CN215682516U - Integrated dual-channel down-conversion device and telemetering receiving system - Google Patents
Integrated dual-channel down-conversion device and telemetering receiving system Download PDFInfo
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- CN215682516U CN215682516U CN202121888454.9U CN202121888454U CN215682516U CN 215682516 U CN215682516 U CN 215682516U CN 202121888454 U CN202121888454 U CN 202121888454U CN 215682516 U CN215682516 U CN 215682516U
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Abstract
The utility model provides an integrated dual-channel down-conversion device, which comprises: the processing unit is used for being connected with the upper computer; a first local oscillator coupled to the processing unit; a first power divider coupled to the first local oscillator; and the first left-handed frequency conversion unit and the first right-handed frequency conversion unit are respectively connected with the first power divider. In addition, the utility model also provides a telemetering receiving system comprising the integrated dual-channel down-conversion device. According to the integrated dual-channel down-conversion device and the telemetering receiving system, only one processing unit and one local oscillator are used for generating the local carrier signal, and then the local carrier signal is divided into two parts by the power divider and is respectively output to the two frequency conversion units, so that at least one group of processing unit and local oscillator are saved, the cost is greatly reduced, the size of the device is reduced, and the circuit is simplified.
Description
Technical Field
The utility model relates to the technical field of telemetering and receiving, in particular to an integrated dual-channel down-conversion device and a telemetering and receiving system.
Background
In a telemetering receiving system, left-handed and right-handed high-frequency carrier signals need to be received through a receiving antenna, then down-conversion is carried out on two paths of high-frequency carrier signals through corresponding down-conversion devices to obtain two paths of intermediate-frequency carrier signals, and finally the two paths of intermediate-frequency carrier signals are demodulated and output. In the prior art, the dual-channel down-conversion device capable of simultaneously performing down-conversion on two paths of high-frequency carrier signals is arranged, and the dual-channel down-conversion device is directly connected with a receiving antenna and an upper computer respectively, so that the dual-channel down-conversion device is simple and efficient.
However, each channel in the dual-channel down-conversion device in the prior art is independent, has many identical units, and can be used as a single-channel down-conversion device, so that the cost is too high, the size is too large, and the circuit is too complex.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an integrated dual-channel down-conversion device and a telemetering receiving system.
In a first aspect, in one embodiment, the present invention provides an integrated dual channel down-conversion device, including:
the processing unit is used for being connected with the upper computer;
a first local oscillator coupled to the processing unit;
a first power divider coupled to the first local oscillator;
and the first left-handed frequency conversion unit and the first right-handed frequency conversion unit are respectively connected with the first power divider.
In one embodiment, the integrated dual channel down conversion apparatus further includes:
a second local oscillator coupled to the processing unit;
a second power divider connected to the second local oscillator;
the second left-handed frequency conversion unit and the second right-handed frequency conversion unit are respectively connected with the second power divider;
the first left-handed frequency conversion unit and the first right-handed frequency conversion unit are respectively connected with the second left-handed frequency conversion unit and the second right-handed frequency conversion unit.
In one embodiment, the integrated dual channel down conversion apparatus further includes:
a CPCI interface connected with the processing unit;
the processing unit is used for being connected with the upper computer through the CPCI interface.
In one embodiment, the processing unit, the first local oscillator, the second local oscillator, the first power divider, the second power divider, the first left-handed frequency conversion unit, the second left-handed frequency conversion unit, the first right-handed frequency conversion unit, and the second right-handed frequency conversion unit are respectively disposed at corresponding positions of a multi-layer circuit board.
In one embodiment, the first power divider and the second power divider are both disposed on an intermediate layer of the multilayer circuit board.
In one embodiment, the processing unit is a single chip microcomputer.
In one embodiment, the integrated dual channel down conversion apparatus further includes:
and the power supply unit is connected with the singlechip.
In one embodiment, the integrated dual channel down conversion apparatus further includes:
a power supply protection unit; the power supply unit is used for being connected with the single chip microcomputer through the power supply protection unit.
In one embodiment, the power supply protection unit includes an overload protection circuit and an overcurrent protection circuit.
In a second aspect, in one embodiment, the present invention provides a telemetry reception system comprising any one of the integrated dual channel down conversion apparatus described above.
According to the integrated dual-channel down-conversion device and the telemetering receiving system, only one processing unit and one local oscillator are used for generating the local carrier signal, and then the local carrier signal is divided into two parts by the power divider and is respectively output to the two frequency conversion units, so that at least one group of processing unit and local oscillator are saved, the cost is greatly reduced, the size of the device is reduced, and the circuit is simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic circuit diagram of an integrated dual channel down converter according to an embodiment of the present invention;
fig. 2 is a schematic circuit structure diagram of a single chip microcomputer as a processing unit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In a first aspect, as shown in fig. 1, in one embodiment, the present invention provides an integrated dual channel down-conversion device, including:
the processing unit is used for being connected with the upper computer;
a first local oscillator coupled to the processing unit;
a first power divider coupled to the first local oscillator;
and the first left-handed frequency conversion unit and the first right-handed frequency conversion unit are respectively connected with the first power divider.
When the processing unit receives a frequency conversion instruction of the upper computer, a control signal is sent to the first local oscillator, the first local oscillator generates an intermediate frequency carrier signal with a preset frequency, the first local oscillator sends the generated intermediate frequency carrier signal to the first power divider, the first power divider divides the received intermediate frequency carrier signal into two parts which are respectively sent to the first left-handed frequency conversion unit and the first right-handed frequency conversion unit, the first left-handed frequency conversion unit and the first right-handed frequency conversion unit respectively carry out down-conversion on the intermediate frequency carrier signal and a high-frequency carrier signal received from an antenna to obtain a first intermediate frequency carrier signal which is then output, and subsequently, the first intermediate frequency carrier signal can be decoded according to the two first intermediate frequency carrier signals to obtain target information.
Through the integrated dual-channel down-conversion device, the local carrier signal is generated by only one processing unit and one local oscillator, and then the local carrier signal is divided into two parts by the power divider and is respectively output to the two frequency conversion units, so that at least one group of processing unit and the local oscillator are saved, the cost is greatly reduced, the size of the device is reduced, and the circuit is simplified.
As shown in fig. 1, the integrated dual channel down conversion apparatus further includes:
a second local oscillator coupled to the processing unit;
a second power divider connected to the second local oscillator;
the second left-handed frequency conversion unit and the second right-handed frequency conversion unit are respectively connected with the second power divider;
the first left-handed frequency conversion unit and the first right-handed frequency conversion unit are respectively connected with the second left-handed frequency conversion unit and the second right-handed frequency conversion unit.
In this embodiment, a second set of frequency conversion units is additionally provided to further down-convert the first intermediate frequency carrier signal obtained in the above embodiment, so as to obtain a second intermediate frequency carrier signal.
Through two times of down conversion and two times of frequency selection amplification, the frequency selection characteristic is better than that of one time, so that the interference on the obtained intermediate frequency carrier signal is small.
As shown in fig. 1, in an embodiment, the integrated dual channel down-conversion apparatus further includes:
a CPCI interface connected with the processing unit;
the processing unit is used for being connected with the upper computer through the CPCI interface.
Among them, a CPCI (Compact Peripheral Component Interconnect) interface has good physical properties such as durability, shock resistance, and ventilation in structure.
And the CPCI interface is adopted to be connected with an upper computer, so that the connection reliability is ensured.
In one embodiment, the processing unit, the first local oscillator, the second local oscillator, the first power divider, the second power divider, the first left-handed frequency conversion unit, the second left-handed frequency conversion unit, the first right-handed frequency conversion unit, and the second right-handed frequency conversion unit are respectively disposed at corresponding positions of a multi-layer circuit board.
The multilayer circuit board adopts a mode of arranging a plurality of wiring layers by a plurality of dielectric layers, two adjacent wiring layers are separated by one dielectric layer, the dielectric layers are very thin, and different layers can be interconnected through interlayer through holes. For example, the wiring structure comprises two dielectric layers and three wiring layers respectively arranged between the two dielectric layers and on two sides of the two dielectric layers, and for example, the wiring structure comprises three dielectric layers and five corresponding wiring layers.
The multi-layer circuit board may further include a multi-layer rigid circuit board, a multi-layer flexible circuit board and a multi-layer rigid-flexible circuit board according to the material.
Through the multilayer circuit board, the electromagnetic compatibility among different functional areas can be improved, the integration level can also be improved, and the size of the device is further reduced.
