CN111385869A - WiFi beacon receiving chip, terminal and WiFi positioning system - Google Patents
WiFi beacon receiving chip, terminal and WiFi positioning system Download PDFInfo
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- CN111385869A CN111385869A CN201811640887.5A CN201811640887A CN111385869A CN 111385869 A CN111385869 A CN 111385869A CN 201811640887 A CN201811640887 A CN 201811640887A CN 111385869 A CN111385869 A CN 111385869A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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Abstract
The invention provides a WiFi beacon receiving chip, a terminal and a WiFi positioning system, wherein the WiFi beacon receiving chip comprises: the system comprises a signal receiving unit, an analog-to-digital conversion unit, an Ethernet access unit and a control unit, wherein the signal receiving unit in a WiFi Beacon receiving chip is used for amplifying received WiFi Beacon broadcast signals to obtain analog signals, the analog signals are converted into digital signals by the analog-to-digital conversion unit, the digital signals are converted into target data by the Ethernet access unit, finally, the control unit is used for determining a signal intensity value corresponding to the Beacon broadcast signals according to the target data, and the position of a terminal is determined based on the signal intensity value.
Description
Technical Field
The invention belongs to the technical field of electronics, and particularly relates to a WiFi beacon receiving chip, a terminal and a WiFi positioning system.
Background
The existing outdoor positioning or navigation scheme can be realized through a Beidou satellite positioning system or a global positioning system, and can meet the required position service requirement. However, in the indoor environment, due to the severe attenuation and multipath effect of the satellite positioning signal, the outdoor positioning technical solution cannot meet the indoor positioning and navigation requirements.
With the increasing service demand of people for indoor positioning, although the existing indoor positioning scheme can be realized based on signal transmission modes such as bluetooth, zigbee protocol, ultrasonic wave, infrared, laser and the like, the above schemes all need to deploy related infrastructure, so that more manpower and material resources need to be consumed when the indoor positioning is realized, and the problem of high cost exists.
Disclosure of Invention
The embodiment of the invention provides a WiFi beacon receiving chip, a terminal and a WiFi positioning system, which can reduce the cost for realizing indoor positioning.
The invention aims to provide a WiFi beacon receiving chip which is used for positioning a terminal, and comprises:
the signal receiving unit is connected with the antenna of the terminal and used for amplifying the received WiFi Beacon broadcast signal to obtain an analog signal;
the analog-to-digital conversion unit is connected with the signal receiving unit and is used for converting the analog signal into a digital signal;
the Ethernet access unit is connected with the analog-to-digital conversion unit and used for converting the digital signal into target data;
and the control unit is connected with the Ethernet access unit and used for determining a signal intensity value corresponding to the Beacon broadcast signal according to the target data and determining the position of the terminal based on the signal intensity value.
Another object of the present invention is to provide a terminal, which includes the WiFi beacon receiving chip as described above.
Still another object of the present invention is to provide a WiFi positioning system, which includes:
the wireless access point AP is used for radiating WiFi Beacon broadcast signals to the periphery;
the terminal is used for wirelessly receiving the Beacon broadcast signal and determining a signal intensity value corresponding to the Beacon broadcast signal;
and the positioning server is in wireless connection with the terminal and is used for receiving the signal strength value and determining the position of the terminal based on the signal strength value.
The invention provides a WiFi beacon receiving chip, a terminal and a WiFi positioning system, wherein the WiFi beacon receiving chip comprises: the system comprises a signal receiving unit, an analog-to-digital conversion unit, an Ethernet access unit and a control unit, wherein the signal receiving unit in a WiFi Beacon receiving chip is used for amplifying received WiFi Beacon broadcast signals to obtain analog signals, the analog signals are converted into digital signals by the analog-to-digital conversion unit, the digital signals are converted into target data by the Ethernet access unit, finally, the control unit is used for determining a signal intensity value corresponding to the Beacon broadcast signals according to the target data, and the position of a terminal is determined based on the signal intensity value.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a WiFi beacon receiving chip according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a WiFi beacon receiving chip according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a WiFi positioning system provided in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a WiFi beacon receiving chip according to an embodiment of the present invention, and for convenience of description, only a portion related to the embodiment of the present invention is shown.
It should be noted that, in this embodiment, the WiFi beacon receiving chip is applied to a terminal, the terminal may be a mobile phone, a tablet computer, or the like, and an antenna for receiving a radio frequency signal is built in the terminal.
As shown in fig. 1, a WiFi beacon receiving chip 100 includes: a signal receiving unit 10, an analog-to-digital conversion unit 20, an ethernet access unit 30, and a control unit 40. Specifically, the method comprises the following steps:
and the signal receiving unit 10 is connected to the antenna 110 of the terminal, and is configured to amplify the received WiFi Beacon broadcast signal to obtain an analog signal.
And an analog-to-digital conversion unit 20 connected to the signal receiving unit 10 for converting the analog signal into a digital signal.
And an ethernet access unit 30 connected to the analog-to-digital conversion unit 20 for converting the digital signal into target data.
And the control unit 40 is connected to the ethernet access unit 30, and is configured to determine a signal strength value corresponding to the Beacon broadcast signal according to the target data, and determine the location of the terminal based on the signal strength value.
In all embodiments of the present application, the WiFi Beacon receiving chip is applied in the terminal, and provides a physical layer support for the terminal to implement wireless data transmission, and impedance matching between the antenna 110 and the WiFi Beacon receiving chip can be implemented in advance by debugging signal frequency or phase, so that the antenna 110 can detect a Beacon broadcast signal of an Access Point (AP) around the terminal.
In practical applications, the wireless AP may be a simplex wireless AP or an extended wireless AP, such as a wireless switch or a wireless router.
It should be noted that, in the WiFi network, the wireless AP defaults to transmit a Beacon broadcast signal, where the Beacon broadcast signal includes information of the WiFi network, a service group name, a supported transmission rate, and the like. Specifically, the Beacon broadcast signal may be transmitted every 100ms apart. Because the Beacon broadcast signal of the frame is an unencrypted signal, when the terminal is not connected to the Internet through the wireless AP, the indoor positioning of the terminal can be realized by receiving the Beacon broadcast signal and determining the signal strength value.
In all embodiments of the present application, the Beacon broadcast signal may be sent by at least two wireless APs by default, that is, the Beacon broadcast signal includes at least two sets of Beacon broadcast signals. The Beacon signals are transmitted to the signal receiving unit 10 through the antenna 110, the signal receiving unit 10 amplifies the at least two sets of Beacon broadcast signals to obtain analog signals, the analog-to-digital conversion unit 20 converts the analog signals into digital signals, and the ethernet access unit 30 converts the digital signals into target data, wherein the target data is obtained based on the at least two sets of Beacon broadcast signals, so that the target data can be used for determining at least two signal strength values corresponding to the at least two sets of Beacon broadcast signals, and finally the control unit 40 determines the position of the terminal based on the signal strength values.
The WiFi beacon receiving chip provided by this embodiment includes: the system comprises a signal receiving unit, an analog-to-digital conversion unit, an Ethernet access unit and a control unit, wherein the signal receiving unit in a WiFi Beacon receiving chip is used for amplifying received WiFi Beacon broadcast signals to obtain analog signals, the analog signals are converted into digital signals by the analog-to-digital conversion unit, the digital signals are converted into target data by the Ethernet access unit, finally, the control unit is used for determining a signal intensity value corresponding to the Beacon broadcast signals according to the target data, and the position of a terminal is determined based on the signal intensity value.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a specific structure of a WiFi beacon receiving chip according to an embodiment of the present invention.
As shown in fig. 2, as a possible implementation manner of the present embodiment, the signal receiving unit 10 includes: a balun unit 11 and a signal amplification unit 12.
The balun unit 11 is connected between the antenna 110 and the signal amplifying unit 12, and is configured to convert the Beacon broadcast signal into a differential signal.
The signal amplifying unit 12 is further electrically connected to the analog-to-digital converting unit 20, and the signal amplifying unit 12 is configured to perform frequency conversion amplification processing on the differential signal to obtain an analog signal.
In an embodiment, the Beacon broadcast signal may be sent by the wireless AP by default, that is, the Beacon broadcast signal includes at least two sets of Beacon broadcast signals. The analog signals are transmitted to the signal receiving unit 10 through the antenna 110, the balun unit 11 in the signal receiving unit 10 converts the at least two sets of Beacon broadcast signals into differential signals, and the signal amplifying unit 12 performs low-noise amplification on the differential signals to obtain analog signals. The analog-to-digital conversion unit 20 converts the analog signal into a digital signal, and then transmits the digital signal to the ethernet access unit 30.
