CN118678447B - Intelligent method for anti-interference accurate positioning based on UWB base station - Google Patents

Abstract

The present application relates to an intelligent method for precise positioning based on anti-interference of UWB base stations. By receiving the sine wave frequency of the network access system, the order of short pulses corresponding to the sine wave frequency is determined, and based on the duty cycle of each short pulse, a fundamental wave interference signal with a sine wave waveform is generated. The fundamental wave interference signal is a simulated short pulse combination signal. Converting the traditional short pulse signal into a fundamental wave interference signal is beneficial to improving the signal propagation range of the UWB base station. When the fundamental wave is blocked by a building, the fundamental wave with a sine wave waveform will be reflected at the same time, which ensures that the fundamental wave interference signal will not be distorted, thereby improving the model anti-interference ability of the UWB base station.

Description

An intelligent method for precise positioning based on UWB base station anti-interference

Technical Field

The present application relates to the technical field of communication base stations, and in particular to an intelligent method for precise positioning based on UWB base station anti-interference.

Background Art

Ultra Wide Band (UWB) technology is a wireless carrier communication technology that does not use a sinusoidal carrier but uses nanosecond non-sinusoidal narrow pulses to transmit data, so it occupies a wide spectrum range. Since the short pulse signals of ultra-wideband technology carry a large amount of information per unit time and are easy to analyze, they have been widely used in the civilian market. However, traditional short pulse electromagnetic waves have concentrated energy and long directional transmission distances, making it difficult to achieve the technical effect of a wide range of propagation. Therefore, manufacturers currently using ultra-wideband technology are faced with the dilemma of low ability of short pulse signals to resist interference from obstacles. To this end, it is necessary to propose an intelligent method based on UWB base station anti-interference and precise positioning.

Summary of the invention

Based on this, it is necessary to provide an intelligent method for precise positioning based on UWB base station anti-interference in order to address the problem of low ability of short pulse signals to resist interference from obstacles.

The present application provides an intelligent method for precise positioning based on UWB base station anti-interference, including:

Receive the sine wave frequency of the network access system;

Analyze the duty cycle of short pulses corresponding to the sine wave frequency based on pulse width modulation technology;

The target short pulse waveform is determined by using the duty cycle of the short pulse;

Select a characteristic frequency band;

Determine whether the characteristic frequency band matches the frequency band of the target short pulse waveform;

If the characteristic frequency band does not match the frequency band of the target short pulse waveform, return to the step of selecting a characteristic frequency band until all characteristic frequency bands are selected;

If the characteristic frequency band matches the frequency band of the target short pulse waveform, a fundamental wave dot matrix is generated;

Utilize the fundamental wave dot pattern to execute the sinusoidal electromagnetic wave sending procedure.

Furthermore, using one cycle of the sine wave frequency of the grid-connected system, an integral value of voltage and time is obtained;

Obtaining the voltage value, period, and effective voltage time of the short pulse based on the integrated value;

Edit the voltage value, period, and effective voltage time of the short pulse;

The starting time point, ending time point, and voltage value of the equivalent short pulse are obtained.

Further, when the sine wave frequency of the access system is a composite sine wave, the sine wave frequency of the access system is analyzed using Fourier transform;

Obtain multiple standard sine wave waveforms;

Select a sine wave waveform;

Return to execute the method of utilizing a cycle of the sine wave frequency of the access system, and obtain the integral value of voltage and time to the start time point, end time point, and voltage value of the equivalent short pulse;

Return to selecting a sine wave waveform until all sine wave waveforms are selected.

Furthermore, the period of the shortest pulse is selected;

Take one tenth of the period of the smallest short pulse as the mark time;

At the starting time point of the mark time and the ending time point of the mark time, a mark pseudo pulse is formed;

A marker pulse is added at the start and end points of each equivalent short pulse cycle.

Furthermore, the marker pseudo pulse, each equivalent short pulse, and the marker pseudo pulse are arranged in sequence to form an arrangement order of the duty cycle of the short pulses corresponding to the sinusoidal wave frequency.

Further, the arrangement order of the blanking ratio of the short pulses corresponding to the sine wave frequency is called;

Select a short pulse voltage value;

Generate a peak value of the fundamental wave corresponding to the voltage value;

The voltage value of selecting a short pulse is returned until the voltage values of all short pulses are selected.

Furthermore, an equivalent short pulse is selected;

Generate a period length of the fundamental wave corresponding to the equivalent short pulse;

Return to the step of selecting an equivalent short pulse until all equivalent short pulses are selected.

Further, the mark pseudo pulse is called;

Generate a peak value of the fundamental wave of the marker pseudo pulse;

Generates the period length of the fundamental wave of the marker pseudo pulse.

Further, the arrangement order of the blanking ratio of the short pulses corresponding to the sine wave frequency is called;

Generate fundamental wave dot plot;

Calling the peak value of each fundamental wave, the cycle length of each fundamental wave, and the peak value of the fundamental wave and the cycle length of the fundamental wave of the marking pseudo-pulse;

Execute the sinusoidal electromagnetic wave sending program.

The present application also provides an anti-interference positioning system based on a UWB base station, comprising:

A host computer, used to execute the intelligent method based on UWB base station anti-interference and precise positioning;

The fundamental wave transmitting unit is communicatively connected with the host computer.

The present application relates to an intelligent method for precise positioning based on anti-interference of UWB base stations. By receiving the sine wave frequency of the network access system, the order of short pulses corresponding to the sine wave frequency is determined, and based on the duty cycle of each short pulse, a fundamental wave interference signal with a sine wave waveform is generated. The fundamental wave interference signal is a simulated short pulse combination signal. Converting the traditional short pulse signal into a fundamental wave interference signal is beneficial to improving the signal propagation range of the UWB base station. When the fundamental wave is blocked by a building, the fundamental wave with a sine wave waveform will be reflected at the same time, which ensures that the fundamental wave interference signal will not be distorted, thereby improving the model anti-interference ability of the UWB base station.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

FIG1 is a flow chart of an intelligent method for precise positioning based on UWB base station anti-interference provided in an embodiment of the present application.

FIG2 is a schematic diagram of an analytical composite sine wave of an intelligent method for precise positioning of a UWB base station based on anti-interference provided in an embodiment of the present application.

FIG3 is a simplified diagram of equivalent pulses of an intelligent method for precise positioning based on UWB base station anti-interference provided in an embodiment of the present application.

FIG4 is a fundamental wave dot matrix diagram of a UWB base station anti-interference positioning system provided in an embodiment of the present application.

FIG. 5 is a side view of a locking assembly in a locking device provided in an embodiment of the present application.

Reference numerals:

100-host computer; 200-fundamental wave transmitting unit.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

The present application provides an intelligent method for precise positioning based on UWB base station anti-interference.

As shown in FIG1 , in one embodiment of the present application, an intelligent method for precise positioning based on UWB base station anti-interference includes:

S100, receiving the sine wave frequency of the network access system.

Specifically, the electromagnetic wave of the verification information required by the network access system may be a standard sinusoidal wave waveform, or may be a composite sinusoidal wave waveform.

When the electromagnetic wave pattern of the verification information is a composite sinusoidal waveform, the composite sinusoidal waveform can be decomposed using the Fourier transform formula to form multiple standard sinusoidal waveforms.

S200, based on pulse width modulation technology, analyzes the duty cycle of short pulses corresponding to the sine wave frequency.

Specifically, as shown in FIG. 3 , taking a standard sinusoidal waveform as an example, the sinusoidal wave signal is integrated with time within one cycle of the sinusoidal wave to obtain the duty ratio of the short pulse corresponding to the sinusoidal wave.

S300, determining a target short pulse waveform by using the duty cycle of the short pulse.

Specifically, the target short pulse waveform is actually obtained by combining a series of short pulse signals.

S400, select a characteristic frequency band.

S500, determining whether the characteristic frequency band matches the frequency band of the target short pulse waveform.

S600, if the characteristic frequency band does not match the frequency band of the target short pulse waveform, return to the step of selecting a characteristic frequency band until all characteristic frequency bands are selected.

S700: If the characteristic frequency band matches the frequency band of the target short pulse waveform, a fundamental wave dot matrix diagram is generated.

S800, using the fundamental wave dot pattern, executes the sinusoidal electromagnetic wave sending program.

The present application relates to an intelligent method for precise positioning based on anti-interference of UWB base stations. By receiving the sine wave frequency of the network access system, the order of short pulses corresponding to the sine wave frequency is determined, and based on the duty cycle of each short pulse, a fundamental wave interference signal with a sine wave waveform is generated. The fundamental wave interference signal is a simulated short pulse combination signal. Converting the traditional short pulse signal into a fundamental wave interference signal is beneficial to improving the signal propagation range of the UWB base station. When the fundamental wave is blocked by a building, the fundamental wave with a sine wave waveform will be reflected at the same time, which ensures that the fundamental wave interference signal will not be distorted, thereby improving the model anti-interference ability of the UWB base station.

In one embodiment of the present application, after S100 and before S200, the method includes:

S111, using one cycle of the sine wave frequency of the grid-connected system, obtain an integral value of voltage and time.

S112, obtaining the voltage value, period, and effective voltage time of the short pulse based on the integrated value.

S113, editing the voltage value, period, and effective voltage time of the short pulse.

S114, obtaining the start time point, end time point, and voltage value of the equivalent short pulse.

Specifically, this embodiment actually utilizes an equivalent short pulse to simulate a short pulse.

More specifically, two electromagnetic waves with sinusoidal waveforms will interfere with each other in space, and the two electromagnetic waves with sinusoidal waveforms will be superimposed. A superimposed area is a point of an equivalent short pulse.

Three electromagnetic waves with sinusoidal waveforms will have two overlapping areas in space, and the two overlapping areas can be regarded as an equivalent short pulse.

In fact, the combined electromagnetic wave of each superimposed area is the combined peak or valley of the two electromagnetic waves. This combined peak or valley will generate a voltage value when acting on the antenna of the mobile device. This voltage value can represent the voltage value of the equivalent short pulse, which also represents the voltage value of the short pulse. The time interval between the two superimposed areas acting on the antenna of the mobile device, that is, the time interval between the start time point and the end time point of the equivalent short pulse, is also the high level time of the short pulse.

In one embodiment of the present application, after S100 and before S200, the method further includes:

S121, when the sine wave frequency of the network access system is a composite sine wave, the sine wave frequency of the network access system is analyzed by using Fourier transform.

S122, obtaining a plurality of standard sinusoidal waveforms.

S123, select a sine wave waveform.

S124, returning to execute the process of utilizing a cycle of the sine wave frequency of the access system, obtaining the integral value of voltage and time to obtain the start time point, end time point, and voltage value of the equivalent short pulse.

S125, returning to the step of selecting a sinusoidal waveform until all sinusoidal waveforms are selected.

Specifically, as shown in FIG. 2 , the sine wave frequency of the network access system is a composite sine wave, and a plurality of standard sine wave waveforms can be analyzed using Fourier transform.

Steps S111 to S114 are performed for each analyzed sine wave.

The multiple equivalent short pulses obtained by analysis are arranged in sequence to form an equivalent short pulse combination corresponding to the sinusoidal wave frequency of the access system.

This equivalent short pulse combination has strong anti-interference and obstacle resistance capabilities, which is beneficial for the base station to transmit its own positioning information to mobile devices.

In one embodiment of the present application, S200 includes:

S211, select the minimum short pulse period.

S212, taking a time length of one tenth of the cycle of the smallest short pulse as the mark time.

S213, forming a mark pseudo pulse at the start time point of the mark time and the end time point of the mark time.

S214, adding a marker pseudo pulse at the start point and end point of the cycle of each equivalent short pulse.

Specifically, since there is a low-level signal period within a complete cycle of the pulse signal, that is, the idle time in the duty cycle, in order to maintain the complete expression or reception of each pulse signal, this embodiment uses a marker pseudo-pulse to separate each complete pulse signal.

In one embodiment of the present application, S200 further includes:

S221, arranging the marker pseudo pulse, each equivalent short pulse, and the marker pseudo pulse in sequence to form an arrangement order of the duty cycle of the short pulses corresponding to the sinusoidal wave frequency.

Specifically, when the sinusoidal wave frequency of the network access system is a composite sinusoidal wave, the two sinusoidal wave signals marking the starting time point of the pseudo-pulse can be sent out first to form an overlapping area of electromagnetic waves corresponding to the starting time point of the pseudo-pulse, and the two sinusoidal wave signals marking the end time point of the pseudo-pulse are sent out last to form an overlapping area of electromagnetic waves corresponding to the end time point of the pseudo-pulse.

At the moment between the starting time point of the marker pseudo-pulse and the ending time point of the marker pseudo-pulse, multiple electromagnetic waves can be released in sequence to form multiple equivalent short pulses.

In one embodiment of the present application, S300 includes:

S311, calling the arrangement order of the duty cycle of the short pulses corresponding to the sine wave frequency.

S312, select a short pulse voltage value.

S313, generating a peak value of a fundamental wave corresponding to a voltage value.

S314, returning to the process of selecting a voltage value of a short pulse until all voltage values of the short pulses are selected.

Specifically, currently, an electromagnetic wave receiving antenna that can receive a sinusoidal wave waveform can parse out a corresponding voltage value according to the combined peak size of the electromagnetic wave with the sinusoidal wave waveform.

Based on this, the peak value of the fundamental wave can be deduced. Under effective energy loss, the peak value loss of the fundamental wave can be ignored, that is, the original peak value.

In one embodiment of the present application, S300 further includes:

S321, select an equivalent short pulse.

S322, generating a period length of a fundamental wave corresponding to the equivalent short pulse.

S323, returning to the step of selecting an equivalent short pulse until all equivalent short pulses are selected.

Specifically, the period of the equivalent short pulse includes a high level time and a low level time, that is, the time between the start time point of the equivalent short pulse and the end time point of the equivalent short pulse, and this time is the high level time. When multiple groups of equivalent short pulses appear, the time between the end time point of the equivalent short pulse and the start time point of the next equivalent short pulse is the low level time.

In one embodiment of the present application, S300 further includes:

S331, calling the mark pseudo pulse.

S332, generating a peak value of the fundamental wave of the marker pulse.

S333, generating the period length of the fundamental wave of the marker pseudo pulse.

Specifically, the electromagnetic wave receiving antenna that can currently receive a sinusoidal wave can parse the corresponding voltage value according to the combined peak size of the electromagnetic wave with a sinusoidal wave. The marker quasi-pulse is similar to the equivalent short pulse generation method. The marker quasi-pulse is used to mark the start and end of the equivalent short pulse combination.

Based on this, the peak value of the fundamental wave can be deduced. Under effective energy loss, the peak value loss of the fundamental wave can be ignored, that is, the original peak value.

In one embodiment of the present application, S800 includes:

S810, calling the arrangement order of the duty ratios of the short pulses corresponding to the sine wave frequency.

S820, generating a fundamental wave dot matrix diagram.

S830, calling the peak value of each fundamental wave, the period length of each fundamental wave, and the peak value of the fundamental wave and the period length of the fundamental wave of the marker pseudo-pulse.

S840, executing the sinusoidal electromagnetic wave sending program.

Specifically, as shown in FIG4 , the fundamental wave dot matrix diagram is actually a diagram of the arrangement of the RF antennas. In FIG4 , the first RF antenna and the second RF antenna can generate a region of superposition of electromagnetic waves corresponding to the starting time point of the pseudo pulse. Finally, the first RF antenna and the penultimate RF antenna can generate a region of superposition of electromagnetic waves corresponding to the ending time point of the pseudo pulse.

The radio frequency antennas between the above radio frequency antennas can be used to generate equivalent short pulses.

The present application provides an anti-interference positioning system based on a UWB base station.

As shown in FIG. 5 , in one embodiment of the present application, a UWB base station-based anti-interference positioning system includes a host computer 100 and a fundamental wave transmitting unit 200 .

The host computer 100 is used to execute the intelligent method based on UWB base station anti-interference and precise positioning.

The fundamental wave transmitting unit 200 is communicatively connected to the host computer 100.

The present application relates to an anti-interference positioning system based on a UWB base station. The host computer 100 determines the arrangement order of short pulses corresponding to the sine wave frequency by receiving the sine wave frequency of the network access system, and generates a fundamental wave interference signal with a sine wave waveform based on the duty ratio of each short pulse. The fundamental wave interference signal is a simulated short pulse combination signal. The fundamental wave transmitting unit 200 converts the traditional short pulse signal into a fundamental wave interference signal, which is beneficial for the UWB base station to improve the signal propagation range. When the fundamental wave is blocked by a building, the fundamental wave with a sine wave waveform will be reflected at the same time, which ensures that the fundamental wave interference signal will not be distorted, thereby improving the model anti-interference ability of the UWB base station.

The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims (10)

1. An intelligent method for precise positioning based on UWB base station anti-interference, characterized in that it includes: receiving the sinusoidal wave frequency of the network access system; analyzing the duty ratio of the short pulse corresponding to the sinusoidal wave frequency based on the pulse width modulation technology; determining the target short pulse waveform by using the duty ratio of the short pulse; selecting a characteristic frequency band; judging whether the characteristic frequency band matches the frequency band of the target short pulse waveform; if the characteristic frequency band does not match the frequency band of the target short pulse waveform, returning to the step of selecting a characteristic frequency band until all characteristic frequency bands are selected; if the characteristic frequency band matches the frequency band of the target short pulse waveform, generating a fundamental wave dot matrix; and executing the sinusoidal electromagnetic wave sending program by using the fundamental wave dot matrix. 2. According to claim 1, the intelligent method for precise positioning based on UWB base station anti-interference is characterized in that after receiving the sinusoidal wave frequency of the network access system and before analyzing the duty cycle of the short pulse corresponding to the sinusoidal wave frequency based on pulse width modulation technology, the method includes: using one cycle of the sinusoidal wave frequency of the network access system to obtain the integral value of voltage and time; obtaining the voltage value, cycle, and effective voltage time of the short pulse based on the integral value; editing the voltage value, cycle, and effective voltage time of the short pulse; obtaining the starting time point, ending time point, and voltage value of the equivalent short pulse. 3. According to claim 2, the intelligent method for precise positioning based on UWB base station anti-interference is characterized in that after receiving the sinusoidal wave frequency of the network access system and before analyzing the duty ratio of the short pulse corresponding to the sinusoidal wave frequency based on pulse width modulation technology, the method also includes: when the sinusoidal wave frequency of the network access system is a composite sinusoidal wave, analyzing the sinusoidal wave frequency of the network access system using Fourier transform; obtaining multiple standard sinusoidal wave waveforms; selecting a sinusoidal wave waveform; returning to executing a cycle of the sinusoidal wave frequency of the network access system, obtaining the integral value of voltage and time to the starting time point, ending time point, and voltage value of the equivalent short pulse; returning to selecting a sinusoidal wave waveform until all sinusoidal wave waveforms are selected. 4. According to claim 3, the intelligent method for precise positioning based on UWB base station anti-interference is characterized in that the pulse width modulation technology is used to analyze the duty cycle of short pulses corresponding to the sinusoidal wave frequency, including: selecting the minimum period of the short pulse; taking the time length of one tenth of the period of the minimum short pulse as the mark time; forming a mark pseudo-pulse at the starting time point and the end time point of the mark time; and adding a mark pseudo-pulse at the starting point and end point of the period of each equivalent short pulse. 5. According to claim 4, the intelligent method for precise positioning based on UWB base station anti-interference is characterized in that the pulse width modulation technology is used to analyze the duty cycle of short pulses corresponding to the sinusoidal wave frequency, and it also includes: arranging the marker pseudo pulse, each equivalent short pulse, and the marker pseudo pulse in sequence to form an arrangement order of the duty cycle of short pulses corresponding to the sinusoidal wave frequency. 6. According to claim 5, the intelligent method for precise positioning based on UWB base station anti-interference is characterized in that the target short pulse waveform is determined by utilizing the duty cycle of short pulses, including: calling the arrangement order of the duty cycles of short pulses corresponding to the sinusoidal wave frequency; selecting a voltage value of a short pulse; generating a peak value of the fundamental wave of the corresponding voltage value; returning the voltage value of the selected short pulse until all the voltage values of the short pulses are selected. 7. The intelligent method for precise positioning based on UWB base station anti-interference according to claim 6 is characterized in that the method of determining the target short pulse waveform by utilizing the duty ratio of the short pulse also includes: selecting an equivalent short pulse; generating a period length of the fundamental wave corresponding to the equivalent short pulse; and returning to the method of selecting an equivalent short pulse until all equivalent short pulses are selected. 8. According to claim 7, the intelligent method for UWB base station anti-interference and precise positioning is characterized in that the use of the duty ratio of the short pulse to determine the target short pulse waveform also includes: calling the marker pseudo pulse; generating the peak value of the fundamental wave of the marker pseudo pulse; generating the period length of the fundamental wave of the marker pseudo pulse. 9. According to claim 8, the intelligent method for precise positioning based on UWB base station anti-interference is characterized in that the use of the fundamental wave dot matrix to execute the sinusoidal electromagnetic wave sending program includes: calling the arrangement order of the duty cycle of short pulses corresponding to the sinusoidal wave frequency; generating a fundamental wave dot matrix; calling the peak value of each fundamental wave, the period length of each fundamental wave, and the peak value of the fundamental wave of the marker pseudo-pulse and the period length of the fundamental wave; and executing the sinusoidal electromagnetic wave sending program. 10. A UWB base station anti-interference positioning system, characterized in that it includes: a host computer, used to execute the intelligent method for UWB base station anti-interference precise positioning according to any one of claims 1 to 9; a fundamental wave transmitting unit, which is communicatively connected to the host computer.