CN217932094U - Positioning control circuit and equipment based on GPS - Google Patents
Positioning control circuit and equipment based on GPS Download PDFInfo
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- CN217932094U CN217932094U CN202220607145.8U CN202220607145U CN217932094U CN 217932094 U CN217932094 U CN 217932094U CN 202220607145 U CN202220607145 U CN 202220607145U CN 217932094 U CN217932094 U CN 217932094U
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Abstract
The utility model discloses a positioning control circuit and equipment based on GPS, including GPS signal reception module, wherein, GPS signal reception module includes converter, signal selection circuit module, first coupling circuit module, second coupling circuit module, third coupling circuit module, first divider circuit module, second divider circuit module, signal amplification circuit module, filter circuit module, negative feedback circuit module and power, signal selection circuit module with the converter electricity is connected, first coupling circuit module first divider circuit module reaches signal amplification circuit module all with signal selection circuit module electricity is connected. The utility model has the advantages of good stability and good interference killing feature.
Description
Technical Field
The utility model relates to a satellite communication technical field, in particular to positioning control circuit and equipment based on GPS.
Background
With the development of communication technology, the communication demand of users for electronic equipment is higher and higher, and with the popularization of household-computer cars, the GPS positioning system is also more popularized. The positioning control circuit of GPS is widely used in navigation satellite communication equipment and other radio equipment, and in a GPS navigator, a signal sensed from an antenna is very weak in a process of receiving a satellite signal, which requires amplification of the signal. However, the stability of the amplifier in the existing GPS-based positioning control circuit is poor, which results in poor stability of the GPS-based positioning control circuit.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be, provide a better positioning control circuit and equipment based on GPS of stability.
In a first aspect, the present invention provides a positioning control circuit based on GPS, comprising a GPS signal receiving module, wherein the GPS signal receiving module comprises a converter, a signal selecting circuit module, a first coupling circuit module, a second coupling circuit module, a third coupling circuit module, a first voltage dividing circuit module, a second voltage dividing circuit module, a signal amplifying circuit module, a filter circuit module, a negative feedback circuit module, and a power supply, and the signal selecting circuit module is electrically connected to the converter;
the first coupling circuit module, the first voltage division circuit module and the signal amplification circuit module are all electrically connected with the signal selection circuit module, the second coupling circuit module is electrically connected with the first voltage division circuit module and the signal amplification circuit module, the filter circuit module is electrically connected with the signal amplification circuit module and the second voltage division circuit module, the second voltage division circuit module is electrically connected with the power supply, and the third coupling circuit module is electrically connected with the second voltage division circuit module and the negative feedback circuit module.
In one embodiment, the signal selection circuit module includes a first inductor, a second inductor, and a first capacitor, a first terminal of the first inductor is electrically connected to a first terminal of the first capacitor, a second terminal of the first inductor is electrically connected to a second terminal of the first capacitor, a third terminal of the first inductor is electrically connected to the converter, the second inductor is coupled to the first inductor, a first terminal of the second inductor is electrically connected to the first coupling circuit module, and a second terminal of the second inductor is electrically connected to the first voltage division circuit module.
In one embodiment, the first coupling circuit module includes a second capacitor, a first terminal of the second capacitor is electrically connected to a first terminal of the second inductor, and a second terminal of the second capacitor is electrically connected to the degeneration circuit module.
In one embodiment, the first voltage dividing circuit module comprises a first resistor and a second resistor, a first end of the first resistor is electrically connected with a first end of the second resistor, and a second end of the first resistor is electrically connected with the power supply; the first end of the second resistor is electrically connected with the second coupling circuit module and the second end of the second inductor, and the second end of the second resistor is grounded.
In one embodiment, the second coupling circuit module includes a third capacitor, a first end of the third capacitor is electrically connected to the first end of the second resistor, and a second end of the third capacitor is electrically connected to the signal amplification circuit module.
In one embodiment, the signal amplification circuit module includes a first triode, a third resistor and a fourth capacitor, a base of the first triode is electrically connected with the first end of the second inductor, a collector of the first triode is electrically connected with the filter circuit module, and an emitter of the first triode is electrically connected with the first end of the third resistor; the first end of the third resistor is electrically connected with the second end of the third capacitor, the second end of the third resistor is grounded, the first end of the fourth capacitor is electrically connected with the first end of the third resistor, and the second end of the fourth capacitor is grounded.
