CN204905447U - Antenna equipment with radiofrequency signal intensity monitoring device - Google Patents
Antenna equipment with radiofrequency signal intensity monitoring device Download PDFInfo
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- CN204905447U CN204905447U CN201520667633.8U CN201520667633U CN204905447U CN 204905447 U CN204905447 U CN 204905447U CN 201520667633 U CN201520667633 U CN 201520667633U CN 204905447 U CN204905447 U CN 204905447U
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Abstract
The utility model provides an antenna equipment with radiofrequency signal intensity monitoring device, contains one and is used for receiving a radiofrequency signal, and exports an antenna signal's antenna, and the radiofrequency signal intensity monitoring device including a the detecting unit, an arithmetic element and a display element. This the detecting unit has a band pass filter, an amplifier and a radio frequency logarithmic detector. This antenna signal exports a detection voltage signal about this radiofrequency signal watt level behind this the detecting unit. The voltage signal that should detect is received to this arithmetic element to parameter according to in this the detecting unit is calculated, in order to export an intensity signal about this computation result. This display element has a plurality of illuminators that can produce different chromatic light to according to this intensity signal, the intensity information that demonstrates this radiofrequency signal with the illuminator figure that corresponds and chromatic light. Let the user find out to the intuition the present signal intensity who receives of this antenna, increase reliable degree and convenience in the adjustment procedure.
Description
Technical field
The utility model relates to a kind of antenna equipment, particularly relates to a kind of antenna equipment with radio-frequency (RF) signal strength arrangement for detecting.
Background technology
2012, TaiWan, China government widelyd popularize radiovision digitlization, not only the analog signal of radiovision was closed, and converted digitized signal to all sidedly.The common people only need complete the installation of antenna, namely receive radiovision signal to AV device by antenna, just can watch the hd-tv program that 15 to 20 are exempted to pay license fee.
But, because high-frequency signals is easily subject to the stop of landform or building, or because signal reflection produces multi-path interference, and have influence on signal quality.Therefore, antenna is often arranged at outdoor, and highly higher position, to obtain preferably signal reception quality; But, cause antenna and AV device to divide also and be in different floor or be separated by very far away, and allow user be difficult to confirm that whether putting of antenna obtain best signal quality immediately.
For the problems referred to above, settling mode common at present has two kinds: a kind of is watch by a people signal definition that AV device presents, and inform the situation of the current reception of another person of ornaments adjustment antenna, using the basis as adjustment result, and constantly attempt finding most suitable ornaments position and reception orientation.This mode not only adjustment process is tediously long, suitable labor intensive and time, and adopts the subjective judgement of individual to compare, and makes the superiority-inferiority of adjustment result be difficult to standardization.Another kind of then be the instrument being detected radio-frequency (RF) signal strength by, carry out objective metric data feedback, with assisting users adjustment antenna.But this instrument is the radiofrequency signal detected independently in space, then with measured signal strength, carry out the reception condition of corresponding artificial antenna.Not only actual receiving efficiency has drop with antenna, and is difficult to adjust antenna receive direction more accurately or put attitude.In addition, this instrument commonly use numerical value instruction receive the intensity of signal.Generally speaking, shown numerical value is the bigger the better; But excessively strong signal may produce signal overloading (Overload), and allows AV device present the problem of image distortion.Now, for the user of communication association area, related data be consulted, or seek the assistance of professional person, just can learn suitable number range.So carry out for by this instrument the process that assisting users carries out antenna installation, its reliability and convenience also have the place being worth promoting.
Summary of the invention
The purpose of this utility model is to provide a kind of signal that can directly be received by antenna to analyze, and to quantize and the mode of more intuition, indicating user confirms and adjustment antenna receiving efficiency, and improves the reliability of ornaments process and the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting of convenience.
The antenna equipment that the utility model has radio-frequency (RF) signal strength arrangement for detecting comprises an antenna, and a radio-frequency (RF) signal strength arrangement for detecting.
This antenna for receiving a radiofrequency signal, and exports the aerial signal that is relevant to this radiofrequency signal.
This radio-frequency (RF) signal strength arrangement for detecting comprises a detecting unit, an arithmetic element, and a display unit.This detecting unit has a band pass filter (BandPassFilter, BPF), an amplifier, and a radio frequency logarithmic detector.This band pass filter is electrically connected this antenna, and receives this aerial signal, and therefrom captures the signal in a special frequency band, to export one group of filtering signal being relevant to this capturing result to this amplifier; Make this amplifier adjust this filtering signal amplitude gain according to a yield value, and export a gain signal being relevant to this adjustment result to this radio frequency logarithmic detector.The power transfer of this gain signal is become a detecting circuit signal according to a conversion slope by this radio frequency logarithmic detector.This arithmetic element receives this detecting circuit signal, and carries out computing according to this yield value, this conversion slope, to export the strength signal that is relevant to this operation result.This display unit has multiple photophore that can produce different color light, and according to this strength signal, demonstrates the strength information of this radiofrequency signal with the photophore number of correspondence and coloured light thereof.
Preferably, this display unit also has the intensity display group of the coloured light grouping that many groups send according to described photophore.Photophore number wherein in one group of intensity display group is one, and is used to indicate this strength signal and is greater than a higher limit; Photophore number wherein in another group intensity display group is one, and is used to indicate this strength signal and is less than a limit value in the works.
Preferably, the intensity display group quantity of this display unit is three groups.Wherein there are at least two photophores in other group intensity display group, and are used to indicate this strength signal between this higher limit and this lower limit, and represent the relatively strong and weak of this strength signal with the photophore number of correspondence.
Preferably, this conversion slope is the ratio exporting detecting circuit and input signal power, and this ratio is between-22mV/dB to-66mV/dB.
Preferably, this radio frequency logarithmic detector comprises two resistance be in series.This conversion slope is relevant to the voltage between described resistance.
Preferably, this antenna equipment also comprises the switch of an electrical connection electric power source.This electric power source coordinates the conducting of this switch, to form a loop powered to this radio-frequency (RF) signal strength arrangement for detecting.
Preferably, this special frequency band is 470MHz to 700MHz.
Preferably, this amplifier is low-noise amplifier (LowNoiseAmplifier, LNA).
Preferably, described photophore is light-emitting diode.
The beneficial effects of the utility model are: the number manifested by described photophore and coloured light thereof, quantize the intensity of this antenna this radiofrequency signal received.Allow user intuitively can find out current the received signal strength signal intensity of this antenna, and then adjust the position of this antenna and put direction, to obtain the best reception configuration of this antenna, and the reliability increased in adjustment process and convenience.
Accompanying drawing explanation
Of the present utility model other feature and effect, clearly present in reference to graphic execution mode, wherein:
Fig. 1 is a schematic diagram, illustrates that the utility model has an embodiment of the antenna equipment of radio-frequency (RF) signal strength arrangement for detecting;
Fig. 2 is a signal flow graph, and the signal transmission flow process in this embodiment is described;
Fig. 3 is a circuit diagram, and the circuit unit configuration of a detecting unit in this embodiment is described.
Embodiment
Consult Fig. 1 and Fig. 2, the embodiment that the utility model has the antenna equipment of radio-frequency (RF) signal strength arrangement for detecting comprises an antenna 100, radio-frequency (RF) signal strength arrangement for detecting 200, switch 300, and an electric power source 400.
Consult Fig. 2, this antenna 100 for receiving a radiofrequency signal, and exports the aerial signal that is relevant to this radiofrequency signal.
Consult Fig. 2 and Fig. 3, this radio-frequency (RF) signal strength arrangement for detecting 200 comprises a detecting unit 210, arithmetic element 220, and a display unit 230.This detecting unit 210 has a band pass filter (BandPassFilter, BPF) 211, amplifier 212, and a radio frequency logarithmic detector 213.Wherein, this radio frequency logarithmic detector 213 comprises two resistance be in series 214.In addition, this display unit 230 has multiple photophore 231 that can produce different color light, and the intensity display group 232 (see Fig. 1) that many groups are divided into groups according to the coloured light that described photophore 231 sends.In the present embodiment, this amplifier 212 is low-noise amplifier (LowNoiseAmplifier, LNA); Described photophore 231 is light-emitting diode (Light-EmittingDiode, LED); And the quantity of described intensity display group 232 is three groups.
Consult Fig. 1 and Fig. 2, this switch 300 is electrically connected this electric power source 400, and makes this electric power source 400 can coordinate the conducting of this switch 300, to form a loop to the power supply of this radio-frequency (RF) signal strength arrangement for detecting 200.Be noted that in the circuit of Fig. 3, this electric power source 400 by this loop, and applies a DC power supply Vcc to this amplifier 212 and this radio frequency logarithmic detector 213 respectively.The voltage of described DC power supply Vcc might not be identical, but carry out dividing potential drop and supercharging according to its circuit requirements.
Whereby, consult Fig. 2, this band pass filter 211 is electrically connected this antenna 100, and receives this aerial signal, and therefrom captures the signal in a special frequency band, to export a filtering signal being relevant to this capturing result to this amplifier 212.In the present embodiment, this special frequency band is set as 470MHz to 700MHz, belongs to the frequency band of general digital television signal.Wherein, this band pass filter 211 circuit composition as shown in Figure 3, carries out filtering for using LC (inductance-electric capacity) circuit.Then, this amplifier 212 adjusts this filtering signal amplitude gain according to a yield value, and exports the gain signal that is relevant to this adjustment result.It is worth mentioning that, the performance requirement for this amplifier 212 has that noise figure (NoiseFactor) is low, yield value is high, and can carry out impedance matching (ImpedanceMatching) with its inlet circuit.Wherein, reduce noise figure and improve yield value the noise figure of integrated circuit can be made to reduce, namely can the lower signal of receiving intensity, improve the susceptibility of Received signal strength simultaneously.
Then, the power transfer of this gain signal is become a detecting circuit signal according to a conversion slope by this radio frequency logarithmic detector 213.In the present embodiment, this radio frequency logarithmic detector 213 is that employing detection integrated circuit carries out implementation.So according to the tables of data (Datasheet) of this detection integrated circuit, this conversion slope is not only negative value--22mV/dB, and has proportional relation with the voltage of its 4th pin position.Therefore, as shown in Figure 3, described resistance 214 is linked between the 4th pin position of this detection integrated circuit and the 5th pin position, and by adjusting the resistance value of described resistance 214 respectively, makes this conversion slope between-22mV/dB to-66mV/dB.In addition, this conversion slope is also related to the interpretation sensitivity of signal strength signal intensity, and the measuring range of signal power.Illustrate further, for this identical detecting circuit signal voltage constant interval, when the absolute value of conversion slope is less, the measuring range of this corresponding gain signal power is larger, but also reduces the changing sensitivity to this detecting circuit signal; On the contrary, then make measuring range less, changing sensitivity is higher.In practice, according to the receptivity of this antenna 100, this conversion slope can be adjusted.If receptivity is higher, represent that the changed power of this gain signal is obvious, then the absolute value of this conversion slope can be less; On the contrary, the absolute value of this conversion slope is larger.
It is worth mentioning that, because this aerial signal belongs to high-frequency signal, easily because the impedance (ElectricalImpedance) between circuit unit is not mated, and signal rebound phenomenon occurs.Therefore, for this band pass filter 211 in this detecting unit 210, this amplifier 212, and between the circuit such as this radio frequency logarithmic detector 213, all impedance matching must be carried out.So, as shown in Figure 3, disclose and comprise as resistance R, electric capacity C, and the linking relationship of most passive component such as inductance L and its resistance value, to reach the impedance matching between foregoing circuit.In addition, also can adopt discrete component, or be incorporated into the connection impedance that the modes such as electronic building brick in printed circuit board (PCB) (PrintedCircuitBoard, PCB) come between Circuit tuning.Meanwhile, in general design practice, the instrument programmings such as smith chart (SmithChart) also can be used to assist the calculating of the resistance value of this connection impedance.
Finally, this detecting circuit signal is received by this arithmetic element 220, and carry out computing according to this yield value, this conversion slope, to export a strength signal being relevant to this operation result to this display unit 230, and demonstrate the strength information of this radiofrequency signal accordingly.Be noted that this display unit 230 is with photophore 231 number of correspondence and coloured light thereof, the intensity carrying out current this radiofrequency signal received of this antenna 100 of indicating user is good and bad, but not with numerical value display, provides a kind of more intuitive display mode whereby.In the present embodiment, photophore 231 number wherein in one group of intensity display group 232 is one, and sends red light, and is used to refer to this strength signal and has been greater than a higher limit; Photophore 231 number wherein in another group intensity display group 232 is also one, and sends sodium yellow, and is used to refer to this strength signal and is less than a limit value in the works, or this strength signal is in the scope accepted reluctantly; Wherein there are three photophores 231 in other group intensity display group 232, but also can are more than two or three, and send green light, and with the relative power of this strength signal of the number of described photophore 231 instruction between this higher limit with this lower limit.For example, when this aerial signal is less than 37dB μ V, this strength signal makes the photophore 231 flashes yellow light that can send sodium yellow in this display unit 230, has the meaning of index signal undercapacity; If when 37dB μ V to 49dB μ V, above-mentioned photophore 231 continues to send sodium yellow, can accept reluctantly with reminding user signal strength signal intensity, better receiving position should be sought and adjust this antenna 100 attitude.Along with this strength signal improves, and when 49dB μ V to 80dB μ V, namely allow a photophore 231 that can send green light luminous at interval of 10dB μ V, to quantize the intensity of this antenna 100 this radiofrequency signal received.And carry out index signal intensity with more photophore 231, be because the signal strength signal intensity in this interval can allow AV device present image clearly.Only be subject to the impact of weather or signal transmission cable, cause signal strength signal intensity to change to some extent.Now, if only represent the signal strength signal intensity in this interval with a photophore 231, make the instruction of this display unit 230 insensitive by allowing.Finally, if when this aerial signal is greater than 80dB μ V, represent that signal has passed through by force, and unfavorable AV device receives, the photophore 231 that then can send red light is luminous, excessively strong with the signal strength signal intensity that this antenna 100 of indicating user receives, and should adjust its receiving position again or put attitude.
In sum, the number that the utility model manifests by described photophore 231 and coloured light thereof, quantize the intensity of this antenna 100 this radiofrequency signal received.Allow user can find out current the received signal strength signal intensity of this antenna 100 intuitively, and then adjust the position of this antenna 100 and put direction, to obtain the best reception configuration of this antenna 100, and the reliability increased in adjustment process and convenience, so really can the purpose of this utility model be reached.
As described above, be only embodiment of the present utility model, when can not limit the scope of the utility model enforcement with this, namely all simple equivalences done according to the utility model claims and description change and modify, and all still belong to scope of the present utility model.
Claims (9)
1. have an antenna equipment for radio-frequency (RF) signal strength arrangement for detecting, comprise an antenna, this antenna for receiving a radiofrequency signal, and exports the aerial signal that is relevant to this radiofrequency signal; It is characterized in that: this antenna equipment also comprises:
A radio-frequency (RF) signal strength arrangement for detecting, comprise a detecting unit, an arithmetic element, and a display unit, this detecting unit has a band pass filter, an amplifier, and a radio frequency logarithmic detector, this band pass filter is electrically connected this antenna, and receive this aerial signal, and the signal therefrom captured in a special frequency band, to export a filtering signal being relevant to this capturing result to this amplifier, this amplifier is made to adjust this filtering signal amplitude gain according to a yield value, and export one and be relevant to the gain signal of this adjustment result to this radio frequency logarithmic detector, the power transfer of this gain signal is become a detecting circuit signal according to a conversion slope by this radio frequency logarithmic detector, this arithmetic element receives this detecting circuit signal, and according to this yield value, this conversion slope carries out computing, to export the strength signal that is relevant to this operation result, this display unit has multiple photophore that can produce different color light, and according to this strength signal, the strength information of this radiofrequency signal is demonstrated with the photophore number of correspondence and coloured light thereof.
2. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 1, it is characterized in that: this display unit also has the intensity display group of the coloured light grouping that many groups send according to described photophore, photophore number wherein in one group of intensity display group is one, and be used to indicate this strength signal and be greater than a higher limit, photophore number wherein in another group intensity display group is one, and is used to indicate this strength signal and is less than a limit value in the works.
3. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 2, it is characterized in that: the intensity display group quantity of this display unit is three groups, wherein there are at least two photophores in other intensity display group, and this strength signal be used to indicate between this higher limit and this lower limit, and represent the relatively strong and weak of this strength signal with the photophore number of correspondence.
4. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 1, is characterized in that: this conversion slope is the ratio exporting detecting circuit and input signal power, and this ratio is between-22mV/dB to-66mV/dB.
5. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 1, is characterized in that: this radio frequency logarithmic detector comprises two resistance be in series, and this conversion slope is relevant to the voltage between described resistance.
6. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 1, it is characterized in that: this antenna equipment also comprises the switch of an electrical connection electric power source, this electric power source coordinates the conducting of this switch, to form the loop that an energy is powered to this radio-frequency (RF) signal strength arrangement for detecting.
7. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 1, is characterized in that: this special frequency band is 470MHz to 700MHz.
8. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 1, is characterized in that: this amplifier is low-noise amplifier.
9. the antenna equipment with radio-frequency (RF) signal strength arrangement for detecting according to claim 1, is characterized in that: described photophore is light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667633.8U CN204905447U (en) | 2015-08-31 | 2015-08-31 | Antenna equipment with radiofrequency signal intensity monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667633.8U CN204905447U (en) | 2015-08-31 | 2015-08-31 | Antenna equipment with radiofrequency signal intensity monitoring device |
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| CN204905447U true CN204905447U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520667633.8U Expired - Fee Related CN204905447U (en) | 2015-08-31 | 2015-08-31 | Antenna equipment with radiofrequency signal intensity monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572533A (en) * | 2019-09-19 | 2019-12-13 | 东莞市百傲电子科技有限公司 | Electrodeless adjustable active DTV digital television amplifier with display timing function |
| CN111404624A (en) * | 2019-01-02 | 2020-07-10 | 全一电子股份有限公司 | Wireless signal strength detecting device |
| CN114095679A (en) * | 2020-08-07 | 2022-02-25 | 扬智科技股份有限公司 | Video transmission circuit and signal delay compensation method thereof |
-
2015
- 2015-08-31 CN CN201520667633.8U patent/CN204905447U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404624A (en) * | 2019-01-02 | 2020-07-10 | 全一电子股份有限公司 | Wireless signal strength detecting device |
| CN110572533A (en) * | 2019-09-19 | 2019-12-13 | 东莞市百傲电子科技有限公司 | Electrodeless adjustable active DTV digital television amplifier with display timing function |
| WO2021051708A1 (en) * | 2019-09-19 | 2021-03-25 | 江西创新科技有限公司 | Stepless adjustable active digital television (dtv) amplifier capable of displaying and timing |
| CN110572533B (en) * | 2019-09-19 | 2024-02-27 | 江西创新科技有限公司 | Electrodeless adjustable band display time-consuming DTV digital television amplifier |
| CN114095679A (en) * | 2020-08-07 | 2022-02-25 | 扬智科技股份有限公司 | Video transmission circuit and signal delay compensation method thereof |
| CN114095679B (en) * | 2020-08-07 | 2023-10-03 | 扬智科技股份有限公司 | Video transmitting circuit and signal delay compensation method thereof |
| US11792358B2 (en) | 2020-08-07 | 2023-10-17 | Ali Corporation | Video transmitting circuit and signal delay compensation method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |