CN113260046A - BLE Bluetooth AOA positioning method, system and medium - Google Patents
BLE Bluetooth AOA positioning method, system and medium Download PDFInfo
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Abstract
The application discloses a BLE Bluetooth AOA positioning method, a system and a medium, belonging to the technical field of positioning. The method comprises the following steps: adding positioning data in Bluetooth data transmitted by equipment to be positioned, wherein the positioning data identifies the position of the equipment to be positioned; the positioning base station receives the Bluetooth data and identifies the positioning data; if the positioning data exists in the Bluetooth data, the positioning base station captures the positioning data and calculates the position of the corresponding equipment to be positioned according to the positioning data. According to the positioning method and device, the positioning data are added into the common Bluetooth signal transmitted by the equipment to be positioned, the positioning base station after optimization is used for acquiring and processing the positioning data, the position of the equipment to be positioned is obtained, the positioning of the equipment to be positioned is realized, the equipment cost and the equipment updating cost of Bluetooth AOA positioning application are reduced, and the application range of the Bluetooth AOA positioning is widened.
Description
Technical Field
The application relates to the technical field of positioning, in particular to a BLE Bluetooth AOA positioning method, a system and a medium.
Background
With the progress of society and the development of technology, positioning technology gradually permeates into the aspects of social life, and becomes an indispensable important application in daily life of people, such as personnel search, location search, traffic management, vehicle navigation and route planning. In particular, in institutions such as nursing homes, people who need help are usually located in time in order to locate the people, such as mobile phones, alarm cards, etc., that they carry.
Among bluetooth positioning methods, bluetooth aoa (angle of array) positioning is widely used. In the Bluetooth AOA positioning process, the equipment to be positioned transmits a special modulation signal, the positioning base station receives the modulation signal through the specially-arranged antenna array, and then the angle of the equipment to be positioned relative to the positioning base station is identified, so that the position of the equipment to be positioned relative to the positioning base station is further determined. The equipment to be positioned needs to have the function of supporting the transmission of the specific modulation signal in a Bluetooth baseband, and the positioning base station needs to have the functions of switching and scanning the antenna array according to the received Bluetooth data. Therefore, the current bluetooth AOA positioning method is only applicable to devices to be positioned and positioning base stations satisfying the above conditions, for example, bluetooth devices having bluetooth protocol version 5.1. However, for the bluetooth device of the old version bluetooth protocol, which is not the 5.1 version protocol, the corresponding AOA positioning cannot be performed. Meanwhile, the existing Bluetooth AOA positioning method has higher equipment cost requirement, and updates the Bluetooth equipment of the non-Bluetooth 5.1 version Bluetooth protocol, so that the updating cost for AOA positioning is higher.
Disclosure of Invention
The method, the system and the medium for positioning the BLE Bluetooth AOA are provided by the invention, aiming at the problems that in the prior art, in the Bluetooth AOA positioning process, the requirement on positioning equipment is high, the updating cost of subsequent positioning equipment is high, the subsequent positioning equipment cannot be widely used, and Bluetooth equipment of an old version of Bluetooth protocol cannot perform Bluetooth AOA positioning.
In one technical solution of the present application, a BLE bluetooth AOA positioning method is provided, including: adding positioning data in Bluetooth data transmitted by equipment to be positioned, wherein the positioning data identifies the position of the equipment to be positioned; the positioning base station receives the Bluetooth data and identifies the positioning data; if the positioning data exists in the Bluetooth data, the positioning base station captures the positioning data and calculates the position of the corresponding equipment to be positioned according to the positioning data.
In another technical solution of the present application, a BLE bluetooth AOA positioning system is provided, which includes a device to be positioned, configured to transmit bluetooth data added with positioning data, where the positioning data identifies a position of the device to be positioned; and the positioning base station is used for receiving the Bluetooth data and identifying the positioning data, and if the positioning data exists in the Bluetooth data, the positioning data is grabbed, and the position of the corresponding equipment to be positioned is calculated according to the positioning data.
In another aspect of the present application, a computer storage medium is provided, which stores a computer program, where the computer program is operated to execute the BLE bluetooth AOA positioning method in aspect one.
The beneficial effect of this application is: according to the positioning method and device, the positioning data are added into the common Bluetooth signal transmitted by the equipment to be positioned, the positioning base station after optimization is used for acquiring and processing the positioning data, the position of the equipment to be positioned is obtained, the positioning of the equipment to be positioned is realized, the equipment cost and the equipment updating cost of Bluetooth AOA positioning application are reduced, and the application range of the Bluetooth AOA positioning is widened.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a diagram illustrating a trailer structure of an AOA packet format;
figure 2 shows a schematic flow diagram of the BLE bluetooth AOA positioning method of the present application;
figure 3 shows an example of adding positioning data to bluetooth data in the BLE bluetooth AOA positioning method of the present application;
figure 4 shows an example of custom location data identification in a ble.adv bluetooth packet;
figure 5 shows an example of positioning base station data processing in the BLE bluetooth AOA positioning method of the present application;
figure 6 shows a schematic structural diagram of the BLE bluetooth AOA positioning system of the present application.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of steps or elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
In the prior art, when bluetooth AOA is used for positioning, a device to be positioned first transmits a special modulation signal, and a positioning base station receives the modulation signal through an antenna array arranged specially, so as to identify an angle of the device to be positioned relative to the positioning base station, thereby further determining a position of the device to be positioned relative to the positioning base station. The equipment to be positioned needs to have the function of supporting the transmission of the specific modulation signal in a Bluetooth baseband, and the positioning base station needs to have the functions of switching and scanning the antenna array according to the received Bluetooth data. Therefore, the current bluetooth AOA positioning method is only applicable to devices to be positioned and positioning base stations satisfying the above conditions, for example, bluetooth devices having bluetooth protocol version 5.1. However, for the bluetooth device of the old version bluetooth protocol, which is not the 5.1 version protocol, the corresponding AOA positioning cannot be performed. Meanwhile, the existing Bluetooth AOA positioning method has higher equipment cost requirement, and updates the Bluetooth equipment of the non-Bluetooth 5.1 version Bluetooth protocol, so that the updating cost for AOA positioning is higher. Fig. 1 shows an AOA packet format schematic in the existing bluetooth AOA positioning specification.
As shown in fig. 1, the tail of the AOA packet format has a Constant Tone Extension data segment, and the CTE data portion is a special modulation signal required for bluetooth AOA positioning, where the special modulation signal may be a modulation signal with baseband data Constant 1. Currently, only some bluetooth devices, for example, bluetooth devices with bluetooth protocol version 5.1, can transmit the special modulated signal later, and the positioning base station receives the data packet and then performs the subsequent bluetooth AOA positioning process. The bluetooth AOA positioning logic can be summarized as that a data packet with CTE data at the tail is transmitted at the end of the device to be positioned, and the positioning base station calculates the position according to the CTE data, that is, the positioning base station end only needs to know the position of the CTE data in advance to perform positioning, that is, the position of the CTE in the data packet does not affect the actual positioning effect.
According to the positioning method and device, the positioning data are added into the common Bluetooth signal transmitted by the equipment to be positioned, the positioning base station after optimization is used for acquiring and processing the positioning data, the position of the equipment to be positioned is obtained, the positioning of the equipment to be positioned is realized, the equipment cost and the equipment updating cost of Bluetooth AOA positioning application are reduced, and the application range of the Bluetooth AOA positioning is widened. The application provides a BLE Bluetooth AOA positioning method, a system and a medium.
The application provides a BLE Bluetooth AOA positioning method, a system and a medium, wherein positioning data is added in Bluetooth data transmitted by equipment to be positioned, and the positioning data identifies the position of the equipment to be positioned. When adding the locating data into the bluetooth data of ordinary bluetooth equipment transmission, add the locating data into the protocol data unit of bluetooth data to use the locating data sign of predetermined form, the position and the length of sign locating data mark the locating data. For example, the device to be located is a bluetooth device having a bluetooth protocol version 4.0. When marking the positioning data such as CTE data, the identification mark can be customized according to the requirement of a user, and the positioning data can be identified. The positioning base station receives the Bluetooth data and identifies the positioning data; if the positioning data exists in the Bluetooth data, the positioning base station captures the positioning data and calculates the position of the corresponding equipment to be positioned according to the positioning data. Because in adding the bluetooth data of ordinary bluetooth equipment transmission with the locating data, in order to guarantee that the location basic station obtains corresponding locating data smoothly, need optimize the location basic station in advance, add data identification and data capture function in the location basic station for the location basic station discerns the locating data in the bluetooth data, and snatchs the locating data. If the positioning data exists in the Bluetooth data, the positioning base station captures the positioning data and calculates the position of the corresponding equipment to be positioned according to the positioning data. If the positioning data identification is detected to exist in the Bluetooth data, the positioning data identification indicates that the positioning data exists in the Bluetooth data, and the positioning base station performs positioning data antenna switching; capturing positioning data through a positioning data antenna and outputting the positioning data to a computing unit; the calculation unit calculates the positioning data through a preset positioning algorithm to obtain the position of the corresponding equipment to be positioned.
The BLE Bluetooth AOA positioning method is suitable for old equipment which does not support the transmission of specific positioning data or Bluetooth equipment with an old version Bluetooth protocol, for example, Bluetooth equipment with a Bluetooth protocol version 4.0. Through adding the positioning data in the bluetooth data of treating positioning device self transmission for old equipment, old equipment also realize the function of location, and then in AOA location's application and popularization, reduce the equipment cost and the equipment renewal cost that AOA location used.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Method embodiment one
Figure 2 illustrates one embodiment of a BLE bluetooth AOA positioning method of the present application. As shown in fig. 2, the BLE bluetooth AOA positioning method of the present application includes:
the process S201 adds positioning data to the bluetooth data transmitted by the device to be positioned, where the positioning data identifies the position of the device to be positioned.
In this embodiment, in the equipment to be positioned that does not have the transmission specific positioning data, add the positioning data in the bluetooth data of equipment to be positioned transmission, this positioning data is used for instructing the position of the equipment to be positioned. Wherein the device to be positioned comprises a non-bluetooth protocol version 5.1 bluetooth device. In bluetooth AOA positioning, the positioning data may be CTE data. The positioning data is added into the Bluetooth data transmitted by the equipment to be positioned, which does not transmit the specific positioning data, so that the positioning equipment also has the position information in the transmitted data, and the equipment to be positioned is positioned.
Optionally, the positioning data is added to the protocol data unit of the bluetooth data, and the position and length of the positioning data are identified by using the positioning data identifier with a predetermined format.
The Bluetooth data transmitted by the equipment to be positioned contains a protocol data unit (PDU unit), the positioning data is added into the protocol data unit, the added positioning data is marked by the positioning data identification with a preset format, the subsequent equipment is convenient to identify the positioning data, and the position and the length of the positioning data are determined.
Specifically, fig. 3 shows an example of adding positioning data to bluetooth data in the BLE bluetooth AOA positioning method of the present application.
As shown in fig. 1, the positioning data is the CTE data shown in fig. 1. As shown in fig. 3, for a piece of bluetooth data of a common bluetooth device, the present application adds CTE data required for bluetooth AOA positioning into a protocol data unit of the bluetooth data in a predetermined format, i.e. a PDU portion shown in fig. 3, and identifies the position and length of the positioning data by the positioning data identifier in the predetermined format. And then, after the positioning base station receives the Bluetooth data, detecting whether the PDU data contains the custom data, if so, entering a CTE data capture mode, and then starting position calculation.
The added positioning data, i.e., CTE data, is essentially a signal with baseband data of 1. When adding the positioning data, the positioning data may be identified using a custom format PDU. The PDU identification data in the custom format may be set by the user according to different users, and the application is not particularly limited.
Specifically, after adding the CTE data to the PDU data, the PDU positioning data in the custom PDU format is used to identify the position and length of the CTE data. In specific operation, the corresponding CTE positioning data can be added according to different Bluetooth data. For example, in a segment of ble.adv bluetooth packets, the location data id is customized according to the manufacturer's requirement, as shown in fig. 4 below.
As shown in fig. 4, when TYPE is set to 0xFF as the positioning data identifier in the bluetooth data, LEN is set to 0x09, which indicates that the length of the positioning data in the bluetooth data facilitates the subsequent grabbing of the positioning data; because the positioning data transmitted by the device to be positioned comprises a plurality of segments of data, the ID class is used to represent the particular segment of positioning data; MARK CTE identifies the location data flag; the CTE Header and CTE Payload represent specific positioning data content.
It should be noted that, in the actual operation process, each type of setting may be determined according to the manufacturer's self-definition, which is only an example, and the application is not particularly limited.
The process S202 is that the positioning base station receives bluetooth data and identifies positioning data.
In this embodiment, after the positioning base station receives the bluetooth data added with the positioning data, the positioning base station identifies the bluetooth data and determines whether corresponding positioning data exists in the bluetooth data.
Optionally, the positioning base station receives bluetooth data and detects whether a positioning data identifier exists in the protocol data unit; if the Bluetooth data exists, indicating that the positioning data exists in the Bluetooth data; if the positioning data does not exist, the positioning data does not exist in the Bluetooth data.
Specifically, the positioning base station receives the bluetooth data, and detects whether a positioning data identifier exists in the received bluetooth data. If the positioning data identification is detected to exist, determining that the positioning data exists in the Bluetooth data, and further performing subsequent processes; if the positioning data identification is not detected, the Bluetooth data is ordinary Bluetooth data and is processed according to the ordinary Bluetooth data.
Optionally, the BLE bluetooth AOA positioning method of the present application further includes optimizing the positioning base station in advance, and adding a data identification and data capture function in the positioning base station, so that the positioning base station identifies the positioning data in the bluetooth data and captures the positioning data.
In this embodiment, in addition to adding the positioning data to the bluetooth data to be transmitted by the positioning device, correspondingly, a certain optimization needs to be performed on the positioning base station, so that the positioning base station can identify the positioning in the bluetooth data. The positioning base station is added with a data identification and data capture function, identifies positioning data in the Bluetooth data, captures the positioning data and further performs subsequent processing.
Specifically, the positioning base station may process and complete the packet packing according to BLE packet header/payload defined by the specification in the process of processing the baseband data according to bit. The specific process is as follows:
as shown in fig. 3, a piece of data is added after the PDU data part of the standard baseband data to represent the positioning data, i.e., the CTE data. Wherein, a positioning data mark is set before the positioning data to represent the position of the positioning data in the baseband data. Length, etc. After the positioning base station receives the positioned bluetooth data, whether preset custom data, namely a positioning data identifier exists in the ADV Payload is detected in the baseband data of the bluetooth data. For example, the location data identification may be set to 0x 070 xFF, where 0x07 identifies the length of subsequent data in ble. According to the data identifier of 0x 070 xFF, after the positioning base station identifies the data identifier, it is known that the subsequent data has seven bytes, and the expected data length of the positioning data CTE data is 7-1-2 =4bytes, i.e. 4 × 8=32us, and the above calculations are performed in ble. After the positioning base station identifies the positioning data identifier, the positioning base station starts to receive the positioning data at the moment, and simultaneously opens a detection mode of the CTE data. Then, switching the antenna and capturing corresponding positioning data, namely IQ data in the CTE data and storing the IQ data in a cache; after the data reception is finished, detecting whether all bits of baseband data corresponding to the captured IQ data are all 1, if so, determining that the received data are CTE data packets for positioning, and then performing angle calculation on the CTE data stored in the cache to position the equipment to be positioned; if all bits of baseband data corresponding to the captured IQ data are not 1, the received data are considered to be other data of the non-CTE data packet, error data in the cache are cleared, the initial detection state is returned, and the detection and acquisition of the CTE data of the positioning data are carried out again.
It should be noted that the positioning data, that is, the data identifier of the CTE data, may be determined by user-defined according to the setting of the user, and this application is not specifically limited again, and after the data identifier of the positioning data is determined, it is convenient for the subsequent positioning base station to obtain and calculate the positioning data.
In the process S203, if there is positioning data in the bluetooth data, the positioning base station captures the positioning data, and calculates the position of the corresponding device to be positioned according to the positioning data.
In this embodiment, when there is the locating data in the bluetooth data of locating base station to the equipment transmission of undetermined location of discernment, the position and the length of locating data are discerned according to the locating data sign to the locating base station to snatch this data, after obtaining this locating data, calculate this locating data, confirm locating device's position.
Optionally, the process of calculating, by the positioning base station, the position of the corresponding device to be positioned according to the positioning data includes: if the positioning data exists in the Bluetooth data, the positioning base station switches positioning data antennas; capturing positioning data through a positioning data antenna and outputting the positioning data to a computing unit; the calculation unit calculates the positioning data through a preset positioning algorithm to obtain the position of the corresponding equipment to be positioned.
Specifically, if the positioning base station recognizes that positioning data exists in the equipment to be positioned, the positioning base station switches the positioning data antenna, acquires the positioning data through the positioning data antenna, and transmits the positioning data to the calculating unit. And calculating the positioning data by using a predetermined positioning algorithm through a calculating unit, and finally, corresponding to the position of the equipment to be positioned relative to the positioning base station.
Figure 5 shows an example of positioning base station data processing in the BLE bluetooth AOA positioning method of the present application.
As shown in fig. 5, in the positioning base pair, receiving baseband data transmitted by a device to be positioned, detecting whether the baseband data is an ADV data packet, if not, directly outputting the baseband data, and if so, detecting whether the ADV data is manufacturer-defined data; if not, directly outputting the baseband data, and if so, detecting whether a positioning data mark exists in the ADV data; if the positioning data identification does not exist, the baseband data is directly output, if the positioning data exists, the baseband data is indicated to exist, the antenna is switched, IQ data in the CTE positioning data packet is captured, IQ data of different antennas is output, and the equipment to be positioned is positioned through the IQ data.
According to the BLE Bluetooth AOA positioning method, the positioning data is added into the common Bluetooth signal transmitted by the equipment to be positioned, the positioning data is acquired and processed through the optimized positioning base station, the position of the equipment to be positioned is obtained, the positioning of the equipment to be positioned is realized, the equipment cost and the equipment updating cost of Bluetooth AOA positioning application are reduced, and the application range of Bluetooth AOA positioning is widened. CTE data is embedded into a protocol data unit PDU, so that the sending of the CTE data is supported by the existing equipment which does not support AOA positioning, the AOA positioning is further realized, and the functions of intercepting and capturing the CTE data in the protocol data unit are increased through the optimized function of positioning a base station. When the method is implemented, the device to be positioned only needs to update software to additionally send a section of protocol data unit data, and corresponding optimization is carried out on the positioning base station device, so that the positioning of the device to be positioned is realized, and the device updating cost and the time period under the Bluetooth AOA positioning application are greatly reduced.
Product example two
Figure 6 shows a schematic structural diagram of the BLE bluetooth AOA positioning system of the present application.
As shown in fig. 6, the BLE bluetooth AOA positioning system includes: a device to be positioned for transmitting bluetooth data with positioning data added thereto, wherein the positioning data identifies a position of the device to be positioned; and the positioning base station is used for receiving the Bluetooth data and identifying the positioning data, and if the positioning data exists in the Bluetooth data, the positioning data is grabbed, and the position of the corresponding equipment to be positioned is calculated according to the positioning data.
In this embodiment, through treating the bluetooth data addition locating data of positioning device transmission, optimize the location basic station for the location basic station can discern the locating data in the bluetooth data, and snatch this locating data, obtains this locating data, and then carries out subsequent calculation of the equipment position of awaiting positioning.
Optionally, in the device to be located, the positioning data is added to the protocol data unit of the bluetooth data, and the position and length of the positioning data are identified by using the positioning data identifier in the predetermined format.
The Bluetooth data transmitted by the equipment to be positioned contains a protocol data unit (PDU unit), the positioning data is added into the protocol data unit, the added positioning data is marked by the positioning data identification with a preset format, the subsequent equipment is convenient to identify the positioning data, and the position and the length of the positioning data are determined.
Optionally, in the positioning base station, the positioning base station is optimized in advance, and a data identification and data capture function is added in the positioning base station, so that the positioning base station identifies positioning data in the bluetooth data and captures the positioning data.
Besides adding the positioning data to the bluetooth data transmitted by the device to be positioned, the positioning base station needs to be optimized to a certain extent correspondingly, so that the positioning base station can identify the positioning in the bluetooth data. The positioning base station is added with a data identification and data capture function, identifies positioning data in the Bluetooth data, captures the positioning data and further performs subsequent processing.
The BLE Bluetooth AOA positioning system adds the positioning data in the common Bluetooth signal transmitted by the equipment to be positioned, acquires and processes the positioning data through the optimized positioning base station, obtains the position of the equipment to be positioned, realizes the positioning of the equipment to be positioned, reduces the equipment cost and equipment updating cost of Bluetooth AOA positioning application, and widens the application range of Bluetooth AOA positioning. By embedding CTE data into a protocol data unit PDU, the CTE transmission is supported by the existing equipment which does not support AOA transmission, and the functions of intercepting and capturing the CTE data in the protocol data unit are added through the optimized function of positioning a base station. When the method is implemented, the device to be positioned only needs to update software to additionally send a section of protocol data unit data, and corresponding optimization is carried out on the positioning base station device, so that the positioning of the device to be positioned is realized, and the device updating cost and the time period under the Bluetooth AOA positioning application are greatly reduced.
In a particular embodiment of the present application, a computer-readable storage medium stores computer instructions, wherein the computer instructions are operable to perform the BLE bluetooth AOA positioning method described in any of the embodiments. Wherein the storage medium may be directly in hardware, in a software module executed by a processor, or in a combination of the two.
A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
The Processor may be a Central Processing Unit (CPU), other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), other Programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination thereof. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
In one embodiment of the present application, a computer device includes a processor and a memory, the memory storing computer instructions, wherein: the processor operates the computer instructions to perform the BLE bluetooth AOA positioning method described in any of the embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above embodiments are merely examples, which are not intended to limit the scope of the present disclosure, and all equivalent structural changes made by using the contents of the specification and the drawings, or any other related technical fields, are also included in the scope of the present disclosure.
Claims (10)
1. A BLE Bluetooth AOA positioning method is characterized by comprising the following steps:
adding positioning data in Bluetooth data transmitted by equipment to be positioned, wherein the positioning data identifies the position of the equipment to be positioned;
the positioning base station receives the Bluetooth data and identifies the positioning data;
and if the positioning data exists in the Bluetooth data, the positioning base station captures the positioning data and calculates the position of the corresponding equipment to be positioned according to the positioning data.
2. The BLE bluetooth AOA positioning method according to claim 1, wherein the adding of positioning data to the bluetooth data transmitted by the device to be positioned comprises:
and adding the positioning data into a protocol data unit of the Bluetooth data, and using a positioning data identifier with a preset format to identify the position and the length of the positioning data.
3. The BLE bluetooth AOA positioning method according to claim 2, wherein the positioning base station receives the bluetooth data and identifies the positioning data, comprising:
the positioning base station receives the Bluetooth data and detects whether the protocol data unit has the positioning data identification;
if the positioning data exists, the positioning data exists in the Bluetooth data;
and if the positioning data does not exist, the positioning data does not exist in the Bluetooth data.
4. The BLE bluetooth AOA positioning method according to claim 1, further comprising:
and optimizing the positioning base station in advance, and adding data identification and data capture functions in the positioning base station to enable the positioning base station to identify the positioning data in the Bluetooth data and capture the positioning data.
5. The BLE bluetooth AOA positioning method according to claim 1, wherein the capturing, by the positioning base station, the positioning data and calculating the position of the corresponding device to be positioned according to the positioning data if the positioning data exists in the bluetooth data includes:
if the positioning data exists in the Bluetooth data, the positioning base station switches positioning data antennas;
capturing the positioning data through the positioning data antenna and outputting the positioning data to a computing unit;
and the calculation unit calculates the positioning data through a preset positioning algorithm to obtain the position of the corresponding equipment to be positioned.
6. A BLE Bluetooth AOA positioning system, comprising:
a device to be positioned for transmitting Bluetooth data with positioning data added thereto, wherein the positioning data identifies a position of the device to be positioned;
and the positioning base station is used for receiving the Bluetooth data, identifying the positioning data, capturing the positioning data if the positioning data exists in the Bluetooth data, and calculating the position of the corresponding equipment to be positioned according to the positioning data.
7. The BLE Bluetooth AOA positioning system of claim 6, wherein in the device to be positioned, the positioning data is added to a protocol data unit of the Bluetooth data and the position and length of the positioning data is identified using a predetermined format of positioning data identification.
8. The BLE Bluetooth AOA positioning system according to claim 6, wherein, in the positioning base station,
and optimizing the positioning base station in advance, and adding data identification and data capture functions in the positioning base station to enable the positioning base station to identify the positioning data in the Bluetooth data and capture the positioning data.
9. A computer readable storage medium storing computer instructions, wherein the computer instructions are operable to perform the BLE bluetooth AOA positioning method of any one of claims 1-6.
10. A computer device comprising a processor and a memory, the memory storing computer instructions, wherein the processor operates the computer instructions to perform the BLE bluetooth AOA positioning method of any one of claims 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110682567.1A CN113260046A (en) | 2021-06-21 | 2021-06-21 | BLE Bluetooth AOA positioning method, system and medium |
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| CN202110682567.1A CN113260046A (en) | 2021-06-21 | 2021-06-21 | BLE Bluetooth AOA positioning method, system and medium |
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Citations (4)
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|---|---|---|---|---|
| US20160164568A1 (en) * | 2014-12-08 | 2016-06-09 | Samsung Electro-Mechanics Co., Ltd. | Signal transmitting-receiving apparatus |
| CN111148020A (en) * | 2019-12-30 | 2020-05-12 | 上海美迪索科电子科技有限公司 | Positioning system, method, device and computer readable storage medium |
| WO2020107396A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Bluetooth positioning method and bluetooth device |
| CN112312301A (en) * | 2019-08-01 | 2021-02-02 | 中国移动通信集团浙江有限公司 | User terminal positioning method, device, equipment and computer storage medium |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160164568A1 (en) * | 2014-12-08 | 2016-06-09 | Samsung Electro-Mechanics Co., Ltd. | Signal transmitting-receiving apparatus |
| WO2020107396A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Bluetooth positioning method and bluetooth device |
| CN112312301A (en) * | 2019-08-01 | 2021-02-02 | 中国移动通信集团浙江有限公司 | User terminal positioning method, device, equipment and computer storage medium |
| CN111148020A (en) * | 2019-12-30 | 2020-05-12 | 上海美迪索科电子科技有限公司 | Positioning system, method, device and computer readable storage medium |
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