CN104394591A - Indoor positioning offline training system - Google Patents
Indoor positioning offline training system Download PDFInfo
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- CN104394591A CN104394591A CN201410765877.XA CN201410765877A CN104394591A CN 104394591 A CN104394591 A CN 104394591A CN 201410765877 A CN201410765877 A CN 201410765877A CN 104394591 A CN104394591 A CN 104394591A
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- indoor positioning
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- wifi
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- 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 invention discloses an indoor positioning offline training system, belongs to the technical field of indoor positioning, and solves the problem of low measurement precision caused by large workload of manual operation in a conventional process of creating an offline database. The indoor positioning offline training system is characterized in that a mobile terminal is capable of acquiring a wireless signal emitted by a WiFi/ZigBee/RFID (radio frequency identification device) combined wireless network and an infrared signal emitted by an infrared emitter; the single output end of a WiFi/ZigBee/RFID combined wireless communication module is connected with the original wireless information input end of a CPU (central processing unit); the signal output end of an infrared receiver set is connected with the infrared information signal input end of the CPU; the signal output ends of all the infrared receivers in the infrared receiver set serve as the signal output end of the infrared receiver set. The indoor positioning offline training system is suitable for creating the offline database in the technical field of indoor positioning.
Description
Technical field
The invention belongs to indoor positioning technologies field.
Background technology
At present, along with the continuous maturation of indoor positioning technologies, the requirement of people to indoor positioning improves constantly.The mode utilizing wireless strengths finger print information to position obtains the concern of more and more people, and the very large factor affecting which precision is the foundation of its initial fingerprint database.In offline database process of establishing, people adopt the signal source Modeling Calculation indoor radio signal intensity distributions feature building database to arranging in advance usually, also people is had to fix a point one by one to carry out data acquisition by terminal, but the precision of these two kinds of methods is all not high enough, the former is not owing to having actual test comparatively big error, although the latter has carried out actual test, but surveying work amount is huge, and be difficult to obtain accurate certainty of measurement.
Summary of the invention
The present invention is large in order to solve manual operation workload in traditional offline database process of establishing, and then the problem causing certainty of measurement low, now provides indoor positioning off-line training system.
Indoor positioning off-line training system, it comprises: WiFi/ZigBee/RFID combination of wireless network, mobile terminal, infrared transmitter group;
Mobile terminal can gather the wireless signal of WiFi/ZigBee/RFID combination of wireless network launches, and the infrared signal that infrared transmitter group is launched;
Described mobile terminal comprises: WiFi/ZigBee/RFID combination of wireless communication module, infrared receiver group, CPU and aircraft, and wherein, infrared receiver group comprises at least four infrared receivers;
WiFi/ZigBee/RFID combination of wireless communication module, infrared receiver group and CPU are all fixing on board the aircraft;
The wireless signal acquiring end of WiFi/ZigBee/RFID combination of wireless communication module is as the wireless signal acquiring end of mobile terminal, and the signal output part of WiFi/ZigBee/RFID combination of wireless communication module connects the original wireless information input terminal of CPU;
The infrared signal collection terminal of infrared receiver group is as the infrared signal collection terminal of mobile terminal, the signal output part of infrared receiver group connects the infrared information signal input part of CPU, and in infrared receiver group, the signal output part of all infrared receivers is simultaneously as the signal output part of infrared receiver group.
Aircraft is quadrotor.
Above-mentioned indoor positioning off-line training system also comprises: height sensor, and height sensor is for gathering the height of mobile terminal, and the signal output part of height sensor connects the altitude signal input of CPU.
Above-mentioned indoor positioning off-line training system also comprises: remote controller, and remote controller is for controlling flying height and the flight path of aircraft.
Above-mentioned indoor positioning off-line training system also comprises: remote wireless network information database, realizes RFDC between mobile terminal and remote wireless network information database.
Above-mentioned indoor positioning off-line training system also comprises: SD card, and the location information signal output of CPU connects the signal input part of SD card.
Indoor positioning off-line training system of the present invention, quadrotor is adopted to gather wireless data as mobile terminal and add height sensor, make in indoor positioning process, not only can obtain the transverse and longitudinal coordinate information in site undetermined, the elevation information in site undetermined can also be obtained.Meanwhile, mobile terminal can autokinetic movement, and whole data acquisition process implementation reduces artificial collecting work amount from master control.Utilize CPU to concentrate storage of collected signal, obtain the more accurate test result of wind.The present invention adopts and controls two kinds of data acquisition schemes from master control and Remote, has stronger flexibility.
Accompanying drawing explanation
Fig. 1 is the structural representation of indoor positioning off-line training system;
Fig. 2 is the structural representation of mobile terminal.
Embodiment
Embodiment one: see figures.1.and.2 and illustrate present embodiment, the indoor positioning off-line training system described in present embodiment, it comprises: WiFi/ZigBee/RFID combination of wireless network 1, mobile terminal 2, infrared transmitter group 3;
Mobile terminal 2 can gather the wireless signal that WiFi/ZigBee/RFID combination of wireless network 1 is launched, and the infrared signal that infrared transmitter group 3 is launched;
Described mobile terminal 2 comprises: WiFi/ZigBee/RFID combination of wireless communication module 2-1, infrared receiver group 2-2, CPU2-3 and aircraft 2-4, and wherein, infrared receiver group 2-2 comprises at least four infrared receivers;
WiFi/ZigBee/RFID combination of wireless communication module 2-1, infrared receiver group 2-2 and CPU2-3 are all fixed on aircraft 2-4;
The wireless signal acquiring end of WiFi/ZigBee/RFID combination of wireless communication module 2-1 is as the wireless signal acquiring end of mobile terminal 2, and the signal output part of WiFi/ZigBee/RFID combination of wireless communication module 2-1 connects the original wireless information input terminal of CPU2-3;
The infrared signal collection terminal of infrared receiver group 2-2 is as the infrared signal collection terminal of mobile terminal 2, the signal output part of infrared receiver group 2-2 connects the infrared information signal input part of CPU2-3, and in infrared receiver group 2-2, the signal output part of all infrared receivers is simultaneously as the signal output part of infrared receiver group 2-2.
Embodiment two: present embodiment is described further the indoor positioning off-line training system described in embodiment one, in present embodiment, WiFi/ZigBee/RFID combination of wireless network 1 comprises n WiFi/ZigBee/RFID combination of wireless node, n WiFi/ZigBee/RFID combination of wireless node arranges with x × y matrix form and is fixed on the ceiling of indoor to be positioned, wherein x × y=n.
Embodiment three: present embodiment is described further the indoor positioning off-line training system described in embodiment one, in present embodiment, infrared transmitter group 3 comprises k infrared transmitter, all infrared transmitter in infrared transmitter group 3 are evenly distributed on the wall of indoor surrounding to be positioned, infrared transmitter quantity in indoor two relative sidewalls is identical, and in mirror symmetrical structure.
Embodiment four: present embodiment is described further the indoor positioning off-line training system described in embodiment one, in present embodiment, all infrared receivers in infrared receiver group 2-2 are evenly distributed on the surrounding of aircraft 2-4.
Present embodiment, all infrared receivers in infrared receiver group 2-2 are evenly distributed on the surrounding of aircraft 2-4, can ensure mobile terminal 2 more fully receiving infrared-ray signal.
Embodiment five: present embodiment is described further the indoor positioning off-line training system described in embodiment one, in present embodiment, CPU2-3 is flied at a constant speed by the flying vehicles control module controls aircraft 2-4 being embedded in aircraft 2-4 inside, and the flight control signal input/output terminal of CPU2-3 connects the flight control signal input/output terminal of flying vehicles control module.
CPU2-3 controls aircraft 2-4 by the software simulating that its inside is embedded with and flies at a constant speed, and flying vehicles control module comprises with lower unit: the unit of setting flying speed, the unit of setting flight path.
Embodiment six: present embodiment is described further the indoor positioning off-line training system described in embodiment one, and in present embodiment, aircraft 2-4 is quadrotor.
Embodiment seven: present embodiment is described further the indoor positioning off-line training system described in embodiment one, two, three, four, five or six, in present embodiment, it also comprises: height sensor, height sensor is for gathering the height of mobile terminal 2, and the signal output part of height sensor connects the altitude signal input of CPU2-3.
