CN216057503U

CN216057503U - Fuse positioning system based on BLE bluetooth and AOA technique

Info

Publication number: CN216057503U
Application number: CN202122403417.0U
Authority: CN
Inventors: 朱李娟
Original assignee: Shanghai Keating Communication Technology Co ltd
Current assignee: Shanghai Keating Communication Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-15
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a fusion positioning system based on BLE Bluetooth and AOA technologies, and belongs to the technical field of indoor and outdoor positioning systems. The Bluetooth positioning system comprises a positioning server, wherein the positioning server is connected with a network switch, and the network switch is respectively connected with an outdoor Bluetooth BLE positioning system and an indoor Bluetooth AOA positioning system; the outdoor Bluetooth BLE positioning system comprises a Lora positioning base station, a plurality of Bluetooth positioning terminal devices and a plurality of Bluetooth BLE beacon devices; the indoor Bluetooth AOA positioning system comprises a plurality of AOA base station devices and a plurality of AOA positioning terminal devices. Through providing a bluetooth BLE and bluetooth AOA technical fusion's positioning system, through the meter level positioning accuracy of outdoor bluetooth BLE system and indoor bluetooth AOA positioning system's centimetre level positioning accuracy, solved and faced whole factory and to the requirement of different regional positioning accuracy, when very big saving the cost, also solved the indoor needs of fusing the location and the demand of regional location hierarchical management of outdoor.

Description

Fuse positioning system based on BLE bluetooth and AOA technique

Technical Field

The utility model relates to a fusion positioning system based on BLE Bluetooth and AOA technologies, and belongs to the technical field of indoor and outdoor positioning systems.

Background

The positioning technology in the market at present mainly takes positioning technologies such as UWB, WiFi and Bluetooth as market leading. In all three positioning modes, the terminal equipment sends out broadcast signals to nearby base station equipment, and the base station equipment uploads the collected terminal broadcast signals to a positioning engine through a wired or wireless transmission mode. The positioning engine acquires position information through a three-point positioning principle, and converts the position information into relative coordinates of the region by using position resolving or optimizing algorithms such as TOF, TDOA, a fingerprint library and the like, so that a positioning function is realized.

Among them, UWB positioning systems are more costly than other positioning systems, resulting in a cost of the whole solution that is high. In addition, UWB positioning requires a minimum of 3-point positioning, requiring support of 3 base stations, so as a preferred solution for indoor positioning, if there are too many rooms, the cost of a base station is the number of rooms. The ultra-wideband transmission of the UWB also causes the problems that the communication distance is short (the authorized frequency spectrum of the UWB has quite a plurality of existing communication equipment, the power of the UWB equipment needs to be lower than a certain threshold so as not to influence other communication systems) and the UWB can only transmit within 100 meters, the interference is very easy to cause in the face of complex environments such as steel structures of factories and the like, and the positioning system is unstable and the like.

The RSSI-based WiFi positioning system has weak time-varying characteristics because radio frequency signals are easily interfered, and training data collection workload is large, so that the training data collection workload is gradually eliminated by the market.

Although the bluetooth positioning mode using AOA maintains the advantages of good positioning accuracy and low power consumption, the AOA base station is deployed only at a high cost, and is not suitable for the implementation scenario of on-demand deployment.

Therefore, there is a need for a positioning system that can meet the requirement of the whole factory on the positioning accuracy of different areas, save the cost, and meet the requirement of the integrated positioning between the outdoor and indoor environment and the requirement of the hierarchical management of the area positioning.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide a low-cost fusion positioning system based on BLE bluetooth and AOA technologies, which can meet the requirement of the whole factory on the positioning accuracy of different areas, and solve the requirements of outdoor and indoor fusion positioning and hierarchical management of area positioning.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

a fusion positioning system based on BLE Bluetooth and AOA technology comprises a positioning server, wherein the positioning server is connected with a network switch, and the network switch is respectively connected with an outdoor Bluetooth BLE positioning system and an indoor Bluetooth AOA positioning system;

the outdoor Bluetooth BLE positioning system comprises a Lora positioning base station, a plurality of Bluetooth positioning terminal devices and a plurality of Bluetooth BLE beacon devices, wherein the upper end of the Lora positioning base station is connected with a network switch, the lower end of the Lora positioning base station is connected with the Bluetooth positioning terminal devices respectively, and the Bluetooth positioning terminal devices are in signal connection with the Bluetooth BLE beacon devices;

indoor bluetooth AOA positioning system includes a plurality of AOA base station equipment, a plurality of AOA location terminal equipment, the upper end and the network switch of AOA base station equipment are connected, and the lower end respectively with AOA location terminal equipment signal connection.

As a preferred example, the Lora positioning base station and the network switch are connected through one or more of a 4G cellular network, a 5G cellular network, a network cable, or an optical fiber.

As a preferred example, the AOA base station device and the switch are connected by using an optical fiber or a network cable.

The utility model has the beneficial effects that:

according to the positioning system integrating the Bluetooth BLE and the Bluetooth AOA technologies, the meter-level positioning precision of an outdoor Bluetooth BLE system and the centimeter-level positioning precision of an indoor Bluetooth AOA positioning system are adopted, the problem that the positioning precision of different areas is required in the face of the whole factory in the prior art is solved, the cost is greatly saved, and meanwhile, the requirements of outdoor and indoor integrated positioning and the requirements of area positioning hierarchical management are also met.

Drawings

Fig. 1 is a block diagram of the fusion positioning system according to the present invention.

In the figure: 1. a positioning server; 2. a network switch; 3. an outdoor Bluetooth (BLE) positioning system; 31. lora positioning base station; 32. positioning a terminal device by Bluetooth; 33. a Bluetooth BLE beacon device; 4. an indoor Bluetooth AOA positioning system; 41. an AOA base station device; 42. AOA positions terminal equipment.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the utility model easy to understand, the utility model is further described with reference to the specific drawings and the embodiments.

Example (b):

as shown in fig. 1, an embodiment of the present invention provides a converged positioning system based on BLE bluetooth and AOA technologies, which includes a positioning server 1, where the positioning server 1 is connected to a network switch 2, and both the positioning server 1 and the network switch 2 adopt existing commercially available products.

The network switch 2 is connected with an outdoor Bluetooth BLE positioning system 3 and an indoor Bluetooth AOA positioning system 4 respectively.

Wherein, outdoor bluetooth BLE positioning system 3 includes Lora location basic station 31, a plurality of bluetooth location terminal equipment 32 and a plurality of bluetooth BLE beacon equipment 33, and Lora location basic station 31 upper extreme is connected with network switch 2, and the lower extreme is connected to bluetooth location terminal equipment 32 respectively, bluetooth location terminal equipment 32 and bluetooth beacon equipment 33 signal connection, and wherein, bluetooth location terminal equipment 32 adopts the locator card of current market sale.

Indoor bluetooth AOA positioning system 4 includes a plurality of AOA base station equipment 41, a plurality of AOA location terminal equipment 42, and AOA base station equipment 41's upper end is connected with network switch 2, and the lower terminal respectively with AOA location terminal equipment 42 signal connection, AOA location terminal equipment 42 can adopt current location bracelet or location label etc. of selling.

The Lora positioning base station 31 is connected with the network switch 2 through one or more of a 4G cellular network, a 5G cellular network, a network cable or an optical fiber. The AOA base station device 41 is connected to the switch by an optical fiber or a network cable.

The working principle is as follows:

(1) the bluetooth BLE beacon device 33 broadcasts BLE signals at the same frequency (once in about 30 seconds) to a range within 10 meters of the vicinity.

(2) The bluetooth positioning terminal device 32 located outdoors may scan nearby BLE signals, and when it is detected that the nearby BLE signals are greater than or equal to three, it is determined that the environment is good for outdoor signals, and then information of the scanned BLE signals is uploaded to the Lora positioning base station 31 through the Lora signals.

(3) Base station 31 is fixed a position to Lora for do data passback communication, the information data of BLE signal passes through bluetooth positioning terminal device 32's Lora, with data upload to Lora fixed a position base station 31, and Lora fixed a position base station 31 and will collect information data passback to positioning server 1.

(4) The positioning server 1 obtains coordinate information of the BLE signal through positioning settlement based on the signal data information of the Lora positioning base station 31. The positioning server 1 then transmits the coordinate information to each terminal device, such as a computer, a mobile phone, etc., through the Lora signal.

(5) AOA positioning terminal device 42 and bluetooth positioning terminal device 32, when indoor, AOA positioning terminal device 42 broadcasts BLE signals to nearby AOA base stations.

(6) The AOA base station device 41 is an omnidirectional array antenna assembly, and obtains positioning information by scanning BLE signals sent by nearby AOA positioning terminal devices 42, and the AOA base station device 41 uploads the information to the positioning server 1 through the network switch 2.

The utility model has the following beneficial effects:

through using the centimetre level location of AOA high accuracy to fix a position and the integration of bluetooth meter level location mutually, accomplished to make the indoor outer different positioning accuracy demand obtain satisfying, indoor use AOA uses BLE bluetooth outdoors, and the resource obtains bigger degree utilization in the space, has solved the demand problem of different regions to different positioning accuracy. The cost is reduced to a great extent, when UWB is used for covering the whole scene, the resource utilization rate is insufficient, the demand is enlarged, the cost rises rapidly, and the influence of unbalanced benefit is caused to clients. The stability and the anti-interference problem have been solved better, have reduced the construction degree of difficulty, need not the widely distributed basic station outdoors, improve the security reliability.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A fusion positioning system based on BLE Bluetooth and AOA technology is characterized by comprising a positioning server (1), wherein the positioning server (1) is connected with a network switch (2), and the network switch (2) is respectively connected with an outdoor Bluetooth BLE positioning system (3) and an indoor Bluetooth AOA positioning system (4);

the outdoor Bluetooth BLE positioning system (3) comprises a Lora positioning base station (31), a plurality of Bluetooth positioning terminal devices (32) and a plurality of Bluetooth BLE beacon devices (33), wherein the upper end of the Lora positioning base station (31) is connected with a network switch (2), the lower end of the Lora positioning base station is connected with the Bluetooth positioning terminal devices (32), and the Bluetooth positioning terminal devices (32) are in signal connection with the Bluetooth BLE beacon devices (33);

indoor bluetooth AOA positioning system (4) include a plurality of AOA base station equipment (41), a plurality of AOA positioning terminal equipment (42), the upper terminal and network switch (2) of AOA base station equipment (41) are connected, and the lower terminal respectively with AOA positioning terminal equipment (42) signal connection.

2. The converged positioning system based on BLE Bluetooth and AOA technology, according to claim 1, wherein the Lora positioning base station (31) and the network switch (2) are connected through one or more of a 4G cellular network, a 5G cellular network, a network cable or an optical fiber.

3. The system according to claim 1, wherein the AOA base station device (41) is connected to the switch through an optical fiber or a network cable.