CN111366963A - Indoor position data acquisition method and data acquisition device - Google Patents

Abstract

The embodiments of the present invention disclose an indoor location data collection method and a data collection device, which are used to collect data through collection instructions, thereby realizing easy collection of indoor location information in general scenarios. The method of the embodiment of the present invention includes: monitoring the GPS signal decay information of the terminal device, and identifying whether the terminal device switches from the outdoor of the building to the indoor; ;According to the GPS coordinates of the critical point, obtain the area information of the building; According to the GPS coordinates of the critical point, use the inertial navigation system to calculate the indoor moving distance, and obtain the current virtual GPS coordinates after the indoor moving distance; Determine the floor of the current floor where the terminal device is located Obtain the acquisition instruction; according to the acquisition instruction, bind the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located, and save it as the fingerprint database of the target scene.

Description

Indoor location data collection method and data collection device

technical field

The invention relates to the field of education, in particular to an indoor location data collection method and a data collection device.

Background technique

The traditional indoor location data collection methods all require professional collection personnel to bring professional equipment or special collection tools, and collect according to the specified collection specifications; the collection cost is high (manpower and material costs); the traditional data collection method is cumbersome to operate. Before collection, it takes a lot of time to manually enter the text information of the point of interest (POI) of the location to be collected; the traditional indoor location fingerprint collection scheme without a picture can only obtain the Global Positioning System (Global Positioning System) of large scenes. GPS) fuzzy latitude and longitude, the actual coordinates of the precise location is difficult to accurately obtain.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an indoor location data collection method and a data collection device, which are used to collect data through collection instructions, realize easy collection of indoor location information in general scenarios, and solve the professional requirements of traditional data collection solutions The disadvantages are high, the collection steps are cumbersome, difficult to operate, the collection cost is high, and it is easy to make mistakes.

In view of this, a first aspect of the present invention provides an indoor location data collection method, which may include:

Monitor the GPS signal decay information of the terminal equipment, and identify whether the terminal equipment is switched from the outdoor to the indoor of the building;

If so, obtain the GPS coordinates and the initial air pressure value of the critical point when the terminal device switches from outdoor to indoor;

Obtain the area information of the building according to the GPS coordinates of the critical point;

According to the GPS coordinates of the critical point, use the inertial navigation system to calculate the indoor moving distance, and obtain the current virtual GPS coordinates after the indoor moving distance;

Obtain the current air pressure value of the terminal device;

According to the initial air pressure value and the current air pressure value, determine the floor number of the floor where the terminal device is currently located;

Get acquisition instructions;

According to the collection instruction, the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located are bound, and saved as a fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, according to the collection instruction, the area information of the building, the current virtual GPS coordinates, and the number of floors of the floor where the terminal device is currently located are bound, And save it as the fingerprint database of the target scene, which can include:

According to the acquisition instruction, enable at least one of Wi-Fi, Bluetooth, and sensors;

Obtain at least one of a WiFi signal, a Bluetooth signal, and a sensor signal correspondingly through at least one of the WiFi, Bluetooth, and sensor;

Bind at least one of the WiFi signal, the Bluetooth signal, the sensor signal, the area information of the building, the current virtual GPS coordinates, and the number of floors of the floor where the terminal device is currently located, and Save as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, the method may further include:

Filtering at least one of the WiFi signal, the Bluetooth signal, and the sensor signal to obtain at least one of the filtered WiFi signal, the filtered Bluetooth signal, and the filtered sensor signal;

Binding at least one of the WiFi signal, the Bluetooth signal, the sensor signal, the area information of the building, the current virtual GPS coordinates, and the number of floors of the floor where the terminal device is currently located , and save it as the fingerprint database of the target scene, which can include:

At least one of the filtered WiFi signal, the filtered Bluetooth signal, the filtered sensor signal, and the area information of the building, the current virtual GPS coordinates, the terminal device The floor number of the current floor is bound and saved as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, the obtaining the collection instruction may include:

Obtain acquisition instructions by means of voice input;

or,

Obtain acquisition instructions through text input;

or,

Receive the acquisition instruction sent by the electronic device.

Optionally, in some embodiments of the present invention, the method may further include:

obtain the current location data of the terminal device;

Match the current location data with the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located in the fingerprint database of the target scene. The terminal device is in the target scene.

A second aspect of the present invention provides a data acquisition device, which may include:

The processing module is used to monitor the GPS signal decay information of the terminal device, and identify whether the terminal device is switched from the outdoor of the building to the indoor; according to the GPS coordinates of the critical point, obtain the area information of the building; according to the critical point Calculate the indoor moving distance by using the inertial navigation system, and obtain the current virtual GPS coordinates after the indoor moving distance; According to the initial air pressure value and the current air pressure value, determine the floor number of the current floor of the terminal device; According to The collection instruction binds the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located, and saves it as a fingerprint database of the target scene;

an acquisition module, configured to acquire the GPS coordinates and the initial air pressure value of the critical point at which the terminal device switches from outdoor to indoor; acquire the current air pressure value of the terminal device; and acquire a collection instruction.

