CN104166149A - Indoor signal acquisition method and device based on MEMS sensor - Google Patents
Indoor signal acquisition method and device based on MEMS sensor Download PDFInfo
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- CN104166149A CN104166149A CN201310185782.6A CN201310185782A CN104166149A CN 104166149 A CN104166149 A CN 104166149A CN 201310185782 A CN201310185782 A CN 201310185782A CN 104166149 A CN104166149 A CN 104166149A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
- G01C21/206—Instruments for performing navigational calculations specially adapted for indoor navigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/165—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
- G01S19/49—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system whereby the further system is an inertial position system, e.g. loosely-coupled
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Automation & Control Theory (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses an indoor signal acquisition method and device based on an MEMS sensor. The method comprises the following steps: taking an indoor path starting point as an origin of coordinates of the MEMS (micro electro mechanical system) sensor; enabling the MEMS sensor to move along an indoor path, and in the moving process, calculating measurement coordinate positions of acquisition points on the indoor path by utilizing the MEMS sensor and collecting index parameters of wireless signals at the acquisition points; according to the physical coordinate position of the starting point and the measurement coordinate positions of the acquisition points, calculating the physical coordinate positions of the acquisition points; and obtaining correspondence relation of the physical coordinate positions of the acquisition points and the index parameters of the wireless signals corresponding to the acquisition points. Through the technical scheme provided in the invention, automatic acquisition and measurement of indoor signals can be realized, thereby improving the precision of the acquisition measurement positions and the signal parameters, and improving acquisition and measurement efficiency.
Description
Technical field
The present invention relates to positioning and navigation field, particularly a kind of indoor signal acquisition method and device based on MEMS sensor.
Background technology
For the service of indoor positioning is provided, the first various signal indexs that can be used for location in measuring chamber, for example intensity of WiFi, base station signal.Conventionally measure various signals by the method for getting drive test ready.
First the method sets the reference point of outdoor gps signal.Next, stepped into indoorly by survey crew, often walk to a measurement point, in indoor position, estimate its approximate location at the screen map of mobile terminal according to this survey crew, by get to record the map location of measurement point ready at screen map.Meanwhile, use signal-testing apparatus to measure the signal parameter of position at this measurement point, as the signal strength information of WiFi signal or base station signal.Next, utilize the longitude and latitude of the map location computation and measurement point of getting ready on screen map, to obtain the corresponding relation of position and signal parameter.
But, in this method, getting position ready is to determine by survey crew estimated position, and not only possibility estimated position is inaccurate, simultaneously, survey crew carries out craft in each measuring position and gets operation ready, to generate measurement point on screen map, and may be because click scope be excessive or click location deviation, make the location point of record inaccurate, further reduce the measuring accuracy of measuring position, cause the corresponding relation of positional information and signal parameter incorrect, and the activity duration has been long.
Summary of the invention
According to the embodiment of the present invention aspect, a technical matters to be solved is: a kind of indoor signal acquisition method and device based on MEMS sensor is provided, automatically gathers measurement to realize indoor signal.
A kind of indoor signal acquisition method based on MEMS sensor that the embodiment of the present invention provides, the true origin using indoor path starting point as micro-electromechanical system (MEMS) sensor, described method comprises:
MEMS sensor is moved along described indoor path, in motion process, utilize described MEMS sensor to calculate the measurement coordinate position of collection point on described indoor path, and gather the index parameter of wireless signal in described collection point;
According to the measurement coordinate position of the physical coordinates position of described starting point and described collection point, calculate the physical coordinates position of described collection point;
Obtain the corresponding relation of the physical coordinates position of the described collection point wireless signal index parameter corresponding with described collection point.
Preferably, utilize described MEMS sensor to calculate the measurement coordinate position of collection point on described indoor path, specifically comprise:
According to predetermined time interval, described MEMS sensor calculate motion to the measurement coordinate position of current location, described current location is the collection point on described indoor path.
Preferably, the physical coordinates position of described starting point is the longitude and latitude of the described starting point that obtains in advance; Or
Described method also comprises:
Detect gps signal in described starting point, obtain the longitude and latitude of described starting point by gps signal testing result, as the physical coordinates position of starting point.
