CN108234041B - Receiver channel working state detection method and device - Google Patents
Receiver channel working state detection method and device Download PDFInfo
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- CN108234041B CN108234041B CN201810044935.8A CN201810044935A CN108234041B CN 108234041 B CN108234041 B CN 108234041B CN 201810044935 A CN201810044935 A CN 201810044935A CN 108234041 B CN108234041 B CN 108234041B
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- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
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Abstract
The invention discloses a method and a device for detecting the working state of a receiver channel, wherein the related device comprises the following steps: the analog voltage acquisition unit is used for determining the analog voltage of each channel of the receiver; the comparison unit is used for comparing the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage to determine the working state of each channel of the receiver; and the voltage stabilizing unit is used for providing stable voltage for the analog voltage acquisition unit and the comparison unit and realizing the isolation of an external circuit. The device has a simple integral structure, the voltage stabilizing unit can stabilize the input voltage and also can play a role in isolation, the anti-interference capability of the circuit is improved, and the stability of the circuit is improved; the operability of the circuit is greatly improved through the application of the single chip microcomputer, the reference voltage can be more flexibly set through the single chip microcomputer, and the reference can be changed under different temperature states; in addition, peripheral circuits of the single chip microcomputer are few, and productivity and operability are greatly improved.
Description
Technical Field
The invention relates to the field of microwave radio frequency, in particular to a method and a device for detecting the working state of a receiver channel.
Background
With the development of radio frequency technology, the receiving and transmitting channels of some common communication equipment need to carry out self-checking on the working state, and report the working state, so that the working personnel can know the running state of the equipment in detail, and the equipment can be overhauled in time when reporting faults. Meanwhile, the requirement on the volume is miniaturized, and the requirement on the working stability is higher and higher. Therefore, a detection module with small volume, high stability and accurate judgment is urgently needed.
At present, the circuit composition of a detection module is complex, the reference voltage adjustment is complex, and the detection module can not be changed according to different temperatures. Too many devices lead to the increase of module volume, complex production process and complicated debugging process. In addition, the box cover needs to be detached during debugging, and the voltage dividing resistor needs to be welded.
As is well known, since the output amplitudes of the respective channels of the receiver are not uniform and the detection voltages are not uniform, and the detection circuit needs to be finely adjusted according to the different detection voltages, the convenience of debugging and the mass producibility are particularly important.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the working state of a receiver channel, which have simple structure and are easy to produce and debug.
The purpose of the invention is realized by the following technical scheme:
a receiver channel operating state detection apparatus, comprising:
the analog voltage acquisition unit is used for determining the analog voltage of each channel of the receiver;
the comparison unit is used for comparing the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage to determine the working state of each channel of the receiver;
and the voltage stabilizing unit is used for providing stable voltage for the analog voltage acquisition unit and the comparison unit and realizing the isolation of an external circuit.
A receiver channel working state detection method comprises the following steps:
determining the analog voltage of each channel of the receiver by using an analog voltage acquisition unit;
comparing the magnitude relation between the analog voltage and the reference voltage of each channel of the receiver by using a comparison unit to determine the working state of each channel of the receiver;
and the voltage stabilizing unit is used for providing stable voltage for the analog voltage acquisition unit and the comparison unit and realizing the isolation of an external circuit.
According to the technical scheme provided by the invention, the working state of the channel is detected by detecting the background noise of the channel, so that the operability and maintainability of the equipment are effectively improved; moreover, the device has a simple integral structure, and the LDO (voltage regulator unit) can stabilize the input voltage and also can play a role in isolation, thereby improving the anti-interference capability and the stability of the circuit; the operability of the circuit is greatly improved through the application of the single chip microcomputer, the reference voltage can be more flexibly set through the single chip microcomputer, and the reference can be changed under different temperature states; in addition, peripheral circuits of the single chip microcomputer are few, and productivity and operability are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of a receiver channel operation state detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a receiver channel operation state detection apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Example one
An embodiment of the present invention provides a receiver channel operating state detection apparatus, as shown in fig. 1, which mainly includes:
the analog voltage acquisition unit is used for determining the analog voltage of each channel of the receiver;
the comparison unit is used for comparing the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage to determine the working state of each channel of the receiver;
and the voltage stabilizing unit is used for providing stable voltage for the analog voltage acquisition unit and the comparison unit and realizing the isolation of an external circuit.
In the embodiment of the invention, the analog voltage acquisition unit acquires the intermediate frequency noise amplitude of each channel of the receiver, so as to determine the corresponding analog voltage; the intermediate frequency noise amplitude is obtained by amplifying the substrate noise by the channel gain of the receiver.
In the embodiment of the invention, the comparison unit is preset with reference voltage as a judgment basis and compares the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage; if the analog voltage is greater than the reference voltage, outputting a high level to indicate that the corresponding channel of the receiver works normally; if the analog voltage is less than the reference voltage, a low level is output, which indicates that the corresponding channel of the receiver is not working normally.
In the embodiment of the present invention, the analog voltage obtaining unit may be a detector (AD8361) and a peripheral circuit thereof; the comparison unit is a single chip microcomputer; fig. 2 is a schematic diagram of a receiver channel operation state detection apparatus; wherein: 1-analog voltage acquisition unit, 2-voltage stabilization unit and 3-comparison unit.
In actual work, the detection device can be connected to a receiver channel through a power divider and an attenuator, power at the tail end of the receiver channel is transmitted to the detection device, firstly, the power at the tail end of the channel is converted into analog voltage through an analog voltage acquisition unit, and the difference between the normal work of the channel and the analog voltage when the channel fails is large. Programming a program of the single chip microcomputer to enable the single chip microcomputer to generate a reference voltage, transmitting the detected analog voltage into an I \ O port of the single chip microcomputer, and outputting a high level by a detection device when the analog voltage detected by a channel during normal work is greater than the reference voltage; when the channel is in fault, the detected analog voltage is less than the reference voltage, and the detection module outputs a low level; thus, the working state of the receiver channel is reported.
The following are exemplary:
the package of the LDO is SOT23-5, and the height of the LDO is 0.8 mm.
The package of the analog voltage acquisition unit is RM-8, and the height of the analog voltage acquisition unit is 1.1 mm.
The package of the single chip microcomputer is MLP-20, and the height of the single chip microcomputer is 1.1 mm.
The resistive-capacitive package involved in the device is 0402.
The devices are arranged in the PCB, and the whole grounding area of the bottom layer of the PCB base is paved with copper without paving solder resist, so that good contact with the ground is caused.
The detection device is provided with 6 bonding pads, wherein 1 bonding pad is a radio frequency input, 1 state output, 1 voltage input and 3 grounding.
The scheme provided by the embodiment of the invention can realize the detection of the working state of the channel. Firstly, a high-precision detector is adopted, so that the detection resolution of the invention is greatly improved, and the working states of modules in different environments are better distinguished; the LDO can stabilize the input voltage and also can play a role in isolation, so that the anti-interference capability of the circuit is improved, and the stability of the circuit is improved; the application of the single chip microcomputer greatly improves the operability of the circuit, and the single chip microcomputer is more flexible in setting the reference voltage and can change the reference voltage under different temperature states; in addition, peripheral circuits of the single chip microcomputer are few, and productivity and operability are greatly improved.
Example two
The embodiment of the invention provides a method for detecting the working state of a receiver channel, which is realized based on the device provided by the embodiment, and mainly comprises the following steps:
determining the analog voltage of each channel of the receiver by using an analog voltage acquisition unit;
comparing the magnitude relation between the analog voltage and the reference voltage of each channel of the receiver by using a comparison unit to determine the working state of each channel of the receiver;
and the voltage stabilizing unit is used for providing stable voltage for the analog voltage acquisition unit and the comparison unit and realizing the isolation of an external circuit.
In the embodiment of the invention, the analog voltage acquisition unit acquires the intermediate frequency noise amplitude of each channel of the receiver, so as to determine the corresponding analog voltage;
the intermediate frequency noise amplitude is obtained by amplifying the substrate noise by the channel gain of the receiver.
In the embodiment of the invention, the analog voltage acquisition unit is a detector and a peripheral circuit thereof.
In the embodiment of the invention, the comparison unit is preset with reference voltage as a judgment basis and compares the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage; if the analog voltage is greater than the reference voltage, outputting a high level to indicate that the corresponding channel of the receiver works normally; if the analog voltage is less than the reference voltage, a low level is output, which indicates that the corresponding channel of the receiver is not working normally.
In the embodiment of the invention, the comparison unit is a singlechip; the reference voltage is generated in the single chip microcomputer, and the analog voltage of each channel of the receiver is sent to an I \ O port of the single chip microcomputer.
The components related to the above scheme have been described in detail in the foregoing embodiments of the apparatus, and therefore are not described in detail again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An apparatus for detecting the operating condition of a receiver channel, comprising:
the analog voltage acquisition unit is used for determining the analog voltage of each channel of the receiver; the analog voltage acquisition unit acquires the intermediate frequency noise amplitude of each channel of the receiver so as to determine the corresponding analog voltage; the intermediate frequency noise amplitude is obtained by amplifying the substrate noise by the channel gain of the receiver;
the comparison unit is used for comparing the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage to determine the working state of each channel of the receiver; wherein the reference voltage can be changed according to different temperature states;
and the voltage stabilizing unit is used for providing stable voltage for the analog voltage acquisition unit and the comparison unit and realizing the isolation of an external circuit.
2. The apparatus of claim 1, wherein the analog voltage acquisition unit is a detector and its peripheral circuits.
3. The receiver channel operation state detection device according to claim 1,
the comparison unit is preset with reference voltage as a judgment basis and compares the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage; if the analog voltage is greater than the reference voltage, outputting a high level to indicate that the corresponding channel of the receiver works normally; if the analog voltage is less than the reference voltage, a low level is output, which indicates that the corresponding channel of the receiver is not working normally.
4. The receiver channel working state detection device according to claim 1 or 3, wherein the comparison unit is a single chip microcomputer; the reference voltage is generated in the single chip microcomputer, and the analog voltage of each channel of the receiver is sent to an I \ O port of the single chip microcomputer.
5. A method for detecting the operating status of a receiver channel, comprising:
determining the analog voltage of each channel of the receiver by using an analog voltage acquisition unit; the analog voltage acquisition unit acquires the intermediate frequency noise amplitude of each channel of the receiver so as to determine the corresponding analog voltage; the intermediate frequency noise amplitude is obtained by amplifying the substrate noise by the channel gain of the receiver;
comparing the magnitude relation between the analog voltage and the reference voltage of each channel of the receiver by using a comparison unit to determine the working state of each channel of the receiver; wherein the reference voltage can be changed according to different temperature states;
and the voltage stabilizing unit is used for providing stable voltage for the analog voltage acquisition unit and the comparison unit and realizing the isolation of an external circuit.
6. The method as claimed in claim 5, wherein the analog voltage obtaining unit is a detector and its peripheral circuits.
7. The receiver channel operation state detection method according to claim 5,
the comparison unit is preset with reference voltage as a judgment basis and compares the magnitude relation between the analog voltage of each channel of the receiver and the reference voltage; if the analog voltage is greater than the reference voltage, outputting a high level to indicate that the corresponding channel of the receiver works normally; if the analog voltage is less than the reference voltage, a low level is output, which indicates that the corresponding channel of the receiver is not working normally.
8. The receiver channel working state detection method according to claim 5 or 7, wherein the comparison unit is a single chip microcomputer; the reference voltage is generated in the single chip microcomputer, and the analog voltage of each channel of the receiver is sent to an I \ O port of the single chip microcomputer.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4087803B2 (en) * | 2004-02-10 | 2008-05-21 | 三菱電機株式会社 | Millimeter-wave transceiver module and bias adjustment method |
| CN203719811U (en) * | 2014-01-14 | 2014-07-16 | 南京信息工程大学 | Weak voltage signal detection device of micro-voltage sensor |
| CN104881075A (en) * | 2014-02-28 | 2015-09-02 | 德州仪器公司 | Power control for multichannel signal processing circuit |
| CN107181538A (en) * | 2017-06-22 | 2017-09-19 | 天津七六四通信导航技术有限公司 | A kind of intermediate-freuqncy signal power-sensing circuit and detection method |
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- 2018-01-17 CN CN201810044935.8A patent/CN108234041B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4087803B2 (en) * | 2004-02-10 | 2008-05-21 | 三菱電機株式会社 | Millimeter-wave transceiver module and bias adjustment method |
| CN203719811U (en) * | 2014-01-14 | 2014-07-16 | 南京信息工程大学 | Weak voltage signal detection device of micro-voltage sensor |
| CN104881075A (en) * | 2014-02-28 | 2015-09-02 | 德州仪器公司 | Power control for multichannel signal processing circuit |
| CN107181538A (en) * | 2017-06-22 | 2017-09-19 | 天津七六四通信导航技术有限公司 | A kind of intermediate-freuqncy signal power-sensing circuit and detection method |
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