Optionally, in some embodiments of the present invention,

The processing module is specifically configured to enable at least one of Wi-Fi, Bluetooth, and sensors according to the acquisition instruction; and correspondingly acquire WiFi signals and Bluetooth signals through at least one of the WiFi, Bluetooth, and sensors. , at least one of sensor signals; at least one of the WiFi signal, the Bluetooth signal, the sensor signal, and the area information of the building, the current virtual GPS coordinates, the current location of the terminal device The number of floors is bound and saved as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention,

The processing module is further configured to filter at least one of the WiFi signal, the Bluetooth signal and the sensor signal to obtain at least one of the filtered WiFi signal, the filtered Bluetooth signal and the filtered sensor signal ; Be specifically used for at least one of the filtered WiFi signal, the filtered Bluetooth signal, the filtered sensor signal, and the area information of the building, the current virtual GPS coordinates, The floor number of the floor where the terminal device is currently located is bound and saved as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention,

The acquisition module is specifically configured to acquire the acquisition instruction by means of voice input;

or,

The acquisition module is specifically used for acquiring the acquisition instruction by means of text input;

or,

The acquisition module is specifically configured to receive the acquisition instruction sent by the electronic device.

Optionally, in some embodiments of the present invention,

The obtaining module is further configured to obtain the current location data of the terminal device;

The processing module is further configured to compare the current location data with the area information of the building in the fingerprint database of the target scene, the current virtual GPS coordinates, and the number of floors of the floor where the terminal device is currently located. If it matches, it is determined that the terminal device is in the target scene.

A third aspect of the present invention provides a data acquisition device, comprising:

a memory in which executable program code is stored;

a processor coupled to the memory;

The processor invokes the executable program code stored in the memory to execute the steps of the indoor location data collection method described in the first aspect and any optional implementation manner of the first aspect of the present invention.

Another aspect of the embodiments of the present invention provides a terminal device, which may include the data collection apparatus shown in the second aspect or the third aspect.

A fourth aspect of the embodiments of the present invention provides a readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the implementation of the first aspect of the present invention and any optional implementation manner of the first aspect is implemented. The steps of the indoor location data collection method described above.

A fifth aspect of the embodiments of the present invention discloses a computer program product, which, when the computer program product runs on a computer, causes the computer to execute any part of the indoor location data collection method disclosed in the first aspect of the embodiments of the present invention or all steps.

A sixth aspect of the embodiments of the present invention discloses an application publishing platform, and the application publishing platform is used for publishing a computer program product, wherein when the computer program product runs on a computer, the computer is made to execute the first embodiment of the present invention. Part or all of the steps of any one of the indoor location data collection methods disclosed in one aspect.

As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

In the embodiment of the present invention, the GPS signal decay information of the terminal device is monitored to identify whether the terminal device switches from the outdoor of the building to the indoor; if so, the GPS coordinates and initial air pressure value; according to the GPS coordinates of the critical point, obtain the area information of the building; according to the GPS coordinates of the critical point, use the inertial navigation system to calculate the indoor moving distance, and obtain the current virtual GPS coordinates after the indoor moving distance; Obtain the current air pressure value of the terminal device; determine the number of floors of the floor where the terminal device is currently located according to the initial air pressure value and the current air pressure value; obtain a collection instruction; The area information, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located are bound, and saved as the fingerprint database of the target scene. Through the method of collecting data by collecting instructions, it realizes the easy collection of indoor location information in general scenarios, and solves the shortcomings of traditional data collection solutions, such as high professional requirements, cumbersome collection steps, difficult operations, high collection costs, and easy errors.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments and the prior art. Obviously, the drawings in the following description are only some implementations of the present invention. For example, other drawings may also be obtained from these drawings.

FIG. 1 is a schematic diagram of an embodiment of an indoor location data collection method in an embodiment of the present invention;

2 is a schematic diagram of another embodiment of a method for collecting indoor position data in an embodiment of the present invention;

3 is a schematic diagram of an embodiment of a data acquisition device in an embodiment of the present invention;

4 is a schematic diagram of an embodiment of a data acquisition device in an embodiment of the present invention;

FIG. 5 is a schematic diagram of an embodiment of a terminal device in an embodiment of the present invention.

Detailed ways

Embodiments of the present invention provide an indoor location data collection method and a data collection device, which are used to collect data through collection instructions, realize easy collection of indoor location information in general scenarios, and solve the professional requirements of traditional data collection solutions The disadvantages are high, the collection steps are cumbersome, difficult to operate, the collection cost is high, and it is easy to make mistakes.

In order for those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention examples, but not all examples. Based on the embodiments of the present invention, all should belong to the protection scope of the present invention.

It can be understood that the execution subject to which the embodiments of the present invention are applicable may be a terminal device, and the terminal device may be a wearable device, and the wearable device may include a data collection device. Terminal devices may include general handheld electronic terminals, such as smart phones, portable terminals, terminals, personal digital assistants (Personal Digital Assistant, PDA), portable multimedia player (Personal Media Player, PMP) devices, notebook computers, notebook (Note Pad) , Wireless Broadband (Wireless Broadband, Wibro) terminal, tablet computer (personalcomputer, PC) and smart PC. The present application may also be applied to non-portable electronic devices, such as smart TVs that provide camera functionality.

A wearable device is a portable terminal device that can be directly worn on the user or integrated into the user's clothes or accessories. Wearable device is not only a hardware device, but also can realize powerful intelligent functions through software support, data interaction, and cloud interaction, such as: computing function, positioning function, alarm function, and can also be connected to mobile phones and various terminals. Wearable devices may include, but are not limited to, wrist-supported watches (such as watches, wrists, etc.), foot-supported shoes (such as shoes, socks, or other products worn on the legs), and head-supported products. Glass categories (such as glasses, helmets, headbands, etc.) and smart clothing, school bags, crutches, accessories and other non-mainstream product forms. In the following embodiments, the wearable device is a smart watch as an example for description.

The technical solution of the present invention is further described below by way of examples. As shown in FIG. 1 , it is a schematic diagram of an embodiment of the indoor location data collection method in the embodiment of the present invention, which may include:

101. Monitor the GPS signal decay information of the terminal device, and identify whether the terminal device switches from the outdoor of the building to the indoor.

When the user enters the room from the outdoor with the smart watch, the number of stars received by the GPS has a decay characteristic from more to less, from the presence to the absence. When this feature is switched, it can be judged that the smart watch entered from the outdoor. When entering the room, the bottom layer of the smart watch system can save the GPS coordinates of the critical point P0 before entering the room.

It should be understood that monitoring the GPS signal decay information of the smart watch may be monitoring track point information of the smart watch in real time. The track point information may include at least one of state change information and first position information of the track point. Of course, the track point information may also include other information, for example, the track point information may also include the state of the smart watch, which may be the state of the smart watch being indoors or outdoors, and the above state change message may be determined by the state of the smart watch . The first location information may be GPS latitude and longitude coordinate information, referred to as GPS coordinates for short.

In addition, the status change message is used to indicate whether there is an indoor-outdoor switch of the smartwatch, and the indoor-outdoor switch here may be that the smartwatch switches from indoors to outdoors, or the smartwatch switches from outdoor to indoors. In this way, in the subsequent steps, it can be determined according to the state change message that the smart watch has an indoor-outdoor switching state, and the smart watch can mark the state of the corresponding track point as the indoor-outdoor switching state, or record the state of the corresponding track point. If it is determined according to the state change message that the smart watch does not switch between indoors and outdoors, the smart watch can mark the state of the corresponding track point as an unswitched state. Optionally, since indoor-outdoor switching does not occur, it may not be necessary to record the state of the corresponding track point.

When the track point information includes the first position information of the track point, the smart watch determines whether the smart watch is indoors.

In some embodiments, the present application may determine whether the smartwatch is indoors based on the state change message.

In other embodiments, whether the smart watch is indoors can be determined by the nature of the weakening of the received GPS signal strength in indoor and outdoor environments, and the properties of the waveform characterizing the signal strength from the GPS.

For example, indoor and outdoor judgment can be performed according to whether a GPS signal is received. If a GPS signal is received, it can be determined that the smart watch is outdoors, and if no GPS signal is received, it can be determined that the smart watch is indoors.

In another example, indoor and outdoor judgments are made based on the reception sensitivity of signals from positioning satellites and the number of captured satellites and their changing states.

For another example, indoor/outdoor judgment is performed according to whether the average signal intensity of satellite signals from multiple positioning satellites is within a signal strength range corresponding to indoors and/or within a signal strength range corresponding to outdoor.

The above method of judging whether the smart watch is indoors or outdoors is only an exemplary description, and this application does not make any special limitation.

102. If yes, acquire the GPS coordinates and the initial air pressure value of the critical point at which the terminal device switches from outdoor to indoor.

If it is monitored that the smart watch is indoors, the GPS coordinates and the initial air pressure value of the critical point at which the smart watch switches from outdoor to indoor are acquired.

For example, the critical trajectory point before the smart watch enters the room can be used as the initial trajectory point in the room; for another example, the trajectory point with the highest positioning accuracy before the smart watch enters the room can be used as the initial trajectory point in the room, and so on. To sum up, in this step, it is necessary to determine whether the smart watch is indoors, so that the subsequent steps can be performed when the smart watch is indoors.

It is understandable that the smart watch can obtain the air pressure value at the critical point through the air pressure sensor as the initial air pressure value of the smart watch entering the room. The smart watch can also obtain the air pressure value entering the room through the air pressure sensor as the initial air pressure value.

It can be understood that the air pressure sensor can be a liquid (such as mercury) air pressure gauge and a solid (such as a metal empty box) air pressure gauge. The barometric pressure record is measured by a barometer or barometer installed in a barometric chamber with little change in temperature and well-lit, with timed barometric pressure recording and continuous barometric pressure recording.

103. Acquire area information of the building according to the GPS coordinates of the critical point.

The smart watch obtains the area information of the building according to the GPS coordinates of the critical point. Exemplarily, the GPS coordinates of the critical point, that is, the GPS latitude and longitude of the critical point, are input into the address resolution interface of the map provider to obtain area information (Area of Interest, AOI), such as Chang'an Central Primary School, Fortune Building, etc.

104. Calculate the indoor moving distance by using the inertial navigation system according to the GPS coordinates of the critical point, and obtain the current virtual GPS coordinates after the indoor moving distance.

The smart watch uses the inertial navigation system to calculate the indoor moving distance according to the GPS coordinates of the critical point, and obtains the current virtual GPS coordinates after the indoor moving distance. Exemplarily, the smart watch uses the inertial navigation system to infer the moving distance after entering the door based on the GPS coordinates of P0 to obtain virtual GPS coordinates (Virtual Global Positioning System, V-GPS).

