CN207571200U - A kind of portable antenna-feeder system tester - Google Patents
A kind of portable antenna-feeder system tester Download PDFInfo
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- CN207571200U CN207571200U CN201721801310.9U CN201721801310U CN207571200U CN 207571200 U CN207571200 U CN 207571200U CN 201721801310 U CN201721801310 U CN 201721801310U CN 207571200 U CN207571200 U CN 207571200U
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Abstract
The utility model is a kind of portable antenna-feeder system tester, is provided a method and means for single-ended quick detection antenna feeder state.By probe, host and its between connecting cable form.Wherein, probe inputs host for sampling and detection, detection result by connecting cable, and state instruction driving is converted to by signal processing.If the power that antenna receives is more than instrument detection threshold, instrument provides acousto-optic instruction, and mark state of antenna feed system is normal, otherwise abnormal.The instrument is adaptable.It is demarcated by input threshold, can detect different type state of antenna feed system.Calibration is simple.Without instrument, normally similar antenna-feeder system makees benchmark to a set of state.It is easy to use.Coupling sampling, without disassembling antenna feeder to be measured.
Description
Technical field
The utility model is mainly used for the state of antenna feed system detection that communicates.The routine inspection of antenna-feeder system is safeguarded more suitable
With.
Background technology
Mobile communication system is different from general communication system, awaits orders as normality.Ensure that system mode is good, it is necessary to carry out
Regular Inspection and maintenance and maintenance.In a communications system, most of equipment have self-diagnostic function, and antenna-feeder system does not have then
Have, so, single-ended complete communication system state confirmation can not also be realized because of antenna-feeder system.Led to mostly using near field now
Letter pattern determines antenna feeder state, but the most strange land in both ends to communicate, with staying, cooperation has inconvenience more.Such tester, for solution
Certainly the problem provides a method and means.
Utility model content
The technical problem to be solved by the utility model is to provide a detections for antenna-feeder system General Maintenance inspection
Instrument.
The technical solution adopted in the utility model is：
A kind of portable antenna-feeder system tester, including wave detector and host；Detection circuit is equipped in host, wave detector
Input terminal connects antenna, and the output terminal of wave detector is connected by coaxial cable with the detection circuit in host；The detection electricity
Road includes operational amplification circuit, switch driving circuit, condition indication circuit and power circuit；The input terminal of operational amplification circuit with
Wave detector is connected, and the output terminal of operational amplification circuit is connected with the input terminal of switch driving circuit, the output of switch driving circuit
End is connected with the input terminal of condition indication circuit, and power circuit provides operating voltage for each operational module.
Wherein, the operational amplification circuit includes resistance R1, R3 and R4, operational amplifier N1 and variable resistance R2；Institute
The one end for stating resistance R1 is connected with the output terminal of wave detector V1, the other end of resistance R1 and the anti-phase input pipe of operational amplifier N1
Foot is connected；One end ground connection of resistance R3, the other end are connected with the non-inverting input pin of operational amplifier N1；The one of variable resistance R2
End is connected with the anti-phase input pin of operational amplifier, and the other end is connected with the output pin of operational amplifier；The one of resistance R4
End is connected with the output pin of operational amplifier N1, and the other end is connected with switch driving circuit.
Wherein, the switch driving circuit includes triode V2 and relay K2；Base stage b and the operation of triode V2 is put
Big circuit output end is connected, the repellel e ground connection of triode V2, one end of relay K2 input circuits and the collection of triode V2
With being connected, the other end of relay K2 input circuits is connected electrode c with power circuit, the output loop common end of relay K2 with
Power circuit is connected, and the output loop normally open end of relay K2 is connected with condition indication circuit.
Wherein, the condition indication circuit includes light emitting diode V3 and electric bell G1；Light emitting diode V3 and electric bell G1
To be connected in parallel, wherein one end is connect with relay K2 output loops normally open end, and the other end is connect with power circuit.
The utility model advantage is：
It is 1. adaptable.It is demarcated by input threshold, can detect different type state of antenna feed system.
2. calibration is simple.Without instrument, normally similar antenna-feeder system makees benchmark to a set of state.
It is 3. easy to use.Coupling sampling, without disassembling antenna feeder to be measured.
Description of the drawings
Fig. 1 is the utility model pictorial diagram；
Fig. 2 is the utility model circuit diagram.
Specific embodiment
The utility model is further explained in conjunction with attached Fig. 1 and 2.
Pictorial diagram is as shown in Figure 1, including probe and host；Detection circuit is equipped in host, host is inputted equipped with signal
Mouth, switch, state instruction and power supply instruction and electric bell.The input terminal of probe is connected with antenna, and output terminal passes through coaxial electrical
Cable passes through the signal input port of host to be connected with the detection circuit in host；Probe used is wave detector V1.
The detection circuit includes operational amplification circuit, switch driving circuit, condition indication circuit and power circuit；Antenna
The transmission power of antenna-feeder system to be measured is received, which is converted to detection level by wave detector, and inputs operational amplification circuit；Fortune
Calculating amplifying circuit will export after detection level amplification to switch driving circuit；If the performance number that antenna receives is detected more than instrument
Thresholding, then switch driving circuit startup, condition indication circuit current supply circuit are closed, and acousto-optic sends out instruction, indicates antenna feeder system to be measured
System state is normal, otherwise, indicates that state of antenna feed system to be measured is abnormal.
Operational amplification circuit can control the amplification factor of detection level, and the variable resistance R2 inside set is used for instrument detection threshold
Calibration, R2 resistance values improve, and instrument detection threshold reduces, otherwise instrument detection threshold improves.
The circuit diagram of detection circuit is as shown in Figure 2：
The output terminal of the wave detector V1 is connected with one end of resistance R1；The other end and operational amplifier of resistance R1
The inverting input of N1 is connected, and one end ground connection of resistance R3, the other end is connected with the normal phase input end of operational amplifier N1；It is variable
One end of resistance R2 is connected with the inverting input of operational amplifier N1, and the other end is connected with the output terminal of operational amplifier N1,
The grounding ports ground connection of operational amplifier N1, power port connect DC5V power supplys；One end of resistance R4 is defeated with operational amplifier N1's
Outlet is connected, and the other end is connected with the base stage b of triode V2, the repellel e ground connection of triode V2, collector c and relay
One end of input circuit is connected, and the other end of relay input circuit is connected with connecing DC12V power supplys；The output of relay is public
End is connected with switch K1 output terminals, and the output normally open end of relay is connected with light emitting diode V3 one end and electric bell G1 one end
It connects；The light emitting diode V3 other ends and the electric bell G1 other ends are connected with AC220V zero curve input terminals N, AC220V firewire input terminals L
It is connected with switch K1 input terminals, Switching Power Supply N2 input AC220V output DC12V, regulated power supply N3 input DC12V outputs DC5V.
The input terminal of switch K1 is connect with AC220V firewires, two input terminals of commodity power supply N2 respectively with switch K1 output terminals and
AC220V zero curves connect；Power supply instruction V4 cathode, regulated power supply N3 ground pins are connect simultaneously with commodity power supply N2 negative pole of output end
Ground connection；Power supply instruction V4 anodes, regulated power supply N3 input pins connect with commodity power supply N2 output head anodes and access switch and drive
Dynamic circuit；Regulated power supply N3 output head anodes are connect with operational amplifier N1 power interface+5V pins.
The operation principle of this instrument：
Antenna A receives antenna-feeder system transmission power to be measured, which is converted to detection level through resistance R1 by wave detector V1
Output is to operational amplifier N1, and amplified detection level inputs triode V2 base stage b through resistance R4, if wave detector V1 is inputted
Power is more than instrument detection threshold, then base stage b input voltages are higher than triode ON voltage, triode V2 conductings, relay K2
It is attracted, light emitting diode V3 and electric bell G1 are for circuit closed, and V3 lamps are bright, and it is normal to indicate antenna-feeder system to be measured for G1 bell rings；Conversely,
Then represent that antenna-feeder system to be measured is abnormal.Variable resistance R2 is used to adjust the amplification factor of operational amplifier N1, and amplification factor increases
Add, instrument detection threshold reduces, conversely, instrument detection threshold increases.Change the antenna feeder system that detection threshold is suitable for different capacity
System.
This instrument operation instruction：
1st, it demarcates.
Instrument initial default antenna feeder type to be measured be surface antenna antenna-feeder system, transmission power 40W.As it is non-this, needed before use
Calibration.
Demarcating steps are as follows：
1) determine that the normal same type antenna-feeder system of a set of state makees benchmark.
2) host is placed in shielding space, with radiation protection.Probe antenna is placed in appropriate location, surface antenna is close to feed mouth
It places, other types antenna is placed nearby.
3) transmission power is determined.As system output power is adjustable, it is proposed that selection 40W calibration, user can also make by oneself.Such as output
Power is fixed, then the system of being subject to exports.
4) detection threshold is adjusted.Above-mentioned work is ready, and instrument can be switched on power-up, if bell ring lamp is bright, then inverse rotation adjustable electric
Hinder knob, until the lamp bell that do not work is not rung, then again conrotatory knob until bell to ring lamp weight again bright.If the lamp bell that do not work is not rung, then
Conrotatory adjustable resistance knob, until the bright bell ring of lamp.
So far, calibration is completed, instrument can detect and benchmark same type antenna-feeder system.
2nd, it detects.
Probe antenna is placed according to calibration methods as possible, position of host machine is unlimited, and then instrument powers up.It is set by calibration value
Put the transmission power of antenna-feeder system to be measured.If bell ring lamp is bright, state of antenna feed system is normal.It is conversely, abnormal.Note that electric bell
Stream time can not be long.Detection finishes, you can closes instrument.
Claims (4)
1. a kind of portable antenna-feeder system tester, which is characterized in that including wave detector and host；Detection electricity is equipped in host
Road, the input terminal connection antenna of wave detector, the output terminal of wave detector are connected by coaxial cable with the detection circuit in host；
The detection circuit includes operational amplification circuit, switch driving circuit, condition indication circuit and power circuit；Operational amplification circuit
Input terminal be connected with wave detector, the output terminal of operational amplification circuit is connected with the input terminal of switch driving circuit, switch drive
The output terminal of circuit is connected with the input terminal of condition indication circuit, and power circuit provides operating voltage for each operational module.
A kind of 2. portable antenna-feeder system tester according to claim 1, which is characterized in that the operation amplifier electricity
Road includes resistance R1, R3 and R4, operational amplifier N1 and variable resistance R2；One end of the resistance R1 and the output of wave detector V1
End is connected, and the other end of resistance R1 is connected with the anti-phase input pin of operational amplifier N1；One end ground connection of resistance R3, the other end
It is connected with the non-inverting input pin of operational amplifier N1；One end of variable resistance R2 and the anti-phase input pin phase of operational amplifier
Even, the other end is connected with the output pin of operational amplifier；One end of resistance R4 is connected with the output pin of operational amplifier N1,
The other end is connected with switch driving circuit.
A kind of 3. portable antenna-feeder system tester according to claim 1, which is characterized in that the switch drive electricity
Road includes triode V2 and relay K2；The base stage b of triode V2 is connected with operational amplification circuit output terminal, triode V2's
Repellel e is grounded, and one end of relay K2 input circuits is with the collector c of triode V2 with being connected, relay K2 input circuits
The other end be connected with power circuit, the output loop common end of relay K2 is connected with power circuit, and relay K2's is defeated
Go out circuit normally open end with condition indication circuit to be connected.
A kind of 4. portable antenna-feeder system tester according to claim 3, which is characterized in that the state instruction electricity
Road includes light emitting diode V3 and electric bell G1；Light emitting diode V3 and electric bell G1 is to be connected in parallel, wherein one end and relay K2
Output loop normally open end connects, and the other end is connect with power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801310.9U CN207571200U (en) | 2017-12-21 | 2017-12-21 | A kind of portable antenna-feeder system tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801310.9U CN207571200U (en) | 2017-12-21 | 2017-12-21 | A kind of portable antenna-feeder system tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207571200U true CN207571200U (en) | 2018-07-03 |
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ID=62685760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721801310.9U Active CN207571200U (en) | 2017-12-21 | 2017-12-21 | A kind of portable antenna-feeder system tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN207571200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976587A (en) * | 2017-12-21 | 2018-05-01 | 中国电子科技集团公司第五十四研究所 | A kind of portable antenna-feeder system tester |
-
2017
- 2017-12-21 CN CN201721801310.9U patent/CN207571200U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976587A (en) * | 2017-12-21 | 2018-05-01 | 中国电子科技集团公司第五十四研究所 | A kind of portable antenna-feeder system tester |
| CN107976587B (en) * | 2017-12-21 | 2024-04-09 | 中国电子科技集团公司第五十四研究所 | Portable antenna feed system tester |
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