Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 3 is used to detect the synoptic diagram of the pick-up unit embodiment one that the radio frequency interface extrapolation connects for the present invention, and as shown in Figure 3, this device comprises: radio-frequency (RF) switch connector 31 and testing circuit 33; Wherein testing circuit 33 is connected with radio-frequency (RF) switch connector 31.
Radio-frequency (RF) switch connector 31 is a mechanical switch structure, is the connector that is used to connect external radio frequency plug.
Testing circuit 33 is used for inserting according to radio-frequency (RF) switch connector 31 state of external radio frequency plug, in the detection port output high level or the low level of testing circuit 33.
When not inserting external radio frequency plug in the radio-frequency (RF) switch connector 31, external radio-frequency cable C and A point and B point are all less than being connected, and A point in the radio-frequency (RF) switch connector and B point are electrically connected, this moment testing circuit 33 detection port output high level (or low level); When inserting external radio frequency plug in the radio-frequency (RF) switch connector 31, external radio-frequency cable C is electrically connected with A point in the radio-frequency (RF) switch connector 31 by external radio frequency plug, and the B point in external radio-frequency cable C and the radio-frequency (RF) switch connector 33 disconnects, and the A point disconnects with the B point and being connected, at this moment the detection port output low level (or high level) of testing circuit 33.That is to say, concrete structure difference according to testing circuit, in radio-frequency (RF) switch connector 31, insert or when not inserting external radio frequency plug, the height difference of the level of the detection port output of testing circuit, according to the height of output level, can judge whether be inserted with external radio frequency plug in the radio-frequency (RF) switch connector.
Radio-frequency (RF) switch connector in the present embodiment can be applied to several scenes, for example: the transceiver connection external antenna that is used to have built-in aerial, under this application scenarios, A point among Fig. 3 connects the radio frequency transceiver front end, the B point connects the built-in aerial of transceiver, the C point is connected to external antenna, and when external like this radio frequency plug did not insert, the radio frequency transceiver front end just linked to each other with transceiver self built antenna; After the external radio frequency plug that connects external antenna inserted the radio-frequency (RF) switch connector, the radio frequency transceiver front end just linked to each other with external antenna, and disconnects with transceiver self built antenna.In addition, the radio-frequency (RF) switch connector also can be applicable to drawing of interior other radiofrequency signals of transceiver etc.Wherein built-in aerial is a kind of antenna form of transceiver, is characterized as to be built in radio transceiver device inside; External antenna is a kind of antenna form of transceiver, is characterized as to be placed on the radio transceiver device outside, links to each other with radio transceiver device by radio frequency connector.
After in detecting the radio-frequency (RF) switch connector, whether being inserted with external radio frequency plug, can control the work of other parts of communication facilities or other equipment according to testing result, for example: according to the insertion state-detection result of extrapolation radio frequency connector, terminal device can inform whether the user has external antenna to insert by indication (signal lamp or man-machine interface prompting etc.), to avoid the hardware damage that (port mismatch) user misoperation (such as opening radio frequency transceiver) causes under the situation that does not have antenna to connect; Perhaps, terminal device can be discerned the current wireless connection conditions that whether is in according to testing result, as going to control radio transmitted power according to antenna in the difference of the physical property of different frequent points in that wireless connection conditions is next, make it smooth in each frequency range, it is excessive to correct some frequency power simultaneously, to reduce Overall Power Consumption, reduce the complete machine heating.
The embodiment of the invention, the state exchange that external radio frequency plug is inserted or do not insert by testing circuit is DC level output, detects with convenient insertion state to the radio frequency switching connector.
Fig. 4 A is used to detect the synoptic diagram that pick-up unit embodiment two that the radio frequency interface extrapolation connects does not insert state for the present invention, and Fig. 4 B is used to detect the synoptic diagram of the pick-up unit embodiment two insertion states that the radio frequency interface extrapolation connects for the present invention; Shown in Fig. 4 A and Fig. 4 B, on the basis of device embodiment one, the testing circuit 33 in this device comprises first detecting unit 40.
First detecting unit 40 is used for when radio-frequency (RF) switch connector 31 inserts external radio frequency plug, detection port output high level at testing circuit 33, when not inserting external radio frequency plug in the radio-frequency (RF) switch connector 31, in the first detection port output low level of testing circuit.
First detecting unit 40 specifically can comprise: draw voltage port 49, first detection port 42 on first electric capacity 41, first inductance 43, second inductance 45, first resistance 47, first.
First end of first electric capacity 41 is electrically connected with the front end of the radio frequency transceiver of outside, and second end of first electric capacity 41 is electrically connected with first end of radio-frequency (RF) switch connector 31 and first end of first inductance 43 respectively.
The second end ground connection of first inductance 43.
First end of second inductance 45 is electrically connected with second end of radio-frequency (RF) switch connector 31, and second end of second inductance 45 is electrically connected with first end and first detection port 44 of first resistance 47 respectively.
Draw voltage port 49 to be electrically connected on second end and first of first resistance 47.
Wherein, the end of first end of radio-frequency (RF) switch connector 31 for when external radio frequency plug inserts, being connected with external radio frequency plug.
The electric capacity that uses in the present embodiment is capacitance, and the inductance that uses in the present embodiment is the straight inductance of resistance.
Present embodiment changes the topological structure of testing circuit by radio-frequency (RF) switch connector difference of self port connection status when having or not external radio frequency plug to insert, make the voltage of detection port of testing circuit also change thereupon, detect the purpose whether external radio frequency plug inserts thereby reach; Use capacitance and the sense of resistance alternating current guarantee the isolation between direct current and the high-frequency circuit in the while testing circuit.
In another embodiment of present embodiment, first detecting unit can also comprise second electric capacity 44.First end of second electric capacity 44 is electrically connected with the built-in aerial of the transceiver of outside, and second end of second electric capacity 44 is electrically connected with second end of radio-frequency (RF) switch connector 31 and first end of second inductance 45 respectively.
In the present embodiment, shown in Fig. 4 A, when external radio frequency plug did not insert the radio-frequency (RF) switch connector, first detection port 42 and earth terminal were communicated with, and this moment, first detection port was a low level; Shown in Fig. 4 B, when external radio frequency plug inserts the radio-frequency (RF) switch connector, the value that the voltage of first detection port 42 draws voltage on promptly being, this moment, first detection port was a high level.
Further, first inductance in the present embodiment can be replaced by resistance, and second inductance also can be replaced by resistance, and the resistance of the preferred high value of resistance here arrives hundreds of kilo-ohms as tens of.
The embodiment of the invention, the state exchange that external radio frequency plug is inserted by testing circuit is high level output, the state exchange that external radio frequency plug is not inserted is low level output, detects with convenient insertion state to the radio frequency switching connector.
Fig. 5 A is used to detect the synoptic diagram that pick-up unit embodiment three that the radio frequency interface extrapolation connects does not insert state for the present invention, and Fig. 5 B is used to detect the synoptic diagram of the pick-up unit embodiment three insertion states that the radio frequency interface extrapolation connects for the present invention; Shown in Fig. 5 A and Fig. 5 B, on the basis of device embodiment one, the testing circuit 33 in this device comprises second detecting unit 50.
Second detecting unit 50 is used for when radio-frequency (RF) switch connector 31 inserts external radio frequency plug, detection port output low level at testing circuit 33, when not inserting external radio frequency plug in the radio-frequency (RF) switch connector 31, at second detection port output high level of testing circuit 33.
Second detecting unit 50 specifically can comprise: draw voltage port 59, second detection port 52 on the 3rd electric capacity 51, the 3rd inductance 53, the 4th inductance 55, second resistance 57, second.
First end of the 3rd electric capacity 51 is electrically connected with the front end of the radio frequency transceiver of outside, and second end of the 3rd electric capacity 51 is electrically connected with first end of radio-frequency (RF) switch connector 31 and first end of the 3rd inductance 53 respectively.
Second end of the 3rd inductance 53 is electrically connected with first end of second detection port 52 and second resistance 57 respectively.
The second end ground connection of second resistance 57.
First end of the 4th inductance 55 is electrically connected with second end of radio-frequency (RF) switch connector 31, draws voltage port 59 to be electrically connected on second end and second of the 4th inductance 55.
Wherein, the end of first end of radio-frequency (RF) switch connector 31 for when external radio frequency plug inserts, being connected with external radio frequency plug.
The electric capacity that uses in the present embodiment is capacitance, and the inductance that uses in the present embodiment is the straight inductance of resistance.Present embodiment changes the topological structure of testing circuit by radio-frequency (RF) switch connector difference of self port connection status when having or not external radio frequency plug to insert, make the voltage of detection port of testing circuit also change thereupon, detect the purpose whether external radio frequency plug inserts thereby reach; Use capacitance and the sense of resistance alternating current guarantee the isolation between direct current and the high-frequency circuit in the while testing circuit.
In another embodiment of present embodiment, second detecting unit can also comprise the 4th electric capacity 54.First end of the 4th electric capacity 54 is electrically connected with the built-in aerial of the transceiver of outside, and second end of the 4th electric capacity 54 is electrically connected with second end of radio-frequency (RF) switch connector 31 and first end of the 4th inductance 55 respectively.
In the present embodiment, shown in Fig. 5 A, when external radio frequency plug does not insert the radio-frequency (RF) switch connector, draw voltage port 59 to be communicated with on second detection port 52 and second, this moment, second detection port 52 was a high level; Shown in Fig. 5 B, when external radio frequency plug inserts the radio-frequency (RF) switch connector, do not having on the external radio frequency plug under the situation of DC voltage, it is drop-down that the voltage of second detection port 52 is grounded end, and this moment, second detection port 52 was a low level.
Further, the 3rd inductance in the present embodiment can be replaced by resistance, and the 4th inductance also can be replaced by resistance, and the resistance here is preferably the resistance of high value, arrives hundreds of kilo-ohms as tens of.
The embodiment of the invention, the state exchange that external radio frequency plug is inserted by testing circuit is low level output, the state exchange that external radio frequency plug is not inserted is high level output, detects with convenient insertion state to the radio frequency switching connector.
The embodiment of the invention also provides a kind of method that the radio frequency interface extrapolation connects that is used to detect, this method uses that embodiment of the invention provides arbitraryly is used to detect the pick-up unit that the radio frequency interface extrapolation connects the radio frequency switching connector is detected, according to the output level of the detection port of pick-up unit, can judge the radio-frequency (RF) switch connector is whether to be inserted with external radio frequency plug in the radio frequency interface.
The embodiment of the invention, the state exchange that external radio frequency plug is inserted or do not insert by testing circuit is DC level output, detects with convenient insertion state to the radio frequency switching connector.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.