As shown in fig. 2, as a possible implementation manner of this embodiment, the ethernet access unit 30 includes: a physical interface transceiver 31 and a medium access controller 32.
The physical interface transceiver 31 is connected between the analog-to-digital conversion unit 20 and the medium access controller 32, and the physical interface transceiver 31 is configured to convert the digital signal and transmit the converted digital signal to the medium access controller 32.
The media access controller 32 is connected to the control unit 40 for converting the converted digital signal into target data.
It should be noted that in the IEEE-802.3 standard, an ethernet physical interface transceiver is defined, that is, (PHY) is also called a physical Layer port. The PHY connects a Media Access Control (MAC) device to a physical medium, such as a fiber or copper cable, at the data link layer. The MAC defines how data frames are transmitted over the medium. Such as physical addressing, logical topology, path of signals through physical topology, etc. The PHY includes a Physical Coding Sublayer (PCS) and a Physical media dependent Sublayer (PMD). The PCS encodes and decodes the transmitted and received information in order to make it easier for the receiver to recover the signal.
It is understood that in practical applications, the ethernet access unit 30 may optionally include a chip unit in which the PHY and the MAC are integrated. The analog-to-digital conversion unit 20 converts the analog signal into a digital signal, sends the digital signal to the ethernet access unit 30, converts the digital signal through the physical interface transceiver 31, that is, the PHY, and transmits the converted digital signal to the media access controller 32, that is, the MAC, to obtain target data. Since the target data is obtained based on at least two sets of Beacon broadcast signals, the target data may be used to determine at least two signal strength values corresponding to the at least two sets of Beacon broadcast signals, and finally, the control unit 40 determines the location of the terminal based on the at least two signal strength values.
As a possible implementation of this embodiment, the physical interface transceiver 31 is connected to the media access controller 32 through a media independent interface MII.
It should be noted that the media independent interface is the ethernet industry standard defined by IEEE-802.3. It includes a data interface, and a management interface between the MAC and PHY. The data interface comprises two separate channels for the transmitter and the receiver, respectively. Each channel has its own data, clock and control signals. The MII data interface requires a total of 16 signals. The management interface is a dual signal interface: one is a clock signal and the other is a data signal, and the PHY can be monitored and controlled through the management interface.
Further, as a possible implementation manner of this embodiment, the physical interface transceiver 31 is further configured to control an integration duration of receiving the Beacon broadcast signal to be greater than a preset standard duration.
In this embodiment, the preset standard time length is an integration time length when the conventional WiFi chip receives the Beacon broadcast signal.
It should be noted that, because the conventional WiFi chip needs to perform information interaction with the wireless AP, when the Beacon broadcast signal is radiated by the wireless AP, in order to ensure that the information interaction between the wireless AP of the WiFi chip can be performed normally, the influence on the real-time performance of communication due to signal transmission delay between the wireless AP and the WiFi chip is considered, so that the integration time is limited to a certain extent. However, in the embodiment of the application, since the WiFi Beacon receiving chip only receives the Beacon broadcast signal and does not perform information interaction with the wireless AP, the integration time length for receiving the Beacon broadcast signal is controlled to be longer than the preset standard time length, so that the sensitivity of the WiFi Beacon receiving chip can be improved to a great extent, the number of wireless APs deployed in an indoor area can be reduced, the infrastructure deployment cost of indoor area positioning is further reduced, and the integration time length is longer than the preset conventional integration time length, so that the positioning switching efficiency can be improved when switching from outdoor positioning to indoor positioning.
The WiFi beacon receiving chip provided by this embodiment includes: the system comprises a signal receiving unit, an analog-to-digital conversion unit, an Ethernet access unit and a control unit, wherein the signal receiving unit in a WiFi Beacon receiving chip is used for amplifying received WiFi Beacon broadcast signals to obtain analog signals, the analog signals are converted into digital signals by the analog-to-digital conversion unit, the digital signals are converted into target data by the Ethernet access unit, finally, the control unit is used for determining a signal intensity value corresponding to the Beacon broadcast signals according to the target data, and the position of a terminal is determined based on the signal intensity value.
Another object of the present embodiment is to provide a terminal, and particularly refer to fig. 3.
Fig. 3 shows a schematic structural diagram of a terminal according to an embodiment of the present invention.
As shown in fig. 3, a terminal 200 includes the WiFi beacon receiving chip 100 of the above embodiment.
It is understood that, since the detailed description and the working principle of the terminal 200 provided in this embodiment related to the present invention have been set forth in the above embodiments, detailed descriptions thereof are omitted.
The terminal provided by this embodiment includes the WiFi Beacon receiving chip in the above embodiment, the signal receiving unit in the WiFi Beacon receiving chip amplifies the received WiFi Beacon broadcast signal to obtain an analog signal, the analog signal is converted into a digital signal by the analog-to-digital conversion unit, the digital signal is converted into target data by the ethernet access unit, and finally, the signal strength value corresponding to the Beacon broadcast signal is determined by the control unit according to the target data, and the position of the terminal itself is determined based on the signal strength value.
It is still another object of the present embodiment to provide a WiFi positioning system, which is specifically referred to fig. 4.
Fig. 4 is a schematic structural diagram of a WiFi positioning system provided in an embodiment of the present invention.
As shown in fig. 4, the WiFi positioning system 300 includes: a wireless access point AP310, a terminal 320 and a positioning server 330. Specifically, the method comprises the following steps:
and the wireless access point AP310 is used for radiating WiFi Beacon broadcast signals to the surroundings.
And the terminal 320 is configured to wirelessly receive the Beacon broadcast signal and determine a signal strength value corresponding to the Beacon broadcast signal.
And the positioning server 330 is in wireless connection with the terminal 320 and is used for receiving the signal strength value and determining the position of the terminal 320 based on the signal strength value.
In all embodiments of the present application, the wireless access point AP310 may be a simplex AP or an extended AP, such as a wireless switch or a wireless router. The terminal 320 may be a mobile device such as a mobile phone, a tablet computer, etc. The terminal 320 is provided with an antenna for receiving radio frequency signals, the antenna can be wirelessly connected with the wireless AP310 and receive Beacon broadcast signals issued by the wireless AP310, and the terminal 320 can determine a signal strength value corresponding to the Beacon broadcast signals based on the Beacon broadcast signals. The signal strength value is transmitted to the positioning server 330 through the mobile communication network, and after receiving the signal strength value, the positioning server 330 determines the location of the terminal 320 based on the signal strength value.
It is understood that the mobile communication network may be an existing 2G mobile communication network, a 3G mobile communication network, a 4G mobile communication network, a 5G mobile communication network, etc., a local area wireless communication network such as BT, conventional WIFI, etc.
As to what kind of scenario needs to determine the location of the terminal, the following scenarios can be included but not limited to:
scene: when a user needs to perform indoor positioning through a terminal in a market, the user scans surrounding wireless APs by starting a wireless network of the terminal. Since the wireless AP defaults to issuing Beacon broadcast signals within a certain time interval, the terminal can scan all Beacon broadcast signals received at its location. The wireless AP can release the Beacon broadcast signal and can also carry the resources of the market map in the Beacon broadcast signal, and after the terminal loads the resources, the terminal outputs the market map interface on the display module of the terminal equipment and marks the position of the terminal on the market map interface according to the position information obtained by positioning.
It should be noted that, in practical applications, the wireless AP310 in the WiFi positioning system 300 is deployed in an indoor area where indoor positioning needs to be provided, and the positioning server 330 may be deployed in the same indoor area or other indoor areas.
It can be understood that, when deploying the wireless AP310, at least two wireless APs 310 may be deployed at different positions in an indoor area according to a site requirement, and Beacon broadcast signals that may be issued by the at least two wireless APs 310 simultaneously form a Beacon broadcast signal group, where the Beacon broadcast signal group issued by the at least two wireless APs 310 covers the indoor area, and an overlap area exists between the Beacon broadcast signal groups. In the indoor area covered by the Beacon broadcast signal group, the terminal 320 can wirelessly receive the Beacon broadcast signal, and the signal strength values corresponding to different Beacon broadcast signals determined by the terminal are different according to the strength of the Beacon broadcast signal issued by the wireless AP310 and the difference in distance between the wireless AP310 and the terminal 320.
It should be noted that, a corresponding target database or a mapping list is preconfigured in the positioning server 330, where data in the target database and data in the mapping list are both used to describe a corresponding relationship between different signal strength values and coordinate information, and the coordinate information is used to identify a specific location of an indoor area. When the positioning server 330 receives signal strength values corresponding to different Beacon broadcast signals determined by the terminal, coordinate information is determined from a target database or a mapping list according to the signal strength values corresponding to the different Beacon broadcast signals, and then the specific position of the terminal is determined.
In addition, the positioning server 330 also stores map resources of an indoor area, and after the specific position of the terminal is determined, the position of the terminal can be identified in the map of the indoor area, and the terminal is packaged into a corresponding positioning data packet and fed back to the terminal 320 for display.
In practical applications, the indoor area covered by the Beacon broadcast signal group may be a library, a shopping mall, an indoor playground, or the like.
As a possible implementation manner of this embodiment, when the terminal 320 receives the Beacon broadcast signal and determines a signal strength value corresponding to the Beacon broadcast signal, the signal strength value is transmitted to the positioning server 330 through the mobile communication network, the positioning server 330 determines the current location information of the terminal 320 based on the signal strength value, and then the current location information may be sent to the terminal 320 through the mobile communication network.
The positioning server 330 may send the current location information to the terminal 320 through the mobile communication network, and may also send the indoor area map resource to the terminal 320, and identify the location of the terminal 320 in the indoor area map, so that the user may perform data transmission indoors through the terminal 320 and the positioning server 330, thereby implementing indoor positioning operation, and providing a basis for navigation operation.
As a possible implementation manner of this embodiment, the terminal 320 includes: the antenna and the WiFi beacon receiving chip. Specifically, the method comprises the following steps:
and the antenna is used for wirelessly receiving Beacon broadcast signals.
And the WiFi Beacon receiving chip is connected with the antenna and is used for determining the signal strength value corresponding to the Beacon broadcast signal.
As a possible implementation manner of this embodiment, the WiFi beacon receiving chip includes: the device comprises a signal receiving unit, an analog-to-digital conversion unit, an Ethernet access unit and a control unit. Specifically, the method comprises the following steps:
and the signal receiving unit is connected with an antenna of the terminal and used for amplifying the received WiFi Beacon broadcast signal to obtain an analog signal.
And the analog-to-digital conversion unit is connected with the signal receiving unit and is used for converting the analog signal into a digital signal.
And the Ethernet access unit is connected with the analog-to-digital conversion unit and used for converting the digital signal into target data.
And the control unit is connected with the Ethernet access unit and used for determining a signal intensity value corresponding to the Beacon broadcast signal according to the target data.
As a possible implementation manner of this embodiment, the signal receiving unit includes: the device comprises a balun unit and a signal amplification unit.
The balun unit is connected between the antenna and the signal amplification unit and used for converting the Beacon broadcast signal into a differential signal.
The signal amplification unit is also electrically connected with the analog-to-digital conversion unit and is used for carrying out frequency conversion amplification processing on the differential signal to obtain an analog signal.
As a possible implementation manner of this embodiment, the ethernet access unit includes: a physical interface transceiver and a media access controller.
The physical interface transceiver is connected between the analog-to-digital conversion unit and the medium access controller, and is used for converting the digital signal and transmitting the converted digital signal to the medium access controller.
The medium access controller is connected with the control unit and used for converting the converted digital signals into target data.
It can be understood that, in the present embodiment, a WiFi Beacon receiving chip is built in the terminal 320, which is different from the previous embodiment in that, after determining a signal strength value corresponding to a Beacon broadcast signal, the terminal 320 in the present embodiment transmits the signal strength value to the positioning server 330 through the mobile communication network, and the positioning server 330 determines the current location information of the terminal 320 based on the signal strength value, and it is not necessary for the WiFi Beacon receiving chip to determine the current location information of the terminal 320 based on the signal strength value, so that the same points as the previous embodiment are omitted here, and details are not repeated here.
The WiFi positioning system provided in this embodiment includes a wireless access point AP310, a terminal 320, and a positioning server 330, where the wireless AP310 is deployed in an indoor area, after the terminal 320 receives a Beacon broadcast signal issued by the wireless AP310, the terminal determines a signal strength value corresponding to the Beacon broadcast signal, and sends the signal strength value to the positioning server 330 through a mobile communication network, and the positioning server 330 determines the position of the terminal 320 based on the signal strength value.
The units in the terminal of the embodiment of the invention can be merged, divided and deleted according to actual needs.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A WiFi beacon receiving chip is used for terminal positioning, and is characterized by comprising:
the signal receiving unit is connected with the antenna of the terminal and used for amplifying the received WiFi Beacon broadcast signal to obtain an analog signal;
the analog-to-digital conversion unit is connected with the signal receiving unit and is used for converting the analog signal into a digital signal;
the Ethernet access unit is connected with the analog-to-digital conversion unit and used for converting the digital signal into target data;
and the control unit is connected with the Ethernet access unit and used for determining a signal intensity value corresponding to the Beacon broadcast signal according to the target data and determining the position of the terminal based on the signal intensity value.
2. The WiFi beacon receiving chip of claim 1, wherein the signal receiving unit includes: the system comprises a balun unit and a signal amplification unit;
the balun unit is connected between the antenna and the signal amplification unit and used for converting the Beacon broadcast signal into a differential signal;
the signal amplification unit is also electrically connected with the analog-to-digital conversion unit and is used for carrying out frequency conversion amplification processing on the differential signal to obtain an analog signal.
3. The WiFi beacon receiving chip of claim 1, wherein the ethernet access unit includes: a physical interface transceiver and a media access controller;
the physical interface transceiver is connected between the analog-to-digital conversion unit and the medium access controller, and is used for converting the digital signal and transmitting the converted digital signal to the medium access controller;
the medium access controller is connected with the control unit and used for converting the converted digital signals into the target data.
4. The WiFi beacon receive chip of claim 3, wherein the physical interface transceiver is connected to the media access controller through a media independent interface MII.
5. A terminal, characterized in that the terminal comprises the WiFi beacon receiving chip of any one of claims 1 to 4.
6. A WiFi positioning system, the WiFi positioning system comprising:
the wireless access point AP is used for radiating WiFi Beacon broadcast signals to the periphery;
the terminal is used for wirelessly receiving the Beacon broadcast signal and determining a signal intensity value corresponding to the Beacon broadcast signal;
and the positioning server is in wireless connection with the terminal and is used for receiving the signal strength value and determining the position of the terminal based on the signal strength value.
7. The WiFi positioning system of claim 6, wherein the terminal comprises:
the antenna is used for wirelessly receiving the Beacon broadcast signal;
and the WiFi Beacon receiving chip is connected with the antenna and used for determining the signal intensity value corresponding to the Beacon broadcast signal.
8. The WiFi positioning system of claim 7, wherein the WiFi beacon receiving chip comprises:
the signal receiving unit is connected with the antenna of the terminal and used for amplifying the received WiFi Beacon broadcast signal to obtain an analog signal;
the analog-to-digital conversion unit is connected with the signal receiving unit and is used for converting the analog signal into a digital signal;
the Ethernet access unit is connected with the analog-to-digital conversion unit and used for converting the digital signal into target data;
and the control unit is connected with the Ethernet access unit and used for determining the signal intensity value corresponding to the Beacon broadcast signal according to the target data.
9. The WiFi positioning system of claim 8, wherein the signal receiving unit comprises: the system comprises a balun unit and a signal amplification unit;
the balun unit is connected between the antenna and the signal amplification unit and used for converting the Beacon broadcast signal into a differential signal;
the signal amplification unit is also electrically connected with the analog-to-digital conversion unit and is used for carrying out frequency conversion amplification processing on the differential signal to obtain an analog signal.
10. The WiFi positioning system of claim 8, wherein the ethernet access unit comprises: a physical interface transceiver and a media access controller;
the physical interface transceiver is connected between the analog-to-digital conversion unit and the medium access controller, and is used for converting the digital signal and transmitting the converted digital signal to the medium access controller;
the medium access controller is connected with the control unit and used for converting the converted digital signals into the target data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811640887.5A CN111385869A (en) | 2018-12-29 | 2018-12-29 | WiFi beacon receiving chip, terminal and WiFi positioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811640887.5A CN111385869A (en) | 2018-12-29 | 2018-12-29 | WiFi beacon receiving chip, terminal and WiFi positioning system |
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| CN111385869A true CN111385869A (en) | 2020-07-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114584156A (en) * | 2020-12-02 | 2022-06-03 | 杭州海康威视数字技术股份有限公司 | Monitoring device and communication control method thereof |
| CN114666722A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Chemical device internal and external positioning system and method based on positioning beacon |
-
2018
- 2018-12-29 CN CN201811640887.5A patent/CN111385869A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114584156A (en) * | 2020-12-02 | 2022-06-03 | 杭州海康威视数字技术股份有限公司 | Monitoring device and communication control method thereof |
| CN114584156B (en) * | 2020-12-02 | 2024-05-10 | 杭州海康威视数字技术股份有限公司 | Monitoring device and communication control method thereof |
| CN114666722A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Chemical device internal and external positioning system and method based on positioning beacon |
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