packed by useful signal, waits and route and the communication of data transmission node (4), and packing data reports route and number According to transmission node (4);
Positioning cards (3) is set up and is communicated with several nodes of locations (2), uses a kind of Distributed localization computational methods;Position is saved Point (2), according to the information received from closest positioning cards (3), carries out local computing to positioning cards (3), determines phase The position of pass positioning cards (3), and obtain the node device ID parameter of nearest positioning cards (3), with the relevant information of self After parameter packing, wait and route and the communication of data transmission node (4);
Route and data transmission node (4) are in non-stop run state, monitor the signal of communication of all nodes, when detection puts in place After putting the signal of communication of node (2) and positioning cards (3), actively set up and be connected with the radio communication of each node, each is saved The effective data packets of point is forwarded to server by netting twine and switch (5);
Route and the packet that reports of data transmission node (4) are resolved by server, show each nodes of locations (2) in wire State, and according to alignment system initialization data, computational analysis goes out the geographical position of positioning cards (3);According to positioning cards (3) Packet obtains its relative position;According to the data of multiple spot nodes of locations (2), accurately calculate the absolute position of positioning cards (3) Put.
CN201610846672.3A 2016-09-23 2016-09-23 Indoor positioning based on Zigbee monitoring system and monitoring method thereof CN106255049A (en)

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