Add height sensor in present embodiment, to obtain aircraft place elevation information, namely realize locating more accurately.Make in indoor positioning process, not only can obtain the transverse and longitudinal coordinate information in site undetermined, the elevation information in site undetermined can also be obtained.
Embodiment eight: present embodiment is described further the indoor positioning off-line training system described in embodiment one, two, three, four, five or six, in present embodiment, it also comprises: remote controller, and remote controller is for controlling flying height and the flight path of aircraft 2-4.
In indoor positioning off-line training system described in embodiment one, two, three, four, five or six, mobile terminal 2 is not autokinetic movement when carrying out data acquisition, but by CPU control realization.In present embodiment, realize wireless data between remote controller and aircraft 2-4 mutual, according to the required precision of indoor positioning, from the density of main separation sampled point, can increase work efficiency, have higher flexibility.According to different working methods, provide the locator data of different accuracy, meet different mission requirements.Adopt the technical scheme of telecontrolled aircraft of the prior art just can reach the flying height of control aircraft 2-4 described in present embodiment and the object of flight path.
Embodiment nine: present embodiment is described further the indoor positioning off-line training system described in embodiment one, two, three, four, five or six, in present embodiment, it also comprises: SD card, and the location information signal output of CPU2-3 connects the signal input part of SD card.
Be embedded with offline local database in SD card, this database is the data storage management storehouse based on CPU operation result and SD card using C++ to write, and can carry out tissue, the store and management of data.
Embodiment ten: present embodiment is described further the indoor positioning off-line training system described in embodiment one, two, three, four, five or six, in present embodiment, it also comprises: remote wireless network information database, realizes RFDC between mobile terminal 2 and remote wireless network information database.
Radio communication is there is between mobile terminal 2 and remote wireless network information database, remote wireless network information database is the data storage management storehouse based on CPU2-3 operation result using C++ to write, can carry out tissue, the store and management of data, it comprises WiFi fingerprint intensity data storehouse, ZigBee information database and RFID information database.
Embodiment 11: present embodiment is described further the indoor positioning off-line training system described in embodiment one, two, three, four, five or six, and in present embodiment, it also comprises: display module; The location information signal output of CPU2-3 connects the signal input part of display module.
When practical application, indoor positioning off-line training system of the present invention, n WiFi/ZigBee/RFID combination of wireless node is fixed on the ceiling of indoor to be positioned with x × y matrix form, all infrared transmitter in infrared transmitter group 3 are evenly distributed on the wall of indoor surrounding to be positioned, infrared transmitter quantity in indoor two relative sidewalls is identical, and in mirror symmetrical structure.
When carrying out off-line data collecting, mobile terminal 2 is placed on and treats to be a little indoor original position, allow aircraft 2-4 be positioned at certain altitude, infrared receiver group 2-2 gathers the infrared signal that infrared transmitter group 3 is launched, and is sent in CPU2-3 by this signal; WiFi/ZigBee/RFID combination of wireless communication module 2-1 gathers the wireless signal that WiFi/ZigBee/RFID combination of wireless network 1 is launched, and then obtains wireless signal strength information, and is sent in CPU2-3 by this wireless signal strength information; CPU2-3 is flown to other positions at sustained height by the flying vehicles control module controls aircraft 2-4 being embedded in aircraft 2-4 inside, then infrared signal and the wireless signal of this position is gathered, by that analogy, aircraft 2-4 is kept to fly at a constant speed at sustained height, the infrared signal that often automatic collection current location receives after arbitrary time span t and wireless signal.
Current elevation information is sent to CPU by simultaneous altitude transducer.In order to ensure the accuracy of Information Monitoring, mobile terminal 2 to move n image data along pre-determined route in located space, leaves in respectively in WiFi intensity fingerprint database, ZigBee information database and RFID information database after CPU process.Meanwhile, CPU can also by the signal strength information of WiFi signal intensity, ZigBee signal strength signal intensity and the RFID signal after simplifying stored in the local offline database in SD card.
After the wireless information collection work of sustained height completes, CPU sends instruction to flight control modules, control mobile terminal 2 and move to another height, carry out the collecting work of the signal strength information of WiFi signal intensity, ZigBee signal strength signal intensity and RFID signal according to above-mentioned work.Until complete the collecting work of the signal strength information of the WiFi signal intensity of whole located space, ZigBee signal strength signal intensity and RFID signal, complete the foundation of remote wireless network information database and local offline database.
Claims (10)
1. indoor positioning off-line training system, is characterized in that, it comprises: WiFi/ZigBee/RFID combination of wireless network (1), mobile terminal (2), infrared transmitter group (3);
Mobile terminal (2) can gather the wireless signal that WiFi/ZigBee/RFID combination of wireless network (1) is launched, and the infrared signal that infrared transmitter group (3) is launched;
Described mobile terminal (2) comprising: WiFi/ZigBee/RFID combination of wireless communication module (2-1), infrared receiver group (2-2), CPU (2-3) and aircraft (2-4), wherein, infrared receiver group (2-2) comprises at least four infrared receivers;
WiFi/ZigBee/RFID combination of wireless communication module (2-1), infrared receiver group (2-2) and CPU (2-3) are all fixed on aircraft (2-4);
The wireless signal acquiring end of WiFi/ZigBee/RFID combination of wireless communication module (2-1) is as the wireless signal acquiring end of mobile terminal (2), and the signal output part of WiFi/ZigBee/RFID combination of wireless communication module (2-1) connects the original wireless information input terminal of CPU (2-3);
The infrared signal collection terminal of infrared receiver group (2-2) is as the infrared signal collection terminal of mobile terminal (2), the signal output part of infrared receiver group (2-2) connects the infrared information signal input part of CPU (2-3), and in infrared receiver group (2-2), the signal output part of all infrared receivers is simultaneously as the signal output part of infrared receiver group (2-2).
2. indoor positioning off-line training system according to claim 1, it is characterized in that, WiFi/ZigBee/RFID combination of wireless network (1) comprises n WiFi/ZigBee/RFID combination of wireless node, n WiFi/ZigBee/RFID combination of wireless node arranges with x × y matrix form and is fixed on the ceiling of indoor to be positioned, wherein x × y=n.
3. indoor positioning off-line training system according to claim 1, it is characterized in that, infrared transmitter group (3) comprises k infrared transmitter, all infrared transmitter in infrared transmitter group (3) are evenly distributed on the wall of indoor surrounding to be positioned, infrared transmitter quantity in indoor two relative sidewalls is identical, and in mirror symmetrical structure.
4. indoor positioning off-line training system according to claim 1, is characterized in that, all infrared receivers in infrared receiver group (2-2) are evenly distributed on the surrounding of aircraft (2-4).
5. indoor positioning off-line training system according to claim 1, it is characterized in that, CPU (2-3) is flied at a constant speed by the flying vehicles control module controls aircraft (2-4) being embedded in aircraft (2-4) inner, and the flight control signal input/output terminal of CPU (2-3) connects the flight control signal input/output terminal of flying vehicles control module.
6. indoor positioning off-line training system according to claim 1, is characterized in that, aircraft (2-4) is quadrotor.
7. the indoor positioning off-line training system according to claim 1,2,3,4,5 or 6, it is characterized in that, it also comprises: height sensor, height sensor is for gathering the height of mobile terminal (2), and the signal output part of height sensor connects the altitude signal input of CPU (2-3).
8. the indoor positioning off-line training system according to claim 1,2,3,4,5 or 6, it is characterized in that, it also comprises: remote controller, and remote controller is for controlling flying height and the flight path of aircraft (2-4).
9. the indoor positioning off-line training system according to claim 1,2,3,4,5 or 6, it is characterized in that, it also comprises: SD card, and the location information signal output of CPU (2-3) connects the signal input part of SD card.
10. the indoor positioning off-line training system according to claim 1,2,3,4,5 or 6, it is characterized in that, it also comprises: remote wireless network information database, realizes RFDC between mobile terminal (2) and remote wireless network information database.
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| CN201410765877.XA CN104394591A (en) | 2014-12-12 | 2014-12-12 | Indoor positioning offline training system |
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| CN201410765877.XA CN104394591A (en) | 2014-12-12 | 2014-12-12 | Indoor positioning offline training system |
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Cited By (1)
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