Preferably, according to the measurement coordinate position of the physical coordinates position of described starting point and described collection point, calculate the physical coordinates position of described collection point, specifically comprise:
The position offset relationship of the measurement coordinate position based on described true origin and collection point, utilizes the longitude and latitude of described starting point, calculates the longitude and latitude that obtains collection point as the physical coordinates position of collection point.
Preferably, described wireless signal comprises WiFi signal or cellular signal;
The index parameter of described WiFi signal comprises SSID, MAC Address, the WiFi signal intensity of WiFi focus;
The index parameter of described cellular signal comprises the cellular cell ID of cellular signal, the signal intensity of cellular signal.
A kind of indoor signal harvester based on MEMS sensor that the embodiment of the present invention provides, described device comprises:
Micro-electromechanical system (MEMS) sensor, described MEMS sensor is using indoor path starting point as true origin, and described micro-electromechanical system (MEMS) sensor, for moving along described indoor path, in motion process, calculate the measurement coordinate position of collection point on described indoor path;
Signal gathering unit, for gathering the index parameter of wireless signal in described collection point;
Computing unit, for according to the measurement coordinate position of the physical coordinates position of described starting point and described collection point, calculates the physical coordinates position of described collection point;
Output unit, for obtaining and export the corresponding relation of the physical coordinates position of the described collection point wireless signal index parameter corresponding with described collection point.
Preferably, described device also comprises:
Timing unit, for according to predetermined time interval carry out timing;
Described MEMS sensor, specifically for according to interval of described predetermined time, calculate motion to the measurement coordinate position of current location, described current location is the collection point on described indoor path.
Preferably, the physical coordinates position of described starting point is the longitude and latitude of the described starting point that obtains in advance; Or
Described device also comprises:
GPS measuring unit, for detecting gps signal in described starting point, obtains the longitude and latitude of described starting point, as the physical coordinates position of starting point by gps signal testing result.
Preferably, computing unit, specifically for the position offset relationship of the measurement coordinate position based on described true origin and collection point, utilizes the longitude and latitude of described starting point, calculates the longitude and latitude that obtains collection point as the physical coordinates position of collection point.
Preferably, described signal gathering unit, specifically comprises:
WiFi signal gathering unit, for gathering SSID, MAC Address, the WiFi signal intensity of WiFi focus;
Cellular signal collecting unit, for gathering the cellular cell mark of cellular signal, the signal intensity of cellular signal.
Indoor signal acquisition method and the device based on the MEMS sensor that provide based on the above embodiment of the present invention, utilization makes MEMS sensor move along indoor path, in motion process, automatically the measurement coordinate position of collection point on the interior path of counting chamber, and according to the measurement coordinate position of the physical coordinates position of starting point and collection point, thereby the corresponding relation of the physical coordinates position that automatically the obtains collection point wireless signal index parameter corresponding with collection point, realize indoor signal and automatically gathered measurement, without manual clicking operation, not only improve the precision that gathers measuring position and signal parameter corresponding relation, and improve to gather and measured efficiency.
By the detailed description to exemplary embodiment of the present invention referring to accompanying drawing, it is clear that further feature of the present invention and advantage thereof will become.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not to draw according to actual proportionate relationship meanwhile.In similar label and letter accompanying drawing below, represent similar terms, therefore, once be defined in an a certain Xiang Yi accompanying drawing, in accompanying drawing subsequently, do not need it to be further discussed.
The accompanying drawing that forms a part for instructions has been described embodiments of the invention, and together with the description for explaining principle of the present invention.
With reference to accompanying drawing, according to detailed description below, can more be expressly understood the present invention, wherein:
Fig. 1 illustrates the schematic flow sheet of a kind of embodiment of indoor signal acquisition method based on MEMS sensor provided by the present invention;
Fig. 2 shows the indoor path schematic diagram of the indoor signal acquisition method based on MEMS sensor provided by the present invention;
Fig. 3 illustrates the structural representation of a kind of embodiment of indoor signal harvester based on MEMS sensor provided by the present invention;
Fig. 4 illustrates the structural representation of a kind of embodiment of indoor signal harvester based on MEMS sensor provided by the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.It should be noted that: unless illustrate in addition, the parts of setting forth in these embodiments and the positioned opposite of step do not limit the scope of the invention.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in suitable situation, described technology, method and apparatus should be regarded as authorizing a part for instructions.
In all examples with discussing shown here, it is exemplary that any occurrence should be construed as merely, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
MEMS (micro electro mechanical system) (the Micro Electro Mechanical Systems that the embodiment of the present invention is used, MEMS) sensor can be MEMS inertial sensor or other sensor, can comprise the assemblies such as gyroscope, accelerometer, magnetometer, pressure gauge, be integrated in electronic product by integrated circuit etc.
Taking MEMS inertial sensor as example, it is mainly made up of gyroscope and accelerometer.The result of gyroscope and accelerometer output is angular velocity and acceleration elapsed time integration and obtain.By carrying MEMS inertial sensor equipment moving, utilize distance and the direction of motion automatically to calculate the current location of exercise end based on origin.
Shown in Figure 1, Fig. 1 illustrates the schematic flow sheet of a kind of embodiment of indoor signal acquisition method based on MEMS sensor provided by the present invention.In the indoor signal acquisition method based on MEMS sensor that this embodiment provides, the true origin using indoor path starting point as micro-electromechanical system (MEMS) sensor, the method comprises:
101, MEMS sensor is moved along indoor path, in motion process, utilize the measurement coordinate position of collection point on the interior path of MEMS sensor counting chamber, and gather the index parameter of wireless signal in collection point;
102, according to the measurement coordinate position of the physical coordinates position of starting point and collection point, calculate the physical coordinates position of collection point;
103, obtain the corresponding relation of the physical coordinates position of the collection point wireless signal index parameter corresponding with collection point.
In the indoor signal acquisition method based on MEMS sensor that the above embodiment of the present invention provides, utilization makes MEMS sensor move along indoor path, in motion process, automatically the measurement coordinate position of collection point on the interior path of counting chamber, and according to the measurement coordinate position of the physical coordinates position of starting point and collection point, thereby the corresponding relation of the physical coordinates position that automatically the obtains collection point wireless signal index parameter corresponding with collection point, realize indoor signal and automatically gathered measurement, not only improve the precision that gathers measuring position and signal parameter corresponding relation, and improve to gather and measured efficiency.
According to the inventive method embodiment concrete example, utilize the measurement coordinate position of collection point on the interior path of MEMS sensor counting chamber, specifically comprise:
According to predetermined time interval, MEMS sensor calculate motion to the measurement coordinate position of current location, current location is the collection point on indoor path.
Shown in Figure 2, the figure shows the indoor path schematic diagram of the indoor signal acquisition method based on MEMS sensor provided by the present invention.
Wherein the physical coordinates position of starting point is the longitude and latitude of the starting point that obtains in advance, also can detect gps signal in starting point, obtains the longitude and latitude of starting point, as the physical coordinates position of starting point by gps signal testing result.
In Fig. 2, the starting point in indoor path (i.e. starting point in figure) can be at indoor window or doorway place, more can monitor gps signal in these positions.Collection point in Fig. 2 is according to predetermined time interval, and MEMS sensor movement institute is to current location, i.e. each collection point.MEMS sensor obtains and measures coordinate position in each collection point.
According to the inventive method embodiment concrete example, according to the measurement coordinate position of the physical coordinates position of starting point and collection point, calculate the physical coordinates position of collection point, specifically comprise:
The position offset relationship of the measurement coordinate position based on true origin and collection point, utilizes the longitude and latitude of starting point, calculates the longitude and latitude that obtains collection point as the physical coordinates position of collection point.Because indoor path starting point is as the true origin of MEMS sensor, the measurement coordinate position of the collection point of MEMS sensor measurement, taking this true origin as basis, can obtain the measurement coordinate position of collection point with respect to the position skew of this true origin.Correspond to physical coordinates position, in the physical coordinates position that obtains starting point, according to this position offset relationship, by the mapping measuring between coordinate system and physical coordinates system, obtain the physical coordinates position of collection point.
Exemplarily, the wireless signal in the various embodiments described above comprises WiFi signal or cellular signal.The index parameter of WiFi signal comprises service set (SSID), MAC Address, the WiFi signal intensity of WiFi focus.The index parameter of cellular signal comprises the cellular cell mark (Cell ID) of cellular signal, the signal intensity of cellular signal.
Shown in Figure 3, Fig. 3 illustrates the structural representation of a kind of embodiment of indoor signal harvester based on MEMS sensor provided by the present invention.The indoor signal harvester based on MEMS sensor that this embodiment provides comprises:
MEMS sensor 301, MEMS sensor is using indoor path starting point as true origin, for moving along indoor path, in motion process, the measurement coordinate position of collection point on path in counting chamber; MEMS sensor 301, according to specific implementation, can comprise gyro module and accelerometer module;
Signal gathering unit 302, for gathering the index parameter of wireless signal in collection point;
Computing unit 303, for according to the measurement coordinate position of the physical coordinates position of starting point and collection point, calculates the physical coordinates position of collection point;
Output unit 304, for obtaining and export the corresponding relation of the physical coordinates position of the collection point wireless signal index parameter corresponding with collection point.
Shown in Figure 4, Fig. 4 illustrates the structural representation of a kind of embodiment of indoor signal harvester based on MEMS sensor provided by the present invention.According to apparatus of the present invention embodiment concrete example, this device also comprises:
Timing unit 401, for according to predetermined time interval carry out timing.MEMS sensor 301, specifically for according to predetermined time interval, calculate motion to the measurement coordinate position of current location, current location is the collection point on indoor path.
The physical coordinates position of starting point is the longitude and latitude of the starting point that obtains in advance.
According to apparatus of the present invention embodiment concrete example, this device also comprises:
GPS measuring unit 402, for detecting gps signal in starting point, obtains the longitude and latitude of starting point, as the physical coordinates position of starting point by gps signal testing result.
According to apparatus of the present invention embodiment concrete example, computing unit 303, specifically for the position offset relationship of the measurement coordinate position based on true origin and collection point, utilize the longitude and latitude of starting point, calculate the longitude and latitude that obtains collection point as the physical coordinates position of collection point.
According to apparatus of the present invention embodiment concrete example, signal gathering unit, specifically comprises:
WiFi signal gathering unit 403, for gathering SSID, MAC Address, the WiFi signal intensity of WiFi focus;
Cellular signal collecting unit 404, for gathering the cellular cell mark of cellular signal, the signal intensity of cellular signal.
This device can also comprise initialization module, for setting the origin (0,0) of starting point and binding with GPS longitude and latitude.
By the indoor signal harvester based on MEMS sensor provided by the invention is applied to actual signals collecting, the indoor signal that originally gathers 10,000 square meters needed for 4 day for human beings, only needed now for 0.5 day for human beings, and efficiency is in the past 8 times.By improving the frequency of automation collection, the data volume of collection is in the past 2～3 times, and coverage significantly increases.Scheme provided by the present invention can be used in the application product based on indoor location service, provides automation signal collection to measure.
So far, described in detail according to a kind of indoor signal acquisition method and device based on MEMS sensor of the present invention.For fear of covering design of the present invention, details more known in the field are not described.Those skilled in the art, according to description above, can understand how to implement technical scheme disclosed herein completely.
In this instructions, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, same or analogous part cross-references between each embodiment.For the indoor signal harvester embodiment based on MEMS sensor, because it is substantially corresponding with embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
May realize in many ways indoor signal acquisition method and the device based on MEMS sensor of the present invention.For example, can realize indoor signal acquisition method and the device based on MEMS sensor of the present invention by any combination of software, hardware, firmware or software, hardware, firmware.The said sequence that is used for the step of described method is only in order to describe, and the step of method of the present invention is not limited to above specifically described order, unless otherwise specified.In addition, in certain embodiments, can be also the program being recorded in recording medium by the invention process, these programs comprise the machine readable instructions for realizing the method according to this invention.Thereby the present invention also covers the recording medium of storing the program for carrying out the method according to this invention.
Although specific embodiments more of the present invention are had been described in detail by example, it should be appreciated by those skilled in the art, above example is only in order to describe, instead of in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (10)
1. the indoor signal acquisition method based on MEMS sensor, is characterized in that, the true origin using indoor path starting point as micro-electromechanical system (MEMS) sensor, and described method comprises:
MEMS sensor is moved along described indoor path, in motion process, utilize described MEMS sensor to calculate the measurement coordinate position of collection point on described indoor path, and gather the index parameter of wireless signal in described collection point;
According to the measurement coordinate position of the physical coordinates position of described starting point and described collection point, calculate the physical coordinates position of described collection point;
Obtain the corresponding relation of the physical coordinates position of the described collection point wireless signal index parameter corresponding with described collection point.
2. method according to claim 1, is characterized in that, utilizes described MEMS sensor to calculate the measurement coordinate position of collection point on described indoor path, specifically comprises:
According to predetermined time interval, described MEMS sensor calculate motion to the measurement coordinate position of current location, described current location is the collection point on described indoor path.
3. method according to claim 1, is characterized in that, the physical coordinates position of described starting point is the longitude and latitude of the described starting point that obtains in advance; Or
Described method also comprises:
Detect gps signal in described starting point, obtain the longitude and latitude of described starting point by gps signal testing result, as the physical coordinates position of starting point.
4. method according to claim 3, is characterized in that, according to the measurement coordinate position of the physical coordinates position of described starting point and described collection point, calculates the physical coordinates position of described collection point, specifically comprises:
The position offset relationship of the measurement coordinate position based on described true origin and collection point, utilizes the longitude and latitude of described starting point, calculates the longitude and latitude that obtains collection point as the physical coordinates position of collection point.
5. according to the method described in claim 1 to 5 any one, it is characterized in that, described wireless signal comprises WiFi signal or cellular signal;
The index parameter of described WiFi signal comprises service set SSID, MAC Address, the WiFi signal intensity of WiFi focus;
The index parameter of described cellular signal comprises the cellular cell mark of cellular signal, the signal intensity of cellular signal.
6. the indoor signal harvester based on MEMS sensor, is characterized in that, described device comprises:
Micro-electromechanical system (MEMS) sensor, described MEMS sensor is using indoor path starting point as true origin, and described micro-electromechanical system (MEMS) sensor, for moving along described indoor path, in motion process, calculate the measurement coordinate position of collection point on described indoor path;
Signal gathering unit, for gathering the index parameter of wireless signal in described collection point;
Computing unit, for according to the measurement coordinate position of the physical coordinates position of described starting point and described collection point, calculates the physical coordinates position of described collection point;
Output unit, for obtaining and export the corresponding relation of the physical coordinates position of the described collection point wireless signal index parameter corresponding with described collection point.
7. device according to claim 6, is characterized in that, described device also comprises:
Timing unit, for according to predetermined time interval carry out timing;
Described MEMS sensor, specifically for according to interval of described predetermined time, calculate motion to the measurement coordinate position of current location, described current location is the collection point on described indoor path.
8. device according to claim 6, is characterized in that, the physical coordinates position of described starting point is the longitude and latitude of the described starting point that obtains in advance; Or
Described device also comprises:
GPS measuring unit, for detecting gps signal in described starting point, obtains the longitude and latitude of described starting point, as the physical coordinates position of starting point by gps signal testing result.
9. device according to claim 8, it is characterized in that, computing unit, specifically for the position offset relationship of the measurement coordinate position based on described true origin and collection point, utilize the longitude and latitude of described starting point, calculate the longitude and latitude that obtains collection point as the physical coordinates position of collection point.
10. according to the device described in claim 6 to 9 any one, it is characterized in that, described signal gathering unit, specifically comprises:
WiFi signal gathering unit, for gathering SSID, MAC Address, the WiFi signal intensity of WiFi focus;
Cellular signal collecting unit, for gathering the cellular cell mark of cellular signal, the signal intensity of cellular signal.
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