CN110798234B

CN110798234B - Method and equipment for improving communication sensitivity in 433MHZ wireless communication

Info

Publication number: CN110798234B
Application number: CN201910977750.7A
Authority: CN
Inventors: 朱志锋; 刘莉
Original assignee: Shenzhen H&T Intelligent Control Co Ltd
Current assignee: Shenzhen H&T Intelligent Control Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2021-08-17
Anticipated expiration: 2039-10-15
Also published as: CN110798234A

Abstract

The embodiment of the application discloses a method and equipment for improving the communication sensitivity in 433MHZ wireless communication. If a high level signal smaller than a preset width but a high level signal larger than the preset width does not appear in a first preset time period after the reception of a first data packet of a data stream is finished, shielding the high level signal smaller than the preset width; and if the high-level signal falling into the first preset range appears in a second preset time period after the first preset time period is ended, taking the high-level signal falling into the first preset range as a signal of a next data packet of the first data packet. By adopting the embodiment of the application, the wireless communication sensitivity can be improved.

Description

Method and equipment for improving communication sensitivity in 433MHZ wireless communication

Technical Field

The application relates to the technical field of computers, in particular to a method and equipment for improving communication sensitivity in 433MHZ wireless communication.

Background

In the field of household electrical control, a device with a 433MHZ wireless module sends acquired data to a receiving device, and accordingly, the receiving device receives the sent data, but in the process of receiving a data packet, the receiving device usually determines that the next data packet arrives through the high level of the packet header of the data packet, however, as the data transmission distance is longer and longer, the interference factors in the data transmission process increase, and high level interference signals are more and more likely to occur in the process of receiving the data packet, so that the receiving device mistakenly regards the high level interference signals as the high level signals of the packet header of the data packet, thereby causing inaccurate received data and low communication sensitivity. Therefore, how to improve the sensitivity of wireless communication is a technical problem that those skilled in the art are studying.

Disclosure of Invention

The embodiment of the application discloses a method and equipment for improving the communication sensitivity in 433MHZ wireless communication, which can improve the data accuracy and the communication sensitivity.

In a first aspect, an embodiment of the present application provides a method for improving communication sensitivity in 433MHZ wireless communication, including:

if a high level signal smaller than a preset width but not a high level signal larger than the preset width appears in a first preset time period after the reception of a first data packet of the data stream is finished, shielding the high level signal smaller than the preset width;

and if the high-level signal falling into the first preset range appears in a second preset time period after the first preset time period is ended, taking the high-level signal falling into the first preset range as a signal of a next data packet of the first data packet.

In the method, the high-level signal with the width smaller than the preset width is determined as the interference signal and is shielded, so that the data receiving end can effectively receive correct data. The first preset time period is a packet interval after the transmission of the first data packet is finished, the second preset time period is a time period after the transmission of the first data packet is finished, if a high level signal falling into a first preset range appears in the second preset time period, a new data packet is considered to appear, therefore, the high level signal falling into the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the interference signal in the packet interval from a signal of a packet head part of the next data packet of the first data packet by judging whether the width of the high level signal falls into the first preset range, the situation that the interference signal in the packet interval is mistaken as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

In an alternative of the first aspect, if a high level signal falling within a first preset range occurs within a second preset time period after the first preset time period ends, before the high level signal falling within the first preset range is used as a signal of a next data packet of the first data packet, if a high level signal larger than a preset width occurs within the first preset time period after the reception of the first data packet of the data stream ends, the reception of the data stream ends.

In the method, in a first preset time period after the reception of a first data packet of the data stream is finished, if a high level signal occurs and the width of the high level signal is greater than a preset width, it is considered that no next data packet arrives, and therefore the reception of the data stream is finished; by the aid of the judging mode, the method is convenient and timely, high in accuracy and capable of remarkably improving wireless communication sensitivity.

In yet another alternative of the first aspect, the receiving of the data stream is ended if the high level signal is not present within a second preset time period after the end of the first preset time period.

In the method, in a second preset time period after the first preset time period is ended, if no high-level signal appears, the next data packet is considered to not arrive, and therefore the reception of the data stream is ended; by the aid of the judging mode, the method is convenient and timely, high in accuracy and capable of remarkably improving wireless communication sensitivity.

In yet another alternative of the first aspect, if a high level signal that does not fall within the first preset range occurs within a second preset time period after the end of the first preset time period, the high level signal that does not fall within the first preset range is masked.

In the above method, if a high level signal that does not fall within the first preset range occurs within a second preset time period after the end of the first preset time period, the inventors of the present application consider the high level signal that does not fall within the first preset range as an interference signal, and mask the interference signal. The data receiving end can receive correct data by shielding interference signals, the phenomenon that the received data are incorrect is avoided, and the wireless communication sensitivity is obviously improved.

In yet another alternative of the first aspect, after the high level signal falling within the first preset range is used as the signal of the next packet of the first packet, if the high level signal falling within the second preset range occurs within a third preset time period after the second preset time period ends, the high level signal falling within the second preset range is used as the signal of the next packet of the first packet.

In the above method, the second preset time period is a time to receive a header portion of a next packet of the first packet, the third preset time period is a time to receive a data portion of the next packet of the first packet, and in the third preset time period, if a high level signal occurs and a width of the high level signal falls within a second preset range, the high level signal falling within the second preset range is used as a signal of the data portion of the next packet of the first packet. By the method, accurate data and wrong data can be judged, and the wireless communication sensitivity is obviously improved.

In yet another alternative of the first aspect, if a high level signal that does not fall within the second preset range occurs within a third preset time period after the second preset time period ends, the high level signal that does not fall within the second preset range is masked.

In the above method, if a high level signal that does not fall within the second preset range occurs within a third preset time period after the end of the second preset time period, the inventors of the present application consider the high level signal that does not fall within the second preset range as an interference signal and mask the interference signal. The data receiving end can receive correct data by shielding interference signals, the phenomenon that the received data are incorrect is avoided, and the wireless communication sensitivity is obviously improved.

In a second aspect, an embodiment of the present application provides an apparatus for improving communication sensitivity in 433MHZ wireless communication, including:

the first shielding unit is used for shielding the high-level signal smaller than the preset width under the condition that the high-level signal smaller than the preset width does not appear but the high-level signal larger than the preset width does not appear in a first preset time period after the receiving of the first data packet of the data stream is finished;

and the first processing unit is used for taking the high-level signal falling into the first preset range as a signal of a next data packet of the first data packet under the condition that the high-level signal falling into the first preset range appears in a second preset time period after the first preset time period is ended.

In the device, the high-level signal with the width less than the preset width is determined as the interference signal and is shielded, so that the data receiving end can effectively receive correct data. The first preset time period is a packet interval after the transmission of the first data packet is finished, the second preset time period is a time period after the transmission of the packet interval is finished, if a high level signal falling into a first preset range appears in the second preset time period, a new data packet is considered to appear, therefore, the high level signal falling into the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the signal in the packet interval and the signal of the packet head part of the next data packet of the first data packet by judging whether the width of the high level signal falls into the first preset range, the situation that the signal in the packet interval is mistakenly considered as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

In an alternative of the second aspect, if a high level signal falling within a first preset range occurs within a second preset time period after the first preset time period ends, before the high level signal falling within the first preset range is used as a signal of a next packet of the first packet, the apparatus further includes:

and the first end unit is used for ending the reception of the data stream when a high-level signal larger than the preset width appears in the first preset time period after the reception of the first data packet of the data stream is ended.

In the above apparatus, in a first preset time period after the reception of the first packet of the data stream is ended, if a high level signal occurs and the width of the high level signal is greater than a preset width, it is considered that no next packet arrives, and thus the reception of the data stream is ended; by the aid of the judging mode, the method is convenient and timely, high in accuracy and capable of remarkably improving wireless communication sensitivity.

In yet another alternative of the second aspect, the apparatus further comprises:

a second ending unit, configured to end the receiving of the data stream when a high level signal does not occur in the second preset time period after the first preset time period ends.

In the above apparatus, in a second preset time period after the first preset time period ends, if no high level signal appears, it is considered that no next data packet arrives, and thus the reception of the data stream ends; by the aid of the judging mode, the method is convenient and timely, high in accuracy and capable of remarkably improving wireless communication sensitivity.

and the second shielding unit is used for shielding the high-level signal which does not fall into the first preset range under the condition that the high-level signal which does not fall into the first preset range appears in a second preset time period after the first preset time period is ended.

In the above apparatus, if a high level signal that does not fall within the first preset range occurs within a second preset time period after the end of the first preset time period, the inventors of the present application consider the high level signal that does not fall within the first preset range as an interference signal and mask the interference signal. The data receiving end can receive correct data by shielding interference signals, the phenomenon that the received data are incorrect is avoided, and the wireless communication sensitivity is obviously improved.

In a further alternative of the second aspect, the first processing unit is configured to take the high-level signal falling within the first preset range as a signal of a next packet of the first packet, and the apparatus further includes:

and the second processing unit is used for taking the high-level signal falling in the second preset range as a signal of a next data packet of the first data packet under the condition that the high-level signal falling in the second preset range appears in a third preset time period after the second preset time period is ended.

In the above apparatus, the second preset time period is a time to receive a header portion of a next packet of the first packet, the third preset time period is a time to receive a data portion of the next packet of the first packet, and in the third preset time period, if a high level signal occurs and a width of the high level signal falls within a second preset range, the high level signal falling within the second preset range is used as a signal of the data portion of the next packet of the first packet. By the method, accurate data and wrong data can be judged, and the wireless communication sensitivity is obviously improved.

and the third shielding unit is used for shielding the high-level signal which does not fall into the second preset range under the condition that the high-level signal which does not fall into the second preset range appears in a third preset time period after the second preset time period is ended.

In the above apparatus, if a high level signal that does not fall within the second preset range occurs within a third preset time period after the end of the second preset time period, the inventors of the present application consider the high level signal that does not fall within the second preset range as an interference signal and mask the interference signal. The data receiving end can receive correct data by shielding interference signals, the phenomenon that the received data are incorrect is avoided, and the wireless communication sensitivity is obviously improved.

In a third aspect, an embodiment of the present application provides an apparatus for improving communication sensitivity in 433MHZ wireless communication, including: a processor, a memory, wherein the memory is used for storing a computer program, the processor is configured for invoking the computer program for performing the following operations:

In the equipment, the high-level signal with the width smaller than the preset width is determined as the interference signal and is shielded, so that the data receiving end can effectively receive correct data. The first preset time period is a packet interval after the transmission of the first data packet is finished, the second preset time period is a time period after the transmission of the packet interval is finished, if a high level signal falling into a first preset range appears in the second preset time period, a new data packet is considered to appear, therefore, the high level signal falling into the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the signal in the packet interval and the signal of the packet head part of the next data packet of the first data packet by judging whether the width of the high level signal falls into the first preset range, the situation that the signal in the packet interval is mistakenly considered as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

In an alternative of the third aspect, if the high level signal falling within the first preset range occurs within a second preset time period after the first preset time period ends, before the high level signal falling within the first preset range is used as a signal of a next data packet of the first data packet, the processor is further configured to:

and if a high level signal with a width larger than a preset width appears in a first preset time period after the reception of the first data packet of the data stream is finished, finishing the reception of the data stream.

In the above device, in a first preset time period after the reception of a first packet of the data stream is ended, if a high level signal occurs and the width of the high level signal is greater than a preset width, it is considered that no next packet arrives, and thus the reception of the data stream is ended; by the aid of the judging mode, the method is convenient and timely, high in accuracy and capable of remarkably improving wireless communication sensitivity.

In yet another alternative of the third aspect, the processor is further configured to:

and if the high-level signal does not appear in a second preset time period after the first preset time period is ended, ending the reception of the data stream.

In the above device, in a second preset time period after the first preset time period ends, if no high level signal appears, it is considered that no next data packet arrives, and thus the reception of the data stream ends; by the aid of the judging mode, the method is convenient and timely, high in accuracy and capable of remarkably improving wireless communication sensitivity.

and if the high-level signal which does not fall into the first preset range appears in a second preset time period after the first preset time period is ended, shielding the high-level signal which does not fall into the first preset range.

In the above apparatus, if a high level signal that does not fall within the first preset range occurs within a second preset time period after the end of the first preset time period, the inventors of the present application consider the high level signal that does not fall within the first preset range as an interference signal, and mask the interference signal. The data receiving end can receive correct data by shielding interference signals, the phenomenon that the received data are incorrect is avoided, and the wireless communication sensitivity is obviously improved.

In a further alternative of the third aspect, the processor, after receiving a high level signal falling within a first predetermined range as a signal of a next packet of the first packet, is further configured to:

and if the high-level signal falling into the second preset range appears in a third preset time period after the second preset time period is ended, taking the high-level signal falling into the second preset range as a signal of a next data packet of the first data packet.

In a further alternative of the third aspect, the processor is configured to, after the high level signal falling within the first preset range is used as a signal of a next packet of the first packet, further configured to:

and if the high-level signal which does not fall into the second preset range occurs in a third preset time period after the second preset time period is ended, shielding the high-level signal which does not fall into the second preset range.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program, which when executed by a processor causes the processor to implement the method described in the first aspect or the alternative to the first aspect.

Through implementing this application embodiment, be less than the high level signal of predetermineeing the width and deem as interference signal to shield it, guaranteed effectively that data receiving terminal can receive correct data. The first preset time period is a packet interval after the transmission of the first data packet is finished, the second preset time period is a time period after the transmission of the packet interval is finished, if a high level signal falling into a first preset range appears in the second preset time period, a new data packet is considered to appear, therefore, the high level signal falling into the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the signal in the packet interval and the signal of the packet head part of the next data packet of the first data packet by judging whether the width of the high level signal falls into the first preset range, the situation that the signal in the packet interval is mistakenly considered as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments of the present application or the background art will be briefly described below.

Fig. 1 is a schematic diagram of a system architecture of a method for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present application;

fig. 2 is a part of a data stream transmitted by a first device according to an embodiment of the present disclosure;

FIG. 3 is a flowchart illustrating a method for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present application;

FIG. 4 is a flowchart illustrating a method for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an apparatus for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an apparatus for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic diagram of a system architecture of a method for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present disclosure. The system comprises a first device 101 and a second device 102, wherein the first device 101 is used for transmitting data streams, the second device 102 is used for receiving the data streams, the first device 101 transmits the data streams through 433MHZ wireless communication technology, the second device 102 receives the data streams through 433MHZ wireless communication technology, the 433MHZ wireless communication technology uses 433MHZ wireless frequency band, only the topology structure of a star-type network is supported, the extension of network coverage space is realized through a multi-base station mode, compared with other wireless communication technologies, 433MHZ wireless signals are stronger in penetrability and can be propagated farther. The embodiment of the present application focuses on receiving data streams through 433MHZ wireless communication technology, that is, focuses on the working principle of the second device 102. The second device 102 may be a mobile phone, a notebook computer, an intelligent door lock, an intelligent electric meter, an intelligent camera, an intelligent smoke alarm, an intelligent home device, an intelligent fan, an intelligent exhaust fan, an intelligent electronic device, and the like. As shown in fig. 2, the first device transmits a portion of a data stream, which is composed of a plurality of data packets and signals during packet gaps. A packet interval is the time waiting between two data packets. The data packet includes a header portion and a data portion. For example, the period of one packet and one packet interval is 82ms, the header portion of one packet has 12 high signals, and the data portion of one packet has 42 high signals. Of course, the time lengths of the data portion, the header portion, and the packet interval may also be set to other values as needed.

Referring to fig. 3, fig. 3 is a flowchart illustrating a method for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present application, where the method includes, but is not limited to, the following steps.

Step S301: the second device determines that reception of the first packet of the data stream is complete.

Specifically, the data stream is composed of one or more data packets and one or more signals in packet intervals, and the first data packet may be any one data packet in the data stream. The first data packet includes a header portion and a data portion.

In the embodiment of the present application, when the sum of the number of high level signals marked as 1 and the number of high level signals marked as 0 is equal to the second preset threshold and the last two high level signals of the first packet data part are both marked as 1 when the data part of the first packet is received, the data part reception of the first packet is finished and the first packet reception is finished.

The second preset threshold is a preset value for reference contrast, and may be configured in advance as needed, for example, if the second preset threshold is 42, the sum of the number of high level signals marked as 1 and the number of high level signals marked as 0 is 42, and both the 41 th high level signal and the 42 th high level signal are marked as 1, then the data portion reception of the first packet is ended, and it is determined that the first packet reception of the data stream is ended.

Step S302: and if a high level signal with a width larger than a preset width appears in a first preset time period after the reception of the first data packet of the data stream is finished, the second equipment finishes the reception of the data stream.

In this embodiment of the application, if the next data packet of the first data packet is further continuously received after the reception of the first data packet is finished, the first preset time period after the reception of the first data packet is finished may be a packet interval after the transmission of the first data packet is finished, the packet interval is a time for waiting for receiving the next data packet after the transmission of the first data packet is finished, and the time of the packet interval may be 52 milliseconds (ms).

The preset width is a preset value for reference comparison, and may be configured in advance as needed, for example, if the preset width is 6ms, the width of the high level signal occurring in the first preset time period after the end of receiving the first data packet of the data stream is 10ms, and since 10ms is greater than the preset width of 6ms, the end of receiving the data stream is reached.

Step S303: and if the high level signal smaller than the preset width but the high level signal larger than the preset width does not appear in a first preset time period after the reception of the first data packet of the data stream is finished, the second equipment shields the high level signal smaller than the preset width.

For example, if the preset width is 6ms, the width of the high level signal occurring in the first preset time period after the reception of the first packet of the data stream is ended is 5ms, and since 5ms is smaller than the preset width of 6ms, the high level signal with the width of 5ms is an interference signal, and the high level signal with the width of 5ms is masked.

For example, if the preset width is 6ms, the width of the high level signal appearing in the first preset time period after the reception of the first data packet of the data stream is 4ms, and since 4ms is smaller than the preset width 6ms, the high level signal with the width of 4ms is an interference signal, and the high level signal with the width of 5ms is shielded; for example, if the preset width is 6ms, the width of the high level signal occurring in the first preset time period after the reception of the first packet of the data stream is ended is 10ms, and since 10ms is greater than the preset width of 6ms, the reception of the data stream is ended.

It can be understood that the high level signal smaller than the preset width is identified as the interference signal and is shielded, thereby effectively ensuring that the data receiving end can receive correct data.

In this embodiment of the present application, for a case that a high level signal equal to a preset width occurs in a first preset time period after the reception of a first data packet of a data stream is ended, there may be two optional processing manners as follows.

First, if a high level signal equal to a preset width appears in a first preset time period after the reception of a first data packet of the data stream is finished, the reception of the data stream is finished.

Secondly, if a high level signal equal to a preset width appears but a high level signal larger than the preset width does not appear in a first preset time period after the reception of the first data packet of the data stream is finished, the high level signal equal to the preset width is shielded.

Step S304: and if the high-level signal falling into the first preset range appears in a second preset time period after the first preset time period is ended, the second equipment takes the high-level signal falling into the first preset range as a signal of a next data packet of the first data packet.

Specifically, the second preset time period is a time length for allowing reception of the header portion of the data packet, and the second preset time period is a value for reference comparison, which may be configured in advance as needed.

The first preset range is a preset numerical range for reference comparison, and may be configured in advance as needed, for example, if the first preset range is [160 microseconds (us), 280 microseconds (us) ], a width of a high-level signal occurring in a second preset time period after the first preset time period ends is 200us, the high-level signal with the width of 200us falls into the first preset range, and therefore the high-level signal with the width of 200us is used as a signal of a header portion of a next packet of the first packet.

Specifically, if a high level signal falling within a first preset range occurs within a second preset time period, a new data packet is considered to occur, and therefore the high level signal falling within the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the signal in the packet interval from the signal of the header part of the next data packet of the first data packet by judging whether the width of the high level signal falls within the first preset range, so that the occurrence of a situation that the signal in the packet interval is mistakenly considered as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

Step S305: and if the high-level signal which does not fall into the first preset range occurs in a second preset time period after the first preset time period is ended, the second equipment shields the high-level signal which does not fall into the first preset range.

For example, if the first preset range is [160us, 280us ], the width of the high-level signal appearing in the second preset time period after the first preset time period ends is 100us, and the high-level signal with the width of 100us does not fall into the first preset range [160us, 280us ], then the high-level signal with the width of 100us is an interference signal, and the high-level signal with the width of 100us is masked.

For example, the first preset range is [160us, 280us ], a high level signal appears in a second preset time period after the first preset time period ends, the width of the high level signal is 300us, the high level signal with the width of 300us does not fall into the first preset range [160us, 280us ], then the high level signal with the width of 300us is an interference signal, and the high level signal with the width of 300us is masked.

Step S306: and if the high-level signal does not appear in a second preset time period after the first preset time period is ended, the second equipment ends the reception of the data stream.

For example, when a low level signal occurs in a second preset time period after the first preset time period ends, the reception of the data stream ends.

The above description is about the case where the first preset time period and the second preset time period may occur after the transmission of one data packet is finished, and the following description is about the case where the third preset time period may occur after the second preset time period is finished.

In yet another alternative, after the high level signal falling within the first preset range is used as the signal of the next packet of the first packet, if the high level signal falling within the second preset range occurs within a third preset time period after the second preset time period ends, the high level signal falling within the second preset range is used as the signal of the next packet of the first packet.

In particular, the third time period may be a length of time that allows the data portion of the data packet to be received.

The second preset range is a preset numerical range for reference comparison, and may be configured in advance as needed, for example, if the second preset range is a range represented by [160us, 280us ] and [360us, 480us ], a high level signal occurs in a third preset time period after the second preset time period ends, and the width of the high level signal is 180us, and the high level signal with the width of 180us falls into [160us, 280us ] of the second preset range, the high level signal with the width of 180us is marked as 0; the high-level signal with the width of 180us is a signal of a data portion after the reception of the header portion of the next packet of the first packet is finished, and the high-level signal with the width of 180us is a signal of the next packet of the first packet.

For example, if the second preset range is a range represented by [160us, 280us ] and [360us, 480us ], a high-level signal appears in a third preset time period after the second preset time period ends, and the width of the high-level signal is 400us, then the high-level signal with the width of 400us falls into [360us, 480us ] of the second preset range, and then the high-level signal with the width of 400us is marked as 1; the high-level signal with the width of 400us is a signal of a data portion after the reception of the header portion of the next packet of the first packet is ended, and the high-level signal with the width of 400us is a signal of the next packet of the first packet.

Specifically, the high signal flag is 0 or 1 for determining whether the first packet reception is finished. Specific principles may refer to step S301.

In yet another alternative, after the high level signal falling within the first preset range is used as the signal of the next data packet of the first data packet, if the high level signal not falling within the second preset range occurs within a third preset time period after the second preset time period ends, the high level signal not falling within the second preset range is masked.

For example, if the second preset range is a range represented by both [160us, 280us ] and [360us, 480us ], a high-level signal occurs in a third preset time period after the end of the second preset time period, and the width of the high-level signal is 100us, the high-level signal with the signal width of 100us does not fall into the second preset ranges [160us, 280us ] and [360us, 480us ], the high-level signal with the width of 100us is an interference signal, and the high-level signal with the width of 100us is masked.

For example, if the second preset range is a range represented by both [160us, 280us ] and [360us, 480us ], a high-level signal occurs in a third preset time period after the end of the second preset time period, and the width of the high-level signal is 290us, the high-level signal with the signal width of 290us does not fall into the second preset ranges [160us, 280us ] and [360us, 480us ], the high-level signal with the width of 290us is an interference signal, and the high-level signal with the width of 290us is masked.

For example, if the second preset range is a range represented by both [160us, 280us ] and [360us, 480us ], a high-level signal occurs in a third preset time period after the end of the second preset time period, and the width of the high-level signal is 500us, the high-level signal with the signal width of 500us does not fall into the second preset ranges [160us, 280us ] and [360us, 480us ], the high-level signal with the width of 500us is an interference signal, and the high-level signal with the width of 100us is masked.

In the method described in fig. 3, the high level signal smaller than the preset width is identified as the interference signal and is shielded, which effectively ensures that the data receiving end can receive the correct data. The first preset time period is a packet interval after the transmission of the first data packet is finished, the second preset time period is a time period after the transmission of the packet interval is finished, if a high level signal falling into a first preset range appears in the second preset time period, a new data packet is considered to appear, therefore, the high level signal falling into the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the signal in the packet interval and the signal of the packet head part of the next data packet of the first data packet by judging whether the width of the high level signal falls into the first preset range, the situation that the signal in the packet interval is mistakenly considered as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

Based on the example described in fig. 3, the present application provides a more specific embodiment in conjunction with fig. 4, which includes, but is not limited to, the following steps.

Step S401: the second device determines whether to start receiving the data packet.

Specifically, if a high level signal occurs and the width of the high level signal is within a first preset range, the data packet starts to be received. Otherwise, no data packet is received.

Step S402: and starting to receive the data packet, and judging whether the width of the high-level signal falls into a first preset range or not by the second equipment.

In the first case: and if the width of the high-level signal falls into a first preset range, using the high-level signal falling into the first range as a signal of a packet header part of the data packet. For example, if the first predetermined range is [160us, 280us ], the high-level signal has a width of 200us, and the high-level signal having a width of 200us falls into the first predetermined range, the high-level signal having a width of 200us is used as the signal of the header portion of the data packet.

In the second case: and if the width of the high-level signal does not fall into the first preset range, shielding the high-level signal which does not fall into the first preset range. For example, if the first predetermined range is [160us, 280us ], the high level signal has a width of 100us, and the high level signal having the width of 100us does not fall within the first predetermined range of [160us, 280us ], the high level signal having the width of 100us is masked.

Step S403: if the width of the high-level signal falls within the first preset range, the high-level signal falling within the first preset range is the signal of the packet header part of the data packet, and the second device continues to receive the signal of the packet header part of the data packet.

Step S404: the second device determines whether the number of signals in the header portion of the data packet is equal to a first preset threshold value and whether the reception of the signals in the header portion of the data packet is finished.

In the first case: if the number of the signals of the header part of the data packet is equal to the first preset threshold, the signal reception of the header part of the data packet is finished, and the signal reception of the data part of the data packet is started. The first preset threshold is a preset value for reference comparison, and may be configured in advance as needed, for example, if the first preset threshold is 12, the number of signals in the header portion of the data packet is 12, and the number of signals in the header portion of the data packet is 12 equal to the first preset threshold 12, then the signal reception in the header portion of the data packet is ended, and the signal reception in the data portion of the data packet is started.

In the second case: if the number of the signals of the header part of the data packet is smaller than the first preset threshold, continuing to receive the signals of the header part of the data packet until the number of the signals of the header part of the data packet is equal to the first preset threshold. For example, if the first predetermined threshold is 12, the number of signals in the header portion of the data packet is 8, and the number of signals in the header portion of the data packet is less than the first predetermined threshold 12, the reception of the signals in the header portion of the data packet is continued until the number of signals in the header portion of the data packet is equal to the first predetermined threshold 12.

Step S405: and if the signal of the header part of the data packet is received, starting to receive the signal of the data part of the data packet, judging whether the width of the high-level signal falls into a second preset range by the second equipment, and determining that the mark of the high-level signal is 0 or 1.

In the first case, if the width of the high level signal falls within the second preset range, the high level signal falling within the second preset range is a signal of the data portion of the data packet, and the high level signal falling within the second preset range is marked as 0 or 1. The second preset range is a preset numerical range for reference comparison, and may be configured in advance as needed, for example, if the second preset range is a range represented by [160us, 280us ] and [360us-480us ], and the width of the high-level signal is 200us, the high-level signal with the width of 200us falls into the second preset range [160us, 280us ], the high-level signal with the width of 200us is marked as 0, and the high-level signal with the width of 200us is determined as a signal of the data portion of the packet; for example, if the second preset range is a range represented by [160us, 280us ] and [360us-480us ], and the width of the high-level signal is 400us, the high-level signal with the width of 400us falls into the second preset range [360us-480us ], the high-level signal with the width of 400us is marked as 1, and the high-level signal with the width of 400us is determined as a signal of the data portion of the packet.

In the second case, if the width of the high level signal does not fall within the second preset range, the high level signal which does not fall within the second preset range is masked. For example, if the second preset range is a range represented by both [160us, 280us ] and [360us-480us ], the high level signal having a width of 150us does not fall within a range represented by both [160us, 280us ] and [360us-480us ], the high level signal having a width of 150us is masked. For example, if the second preset range is a range represented by both [160us, 280us ] and [360us-480us ], the high level signal having a width of 500us, which does not fall within the range represented by both the second preset range [160us, 280us ] and [360us-480us ], the high level signal having a width of 500us is masked.

Step S406: if the width of the high-level signal falls within a second preset range, the high-level signal falling within the second preset range is a signal of the data part of the data packet, the high-level signal falling within the second preset range is marked as 0 or 1, the second device judges whether the number of the high-level signals marked as 0 or 1 of the data part of the data packet is equal to a second preset threshold value or not, and whether the data part of the data packet is received or not is finished.

In the first case, if the sum of the number of high-level signals marked as 0 and the number of high-level signals marked as 1 in the data portion of the data packet is equal to the second preset threshold, and both of the last two high-level signals in the data portion of the data packet are marked as 1, the data portion reception of the data packet is finished. The second preset threshold is a preset value for reference comparison, and may be configured in advance as needed, for example, if the second preset threshold is 42, the sum of the number of high level signals marked as 0 and the number of high level signals marked as 1 of the data portion of the data packet is 42, and both the 42 th high level signal and the 42 th high level signal are marked as 1, then the data portion reception of the data packet is ended.

In the second case, if the sum of the number of high-level signals marked as 0 and the number of high-level signals marked as 1 of the data portion of the data packet is less than the second preset threshold, the data portion of the data packet continues to be received until the sum of the number of high-level signals marked as 0 and the number of high-level signals marked as 1 of the data portion of the data packet is equal to the second preset threshold, and the last two high-level signals of the data portion of the data packet are both 1. For example, if the second preset threshold is 42, the sum of the number of high level signals marked as 0 and the number of high level signals marked as 1 of the data portion of the data packet is 32, the data portion of the data packet continues to be received until the sum of the number of high level signals marked as 0 and the number of high level signals marked as 1 of the data portion of the data packet is the second preset threshold 42, and the last two high level signals of the data portion of the data packet are both 1.

Step S407: if the reception of the data portion of the data packet is finished, the packet interval starts.

Step S408: during the inter-packet period, the second device determines whether a high level signal greater than a preset width is present.

Specifically, during the inter-packet interval, if a high level signal greater than a preset width occurs, the data stream reception ends. The packet interval is a time for waiting for the next packet to be received after the reception of one packet is completed. For example, if the preset width is 6ms, a high level signal of 8ms occurs during the inter-packet interval, and since 8ms is greater than the preset width of 6ms, reception of the data stream is terminated.

Step S409: and if the high level signal larger than the preset width does not appear, the second equipment judges whether the packet interval is finished or not.

Specifically, the inter-packet time may be 52 milliseconds (ms). If the receiving time exceeds the time of the packet interval, the packet interval is ended, and if the receiving time does not exceed the time of the packet interval, the signal in the period of the packet interval is continuously received. If the packet interval is over, judging whether to start receiving the next data packet. And if the high level signal less than the preset width appears during the inter-packet interval, shielding the high level signal less than the preset width.

Step S410: if the packet interval is over, the second device determines whether to start receiving the next data packet.

Specifically, if the next packet starts to be received, step S401 is executed.

Step S411: and if the next data packet is not received, the data stream reception is finished.

In the method described in fig. 4, the high level signal smaller than the preset width is identified as the interference signal and is shielded, which effectively ensures that the data receiving end can receive the correct data. The first preset time period is a packet interval after the transmission of the first data packet is finished, the second preset time period is a time period after the transmission of the packet interval is finished, if a high level signal falling into a first preset range appears in the second preset time period, a new data packet is considered to appear, therefore, the high level signal falling into the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the signal in the packet interval and the signal of the packet head part of the next data packet of the first data packet by judging whether the width of the high level signal falls into the first preset range, the situation that the signal in the packet interval is mistakenly considered as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

Referring to fig. 5, fig. 5 is a schematic structural diagram of an apparatus for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present disclosure, where the apparatus 500 may include a first shielding unit 501 and a first processing unit 502. The details of each unit are as follows.

A first shielding unit 501, configured to shield a high level signal smaller than a preset width when a high level signal smaller than the preset width occurs but a high level signal larger than the preset width does not occur within a first preset time period after receiving a first data packet of a data stream is ended;

the first processing unit 502 is configured to, when a high level signal falling within a first preset range occurs in a second preset time period after the first preset time period ends, use the high level signal falling within the first preset range as a signal of a next packet of the first packet.

In an alternative, if a high level signal falling within a first preset range occurs within a second preset time period after the first preset time period ends, before the high level signal falling within the first preset range is used as a signal of a next packet of the first packet, the apparatus further includes:

In yet another alternative, the above apparatus further comprises:

In yet another alternative, the first processing unit is configured to take the high-level signal falling within the first preset range as a signal of a next packet of the first packet, and the apparatus further includes:

In yet another alternative, the first processing unit 502 is configured to take the high-level signal falling within the first preset range as the signal of the next data packet of the first data packet, and the apparatus further includes:

Referring to fig. 6, fig. 6 is a schematic structural diagram of an apparatus for improving communication sensitivity in 433MHZ wireless communication according to an embodiment of the present disclosure, where the apparatus 600 includes a processor 601, a memory 602, and a communication interface 603, and the processor 601 and the memory 602 may be connected by a bus or in another manner, and the embodiment of the present disclosure takes the connection by the bus as an example.

The processor 601 (or Central Processing Unit, CPU) is a computing core and a control core of the device, and can analyze various instructions in the device and various data of the Processing device, for example: the CPU may transmit various types of interactive data between the internal structures of the device, and so on. Memory 602(Memory) is the Memory device of the device for storing programs and data. It will be appreciated that the memory 602 may comprise both the internal memory of the device and, of course, the expansion memory supported by the device. The memory 602 provides storage space that stores the operating system of the device, which may include, but is not limited to: android system, iOS system, Windows Phone system, etc., which are not limited in this application.

In an embodiment of the application, the processor 601 runs an executable computer program in the memory 602 for performing the following operations:

In an alternative, the processor 601 is further configured to, in a case where a high level signal falling within a first preset range occurs within a second preset time period after the first preset time period ends, before the high level signal falling within the first preset range is used as a signal of a next packet of the first packet:

and under the condition that a high-level signal which is larger than a preset width appears in a first preset time period after the reception of the first data packet of the data stream is finished, finishing the reception of the data stream.

In yet another alternative, the processor 601 is further configured to:

and under the condition that the high-level signal does not appear in a second preset time period after the first preset time period is ended, ending the data stream receiving.

In yet another alternative, the processor 601 is further configured to:

and shielding the high-level signal which does not fall into the first preset range under the condition that the high-level signal which does not fall into the first preset range appears in a second preset time period after the first preset time period is ended.

In yet another alternative, after the processor 601 is configured to use the high level signal falling within the first preset range as the signal of the next data packet of the first data packet, the processor 601 is further configured to:

and under the condition that the high-level signal falling into the second preset range appears in a third preset time period after the second preset time period is ended, taking the high-level signal falling into the second preset range as a signal of a next data packet of the first data packet.

and shielding the high-level signal which does not fall into the second preset range under the condition that the high-level signal which does not fall into the second preset range appears in a third preset time period after the second preset time period is ended.

In summary, by implementing the embodiment of the present application, the high level signal smaller than the preset width is determined as the interference signal and is shielded, so that the data receiving end is effectively ensured to receive correct data. The first preset time period is a packet interval after the transmission of the first data packet is finished, the second preset time period is a time period after the transmission of the packet interval is finished, if a high level signal falling into a first preset range appears in the second preset time period, a new data packet is considered to appear, therefore, the high level signal falling into the first preset range is used as a signal of a next data packet of the first data packet, that is, the data receiving end distinguishes the signal in the packet interval and the signal of the packet head part of the next data packet of the first data packet by judging whether the width of the high level signal falls into the first preset range, the situation that the signal in the packet interval is mistakenly considered as the next data packet of the first data packet is avoided, and the wireless communication sensitivity is improved.

An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, causes the processor to execute a method for improving communication sensitivity in 433MHZ wireless communication according to the embodiment of the method.

Embodiments of the present application also provide a computer program product containing instructions that, when executed on a computer, cause the computer to perform a method for improving communication sensitivity in 433MHZ wireless communication according to the above method embodiments.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The modules in the device can be merged, divided and deleted according to actual needs.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by instructions associated with hardware via a program, which may be stored in a computer-readable storage medium, and the storage medium may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for improving communication sensitivity in 433MHZ wireless communication, comprising:

if a high level signal smaller than a preset width but a high level signal larger than the preset width does not appear in a first preset time period after the reception of a first data packet of the data stream is finished, shielding the high level signal smaller than the preset width;

if a high level signal with a width greater than the preset width appears in the first preset time period after the reception of the first data packet of the data stream is finished, finishing the reception of the data stream;

if a high level signal falling into a first preset range appears in a second preset time period after the first preset time period is ended, taking the high level signal falling into the first preset range as a signal of a next data packet of the first data packet;

if no high-level signal appears in the second preset time period after the first preset time period is ended, ending the reception of the data stream;

and if the high level signal which does not fall into the first preset range appears in the second preset time period after the first preset time period is ended, shielding the high level signal which does not fall into the first preset range.

2. The method according to claim 1, wherein said taking the high level signal falling within the first preset range as the signal of the next packet of the first packet further comprises:

3. The method of claim 2, further comprising:

and if the high level signal which does not fall into the second preset range appears in a third preset time period after the second preset time period is ended, shielding the high level signal which does not fall into the second preset range.

4. An apparatus for improving communication sensitivity in 433MHZ wireless communication, comprising:

the first shielding unit is used for shielding the high-level signal smaller than the preset width under the condition that the high-level signal smaller than the preset width appears but the high-level signal larger than the preset width does not appear in a first preset time period after the receiving of the first data packet of the data stream is finished;

a first ending unit, configured to end the receiving of the data stream when a high level signal greater than the preset width occurs within the first preset time period after the receiving of the first data packet of the data stream is ended;

the first processing unit is used for taking the high-level signal falling into the first preset range as a signal of a next data packet of the first data packet under the condition that the high-level signal falling into the first preset range appears in a second preset time period after the first preset time period is ended;

a second ending unit, configured to end the receiving of the data stream when a high level signal does not occur within the second preset time period after the first preset time period ends;

5. An apparatus for improving communication sensitivity in 433MHZ wireless communication, comprising a processor, a memory and an output device, wherein the processor, the memory and the output device are connected to each other, wherein the memory is used for storing a computer program, and the processor is configured to call the computer program to implement the method for improving communication sensitivity in 433MHZ wireless communication according to any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, causes the processor to implement the method of increasing communication sensitivity in 433MHZ wireless communication according to any one of claims 1 to 3.