CN111294076A - Radio frequency signal transmission method and system - Google Patents
Radio frequency signal transmission method and system Download PDFInfo
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- CN111294076A CN111294076A CN202010103098.9A CN202010103098A CN111294076A CN 111294076 A CN111294076 A CN 111294076A CN 202010103098 A CN202010103098 A CN 202010103098A CN 111294076 A CN111294076 A CN 111294076A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
Abstract
The application discloses a radio frequency signal transmission method, which comprises the following steps: the processor sends a wireless signal to the antenna through a first channel so as to transmit data through the first channel; when the processor detects that a first signal between the processor and the antenna becomes poor, switching to a second channel to transmit data through the second channel. Compared with the prior art, the method has the following beneficial effects: when the wireless module works, if the module MCU processing unit detects the network signal deviation of the current wireless local area network, another antenna scheme can be tried, so that the current signal strength is improved. When the module is arranged in the later period, the problem of signal improvement when the module enters partial space dead angle or the module is connected with a gateway/router to cause signal shielding due to the change of the environment is solved.
Description
Technical Field
The application relates to the field of network data transmission, in particular to a radio frequency signal transmission method.
Background
The existing universal wireless module is only provided with one antenna, and the antenna is printed on a PCB or is externally arranged in a FPC/ceramic antenna mode. This has the disadvantage that the directivity requirements for the antennas on the sub-devices are high: when the directivity of the antenna is made not good, if there is a situation such as physical obstruction in the communication direction of the sub-device and the gateway/router when the sub-device is arranged, the communication quality may be degraded very significantly or even be offline.
Disclosure of Invention
The present application mainly aims to provide a radio frequency signal transmission method, including:
the processor sends a wireless signal to the antenna through a first channel so as to transmit data through the first channel;
when the processor detects that a first signal between the processor and the antenna becomes poor, switching to a second channel to transmit data through the second channel.
Optionally, the second channel comprises:
a signal enhancement portion proximate to the antenna;
one end of the switch is connected with the processor, and the other end of the selection switch is connected with the signal enhancement part;
and the grounding network is connected with the signal enhancement part.
Optionally, the signal enhancement portion is a copper sheet.
Optionally, the processor detects that the first signal variation is: the processor detects that the first signal value is smaller than a preset threshold value and judges that the first signal becomes poor.
Optionally, the selection switch is a single-pole single-throw radio frequency switch.
Optionally, when the processor detects that the first signal between the processor and the antenna is degraded, switching to the second channel comprises:
when the processor gets worse, recording the current signal strength as a first signal strength and recording the control signal level as a first level;
the processor sends a control signal to the selector switch, so that the single-pole single-throw radio frequency switch is changed from a first state of current disconnection to a second state of closing, the level of the control signal is changed to be a second level, the signal enhancement part is connected with the grounding network, and the current signal intensity value is obtained to be a second signal intensity;
comparing the first signal strength and the second signal strength;
when the first signal strength is greater than the second signal strength, the processor sends the control signal to enable the single-pole single-throw radio frequency switch to change from the second state to the first state; the single pole, single throw radio frequency switch maintains the second state when the first signal strength is less than or equal to the second signal strength.
According to another aspect of the present application, there is also provided a radio frequency signal transmission system including:
a processor that sends a wireless signal to an antenna through a first channel to transmit data through the first channel;
the antenna is switched to a second channel to transmit data through the second channel when the processor detects that a first signal between the processor and the antenna becomes poor.
Optionally, in the above radio frequency signal transmission system, when the processor detects that the first signal between the processor and the antenna becomes poor, switching to the second channel includes:
when the processor gets worse, recording the current signal strength as a first signal strength and recording the control signal level as a first level;
the processor sends a control signal to the selector switch, so that the single-pole single-throw radio frequency switch is changed from a first state of current disconnection to a second state of closing, the level of the control signal is changed to be a second level, the signal enhancement part is connected with the grounding network, and the current signal intensity value is obtained to be a second signal intensity;
comparing the first signal strength and the second signal strength;
when the first signal strength is greater than the second signal strength, the processor sends the control signal to enable the single-pole single-throw radio frequency switch to change from the second state to the first state; the single pole, single throw radio frequency switch maintains the second state when the first signal strength is less than or equal to the second signal strength.
The application also discloses a computer device, which comprises a memory, a processor and a computer program stored in the memory and capable of being executed by the processor, wherein the processor realizes the method of any one of the above items when executing the computer program.
The application also discloses a computer-readable storage medium, a non-volatile readable storage medium, having stored therein a computer program which, when executed by a processor, implements the method of any of the above.
Compared with the prior art, the method has the following beneficial effects:
when the wireless module works, if the module MCU processing unit detects the network signal deviation of the current wireless local area network, another antenna scheme can be tried, so that the current signal strength is improved.
When the module is arranged in the later period, the problem of signal improvement when the module enters partial space dead angle or the module is connected with a gateway/router to cause signal shielding due to the change of the environment is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic flow chart diagram of a radio frequency signal transmission method according to an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram of a method for radio frequency signal transmission according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a computer device according to one embodiment of the present application; and
FIG. 4 is a schematic diagram of a computer-readable storage medium according to one embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, an embodiment of the present application provides a radio frequency signal transmission method, including:
the processor sends a wireless signal to the antenna through a first channel so as to transmit data through the first channel;
when the processor detects that a first signal between the processor and the antenna becomes poor, switching to a second channel to transmit data through the second channel.
In an embodiment of the present application, the second channel includes:
a signal enhancement portion proximate to the antenna;
one end of the switch is connected with the processor, and the other end of the selection switch is connected with the signal enhancement part;
and the grounding network is connected with the signal enhancement part.
In an embodiment of the present application, the signal enhancement portion is a copper sheet.
In an embodiment of the present application, the processor detects that the first signal variation is: the processor detects that the first signal value is smaller than a preset threshold value and judges that the first signal becomes poor.
In one embodiment of the present application, the selection switch is a single-pole single-throw radio frequency switch.
In an embodiment of the present application, when the processor detects that the first signal between the processor and the antenna is degraded, switching to the second channel includes:
when the processor gets worse, recording the current signal strength as a first signal strength and recording the control signal level as a first level;
the processor sends a control signal to the selector switch, so that the single-pole single-throw radio frequency switch is changed from a first state of current disconnection to a second state of closing, the level of the control signal is changed to be a second level, the signal enhancement part is connected with the grounding network, and the current signal intensity value is obtained to be a second signal intensity;
comparing the first signal strength and the second signal strength;
when the first signal strength is greater than the second signal strength, the processor sends the control signal to enable the single-pole single-throw radio frequency switch to change from the second state to the first state; the single pole, single throw radio frequency switch maintains the second state when the first signal strength is less than or equal to the second signal strength.
For example, in fig. 1, 1 is a module soc (system on chip) processing unit: the antenna comprises a radio frequency transceiver and an MCU processor, wherein 2 is a default antenna on a module, which is generally a PCB printed antenna, 3 is a copper sheet close to the default antenna, the physical distance from the default antenna can be different from that of the default antenna, 4 is a single-pole single-throw radio frequency switch, and 5 is a grounding network on a wireless module.
When the module normally works, a wireless signal transceiving link is arranged between 1 and 2, 3 is connected to 5 through 4 units, and the link between 4 and 5 is disconnected under the default condition, namely 3 units are suspended and not connected with the ground. After the module is normally configured with a network, namely the WiFi module is configured below the wireless router or the Zigbee/bluetooth module is configured below the corresponding wireless gateway, if the unit 1 detects that the current wireless signal quality is poor, the current signal strength is recorded as Sd, and the current control signal level is a. Then the control signal sent by the unit 1 changes the state of the unit 4, i.e. the control signal level is changed to B, so that the radio frequency link between the unit 3 and the unit 5 controlled by the unit 4 is conducted, i.e. the unit 3 is connected to the ground plane, the software records the wireless signal strength read by the SOC at the moment as Sc, and compares the Sd with the Sc: if Sd > Sc, the control signal level is switched back to the A state; if Sd < ═ Sc, the control signal level remains in the B state. The states of a/B are just mutually exclusive high/low (or low/high) levels, the high level depending on the current level requirements of the radio frequency switch 4.
In this way, the front-end antenna always works in a better state by comparing the sizes of Sd and Sc in a period of time. Because 3 units are suspended, the signal transmission to the antenna is equivalently not performed; when the 3 units are connected with the ground, the 3 units can reflect/absorb signals to the left or right, the working state of the antenna is changed to a certain extent, and the signal strength of the module is enhanced if the antenna is transmitted.
The above embodiments describe only a few cases in the technical field of the present application, but are not limited to the following cases. For example, referring to fig. 2, in the present embodiment, the signal enhancement portion includes two copper sheets 3 and 6, which can be distributed in different directions of the antenna according to the actual situation, and the purpose of the distribution in different directions is to adjust the directivity of the antenna.
When the SOC detects that the signal of the current wireless environment is poor, the signal strength of the antenna under four conditions that ① default link, ② only 6 copper sheets are conducted to the ground, ③ only 3 copper sheets are conducted to the ground, ④ 3 and 6 copper sheets are all conducted to the ground, and the level states of the switches 4 and 7 under the optimal signal strength are maintained to maintain the signal strength.
Compared with the prior art, the method has the following beneficial effects:
when the wireless module works, if the module MCU processing unit detects the network signal deviation of the current wireless local area network, another antenna scheme can be tried, so that the current signal strength is improved.
When the module is arranged in the later period, the problem of signal improvement when the module enters partial space dead angle or the module is connected with a gateway/router to cause signal shielding due to the change of the environment is solved.
The present application also provides a radio frequency signal transmission system, including:
a processor that sends a wireless signal to an antenna through a first channel to transmit data through the first channel;
the antenna is switched to a second channel to transmit data through the second channel when the processor detects that a first signal between the processor and the antenna becomes poor.
In an embodiment of the present application, in a radio frequency signal transmission system, when the processor detects that a first signal between the processor and the antenna becomes poor, switching to a second channel includes:
when the processor gets worse, recording the current signal strength as a first signal strength and recording the control signal level as a first level;
the processor sends a control signal to the selector switch, so that the single-pole single-throw radio frequency switch is changed from a first state of current disconnection to a second state of closing, the level of the control signal is changed to be a second level, the signal enhancement part is connected with the grounding network, and the current signal intensity value is obtained to be a second signal intensity;
comparing the first signal strength and the second signal strength;
when the first signal strength is greater than the second signal strength, the processor sends the control signal to enable the single-pole single-throw radio frequency switch to change from the second state to the first state; the single pole, single throw radio frequency switch maintains the second state when the first signal strength is less than or equal to the second signal strength.
Referring to fig. 3, the present application further provides a computer device including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method of any one of the above methods when executing the computer program.
Referring to fig. 4, a computer-readable storage medium, a non-volatile readable storage medium, having stored therein a computer program which, when executed by a processor, implements any of the methods described above.
A computer program product comprising computer readable code which, when executed by a computer device, causes the computer device to perform the method of any of the above.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A method for radio frequency signal transmission, comprising:
the processor sends a wireless signal to the antenna through a first channel so as to transmit data through the first channel;
when the processor detects that a first signal between the processor and the antenna becomes poor, switching to a second channel to transmit data through the second channel.
2. The radio frequency signal transmission method according to claim 1, wherein the second channel includes:
a signal enhancement portion proximate to the antenna;
one end of the switch is connected with the processor, and the other end of the selection switch is connected with the signal enhancement part;
and the grounding network is connected with the signal enhancement part.
3. The radio frequency signal transmission method according to claim 2, wherein the signal enhancement portion is a copper sheet.
4. The method of claim 3, wherein the processor detects the first signal variation as: the processor detects that the first signal value is smaller than a preset threshold value and judges that the first signal becomes poor.
5. The method of claim 2, wherein the selection switch is a single-pole single-throw radio frequency switch.
6. The method of claim 5, wherein switching to a second channel when the processor detects degradation of the first signal between the processor and the antenna comprises:
when the processor gets worse, recording the current signal strength as a first signal strength and recording the control signal level as a first level;
the processor sends a control signal to the selector switch, so that the single-pole single-throw radio frequency switch is changed from a first state of current disconnection to a second state of closing, the level of the control signal is changed to be a second level, the signal enhancement part is connected with the grounding network, and the current signal intensity value is obtained to be a second signal intensity;
comparing the first signal strength and the second signal strength;
when the first signal strength is greater than the second signal strength, the processor sends the control signal to enable the single-pole single-throw radio frequency switch to change from the second state to the first state; the single pole, single throw radio frequency switch maintains the second state when the first signal strength is less than or equal to the second signal strength.
7. A radio frequency signal transmission system, comprising:
a processor that sends a wireless signal to an antenna through a first channel to transmit data through the first channel;
the antenna is switched to a second channel to transmit data through the second channel when the processor detects that a first signal between the processor and the antenna becomes poor.
8. The radio frequency signal transmission system according to claim 7, wherein switching to a second channel when the processor detects degradation of a first signal between the processor and the antenna comprises:
when the processor gets worse, recording the current signal strength as a first signal strength and recording the control signal level as a first level;
the processor sends a control signal to the selector switch, so that the single-pole single-throw radio frequency switch is changed from a first state of current disconnection to a second state of closing, the level of the control signal is changed to be a second level, the signal enhancement part is connected with the grounding network, and the current signal intensity value is obtained to be a second signal intensity;
comparing the first signal strength and the second signal strength;
when the first signal strength is greater than the second signal strength, the processor sends the control signal to enable the single-pole single-throw radio frequency switch to change from the second state to the first state; the single pole, single throw radio frequency switch maintains the second state when the first signal strength is less than or equal to the second signal strength.
9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable by the processor, wherein the processor implements the method of any one of claims 1-7 when executing the computer program.
10. A computer-readable storage medium, a non-transitory readable storage medium, having stored therein a computer program, characterized in that the computer program, when executed by a processor, implements the method according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103098.9A CN111294076B (en) | 2020-02-19 | 2020-02-19 | Radio frequency signal transmission method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010103098.9A CN111294076B (en) | 2020-02-19 | 2020-02-19 | Radio frequency signal transmission method and system |
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| CN111294076A true CN111294076A (en) | 2020-06-16 |
| CN111294076B CN111294076B (en) | 2021-12-17 |
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| US20100150366A1 (en) * | 2008-12-12 | 2010-06-17 | Unr, Llc, | Apparatus and method for cancelling, reducing and modulating noise signal and for signal enhancing and signal proofing |
| CN103024355A (en) * | 2012-12-12 | 2013-04-03 | 上海市安装工程有限公司 | Video monitoring and walkie-talkie network system used for high-rise building construction |
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