Servo radar transceiver protection device

Abstract

The utility model belongs to the technical field of radars, and provides a servo radar transceiver protection device, which comprises a receiver protection module and a transmitter protection module, and is characterized in that the receiver protection module is arranged at the front end of a receiver; the receiver protection module is used for collecting a received signal, sending the received signal to a receiver when the received signal accords with a first preset threshold value, and otherwise, filtering the received signal; the transmitter protection module is arranged at the front end of the transmitter; and the transmitter protection module is used for collecting an output signal of the transmitter, performing detection to generate a detection value, and transmitting the output signal when the detection value accords with a second preset threshold value. The front ends of the transmitter and the receiver are respectively and additionally provided with a protection module, when a strong echo signal is encountered, the strong echo signal can be timely identified, the signal is automatically discarded, the signal is prevented from entering a transceiver system, the transmitter and the receiver are forcibly closed when necessary, the transceiver is prevented from being burnt down, the protection effect on equipment is achieved, and the loss is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar technical field, concretely relates to a kind of servo radar transceiver protection device. BACKGROUND

[0002] Doppler radar hardware function is using Ka wave band full solid state system, through double polarization mode, with fixed point observation and volume scanning function, can be used for the detection of cloud distribution, cloud height and radial velocity, in order to improve observation ability, generally using high-power transmitter, but in the use process, if there are high-rise buildings or shelter around, or strong ground clutter or interference, these large signals are received, it is easy to cause transmitter power amplifier burnout or receiver low-noise amplifier module burnout, cause great loss, cause the experience of equipment use to reduce.

[0003] Traditional Doppler radar, when using high-power transmitter and receiver, do not pay attention to the occurrence of occasional situation, do not do enough protection, often encounter transmitter and receiver burnout situation, cause huge loss, greatly reduce user experience. UTILITARY MODEL CONTENT

[0004] In view of the defects in the prior art, the utility model provides a kind of servo radar transceiver protection device, to

[0005] The utility model provides a kind of servo radar transceiver protection device, comprising:

[0006] Receiver protection module is set to the front end of receiver;The receiver protection module is used to collect receiving signal, when receiving signal meets first preset threshold, receiving signal is sent to receiver, otherwise receiving signal is filtered out;

[0007] Transmitter protection module is set to the front end of transmitter;The transmitter protection module is used to collect the output signal of transmitter and carries out detection to generate detection value, when detection value meets second preset threshold, transmission output signal.

[0008] From the above technical solution, the utility model provides a kind of servo radar transceiver protection device, for the phenomenon that transmitter and receiver are easy to burn, respectively increase protection module in the front end of transmitter and receiver, when encountering strong echo signal, strong echo signal can be identified in time, the signal is discarded automatically, prevent signal from entering transceiving system, when necessary, forcibly close transmitter and receiver, prevent transceiver from being burned, play the protection effect to equipment, reduce loss.

[0009] Optionally, the receiver protection module includes:

[0010] An ADC acquisition chip is configured to acquire a received signal and convert the received signal into a digital signal; the ADC acquisition chip is further connected to the receiver, and when the received signal meets a first preset threshold, the digital signal is sent to the receiver;

[0011] A data selector is connected to the ADC acquisition chip and configured to filter out the digital signal that does not meet the first preset threshold;

[0012] A low-pass filter is connected to the data selector and configured to perform low-pass filtering;

[0013] A level switch is connected to the low-pass filter and configured to send a determination signal to the ADC acquisition chip and control a receiver switch to be turned off.

[0014] Optionally, the data selector is of a model of MC14512BDR2G.

[0015] Optionally, the transmitter protection module comprises:

[0016] A power divider is configured to divide a transmitter signal into two signals;

[0017] A detector is configured to obtain one of the two signals output by the power divider and output a detection value;

[0018] A numerical comparator is configured to input the detection value and output the other signal output by the power divider when the detection value meets a second preset threshold;

[0019] A level conversion switch is connected to the output of the numerical comparator and configured to generate a low level / high level signal according to the output of the numerical comparator; and when the output is a high level signal, the transmitter is turned off.

[0020] A DAC chip is connected to the output of the numerical comparator and configured to convert the other signal output by the power divider into an analog signal.

[0021] Optionally, the numerical comparator is of a model of SN74LS85N.

[0022] Optionally, the detector is of a model of AD8302ARUZ-RL7.

[0023] Optionally, a power supply module is further included, and the power supply module is configured to supply power to the receiver protection module and the transmitter protection module.

[0024] By using the above technical solution, the application has the following technical effects:

[0025] The utility model discloses can effectively to the strong echo signal of occasional, such as high building, shielding, strong ground clutter and so on carry out filtering and monitoring, real -time protection receiver link, when meeting strong echo signal, can identify strong echo signal in time, automatically discard the signal, prevent signal from entering the transceiver system, can monitor transmitter simultaneously, if meeting transmitter exception, then carry out disconnect protection, the servo radar transceiver protection device based on the utility model can greatly reduce the damage probability of transmitter and receiver, improve the service life of equipment, save the loss caused by maintenance, save the cost, improve economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawing needed to be used in the specific embodiment or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0027] Figure 1 A servo radar transceiver protection device provided by the utility model embodiment is shown in the figure.

[0028] Reference signs:

[0029] 11-ADC acquisition chip;12-data selector;13-low pass filter;14-level switch;21-power divider;22-detector;23-value comparator;24-level conversion switch;25-DAC chip;3-power supply module. DETAILED DESCRIPTION

[0030] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, therefore only as an example, and cannot limit the protection scope of the utility model.

[0031] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the technical personnel in the field of the utility model.

[0032] In the present application, unless otherwise specified and limited, the terms "connected", "connected" and other terms should be understood in a broad sense, which can be directly connected, or indirectly connected through an intermediate medium, which can be the internal connection of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] In one embodiment, as Figure 1As shown, a servo radar transceiver protection device is provided, comprising a receiver protection module and a transmitter protection module, the receiver protection module is arranged at the front end of the receiver; the receiver protection module is used for collecting the received signal, when the received signal meets the first preset threshold, the received signal is sent to the receiver, otherwise the received signal is filtered out; the transmitter protection module is arranged at the front end of the transmitter; the transmitter protection module is used for collecting the output signal of the transmitter and generating a detection value by detection, when the detection value meets the second preset threshold, the output signal is transmitted.

[0034] Therefore, in view of the phenomenon that the transmitter and the receiver are easily burned out, the protection modules are respectively arranged at the front ends of the transmitter and the receiver, when the strong echo signal is encountered, the strong echo signal can be identified in time, the signal is automatically discarded, and the signal is prevented from entering the transceiver system; meanwhile, the transmission signal of the transmitter can be monitored, if the transmitter is abnormal, the protection is disconnected, and if necessary, the transmitter and the receiver are forced to be closed, so that the transceiver is prevented from being burned out, the protection of the equipment is realized, and the loss is reduced.

[0035] Optionally, the receiver protection module comprises:

[0036] The ADC acquisition chip 11 is used for collecting the received signal and converting it into a digital signal; the ADC acquisition chip 11 is also connected with the receiver, and when the received signal meets the first preset threshold, the digital signal is sent to the receiver;

[0037] The data selector 12 is connected with the ADC acquisition chip; and is used for filtering out the digital signal which does not meet the first preset threshold;

[0038] The low-pass filter 13 is connected with the data selector 12, and is used for low-pass filtering;

[0039] The level switch 14 is connected with the low-pass filter 13, and sends a judgment signal to the ADC acquisition chip 11 and controls the receiver switch to be turned off.

[0040] Before the received signal enters the receiver, the received signal is detected by the receiver protection module, and before this, the data selector 12 presets the first preset threshold; when the digital signal converted by the ADC acquisition chip 11 is within the preset threshold, the signal is sent to the receiver, otherwise the signal is filtered out. If the signal cannot be filtered out, the receiver switch is turned off until the signal meeting the first preset threshold requirement is received, and the transmitter and the receiver are turned on.

[0041] Optionally, the model of the ADC chip is AD9645, the model of the data selector 12 is MC14512BDR2G, and the model of the low-pass filter 13 is MAX280CPA.

[0042] Optionally, the transmitter protection module comprises:

[0043] a power divider 21 for dividing the transmitter signal into two signals;

[0044] a detector 22 for obtaining one of the two signals output by the power divider 21 and outputting a detection value;

[0045] a numerical comparator 23 for inputting the detection value and outputting the other signal output by the power divider 21 when the detection value meets a second preset threshold value;

[0046] a level conversion switch 24 connected to the output of the numerical comparator 23 and used for generating a low / high level signal according to the output of the numerical comparator 23; when the output is a high level signal, the transmitter is turned off;

[0047] a DAC chip 25 connected to the output of the numerical comparator 23 and used for converting the other signal output by the power divider 21 into an analog signal.

[0048] The level conversion switch 24 is in a normal open state of 0V, and when the detection value is within the range of the second preset threshold value, the other signal output by the power divider 21 is converted into an analog signal by the DAC chip 25 for input.

[0049] The level conversion switch 24 is in a normal open state, and outputs a 0V low level signal, and when the detector 22 is out of the range of the second preset threshold value, the level conversion switch 24 outputs a high level signal, which is used as an enable signal of the transmitter switch to control the transmitter switch to turn off the transmitter.

[0050] In the embodiment, the high level signal of the level conversion switch 24 is 5V, and the high level signal can also be 3.3V when the type is selected, which does not affect the specific implementation of the embodiment.

[0051] Optionally, the type of the numerical comparator 23 is SN74LS85N, the type of the detector 22 is AD8302ARUZ-RL7, and the type of the DAC chip 25 is AD9739.

[0052] It should be noted that the first preset threshold value and the second preset threshold value can be set by those skilled in the art according to the prior art, and thus will not be described here.

[0053] Optionally, the power supply module 3 is further included, and the power supply module 3 is used for supplying power to the receiver protection module and the transmitter protection module.

[0054] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail, so as not to obscure the understanding of the specification.

[0055] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A servo radar transceiver protection device, characterized in that, include: The receiver protection module is located at the front end of the receiver; The receiver protection module is used to collect the received signal. When the received signal is within the first preset threshold, the received signal is sent to the receiver; otherwise, the received signal is filtered out. The receiver protection module includes: An ADC acquisition chip is used to acquire received signals and convert them into digital signals; the ADC acquisition chip is also connected to a receiver, and when the received signal meets a first preset threshold, it sends the digital signal to the receiver. A data selector, connected to the ADC acquisition chip, is used to filter out digital signals that do not meet a first preset threshold. A low-pass filter, connected to the data selector, is used for low-pass filtering; A level switch is connected to the low-pass filter and sends a judgment signal to the ADC acquisition chip, and controls the receiver switch to turn off. A transmitter protection module is installed at the front end of the transmitter; the transmitter protection module is used to acquire the transmitter's output signal and perform detection to generate a detected value; when the detected value is within a second preset threshold, the output signal is transmitted; the transmitter protection module includes: A power divider is used to split a transmitter signal into two signals. The detector acquires one of the signals output by the power divider and outputs the detected value. A numerical comparator, which takes the detected value as input, is used to output another signal from the power divider when the detected value meets a second preset threshold. A level shifting switch, connected to the output of the numerical comparator, is used to generate a low-level / high-level signal based on the output of the numerical comparator; when a high-level signal is output, the transmitter is turned off. The DAC chip, connected to the output of the numerical comparator, is used to convert another signal output by the power divider into an analog signal output.

2. The servo radar transceiver protection device according to claim 1, characterized in that, The data selector is model MC14512BDR2G.

3. The servo radar transceiver protection device according to claim 1, characterized in that, The numerical comparator is model SN74LS85N.

4. The servo radar transceiver protection device according to claim 3, characterized in that, The detector is model AD8302ARUZ-RL7.

5. The servo radar transceiver protection device according to claim 1, characterized in that, It also includes a power supply module, which is used to supply power to the receiver protection module and the transmitter protection module.

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