CN212013066U - Positioning base station based on ultra wide band technology - Google Patents
Positioning base station based on ultra wide band technology Download PDFInfo
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- CN212013066U CN212013066U CN202020929691.4U CN202020929691U CN212013066U CN 212013066 U CN212013066 U CN 212013066U CN 202020929691 U CN202020929691 U CN 202020929691U CN 212013066 U CN212013066 U CN 212013066U
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Abstract
The utility model discloses a location basic station based on ultra wide band technique, its constitution include core data processing module, with transmission module that core data processing module links to each other, with the core data processing module links to each other be used for leading the module, with the encryption module that core data processing module links to each other, with the multichannel clock module that core data processing module links to each other UWB module group even has synchronous clock module and PA/LNA module group, PA/LNA circuit module group even has array antenna module. The utility model discloses still be equipped with power module, data processing module, transmission module, be used to lead module, cryptographic module, clock module, UWB module group and PA/LNA module group, be connected with power module respectively. The utility model discloses make location basic station integrated level higher, the performance is stronger to make the location more accurate, and positioning range is wider.
Description
Technical Field
The utility model relates to a location basic station technical field especially relates to a location basic station based on ultra wide band technique.
Background
In the world of mass-to-mass interconnection, location-based applications continue to emerge in various industries. Indoor and outdoor positioning, analysis and management of personnel, articles and AGV can effectively improve the efficiency of production and management, and the method has great significance to many industrial fields.
The existing Wi-Fi equipment can be shared and used by the positioning technology, the cost is low, but the positioning precision is low, signals are easy to interfere, the operation is unstable, and the Wi-Fi positioning needs manual fingerprint collection and updating, so that the time and resources are consumed; the positioning accuracy of the Bluetooth positioning technology is higher than that of Wi-Fi, but the deployment density of base stations is higher, the construction and maintenance cost is higher, and the Bluetooth positioning technology is not suitable for positioning in a larger space.
Therefore, a positioning base station based on the ultra-wideband technology is needed to solve the problems of low precision, high hardware complexity and high system cost of the existing positioning technology.
SUMMERY OF THE UTILITY MODEL
The utility model provides a location single basic station based on ultra wide band technique realizes highly integrating, and it is low to solve above-mentioned current positioning technology positioning accuracy, and the hardware complexity is high, the problem of system with high costs.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a location basic station based on ultra wide band technique, including core data processing module, with transmission module that core data processing module links to each other, with the core data processing module links to each other be used to lead the module, with the encryption module that data processing module links to each other, with the multichannel clock module that data processing module links to each other UWB module group even have synchronous clock module and PA/LNA module group links to each other with array antenna module. The utility model is also provided with a power module which is connected with a data processing module, a transmission module, an inertial navigation module, an encryption module, a clock module, a UWB module group and a PA/LNA module group;
the core data processing module passes through I2C is connected with a clock module, the clock module is connected with each UWB module, each UWB module is connected with one PA/LNA module, and each PA/LNA module is connected with each array element of the array antenna module;
the base station is also provided with a power module, and the data processing module, the transmission module, the inertial navigation module, the encryption module, the UWB module group, the PA/LNA module group and the clock module are all connected with the power module.
Preferably, the number of the array elements of the array antenna module is greater than or equal to 3, the array elements are arranged in a polygonal shape or in a staggered arrangement, and the antenna elements are directly welded together with the radio frequency interface of the PA/LNA module or connected through the SMA interface of the radio frequency connector.
Preferably, the data processing module adopts
A 32-bit STM32MCU series of microprocessors.
Preferably, the transmission module may be an ethernet module, connected to the data processing module through a high-speed standard 4-wire SPI, and externally connected to the server through a network cable.
Preferably, the transmission module can also be connected with the 4G module through a UARTS serial port and externally connected with a server through the 4G module.
Preferably, the UWB modules are synchronously connected through a SYNC signal parallel to the data processing module.
Preferably, the clock module passes through I2C is connected with the data processing module and provides a 38MHz reference clock for the UWB module group.
Preferably, the inertial navigation module is through I2C is connected with a data processing module and provides auxiliary positioning reference for the UWB;
preferably, the encryption module is connected with the data processing module through the SPI, and stores the data acquired by the UWB module after being calculated by the data processing module, and can encrypt the positioning data;
preferably, the power module adopts the power module of 802.3af standard POE power supply or DC005 interface 12V direct current steady voltage power supply, the power module is connected data processing module, transmission module, is used to lead the module, encryption module, clock module, UWB module group and PA/LNA module group and supplies power.
The utility model discloses following beneficial technological effect has been gained for prior art:
1. the utility model provides a pair of location basic station based on ultra wide band technique adopts ultra wide band location technique, compares in traditional Wi-Fi location and bluetooth location, and positioning accuracy is higher, can realize 10 ~ 30 centimetre rank location, compares in traditional ultra wide band basic station, can realize the function of range finding and angle finding, further realizes the location, and the interference killing feature is stronger, and the consumption is lower, has guaranteed the steady operation of location basic station.
2. The utility model provides a pair of location basic station based on ultra wide band technique, the density that the location basic station was arranged is littleer, and in spacious region, the basic station can be separated 150 meters and arrange, and this basic station can realize the target location alone, need not the cooperation of a plurality of basic stations, the quantity of the basic station that has significantly reduced has reduced the cost of equipment arrangement.
3. The utility model provides a pair of location basic station based on ultra wide band technique, a location basic station can support a plurality of positioning device simultaneously, compares in traditional Wi-Fi location basic station and only can support several positioning device and use simultaneously, and its application range is wider, and adaptability is stronger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic diagram showing the relationship between functional modules of a positioning base station based on the ultra-wideband technology provided by the present invention;
fig. 2 is a schematic diagram of data processing connection of each functional module of a positioning base station based on the ultra-wideband technology provided by the present invention;
fig. 3 is a schematic diagram of the array antenna arrangement of the positioning base station based on the ultra-wideband technology provided by the present invention;
fig. 4 is a schematic diagram of a resolving flow of a positioning base station positioning data server based on the ultra-wideband technology provided by the utility model;
fig. 5 is the utility model provides a pair of location basic station location data local solution flow schematic diagram based on ultra wide band technique
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a location basic station based on ultra wide band technique through setting up the UWB module to it is low to solve current location technique positioning accuracy, and the high use cost who leads to of basic station density problem high.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example 1:
this embodiment provides a location basic station based on ultra wide band technique, as shown in fig. 1, including casing and the inside nuclear core plate and the mainboard of casing, nuclear core plate with the mainboard passes through the plug pin connector and pegs graft, is equipped with data processing module 1 on the mainboard, and data processing module 1 still leads toThe system is connected with a UWB module 3, a transmission module 6 and an encryption module 8 through each SPI bus respectively; the data processing module 1 is connected with the server through the transmission module 2; the data processing module 1 passes through each path I2The bus C is respectively connected with the inertial navigation module 7 and the clock module 2; as shown in fig. 2, the core board is provided with UWB modules 3, each UWB module 3 is synchronously connected with the other UWB modules 3, each ultra wide band module 3 is respectively connected with the data processing module 1 and the clock module 2, and each UWB module 3 is correspondingly connected with one PA/LNA module 4; each PA/LNA module 4 is further connected to each antenna in the array antenna module 5, as shown in fig. 3, the array antenna is schematically arranged; the mainboard is also externally connected with a reset button through a reset circuit; the mainboard is also provided with a power module 9, and the data processing module 1, the transmission module 6, the inertial navigation module 7, the encryption module 8, the clock module 2, the ultra-wideband module 3 and the PA/LNA module 4 are respectively connected with the power module 9.
Specifically, the number of antennas in the antenna array module 5 is equal to 4, and the antennas are arranged in a square shape, so that the size of the base station is reduced to the maximum extent, the antenna array module 5 and the radio frequency interface of the PA/LNA module 4 are connected through direct welding or a radio frequency connector SMA interface, and specifically, the SMA is an interface of an inner hole of an external thread and an antenna butt joint of an inner needle of an internal thread.
Further, as shown in fig. 2, the data processing module 1 is connected to the UWB module 3 through the SPI bus 1 for data interaction, and the UWB modules 3 are synchronously connected through the parallel SYNC signals, so that the UWB module 3 is ensured to synchronously receive the radio frequency signals of the PA/LNA module 4 and return UWB positioning data to the data processing module 1.
Further, the encryption module 8 is connected with the data processing module 1 through the SPI bus 3, encrypts the data obtained from the data processing module 1 and transmits the encrypted data back to the data processing module 1.
Further, the transmission module 6 is connected with the data processing module 1 through a high-speed standard 4-wire SPI bus 2, and reports the acquired encrypted data to the server through a network wire by adopting an Ethernet PHY interface;
in other scene embodiments that cannot deploy a network cable, the transmission module 6 may also use a universal asynchronous transceiver transmitter to externally connect the encrypted data to the server through 4G, so as to solve the problem that the data cannot be reported due to network cable deployment limitation in a complex environment.
Further, the data processing module 1 passes through I2The C bus 2 is connected with an inertial navigation module 7, and a magnetometer, an acceleration sensor and a gyroscope sensor are integrated in the inertial navigation module 7 and used for providing auxiliary positioning data;
further, each UWB module 3 is connected to each PA/LNA module 4 through a 50ohm impedance line, and the UWB module 3 controls a switch in the PA/LNA module 4 to select PA transmission or LNA reception;
as shown in fig. 2, the clock module 2 employs a clock generator serial multi-way clock chip, which provides a 38MHz synchronous clock for the UWB module 3.
Further, in the antenna array arrangement shown in fig. 2 and 3, each PA/LNA module 4 is connected to each antenna in the array antenna module 5, and is connected by a direct welding or a radio frequency connector SMA interface, specifically, SMA is a butt joint of an interface of an internal thread inner hole and an antenna of an internal thread inner pin;
further, as shown in fig. 1, the power module 5 adopts a comprehensive power supply of the power supplied by the 802.3af standard POE and the power supplied by the DC005 interface 12V DC voltage stabilization, the comprehensive power supply is sequentially connected to the DC/DC converter and the low dropout voltage regulator for voltage reduction, and the low dropout voltage regulator supplies power to the data processing module 1, the clock module 2, the UWB module 3, the PA/LNA module 4, the transmission module 6, the inertial navigation module 7, and the encryption module 8.
Further, as shown in fig. 4, the positioning data information process is that the tag initiates a tof request, the base station interacts with the tag, the base station extracts angle and distance data, the data are encrypted and then reported to the server through the transmission module 6, the server solves the signal arrival angle, and then the distance data and the signal arrival angle are used to solve the tag position, and the formula is as follows:
wherein d is distance data, which refers to the three-dimensional distance between the tag and the base station, α is the direction angle of the tag relative to the base station, β is the pitch angle of the tag relative to the base station, α and β are the signal arrival angles, and (x, y, z) are the three-dimensional coordinates of the tag, and the coordinates of the base station are (0,0, 0). Further, as shown in fig. 5, the base station encrypts the extracted angle and distance data by the encryption module 8, or optionally does not upload the data to the server, and the data processing module 1 in the base station solves the signal arrival angle, and then uses the distance data and the signal arrival angle to solve the tag position, and reports the position information to the server by the transmission module 6.
The utility model provides a pair of location basic station based on ultra wide band technique, its theory of operation is: the ultra-wideband tag module is connected with the positioning base station in the application, the ultra-wideband tag module can be various electronic products provided with positioning tags, the base station is connected with the ultra-wideband tag module in real time to obtain the position of the ultra-wideband tag module, or the measuring data is encrypted and transmitted to the server, the server calculates the position of the ultra-wideband tag module according to the data, the server can store the position and the track of the ultra-wideband tag module, and intelligent management and control of the position are achieved.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete examples, and the explanation of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present description should not be construed as a limitation of the present invention.
Claims (10)
1. A positioning base station based on ultra wide band technology is characterized in that: the system comprises a core data processing module (1), a transmission module (6) connected with the core data processing module (1), an inertial navigation module (7) connected with the core data processing module (1), an encryption module (8) connected with the core data processing module (1), a multi-channel clock module (2) connected with the core data processing module (1), and a UWB module group (3) connected with the core data processing module (1), wherein the UWB module group (3) is connected with the multi-channel clock module (2), the UWB module group (3) is also connected with a PA/LNA module group (4), and the PA/LNA module group (4) is connected with an array antenna module (5);
the intelligent power supply device is characterized by further comprising a power supply module (9), wherein the core data processing module (1), the transmission module (6), the inertial navigation module (7), the encryption module (8), the multi-path clock module (2), the UWB module group (3) and the PA/LNA module group (4) are respectively connected with the power supply module (9).
2. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the core data processing module (1) adopts
The 32-bit STM32MCU series of microprocessors.
3. The ultra-wideband technology based positioning base station of claim 1, characterized in that: and the transmission module (6) is connected with the 4G module.
4. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the transmission module (6) comprises an Ethernet module, and the Ethernet module is connected with the core data processing module (1).
5. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the core data processing module (1) is connected with the inertial navigation module (7), and the inertial navigation module (7) comprises a magnetic sensor, an acceleration sensor and a gyroscope.
6. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the core data processing module (1) is connected with the encryption module (8).
7. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the core data processing module (1) is connected with the multi-channel clock module (2), and the multi-channel clock module (2) is connected with the UWB module group (3).
8. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the core data processing module (1) is connected with the UWB module group (3) through a synchronous signal, and the UWB module group (3) is connected with the PA/LNA module group (4).
9. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the PA/LNA module group (4) is directly connected with the array antenna module (5) in a welding way; or through an SMA interface of the radio frequency connector.
10. The ultra-wideband technology based positioning base station of claim 1, characterized in that: the array antenna module (5) comprises an array antenna module (5) and is characterized in that the number of the antennas is more than or equal to 3, the antennas are arranged in a polygonal mode or in a staggered mode, the antennas are directly connected with the PA/LNA module group (4) in a welding mode or connected with SMA (shape memory alloy) interfaces through radio frequency connectors or connected with coaxial radio frequency wires, the number of the antennas is equal to the number of the PA/LNA module group (4), and the antennas are all circular polarization omnidirectional antennas.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114374926A (en) * | 2021-12-13 | 2022-04-19 | 北京长焜科技有限公司 | 4G/5G communication base station fusion method applying UWB positioning |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114374926A (en) * | 2021-12-13 | 2022-04-19 | 北京长焜科技有限公司 | 4G/5G communication base station fusion method applying UWB positioning |
| CN114374926B (en) * | 2021-12-13 | 2023-09-15 | 北京长焜科技有限公司 | 4G/5G communication base station fusion method applying UWB positioning |
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