CN117254774B - A frequency control method and system for an electronic oscillator - Google Patents

Abstract

The invention discloses a frequency control method and system for an electronic oscillator, specifically related to the technical field of oscillator control, and includes a data processing module and an information collection module, an adjustment judgment module and a status judgment module that are communicatively connected to the data processing module; through collection The radio frequency communication information and environmental impact information calculate the adjustment condition evaluation coefficient, and determine whether the frequency of the radio frequency oscillator needs to be adjusted by comparing it with the adjustment evaluation threshold; the system can automatically adjust the frequency of the radio frequency oscillator to adapt to the current environment and improve communication performance and reliability, thereby improving transmission performance; calculating the frequency adjustment ratio by judging the number of frequency adjustment signals and normal working signals, and sending out replacement adjustment signals, which helps to timely detect oscillator problems, accurately assess the frequency adjustment situation, and take Repair or replace measures to ensure the normal operation of the oscillator and the stability of the wireless sensor network.

Description

A frequency control method and system for an electronic oscillator

Technical field

The present invention relates to the technical field of oscillator control. More specifically, the present invention relates to a frequency control method and system for an electronic oscillator.

Background technique

Radio frequency oscillator is an electronic oscillator. Radio frequency oscillator (Radio Frequency Oscillator) is an electronic device or circuit that can generate radio frequency signals. It is commonly used in applications such as wireless communications, radio frequency measurements, radar, radio broadcasting, etc. The basic principle of a radio frequency oscillator is to maintain oscillation through a positive feedback loop; a Wireless Sensor Network (WSN) is a network system composed of a large number of wireless sensor nodes distributed in a wide area. Each sensor node has sensing, The ability to collect and transmit information from the environment. These nodes are connected to each other through wireless communication protocols to form a self-organizing, adaptive network.

In wireless sensor networks, radio frequency oscillators are used to provide wireless communication between sensor nodes. The frequency of the radio frequency oscillator refers to the frequency of the wireless signal generated by the oscillator; the frequency of the radio frequency oscillator should ideally be stable , that is, maintaining a fixed frequency output. However, in practice, the frequency of the RF oscillator may be affected by some factors and drift; these factors include temperature changes, supply voltage changes, device aging, etc., and it is impossible to comprehensively integrate changes in multiple factors. The problem of determining whether to issue frequency adjustment instructions will have a negative impact on the performance of the wireless communication system, such as leading to a decrease in communication quality and an increase in data transmission errors.

In order to solve the above problems, a technical solution is now provided.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, embodiments of the present invention provide a frequency control method and system for an electronic oscillator to solve the problems raised in the above-mentioned background art.

In order to achieve the above objects, the present invention provides the following technical solutions:

A frequency control method for an electronic oscillator, including the following steps:

Step S1: Collect radio frequency communication information and environmental impact information, and calculate the adjustment condition evaluation coefficient through radio frequency communication information and environmental impact information;

Step S2: Set the adjustment evaluation threshold, and determine whether to adjust the frequency of the radio frequency oscillator by comparing the adjustment condition evaluation coefficient with the adjustment evaluation threshold;

Step S3: Calculate the frequency adjustment ratio, and determine the working status of the radio frequency oscillator by comparing the frequency adjustment ratio with the frequency adjustment ratio threshold.

Radio frequency communication information includes frequency deviation information and communication intensity information; environmental impact information includes electromagnetic interference information and voltage fluctuation information; frequency deviation information is reflected by frequency deviation evaluation value, communication intensity information is reflected by RSSI value, and electromagnetic interference information is reflected by bit error value , the voltage fluctuation information is reflected through the voltage fluctuation ratio.

In a preferred embodiment, in step S1, the frequency deviation evaluation value, RSSI value, bit error value and voltage fluctuation ratio are normalized to calculate the adjustment condition evaluation coefficient, the expression of which is :

;

in, Evaluation coefficient for the adjustment condition,/> ,/> ,/> They are the frequency deviation evaluation value, bit error value and voltage fluctuation ratio respectively;/> are the frequency deviation evaluation value, RSSI value, bit error value and the preset proportional coefficient of the voltage fluctuation ratio, respectively, and/> are all greater than 0.

In a preferred embodiment, the frequency deviation evaluation value is obtained by: obtaining the output frequency of the radio frequency oscillator in real time and setting the target frequency; calculating the frequency deviation ratio, which is the ratio of the output frequency of the radio frequency oscillator to the target frequency. The ratio of the deviation value to the target frequency, set the frequency deviation ratio threshold; set the target monitoring interval, and obtain m monitoring points within the target monitoring interval; calculate the number of m monitoring points whose frequency deviation ratio is greater than the frequency deviation ratio threshold, The number of frequency deviation ratios greater than the frequency deviation ratio threshold is marked as n; the frequency deviation evaluation value is the ratio of (n+1) to m;

The bit error value is the average bit error rate within the target monitoring interval;

The method for obtaining the voltage fluctuation ratio is: obtain the real-time voltage value connected to the radio frequency oscillator, set the stable operating voltage range, and calculate the voltage deviation time; calculate the average of the two critical points of the stable operating voltage range; the voltage fluctuation ratio is the voltage deviation The ratio of time divided by the target monitoring interval to the average of the two critical points of the stable operating voltage range.

In a preferred embodiment, in step S2, the adjustment evaluation threshold is set. When the adjustment condition evaluation coefficient is greater than the adjustment evaluation threshold, a frequency adjustment signal is issued; when the adjustment condition evaluation coefficient is less than or equal to the adjustment evaluation threshold, a normal operation signal is issued. Signal.

In a preferred embodiment, in step S3, the judgment interval is set; the number of times the frequency adjustment signal is sent out in the judgment interval is marked as A1, and the number of times the normal operating signal is sent out in the judgment interval is marked as A2; the frequency is calculated Adjust the proportion; set the frequency adjustment proportion threshold. When the frequency adjustment proportion is greater than the frequency adjustment proportion threshold, a replacement adjustment signal is sent; when the frequency adjustment proportion is less than or equal to the frequency adjustment proportion threshold, a normal operation signal is sent.

In a preferred embodiment, a frequency control system for an electronic oscillator includes a data processing module and an information collection module, an adjustment judgment module and a status judgment module that are communicatively connected to the data processing module;

The information collection module collects radio frequency communication information and environmental impact information, and sends the radio frequency communication information and environmental impact information to the data processing module. The data processing module calculates the adjustment condition evaluation coefficient; the adjustment judgment module compares the adjustment condition evaluation coefficient with the adjustment evaluation threshold, Determine whether to adjust the frequency of the radio frequency oscillator; the status judgment module determines the working status of the radio frequency oscillator by comparing the frequency adjustment ratio with the frequency adjustment ratio threshold.

The technical effects and advantages of the frequency control method and system of an electronic oscillator according to the present invention:

1. Calculate the adjustment condition evaluation coefficient by collecting radio frequency communication information and environmental impact information, and determine whether the frequency of the radio frequency oscillator needs to be adjusted by comparing it with the adjustment evaluation threshold; the system can automatically adjust the frequency of the radio frequency oscillator to adapt to the current situation. environment, improve communication performance and reliability, thereby improving transmission performance.

2. Calculate the frequency adjustment ratio by judging the number of frequency adjustment signals and normal working signals. By sending a replacement adjustment signal, it helps to timely discover oscillator problems, accurately evaluate the frequency adjustment situation, and take repair or replacement measures to ensure that the oscillator The normal operation and stability of the wireless sensor network are stable.

Description of the drawings

Figure 1 is a schematic diagram of a frequency control method of an electronic oscillator according to the present invention;

Figure 2 is a schematic structural diagram of a frequency control system of an electronic oscillator according to the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Example 1

Figure 1 shows a frequency control method for an electronic oscillator of the present invention, which includes the following steps:

Step S1: Collect radio frequency communication information and environmental impact information, and calculate the adjustment condition evaluation coefficient based on the radio frequency communication information and environmental impact information.

Step S2: Set the adjustment evaluation threshold, and determine whether to adjust the frequency of the radio frequency oscillator by comparing the adjustment condition evaluation coefficient with the adjustment evaluation threshold.

Step S3: Calculate the frequency adjustment ratio, and determine the working status of the radio frequency oscillator by comparing the frequency adjustment ratio with the frequency adjustment ratio threshold.

In step S1, radio frequency communication information and environmental impact information are collected. Radio frequency communication information includes frequency deviation information and communication intensity information; environmental impact information includes electromagnetic interference information and voltage fluctuation information.

The frequency deviation information is reflected by the frequency deviation evaluation value. The frequency deviation evaluation value is obtained by: obtaining the output frequency of the radio frequency oscillator in real time, setting the target frequency, and judging the degree of deviation of the output frequency from the target frequency; the output frequency of the radio frequency oscillator is consistent with the target frequency. Occasional deviations between frequencies are usually normal and can be accepted and ignored in practical applications; however, if the output frequency deviates from the target frequency multiple times in a short period of time to a large extent, it will affect the wireless sensor. Negatively affects the communication performance of the network.

Calculate the frequency deviation ratio. The frequency deviation ratio is the ratio of the deviation value between the output frequency of the radio frequency oscillator and the target frequency and the target frequency. The greater the frequency deviation ratio, the greater the deviation of the output frequency of the radio frequency oscillator from the target frequency, which will affect the wireless sensor network. The greater the negative impact on communication performance.

Set the frequency deviation ratio threshold. If the frequency deviation ratio is greater than the frequency deviation ratio threshold, it means that the output frequency of the radio frequency oscillator deviates greatly from the target frequency.

Set the target monitoring interval, and obtain m monitoring points within the target monitoring interval. Each monitoring point corresponds to a different frequency deviation ratio; calculate the number of m monitoring points with a frequency deviation ratio greater than the frequency deviation ratio threshold, and divide the frequency deviation into The number whose ratio is greater than the frequency deviation ratio threshold is marked as n; the frequency deviation evaluation value is the ratio of (n+1) and m. The greater the frequency deviation evaluation value, the greater the deviation of the output frequency from the target frequency within the target monitoring interval. The larger the proportion, the greater the negative impact on the communication performance in the wireless sensor network, and the frequency of the radio frequency oscillator needs to be adjusted.

The frequency deviation ratio threshold is set based on the actual situation. For example, through actual testing or simulation, frequency deviation data is collected and the impact of frequency deviation on system performance is evaluated. This can be determined by measuring communication quality indicators (such as transmission rate, coverage, etc.) Evaluate the impact of frequency deviation, and based on the performance evaluation results, an appropriate frequency deviation ratio threshold can be determined.

The target monitoring interval is set based on actual conditions such as monitoring requirements and application scenarios, and will not be described again here.

The target frequency refers to the expected frequency that the RF oscillator should output, that is, under normal operating conditions, the frequency at which the RF oscillator should output stably; the setting of the target frequency usually depends on the specific application and system requirements; in wireless sensor networks, The target frequency may be determined by the following factors: Different communication standards and protocols have specific requirements for frequency; for example, wireless sensor networks may adopt the IEEE 802.15.4 standard, which specifies available frequency channels and frequency bands. The target frequency can be determined according to the standard Requirements are set to ensure compatibility and interoperability with other devices.

Among them, n and m are both positive integers and are set according to the actual situation.

The communication intensity information is reflected by the RSSI value, and its expression is: RSSI=P-10*log10(D)+S; where RSSI is the RSSI value, P is the transmit power of the wireless signal source; S is the receiving sensitivity of the receiving end, That is, the received signal strength; D is the distance between the transmitting signal and the receiving signal.

The size of the RSSI value can be used to evaluate the received signal strength to determine whether the frequency of the radio frequency oscillator needs to be adjusted. A higher RSSI value usually indicates that the received signal strength is stronger, while a lower RSSI value indicates that the received signal strength is stronger. The received signal strength is weak; the RSSI value is usually negative.

The size of the RSSI value has an important impact on judging whether the frequency of the RF oscillator needs to be adjusted. A stronger signal strength may mean that the current frequency setting is suitable for transmission, while a weaker signal strength may require the frequency to be adjusted to improve signal reception and Transmission performance.

Environmental impact information includes electromagnetic interference information and voltage fluctuation information.

Collect electromagnetic interference information. Electromagnetic interference refers to the undesired impact of external electromagnetic fields on electronic equipment or communication signals in wireless sensor networks. Electromagnetic interference may cause errors in transmission, thereby increasing the bit error rate; electromagnetic interference information passes through errors. code value reflected.

Calculate the bit error value. The bit error rate refers to the proportion of erroneous bits in the bit sequence received by the receiving end in a digital communication system. It is one of the important indicators to measure the performance of a digital communication system and is used to evaluate the reliability of signal transmission. ; In wireless sensor networks, calculate the bit error rate, bit error rate = number of error bits/total number of transmitted bits; the size of the bit error rate has a certain impact on judging whether the frequency of the radio frequency oscillator needs to be adjusted, a higher The bit error rate indicates that the reliability of the transmitted signal is low, that is, there are more bit errors in the transmission.

The bit error value is the average bit error rate within the target monitoring interval. If the bit error value is higher, that is, the proportion of error bits is larger within the target monitoring interval, the frequency of the RF oscillator needs to be adjusted to improve signal quality and transmission. reliability.

Voltage fluctuation information is reflected through the voltage fluctuation ratio. The real-time voltage value connected to the radio frequency oscillator is obtained, the stable operating voltage range is set, and the voltage deviation time is calculated. The voltage deviation time is the time when the real-time voltage value in the target monitoring interval is not within the stable operating voltage range. ; Calculate the average value of the two critical points of the stable operating voltage range; the voltage fluctuation ratio is the ratio of the voltage deviation time divided by the target monitoring interval to the average value of the two critical points of the stable operating voltage range; the greater the voltage fluctuation ratio, The more serious the voltage fluctuation of the RF oscillator is, it may affect the frequency stability and performance of the RF oscillator. You should consider adjusting the frequency of the RF oscillator so that it can operate under more stable voltage conditions.

The stable operating voltage range is set based on the actual situation such as the radio frequency oscillator model and voltage safety requirements, and will not be described again here.

The frequency deviation evaluation value, RSSI value, bit error value and voltage fluctuation ratio are normalized to calculate the adjustment condition evaluation coefficient. The expression is:

;

in, Evaluation coefficient for the adjustment condition,/> ,/> ,/> They are the frequency deviation evaluation value, bit error value and voltage fluctuation ratio respectively;/> are the frequency deviation evaluation value, RSSI value, bit error value and the preset proportional coefficient of the voltage fluctuation ratio, respectively, and/> are all greater than 0.

The larger the adjustment condition evaluation coefficient, the more obvious the impact on determining whether the frequency of the radio frequency oscillator needs to be adjusted. When the adjustment condition evaluation coefficient is large, it means the influence of multiple parameters (frequency deviation evaluation value, RSSI value, Bit error value and voltage fluctuation ratio) are in a state where the frequency of the radio frequency oscillator needs to be adjusted.

In step S2, the adjustment evaluation threshold is set, and whether to adjust the frequency of the radio frequency oscillator is determined by comparing the adjustment condition evaluation coefficient with the adjustment evaluation threshold.

When the adjustment condition evaluation coefficient is greater than the adjustment evaluation threshold, a frequency adjustment signal is issued; the frequency of the radio frequency oscillator currently needs to be adjusted; in this case, the corresponding frequency adjustment operation should be performed to adapt the frequency of the oscillator to the current environment. Thereby optimizing the communication performance of wireless sensor networks.

The following methods can be used to adjust the frequency of the RF oscillator:

Adjust the capacitance or inductance: By increasing or decreasing the value of the oscillator capacitance or inductance component, the resonant frequency of the oscillator can be changed, thereby achieving frequency adjustment;

Using a variable frequency source: introducing a variable frequency source as an input signal, by adjusting the frequency of the variable frequency source, the output frequency of the oscillator can be indirectly affected;

Frequency synthesis technology: Using a frequency synthesizer to combine multiple fixed frequency signals according to certain rules, the target frequency can be generated; by adjusting the weight and phase of each fixed frequency signal in the synthesizer, the oscillator frequency can be adjusted;

Loop feedback adjustment: The loop feedback control system is used to monitor the output frequency of the oscillator and adjust it according to the target frequency; by adjusting the control parameters in the feedback loop, precise adjustment of the oscillator frequency can be achieved.

These methods can select appropriate adjustment methods according to specific conditions and requirements to achieve precise adjustment of the frequency of the RF oscillator.

When the adjustment condition evaluation coefficient is less than or equal to the adjustment evaluation threshold, a normal working signal is issued, indicating that the current comprehensive impact on the frequency of the radio frequency oscillator is still within the acceptable range, and the frequency of the radio frequency oscillator is working normally; in this case, it can be maintained The current frequency of the RF oscillator, which continues to operate normally without frequency adjustment operations.

The adjustment evaluation threshold is set based on the size of the adjustment condition evaluation coefficient and the actual application requirements for the frequency of the radio frequency oscillator in the wireless sensor network, which will not be described again here.

By collecting radio frequency communication information and environmental impact information, the frequency of the radio frequency oscillator is monitored and evaluated in real time; the frequency deviation evaluation value, RSSI value, bit error value and voltage fluctuation ratio are normalized to calculate the adjustment condition evaluation coefficient. By comparing with the adjustment evaluation threshold, it is determined whether the frequency of the RF oscillator needs to be adjusted; the system can automatically adjust the frequency of the RF oscillator to adapt to the current environment and improve communication performance and reliability; the frequency adjustment of the RF oscillator can reduce Frequency deviation, enhanced signal strength, and reduced bit error rate, thereby improving transmission performance.

In step S3, the judgment interval is set, and the unit of the judgment interval is time.

Get the number of times the frequency adjustment signal is sent out within the judgment interval, get the number of times the normal working signal is sent out within the judgment interval, mark the number of times the frequency adjustment signal is sent out within the judgment interval as A1, and mark the number of times the frequency adjustment signal is sent out within the judgment interval Marked A2.

Calculate the frequency adjustment ratio, and the frequency adjustment ratio is A1/(A1+A2).

Set the frequency adjustment proportion threshold. If the frequency adjustment proportion is greater than the frequency adjustment proportion threshold, it means that the frequency adjustment signal is sent out in a larger proportion within the judgment interval. By comparing the frequency adjustment proportion with the frequency adjustment proportion threshold, the judgment can be made The working status of the RF oscillator.

When the frequency adjustment ratio is greater than the frequency adjustment ratio threshold, a replacement adjustment signal is sent. At this time, the working condition of the RF oscillator in the judgment interval is relatively poor. According to the replacement adjustment signal sent, professional technicians are arranged to repair or replace the RF oscillator. .

When the frequency adjustment ratio is less than or equal to the frequency adjustment ratio threshold, a normal operation signal is sent. At this time, the radio frequency oscillator is working normally in the judgment interval and no measures are needed.

The frequency adjustment ratio threshold is set based on the size of the judgment interval and actual communication quality requirements for the radio frequency oscillator, and will not be described again here.

The judgment interval and target monitoring interval are set based on the actual application scenarios and usage requirements of the radio frequency oscillator in the wireless sensor network.

Calculate the frequency adjustment ratio by judging the number of frequency adjustment signals and normal operating signals. Set a threshold. When the proportion exceeds the threshold, a replacement adjustment signal is sent. This helps to promptly detect oscillator problems, accurately assess the frequency adjustment situation, and take repair or replacement measures to ensure the normal operation of the oscillator and the stability of the wireless sensor network. Nature is determined.

Example 2

The difference between Embodiment 2 of the present invention and Embodiment 1 is that this embodiment introduces a frequency control system for an electronic oscillator.

Figure 2 shows a schematic structural diagram of a frequency control system for an electronic oscillator according to the present invention. A frequency control system for an electronic oscillator includes a data processing module, an information collection module, an adjustment and judgment module and an information collection module that is communicatively connected to the data processing module. Status judgment module.

The information collection module collects radio frequency communication information and environmental impact information, and sends the radio frequency communication information and environmental impact information to the data processing module. The data processing module calculates the adjustment condition evaluation coefficient.

The adjustment judgment module determines whether to adjust the frequency of the radio frequency oscillator by comparing the adjustment condition evaluation coefficient with the adjustment evaluation threshold.

The status judgment module determines the working status of the radio frequency oscillator by comparing the frequency adjustment ratio with the frequency adjustment ratio threshold.

The above formulas are dimensionless and numerical calculations. The formula is a formula obtained by collecting a large amount of data and conducting software simulation to obtain the latest real situation. The preset parameters and threshold selection in the formula are set by those skilled in the art according to the actual situation.

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server or a data center that contains one or more sets of available media. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media. The semiconductor medium may be a solid state drive.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (4)

1. A frequency control method for an electronic oscillator, characterized in that it includes the following steps: Step S1: Collect radio frequency communication information and environmental impact information, and calculate the adjustment condition evaluation coefficient through radio frequency communication information and environmental impact information; Step S2: Set the adjustment evaluation threshold, and determine whether to adjust the frequency of the radio frequency oscillator by comparing the adjustment condition evaluation coefficient with the adjustment evaluation threshold; Step S3: Calculate the frequency adjustment ratio, and determine the working status of the radio frequency oscillator by comparing the frequency adjustment ratio with the frequency adjustment ratio threshold; Among them, radio frequency communication information includes frequency deviation information and communication intensity information; environmental impact information includes electromagnetic interference information and voltage fluctuation information; frequency deviation information is reflected by frequency deviation evaluation value, communication intensity information is reflected by RSSI value, and electromagnetic interference information is reflected by bit error The voltage fluctuation information is reflected by the voltage fluctuation ratio; In step S1, the frequency deviation evaluation value, RSSI value, bit error value and voltage fluctuation ratio are normalized to calculate the adjustment condition evaluation coefficient. The expression is: ; in, Evaluation coefficient for the adjustment condition,/> ,/> ,/> They are the frequency deviation evaluation value, bit error value and voltage fluctuation ratio respectively;/> are the frequency deviation evaluation value, RSSI value, bit error value and the preset proportional coefficient of the voltage fluctuation ratio, respectively, and/> are all greater than 0. 2. A frequency control method for an electronic oscillator according to claim 1, characterized in that: the method for obtaining the frequency deviation evaluation value is: obtaining the output frequency of the radio frequency oscillator in real time, setting the target frequency; calculating the frequency deviation ratio , the frequency deviation ratio is the ratio of the deviation value between the output frequency of the radio frequency oscillator and the target frequency and the target frequency. Set the frequency deviation ratio threshold; set the target monitoring interval, and obtain m monitoring points within the target monitoring interval; calculate m The number of monitoring points whose frequency deviation ratio is greater than the frequency deviation ratio threshold is marked as n; the frequency deviation evaluation value is the ratio of (n+1) to m; The bit error value is the average bit error rate within the target monitoring interval; The method for obtaining the voltage fluctuation ratio is: obtain the real-time voltage value connected to the radio frequency oscillator, set the stable operating voltage range, and calculate the voltage deviation time; calculate the average of the two critical points of the stable operating voltage range; the voltage fluctuation ratio is the voltage deviation The ratio of time divided by the target monitoring interval to the average of the two critical points of the stable operating voltage range. 3. The frequency control method of an electronic oscillator according to claim 2, characterized in that: in step S2, the adjustment evaluation threshold is set, and when the adjustment condition evaluation coefficient is greater than the adjustment evaluation threshold, a frequency adjustment signal is sent; When the adjustment condition evaluation coefficient is less than or equal to the adjustment evaluation threshold, a normal working signal is issued. 4. The frequency control method of an electronic oscillator according to claim 3, characterized in that: in step S3, the judgment interval is set; the number of times the frequency adjustment signal is sent in the judgment interval is marked as A1, and the judgment interval is The number of normal operating signals sent within the interval is marked as A2; calculate the frequency adjustment ratio; set the frequency adjustment ratio threshold. When the frequency adjustment ratio is greater than the frequency adjustment ratio threshold, a replacement adjustment signal is sent; when the frequency adjustment ratio is less than It is equal to the frequency adjustment proportion threshold and sends a normal operation signal.