The following is a brief description of the technical terms involved in the embodiments of the present invention:

Inertial Navigation System (INS, hereinafter referred to as Inertial Navigation) is an autonomous navigation system that does not rely on external information and does not radiate energy to the outside, including inertial measurement units. Its working environment includes not only the air, the ground, but also underwater. The basic working principle of inertial navigation is based on Newton's laws of mechanics. By measuring the acceleration of the carrier in the inertial reference system, integrating it with time, and transforming it into the navigation coordinate system, the value in the navigation coordinate system can be obtained. Information such as speed, yaw angle and position.

Odometer: Refers to a device (such as mounted on a smart watch) that measures travel, such as a wheel pulse counter.

It should be noted that the inertial navigation system and the odometer are usually abbreviated as the inertial navigation odometer. That is, the smart watch uses the inertial navigation system and the odometer to calculate the indoor moving distance according to the GPS coordinates of the critical point, and obtains the current virtual GPS coordinates after the indoor moving distance.

105. Acquire the current air pressure value of the terminal device.

The smart watch can obtain the current air pressure value of the smart watch through the air pressure sensor. For details, please refer to the content described in the foregoing step 102, which will not be repeated here.

106. Determine the floor number of the floor where the terminal device is currently located according to the initial air pressure value and the current air pressure value.

The smart watch determines the number of floors of the floor where the smart watch is currently located according to the initial air pressure value and the current air pressure value.

Further, the smart watch can also obtain the air pressure difference value of the adjacent floors from the fingerprint database of the height and air pressure difference between the adjacent floors of the building, and the smart watch can obtain the air pressure difference value of the adjacent floors according to the initial air pressure value, the current air pressure value and the The air pressure difference between adjacent floors determines the floor number of the user's current floor.

Further, the smart watch determines the number of floors of the floor where the user is currently located according to the initial air pressure value, the current air pressure value and the air pressure difference between the adjacent floors, which may include: the smart watch according to the air pressure between the adjacent floors. The difference value determines the height value of a single floor in the target indoor positioning scene; the smart watch determines the relative height value between the user's current floor and the reference plane according to the initial air pressure value and the current air pressure value; The watch divides the relative height value and the single-floor height value, and determines the floor number of the floor where the user is currently located according to the division result.

In the embodiment of the present invention, based on the content of the above embodiment, the smart watch may be provided with an air pressure sensor for collecting air pressure data, so the above floor location request may include the current air pressure value of the floor where the user is currently located. Preferably, several times of air pressure data can also be collected by collecting the current location of the user through the air pressure sensor, and the average value of the several times of air pressure data can be sent to the smart watch as the current air pressure value of the floor where the user is currently located.

In addition, in this solution, the reference plane of the positioning scene in the target indoor positioning scene may be the reference layer of the building included in the target indoor positioning scene, such as the first floor, then the above-mentioned initial air pressure value may be the user entering the building. The air pressure value measured at the time point within the

In the embodiment of the present invention, the smart watch can calculate the height value of a single floor in the indoor positioning scene according to the air pressure difference between the adjacent floors and the preset standard air pressure altitude formula. And the absolute value of the difference between the current air pressure values and the preset standard air pressure altitude formula can calculate the relative height value between the user's current floor and the reference plane. Among them, the smart watch can establish a BP neural network according to the air pressure data and temperature data collected from different measurement locations (floors) in the target indoor positioning scene, and optimize the BP neural network according to the principle of genetic algorithm and complete its training and learning process. Obtain the standard barometric altitude formula above.

In the embodiment of the present invention, the smart watch can determine the measurement position of the initial air pressure value as the first measurement point, and the first measurement point is located on the above-mentioned reference plane; similarly, the smart watch can also determine the measurement position of the above-mentioned current air pressure value. is the second measurement point, and the second measurement point is located on the floor plane of the floor where the user is currently located. Therefore, the above-mentioned relative height value refers to the vertical height between the first measurement point and the second measurement point.

Exemplarily, in the step of judging floors and AOIs, a link of building type preset may be added before collection, and then floors are predicted according to the design standard of floor height of each building type, which can improve the accuracy of floor calculation.

As another optional implementation, after the smart watch determines the current floor of the user according to the initial air pressure value, the current air pressure value and the air pressure difference between adjacent floors, it can also determine whether the current moment belongs to the preset control time period. , if yes, determine the list of shops corresponding to the current floor of the user according to the preset dynamic floor plan; determine the target WiFi hotspot with the strongest signal according to the list of WiFi hotspots detected at the user's current orientation position; use the name of the target WiFi hotspot Match with the name of the store included in the store list, and determine the successfully matched store as the target store; determine whether the target store belongs to the preset store set; if the target store belongs to the preset store set, send a message to the monitoring terminal A prompt message to remind the user to be in a non-learning area during the controlled time period.

Optionally, the above-mentioned control time period may be an extra-curricular learning time period preset by parents. During this control and control time period, parents want students and users to perform extra-curricular activities related to learning, such as reading books in the library, going to bookstores to buy books, or going to extra-curricular teaching. Tutoring institutions for learning, etc. Therefore, the smart watch can determine the store list corresponding to the current floor of the user by looking up the floor plan, and determine the target store that is closest to the user from the store list according to the strength of the WiFi hotspot signal, and the target store is the user. The current store; further, determine whether the target store belongs to the preset store set, if not, it means that the target store is not a store related to learning, so a prompt message can be sent to the parent's monitoring terminal to remind the user to In the non-learning area during the control time period; wherein, the above-mentioned dynamic floor plan may include the name of the shop on each floor in the target indoor positioning scene. It can be seen that in this embodiment of the present invention, after locating the floor where the user is located, the specific area of the user on the floor can be located, so that parents can accurately grasp the specific location coordinates of the student user; in addition, by determining the functional category of the specific area where the user is located, Determine whether the student user engages in learning-related activities within the preset control time period, realizes the supervision and control of the student user's learning, and improves the efficiency of learning management and control.

It should be noted that the sequence of steps 103, 104, and 105 and 106 is not limited.

107. Obtain a collection instruction.

The smart watch obtains the collection instruction, which can be obtained by voice input; it can also be obtained by text input; it can also receive the collection instruction sent by the electronic device; it can also be sent by other electronic devices. The trigger acquisition instruction is generated, and the acquisition instruction is generated according to the trigger acquisition instruction.

For example, after a user who uses a smart watch arrives in the classroom, he can input the smart watch by voice, or by text, or receive the acquisition instructions sent by other electronic devices, or, can also be sent by other electronic devices. The trigger acquisition instruction, so as to acquire the instruction according to the trigger.

Optionally, the smart watch obtains the collection instruction, or the user first presses the "start" button on the smart watch, and then the smart watch generates the collection instruction by means of voice input.

It can be understood that the above-mentioned current virtual GPS coordinates and the number of floors of the current floor are acquired in real time. When the user inputs by voice, he can describe his location in Mandarin, that is, the collection instruction includes the location information of the user. For example, "I have reached the classroom, third grade class two". Optionally, the collection instruction may further include the floor number of the floor where the terminal device is currently located.

Exemplarily, in the voice input link, the location points to be collected can be set in advance through the parent's device APP, and the information can be synchronized to the smart watch side (such as the watch side), and the child can input the voice input when the child reaches the specified location point, forming a double check to improve fault tolerance.

108. According to the collection instruction, bind the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located, and save it as a fingerprint database of the target scene.

Exemplarily, the bottom layer of the smart watch system receives the voice signal, performs voice recognition and NLP analysis, then performs word segmentation and feature extraction, and then performs tagging processing on the parsed text. According to the collection instruction, the smart watch binds the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the smart watch is currently located, and saves it as a fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, the terminal device acquires the current location data of the terminal device; the terminal device associates the current location data with the area of the building in the fingerprint database of the target scene. The information, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located are matched, and if there is a match, it is determined that the terminal device is in the target scene.

Wherein, it can be understood that the matching may be that the current location data includes the target area information, if the target area information matches the area information of the building, and/or, the current location data may include the target virtual GPS coordinates, if the target virtual GPS coordinates The GPS coordinates match the current virtual GPS coordinates, and/or, the current location data may include the target floor number of the floor where the terminal device is currently located, if the target floor number of the floor where the terminal device is currently located matches the floor number of the current floor where the terminal device is located.

In the embodiment of the present invention, by means of collecting data based on voice recognition annotation, easy collection of indoor location information of general scenes is realized. It solves the shortcomings of the traditional data collection scheme, which requires high professionalism, cumbersome collection steps, difficult to operate, high collection cost and error-prone.

Compared with the traditional data collection scheme, the present invention can greatly reduce the professional degree of collection, reduce the collection cost, and reduce the operation steps of collection personnel by automatically marking the location area information through collection instructions, fusing sensor data collection and algorithm prediction of motion state and position coordinates. The probability of misoperation by the collection personnel is reduced, so that the data collection is more convenient and easy to use, and the quality of the collected data will also be improved to a certain extent.

Further, the embodiment of the present invention makes an innovative modification to the traditional fingerprint collection technology, and uses the speech recognition technology to make it possible to solve the technical problem that the traditional data collection tool requires the collector to spend a lot of time and energy to manually input information; The combination of speech recognition technology, natural language processing technology and multi-source sensor fusion technology is applied to the field of indoor positioning data collection (usually uncombinable or difficult to think of); the technical means to solve the problem are ingenious, scientific and reasonable, and the fusion algorithm is used to predict and label instead of Aiming at the shortcomings of using voice recognition alone to be prone to errors, a targeted solution is proposed that combines GPS indoor and outdoor switching signal decay, inertial navigation, motion state detection, floor detection and other technologies.

As shown in FIG. 2, it is a schematic diagram of another embodiment of the indoor location data collection method in the embodiment of the present invention, which may include:

201. Monitor the GPS signal decay information of the terminal device, and identify whether the terminal device switches from the outdoor of the building to the indoor.

202. If yes, acquire the GPS coordinates and the initial air pressure value of the critical point at which the terminal device switches from outdoor to indoor.

203. Acquire area information of the building according to the GPS coordinates of the critical point.

204. Calculate the indoor moving distance by using the inertial navigation system according to the GPS coordinates of the critical point, and obtain the current virtual GPS coordinates after the indoor moving distance.

205. Acquire the current air pressure value of the terminal device.

206. Determine the floor number of the floor where the terminal device is currently located according to the initial air pressure value and the current air pressure value.

It should be noted that the sequence of steps 203, 204, and 205 and 206 is not limited.

207. Obtain a collection instruction.

It should be noted that steps 201 to 207 are similar to steps 101 to 107 in the embodiment shown in FIG. 1 , and details are not repeated here.

208. Enable at least one of Wi-Fi, Bluetooth, and sensors according to the collection instruction.

The smart watch can turn on at least one of Wi-Fi, Bluetooth, and sensors according to the collection instruction. It can be understood that the sensor (Sensor) may include, but is not limited to, geomagnetism, barometer, gyroscope, quaternion, and the like.

209. Correspondingly acquire at least one of a WiFi signal, a Bluetooth signal, and a sensor signal through at least one of WiFi, Bluetooth, and a sensor.

The smart watch can obtain WiFi signals through the WiFi, obtain Bluetooth signals through Bluetooth, and obtain sensor signals through sensors. That is, the smart watch can acquire at least one of WiFi signal, Bluetooth signal and sensor signal correspondingly through at least one of WiFi, Bluetooth and sensor.

210. Bind at least one of the WiFi signal, the Bluetooth signal, and the sensor signal, the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located , and save it as the fingerprint database of the target scene.

The smart watch filters at least one of the WiFi signal, the Bluetooth signal, and the sensor signal to obtain at least one of the filtered WiFi signal, the filtered Bluetooth signal, and the filtered sensor signal.

The smart watch binds at least one of the WiFi signal, the Bluetooth signal, the sensor signal, the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located. , and save it as the fingerprint database of the target scene, which may include: the smart watch records at least one of the filtered WiFi signal, the filtered Bluetooth signal, the filtered sensor signal, and the building The area information, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located are bound, and saved as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, the terminal device obtains the current location data of the terminal device; the terminal device combines the current location data with the fingerprint database of the target scene, and the smart watch filters the filter. at least one of the obtained WiFi signal, the filtered Bluetooth signal, and the filtered sensor signal, the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located Matching is performed, and if there is a match, it is determined that the terminal device is in the target scene.

It can be understood that the matching can be that the current location data includes the target WiFi signal, if the target WiFi signal matches the WiFi signal in the fingerprint database of the target scene, and/or the current location data includes the target Bluetooth signal, if the target The bluetooth signal matches the bluetooth signal in the fingerprint database of the target scene, the current location data includes the target sensor signal, if the target sensor signal matches the sensor signal in the fingerprint database of the target scene, and/or, the current location data includes the target area information, If the target area information matches the area information of the building, and/or, the current location data may include the target virtual GPS coordinates, and if the target virtual GPS coordinates match the current virtual GPS coordinates, and/or, the current location data may include the terminal The target floor number of the floor where the device is currently located, if the target floor number of the current floor where the terminal device is located matches the floor number of the current floor where the terminal device is located.

Optionally, if the fingerprint database of the target scene includes the filtered WiFi signal, the filtered Bluetooth signal, and the filtered sensor signal, then the matching can be: the current location data includes the target WiFi signal, if the target WiFi signal and the target The filtered WiFi signal in the fingerprint database of the scene matches, and/or the current location data includes the target Bluetooth signal, if the target Bluetooth signal matches the filtered Bluetooth signal in the fingerprint database of the target scene, the current location data includes the target sensor signal, If the target sensor signal matches the filtered sensor signal in the target scene's fingerprint database.

The terminal device can solve the complex operation of POI input before acquisition through voice recognition, analysis and annotation; the terminal device can also comprehensively utilize multi-source sensors, wireless fidelity (WiFi), Bluetooth, and satellite signals through the bottom layer of the system. The location of the collection location and the characteristics of the surrounding signals can be accurately captured; the terminal device can also identify the air pressure changes up and down the stairs through the barometer, calculate the altitude, and combine with the floor calculation algorithm to accurately obtain the height and floor information of the collection location.

In the embodiment of the present invention, no need for professional personnel to collect, just wear a watch to walk normally; the cost of collection is low; there is no need for a lot of cumbersome pre-collection preparation work, and all verification work is completed at the bottom of the system using multi-source data fusion processing, The POI information of the location point can be easily completed through the method of Mandarin voice notification; the labeling of the location point is completed at the bottom of the system by using PDR+motion status+V-GPS (Virtual GPS, virtual GPS) method, without manual operation by the collection personnel, reducing The probability of misoperation leading to the wrong position.

As shown in FIG. 3, it is a schematic diagram of an embodiment of a data acquisition apparatus in an embodiment of the present invention, which may include:

The processing module 301 is used to monitor the GPS signal decay information of the terminal device, and identify whether the terminal device is switched from the outdoor of the building to the indoor; obtain the area information of the building according to the GPS coordinates of the critical point; GPS coordinates of the point, use the inertial navigation system to calculate the indoor moving distance, and obtain the current virtual GPS coordinates after the indoor moving distance; According to the initial air pressure value and the current air pressure value, determine the floor number of the floor where the terminal device is currently located; According to the collection instruction, the area information of the building, the current virtual GPS coordinates, and the number of floors of the floor where the terminal device is currently located are bound, and saved as the fingerprint database of the target scene;

The obtaining module 302 is configured to obtain the GPS coordinates and the initial air pressure value of the critical point when the terminal device switches from outdoor to indoor; obtain the current air pressure value of the terminal device; and obtain a collection instruction.

Optionally, in some embodiments of the present invention,

The processing module 301 is specifically configured to enable at least one of Wi-Fi, Bluetooth, and sensors according to the acquisition instruction; and correspondingly acquire WiFi signals, Bluetooth signals, and sensors through at least one of the WiFi, Bluetooth, and sensors. At least one of the sensor signals; combine at least one of the WiFi signal, the Bluetooth signal, the sensor signal, and the area information of the building, the current virtual GPS coordinates, and the current floor of the terminal device The number of layers is bound and saved as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention,

The processing module 301 is further configured to filter at least one of the WiFi signal, the Bluetooth signal, and the sensor signal to obtain at least one of the filtered WiFi signal, the filtered Bluetooth signal, and the filtered sensor signal; Specifically, at least one of the filtered WiFi signal, the filtered Bluetooth signal, and the filtered sensor signal, as well as the area information of the building, the current virtual GPS coordinates, the The number of floors of the floor where the terminal device is currently located is bound and saved as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention,

The acquiring module 302 is specifically configured to acquire the acquisition instruction by means of voice input;

or,

The acquiring module 302 is specifically configured to acquire the acquisition instruction by means of text input;

or,

The acquiring module 302 is specifically configured to receive the acquisition instruction sent by the electronic device.

Optionally, in some embodiments of the present invention,

The obtaining module 302 is further configured to obtain the current location data of the terminal device;

The processing module 301 is further configured to match the current location data with the area information of the building in the fingerprint database of the target scene, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located , and if it matches, it is determined that the terminal device is in the target scene.

As shown in FIG. 4, it is a schematic diagram of an embodiment of a data acquisition apparatus in an embodiment of the present invention, which may include:

a memory 401 storing executable program code;

a processor 402 coupled to the memory 401;

The processor 402 calls the executable program code stored in the memory 401 to perform the following steps:

Monitor the GPS signal decay information of the terminal equipment, and identify whether the terminal equipment is switched from the outdoor to the indoor of the building;

If so, obtain the GPS coordinates and the initial air pressure value of the critical point when the terminal device switches from outdoor to indoor;

Obtain the area information of the building according to the GPS coordinates of the critical point;

According to the GPS coordinates of the critical point, use the inertial navigation system to calculate the indoor moving distance, and obtain the current virtual GPS coordinates after the indoor moving distance;

Obtain the current air pressure value of the terminal device;

According to the initial air pressure value and the current air pressure value, determine the floor number of the floor where the terminal device is currently located;

Get acquisition instructions;

According to the collection instruction, the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located are bound, and saved as a fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, the processor 402 calls the executable program code stored in the memory 401 to perform the following steps:

According to the acquisition instruction, enable at least one of Wi-Fi, Bluetooth, and sensors;

Obtain at least one of a WiFi signal, a Bluetooth signal, and a sensor signal correspondingly through at least one of the WiFi, Bluetooth, and sensor;

Bind at least one of the WiFi signal, the Bluetooth signal, the sensor signal, the area information of the building, the current virtual GPS coordinates, and the number of floors of the floor where the terminal device is currently located, and Save as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, the processor 402 calls the executable program code stored in the memory 401 to perform the following steps:

Filtering at least one of the WiFi signal, the Bluetooth signal, and the sensor signal to obtain at least one of the filtered WiFi signal, the filtered Bluetooth signal, and the filtered sensor signal;

At least one of the filtered WiFi signal, the filtered Bluetooth signal, the filtered sensor signal, and the area information of the building, the current virtual GPS coordinates, the terminal device The floor number of the current floor is bound and saved as the fingerprint database of the target scene.

Optionally, in some embodiments of the present invention, the processor 402 calls the executable program code stored in the memory 401 to perform the following steps:

Obtain the acquisition instruction by means of voice input; or,

Obtain the collection instruction through text input; or,

Receive the acquisition instruction sent by the electronic device.

Optionally, in some embodiments of the present invention, the processor 402 calls the executable program code stored in the memory 401 to perform the following steps:

obtain the current location data of the terminal device;

Match the current location data with the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located in the fingerprint database of the target scene. The terminal device is in the target scene.

As shown in FIG. 5 , it is a schematic diagram of an embodiment of a terminal device in an embodiment of the present invention, which may include a data collection apparatus as shown in FIG. 3 or FIG. 4 .

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center The transmission is carried out to another website site, computer, server or data center by wire (eg coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (eg infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be stored by a computer, or a data storage device such as a server, data center, etc., which includes one or more available media integrated. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD (Digital Video Disc)), or semiconductor media (eg, Solid State Disk (SSD)), and the like.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above may refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided by the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An indoor position data acquisition method is characterized by comprising the following steps:

monitoring GPS signal decay information of the terminal equipment, and identifying whether the terminal equipment is switched from outdoor to indoor of the building;

if so, acquiring a GPS coordinate and an initial air pressure value of a critical point of the terminal equipment switched from outdoor to indoor;

acquiring regional information of the building according to the GPS coordinates of the critical points;

calculating the indoor moving distance by using an inertial navigation system according to the GPS coordinate of the critical point to obtain the current virtual GPS coordinate after the indoor moving distance;

acquiring a current air pressure value of the terminal equipment;

determining the floor number of the floor where the terminal equipment is located currently according to the initial air pressure value and the current air pressure value;

acquiring an acquisition instruction;

and binding the area information of the building, the current virtual GPS coordinate and the floor number of the current floor of the terminal equipment according to the acquisition instruction, and storing the bound information as a fingerprint database of a target scene.

2. The method according to claim 1, wherein the step of binding the area information of the building, the current virtual GPS coordinates, and the floor number of the floor where the terminal device is currently located according to the acquisition instruction and storing the binding as the fingerprint database of the target scene comprises:

according to the acquisition instruction, at least one of wireless fidelity WiFi, Bluetooth and a sensor is started;

correspondingly acquiring at least one of a WiFi signal, a Bluetooth signal and a sensor signal through at least one of the WiFi, the Bluetooth and the sensor;

and binding at least one of the WiFi signal, the Bluetooth signal and the sensor signal, the area information of the building, the current virtual GPS coordinate and the floor number of the floor where the terminal equipment is located currently, and storing the bound information as a fingerprint database of a target scene.

3. The method of claim 2, further comprising:

filtering at least one of the WiFi signal, the Bluetooth signal and the sensor signal to obtain at least one of a filtered WiFi signal, a filtered Bluetooth signal and a filtered sensor signal;

the step of binding at least one of the WiFi signal, the bluetooth signal, and the sensor signal, as well as the area information of the building, the current virtual GPS coordinate, and the number of floors on which the terminal device is currently located, and storing the bound number as a fingerprint database of a target scene includes:

and binding at least one of the filtered WiFi signals, the filtered Bluetooth signals and the filtered sensor signals, the regional information of the building, the current virtual GPS coordinates and the floor number of the current floor of the terminal equipment, and storing the bound information as a fingerprint database of a target scene.

4. The method of claim 1 or 2, wherein the obtaining acquisition instructions comprises:

acquiring an acquisition instruction in a voice input mode;

or,

acquiring an acquisition instruction in a text input mode;

or,

and receiving an acquisition instruction sent by the electronic equipment.

5. The method according to claim 1 or 2, characterized in that the method further comprises:

acquiring current position data of the terminal equipment;

and matching the current position data with the area information of the building, the current virtual GPS coordinates and the floor number of the floor where the terminal equipment is located currently in the fingerprint database of the target scene, and if the current position data is matched with the area information of the building, determining that the terminal equipment is located in the target scene.

6. A data acquisition device, comprising:

the processing module is used for monitoring the GPS signal decay information of the terminal equipment and identifying whether the terminal equipment is switched from the outdoor to the indoor of the building; acquiring regional information of the building according to the GPS coordinates of the critical points; calculating the indoor moving distance by using an inertial navigation system according to the GPS coordinate of the critical point to obtain the current virtual GPS coordinate after the indoor moving distance; determining the floor number of the floor where the terminal equipment is located currently according to the initial air pressure value and the current air pressure value; according to the acquisition instruction, binding the area information of the building, the current virtual GPS coordinate and the floor number of the current floor of the terminal equipment, and storing the binding information as a fingerprint database of a target scene;

the acquisition module is used for acquiring the GPS coordinates and the initial air pressure value of the critical point of the terminal equipment switched from the outdoor to the indoor if the terminal equipment is switched from the outdoor to the indoor; acquiring a current air pressure value of the terminal equipment; and acquiring a collection instruction.

7. The data acquisition device of claim 6,

the processing module is specifically used for starting at least one of wireless fidelity WiFi, Bluetooth and a sensor according to the acquisition instruction; correspondingly acquiring at least one of a WiFi signal, a Bluetooth signal and a sensor signal through at least one of the WiFi, the Bluetooth and the sensor; and binding at least one of the WiFi signal, the Bluetooth signal and the sensor signal, the area information of the building, the current virtual GPS coordinate and the floor number of the floor where the terminal equipment is located currently, and storing the bound information as a fingerprint database of a target scene.

8. The data acquisition device of claim 6 or 7,

the processing module is further configured to filter at least one of the WiFi signal, the bluetooth signal, and the sensor signal to obtain at least one of a filtered WiFi signal, a filtered bluetooth signal, and a filtered sensor signal; the terminal device is specifically configured to bind at least one of the filtered WiFi signal, the filtered bluetooth signal, and the filtered sensor signal, as well as the area information of the building, the current virtual GPS coordinate, and the number of floors on which the terminal device is currently located, and store the bound information as a fingerprint database of a target scene.

9. The data acquisition device of claim 6 or 7,

the acquisition module is specifically used for acquiring an acquisition instruction in a voice input mode;

or,

the acquisition module is specifically used for acquiring an acquisition instruction in a text input mode;

or,

the acquisition module is specifically used for receiving an acquisition instruction sent by the electronic equipment.

10. The data acquisition device of claim 6 or 7,

the acquisition module is further used for acquiring current position data of the terminal equipment;

the processing module is further configured to match the current location data with the area information of the building, the current virtual GPS coordinate, and the number of floors on which the terminal device is currently located in the fingerprint database of the target scene, and if the current location data matches the area information of the building, determine that the terminal device is located in the target scene.

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