CN114422043B - Reliability test device and method - Google Patents
Reliability test device and method Download PDFInfo
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- CN114422043B CN114422043B CN202210308528.XA CN202210308528A CN114422043B CN 114422043 B CN114422043 B CN 114422043B CN 202210308528 A CN202210308528 A CN 202210308528A CN 114422043 B CN114422043 B CN 114422043B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a reliability test device and a method, belonging to the technical field of radio frequency communication. The power detection circuit in the device can monitor the radio frequency output power of the test device in real time, and the monitoring result is displayed through the LED lamp. In the reliability test project needing to add radio frequency signals, a test platform built by the reliability test device is simple, a direct-current power supply is only needed to be provided, multiple paths of radio frequency signals can be output, and the working state of a test device can be detected, so that the reliability test device has the advantages of low test cost and high test efficiency.
Description
Technical Field
The invention belongs to the field of radio frequency communication, and particularly relates to a reliability test device and method.
Background
Reliability refers to the ability or possibility of a component, product, system to perform a function within a certain time and under certain conditions without failure. Reliability testing is the activity performed to ensure that the product maintains functional reliability over the specified life, in all circumstances of intended use, transport and storage. The product is exposed to natural or artificial environmental conditions to be subjected to the action of the product, so as to evaluate the performance of the product under the environmental conditions of actual use, transportation and storage, and analyze and research the influence degree of environmental factors and the action mechanism thereof.
The reliability test items mainly comprise: high temperature, low temperature, temperature shock, immersion, temperature cycling, low pressure, high low temperature, low pressure, constant humidity, heat, sand dust, salt spray corrosion, rain, solar radiation, photoaging, vibration, shock, drop, and the like. The main test items of reliability can be selected according to the specific working environments of components, products and systems.
If no special description exists, the reliability of the components is tested without adding radio frequency signals according to the military and civil universal reliability test standard. However, component and system level reliability tests typically require the addition of radio frequency signals. The failure rate of the reliability test with the input of the radio frequency signal is far higher than that of the reliability test without the radio frequency signal. When the component or the system fails in the reliability test, the device-level failure accounts for more obvious failure reasons, and a device manufacturer is required to perform fault analysis. The basis of fault analysis is fault recurrence, which is known to be a small probability event, so that a process of fault recurrence requires multiple devices to be tested together for reliability. In addition, in order to approach the reliability test of the components and the system level, the upper level manufacturers of the devices also propose a reliability test item for increasing the radio frequency input. Therefore, the situation that the radio frequency signal needs to be added in the reliability test of the component is common. The reliability test equipment of component manufacturers does not provide radio frequency input or large-batch radio frequency input conditions. When a radio frequency signal needs to be added in a reliability test, a conventional operation method is to provide the radio frequency signal in a signal source mode, the output power of the signal source is limited, the condition that a large signal needs to be added cannot be met, meanwhile, multiple signal sources are often required to be provided according to the condition of a batch reliability test, and the price of the signal sources is high, so that the test cost is huge, and common small-sized enterprises cannot bear the test cost.
Disclosure of Invention
Aiming at the defects in the prior art, the reliability test device and the reliability test method provided by the invention solve the problems that the existing reliability test for adding radio frequency signals has high requirement on test conditions and high cost, and the signal frequency and power can not be controlled easily.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: a reliability testing apparatus comprising:
phase-locked loop network: the power supply system is used for generating a radio frequency signal, changing the frequency of the radio frequency signal according to the control of the control and the control of the direct current power supply network, and sending the radio frequency signal to the power regulation network;
the power adjusting network: the power amplifier is used for amplifying or adjusting the power of the radio frequency signal generated by the phase-locked loop network and sending the radio frequency signal to the 1/N path power divider;
1/N way power divider: the gain compensation circuit is used for dividing an input radio frequency signal into N paths and outputting the N paths of the input radio frequency signal to the gain compensation circuit;
a gain compensation circuit: the gain compensation circuit is used for performing gain compensation on the input N paths of radio frequency signals to enable the power of the N paths of radio frequency signals to be consistent;
control and direct current supply network: the frequency converter is used for converting external input direct current voltage and controlling the frequency of a radio frequency signal generated in the phase-locked loop network;
the power detection network: the device comprises a power detection circuit, a power detection circuit and a power detection circuit, wherein the power detection circuit is used for detecting the input radio frequency signal power and comparing the detected radio frequency signal power with a calibrated normal power detection voltage to determine a reliability test result of a device to be tested;
wherein N is any positive integer.
The invention has the beneficial effects that:
(1) the frequency and the power of the radio frequency signal generated by the reliability test device provided by the invention are adjustable, N paths of radio frequency signals can be output simultaneously, the reliability test device has a radio frequency signal power detection function, and a detection result can be displayed through an LED indicator lamp;
(2) the reliability test device provided by the invention can output multi-channel radio frequency signals only by providing a direct current power supply, can meet the batch test requirements, and simultaneously, the frequency of the radio frequency signals and the power of the test device are adjustable, so that the use requirements of different devices are met, and the reliability test device has universality;
(3) compared with the conventional reliability test method for providing radio frequency signals through a signal source, the reliability test device provided by the invention does not need the signal source, greatly saves the test cost, can detect the working state of a test device in real time in the reliability test process, improves the reliability test efficiency, and has the advantages of low test cost and high test efficiency.
(4) The reliability test device provided by the invention is provided with a plurality of radio frequency signal output ports, and a phase-locked loop circuit, a variable gain amplifier, a power amplifier and a gain compensation circuit are integrated in the device, so that the signal consistency of each radio frequency output port is ensured while different requirements of different devices on frequency and power are met.
Furthermore, the input end of the control and direct current supply network is used as the direct current power supply input end of the reliability test device;
the first output end and the second output end of the control and direct-current power supply network are respectively connected with the first input end and the power supply end of the phase-locked loop network, the third output end of the control and direct-current power supply network is connected with the power supply end of the power adjusting network, the fourth output end of the control and direct-current power supply network is connected with the power supply end of the power detection network, and N input ends of the power detection network are used as N radio-frequency input ends of the reliability detection device;
the output end of the phase-locked loop network is connected with the first input end of the power adjusting network, the second input end of the power adjusting network is connected with a load, the output end of the power adjusting network is connected with the input end of the 1/N-path power divider, the N-path output end of the 1/N-path power divider is connected with the corresponding input end of the gain compensating circuit, and the N-path output end of the gain compensating circuit serves as the N-path radio frequency output end of the reliability testing device.
Further, the control and direct current power supply network comprises a single chip microcomputer control circuit and a DC-DC circuit;
a power supply terminal of the DC-DC circuit serves as an input terminal of the control and direct-current supply network, an output terminal of the one-chip microcomputer control circuit serves as a first output terminal of the control and direct-current supply network, an input terminal of the one-chip microcomputer control circuit is connected with a first output terminal of the DC-DC circuit, a second output terminal of the DC-DC circuit serves as a second output terminal of the control and direct-current supply network, a third output terminal of the DC-DC circuit serves as a third output terminal of the control and direct-current supply network, and a fourth output terminal of the DC-DC supply network serves as a fourth output terminal of the control and direct-current supply network.
The beneficial effects of the above further scheme are: only a single direct current power supply is needed to input, and direct current power supplies needed by a phase-locked loop circuit, a power adjusting circuit, a power detection circuit and a power detection circuit in the reliability test device can be output; and outputting a control signal capable of controlling the output frequency of the phase-locked loop circuit.
Further, the power detection network comprises N loads, N couplers, N power detection circuits, N comparators and N LED indicator lamps;
n input ends of N couplers are used as N input ends of the power detection network, N output ends of the N couplers are respectively connected with a load, N coupling signal output ends of the N couplers are respectively connected with a power detection circuit, N output ends of the N power detection circuits are respectively connected with a comparator, and N output ends of the N comparators are respectively connected with an LED indicator light;
and the power supply end of the power detection network is a power detection circuit, a comparator and each voltage input port of the LED indicator lamp.
The beneficial effects of the above further scheme are: the output signal state of the reliability test piece can be detected and monitored in real time, and when the output signal state of the test piece changes (fails), the output signal state can be displayed in real time through the LED lamp, so that the test efficiency can be improved.
Furthermore, the phase-locked loop network comprises a crystal oscillator, a phase discriminator, a loop filter, a voltage-controlled oscillator and an N-variable frequency divider;
the output end of the crystal oscillator is connected with the first input end of the phase discriminator, the output end of the phase discriminator is connected with the input end of the loop filter, the output end of the loop filter is connected with the input end of the voltage-controlled oscillator, the output end of the voltage-controlled oscillator serves as the output end of the phase-locked loop network and is connected with the first input end of the N variable frequency divider, the output end of the N variable frequency divider is connected with the second input end of the phase discriminator, and the second input end of the N variable frequency divider serves as the first input end of the phase-locked loop network;
and the power supply end of the phase-locked loop network is each voltage input port in the crystal oscillator, the phase discriminator, the loop filter, the voltage-controlled oscillator and the N-type variable frequency divider.
The beneficial effects of the above further scheme are: the radio frequency signal required by the test device can be output only by providing a direct current power supply, and the frequency of the radio frequency signal can be controlled by a single chip microcomputer and can replace a signal source.
Further, the power adjustment network comprises a variable gain amplifier, a power amplifier and a power detection circuit;
a first input end of the variable gain amplifier is used as a first input end of the power adjusting network, an output end of the variable gain amplifier is connected with an input end of the power amplifier, and an output end of the power amplifier is used as an output end of the power adjusting network;
the second input end of the variable gain amplifier is connected with the output end of the power detection circuit, and the input end of the power detection circuit is used as the second input end of the power regulation network;
and the power supply end of the power adjusting network is a voltage input port of each of the variable gain amplifier, the power amplifier and the power detection circuit.
The beneficial effects of the above further scheme are: amplifying and adjusting the power of the radio frequency signal output by the phase-locked loop circuit to enable the signal power of N paths of radio frequency output ends to meet the requirement of a reliability test; and the signal power of the N paths of radio frequency output ends is kept unchanged when the ambient temperature is changed. The realization principle is as follows: when the environmental temperature of the test device changes, the signal level of the output end of the gain compensation circuit changes, the power detection circuit converts the detected change signal into a voltage signal, and the voltage signal can adjust the gain of the variable gain amplifier, so that the aim of enabling the signal power of the N paths of radio frequency output ends to be consistent with that before the temperature changes is fulfilled.
Further, the method for the gain compensation circuit to realize gain compensation comprises the following steps: the gain of the variable gain amplifier is controlled by coupling the signal at the output terminal into the power detection circuit, and then converting the radio frequency signal into a voltage signal by the power detection circuit.
The beneficial effects of the above further scheme are: ensuring equal signal input to each experimental device and ensuring the consistency of experimental conditions of each experimental device
A reliability testing method comprising the steps of:
s1, determining parameters of a test device;
s2, calibrating the reliability testing device based on the testing device parameters;
s3, connecting a reliability test device and a test device, and performing a reliability test;
and S4, in the reliability test process, carrying out state monitoring, and realizing the reliability test according to the monitoring result.
Further, the parameters of the device under test in step S1 include the radio frequency signal operating frequency, the signal power, and the number of the device under test;
in step S2, the method for calibrating the reliability test apparatus specifically includes:
calibrating the detection voltage value of the coupling signal of the output power of the test device under the normal working state; meanwhile, the LED indicator light is ensured to be on when the test device is in a normal working state, and the LED indicator light is turned off after the working state is changed;
in step S3, connecting the reliability testing apparatus and the testing device includes connecting a dc power supply to the control and dc power supply network and the testing device in the reliability testing apparatus, connecting N rf outputs of the reliability testing apparatus and the rf input of the testing device, and connecting an rf output of the testing device and N rf inputs of the reliability testing apparatus;
in step S4, the state monitoring method specifically includes: and when the LED indicator lamp is on, the corresponding test device works normally, otherwise, the corresponding test device works abnormally, and the number and the test time of the test device corresponding to the extinguished LED indicator lamp are recorded.
The invention has the beneficial effects that: the platform is simple, only a single direct current power supply input is needed to be provided, and the reliability test platform can work; meanwhile, the working state of a test device can be detected, and the reliability test efficiency is improved.
Drawings
Fig. 1 is a structural diagram of a reliability testing apparatus according to an embodiment of the present invention.
Fig. 2 is a flowchart of a reliability testing method according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Example 1:
an embodiment of the present invention provides a reliability testing apparatus, as shown in fig. 1, including:
phase-locked loop network: the power supply system is used for generating a radio frequency signal, changing the frequency of the radio frequency signal according to the control of the control and the control of the direct current power supply network, and sending the radio frequency signal to the power regulation network;
a power regulation network: the power amplifier is used for amplifying or adjusting the power of the radio frequency signal generated by the phase-locked loop network and sending the radio frequency signal to the 1/N path power divider;
1/N way power divider: the gain compensation circuit is used for dividing an input radio frequency signal into N paths and outputting the N paths of the input radio frequency signal to the gain compensation circuit;
a gain compensation circuit: the gain compensation circuit is used for performing gain compensation on the input N paths of radio frequency signals to enable the power of the N paths of radio frequency signals to be consistent;
control and direct current supply network: the frequency converter is used for converting external input direct current voltage and controlling the frequency of a radio frequency signal generated in the phase-locked loop network;
the power detection network: the device comprises a power detection circuit, a power detection circuit and a power detection circuit, wherein the power detection circuit is used for detecting the input radio frequency signal power and comparing the detected radio frequency signal power with a calibrated normal power detection voltage to determine a reliability test result of a device to be tested;
wherein N is any positive integer.
In the embodiment of the invention, the power adjusting network performs power amplification or power adjustment on the radio-frequency signals to meet different requirements of different test devices on the signal power, and when N paths of radio-frequency signals at the output end fluctuate, the signal power at the output end is ensured to be a set value; the 1/N power divider divides the radio frequency signal into N paths for output, generally N is 48, the N can be adjusted according to the selected power divider, the flexibility is high, one path of radio frequency signal is divided into N paths for output, and the requirement of batch reliability test can be met.
As shown in fig. 1, the input terminal of the control and dc power supply network in this embodiment is used as the dc power supply input terminal of the reliability testing apparatus;
the first output end and the second output end of the control and direct-current power supply network are respectively connected with the first input end and the power supply end of the phase-locked loop network, the third output end of the control and direct-current power supply network is connected with the power supply end of the power adjusting network, the fourth output end of the control and direct-current power supply network is connected with the power supply end of the power detection network, and N input ends of the power detection network are used as N radio-frequency input ends of the reliability detection device;
the output end of the phase-locked loop network is connected with the first input end of the power adjusting network, the second input end of the power adjusting network is connected with the load, the output end of the power adjusting network is connected with the input end of the 1/N power divider, the N output ends of the 1/N power divider are connected with the corresponding input end of the gain compensating circuit, and the N output ends of the gain compensating circuit are used as the N radio frequency output ends of the reliability testing device.
As shown in fig. 1, the control and DC supply network in the embodiment of the present invention includes a single chip control circuit and a DC-DC circuit;
a power supply terminal of the DC-DC circuit serves as an input terminal of the control and direct-current supply network, an output terminal of the one-chip microcomputer control circuit serves as a first output terminal of the control and direct-current supply network, an input terminal of the one-chip microcomputer control circuit is connected with a first output terminal of the DC-DC circuit, a second output terminal of the DC-DC circuit serves as a second output terminal of the control and direct-current supply network, a third output terminal of the DC-DC circuit serves as a third output terminal of the control and direct-current supply network, and a fourth output terminal of the DC-DC supply network serves as a fourth output terminal of the control and direct-current supply network.
In the embodiment of the invention, the single direct-current voltage input from the outside is converted into the voltage required by other circuits in the device through the DC-DC circuit, and the singlechip control circuit is used for controlling the N variable frequency divider in the phase-locked loop network so as to achieve the purpose of controlling the frequency of the output signal.
As shown in fig. 1, in the embodiment of the present invention, the power detection network includes N loads, N couplers, N power detection circuits, N comparators, and N LED indicators;
n input ends of N couplers are used as N input ends of the power detection network, N output ends of the N couplers are respectively connected with a load, N coupling signal output ends of the N couplers are respectively connected with a power detection circuit, N output ends of the N power detection circuits are respectively connected with a comparator, and N output ends of the N comparators are respectively connected with an LED indicator light; and the power supply end of the power detection network is the voltage input ports of the power detection circuit, the comparator and the LED indicator lamp.
As shown in fig. 1, in an embodiment of the present invention, a phase-locked loop network includes a crystal oscillator, a phase detector, a loop filter, a voltage-controlled oscillator, and an N-variable frequency divider;
the output end of the crystal oscillator is connected with the first input end of the phase discriminator, the output end of the phase discriminator is connected with the input end of the loop filter, the output end of the loop filter is connected with the input end of the voltage-controlled oscillator, the output end of the voltage-controlled oscillator is used as the output end of the phase-locked loop network and is connected with the first input end of the N variable frequency divider, the output end of the N variable frequency divider is connected with the second input end of the phase discriminator, and the second input end of the N variable frequency divider is used as the first input end of the phase-locked loop network; and the power supply end of the phase-locked loop network is each voltage input port in the crystal oscillator, the phase discriminator, the loop filter, the voltage-controlled oscillator and the N-type variable frequency divider.
As shown in fig. 1, in the embodiment of the present invention, the power adjusting network includes a variable gain amplifier, a power amplifier and a power detecting circuit;
a first input end of the variable gain amplifier is used as a first input end of the power adjusting network, an output end of the variable gain amplifier is connected with an input end of the power amplifier, and an output end of the power amplifier is used as an output end of the power adjusting network; the second input end of the variable gain amplifier is connected with the output end of the power detection circuit, and the input end of the power detection circuit is used as the second input end of the power regulation network; and the power supply end of the power adjusting network is a voltage input port of each of the variable gain amplifier, the power amplifier and the power detection circuit.
The method for realizing gain compensation by the gain compensation circuit in the embodiment of the invention comprises the following steps: the gain of the variable gain amplifier is controlled by coupling the signal at the output of the gain compensation circuit into the power detection circuit, which converts the radio frequency signal into a voltage signal. For example, when the output power changes due to the change of the environmental temperature, the voltage output by the power detection circuit will also change, so that the gain of the variable gain amplifier will also change, and the change exactly compensates the output power change caused by the environmental temperature, so that the power of the output end is kept at the set value.
In the embodiment of the present invention, the working principle and the working process of the reliability testing apparatus are explained as follows: after the direct current power supply is loaded to the control and direct current power supply circuit, the control and direct current power supply circuit outputs voltages required by various departments of the reliability test device and control signals for controlling the output frequency of the phase loop circuit. The phase-locked loop circuit generates a radio-frequency signal required by a test, the radio-frequency signal is input to a variable gain amplifier and a power amplifier in the power adjusting circuit, and the power of the output radio-frequency signal meets the test requirement. The radio frequency signal output by the power amplifier is averagely divided into N paths of radio frequency output by 1/N paths of power, and the power of the N paths of radio frequency output signals is consistent through the gain compensation circuit. The coupling signal at the output end of the gain compensation circuit is detected by the power detection circuit, so that the signal size of the N radio frequency output ends can be adjusted in real time. And the signal power of the N paths of radio frequency output ends is kept unchanged when the environmental temperature is changed.
Example 2:
the embodiment of the invention provides a reliability test method based on the reliability test device in the embodiment 1, as shown in fig. 2, the method comprises the following steps:
s1, determining parameters of a test device;
s2, calibrating the reliability testing device based on the testing device parameters;
s3, connecting a reliability test device and a test device, and performing a reliability test;
and S4, in the reliability test process, carrying out state monitoring, and realizing the reliability test according to the monitoring result.
The parameters of the device under test in step S1 of the embodiment of the present invention include the operating frequency of the rf signal of the device under test, the signal power, and the number of the devices under test.
In step S2 of the embodiment of the present invention, the method for calibrating the reliability test apparatus specifically includes:
calibrating the detection voltage value of the coupling signal of the output power of the test device under the normal working state; meanwhile, the LED indicating lamp is ensured to be on when the test device is in a normal working state, and the LED indicating lamp is turned off after the working state is changed, so that the output frequency and power of the device meet the requirements.
In step S3 of the embodiment of the present invention, connecting the reliability testing apparatus and the testing device includes connecting a dc power supply to the control and dc power supply network and the testing device in the reliability testing apparatus, connecting N rf outputs of the reliability testing apparatus and the rf input of the testing device, and connecting an rf output of the testing device and N rf inputs of the reliability testing apparatus; after the connection is completed, the reliability testing device is placed in a reliability testing project environment, and a direct current power supply is turned on to start a reliability test.
In step S4 of the embodiment of the present invention, the state monitoring method specifically includes: when the LED indicator light is on, the corresponding test device works normally, otherwise, the corresponding test device works abnormally, the number of the test device corresponding to the extinguished LED indicator light and the test time are recorded, and after the time is over, the reason of the abnormal work is analyzed, and whether the device is out of work or not is judged. Specifically, a radio frequency output signal of the test piece is connected to an input end of the coupler, the coupled radio frequency signal passes through the power detection circuit and then outputs a voltage value, and the voltage value is compared with a preset voltage value detected by normal output power through the comparator. When the voltage value is consistent with the calibrated voltage value, the comparator outputs a high level, and when the voltage value is inconsistent with the calibrated voltage value, the comparator outputs a low level. The LED indicator reacts to the high and low levels input by the comparator: the high level represents normal, and the LED indicator light is on; a low level represents a fault and the LED indicator lights go off.
Claims (7)
1. A reliability testing device, comprising:
phase-locked loop network: the power supply system is used for generating a radio frequency signal, changing the frequency of the radio frequency signal according to the control of the control and the control of the direct current power supply network, and sending the radio frequency signal to the power regulation network;
the power adjusting network: the power amplifier is used for amplifying or adjusting the power of the radio frequency signal generated by the phase-locked loop network and sending the radio frequency signal to the 1/N path power divider;
1/N way power divider: the gain compensation circuit is used for dividing an input radio frequency signal into N paths and outputting the N paths of the input radio frequency signal to the gain compensation circuit;
a gain compensation circuit: the gain compensation circuit is used for performing gain compensation on the input N paths of radio frequency signals to make the power of the N paths of radio frequency signals consistent;
control and direct current supply network: the frequency converter is used for converting external input direct current voltage and controlling the frequency of a radio frequency signal generated in the phase-locked loop network;
the power detection network: the device comprises a power detection circuit, a power detection circuit and a power detection circuit, wherein the power detection circuit is used for detecting the input radio frequency signal power and comparing the detected radio frequency signal power with a calibrated normal power detection voltage to determine a reliability test result of a device to be tested;
wherein N is any positive integer;
the input end of the control and direct current power supply network is used as the direct current power supply input end of the reliability test device;
the first output end and the second output end of the control and direct-current power supply network are respectively connected with the first input end and the power supply end of the phase-locked loop network, the third output end of the control and direct-current power supply network is connected with the power supply end of the power adjusting network, the fourth output end of the control and direct-current power supply network is connected with the power supply end of the power detection network, and N input ends of the power detection network are used as N radio-frequency input ends of the reliability test device; the output end of the phase-locked loop network is connected with the first input end of the power adjusting network, the second input end of the power adjusting network is connected with a load, the output end of the power adjusting network is connected with the input end of the 1/N power divider, the N output ends of the 1/N power divider are connected with the corresponding input end of the gain compensating circuit, and the N output ends of the gain compensating circuit are used as the N radio frequency output ends of the reliability testing device;
the power detection network comprises N loads, N couplers, N power detection circuits, N comparators and N LED indicator lamps;
n input ends of N couplers are used as N input ends of the power detection network, N output ends of the N couplers are respectively connected with a load, N coupling signal output ends of the N couplers are respectively connected with a power detection circuit, N output ends of the N power detection circuits are respectively connected with a comparator, and N output ends of the N comparators are respectively connected with an LED indicator light;
and the power supply end of the power detection network is the voltage input ports of the power detection circuit, the comparator and the LED indicator lamp.
2. The reliability testing apparatus of claim 1, wherein the control and DC supply network comprises a single chip control circuit and a DC-DC circuit;
a power supply terminal of the DC-DC circuit serves as an input terminal of the control and direct-current supply network, an output terminal of the monolithic control circuit serves as a first output terminal of the control and direct-current supply network, an input terminal of the monolithic control circuit is connected with a first output terminal of the DC-DC circuit, a second output terminal of the DC-DC circuit serves as a second output terminal of the control and direct-current supply network, a third output terminal of the DC-DC circuit serves as a third output terminal of the control and direct-current supply network, and a fourth output terminal of the DC-DC circuit serves as a fourth output terminal of the control and direct-current supply network.
3. The reliability testing apparatus of claim 1, wherein the phase-locked loop network comprises a crystal oscillator, a phase detector, a loop filter, a voltage-controlled oscillator, and an N-variable frequency divider;
the output end of the crystal oscillator is connected with the first input end of the phase discriminator, the output end of the phase discriminator is connected with the input end of the loop filter, the output end of the loop filter is connected with the input end of the voltage-controlled oscillator, the output end of the voltage-controlled oscillator serves as the output end of the phase-locked loop network and is connected with the first input end of the N variable frequency divider, the output end of the N variable frequency divider is connected with the second input end of the phase discriminator, and the second input end of the N variable frequency divider serves as the first input end of the phase-locked loop network;
and the power supply end of the phase-locked loop network is each voltage input port in the crystal oscillator, the phase discriminator, the loop filter, the voltage-controlled oscillator and the N-type variable frequency divider.
4. The reliability testing apparatus of claim 1, wherein the power conditioning network comprises a variable gain amplifier, a power amplifier, and a power detection circuit;
a first input end of the variable gain amplifier is used as a first input end of the power adjusting network, an output end of the variable gain amplifier is connected with an input end of the power amplifier, and an output end of the power amplifier is used as an output end of the power adjusting network;
the second input end of the variable gain amplifier is connected with the output end of the power detection circuit, and the input end of the power detection circuit is used as the second input end of the power regulation network; and the power supply end of the power adjusting network is a voltage input port of each of the variable gain amplifier, the power amplifier and the power detection circuit.
5. The reliability test device of claim 4, wherein the gain compensation circuit is configured to perform gain compensation by: the signal at the output end of the gain compensation circuit is coupled into the power detection circuit, and the power detection circuit converts the radio-frequency signal into a voltage signal to control the gain of the variable gain amplifier.
6. A reliability testing method based on the reliability testing device according to any one of claims 1 to 5, comprising the steps of:
s1, determining parameters of a test device;
s2, calibrating the reliability testing device based on the testing device parameters;
s3, connecting a reliability test device and a test device, and performing a reliability test;
and S4, in the reliability test process, carrying out state monitoring, and realizing the reliability test according to the monitoring result.
7. The reliability test method according to claim 6, wherein the parameters of the device under test in step S1 include the operating frequency of the rf signal of the device under test, the signal power, and the number of the device under test;
in step S2, the method for calibrating the reliability test apparatus specifically includes:
calibrating the detection voltage value of the coupling signal of the output power of the test device under the normal working state; meanwhile, the LED indicator light is ensured to be on when the test device is in a normal working state, and the LED indicator light is turned off after the working state is changed;
in step S3, connecting the reliability testing apparatus and the testing device includes connecting a dc power supply to the control and dc power supply network and the testing device in the reliability testing apparatus, connecting N rf outputs of the reliability testing apparatus and the rf input of the testing device, and connecting an rf output of the testing device and N rf inputs of the reliability testing apparatus;
in step S4, the state monitoring method specifically includes: and when the LED indicator lamp is on, the corresponding test device works normally, otherwise, the corresponding test device works abnormally, and the number and the test time of the test device corresponding to the extinguished LED indicator lamp are recorded.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082643A (en) * | 2007-07-09 | 2007-12-05 | 南京广顺网络通信设备有限公司 | stationary wave power monitoring instrument and working method thereof |
| CN103744010A (en) * | 2013-12-26 | 2014-04-23 | 中国电子科技集团公司第三十六研究所 | An automatic testing system and an automatic testing method of a continuous wave radio frequency power amplifier |
| CN105897257A (en) * | 2016-05-13 | 2016-08-24 | 天津光电通信技术有限公司 | Frequency-extendable signal generation device and implementation method |
| CN113242079A (en) * | 2021-04-20 | 2021-08-10 | 中国电子科技集团公司第五十四研究所 | Terminal based on satellite broadband data communication |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3313998B2 (en) * | 1997-03-17 | 2002-08-12 | 日本プレシジョン・サーキッツ株式会社 | Phase locked loop |
| US8995502B1 (en) * | 2006-04-04 | 2015-03-31 | Apple Inc. | Transceiver with spectral analysis |
| CN101299644B (en) * | 2008-06-13 | 2011-12-21 | 深圳市远望谷信息技术股份有限公司 | Antenna channel detection method based on six-port circuit |
| US20160087687A1 (en) * | 2008-09-27 | 2016-03-24 | Witricity Corporation | Communication in a wireless power transmission system |
| US9214726B2 (en) * | 2013-01-21 | 2015-12-15 | International Business Machines Corporation | High frequency phase shifter array testing |
| CN105261265B (en) * | 2015-07-20 | 2017-10-10 | 沈阳理工大学 | A kind of ECM experiment teaching system |
| CN106533589A (en) * | 2016-11-21 | 2017-03-22 | 上海卫星工程研究所 | Universal satellite data transmission testing system and method |
| CN207396635U (en) * | 2017-11-04 | 2018-05-22 | 天津市中力神盾电子科技有限公司 | Reliability testing equipment for power distribution terminal |
| CN110165922A (en) * | 2019-06-11 | 2019-08-23 | 西安科技大学 | Multiple-channel output random waveform power signal source |
| CN111064480B (en) * | 2019-12-20 | 2021-08-27 | 晋能控股煤业集团有限公司 | Broadband signal generating device |
| CN211656163U (en) * | 2020-05-10 | 2020-10-09 | 南京华络通信技术有限公司 | 32 port power tolerance test system |
| US20210399700A1 (en) * | 2020-06-22 | 2021-12-23 | Epirus, Inc. | Systems and methods for modular power amplifiers |
| CN113225032A (en) * | 2021-04-30 | 2021-08-06 | 上海市医疗器械检验研究院 | System and method for testing reliability of gradient power amplifier |
| CN113259021B (en) * | 2021-04-30 | 2023-06-02 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Portable automatic receiving and transmitting testing device for aviation radio station |
| CN113391273A (en) * | 2021-06-11 | 2021-09-14 | 广州极飞科技股份有限公司 | Signal generation method and device, signal transmitting equipment and readable storage medium |
| CN114028723A (en) * | 2021-12-08 | 2022-02-11 | 南京从景生物技术有限公司 | RF hip protection stool with adjustable frequency range generated by DDS or phase-locked loop technology and assembling method |
-
2022
- 2022-03-28 CN CN202210308528.XA patent/CN114422043B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082643A (en) * | 2007-07-09 | 2007-12-05 | 南京广顺网络通信设备有限公司 | stationary wave power monitoring instrument and working method thereof |
| CN103744010A (en) * | 2013-12-26 | 2014-04-23 | 中国电子科技集团公司第三十六研究所 | An automatic testing system and an automatic testing method of a continuous wave radio frequency power amplifier |
| CN105897257A (en) * | 2016-05-13 | 2016-08-24 | 天津光电通信技术有限公司 | Frequency-extendable signal generation device and implementation method |
| CN113242079A (en) * | 2021-04-20 | 2021-08-10 | 中国电子科技集团公司第五十四研究所 | Terminal based on satellite broadband data communication |
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|---|---|
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