CN212410864U

CN212410864U - Radio frequency circuit and terminal equipment

Info

Publication number: CN212410864U
Application number: CN202022165805.5U
Authority: CN
Inventors: 袁野
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-01-26
Anticipated expiration: 2030-09-28

Abstract

The embodiment of the utility model discloses radio frequency circuit and terminal equipment for radio frequency circuit carries out simultaneous reception to L1 frequency channel signal and L5 frequency channel signal through the antenna, and to a great extent has reduced the receiving gain loss of signal, and this radio frequency circuit is handled this L1 frequency channel signal and this L5 frequency channel signal through the treater again, acquires the current position, thereby has effectively improved the accuracy of location. Radio frequency circuit includes antenna and treater, the antenna with the treater is connected, the embodiment of the utility model provides a include: the antenna is used for receiving a first positioning signal and a second positioning signal simultaneously, wherein the first positioning signal belongs to an L1 frequency band, and the second positioning signal belongs to an L5 frequency band; and the processor is used for calculating to obtain the current position according to the first positioning signal and the second positioning signal.

Description

Radio frequency circuit and terminal equipment

Technical Field

The utility model relates to a terminal equipment application especially relates to a radio frequency circuit and terminal equipment.

Background

Global Navigation Satellite System (GNSS) generally refers to all Satellite Navigation systems, such as: the GNSS has already formed a powerful application of global spatial positioning, such as the BeiDou Navigation Satellite System (BDS), the Global Positioning System (GPS), the global Navigation Satellite System (GLONASS), the Galileo Satellite Navigation System (Galileo), and the like. With the rapid development of modern electronic technology, the market has more and more demands on GNSS high-precision positioning functions, including vehicle navigation, building surveying, homeland surveying and mapping, industrial control and other industries.

Currently, many GNSS positioning products in the market mostly adopt a single-frequency circuit scheme or a dual-frequency circuit scheme for positioning. More and more products start to use GNSS of dual-band circuit scheme for positioning, and the dual-band circuit of these GNSS greatly loses the receiving gain when receiving signals of L1 band and signals of L5 band, thereby resulting in inaccurate positioning.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a radio frequency circuit and terminal equipment for radio frequency circuit carries out simultaneous reception to L1 frequency channel signal and L5 frequency channel signal through the antenna, and to a great extent has reduced the receiving gain loss of signal, and this radio frequency circuit is handled this L1 frequency channel signal and this L5 frequency channel signal through the treater again, acquires the current position, thereby has effectively improved the accuracy of location.

In view of this, a first aspect of the present invention provides a radio frequency circuit, which may include an antenna and a processor, where the antenna is connected to the processor;

the antenna is used for simultaneously receiving a first positioning signal and a second positioning signal, wherein the first positioning signal belongs to an L1 frequency band, and the second positioning signal belongs to an L5 frequency band;

the processor is used for calculating and obtaining the current position according to the first positioning signal and the second positioning signal.

Optionally, the antennas include an L1 band antenna and an L5 band antenna; the L1 frequency band antenna is used for receiving a first positioning signal; meanwhile, the L5 frequency band antenna is used for receiving a second positioning signal.

Optionally, the radio frequency circuit further includes a first-order filter, and the antenna is connected to the processor through the first-order filter, or the L1 band antenna and the L5 band antenna are connected to the processor through the first-order filter; the primary filter is used for filtering the first positioning signal to obtain a first filtering signal, and filtering the second positioning signal to obtain a second filtering signal; the processor is specifically configured to calculate a current position according to the first filtered signal and the second filtered signal.

Optionally, the first-stage filter includes a first filter and a second filter, and the antenna is connected to the processor through the first filter and the second filter, or the L1 band antenna is connected to the processor through the first filter and the L5 band antenna is connected to the processor through the second filter; the first filter is used for filtering the first positioning signal to obtain a first filtering signal; the second filter is configured to filter the second positioning signal to obtain a second filtered signal.

Optionally, the radio frequency circuit further includes a first amplifier and a second amplifier, and the first-stage filter is connected to the processor through the first amplifier and the second amplifier, or the first filter is connected to the processor through the first amplifier and the second filter is connected to the processor through the second amplifier; the first amplifier is used for amplifying the first filtering signal to obtain a first amplified signal; the second amplifier is used for amplifying the second filtered signal to obtain a second amplified signal; the processor is specifically configured to calculate a current position according to the first amplified signal and the second amplified signal.

Optionally, the radio frequency circuit further includes a third filter and a fourth filter, the first amplifier is connected to the processor through the third filter, and the second amplifier is connected to the processor through the fourth filter; the third filter is configured to filter the first amplified signal to obtain a third filtered signal; the fourth filter is configured to filter the second amplified signal to obtain a fourth filtered signal; the processor is specifically configured to calculate a current position according to the third filtered signal and the fourth filtered signal.

Optionally, the radio frequency circuit further includes a first antenna matching circuit, and the antenna is connected to the processor through the first antenna matching circuit; the first antenna matching circuit is used for transmitting the first positioning signal and the second positioning signal to the processor.

Optionally, the radio frequency circuit may include a processor, and the processor is further configured to output the current position.

Optionally, the radio frequency circuit further includes a display, and the display is connected to the processor; the processor is specifically configured to send the current location to the display; the display is used for displaying the current position.

The embodiment of the utility model provides a second aspect provides a terminal equipment, can include: the embodiment of the utility model provides a first aspect the radio frequency circuit.

According to the technical solution provided by the utility model, the embodiment of the utility model has the following advantage:

in the embodiment of the application, the radio frequency circuit comprises an antenna and a processor, wherein the antenna is connected with the processor; the antenna is used for receiving a first positioning signal and a second positioning signal simultaneously, wherein the first positioning signal belongs to an L1 frequency band, and the second positioning signal belongs to an L5 frequency band; and the processor is used for calculating to obtain the current position according to the first positioning signal and the second positioning signal. Therefore, the radio frequency circuit receives the L1 frequency band signal and the L5 frequency band signal simultaneously through the antenna, the receiving gain loss of the signals is reduced to a great extent, the radio frequency circuit processes the L1 frequency band signal and the L5 frequency band signal through the processor, the current position is obtained, and the positioning accuracy is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed 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 it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1a is a schematic diagram of an embodiment of a radio frequency circuit according to an embodiment of the present invention;

fig. 1b is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1c is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1d is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1e is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1f is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1g is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1h is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1i is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1j is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1k is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1l is a schematic diagram of another embodiment of the rf circuit according to an embodiment of the present invention;

fig. 1m is a schematic diagram of another embodiment of the rf circuit in the embodiment of the present invention;

fig. 1n is a schematic diagram of another embodiment of the rf circuit in the embodiment of the present invention;

FIG. 2 is a diagram of an embodiment of a terminal device in an embodiment of the present invention;

fig. 3 is a schematic diagram of an embodiment of a positioning method in an embodiment of the present invention;

fig. 4 is a schematic diagram of another embodiment of the positioning method in the embodiment of the present invention;

fig. 5 is a schematic diagram of another embodiment of the positioning method in the embodiment of the present invention;

fig. 6 is a schematic diagram of another embodiment of the positioning method in the embodiment of the present invention;

fig. 7 is a schematic diagram of another embodiment of the positioning method in the embodiment of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be described below 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 utility model provides an embodiment, all should belong to the utility model discloses the scope of protection.

It is understood that the terminal devices according to the embodiments of the present invention may include a general handheld electronic terminal device, such as a mobile phone, a smart phone, a portable terminal, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP) device, a notebook Computer, a notebook (Note Pad), a Wireless Broadband (Wibro) terminal, a tablet Computer (PC), a smart PC, a Point of Sales (POS), a car Computer, and the like.

The terminal device may also comprise a wearable device. The wearable device may be worn directly on the user or a portable electronic device integrated into the user's clothing or accessory. Wearable equipment is not only a hardware equipment, can realize powerful intelligent function through software support and data interaction, high in the clouds interaction more, for example: the system has the functions of calculation, positioning and alarming, and can be connected with a mobile phone and various terminals. Wearable devices may include, but are not limited to, wrist-supported watch types (e.g., wrist watches, wrist-supported products), foot-supported shoes types (e.g., shoes, socks, or other leg-worn products), head-supported Glass types (e.g., glasses, helmets, headbands, etc.), and various types of non-mainstream products such as smart clothing, bags, crutches, accessories, and the like.

The following further describes the technical solution of the present invention by way of an embodiment, as shown in fig. 1a, which is a schematic diagram of an embodiment of a radio frequency circuit in an embodiment of the present invention, and the technical solution of the present invention may include: the antenna 101 is connected with the processor 102, and the antenna 101 is connected with the processor 102;

an antenna 101 for simultaneously receiving a first positioning signal belonging to the L1 band and a second positioning signal belonging to the L5 band;

and the processor 102 is configured to calculate a current position according to the first positioning signal and the second positioning signal.

Optionally, the antenna 101 in the rf circuit may include an L1 frequency band antenna 1011 and an L5 frequency band antenna 1012, as shown in fig. 1b, which is a schematic diagram of another embodiment of the rf circuit in the embodiment of the present invention.

The L1 band antenna 1011 is used for receiving a first positioning signal, while the L5 band antenna 1012 is used for receiving a second positioning signal.

It can be understood that the radio frequency circuit receives the first positioning signal and the second positioning signal simultaneously through the antenna 101, and the antenna 101 may be a single antenna shared by the L1 frequency band and the L5 frequency band, or the L1 frequency band antenna 1011 and the L5 frequency band antenna 1012, that is, two independent antennas. In radio frequency circuits, this provides flexibility in the design of the antenna, which is no longer singular.

Optionally, the rf circuit may further include a first-order filter 103, as shown in fig. 1c, which is a schematic diagram of another embodiment of the rf circuit in the embodiment of the present invention, in fig. 1c, the antenna 101 is connected to the processor 102 through the first-order filter 103. As shown in fig. 1d, which is a schematic diagram of another embodiment of the rf circuit in the embodiment of the present invention, in fig. 1d, the L1 band antenna 1011 and the L5 band antenna 1012 are connected to the processor 102 through the first filter 103.

A first-stage filter 103, configured to filter the first positioning signal to obtain a first filtered signal, and filter the second positioning signal to obtain a second filtered signal;

the processor 102 is specifically configured to calculate a current position according to the first filtered signal and the second filtered signal.

Optionally, the first-stage filter 103 includes a first filter 1031 and a second filter 1032. As shown in fig. 1e, which is another embodiment of the rf circuit in the embodiment of the present invention, as shown in fig. 1e, the antenna 101 is connected to the processor 102 through the first filter 1031 and the second filter 1032. As shown in fig. 1f, which is another embodiment of the rf circuit according to the embodiment of the present invention, as shown in fig. 1f, the L1 band antenna 1011 is connected to the processor 102 through the first filter 1031, and the L5 band antenna 1012 is connected to the processor 102 through the second filter 1032.

A first filter 1031, configured to filter the first positioning signal to obtain a first filtered signal;

a second filter 1032 is configured to filter the second positioning signal to obtain a second filtered signal.

Optionally, the rf circuit may further include a first amplifier 104 and a second amplifier 105, as shown in fig. 1g, which is another embodiment of the rf circuit in the embodiment of the present invention, and as shown in fig. 1g, the first-stage filter 103 is connected to the processor 102 through the first amplifier 104 and the second amplifier 105. As shown in fig. 1h, which is another embodiment of the rf circuit in the embodiment of the present invention, as shown in fig. 1h, the first filter 1031 is connected to the processor 102 through the first amplifier 104, and the second filter 1032 is connected to the processor 102 through the second amplifier 105.

A first amplifier 104, configured to amplify the first filtered signal to obtain a first amplified signal;

a second amplifier 105, configured to amplify the second filtered signal to obtain a second amplified signal;

the processor 102 is specifically configured to calculate a current position according to the first amplified signal and the second amplified signal.

Optionally, the radio frequency circuit may further include a third filter 106 and a fourth filter 107, as shown in fig. 1i, which is another embodiment of the radio frequency circuit in the embodiment of the present invention, as shown in fig. 1i, the first amplifier 104 is connected to the processor 102 through the third filter 106, and the second amplifier 105 is connected to the processor 102 through the fourth filter 107.

A third filter 106, configured to filter the first amplified signal to obtain a third filtered signal;

a fourth filter 107, configured to filter the second amplified signal to obtain a fourth filtered signal;

the processor 102 is specifically configured to calculate a current position according to the third filtered signal and the fourth filtered signal.

Optionally, the processor 102 in the rf circuit is further configured to output the current position.

Optionally, the rf circuit further includes a display 108, as shown in fig. 1j, which is a schematic diagram of another embodiment of the rf circuit in the embodiment of the present invention, as shown in fig. 1j, the display 108 is connected to the processor 102;

a processor 102, specifically configured to send the current location to the display;

a display 108 for displaying the current position.

It should be noted that, in the embodiment of the present invention, the radio frequency circuits shown in fig. 1a to fig. 1j may be combined with each other, and the obtained radio frequency circuit is also within the protection scope of the present invention, and as shown in fig. 1k and fig. 1l, for example, is a schematic diagram of another embodiment of the radio frequency circuit in the embodiment of the present invention. Optionally, in the radio frequency circuits shown in fig. 1a to 1i, matching circuits may be provided between the antenna and the processor, between the antenna and the filter, between the filter and the processor, between the filter and the amplifier, and/or between the amplifier and the processor. Illustratively, as shown in fig. 1m, 1n, the schematic diagram of another embodiment of the radio frequency circuit in the embodiment of the present invention.

It should be understood that, in the radio frequency circuits shown in fig. 1a to 1n in the embodiments of the present invention, the flow directions of the arrows do not correspond to one-to-one correspondence with the electrical components in the physical device, but only indicate the transmission directions of the positioning signals.

As shown in fig. 2, fig. 2 is a schematic diagram of an embodiment of a terminal device in the embodiment of the present invention, which may include: in an embodiment of the present invention, the radio frequency circuit described in any one of fig. 1a to 1 n.

As shown in fig. 3, which is a schematic diagram of an embodiment of a positioning method in an embodiment of the present invention, the method embodiment is applied to a radio frequency circuit, the radio frequency circuit includes an antenna and a processor, and the method may include:

301. the first positioning signal and the second positioning signal are simultaneously received by an antenna.

The first positioning signal belongs to the L1 band, and the second positioning signal belongs to the L5 band.

It is understood that the antenna is a single antenna shared by the L1 frequency band and the L5 frequency band. The antenna is used for simultaneously receiving a first positioning signal in an L1 frequency band and a second positioning signal in an L5 frequency band.

Optionally, the receiving, by the radio frequency circuit, the first positioning signal and the second positioning signal simultaneously through the antenna may include: the radio frequency circuit receives a first positioning signal through the L1 frequency band antenna, and simultaneously receives a second positioning signal through the L5 frequency band antenna.

It is understood that the L1 band antenna is a single antenna and the L5 band antenna is a single antenna, i.e., the L1 band antenna and the L5 band antenna are two separate antennas. The L1 band antenna is operative to receive a first positioning signal in the L1 band, and the L5 band antenna is operative to receive a second positioning signal in the L5 band.

302. And calculating to obtain the current position according to the first positioning signal and the second positioning signal through a processor.

Optionally, the calculating, by the radio frequency circuit, the current position according to the first positioning signal and the second positioning signal by the processor may include: the radio frequency circuit sends the first positioning signal and the second positioning signal to a processor through a first matching circuit; the radio frequency circuit calculates to obtain the current position according to the first positioning signal and the second positioning signal through the processor.

Optionally, the calculating, by the radio frequency circuit, the current position according to the first positioning signal and the second positioning signal by the processor may include: the radio frequency circuit sends the first positioning signal to a processor through a second matching circuit, and sends the second positioning signal to the processor through a third matching circuit; the radio frequency circuit calculates to obtain the current position according to the first positioning signal and the second positioning signal through a processor.

It can be understood that, after receiving the two positioning signals through the processor, the radio frequency circuit performs frequency conversion, demodulation, decoding and other processing on the first positioning signal corresponding to the L1 frequency band, and after converting the electrical signal of the first positioning signal into a digital signal through the processing process, the radio frequency circuit obtains the current position of the terminal device through position operation, and the second positioning signal corresponding to the L5 frequency band helps the multipath identification and multipath elimination of the first positioning signal. The information of the current location may include latitude and longitude information.

The position calculation means that the GNSS chip receives position information of different satellites by itself, and calculates the distance from the GNSS chip to each satellite by itself (the distance calculated by the GNSS chip is called pseudo distance, which is calculated and is not a real distance). After the GNSS chip obtains the pseudo-ranges of the GNSS chip from each satellite, the current position of the GNSS chip can be calculated by resolving the spatial position matrix, that is, the current longitude and latitude coordinates are calculated. In the operation process, the digital signals are processed, calculated and output. Firstly, after receiving an L5 frequency band signal, calculating the identification of a multipath interference signal, and calculating which satellites have the multipath interference signal; secondly, the satellite information of the multipath interference signals is informed to an operation unit in an L1 frequency band signal, the L1 frequency band signal with the multipath interference is eliminated by combining the L1 frequency band signal, the position operation is carried out on the rest L1 frequency band signal, and the positioning result is output, namely the positioning longitude and latitude result can be output.

It is understood that in most positioning products, the satellite signal in the L1 frequency band is the satellite positioning signal with the highest frequency. The radio frequency circuit only needs to send the positioning signals to the processor after receiving the positioning signals of a plurality of satellites (generally, 4 or more satellites) in the L1 frequency band, and a chip in the processor performs position operation on the positioning signals to calculate a position (not a final output current position). The L5 frequency band is a signal of another frequency point, the transmission code rate of the L5 frequency band is 10 times faster than that of the L1 frequency band, and the precision of the L5 frequency band is 10 times higher than that of the L1 frequency band. The L5 frequency band has the function of better identifying multipath signals (the multipath signals have great influence on positioning accuracy), so that the L5 frequency band can effectively identify the multipath signals according to the signal characteristics of the L5 frequency band, and further the L1 frequency band is helped to identify the multipath signals of the signals, eliminate the multipath signals and enable the final positioning to be more accurate. It should be noted that the L5 band signal itself cannot be independently located, and needs to be accurately located by assisting the L1 band signal in multipath identification and multipath elimination.

When the radio frequency circuit detects that an L1 frequency band signal and an L5 frequency band signal exist at the same time, the antenna receives the L1 frequency band signal and the L5 frequency band signal, the chip processes the L1 frequency band signal and the L5 frequency band signal, the positioning is successfully carried out, and at the moment, the chip is in a continuous and successful positioning state. However, for some reasons, the L1 band signal is very weak or suddenly interrupted, the L5 band signal remains normal, and the chip can continue to be positioned continuously under the condition of only the L5 band signal.

Optionally, the processor may comprise a chip. For example: the chip may be a GNSS chip.

Optionally, the processor may include a platform.

It can be understood that the antenna matching circuit involved in this embodiment is a conventional signal matching function, and aims to better match and transmit signals between two adjacent stages of components, so as to minimize waste of energy during matching and transmission of signals.

In the embodiment of the present invention, the rf circuit receives a first positioning signal corresponding to the L1 frequency band and a second positioning signal corresponding to the L5 frequency band through the antenna; the radio frequency circuit processes the received first positioning signal and the second positioning signal through the processor to obtain the current position. Therefore, the radio frequency circuit receives the L1 frequency band signal and the L5 frequency band signal simultaneously through the antenna, the receiving gain loss of the signals is reduced to a great extent, the radio frequency circuit processes the L1 frequency band signal and the L5 frequency band signal through the processor, the current position is obtained, and the positioning accuracy is effectively improved.

As shown in fig. 4, which is a schematic diagram of another embodiment of a positioning method in an embodiment of the present invention, the embodiment of the method is applied to a radio frequency circuit, the radio frequency circuit includes an antenna and a processor, the radio frequency circuit further includes a first-order filter, and the method may include:

401. the first positioning signal and the second positioning signal are simultaneously received by an antenna.

It should be noted that step 401 is similar to step 301 shown in fig. 3 in this embodiment, and is not described again here.

402. And filtering the first positioning signal through a primary filter to obtain a first filtering signal, and filtering the second positioning signal to obtain a second filtering signal.

Optionally, the filtering, by the radio frequency circuit, the first positioning signal through a first-stage filter to obtain a first filtered signal, and filtering the second positioning signal to obtain a second filtered signal, which may include: the radio frequency circuit sends the first positioning signal to a primary filter through a first matching circuit, and sends the second positioning signal to the primary filter; the radio frequency circuit filters the first positioning signal through the primary filter to obtain a first filtering signal, and filters the second positioning signal to obtain a second filtering signal.

It will be appreciated that the first order filter comprises a first filter and a second filter, the first order filter being one filter. The first filter is operable to simultaneously bandwidth filter the received first positioning signal and the second positioning signal. The bandwidth may be 2MHz, or may be other GNSS-compliant bandwidth, and is not limited herein.

Optionally, the filtering, by the radio frequency circuit, the first positioning signal through a first-stage filter to obtain a first filtered signal, and filtering the second positioning signal to obtain a second filtered signal, which may include: the radio frequency circuit filters the first positioning signal through a first filter to obtain a first filtering signal, and the radio frequency circuit filters the first positioning signal through a second filter to obtain a second filtering signal.

Optionally, the filtering, by the radio frequency circuit, the first positioning signal through a first filter to obtain a first filtered signal, and the filtering, by the radio frequency circuit, the first positioning signal through a second filter to obtain a second filtered signal may include: the radio frequency circuit sends the first positioning signal to the first filter through the second antenna matching circuit, and the radio frequency circuit sends the first positioning signal to the second filter through the third antenna matching circuit; the radio frequency circuit filters the first positioning signal through the first filter to obtain a first filtering signal, and the radio frequency circuit filters the first positioning signal through the second filter to obtain a second filtering signal.

It will be appreciated that the first filter and the second filter are two separate filters. The first filter bandwidth filters the received first positioning signal and the second filter bandwidth filters the received second positioning signal. The two filters can pass the useful frequency points and filter useless interference signals except the useful frequency points.

403. And calculating to obtain the current position according to the first filtering signal and the second filtering signal through a processor.

Optionally, the calculating, by the radio frequency circuit according to the first filtered signal and the second filtered signal, a current position may include: the radio frequency circuit sends the first filtering signal to a processor through a fourth antenna matching circuit, and sends the second filtering signal to the processor through a fifth antenna matching circuit; the radio frequency circuit calculates and obtains the current position according to the first filtering signal and the second filtering signal through the processor.

It can be understood that, after the radio frequency circuit receives the two filtered signals through the processor, the radio frequency circuit performs frequency conversion, demodulation, decoding and other processing on the first filtered signal corresponding to the L1 frequency band, and after the radio frequency circuit converts the electric signal of the first filtered signal into a digital signal through the processing process, the current position of the terminal device is obtained through operation, and the second filtered signal corresponding to the L5 frequency band helps the multipath identification and multipath elimination of the first filtered signal. The information of the current location may include latitude and longitude information.

In the embodiment of the present invention, the rf circuit receives a first positioning signal corresponding to the L1 frequency band and a second positioning signal corresponding to the L5 frequency band through the antenna; the radio frequency circuit filters the received first positioning signal and the second positioning signal through a first-stage filter; and processing the filtered first filtering signal and the second filtering signal through a processor to obtain the current position. Therefore, the radio frequency circuit receives the L1 frequency band signal and the L5 frequency band signal simultaneously through the antenna, the receiving gain loss of the signals is reduced to a great extent, the radio frequency circuit processes the L1 frequency band signal and the L5 frequency band signal through the processor, the useful frequency points are allowed to pass through, useless interference signals except the useful frequency points are filtered, the current position is obtained, and the positioning accuracy is effectively improved.

As shown in fig. 5, for another embodiment of the positioning method according to the embodiment of the present invention, the method is applied to a radio frequency circuit, the radio frequency circuit includes an antenna and a processor, the radio frequency circuit further includes a first-order filter, a first amplifier, a second amplifier, a third filter and a fourth filter, and the method may include:

501. the first positioning signal and the second positioning signal are simultaneously received by an antenna.

The first positioning signal belongs to an L1 frequency band, and the second positioning signal belongs to an L5 frequency band.

502. And filtering the first positioning signal through a primary filter to obtain a first filtering signal, and filtering the second positioning signal to obtain a second filtering signal.

It should be noted that, the steps 501-502 are similar to the steps 401-402 shown in fig. 4 in this embodiment, and are not described herein again.

503. And amplifying the first filtered signal through a first amplifier to obtain a first amplified signal, and amplifying the second filtered signal through a second amplifier to obtain a second amplified signal.

Optionally, the amplifying the first filtered signal by the radio frequency circuit through a first amplifier to obtain a first amplified signal, and the amplifying the second filtered signal by a second amplifier to obtain a second amplified signal, may include: the radio frequency circuit sends the first filtering signal to the first amplifier through the fourth wireless matching circuit, and sends the second filtering signal to the second amplifier through the fifth wireless matching circuit; the radio frequency circuit amplifies the first filtering signal through the first amplifier to obtain a first amplified signal, and amplifies the second filtering signal through the second amplifier to obtain a second amplified signal.

It will be appreciated that the radio frequency circuit achieves power consumption optimisation by control of the first amplifier enable signal and control of the second amplifier enable signal. The specific control mode is as follows: when the enable signal of the amplifier is on, the amplifier consumes power; in the case where the enable signal of the amplifier is off, the amplifier consumes no power, which makes it possible to achieve a balance between power consumption and positioning performance. In the prior art, amplifier circuits have been available that perform power consumption optimization in this manner. The opening time and the closing time can be configured by software according to needs or user-defined configuration, and the specific time configuration mode is not particularly limited.

504. And calculating to obtain the current position according to the first amplified signal and the second amplified signal through a processor.

Optionally, the calculating, by the radio frequency circuit, a current position according to the first amplified signal and the second amplified signal may include: the radio frequency circuit sends the first amplified signal to a processor through a sixth antenna matching circuit, and sends the second amplified signal to the processor through a seventh antenna matching circuit; the radio frequency circuit calculates to obtain the current position according to the first amplified signal and the second amplified signal through the processor radio frequency circuit.

It can be understood that, after the radio frequency circuit receives the two amplified signals through the antenna, the radio frequency circuit performs processing such as frequency conversion, demodulation and decoding on the first amplified signal corresponding to the L1 frequency band, and after the radio frequency circuit converts the electrical signal of the first amplified signal into a digital signal through the processing process, the current position of the terminal device is obtained through operation, and the second amplified signal corresponding to the L5 frequency band helps multipath identification and multipath elimination of the first amplified signal. The information of the current location may include latitude and longitude information.

In the embodiment of the present invention, the rf circuit receives a first positioning signal corresponding to the L1 frequency band and a second positioning signal corresponding to the L5 frequency band through the antenna; the radio frequency circuit filters the received first positioning signal and the second positioning signal through a filter; amplifying the filtered first and second filtered signals by an amplifier; and processing the amplified first amplified signal and the amplified second amplified signal through a processor to obtain the current position. Therefore, the radio frequency circuit receives the L1 frequency band signal and the L5 frequency band signal simultaneously through the antenna, the receiving gain loss of the signals is reduced to a great extent, the radio frequency circuit processes the L1 frequency band signal and the L5 frequency band signal through the processor, the useful frequency points are allowed to pass through, useless interference signals except the useful frequency points are filtered, power consumption optimization is achieved, the current position is obtained, and the positioning accuracy is effectively improved.

As shown in fig. 6, for another embodiment of the positioning method according to the embodiment of the present invention, the method is applied to a radio frequency circuit, the radio frequency circuit includes an antenna and a processor, the radio frequency circuit further includes a first-order filter, a first amplifier, a second amplifier, a third filter and a fourth filter, and the method may include:

601. the first positioning signal and the second positioning signal are simultaneously received by an antenna.

602. And filtering the first positioning signal through a primary filter to obtain a first filtering signal, and filtering the second positioning signal to obtain a second filtering signal.

603. And amplifying the first filtered signal through a first amplifier to obtain a first amplified signal, and amplifying the second filtered signal through a second amplifier to obtain a second amplified signal.

It should be noted that step 601-603 is similar to step 501-503 shown in fig. 5 in this embodiment, and is not described herein again.

604. And filtering the first amplified signal through a third filter to obtain a third filtered signal, and filtering the second amplified signal through a fourth filter to obtain a fourth filtered signal.

Optionally, the filtering, by the radio frequency circuit, the first amplified signal through a third filter to obtain a third filtered signal, and filtering, by a fourth filter, the second amplified signal to obtain a fourth filtered signal, may include: the radio frequency circuit sends the first amplified signal to a third filter through the sixth antenna matching circuit, and sends the second amplified signal to a fourth filter through a seventh antenna matching circuit; the radio frequency circuit filters the first amplified signal through the third filter to obtain a third filtered signal, and filters the second amplified signal through the fourth filter to obtain a fourth filtered signal.

It will be appreciated that the third filter and the fourth filter may be referred to as a second order filter, which is two separate filters. The second-order filter has The same electrical characteristic parameters as The first-order filter, and is used for further filtering useless interference signals except for useful frequency points, so that The filtering effect is enhanced, and The received useful signals are purer and are less interfered by other signals such as a second Generation network communication technology (The 2nd Generation, 2G), a third Generation network communication technology (The 3rd Generation, 3G), a fourth Generation network communication technology (The 4th Generation, 4G), a fifth Generation network communication technology (The 5th Generation, 5G) or wireless fidelity (WiFi).

605. And calculating to obtain the current position according to the third filtering signal and the fourth filtering signal through a processor.

Optionally, the calculating, by the radio frequency circuit according to the third filtered signal and the fourth filtered signal, a current position may include: the radio frequency circuit sends the third filtered signal to a processor through an eighth antenna matching circuit, and sends the fourth filtered signal to the processor through a ninth antenna matching circuit; and the radio frequency circuit calculates to obtain the current position according to the third filtering signal and the fourth filtering signal through the processor.

It can be understood that, after receiving the two filtered signals through the antenna, the radio frequency circuit performs frequency conversion, demodulation, decoding and other processing on the third filtered signal corresponding to the L1 frequency band, and after converting the electrical signal of the third filtered signal into a digital signal through the processing process, the radio frequency circuit obtains the current position of the terminal device through operation, and the fourth filtered signal corresponding to the L5 frequency band helps the third filtered signal to perform multipath identification and multipath elimination. The information of the current location may include latitude and longitude information.

In the embodiment of the present invention, the rf circuit receives a first positioning signal corresponding to the L1 frequency band and a second positioning signal corresponding to the L5 frequency band through the antenna; the radio frequency circuit filters the received first positioning signal and the second positioning signal through a filter; amplifying the filtered first and second filtered signals by an amplifier; filtering the amplified first amplified signal and the amplified second amplified signal again through a secondary filter; and processing the re-filtered third filtering signal and the re-filtered fourth filtering signal by the processor to obtain the current position. Therefore, the radio frequency circuit receives the L1 frequency band signal and the L5 frequency band signal simultaneously through the antenna, the receiving gain loss of the signals is reduced to a great extent, the radio frequency circuit processes the L1 frequency band signal and the L5 frequency band signal through the processor, the useful frequency points are allowed to pass through, useless interference signals except the useful frequency points are filtered, power consumption optimization is achieved, the filtering effect is enhanced, the received useful signals are purer, the current position is further acquired, and the positioning accuracy is effectively improved.

As shown in fig. 7, which is a schematic diagram of another embodiment of a positioning method in an embodiment of the present invention, the method embodiment is applied to a radio frequency circuit, the radio frequency circuit includes an antenna and a processor, and the method may include:

701. the first positioning signal and the second positioning signal are simultaneously received by an antenna.

702. And calculating to obtain the current position according to the first positioning signal and the second positioning signal through a processor.

It should be noted that step 701-702 is similar to step 301-302 shown in fig. 3 in this embodiment, and is not described herein again.

703. And outputting the current position.

Optionally, the outputting the current position may include, but is not limited to, the following implementation manners:

implementation mode 1: the radio frequency circuit sends the current position to a display through the processor, and the display displays the current position.

Implementation mode 2: the radio frequency circuit sends the current position to the platform through the processor, and the current position is displayed on a screen in the form of pictures, animations or data.

Implementation mode 3: the radio frequency circuit sends the current position to the platform through the processor, and outputs the current position in a voice broadcasting mode.

It can be understood that the platform refers to a main Control chip and a functional body in a positioning product, such as a Central Processing Unit (CPU) chip of a mobile phone and a Micro Control Unit (MCU) microprocessor chip of a positioner, and the main Control chips process and transmit positioning information to a user. From the technical point of view, the positioning chip outputs a bottom layer of calculated position information, how the position information is transmitted to a user, and the middle process is the concept of the platform and the function of the platform.

In the embodiment of the present invention, the rf circuit receives a first positioning signal corresponding to the L1 frequency band and a second positioning signal corresponding to the L5 frequency band through the antenna; the radio frequency circuit processes the received first positioning signal and the second positioning signal through the chip to obtain the current position. Therefore, the radio frequency circuit receives the L1 frequency band signal and the L5 frequency band signal simultaneously through the antenna, the loss of receiving gain of the signals is reduced to a great extent, the radio frequency circuit processes the L1 frequency band signal and the L5 frequency band signal through the processor, the current position is obtained, the positioning accuracy is effectively improved, the current position is output, and a user can know the information of the current position of the user conveniently.

It should be noted that step 703 in fig. 7 in this embodiment may also be combined with any one of the solutions shown in fig. 4 to 6 in this embodiment and implemented, so as to output the current position, so that the user can know the information of the current position where the user is located. The embodiments implemented by combining are also within the protection scope of the present invention, and are not described herein again.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present invention are all or partially performed when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A radio frequency circuit, comprising an antenna and a processor, the antenna and the processor being connected;

the antenna is used for receiving a first positioning signal and a second positioning signal simultaneously, wherein the first positioning signal belongs to an L1 frequency band, and the second positioning signal belongs to an L5 frequency band;

and the processor is used for calculating to obtain the current position according to the first positioning signal and the second positioning signal.

2. The radio frequency circuit according to claim 1, wherein the antenna comprises an L1 band antenna and an L5 band antenna;

the L1 frequency band antenna is used for receiving a first positioning signal; at the same time, the user can select the desired position,

and the L5 frequency band antenna is used for receiving a second positioning signal.

3. The radio frequency circuit according to claim 1 or 2, wherein the radio frequency circuit further comprises a first-order filter, and the antenna is connected to the processor through the first-order filter, or the L1 band antenna and the L5 band antenna are connected to the processor through the first-order filter;

the primary filter is used for filtering the first positioning signal to obtain a first filtering signal, and filtering the second positioning signal to obtain a second filtering signal;

the processor is specifically configured to calculate a current position according to the first filtered signal and the second filtered signal.

4. The radio frequency circuit according to claim 3, wherein the first-order filter includes a first filter and a second filter, and the antenna is connected to the processor through the first filter and the second filter, or wherein the L1 band antenna is connected to the processor through the first filter and the L5 band antenna is connected to the processor through the second filter;

the first filter is used for filtering the first positioning signal to obtain a first filtering signal;

the second filter is configured to filter the second positioning signal to obtain a second filtered signal.

5. The RF circuit of claim 4, further comprising a first amplifier and a second amplifier, wherein the first stage filter is coupled to the processor through the first amplifier and the second amplifier, or wherein the first filter is coupled to the processor through the first amplifier and the processor and the second filter is coupled to the processor through the second amplifier;

the first amplifier is used for amplifying the first filtering signal to obtain a first amplified signal;

the second amplifier is used for amplifying the second filtered signal to obtain a second amplified signal;

the processor is specifically configured to calculate a current position according to the first amplified signal and the second amplified signal.

6. The radio frequency circuit of claim 5, further comprising a third filter and a fourth filter, the first amplifier being coupled to the processor through the third filter, the second amplifier being coupled to the processor through the fourth filter;

the third filter is configured to filter the first amplified signal to obtain a third filtered signal;

the fourth filter is configured to filter the second amplified signal to obtain a fourth filtered signal;

the processor is specifically configured to calculate a current position according to the third filtered signal and the fourth filtered signal.

7. The radio frequency circuit of claim 1, further comprising a first antenna matching circuit, the antenna connected to the processor through the first antenna matching circuit;

the first antenna matching circuit is configured to transmit the first positioning signal and the second positioning signal to the processor.

8. The radio frequency circuit of claim 1, further comprising:

the processor is further configured to output the current position.

9. The radio frequency circuit of claim 8, further comprising a display, the display coupled to the processor;

the processor is specifically configured to send the current location to the processor;

the display is used for displaying the current position.

10. A terminal device, characterized in that it comprises a radio frequency circuit according to any one of claims 1-9.