CN-121987345-A - Positioning signal processing method, device, system, electronic equipment, storage medium and computer program product

CN121987345ACN 121987345 ACN121987345 ACN 121987345ACN-121987345-A

Abstract

The embodiment of the application provides a positioning signal processing method, a positioning signal processing device, a signal processing system, electronic equipment, a storage medium and a computer program product, wherein the positioning signal processing method comprises the steps of acquiring a positioning signal and a synchronous pulse signal, wherein the synchronous pulse signal is obtained based on a positioning initial signal, and the positioning signal is obtained based on an envelope initial signal acquired from a second target device under the condition that the first target device receives the positioning initial signal; the method comprises the steps of determining a symbol of a positioning signal based on the positioning signal and the synchronous pulse signal, detecting the positioning signal, determining an amplitude of the positioning signal, and outputting the symbol and the amplitude, wherein the symbol and the amplitude are used for positioning target equipment, and the target equipment comprises the second target device.

Inventors

Xia Shuhe
XU CHENGKAI
LI JIANYONG

Assignees

深圳迈微医疗科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260107

Claims (20)

1. A positioning signal processing method, the method comprising: Acquiring a positioning signal and a synchronous pulse signal, wherein the synchronous pulse signal is obtained based on a positioning initial signal, and the positioning signal is obtained based on an envelope initial signal acquired from a second target device when the first target device receives the positioning initial signal; Determining a sign of the positioning signal based on the positioning signal and the synchronization pulse signal; detecting the positioning signal and determining the amplitude of the positioning signal; And outputting the sign and the amplitude, wherein the sign and the amplitude are used for positioning target equipment, and the target equipment comprises the second target device.
2. The method of claim 1, wherein prior to acquiring the positioning signal and the synchronization pulse signal, the method further comprises: The method comprises the steps of carrying out band-pass filtering on a target envelope signal through a first band-pass filter to obtain the positioning signal, wherein the target envelope signal is obtained by preprocessing the envelope initial signal, and the preprocessing comprises the steps of carrying out gain adjustment on the envelope initial signal and sampling the envelope initial signal after the gain adjustment.
3. The method of claim 1, wherein detecting the positioning signal, determining the amplitude of the positioning signal, comprises: Performing peak detection on the positioning signal to obtain a peak-to-peak value of the positioning signal; and determining the amplitude of the positioning signal based on the peak-to-peak value.
4. A method according to claim 3, wherein peak detection of the positioning signal results in a peak-to-peak value of the positioning signal, comprising: performing peak detection on the positioning signal to obtain a plurality of peaks; Determining a positive maximum value and a negative minimum value among the plurality of peaks; the peak-to-peak value is determined based on the positive maximum value and the negative minimum value.
5. A method according to claim 3, wherein determining the amplitude of the localization signal based on the peak-to-peak value comprises: Acquiring a gain value of gain adjustment, a measuring range of an analog-to-digital converter and a reference voltage of the analog-to-digital converter, wherein the analog-to-digital converter is used for sampling an envelope initial signal after the gain adjustment; and obtaining the amplitude of the positioning signal based on the gain value, the peak-to-peak value, the measuring range and the reference voltage.
6. The method of claim 5, wherein deriving the magnitude of the positioning signal based on the gain value, the peak-to-peak value, the span, and the reference voltage comprises: Obtaining a first value based on the reference voltage and the peak-to-peak value; Obtaining a second value based on the measurement range and the gain value; and obtaining the amplitude of the positioning signal based on the first value and the second value.
7. The method according to any one of claims 1 to 6, wherein determining the sign of the positioning signal based on the positioning signal and the synchronization pulse signal comprises: Determining a sign bit of the positioning signal based on a first voltage value of the positioning signal at a first moment and a second voltage value of the positioning signal at a second moment, wherein the first moment is rising edge moment of the synchronous pulse signal, the second moment is falling edge moment of the synchronous pulse signal, and the first moment and the second moment belong to one pulse period.
8. The method of claim 7, wherein determining the sign bit of the positioning signal based on a first voltage value of the positioning signal at a first time and a second voltage value of the positioning signal at a second time comprises: Determining a first sign bit of the positioning signal according to the first voltage value and the second voltage value; determining a second sign bit according to the first voltage value; A sign bit of the positioning signal is determined based on the first sign bit and the second sign bit.
9. The method of claim 8, wherein determining a first sign bit of the positioning signal based on the first voltage value and the second voltage value comprises: If the first voltage value is larger than the second voltage value, determining that a first sign bit of the positioning signal is positive; and if the first voltage value is smaller than or equal to the second voltage value, determining that the first sign bit of the positioning signal is negative.
10. The method of claim 8, wherein determining a second sign bit based on the first voltage value comprises: if the first voltage value is greater than or equal to the first value, the second sign bit of the positioning signal is positive; If the first voltage value is smaller than the first value, the second sign bit of the positioning signal is negative.