In one embodiment, the first power divider and the second power divider are both disposed on an intermediate layer of the multilayer circuit board.
The power divider serving as a passive device is arranged on the intermediate layer, so that the area utilization rate of the circuit can be improved.
As shown in fig. 2, in one embodiment, the processing unit is a single chip.
And a single chip microcomputer is used as a processing unit, so that the processing performance can be improved, and the reliability of the processing process is ensured.
As shown in fig. 2, in an embodiment, the integrated dual channel down-conversion apparatus further includes:
and the power supply unit is connected with the singlechip.
Through independently supplying power to the singlechip, the problem that the device cannot operate due to insufficient power supply distributed by the main control board is avoided, and the operation reliability is improved.
As shown in fig. 2, in an embodiment, the integrated dual channel down-conversion apparatus further includes:
a power supply protection unit; the power supply unit is used for being connected with the single chip microcomputer through the power supply protection unit.
Through the power supply protection unit, the singlechip can be prevented from being burnt.
In one embodiment, the power supply protection unit includes an overload protection circuit and an overcurrent protection circuit.
In a second aspect, in one embodiment, the present invention provides a telemetry reception system comprising any one of the integrated dual channel down conversion apparatus described above.
According to the telemetering receiving system, only one processing unit and one local oscillator are used for generating the local carrier signal, and then the local carrier signal is divided into two parts through the power divider and is respectively output to the two frequency conversion units, so that at least one group of processing unit and the local oscillator are saved, the cost is greatly reduced, the size of the device is reduced, and the circuit is simplified.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An integrated dual channel down conversion device, comprising:
the processing unit is used for being connected with the upper computer;
a first local oscillator coupled to said processing unit;
a first power divider coupled to the first local oscillator;
and the first left-handed frequency conversion unit and the first right-handed frequency conversion unit are respectively connected with the first power divider.
2. The integrated dual channel down conversion device of claim 1, further comprising:
a second local oscillator coupled to said processing unit;
a second power divider connected to the second local oscillator;
a second left-handed frequency conversion unit and a second right-handed frequency conversion unit respectively connected with the second power divider;
the first left-handed frequency conversion unit and the first right-handed frequency conversion unit are respectively connected with the second left-handed frequency conversion unit and the second right-handed frequency conversion unit.
3. The integrated dual channel down conversion device of claim 1, further comprising:
a CPCI interface connected with the processing unit;
the processing unit is used for being connected with an upper computer through the CPCI interface.
4. The integrated dual-channel down conversion apparatus according to claim 2, wherein the processing unit, the first local oscillator, the second local oscillator, the first power divider, the second power divider, the first left-handed frequency conversion unit, the second left-handed frequency conversion unit, the first right-handed frequency conversion unit, and the second right-handed frequency conversion unit are respectively disposed at corresponding positions of a multi-layered circuit board.
5. The integrated dual channel down conversion device of claim 4, wherein the first power divider and the second power divider are disposed on an intermediate layer of the multi-layer circuit board.
6. The integrated dual-channel down conversion device according to claim 1, wherein the processing unit is a single chip microcomputer.
7. The integrated dual channel down conversion device of claim 6, further comprising:
and the power supply unit is connected with the singlechip.
8. The integrated dual channel down conversion device of claim 7, further comprising:
a power supply protection unit; the power supply unit is used for being connected with the single chip microcomputer through the power supply protection unit.
9. The integrated dual channel down conversion device of claim 8, wherein the power supply protection unit comprises an overload protection circuit and an overcurrent protection circuit.
10. A telemetry receiving system comprising an integrated dual channel down conversion arrangement as claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121888454.9U CN215682516U (en) | 2021-08-12 | 2021-08-12 | Integrated dual-channel down-conversion device and telemetering receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121888454.9U CN215682516U (en) | 2021-08-12 | 2021-08-12 | Integrated dual-channel down-conversion device and telemetering receiving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215682516U true CN215682516U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121888454.9U Active CN215682516U (en) | 2021-08-12 | 2021-08-12 | Integrated dual-channel down-conversion device and telemetering receiving system |
Country Status (1)
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| CN (1) | CN215682516U (en) |
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2021
- 2021-08-12 CN CN202121888454.9U patent/CN215682516U/en active Active
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