CN107728108B - Positioning device and system - Google Patents
Positioning device and system Download PDFInfo
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- CN107728108B CN107728108B CN201710791729.9A CN201710791729A CN107728108B CN 107728108 B CN107728108 B CN 107728108B CN 201710791729 A CN201710791729 A CN 201710791729A CN 107728108 B CN107728108 B CN 107728108B
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- signal
- search
- processing chip
- attenuator
- terminal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
Abstract
The present disclosure relates to a positioning device and system. The device comprises: the probe comprises a probe antenna, a signal attenuator and a signal processing chip; the probe antenna is connected with the signal attenuator, and the signal attenuator is connected with the signal processing chip; the probe antenna is used for receiving Wi-Fi search signals of the terminal; the signal attenuator is used for attenuating the Wi-Fi search signal to obtain an attenuated Wi-Fi search signal; the signal processing chip is used for determining the position of the terminal according to the attenuated Wi-Fi search signal. According to the technical scheme, the noise in the signal input to the signal processing chip is filtered through the signal attenuator, high-quality data are provided for positioning of the terminal by the signal processing chip, and efficiency and accuracy of positioning of the terminal by the signal processing chip are improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a positioning device and a system.
Background
In the related art, for some terminals provided with a Wi-Fi (Wireless-Fidelity) module, the location of the terminal may be determined using a Wi-Fi probe. Taking a mobile phone as an example, when the mobile phone needs to be positioned, the mobile phone can continuously send a positioning signal, and the Wi-Fi probe can determine the position of the mobile phone according to the signal strength of the received positioning signal.
Disclosure of Invention
To overcome the problems in the related art, embodiments of the present disclosure provide a positioning device and system. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a positioning device including a probe antenna, a signal attenuator, and a signal processing chip;
the probe antenna is connected with the signal attenuator, and the signal attenuator is connected with the signal processing chip;
the probe antenna is used for receiving Wi-Fi search signals of the terminal;
the signal attenuator is used for attenuating the Wi-Fi search signal to obtain an attenuated Wi-Fi search signal;
the signal processing chip is used for determining the position of the terminal according to the attenuated Wi-Fi search signal.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: noise in signals input to the signal processing chip is filtered through the signal attenuator, high-quality data are provided for positioning of the terminal by the signal processing chip, and efficiency and accuracy of positioning of the terminal by the signal processing chip are improved.
In one embodiment, the positioning device further comprises a first connection member and a second connection member;
the first connecting component is used for connecting the probe antenna and the signal attenuator;
the second connecting component is used for connecting the signal attenuator and the signal processing chip.
In one embodiment, the signal attenuator is configured to attenuate the Wi-Fi search signal by using a preset attenuation value, so as to obtain an attenuated Wi-Fi search signal, where the signal strength of the attenuated Wi-Fi search signal is greater than the signal strength of an external signal received when the first connection component or the second connection component is used as an antenna.
In one embodiment, the first connection part includes a first feeder line, and the second connection part includes a second feeder line;
one end of the first feeder line is connected with the probe antenna, and the other end of the first feeder line is connected with the signal attenuator;
one end of the second feeder line is connected with the signal attenuator, and the other end of the second feeder line is connected with the signal processing chip.
In one embodiment, the preset attenuation value is 3dB.
In one embodiment, the first feeder line is provided with a first electronic component and a first signal shield;
the first electronic component is disposed in the first signal shield.
In one embodiment, the second feed line is provided with a second electronic component and a second signal shield;
the second electronic component is disposed in the second signal shield.
According to a second aspect of embodiments of the present disclosure, there is provided a positioning system comprising a plurality of positioning devices, the positioning devices being the positioning device according to any of the embodiments of the first aspect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic view of a positioning device according to an exemplary embodiment.
Fig. 2 is a schematic structural view of a positioning device according to an exemplary embodiment.
Fig. 3 is a schematic view of a positioning device according to an exemplary embodiment.
Fig. 4 is a graph illustrating signal strength distribution intents acquired by a positioning device according to an exemplary embodiment.
Fig. 5 is a diagram illustrating signal strength distribution intents acquired by a positioning device according to an exemplary embodiment.
Fig. 6 is a schematic structural view of a first feeder line shown according to an exemplary embodiment.
Fig. 7 is a schematic structural view of a second feeder line shown according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
In the related art, when a Wi-Fi probe locates the position of a terminal according to Wi-Fi search signals sent by the terminal, the Wi-Fi probe is easy to be interfered by external signals, so that the Wi-Fi probe has different multiple locating results and lower locating precision under the condition that the position of the terminal is not changed. In the technical scheme provided by the embodiment of the disclosure, the noise in the signal input to the signal processing chip is filtered through the signal attenuator, so that high-quality data is provided for positioning the terminal by the signal processing chip, and the efficiency and the precision for positioning the terminal by the signal processing chip are improved.
The disclosed embodiment provides a positioning device 10, as shown in fig. 1, the positioning device 10 includes a probe antenna 101, a signal attenuator 102, and a signal processing chip 103.
Wherein, the probe antenna 101 is connected with the signal attenuator 102, and the signal attenuator 102 is connected with the signal processing chip 103; the probe antenna 101 is configured to receive Wi-Fi search signals of a terminal; the signal attenuator 102 is used for attenuating the Wi-Fi search signal to obtain an attenuated Wi-Fi search signal; the signal processing chip 103 is used for determining the position of the terminal according to the attenuated Wi-Fi search signal.
For example, when the Wi-Fi function is turned on, the terminal may send a Wi-Fi search signal to the outside according to a preset period of time, and the probe antenna 101 included in the positioning device 10 disposed near the terminal may receive the Wi-Fi search signal sent by the terminal and transmit the Wi-Fi search signal to the signal attenuator 102. After the Wi-Fi search signal is attenuated, the signal attenuator 102 acquires an attenuated Wi-Fi search signal and inputs the attenuated Wi-Fi search signal to the signal processing chip 103, the signal processing chip 103 is preset with a corresponding relation between signal intensity and distance, after the attenuated Wi-Fi search signal is received, the signal processing chip 103 acquires the signal intensity of the attenuated Wi-Fi search signal and inquires the corresponding relation between the signal intensity and the distance, and acquires a distance corresponding to the signal intensity of the attenuated Wi-Fi search signal, wherein the distance is the distance between the terminal and the positioning device 10, and the relative position between the terminal and the positioning device 10 can be determined according to the distance.
In the technical scheme provided by the embodiment of the disclosure, the noise in the signal input to the signal processing chip 103 is filtered through the signal attenuator 102, so that high-quality data is provided for positioning the terminal by the signal processing chip 103, and the efficiency and the precision for positioning the terminal by the signal processing chip 103 are improved.
In one embodiment, as shown in FIG. 2, the positioning device 10 further includes a first connection member 104 and a second connection member 105. Wherein the first connection part 104 is used for connecting the probe antenna 101 and the signal attenuator 102; the second connection section 105 is for connecting the signal attenuator 102 and the signal processing chip 103.
By way of example, the first connection member 104 and the second connection member 105 may be the same connection member or may be different connection members, which is not limited by the embodiments of the present disclosure. Specifically, the first connection part 104 or the second connection part 105 may be a connection wire in an integrated circuit, or a connection wire.
In the technical scheme provided by the embodiment of the disclosure, the first connecting component 104 and the second connecting component 105 are respectively connected with the probe antenna 101, the signal attenuator 102 and the signal processing chip 103, so that the communication rate among the probe antenna 101, the signal attenuator 102 and the signal processing chip 103 is improved, and further, the data accuracy of positioning the terminal is higher.
In one embodiment, the signal attenuator 102 is configured to attenuate the Wi-Fi search signal with a preset attenuation value to obtain an attenuated Wi-Fi search signal, where the signal strength of the attenuated Wi-Fi search signal is greater than the signal strength of an external signal received when the first connection unit 104 or the second connection unit 105 is used as an antenna.
For example, during initialization, it may be determined that the signal strength of the Wi-Fi search signal sent by the terminal and acquired by the probe antenna 101 and the signal strength of the Wi-Fi search signal received by the positioning device 10 when the first connection part 104 or the second connection part 105 is used as an antenna when the probe antenna 101 is not installed first, and then the preset attenuation value of the signal attenuator 102 is set, so that the signal strength of the attenuated Wi-Fi search signal acquired after the signal attenuator 102 attenuates the Wi-Fi search signal with the preset attenuation value is greater than the signal strength of the external signal received when the first connection part 104 or the second connection part 105 is used as an antenna.
In the technical scheme provided by the embodiment of the disclosure, the Wi-Fi search signal is attenuated by the preset attenuation value signal attenuator 102, so that the finally obtained attenuated Wi-Fi search signal can avoid inputting signals received by the first connecting component 104 and the second connecting component 105 to the signal processing chip 103 while filtering part of noise, high-quality data is provided for positioning the terminal by the signal processing chip 103, and efficiency and precision for positioning the terminal by the signal processing chip 103 are improved.
In one embodiment, as shown in fig. 3, the first connection member 104 includes a first feed line 1041 and the second connection member 105 includes a second feed line 1051. One end of the first feeder 1041 is connected to the probe antenna 101, and the other end is connected to the signal attenuator 102; one end of the second feeder line 1051 is connected to the signal attenuator 102, and the other end is connected to the signal processing chip 103.
Typically, the Wi-Fi search signal that can be detected by the probe antenna 101 has a signal strength between 0 and 100dB, and the signal strength of the external signal that can be received by the first feeder 1041 between the probe antenna 101 and the signal attenuator 102 or the second feeder 1051 between the signal attenuator 102 and the signal processing chip 103 ranges between-70 and-95 dB.
In order to avoid that the signal processing chip 103 uses the signal received by the first feeder 1041 or the second feeder 1051 for positioning the terminal, the signal processing chip 103 may first filter out the attenuated Wi-Fi search signal with a signal strength less than or equal to-70 dB before positioning. Meanwhile, if the signal processing chip 103 is to determine the position of the terminal, the signal strength of the attenuated Wi-Fi search signal for determining the position signal of the terminal needs to be greater than or equal to-67 dB, because if the signal strength of the attenuated Wi-Fi search signal is less than-67 dB, the distance between the terminal and the positioning device 10 acquired by the signal processing chip 103 is far, and it is difficult to determine the relative position between the terminal and the positioning device 10, that is, the attenuated Wi-Fi search signal greater than or equal to-67 dB is an effective signal.
In summary, the preset attenuation value may be set to 3dB, so that the attenuation Wi-Fi search signal with the smallest intensity in the effective signal range is still greater than-70 dB after being attenuated by the signal attenuator 102. In practical application, the signal strength value of the attenuated Wi-Fi search signal is only required to be larger than the signal strength of the external signal received by taking the first feeder 1041 or the second feeder 1051 as an antenna.
Specifically, it is assumed that the terminal position is not changed, and the positioning device 10 collects Wi-Fi search signals sent by the terminal to the outside in a plurality of preset time periods. The signal intensity distribution diagram of Wi-Fi search signals sent to the outside by the terminal in a plurality of preset time periods collected by the positioning device without the signal attenuator 102 is shown in fig. 4, and as can be seen from fig. 4, the intensity fluctuation of Wi-Fi search signals collected by the positioning device without the signal attenuator 102 in different preset time periods is large, the fluctuation difference is about 20dB, the X-axis is time T, and the Y-axis is intensity Q in fig. 4; the signal intensity distribution diagram of Wi-Fi search signals sent to the outside by the terminal in a plurality of preset time periods acquired by the positioning device 10 according to the embodiment of the present disclosure is shown in fig. 5, and as can be seen from fig. 5, after the signal attenuator 102 is added, the intensity fluctuation of Wi-Fi search signals acquired by the positioning device 10 in different preset time periods is reduced, the fluctuation difference is about 10dB, the X-axis is time T, and the Y-axis is intensity Q in fig. 5. It can be seen that the strength of the Wi-Fi search signal sent by the terminal and received by the positioning device 10 added with the signal attenuator 102 in different preset time periods is more stable under the condition that the position of the terminal is not changed.
In the technical scheme provided by the embodiment of the disclosure, the first feeder 1041 and the second feeder 1051 are respectively connected with the probe antenna 101, the signal attenuator 102 and the signal processing chip 103, so that the communication rate among the probe antenna 101, the signal attenuator 102 and the signal processing chip 103 is improved, meanwhile, the preset attenuation value is set to 3dB, and the signal attenuator 102 can attenuate Wi-Fi search signals by adopting 3dB, so that the finally obtained attenuated Wi-Fi search signals can avoid inputting signals received by the first connecting component 104 and the second connecting component 105 to the signal processing chip 103 while filtering part of noise, high-quality data is provided for positioning of the terminal by the signal processing chip 103, and the efficiency and the precision for positioning the terminal by the signal processing chip 103 are improved.
In one embodiment, as shown in fig. 6, a first electronic component 1041a and a first signal shield 1041b are disposed on a first feeder line 1041. The first electronic component 1041a is disposed in the first signal shield 1041b.
In the technical scheme provided by the embodiment of the disclosure, the first electronic element 1041a is arranged in the first signal shielding cover 1041b, so that the influence of the signal received by the first electronic element 1041a on Wi-Fi search signals is avoided, high-quality data is provided for positioning the terminal by the signal processing chip 103, and the efficiency and the precision for positioning the terminal by the signal processing chip 103 are improved.
In one embodiment, as shown in fig. 7, the second feed line 1051 is provided with a second electronic component 1051a and a second signal shield 1051b. The second electronic component 1051a is disposed in a second signal shield 1051b.
In the technical solution provided in the embodiments of the present disclosure, the second electronic component 1051a is disposed in the second signal shielding cover 1051b, so that the influence of the signal received by the second electronic component 1051a on the Wi-Fi search signal is avoided, high-quality data is provided for positioning the terminal by the signal processing chip 103, and efficiency and accuracy of positioning the terminal by the signal processing chip 103 are improved.
The disclosed embodiments also provide a positioning system that includes a plurality of positioning devices 10, where the positioning devices 10 may be any of the positioning devices 10 described above.
For example, during initialization, a plurality of positioning devices 10 may be set at different positions in a room, and the plurality of positioning devices 10 may all receive Wi-Fi search signals sent by a terminal, attenuate the received Wi-Fi search signals, and obtain attenuated Wi-Fi search signals. The positioning devices 10 with smaller acquired attenuated Wi-Fi search signal intensity are removed, the other positioning devices 10 can acquire the distances between different positioning devices 10 and the terminal according to the attenuated Wi-Fi search signal, further acquire the relative positions of different positioning devices 10 and the terminal, and the accurate position of the terminal can be determined according to the relative positions of different positioning devices 10 and the terminal.
In the technical scheme provided by the embodiment of the disclosure, the accurate position of the terminal is obtained through the distances between different positioning devices 10 and the terminal, so that the efficiency and the accuracy of positioning the terminal are improved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The positioning device is characterized by comprising a Wi-Fi probe antenna, a signal attenuator and a signal processing chip;
the Wi-Fi probe antenna is connected with the signal attenuator, and the signal attenuator is connected with the signal processing chip;
the probe antenna is used for receiving Wi-Fi search signals of the terminal;
the signal attenuator is used for attenuating Wi-Fi search signals received by the Wi-Fi probe antenna to filter noise in signals input to the signal processing chip, and acquiring attenuated Wi-Fi search signals;
the signal processing chip is used for determining the position of the terminal according to the attenuated Wi-Fi search signal, and comprises the following steps: the signal processing chip acquires the signal intensity of the attenuated Wi-Fi search signal, inquires the corresponding relation between the signal intensity and the distance, acquires the distance corresponding to the signal intensity of the attenuated Wi-Fi search signal, and determines the relative position of the terminal and the positioning device according to the distance;
the positioning device further comprises a first connecting part and a second connecting part;
the first connecting component is used for connecting the probe antenna and the signal attenuator;
the second connecting component is used for connecting the signal attenuator and the signal processing chip;
the signal strength of the attenuated Wi-Fi search signal is greater than the signal strength of an external signal received when the first connecting component or the second connecting component is used as an antenna.
2. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the signal attenuator is used for attenuating the Wi-Fi search signal by adopting a preset attenuation value to obtain an attenuated Wi-Fi search signal.
3. The apparatus of claim 2, wherein the first connection member comprises a first feed line and the second connection member comprises a second feed line;
one end of the first feeder line is connected with the probe antenna, and the other end of the first feeder line is connected with the signal attenuator;
one end of the second feeder line is connected with the signal attenuator, and the other end of the second feeder line is connected with the signal processing chip.
4. A device according to claim 3, characterized in that the preset attenuation value is 3dB.
5. A device according to claim 3, wherein the first feeder line has a first electronic component and a first signal shield disposed thereon;
the first electronic component is disposed in the first signal shield.
6. A device according to claim 3, wherein the second feed line is provided with a second electronic component and a second signal shield;
the second electronic component is disposed in the second signal shield.
7. A positioning system comprising a plurality of positioning devices, the positioning devices being the positioning device of any one of claims 1 to 6.
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| CN201710791729.9A CN107728108B (en) | 2017-09-05 | 2017-09-05 | Positioning device and system |
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| CN201710791729.9A CN107728108B (en) | 2017-09-05 | 2017-09-05 | Positioning device and system |
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| CN107728108A CN107728108A (en) | 2018-02-23 |
| CN107728108B true CN107728108B (en) | 2023-10-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102870333A (en) * | 2010-02-24 | 2013-01-09 | 华为技术有限公司 | Rejection of RF interferers and noise in a wireless communications transceiver |
| KR20140031580A (en) * | 2012-09-05 | 2014-03-13 | 주식회사 에이디알에프코리아 | Method and apparatus to reduce uplink noise |
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| JP4951262B2 (en) * | 2006-03-31 | 2012-06-13 | 株式会社関電工 | Location identification system using specific low-power radio system |
| KR101436400B1 (en) * | 2012-10-31 | 2014-09-01 | (주)휴빌론 | Method and system for wifi-based indoor positioning, by using electronic map |
| CN105657820B (en) * | 2014-11-14 | 2019-01-29 | 上海诺基亚贝尔股份有限公司 | It is a kind of for positioning the method and device of indoor target UE |
| CN106792506B (en) * | 2016-11-22 | 2021-01-05 | 台州市吉吉知识产权运营有限公司 | WiFi positioning method and server |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102870333A (en) * | 2010-02-24 | 2013-01-09 | 华为技术有限公司 | Rejection of RF interferers and noise in a wireless communications transceiver |
| KR20140031580A (en) * | 2012-09-05 | 2014-03-13 | 주식회사 에이디알에프코리아 | Method and apparatus to reduce uplink noise |
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