CN208806797U - A kind of novel hand-held machine - Google Patents
A kind of novel hand-held machine Download PDFInfo
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- CN208806797U CN208806797U CN201821665650.8U CN201821665650U CN208806797U CN 208806797 U CN208806797 U CN 208806797U CN 201821665650 U CN201821665650 U CN 201821665650U CN 208806797 U CN208806797 U CN 208806797U
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Abstract
The utility model provides a kind of novel hand-held machine, increases frequency point detection module in existing hand-held set, frequency point detection module be broadly divided into before to, reversed and detection link.The modulated signal of forward link CPU output is amplified by double operational, is mixed with PLL local signal, by drive amplification, is entered in power amplifier as input signal, then using filter and coupler, finally launched from antenna；For reverse link from the received radiofrequency signal of antenna, by coupler with from it is preceding to local oscillation signal carry out frequency mixer demodulation, the signal after demodulation amplifies filtering, gives comparator and be compared, and the digital signal exported is handled by CPU.For detecting link, the signal entering signal intensity and frequency detection circuit of coupler output detect the intensity and frequency point that receive signal.The utility model will test link and be integrated in active link, the increased working performance that cost is relatively low while not influencing primary link.
Description
Technical field
The utility model belongs to hand-held set technical field, more particularly, to a kind of novel hand-held machine.
Background technique
Existing hand-held set is all work in artificially selected fixed channel, or work is in selected frequency hopping channel, when depositing
In environmental disturbances, there are the personnel of operating experience to need to continuously attempt to which channel effect good, with the signal that avoids interference, and for
There is no the personnel of operating experience will be helpless, influences using effect.
Summary of the invention
In view of this, the utility model is directed to a kind of novel hand-held machine, independently to detect environmental disturbances.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of novel hand-held machine, including hand-held set ontology, the hand-held set body surface are equipped with frequency point and detect refresh button,
The hand-held set body interior is equipped with frequency point detection module, and the frequency point detection module includes forward link, reverse link and inspection
Surveyor's chain road,
Wherein, forward link includes CPU, and CPU exports the input terminal of modulated signal connection double operational, the output end of double operational
The output end of the first frequency mixer is connected, the output end of the first frequency mixer connects the input terminal of SAW filter, SAW filter
Output end connects the input terminal of driving amplifier, the input terminal of the output end connection temperature drift attenuator circuit of driving amplifier, temperature drift
The input terminal of the output end connection power amplifier of attenuator circuit, the input terminal of the output end connection coupler of power amplifier, the output of coupler
The input terminal of end connection harmonic filter, the output end of harmonic filter connect antenna；
Reverse link includes antenna, and antenna connects the reverse input end of harmonic filter, the reversed output of harmonic filter
End connection coupler reverse input end, coupler inverse output terminal connection coupled capacitor input terminal, coupled capacitor it is defeated
Enter end connection π to decline the input terminal of circuit, the decline output end of circuit of π connects the input terminal of the second frequency mixer, the second frequency mixer it is defeated
Outlet connects the input terminal of first stage amplifier, and the output end of first stage amplifier connects the input terminal of the two poles of the earth amplifilter, the two poles of the earth
The input terminal of the output end connection comparator of amplifilter, the output end of comparator connect CPU；
Detection link includes coupler, the input terminal of the inverse output terminal connection electric bridge of coupler, the output end point of electric bridge
Other connection signal intensity detection circuit and frequency detection circuit.
Further, the temperature drift attenuator circuit is for reducing influence of the temperature change to link change.
Further, the π declines circuit for adjusting range of receiving.
Compared with the existing technology, a kind of novel hand-held machine described in the utility model has the advantage that
(1) signal a part that the utility model is received from antenna does power monitoring and frequency inspection by coupler
It surveys, main part carries out normal signal demodulation by forward link, to realize signal in normal receives link
Frequency and power monitoring do not increase link cost, and can work at the same time；
(2) the utility model will test link and be integrated in active link, and increased cost is relatively low while not influencing main chain
The working performance on road.
(3) due to can detecte the frequency point and intensity of interference signal in environment Mid Frequency, hand-held set can be selected actively
Other channel frequency points work, to actively avoid interference.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is a kind of novel hand-held machine structural schematic diagram described in the utility model embodiment；
Fig. 2 is schematic illustration described in the utility model embodiment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs. 1-2, the utility model mainly increases frequency point detection module in existing hand-held set, passes through the mould
Block hand-held set can independently detect environmental disturbances, the signal including other systems and Vehicle Electronic Identification System other equipment,
Its intermediate-frequeney point detection module be broadly divided into before to, reversed and three links of detection.For the modulated signal of forward link CPU output
It is amplified by double operational, is mixed with PLL local signal, by drive amplification, entered in power amplifier as input signal, so
Afterwards using filter and coupler, temperature drift attenuator circuit is wherein increased in link, it is therefore an objective to reduce temperature change to link
The influence of variation, finally launches from antenna；For reverse link from the received radiofrequency signal of antenna, by coupler and come
Frequency mixer demodulation is carried out from the PLL local signal of forward direction, the signal after demodulation amplifies filtering, gives comparator and compared
Compared with the digital signal of output is handled by CPU.It wherein increases π in a link to decline circuit, to adjust range of receiving.
For detecting link, the signal entering signal intensity and frequency detection circuit of coupler output, to the intensity and frequency for receiving signal
Point is detected.The advantages of designing in this way is that can will test link is integrated in active link, and increased that cost is relatively low is same
When do not influence the working performance of primary link.
The utility model reduces the influence of environmental disturbances, while reducing the operation difficulty of operator.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (3)
1. a kind of novel hand-held machine, including hand-held set ontology, it is characterised in that: the hand-held set body surface is detected equipped with frequency point
Refresh button, the hand-held set body interior are equipped with frequency point detection module, and the frequency point detection module includes forward link, reversed
Link and detection link,
Wherein, forward link includes CPU, and CPU exports the input terminal of modulated signal connection double operational, the output end connection of double operational
The output end of first frequency mixer, the input terminal of the output end connection SAW filter of the first frequency mixer, the output of SAW filter
The input terminal of end connection driving amplifier, the input terminal of the output end connection temperature drift attenuator circuit of driving amplifier, temperature drift decaying
The input terminal of the output end connection power amplifier of circuit, the input terminal of the output end connection coupler of power amplifier, the output end of coupler connect
The input terminal of harmonic filter is connect, the output end of harmonic filter connects antenna；
Reverse link includes antenna, and antenna connects the reverse input end of harmonic filter, and the inverse output terminal of harmonic filter connects
Connect the reverse input end of coupler, the input terminal of the inverse output terminal connection coupled capacitor of coupler, the input terminal of coupled capacitor
Connection π declines the input terminal of circuit, and the decline output end of circuit of π connects the input terminal of the second frequency mixer, the output end of the second frequency mixer
The input terminal of first stage amplifier is connected, the output end of first stage amplifier connects the input terminal of the two poles of the earth amplifilter, the two poles of the earth amplification
The input terminal of the output end connection comparator of filter, the output end of comparator connect CPU；
Detection link includes coupler, and the inverse output terminal of coupler connects the input terminal of electric bridge, and the output end of electric bridge connects respectively
Connect signal strength detection circuit and frequency detection circuit.
2. a kind of novel hand-held machine according to claim 1, it is characterised in that: the temperature drift attenuator circuit is for reducing temperature
Influence of the degree variation to link change.
3. a kind of novel hand-held machine according to claim 1, it is characterised in that: the π decline circuit for adjust reception model
It encloses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821665650.8U CN208806797U (en) | 2018-10-15 | 2018-10-15 | A kind of novel hand-held machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821665650.8U CN208806797U (en) | 2018-10-15 | 2018-10-15 | A kind of novel hand-held machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208806797U true CN208806797U (en) | 2019-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821665650.8U Active CN208806797U (en) | 2018-10-15 | 2018-10-15 | A kind of novel hand-held machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN208806797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217536A (en) * | 2020-11-30 | 2021-01-12 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
-
2018
- 2018-10-15 CN CN201821665650.8U patent/CN208806797U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217536A (en) * | 2020-11-30 | 2021-01-12 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
| CN112217536B (en) * | 2020-11-30 | 2024-03-08 | 成都泰格微电子研究所有限责任公司 | Radio frequency front end of satellite ground station and self-checking method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 401, building 12, east area, airport business park, No. 80, Huanhe North Road, free trade zone (Airport Economic Zone), Binhai New Area, Tianjin 300000 Patentee after: Gaoxing Zhilian Technology Co.,Ltd. Address before: 300308, Zhongxing Industrial base, 2 East seven, Airport Economic Zone, Tianjin Binhai New Area Patentee before: ZTE INTELLIGENT IOT TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 401, building 12, East Airport Business Park, 80 Huanhe North Road, Tianjin Binhai New Area pilot free trade zone (Airport Economic Zone) Patentee after: Zte Intelligent Iot Technology Co.,Ltd. Address before: Room 401, building 12, East Airport Business Park, 80 Huanhe North Road, Tianjin Binhai New Area pilot free trade zone (Airport Economic Zone) Patentee before: Gaoxing Zhilian Technology Co.,Ltd. |