11. The method according to any of claims 8 to 10, wherein determining sign bits of the positioning signal based on the first sign bits and the second sign bits comprises: If the first symbol bit and the second symbol bit are the same, determining the symbol bit of the positioning signal as the first symbol bit; and if the first symbol bit and the second symbol bit are different, taking the symbol bit determined in the previous time as the symbol bit of the positioning signal.
12. Method according to claim 1, characterized in that the generation position of the synchronization pulse signal is determined based on the peak position and/or the trough position of the positioning initiation signal.
13. The method of claim 12, wherein the generating strategy of the synchronization pulse signal comprises generating the pulse signal based on a peak position and/or a trough position of a positioning initial signal of a Kth period from among positioning initial signals of a plurality of generated periods, wherein K is an integer greater than 1.
14. The signal processing system is characterized by comprising at least one signal processing device, wherein each signal processing device comprises at least one positioning signal processing device; each positioning signal processing device is used for acquiring a positioning signal and a synchronous pulse signal, wherein the synchronous pulse signal is obtained based on a positioning initial signal, and the positioning signal is obtained based on an envelope initial signal acquired from a second target device when the first target device receives the positioning initial signal; Determining a sign of the positioning signal based on the positioning signal and the synchronization pulse signal; detecting the positioning signal and determining the amplitude of the positioning signal; And outputting the sign and the amplitude, wherein the sign and the amplitude are used for positioning target equipment, the target equipment comprises at least one second target device, and each signal processing device corresponds to one second target device.
15. The signal processing system of claim 14, further comprising an analog-to-digital converter and at least one envelope signal processing module, each of said envelope signal processing modules corresponding to one of said signal processing devices; each of the envelope signal processing modules is used for acquiring an envelope initial signal from the corresponding second target device; each envelope signal processing module is further configured to process the envelope initial signal to obtain an intermediate envelope signal, and transmit the intermediate envelope signal to the analog-to-digital converter; The analog-to-digital converter is used for carrying out signal acquisition on the intermediate envelope signal to obtain a target envelope signal, and transmitting the target envelope signal to the first band-pass filter circuit; And each first band-pass filter circuit is used for filtering the target envelope signal to obtain the positioning signal.
16. The signal processing system of claim 15, wherein each of the envelope signal processing modules comprises at least one of: The first low-pass filter circuit is used for carrying out low-pass filtering on the envelope initial signal so as to filter power frequency noise caused by external environment; the amplifying circuit is used for removing the direct current component in the envelope initial signal and amplifying the envelope initial signal after the direct current component is removed; A gain adjustment circuit for performing gain adjustment on the envelope initial signal; The second low-pass filter circuit is used for carrying out low-pass filtering on the envelope initial signal so as to remove high-frequency components above preset frequency in the envelope signal; And the differential output circuit is used for converting the envelope initial signal into a differential signal.
17. The signal processing system of claim 15 or 16, further comprising a digital isolator connected between the analog-to-digital converter and at least one of the signal processing devices; The digital isolator is used for signal isolation.
18. The signal processing system of claim 15, wherein each of the signal processing devices further comprises a bioelectric signal processing device comprising: the second band-pass filter circuit is used for filtering the target envelope signal to obtain the bioelectric signal; the operation module is used for obtaining the frequency information of the bioelectric signal by performing fast Fourier transform on the bioelectric signal, and obtaining the actual mains frequency based on the preset frequency and the frequency information; The wave trap is used for removing a power frequency signal and higher harmonics of the power frequency signal in the bioelectric signal, and the parameters of the wave trap are determined based on the actual mains frequency; The system comprises a bioelectric signal amplitude determining module, a bioelectric signal amplitude determining module and a control module, wherein the bioelectric signal amplitude determining module is used for carrying out peak detection on the bioelectric signal to obtain a peak value of the bioelectric signal, and determining the amplitude of the bioelectric signal based on the peak value of the bioelectric signal.
19. A positioning signal processing apparatus, comprising: The acquisition module is used for acquiring a positioning signal and a synchronous pulse signal, wherein the synchronous pulse signal is obtained based on a positioning initial signal, and the positioning signal is obtained based on an envelope initial signal acquired from a second target device when the first target device receives the positioning initial signal; a symbol determining module, configured to determine a symbol of the positioning signal based on the positioning signal and the synchronization pulse signal; The positioning signal amplitude determining module is used for detecting the positioning signal and determining the amplitude of the positioning signal; and the output module is used for outputting the sign and the amplitude, wherein the sign and the amplitude are used for positioning target equipment, the target equipment comprises at least one second target device, and each signal processing device corresponds to one second target device.
20. An electronic device comprising a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory for performing the positioning signal processing method according to any of claims 1 to 13.

Description

Positioning signal processing method, device, system, electronic equipment, storage medium and computer program product Technical Field The present application relates to the field of signal processing technology, and in particular, to a positioning signal processing method, a positioning signal processing device, a signal processing system, an electronic device, a storage medium, and a computer program product. Background Cardiac three-dimensional mapping is an electrophysiology technique for arrhythmia diagnosis and treatment that facilitates accurate localization of abnormal cardiac rhythm origins or conduction pathways by constructing a three-dimensional model of the heart and mapping electrical activity. In the construction process of the heart three-dimensional model, a mapping catheter with a magnetic field/electric field sensor is used for probing the inner wall of the heart chamber point by point so as to synchronously collect the position and the electric signal of each point in the heart chamber, and the three-dimensional model is constructed by accumulating the point by point probing and the coordinates of the inner wall of the heart chamber. Thus, catheter localization is critical to the construction of a three-dimensional model of the heart. Disclosure of Invention The application provides a positioning signal processing method, a positioning signal processing device, a signal processing system, an electronic device, a storage medium and a computer program product. In some embodiments, a positioning signal processing method is provided, including: Acquiring a positioning signal and a synchronous pulse signal, wherein the synchronous pulse signal is obtained based on a positioning initial signal, and the positioning signal is obtained based on an envelope initial signal acquired from a second target device when the first target device receives the positioning initial signal; Determining a sign of the positioning signal based on the positioning signal and the synchronization pulse signal; detecting the positioning signal and determining the amplitude of the positioning signal; And outputting the sign and the amplitude, wherein the sign and the amplitude are used for positioning target equipment, and the target equipment comprises the second target device. In some embodiments, there is also provided a positioning signal processing apparatus including: The acquisition module is used for acquiring a positioning signal and a synchronous pulse signal, wherein the synchronous pulse signal is obtained based on a positioning initial signal, and the positioning signal is obtained based on an envelope initial signal acquired from a second target device when the first target device receives the positioning initial signal; a symbol determining module, configured to determine a symbol of the positioning signal based on the positioning signal and the synchronization pulse signal; The positioning signal amplitude determining module is used for detecting the positioning signal and determining the amplitude of the positioning signal; and the output module is used for outputting the sign and the amplitude, wherein the sign and the amplitude are used for positioning target equipment, the target equipment comprises at least one second target device, and each signal processing device corresponds to one second target device. In some embodiments, there is also provided a signal processing system comprising at least one signal processing device, each signal processing device comprising at least one positioning signal processing device; Each positioning signal processing device is used for acquiring a positioning signal and a synchronous pulse signal, wherein the synchronous pulse signal is obtained based on a positioning initial signal, and the positioning signal is obtained based on an envelope initial signal acquired from a second target device when the first target device receives the positioning initial signal; Determining a sign of the positioning signal based on the positioning signal and the synchronization pulse signal; detecting the positioning signal and determining the amplitude of the positioning signal; And outputting the sign and the amplitude, wherein the sign and the amplitude are used for positioning target equipment, the target equipment comprises at least one second target device, and each signal processing device corresponds to one second target device. In some embodiments, there is also provided an electronic device including a processor and a memory for storing a computer program, the processor being configured to invoke and run the computer program stored in the memory, to perform the positioning signal processing method provided by any of the embodiments of the present application. In some embodiments, a storage medium is also provided for storing a computer program that causes a computer to execute the positioning signal processing method provided by any one of the embodiments of the present ap