CN204517811U - There is the intercom of wideband frequency test function - Google Patents
There is the intercom of wideband frequency test function Download PDFInfo
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- CN204517811U CN204517811U CN201520289329.4U CN201520289329U CN204517811U CN 204517811 U CN204517811 U CN 204517811U CN 201520289329 U CN201520289329 U CN 201520289329U CN 204517811 U CN204517811 U CN 204517811U
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Abstract
A kind of intercom with wideband frequency test function, comprise interphone antenna, the first switching device be connected with this interphone antenna, second switch device, wideband frequency test module, receiver module, receiver, transmitter module, transmitter and central controller, the Enable Pin of receiver is connected to the output of described receiver module, the Enable Pin of receiver module is connected with the output of central processing unit with second switch device respectively, the Enable Pin of wideband frequency test module is connected on the first switching device, and its output is connected to described central controller.The utility model structure is simple, practical, by arranging wideband frequency test module, user closes second switch device and opens the first switching device and just can test the wireless signal of surrounding and scan, for the adjustment of measured signal, the eliminating of calibration and fault provides great convenience, and be conducive to user to choose best frequency range and communicate, ensure speech quality.
Description
Technical field
The utility model relates to a kind of intercom, refers in particular to a kind of intercom with wideband frequency test function.
Background technology
In modern communications, intercom is a kind of conventional instrument realizing short range wireless transmission communication.Because intercom just can carry out mobile communication effectively without the need to the support at terminal or switch station, ground, be therefore widely used in the occasions such as workshop, field work or rescue and relief work.
In the use procedure of intercom, often need searching signal and speech quality preferably frequency range, this measures the impedance operator of the wireless signal of surrounding and transmission characteristic with regard to needs, and wherein transmission characteristic comprises gain and attenuation characteristic, amplitude-frequency characteristic, phase-frequency characteristic etc.It is comparatively mechanical and random that existing intercom tunes mode, generally first select after frequency range carries out speaking test, switch again if speech quality is poor, this mode easily varies with each individual, and the call frequency range often selecting less than the best, thus be necessary to carry out frequency test to surrounding environment in advance, and existing intercom does not have this function.
Utility model content
The utility model provides a kind of intercom with wideband frequency test function, and its main purpose is to overcome the defect that existing intercom does not have frequency test function.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of intercom with wideband frequency test function, comprise interphone antenna, the first switching device be connected with this interphone antenna, second switch device, wideband frequency test module, receiver module, receiver, transmitter module, transmitter and central controller, the Enable Pin of described receiver is connected to the output of described receiver module, the Enable Pin of described receiver module is connected with the output of described central processing unit with second switch device respectively, the Enable Pin of described transmitter module is connected with the output of central controller with transmitter respectively, the output of described second switch device is also connected to the Enable Pin of described first switching device, the output of described transmitter module is connected to the Enable Pin of described first switching device, the Enable Pin of described wideband frequency test module is connected on described first switching device, and its output is connected to described central controller, the Enable Pin of described receiver is connected to the output of described receiver module.
Further, also comprise a display module, the Enable Pin of this display module is connected to the output of described central controller.
Further, described first switching device is a bidirectional switch.
Further, described first switching device comprises one first switch and one the 3rd switch, the output of described transmitter module and second switch device is connected to described first switch, the Enable Pin of described wideband frequency test module is connected to described 3rd switch, and described first switch is all connected with described interphone antenna with the 3rd switch.
Further, described interphone antenna is directional antenna.
Further, also comprise a location register, the Enable Pin of this location register is connected to the output of described central controller.
Further, described wideband frequency test module comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, inductance I1, diode D1, amplifier and phase-locked loop, is provided with counter in described phase-locked loop;
The negative pole of described diode is connected with described interphone antenna, and positive pole one tunnel of described diode is connected to one end of resistance R1, and another road is connected to one end of electric capacity C1;
The other end one tunnel of described electric capacity C1 connects one end of described resistance R7, and another road is connected to one end of resistance R5;
The other end of described resistance R1 is connected to one end of resistance R2;
The other end one tunnel of described resistance R2 is connected to one end of described inductance I1, and another road is connected to one end of resistance R3;
The other end one tunnel of described resistance R3 is connected to one end of resistance R4, and another road is connected to one end of electric capacity C4;
The other end of described resistance R4 is connected to described central controller;
The other end one tunnel of described resistance R7 is connected to one end of resistance R6, and another road is connected to one end of electric capacity C2, and the other end of this electric capacity C2 is connected to the Enable Pin of described amplifier;
Output Fen You tri-tunnel of described amplifier, the first via is connected to the other end of described inductance I1, and the second tunnel connects the one end with described electric capacity C3, the 3rd tunnel ground connection;
The other end one tunnel of described electric capacity C3 is connected to the described counter on described phase-locked loop, and another road is connected to one end of described resistance R8;
Described phase-locked loop is connected with described central controller;
The other end of the other end of described electric capacity C4, the other end of resistance R5, resistance R6 and the equal ground connection of the other end of resistance R8.
Compared to the prior art, the beneficial effect that the utility model produces is:
1, the utility model structure is simple, practical, by arranging wideband frequency test module, user closes second switch device and opens the first switching device and just can test the wireless signal of surrounding and scan, for the adjustment of measured signal, the eliminating of calibration and fault provides great convenience, and be conducive to user to choose best frequency range and communicate, ensure speech quality.
2, in the utility model, by using the circuit arrangement of existing intercom, introduce resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, inductance I1, diode D1, the circuit elements such as amplifier, and be arranged to wideband frequency test circuit, make intercom can simultaneously with test radio wave frequency and the function calculating this frequency intensity, the wireless signal of user to surrounding can be convenient to like this test and scan, for the adjustment of measured signal, the eliminating of calibration and fault provides great convenience, and be conducive to user to choose best frequency range and communicate, ensure speech quality.
3, in the utility model, interphone antenna can be arranged to directional antenna by user, the position that user finds interference signal can be convenient to like this, and the signal strength signal intensity according to this interference signal frequency is strengthened and weakens information, moved by hand transceiver, find out the accurate location of interference signal, thus using intercom as a kind of satellite TV's signal disturbing detecting instrument that can manually hold, the one-object-many-purposes of intercom can be realized.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of intercom in embodiment one.
In Fig. 2 embodiment one, intercom carries out the theory diagram of frequency scanning and test.
In Fig. 3 embodiment one, intercom carries out the theory diagram of collecting mail.
In Fig. 4 embodiment one, intercom carries out the theory diagram transmitted.
The wideband frequency test circuit diagram of intercom in Fig. 5 embodiment one.
Fig. 6 is the schematic block circuit diagram of intercom in embodiment two.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.
Embodiment one
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.A kind of intercom with wideband frequency test function, comprise interphone antenna 11, the first switching device 1 be connected with this interphone antenna 11, second switch device 2, wideband frequency test module 3, receiver module 4, receiver 5, transmitter module 6, transmitter 7, display module 8, location register 9 and central controller 10, the Enable Pin of described receiver 5 is connected to the output of described receiver module 4, the Enable Pin of described receiver module 4 is connected with the output of described central processing unit with second switch device 2 respectively, the Enable Pin of described transmitter module 6 is connected with the output of transmitter 7 with central controller 10 respectively, the output of described second switch device 2 is also connected to the Enable Pin of described first switching device 1, the output of described transmitter module 6 be connected to described first switching device 1 Enable Pin, the Enable Pin of described wideband frequency test module 3 is connected on described first switching device 1, and its output is connected to described central controller 10, the Enable Pin of described receiver 5 is connected to the output of described receiver module 4.The Enable Pin of described display module 8 is connected to the output of described central controller 10.The Enable Pin of described location register 9 is connected to the output of described central controller 10.By arranging wideband frequency test module 3, user closes second switch device 2 and opens the first switching device 1 and just can test the wireless signal of surrounding and scan, for the adjustment of measured signal, the eliminating of calibration and fault provides great convenience, and be conducive to user to choose best frequency range and communicate, ensure speech quality.Above-mentioned intercom is owing to having fast high-sensitive wideband Frequency tester function, possess the voice communication without line length distance, thus simultaneously can carry out frequency test to the radio magnetic wave in 100K ~ 2.8GHz frequency and the signal strength signal intensity of frequency after display test and this frequency wireless electromagnetic wave.
With reference to Fig. 1.In the present embodiment, above-mentioned first switching device 1 is a bidirectional switch, and it can switch transmitting between frequency scanning two functions.Described interphone antenna 11 is directional antenna, the position that user finds interference signal can be convenient to by arranging like this, and the signal strength signal intensity according to this interference signal frequency is strengthened and weakens information, moved by hand transceiver, find out the accurate location of interference signal, thus using intercom as a kind of satellite TV's signal disturbing detecting instrument that can manually hold, the one-object-many-purposes of intercom can be realized.
With reference to Fig. 5.Above wideband frequency test module 3, interphone antenna 11 and central controller 10 can form a kind of wideband frequency test circuit of intercom jointly, it comprises interphone antenna 11, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, inductance I1, diode D1, amplifier, central controller 10 and phase-locked loop 12, is provided with counter 13 in described phase-locked loop 12; The negative pole of described diode D1 is connected with described interphone antenna 11, and positive pole one tunnel of described diode D1 is connected to one end of resistance R1, and another road is connected to one end of electric capacity C1; The other end one tunnel of described electric capacity C1 connects one end of described resistance R7, and another road is connected to one end of resistance R5; The other end of described resistance R1 is connected to one end of resistance R2; The other end one tunnel of described resistance R2 is connected to one end of described inductance I1, and another road is connected to one end of resistance R3; The other end one tunnel of described resistance R3 is connected to one end of resistance R4, and another road is connected to one end of electric capacity C4; The other end of described resistance R4 is connected to described central controller 10; The other end one tunnel of described resistance R7 is connected to one end of resistance R6, and another road is connected to one end of electric capacity C2, and the other end of this electric capacity C2 is connected to the Enable Pin of described amplifier; Output Fen You tri-tunnel of described amplifier, the first via is connected to the other end of described inductance I1, and the second tunnel connects the one end with described electric capacity C3, the 3rd tunnel ground connection; The other end one tunnel of described electric capacity C3 is connected to the described counter 13 on described phase-locked loop 12, and another road is connected to one end of described resistance R8; Described phase-locked loop 12 is connected with described central controller 10; The other end of the other end of described electric capacity C4, the other end of resistance R5, resistance R6 and the equal ground connection of the other end of resistance R8.
With reference to Fig. 5.The control method of foregoing circuit, comprise the following steps: a, interphone antenna 11 obtains radio wave around, central controller controls resistance R1 and resistance R2 powers to diode D1, radio wave is just by after diode D1, through electric capacity C1, resistance R5, resistance R7, the effect of resistance R6 and electric capacity C2 is adjusted to can sine wave in amplifier input range, this sine wave is after amplifier, change into square wave, afterwards through the effect of electric capacity C3 and resistance R8, after restricting signal amount, square wave is outputted on the counter in phase-locked loop, counter is by the number of 1 numerical value in square wave in the unit of account time or the number of 0 numerical value, this number just may correspond to the frequency values of radio wave.
With reference to Fig. 5.Meanwhile, central controller is by controlling the power supply of inductance I1, resistance R3, resistance R4 and electric capacity C4, carry out the multiplication factor of control amplifier offset of sinusoidal ripple, this multiplication factor by little to increasing progressively greatly, described counter is also by can't detect square-wave signal to detecting that square-wave signal changes, and when described counter just can detect square-wave signal, described multiplication factor is an amplification threshold value, calculate according to this amplification threshold value passing ratio, the signal strength signal intensity of corresponding radio wave frequency value can be obtained.By using the circuit arrangement of existing intercom, introduce resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, inductance I1, diode D1, the circuit elements such as amplifier, and be arranged to wideband frequency test circuit, make intercom can simultaneously with test radio wave frequency and the function calculating this frequency intensity, the wireless signal of user to surrounding can be convenient to like this test and scan, for the adjustment of measured signal, the eliminating of calibration and fault provides great convenience, and be conducive to user to choose best frequency range and communicate, ensure speech quality.
Embodiment two
The present embodiment is substantially identical with described example one, its difference is, described first switching device 1 comprises one first switch 15 and one the 3rd switch 16, the output of described second switch device 2 and transmitter module 6 is connected to described first switch 15, the Enable Pin of described wideband frequency test module 3 is connected to described 3rd switch 16, and described first switch 15 is all connected with described interphone antenna 11 with the 3rd switch 16.
Embodiment three
A communication system for intercom, comprises at least one portable intercom, a plurality of trunk desk and fixed intercom being installed on building top; Described portable intercom is the intercom mentioned in embodiment one or two, described fixed intercom is equally also the intercom mentioned in embodiment one or two, just in the present embodiment for the ease of application, the interphone antenna of portable intercom and fixed intercom all adopts common interphone antenna, instead of directional antenna.
In use, the first step, the radio signal frequency that near the described wideband frequency test module 3 of portable intercom can gather, a plurality of trunk desk sends, and the signal strength signal intensity corresponding with each radio signal frequency can be measured.
Second step, the radio signal frequency that portable intercom is obtained by transmitter module on it and signal strength signal intensity S are sent in the receiver module 4 of fixed intercom.
3rd step, the central controller 10 of fixed intercom, according to these radio signal frequency and signal strength signal intensity S, utilizes the location register 9 on it to inquire about, and finds out two trunk desks of the distance moving intercom corresponding to these radio signal frequency.
4th step, and fixed intercom is measured these two trunk desks by the described wideband frequency test module 3 on it and is sent signal strength signal intensity S ' corresponding to this radio signal frequency.
5th step, fixed intercom carries out computing by the ratio of the signal strength signal intensity S that the signal strength signal intensity S ' obtained obtains with portable intercom, the proportional positions of portable intercom and above two trunk desks is first calculated according to this ratio, calculate the physical location at portable intercom place at cooperation position register 9, and by the form that longitude and latitude represents, this actual position information is sent on the receiver module 4 of portable intercom by the transmitter module 6 on it.
In the present embodiment, because the signal strength signal intensity S that obtains and signal strength signal intensity S ' is can real-time update, thus the location, position of portable intercom just can the impact of lower elimination intermediate obstacles, or positional information accurately in real time.
Above are only embodiment of the present utility model, but design concept of the present utility model is not limited thereto, all changes utilizing this design the utility model to be carried out to unsubstantiality, all should belong to the behavior of invading the utility model protection range.
Claims (7)
1. one kind has the intercom of wideband frequency test function, it is characterized in that: comprise interphone antenna, the first switching device be connected with this interphone antenna, second switch device, wideband frequency test module, receiver module, receiver, transmitter module, transmitter and central controller, the Enable Pin of described receiver is connected to the output of described receiver module, the Enable Pin of described receiver module is connected with the output of described central processing unit with second switch device respectively, the Enable Pin of described transmitter module is connected with the output of central controller with transmitter respectively, the output of described second switch device is also connected to the Enable Pin of described first switching device, the output of described transmitter module is connected to the Enable Pin of described first switching device, the Enable Pin of described wideband frequency test module is connected on described first switching device, and its output is connected to described central controller, the Enable Pin of described receiver is connected to the output of described receiver module.
2. a kind of intercom with wideband frequency test function as claimed in claim 1, it is characterized in that: also comprise a display module, the Enable Pin of this display module is connected to the output of described central controller.
3. a kind of intercom with wideband frequency test function as claimed in claim 2, is characterized in that: described first switching device is a bidirectional switch.
4. a kind of intercom with wideband frequency test function as claimed in claim 2, it is characterized in that: described first switching device comprises one first switch and one the 3rd switch, the output of described transmitter module and second switch device is connected to described first switch, the Enable Pin of described wideband frequency test module is connected to described 3rd switch, and described first switch is all connected with described interphone antenna with the 3rd switch.
5. a kind of intercom with wideband frequency test function as claimed in claim 4, is characterized in that: described interphone antenna is directional antenna.
6. a kind of intercom with wideband frequency test function as claimed in claim 5, it is characterized in that: also comprise a location register, the Enable Pin of this location register is connected to the output of described central controller.
7. as a kind of intercom with wideband frequency test function as described in any one in claim 1-6, it is characterized in that: described wideband frequency test module comprises resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, inductance I1, diode D1, amplifier and phase-locked loop, is provided with counter in described phase-locked loop;
The negative pole of described diode is connected with described interphone antenna, and positive pole one tunnel of described diode is connected to one end of resistance R1, and another road is connected to one end of electric capacity C1;
The other end one tunnel of described electric capacity C1 connects one end of described resistance R7, and another road is connected to one end of resistance R5;
The other end of described resistance R1 is connected to one end of resistance R2;
The other end one tunnel of described resistance R2 is connected to one end of described inductance I1, and another road is connected to one end of resistance R3;
The other end one tunnel of described resistance R3 is connected to one end of resistance R4, and another road is connected to one end of electric capacity C4;
The other end of described resistance R4 is connected to described central controller;
The other end one tunnel of described resistance R7 is connected to one end of resistance R6, and another road is connected to one end of electric capacity C2, and the other end of this electric capacity C2 is connected to the Enable Pin of described amplifier;
Output Fen You tri-tunnel of described amplifier, the first via is connected to the other end of described inductance I1, and the second tunnel connects the one end with described electric capacity C3, the 3rd tunnel ground connection;
The other end one tunnel of described electric capacity C3 is connected to the described counter on described phase-locked loop, and another road is connected to one end of described resistance R8;
Described phase-locked loop is connected with described central controller;
The other end of the other end of described electric capacity C4, the other end of resistance R5, resistance R6 and the equal ground connection of the other end of resistance R8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289329.4U CN204517811U (en) | 2015-05-07 | 2015-05-07 | There is the intercom of wideband frequency test function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520289329.4U CN204517811U (en) | 2015-05-07 | 2015-05-07 | There is the intercom of wideband frequency test function |
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| CN204517811U true CN204517811U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520289329.4U Withdrawn - After Issue CN204517811U (en) | 2015-05-07 | 2015-05-07 | There is the intercom of wideband frequency test function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779968A (en) * | 2015-05-07 | 2015-07-15 | 泉州欧讯电子有限公司 | Interphone with broadband frequency testing function and communication system thereof |
| CN105976592A (en) * | 2016-07-11 | 2016-09-28 | 苏州南江乐博机器人有限公司 | Communication device and control method of soccer robot |
-
2015
- 2015-05-07 CN CN201520289329.4U patent/CN204517811U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779968A (en) * | 2015-05-07 | 2015-07-15 | 泉州欧讯电子有限公司 | Interphone with broadband frequency testing function and communication system thereof |
| CN105976592A (en) * | 2016-07-11 | 2016-09-28 | 苏州南江乐博机器人有限公司 | Communication device and control method of soccer robot |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170801 |