CN117665722A - Control method of FMCW radar, electronic device and storage medium - Google Patents
Control method of FMCW radar, electronic device and storage medium Download PDFInfo
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Abstract
The embodiment of the application relates to the technical field of radars, and discloses a control method, electronic equipment and a storage medium of an FMCW radar. Monitoring whether the FMCW module transmits a waveform; acquiring configuration information to be written into a storage module when the FMCW module transmits waveforms; the configuration information is used to determine parameter information for a target circuit, which is a control circuit associated with the FMCW module transmit waveform. Because the configuration information can determine the parameter information of the target circuit associated with the FMCW module transmission waveform, the scheme can realize dynamic adjustment of the FMCW transmission waveform.
Description
Technical Field
The embodiment of the application relates to the technical field of radars, in particular to a control method of an FMCW radar, electronic equipment and a storage medium.
Background
When the frequency modulated continuous wave (Frequency Modulated Continuous Wave, FMCW) radar works, the parameters of the chip need to be dynamically adjusted in part of the scene to improve the stability of the circuit or to improve the performance of the radar chip.
In the prior art, a dynamic adjustment function is generally provided for a part of a module of a chip, but the dynamic adjustment function is very limited, for example, in fig. 1, in the process of transmitting an FMCW radar, the FMCW outputs single bit state information to a selector in the chip, an input end of the selector is connected with two configurations of a register, an output end of the selector is connected with a analog or radio frequency functional circuit, and different configurations are selected to be provided to the internal functional circuit when a single bit signal of the FMCW is turned over.
Disclosure of Invention
An object of the embodiments of the present application is to provide a control method, an electronic device, and a storage medium for an FMCW radar, which are capable of dynamically acquiring configuration information of a storage module to be written when an FMCW module transmits a waveform, and because the configuration information is capable of determining parameter information of a target circuit associated with the FMCW module transmitting the waveform, dynamic adjustment of the FMCW transmitting waveform is achieved.
In order to solve the above technical problems, an aspect of an embodiment of the present application provides a control method of an FMCW radar, including:
monitoring whether the FMCW module transmits a waveform;
acquiring configuration information to be written into a storage module when the FMCW module transmits waveforms; the configuration information is used to determine parameter information of a target circuit, which is a control circuit associated with the FMCW module transmit waveform.
Another aspect of an embodiment of the present application provides an electronic device, including:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of controlling the FMCW radar as described above.
Another aspect of the embodiments of the present application provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements a control method of an FMCW radar as described above.
Compared with the related art, in the embodiment of the application, whether the FMCW module transmits a waveform or not is monitored; acquiring configuration information to be written into a storage module when the FMCW module transmits waveforms; the configuration information is used to determine parameter information for a target circuit, which is a control circuit associated with the FMCW module transmit waveform. Because the configuration information can determine the parameter information of the target circuit associated with the FMCW module transmission waveform, the scheme can realize dynamic adjustment of the FMCW transmission waveform.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is a schematic diagram of a scheme for adjusting FMCW transmit waveforms in the prior art;
fig. 2 is a flowchart of a control method of an FMCW radar provided according to an embodiment of the application;
FIG. 3 is a schematic diagram of execution time and execution content in one chirp period provided according to an embodiment of the present application;
fig. 4 is a schematic diagram of a scheme for adjusting FMCW transmit waveforms provided according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of each embodiment of the present application will be given with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in the various embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments may be mutually combined and referred to without contradiction.
An embodiment of the invention relates to a control method of an FMCW radar, which can be applied to a control module for controlling a TMCW radar emission wave. As shown in fig. 2, the method includes the following steps.
Step 101: the FMCW module is monitored for transmit waveforms.
Specifically, the manner of monitoring whether the FMCW module transmits a waveform may include, but is not limited to, both active monitoring and passive monitoring. The active monitoring is to directly detect whether the FWC module emits a waveform or not by the control module, namely whether a waveform signal is detected or not; the passive monitoring is that the FWC module actively transmits a starting signal to the control module to inform the control module of transmitting the waveform when transmitting the waveform each time, and the control module monitors and judges whether the FMCW module transmits the waveform only according to whether the starting signal transmitted by the FWC module is received or not.
Step 102: acquiring configuration information to be written into a storage module when the FMCW module transmits waveforms; the configuration information is used to determine parameter information of a target circuit, which is a control circuit associated with the FMCW module transmit waveform.
Specifically, when the control module monitors the emission waveform of the FMCW module, configuration information to be written into the storage module is obtained. The configuration information is used for determining parameter information of a target circuit, the working state of the target circuit can be changed through different determined parameter information, and the target circuit is a control circuit associated with the FMCW module transmitting waveform and can control the form of the transmitting waveform, so that the FMCW module transmitting waveform can be dynamically controlled by flexibly acquiring the configuration information of the storage module to be written.
The function and structure of the target circuit in this embodiment are not limited, and may include, but are not limited to: at least one of digital circuitry, analog circuitry, and radio frequency circuitry.
The structure and storage type of the storage module in this embodiment are not limited, and may include, but are not limited to: at least one of a storage unit, a register and a memory.
It should be noted that, the control method of the FMCW radar in this embodiment is significantly different from the prior art in that: in the prior art, configuration information for determining parameter information of a target circuit (a control circuit for controlling an FMCW transmission waveform) is written in advance and stored in a register, and when the FMCW transmission waveform is transmitted, only different configuration information is needed to be turned over and selected; in this embodiment, the configuration information for determining the parameter information of the target circuit (the control circuit for controlling the FMCW transmission waveform) is not written in advance and stored in the register, but is temporarily acquired and written in the memory module during the FMCW transmission waveform, so that the flexibility of matching the acquired configuration information with the control FMCW transmission waveform can be further improved.
In this embodiment, a specific process of how the control module obtains the configuration information of the storage module to be written is not limited, for example, the control module may flexibly analyze and obtain the configuration information from a memory in which the configuration information is stored in advance, or may receive the configuration information issued by an external module, and so on.
In some embodiments, obtaining the configuration information of the memory module to be written may include the following steps one to two.
Step one: command information is acquired from the command memory based on the acquired acquisition parameters for instructing the acquisition of the command.
Specifically, in this embodiment, a command memory is preset, where a plurality of pieces of command information are stored in the command memory, and each piece of command information includes configuration information of a memory module to be written. When the FMCW module transmits waveforms, the control module can execute the acquisition of command information from the command memory only according to the acquired acquisition parameters for indicating the acquisition of the command, and then analyze the acquired command information to acquire the configuration information to be written into the memory module.
The acquisition parameters used for indicating the command acquisition are related rules or acquisition processes, methods and the like for indicating how to acquire the command from the command memory. The control module executes the command acquisition process according to the indication of the acquisition parameters, so that different command information can be flexibly acquired by flexibly setting the acquisition parameters, and different configuration information can be obtained by analysis, thereby realizing the dynamic adjustment of the transmitting waveform of the FMCW module.
The acquisition of the acquisition parameters may be stored in the control module in advance, or may be temporarily received by the control module from an external module, and the acquisition mode of the acquisition parameters is not limited in this embodiment.
In some embodiments, the control module may receive the acquisition parameters indicating the command acquisition from the outside when the FMCW module transmits the waveform.
In some embodiments, acquiring the parameters may include: the execution time information of the execution command acquisition and/or the execution content information of the execution command acquisition are/is executed in one chirp period.
In executing command acquisition, the most important thing is the time of command acquisition and the specific acquisition process of command acquisition, i.e. the execution content. Considering that when the FMCW module transmission waveform is controlled, the chirp period of the transmission waveform is generally taken as the control period, the present embodiment sets the acquisition parameters to: the execution time information of the execution command acquisition and/or the execution content information of the execution command acquisition are/is executed in one chirp period.
Accordingly, in the case of acquiring command information from the command memory based on the acquired acquisition parameters for indicating command acquisition, it may include: in one chirp period: the command information is acquired from the command memory when the execution time indicated by the execution time information arrives, and/or the execution content indicated by the execution content information is executed on the command memory to acquire the command information.
As shown in fig. 3, a schematic diagram of the execution time of executing command acquisition and the execution content of executing command acquisition in one chirp period is exemplarily given. The figure contains two execution times (time 1 and time 2) and execution contents (execution 1 and execution 2) corresponding to each execution time.
It should be noted that, in the specific application process, the execution time of the execution command acquisition and the execution content of the execution command acquisition may be indicated separately or may be indicated jointly.
When the execution time information for indicating the acquisition of the execution command is fixed in advance, the execution content information for indicating the acquisition of the execution command is only required to be indicated through the acquisition parameters each time, and the configuration information of different storage modules to be written can be acquired through flexibly setting the execution content information, so that the adjustment of the transmitting waveform of the FMCW module is realized in different adjustment modes.
Similarly, when the execution content information for indicating the execution command to acquire is fixed in advance, the execution time information acquired by the execution command is only required to be indicated by the acquisition parameter each time, and the configuration information to be written into the storage module can be acquired at different time points through flexibly setting the execution time information, so that the adjustment of the transmission waveform of the FMCW module is realized at different time points.
When the combination of the execution time information and the execution content information for executing the command acquisition is indicated, configuration information of different content to be written into the storage module can be acquired at different time points through flexibly setting the execution time information and the execution content information, and further, the adjustment of the transmission waveform of the FMCW module is realized in different adjustment modes at different time points.
In the present embodiment, the specific contents of the execution time information and the execution content information acquired by the execution command are not limited.
In some embodiments, the execution time information may include, but is not limited to: the number of times the command acquisition is executed in one chirp period, and/or the time at which the command acquisition is executed each time, and/or the execution period at which the command acquisition is executed.
Wherein the execution times define the start times of executing command acquisition in one chirp period; the time for executing command acquisition defines a starting time node for executing command acquisition each time; the execution period defines how many commands executed in successive chirp periods are repeatedly executed in one cycle period as a whole in the subsequent chirp period.
For example, as shown in table 1, when the execution cycle is 1, it represents that each chirp cycle is regarded as one cycle, and the operation of executing command fetch is the same in each chirp cycle (fetching command information of 0 to n in the memory address). As shown in table 2, when the execution period is 2, it represents that every two chirp periods are one cycle period, the command acquisition is executed in the current two chirp periods (for example, chirp1 and chirp 2) as one cycle period, and the same command information is repeatedly executed in the cycle period formed by every two subsequent chirp periods (for example, the command acquisition actions of chirp1 and chirp2 are repeated for the whole of chirp3 and chirp4, the command information of 0 to n in the memory address is acquired, and the like).
Table 1 execution period=1
Table 2 execution period = 2
In some embodiments, executing content information may include, but is not limited to: the execution command fetches the number of fetched commands at one time, and/or the starting offset address of the fetched commands in the command memory, and/or the address interval of the fetched commands in the command memory.
Wherein the number of commands acquired by executing the command acquisition once defines the number of commands which can be acquired from the command memory every time the command acquisition is started; the initial offset address of the command acquired by executing the command acquisition once in the command memory defines that the offset address of the first command in the command memory in the plurality of commands can be acquired from the command memory when each time of command acquisition is started (for example, after the first command is acquired from the initial offset address, a pointer moves to the next offset address to continuously acquire the subsequent command); the address interval of the command in the command memory defines that a plurality of commands can be fetched from the command memory every time a command fetch is started, and addresses of the commands in the command memory are not continuous but have address intervals, and the commands should be fetched according to the address interval requirement (for example, the address interval is 1, after the first command is fetched from the start offset address, commands stored in the next address are fetched every other address, such as fetching command information stored in address 1, address 3, address 5.
Step two: and analyzing the configuration information to be written into the storage module from the command information.
After the command information is obtained, the command information can be analyzed, so that configuration information of the memory module to be written is obtained.
In some embodiments, as shown in table 3, the storage manner of the command information in the command memory may be: a memory address correspondingly stores a piece of command information; the command information includes: register address and register data.
TABLE 3 Command memory
Correspondingly, the parsing the configuration information to be written into the storage module from the command information includes: and resolving the register address and the register data from the command information, and taking the register data as configuration information to be written into the register address.
Specifically, after a piece of command information is acquired, the command information may be subjected to data format analysis to obtain a register address that can be identified, and register data that can be written into a register. The resolved register address may be regarded as an address in the storage module for writing configuration information (the register is a storage module), and the resolved register data in the same command information as the register address is the register data to be written into the register address, that is, the configuration information of the storage module to be written into.
In some examples, after obtaining the configuration information to be written to the memory module, further execution may be performed: and writing the acquired configuration information into the storage module so that the storage module determines the parameter information of the target circuit according to the written configuration information. Thus, the target circuit can control the FMCW transmitting waveform according to the determined new parameter information, thereby realizing the adjustment of the transmitting waveform.
As shown in fig. 4, a scheme for adjusting FMCW transmission waveforms in the embodiment of the present application is provided in connection with the above method steps. As can be seen by comparing fig. 4 and fig. 1, in the embodiment of the present application, the conventional selector is removed, and configuration information is temporarily written into the register by the control module during the transmission of the FMCW module, where the configuration information is used to determine the parameter information of the functional circuit (control circuit) related to the FMCW transmission waveform. Further, the configuration information written by the control module is obtained after being parsed based on the command information obtained from the command memory, and the operation of the control module to obtain the command information can also be configured by the command obtaining parameters. That is, the embodiment of the present application may dynamically determine the configuration information in the register in all three links, alone or in combination.
Firstly, the control module can dynamically write configuration information into the register, and compared with the traditional method for fixing the configuration information into the register, the flexibility of writing the configuration information is higher;
secondly, the control module can dynamically read command information from the command memory according to the acquisition parameters so as to analyze configuration information from the command information, thereby increasing the flexibility of acquiring the configuration information;
second, the command information in the command memory can be flexibly adjusted, so that the flexibility of setting the content of the configuration information is improved.
In summary, the control scheme of the FMCW radar provided by the embodiment of the application can more flexibly determine the parameter information of the target circuit, and further more flexibly control the transmitting waveform of the FMCW module.
Compared with the related art, the embodiment monitors whether the FMCW module transmits waveforms or not; acquiring configuration information to be written into a storage module when the FMCW module transmits waveforms; the configuration information is used to determine parameter information for a target circuit, which is a control circuit associated with the FMCW module transmit waveform. Because the configuration information can determine the parameter information of the target circuit associated with the FMCW module transmission waveform, the scheme can realize dynamic adjustment of the FMCW transmission waveform.
Another embodiment of the invention is directed to an electronic device, as shown in fig. 5, comprising at least one processor 202; and a memory 201 communicatively coupled to the at least one processor 202; wherein the memory 201 stores instructions executable by the at least one processor 202, the instructions being executable by the at least one processor 202 to enable the at least one processor 202 to perform any one of the method embodiments described above.
Where memory 201 and processor 202 are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting together various circuits of one or more of the processor 202 and memory 201. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 202 is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor 202.
The processor 202 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 201 may be used to store data used by processor 202 in performing operations.
Another embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The computer program, when executed by a processor, implements any of the method embodiments described above.
That is, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program stored in a storage medium, where the program includes several instructions for causing a device (which may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps in the methods of the embodiments described herein. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the invention and that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (12)
1. A control method of an FMCW radar, comprising:
monitoring whether the FMCW module transmits a waveform;
acquiring configuration information to be written into a storage module when the FMCW module transmits waveforms; the configuration information is used to determine parameter information of a target circuit, which is a control circuit associated with the FMCW module transmit waveform.
2. The method of claim 1, wherein the obtaining configuration information of the memory module to be written comprises:
acquiring command information from a command memory based on acquired acquisition parameters for instructing command acquisition;
and analyzing the configuration information of the storage module to be written from the command information.
3. The method as recited in claim 2, further comprising:
and when the FMCW module transmits the waveform, the acquisition parameters for indicating command acquisition are received.
4. A method according to claim 3, wherein the acquisition parameters comprise: executing time information acquired by executing the command and/or executing content information acquired by executing the command in one chirp period;
based on the acquired acquisition parameters for indicating the acquisition of the command, acquiring the command information from the command memory includes:
in one chirp period: and acquiring command information from a command memory when the execution time indicated by the execution time information arrives, and/or executing the execution content indicated by the execution content information on the command memory to acquire the command information.
5. The method of claim 4, wherein the execution time information comprises: the number of times the command acquisition is executed in one chirp period, and/or the time at which the command acquisition is executed each time, and/or the execution period at which the command acquisition is executed.
6. The method of claim 4, wherein the executing content information comprises: the execution command fetches the fetched number of commands at one time, and/or the start offset address of the fetched commands in the command memory, and/or the address interval of the fetched commands in the command memory.
7. The method according to any one of claims 2-6, wherein the command information is stored in the command memory in the following manner: a memory address correspondingly stores a piece of command information; the command information includes: register addresses and register data;
the step of analyzing the configuration information of the storage module to be written from the command information comprises the following steps:
and analyzing the register address and the register data from the command information, and taking the register data as the configuration information to be written into the register address.
8. The method as recited in claim 1, further comprising:
and writing the acquired configuration information into the storage module so that the storage module can determine the parameter information of the target circuit according to the written configuration information.
9. The method of claim 1, wherein the target circuit comprises: at least one of digital circuitry, analog circuitry, and radio frequency circuitry.
10. The method of claim 1, wherein the memory module comprises: at least one of a storage unit, a register and a memory.
11. An electronic device, comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of controlling an FMCW radar according to any of claims 1-10.
12. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method of controlling an FMCW radar according to any one of claims 1-10.
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