In one embodiment, the filter circuit module includes a third inductor, a fourth inductor, and a fifth capacitor, a first terminal of the third inductor is electrically connected to the power supply, a second terminal of the third inductor is electrically connected to a first terminal of the fifth capacitor, and a third terminal of the third inductor is electrically connected to a second terminal of the fifth capacitor; the fourth inductor and the third inductor are coupled with each other, a first end of the fourth inductor is used for being electrically connected with a load, and a second end of the fourth inductor is electrically connected with the third coupling circuit; and the second end of the fifth capacitor is electrically connected with the collector electrode of the first triode.
In one embodiment, the third coupling circuit module includes a sixth capacitor, a first end of the sixth capacitor is electrically connected to the second voltage divider circuit module, and a second end of the sixth capacitor is electrically connected to the negative feedback circuit module.
In one embodiment, the negative feedback circuit module includes a second triode, a fourth resistor and a seventh capacitor, a base of the second triode is electrically connected with the fourth inductor, a collector of the second triode is used for being electrically connected with the microprocessor, an emitter of the second triode is electrically connected with a first end of the fourth resistor, a second end of the fourth resistor is grounded, and the seventh capacitor is connected with the fourth resistor in parallel.
In a second aspect, the present invention also discloses an apparatus, which comprises the GPS-based positioning control circuit according to any one of the above first aspects.
The utility model discloses following beneficial effect has: the utility model discloses a cooperation between converter, signal selection circuit module, first coupling circuit module, second coupling circuit module, third coupling circuit module, first divider circuit module, second divider circuit module, signal amplification circuit module, filter circuit module, the negative feedback circuit module, the during operation passes through signal selection circuit selects required frequency signal, offsets the feedback effect of signal amplification circuit module through the negative feedback circuit module and improves the stability of circuit. Therefore, the utility model has the advantages of stability is good and the interference killing feature is good.
Drawings
Fig. 1 is a circuit diagram of the GPS signal receiving module of the positioning control circuit based on GPS of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples. It should be noted that, if there is no conflict, the embodiments and various features in the embodiments of the present invention may be combined with each other, and all are within the scope of the present invention.
Referring to fig. 1, the present invention provides a positioning control circuit based on GPS, which includes a GPS signal receiving module and a microprocessor, wherein the microprocessor may be a single chip or a programmable logic array. In this embodiment, the GPS signal receiving module includes a converter 1, a signal selection circuit module 2, a first coupling circuit module 3, a second coupling circuit module 4, a third coupling circuit module 5, a first voltage division circuit module 6, a second voltage division circuit module 7, a signal amplification circuit module 8, a filter circuit module 9, a negative feedback circuit module 10, and a power supply Vcc, and the signal selection circuit module 2 is electrically connected to the converter 1. In particular, the transducer 1 is an antenna.
The first coupling circuit module 3, the first voltage dividing circuit module 6, and the signal amplifying circuit module 8 are all electrically connected to the signal selecting circuit module 2, the second coupling circuit module 4 is electrically connected to the first voltage dividing circuit module 6 and the signal amplifying circuit module 8, the filter circuit module 9 is electrically connected to the signal amplifying circuit module 8 and the second voltage dividing circuit module 7, the second voltage dividing circuit module 7 is electrically connected to the power supply Vcc, and the third coupling circuit module 5 is electrically connected to the second voltage dividing circuit module 7 and the negative feedback circuit module 10.
The signal selection circuit module 2 includes a first inductor L1, a second inductor L2, and a first capacitor C1, a first end of the first inductor L1 is electrically connected to a first end of the first capacitor C1, a second end of the first inductor L1 is electrically connected to a second end of the first capacitor C1, a third end of the first inductor L1 is electrically connected to the converter 1, the second inductor L2 is coupled to the first inductor L1, a first end of the second inductor L2 is electrically connected to the first coupling circuit module 3, and a second end of the second inductor L2 is electrically connected to the first voltage division circuit module 6. In this embodiment, the first capacitor C1 is a variable capacitor, so that the capacitance thereof can be adjusted as required, thereby selecting a desired signal.
The first coupling circuit module includes a second capacitor C2, a first end of the second capacitor C2 is electrically connected to a first end of the second inductor L2, and a second end of the second capacitor C2 is electrically connected to the negative feedback circuit module 10. Through the second capacitor C2, interference signals can be better filtered. The first voltage dividing circuit module 6 includes a first resistor R1 and a second resistor R2, a first end of the first resistor R1 is electrically connected to a first end of the second resistor R2, and a second end of the first resistor R1 is electrically connected to the power Vcc. A first end of the second resistor R2 is electrically connected to the second coupling circuit module 4 and a second end of the second inductor L2, and a second end of the second resistor R2 is grounded.
The second coupling circuit module comprises a third capacitor C3, a first end of the third capacitor C3 is electrically connected with a first end of the second resistor R2, and a second end of the third capacitor C3 is electrically connected with the signal amplification circuit module 8.
The signal amplification circuit module comprises a first triode Q1, a third resistor R3 and a fourth capacitor C4, the base electrode of the first triode Q1 is electrically connected with the first end of the second inductor L2, the collector electrode of the first triode Q1 is electrically connected with the filter circuit module 9, and the emitter electrode of the first triode Q1 is electrically connected with the first end of the third resistor R3. The first end of the third resistor R3 is electrically connected to the second end of the third capacitor C3, the second end of the third resistor R3 is grounded, the first end of the fourth capacitor C4 is electrically connected to the first end of the third resistor R3, and the second end of the fourth capacitor C4 is grounded. The signal amplification circuit can amplify weak signals.
The filter circuit module 9 includes a third inductor L3, a fourth inductor L4, and a fifth capacitor C5, wherein a first end of the third inductor L3 is electrically connected to the power Vcc, a second end of the third inductor L3 is electrically connected to a first end of the fifth capacitor C5, and a third end of the third inductor L3 is electrically connected to a second end of the fifth capacitor C5. The fourth inductor L4 and the third inductor L3 are coupled to each other, a first end of the fourth inductor L4 is used for being electrically connected to a load, and a second end of the fourth inductor L4 is electrically connected to the third coupling circuit. The second end of the fifth capacitor C5 is electrically connected to the collector of the first triode Q1.
The third coupling circuit module includes a sixth capacitor C6, a first end of the sixth capacitor C6 is electrically connected to the second voltage dividing circuit module 7, and a second end of the sixth capacitor C6 is electrically connected to the negative feedback circuit module 10. The negative feedback circuit module 10 includes a second triode Q2, a fourth resistor R4 and a seventh capacitor, the base of the second triode Q2 is electrically connected to the fourth inductor L4, the collector of the second triode Q2 is used to be electrically connected to the microprocessor, the emitter of the second triode Q2 is electrically connected to the first end of the fourth resistor R4, the second end of the fourth resistor R4 is grounded, and the seventh capacitor is connected in parallel to the fourth resistor R4.
The second voltage-dividing circuit module 7 includes a fifth resistor R5 and a sixth resistor R6, a first end of the fifth resistor R5 is electrically connected to the power source Vcc, and a second end of the fifth resistor R5 is electrically connected to a first end of the sixth capacitor C6. A first end of the sixth resistor R6 is electrically connected to a first end of the sixth capacitor C6, and a second end of the sixth resistor R6 is grounded.
The utility model discloses still disclose an equipment, it includes the aforesaid location control circuit based on GPS. The GPS-based positioning control circuit of the device has the same structure as the GPS-based positioning control circuit of the above embodiment, and therefore, the device also has the same technical effects. It is to be understood that the device may be a GPS navigator or the like, and is not particularly limited thereto.
To sum up, the utility model discloses a cooperation between converter 1, signal selection circuit module 2, first coupling circuit module 3, second coupling circuit module 4, third coupling circuit module 5, first voltage divider circuit module 6, second voltage divider circuit module 7, signal amplification circuit module 8, filter circuit module 9, the negative feedback circuit module 10, the during operation passes through signal selection circuit selects required frequency signal, and the feedback that offsets signal amplification circuit module 8 through negative feedback circuit module 10 is used for improving circuit's stability. Therefore, the utility model has the advantages of stability is good and the interference killing feature is good.
The positioning control circuit based on GPS provided by the present invention is introduced in detail, and a specific example is applied to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. To sum up, this description content only does the embodiment of the utility model, not therefore the restriction the patent scope of the utility model, all utilize the equivalent structure or the equivalent flow transform that the content of the description and the attached drawing was done, or directly or indirectly use in other relevant technical field, all the same reason is included in the patent protection scope of the utility model, should not be understood as right the utility model discloses a restriction.
Claims (10)
1. A GPS-based positioning control circuit comprises a GPS signal receiving module, and is characterized in that the GPS signal receiving module comprises a converter, a signal selection circuit module, a first coupling circuit module, a second coupling circuit module, a third coupling circuit module, a first voltage division circuit module, a second voltage division circuit module, a signal amplification circuit module, a filter circuit module, a negative feedback circuit module and a power supply, wherein the signal selection circuit module is electrically connected with the converter;
the first coupling circuit module, the first voltage division circuit module and the signal amplification circuit module are all electrically connected with the signal selection circuit module, the second coupling circuit module is electrically connected with the first voltage division circuit module and the signal amplification circuit module, the filter circuit module is electrically connected with the signal amplification circuit module and the second voltage division circuit module, the second voltage division circuit module is electrically connected with the power supply, and the third coupling circuit module is electrically connected with the second voltage division circuit module and the negative feedback circuit module.
2. The GPS-based positioning control circuit according to claim 1, wherein the signal selection circuit module comprises a first inductor, a second inductor and a first capacitor, a first terminal of the first inductor is electrically connected to a first terminal of the first capacitor, a second terminal of the first inductor is electrically connected to a second terminal of the first capacitor, a third terminal of the first inductor is electrically connected to the converter, the second inductor is coupled to the first inductor, a first terminal of the second inductor is electrically connected to the first coupling circuit module, and a second terminal of the second inductor is electrically connected to the first voltage division circuit module.
3. The GPS-based positioning control circuit of claim 2, wherein the first coupling circuit module includes a second capacitor, a first end of the second capacitor being electrically connected to a first end of the second inductor, a second end of the second capacitor being electrically connected to the negative feedback circuit module.
4. The GPS-based positioning control circuit of claim 2, wherein the first voltage divider circuit module comprises a first resistor and a second resistor, a first end of the first resistor is electrically connected to a first end of the second resistor, and a second end of the first resistor is electrically connected to the power supply; the first end of the second resistor is electrically connected with the second coupling circuit module and the second end of the second inductor, and the second end of the second resistor is grounded.
5. The GPS-based positioning control circuit of claim 4, wherein the second coupling circuit module includes a third capacitor, a first end of the third capacitor being electrically connected to the first end of the second resistor, a second end of the third capacitor being electrically connected to the signal amplification circuit module.
6. The GPS-based positioning control circuit according to claim 5, wherein the signal amplification circuit module comprises a first transistor, a third resistor and a fourth capacitor, wherein a base of the first transistor is electrically connected to the first terminal of the second inductor, a collector of the first transistor is electrically connected to the filter circuit module, and an emitter of the first transistor is electrically connected to the first terminal of the third resistor; the first end of the third resistor is electrically connected with the second end of the third capacitor, the second end of the third resistor is grounded, the first end of the fourth capacitor is electrically connected with the first end of the third resistor, and the second end of the fourth capacitor is grounded.
7. The GPS-based positioning control circuit according to claim 6, wherein the filter circuit module includes a third inductor, a fourth inductor and a fifth capacitor, a first terminal of the third inductor is electrically connected to the power supply, a second terminal of the third inductor is electrically connected to a first terminal of the fifth capacitor, and a third terminal of the third inductor is electrically connected to a second terminal of the fifth capacitor; the fourth inductor and the third inductor are coupled with each other, a first end of the fourth inductor is used for being electrically connected with a load, and a second end of the fourth inductor is electrically connected with the third coupling circuit; and the second end of the fifth capacitor is electrically connected with the collector electrode of the first triode.
8. The GPS-based positioning control circuit of claim 7, wherein the third coupling circuit module comprises a sixth capacitor, a first terminal of the sixth capacitor being electrically connected to the second voltage divider circuit module, and a second terminal of the sixth capacitor being electrically connected to the negative feedback circuit module.
9. The GPS-based positioning control circuit according to claim 8, wherein the negative feedback circuit module comprises a second transistor, a fourth resistor and a seventh capacitor, wherein a base of the second transistor is electrically connected to the fourth inductor, a collector of the second transistor is electrically connected to the microprocessor, an emitter of the second transistor is electrically connected to a first terminal of the fourth resistor, a second terminal of the fourth resistor is grounded, and the seventh capacitor is connected in parallel to the fourth resistor.
10. A device comprising a GPS based positioning control circuit according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220607145.8U CN217932094U (en) | 2022-03-18 | 2022-03-18 | Positioning control circuit and equipment based on GPS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220607145.8U CN217932094U (en) | 2022-03-18 | 2022-03-18 | Positioning control circuit and equipment based on GPS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217932094U true CN217932094U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220607145.8U Expired - Fee Related CN217932094U (en) | 2022-03-18 | 2022-03-18 | Positioning control circuit and equipment based on GPS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217932094U (en) |
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2022
- 2022-03-18 CN CN202220607145.8U patent/CN217932094U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |