CN203084130U - Gps antenna state detection circuit - Google Patents
Gps antenna state detection circuit Download PDFInfo
- Publication number
- CN203084130U CN203084130U CN 201220724706 CN201220724706U CN203084130U CN 203084130 U CN203084130 U CN 203084130U CN 201220724706 CN201220724706 CN 201220724706 CN 201220724706 U CN201220724706 U CN 201220724706U CN 203084130 U CN203084130 U CN 203084130U
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- triode
- resistance
- gps antenna
- emitter
- base stage
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Abstract
The utility model provides a GPS antenna state detection circuit, wherein the on-off states of the GPS antenna are detected, and the problem that in the prior GPS antenna detection method the antenna performance is easy to influence and other problems are solved. The GPS antenna state detection circuit comprises a GPS antenna, a detection circuit and a one-chip microcomputer. The input terminal of the detection circuit is electrically connected with the GPS antenna, and the output terminal of the detection circuit is electrically connected with the one-chip microcomputer.
Description
Technical field
The utility model relates to testing circuit, particularly the gps antenna state detection circuit.
Background technology
The general method that detects gps antenna is: use current detecting IC chip that the electric current of antenna is detected.This detection method cost is than higher, and might the performance of antenna be affected, and causes signal attenuation.
The utility model content
The utility model provides a kind of gps antenna state detection circuit, detects by the break-make of judging gps antenna, solves existing gps antenna detection method easily to problems such as antenna performance impact.
The technical solution of the utility model is achieved in that
The gps antenna state detection circuit comprises gps antenna, testing circuit and single-chip microcomputer, and the input end of described testing circuit is electrically connected with described gps antenna, and the output terminal of described testing circuit is electrically connected with described single-chip microcomputer.
Described testing circuit comprises power supply, stabilivolt T1 and triode Q1, triode Q2, triode Q3 and triode Q4; The base stage of described triode Q1 is electrically connected with described gps antenna, and the emitter of described triode Q1 is connected by resistance R 1 with base stage; The emitter of described triode Q1 is connected to described power supply by resistance R 2; The collector of described triode Q1 is connected to the base stage of triode Q2 by resistance R 3, is connected with resistance R 4 between the base stage of described triode Q2 and the emitter; The emission collector of described triode Q2 is electrically connected with described single-chip microcomputer; The emitter of described triode Q3 is connected with described power supply, is connected with resistance R 5 between the emitter of described triode Q3 and the base stage, and the collector of described triode Q3 is connected to the base stage of the triode Q4 of institute by resistance R 6; Be connected with resistance R 7 between the base stage of described triode Q4 and the emitter; The collector of described triode Q4 is connected in described single-chip microcomputer; The negative pole of described stabilivolt T1 is connected to the ground level of described triode Q3 by resistance R 8, and the positive pole of described stabilivolt T1 is electrically connected and ground connection with the emitter of described triode Q2 and triode Q4; The reference voltage output stage of described stabilivolt T1 is connected to the emitter of described triode Q1 by a resistance R 9; The reference voltage output stage of described stabilivolt T1 is by resistance R 10 ground connection.
Described triode Q1 and described triode Q3 are the positive-negative-positive triode, and described triode Q2 and described triode Q4 are NPN type triode.
Compare with prior art to description of the present utility model as can be known by above-mentioned, the utlity model has following advantage:
The simple triode of the utility model utilization, resistance, stabilivolt etc. are formed testing circuit, states such as the connection by judging antenna, disconnection, short circuit, and then judge the situation of gps antenna, have circuit simple, with low cost, take up room little, antenna do not had an advantage such as influence.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a circuit theory synoptic diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, the gps antenna state detection circuit comprises gps antenna 1, testing circuit 3 and single-chip microcomputer 2, and the input end of described testing circuit 3 is electrically connected with described gps antenna 1, and the output terminal of described testing circuit 3 is electrically connected with described single-chip microcomputer 2.
With reference to Fig. 1, described testing circuit 3 comprises power Vcc, stabilivolt T1 and triode Q1, triode Q2, triode Q3, triode Q4; The base stage of described triode Q1 is electrically connected with described gps antenna, and the emitter of described triode Q1 is connected by resistance R 1 with base stage; The emitter of described triode Q1 is connected to described power Vcc by resistance R 2; The collector of described triode Q1 is connected to the base stage of triode Q2 by resistance R 3, is connected with resistance R 4 between the base stage of described triode Q2 and the emitter; The emission collector of described triode Q2 is electrically connected with described single-chip microcomputer; The emitter of described triode Q3 is connected with described power supply, is connected with resistance R 5 between the emitter of described triode Q3 and the base stage, and the collector of described triode Q3 is connected to the base stage of the triode Q4 of institute by resistance R 6; Be connected with resistance R 7 between the base stage of described triode Q4 and the emitter; The collector of described triode Q4 is connected in described single-chip microcomputer 2; The negative pole of described stabilivolt T1 is connected to the ground level of described triode Q3 by resistance R 8, and the positive pole of described stabilivolt T1 is electrically connected and ground connection with the emitter of described triode Q2 and triode Q4; The reference voltage output stage of described stabilivolt T1 is connected to the emitter of described triode Q1 by a resistance R 9; The reference voltage output stage of described stabilivolt T1 is by resistance R 10 ground connection.Described triode Q1 and described triode Q3 are the positive-negative-positive triode, and described triode Q2 and described triode Q4 are NPN type triode.
Principle of work of the present utility model is as follows:
The supply voltage of testing circuit of the present utility model is 5V, antenna is an active antenna, when antenna is connected, the base stage input high level of triode Q1, triode Q1 ends, the current collection of triode Q2 is high level very, and single-chip microcomputer collects the high level signal of triode Q2 collector input, and the judgement antenna is normally connected; In the time of the antenna short circuit, the base stage of triode Q1 is a low level, and the current collection of triode Q4 is low level very, and single-chip microcomputer is judged antenna short circuit.
Compare with prior art, the utlity model has following advantage:
The simple triode of the utility model utilization, resistance, stabilivolt etc. are formed testing circuit, states such as the connection by judging antenna, disconnection, short circuit, and then judge the situation of gps antenna, have circuit simple, with low cost, take up room little, antenna do not had an advantage such as influence.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1.GPS the antenna condition testing circuit is characterized in that: comprise gps antenna, testing circuit and single-chip microcomputer, the input end of described testing circuit is electrically connected with described gps antenna, and the output terminal of described testing circuit is electrically connected with described single-chip microcomputer.
2. gps antenna state detection circuit as claimed in claim 1 is characterized in that: described testing circuit comprises power supply, stabilivolt T1 and triode Q1, triode Q2, triode Q3 and triode Q4;
The base stage of described triode Q1 is electrically connected with described gps antenna, and the emitter of described triode Q1 is connected by resistance R 1 with base stage;
The emitter of described triode Q1 is connected to described power supply by resistance R 2; The collector of described triode Q1 is connected to the base stage of triode Q2 by resistance R 3, is connected with resistance R 4 between the base stage of described triode Q2 and the emitter; The emission collector of described triode Q2 is electrically connected with described single-chip microcomputer;
The emitter of described triode Q3 is connected with described power supply, is connected with resistance R 5 between the emitter of described triode Q3 and the base stage, and the collector of described triode Q3 is connected to the base stage of the triode Q4 of institute by resistance R 6; Be connected with resistance R 7 between the base stage of described triode Q4 and the emitter; The collector of described triode Q4 is connected in described single-chip microcomputer;
The negative pole of described stabilivolt T1 is connected to the ground level of described triode Q3 by resistance R 8, and the positive pole of described stabilivolt T1 is electrically connected and ground connection with the emitter of described triode Q2 and triode Q4; The reference voltage output stage of described stabilivolt T1 is connected to the emitter of described triode Q1 by a resistance R 9; The reference voltage output stage of described stabilivolt T1 is by resistance R 10 ground connection.
3. gps antenna state detection circuit as claimed in claim 2 is characterized in that: described triode Q1 and described triode Q3 are the positive-negative-positive triode, and described triode Q2 and described triode Q4 are NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724706 CN203084130U (en) | 2012-12-24 | 2012-12-24 | Gps antenna state detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724706 CN203084130U (en) | 2012-12-24 | 2012-12-24 | Gps antenna state detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203084130U true CN203084130U (en) | 2013-07-24 |
Family
ID=48829955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724706 Expired - Fee Related CN203084130U (en) | 2012-12-24 | 2012-12-24 | Gps antenna state detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203084130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219821A (en) * | 2022-07-12 | 2022-10-21 | 苏州浪潮智能科技有限公司 | Electromagnetic compatibility monitoring circuit, method and system |
-
2012
- 2012-12-24 CN CN 201220724706 patent/CN203084130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219821A (en) * | 2022-07-12 | 2022-10-21 | 苏州浪潮智能科技有限公司 | Electromagnetic compatibility monitoring circuit, method and system |
| CN115219821B (en) * | 2022-07-12 | 2024-01-19 | 苏州浪潮智能科技有限公司 | Electromagnetic compatibility monitoring circuit, method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |