CN208143214U - A kind of detection device and system of multi-system access platform leakage cable - Google Patents
A kind of detection device and system of multi-system access platform leakage cable Download PDFInfo
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- CN208143214U CN208143214U CN201820624339.2U CN201820624339U CN208143214U CN 208143214 U CN208143214 U CN 208143214U CN 201820624339 U CN201820624339 U CN 201820624339U CN 208143214 U CN208143214 U CN 208143214U
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Abstract
The utility model discloses the detection device and system of a kind of multi-system access platform leakage cable, the detection device of the multi-system access platform leakage cable includes：Master data processing module and from data processing module；It is described to be communicated to connect from data processing module and the master data processing module.The utility model realizes the installation situation of remote real time monitoring multi-system access platform leakage cable, detects without interrupting communication and carrying cumbersome apparatus to leakage cable.
Description
Technical Field
The utility model belongs to leaky cable loss detection area, concretely relates to multi-system access platform leaks check out test set and system of cable.
Background
The Leaky Cable is a Leaky Coaxial Cable (leakage Coaxial Cable) which is usually called as a Leaky Cable or a Leaky Cable for short, has a structure basically consistent with that of a common Coaxial Cable, and consists of an inner conductor, an insulating medium and an outer conductor provided with periodic slotted holes. Electromagnetic waves are longitudinally transmitted in the leaky cable and are radiated to the outside through the slotted holes; the external electromagnetic field can be induced into the leaky cable through the slotted hole and transmitted to the receiving end. In the prior art, when testing whether installation of a multi-system Platform (POI) leaky cable is correct and whether a disconnection phenomenon occurs is detected, one method is to manually use professional testing equipment to test signal strength along a leaky cable line after all equipment and leaky cables are installed and base station signals are introduced. Another method is to introduce a signal source and a spectrometer to test the line loss of the leaky cable. However, the prior art testing techniques have the following drawbacks: when the insertion loss of the leaky cable needs to be tested to determine whether the insertion loss of the leaky cable is problematic when the POI leaky cable equipment is used, the POI leaky cable equipment is required to be manually carried, and input and output ports of the POI leaky cable equipment are required to be disconnected to be connected with the testing equipment, so that communication is interrupted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a detecting equipment and system that multisystem access platform leaks cable realize the installation situation that long-range real-time supervision multisystem access platform leaks the cable, need not interrupt communication and carries heavy equipment and detect leaking the cable.
For solving the technical problem above, the embodiment of the utility model provides a multi-system access platform leaks check out test set of cable, include: the device comprises a master data processing module and a slave data processing module; the slave data processing module is in communication connection with the master data processing module; wherein,
the main data processing module comprises a first processor, a first signal transceiver, a detection signal generator and a first power detector; the slave data processing module comprises a filter amplifier, a second power detector, a second processor and a second signal transceiver;
one end of the detection signal generator is connected with the first processor, and the other end of the detection signal generator is connected with the first power detector; one end of the first power detector is connected with a radio frequency line and used for sending a detection signal, and the other end of the first power detector is connected with the first processor; the first processor is also connected with the first signal transceiver;
one end of the filter amplifier is connected with a radio frequency line and used for receiving a detection signal, and the other end of the filter amplifier is connected with the second power detector; one end of the second processor is connected with the second power detector, and the other end of the second processor is connected with the second signal transceiver.
Further, the main data processing module further comprises a radio frequency attenuator connected between the detection signal generator and the first power detector.
Further, the filter amplifier comprises a sound surface filter and a radio frequency amplifier;
one end of the acoustic surface filter is connected with a radio frequency line and used for receiving the detection signal, and the other end of the acoustic surface filter is connected with the radio frequency amplifier; the radio frequency amplifier is also connected to the second power detector.
Preferably, the detection signal generator is a phase locked loop.
Further, the slave data processing module is in communication connection with the master data processing module, specifically: and the first signal transceiver of the master data processing module is in communication connection with the second signal transceiver of the slave data processing module.
Further, the main data processing module further comprises a first display screen; the slave data processing module further comprises a second display screen; the first display screen is connected with the first processor; the second display screen is connected with the second processor.
Preferably, the display screen comprises a cathode ray tube display, a plasma display or a liquid crystal display.
Preferably, the signal transceiver is a modem.
Further, the main data processing module further comprises a first directional coupler; the slave data processing module further comprises a second directional coupler;
one end of the first directional coupler is connected with the output end of the near-end multi-system access platform, the other end of the first directional coupler is connected with the input end of the leaky cable, and the coupling port of the first directional coupler is connected with the first power detector through the radio frequency line;
one end of the second directional coupler is connected with the output end of the far-end multi-system access platform, the other end of the second directional coupler is connected with the output end of the leaky cable, and a coupling port of the second directional coupler is connected with the filter amplifier through the radio frequency line.
Correspondingly, the utility model also provides a detecting system that multisystem access platform leaks cable, include: the system comprises detection equipment for leaky cables of a multi-system access platform, a near-end multi-system access platform, a far-end multi-system access platform and leaky cables;
the output end of the near-end multi-system access platform is connected with the input end of the leaky cable and a main data processing module of the detection equipment of the leaky cable of the multi-system access platform; and the output end of the remote multi-system access platform is connected with the output end of the leaky cable and a slave data processing module of the detection equipment of the leaky cable of the multi-system access platform.
Compared with the prior art, the utility model discloses a check out test set and systematic beneficial effect that many system access platform leaks cable lies in: the detection equipment for the leaky cable of the multi-system access platform comprises a main data processing module and a slave data processing module; the first processor in the main data processing module is connected with the detection signal generator, and the first processor controls the detection signal generator to send a detection signal to the first power detector; the first power detector detects the initial power value of a detection signal and transmits the detection signal to the inside of a leaky cable through a radio frequency line for transmission; the first processor obtains the initial power as a result of the first power detector being connected to the first processor; the detection signal output by the leaky cable enters the filter amplifier of the slave data processing module through the radio frequency line for filtering and amplifying, then enters the second power detector for detecting the actual power value of the detection signal output by the leaky cable, because the second power detector is connected with the second processor, the second processor obtains the actual power value, because the main data processing module is in communication connection with the slave data processing module, the second processor sends the actual power value to the first processor, the first processor judges the loss condition of the leaky cable according to the actual power value and the initial power value, and when the loss condition of the leaky cable is serious, the first processor reports the management platform through the first signal transceiver, so that the installation condition of the leaky cable is remotely monitored in real time, communication does not need to be interrupted, and heavy equipment is not needed to carry for detecting the leaky cable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a multi-system access platform leaky cable detection apparatus provided by the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the multi-system access platform leaky cable detection apparatus provided by the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the system for detecting a leaky cable of a multi-system access platform provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, it is the utility model provides a structural schematic diagram of an embodiment of the check out test set of multi-system access platform leaky cable, this check out test set of multi-system access platform leaky cable includes: a master data processing module 10 and a slave data processing module 20; the slave data processing module 20 is connected with the master data processing module 10 in a communication way; wherein,
the main data processing module 10 comprises a first processor 101, a first signal transceiver 102, a detection signal generator 103 and a first power detector 104; the slave data processing module 20 comprises a filter amplifier 201, a second power detector 202, a second processor 203 and a second signal transceiver 204;
one end of the detection signal generator 103 is connected to the first processor 101, and the other end of the detection signal generator 103 is connected to the first power detector 104; one end of the first power detector 104 is connected to a radio frequency line for transmitting a detection signal, and the other end of the first power detector 104 is connected to the first processor 101; the first processor 101 is further connected with the first signal transceiver 102;
one end of the filter amplifier 201 is connected to a radio frequency line for receiving a detection signal, and the other end of the filter amplifier 201 is connected to the second power detector 202; one end of the second processor 203 is connected to the second power detector 202, and the other end of the second processor 203 is connected to the second signal transceiver 204.
It should be noted that, in the embodiment of the present invention, the radio frequency line is a radio frequency coaxial line, and the electric wire structure is mainly divided into a conductor, an insulator, a shielding layer and an outer cover; the radio frequency coaxial line impedance generally has 50 Ω and 75 Ω, is used for signal transmission, and for example cell-phone coaxial line means the use in the cell-phone, is used for receiving wifi signal's a small segment line, and its insulation and outer use teflon material. The power detector receives a radio-frequency signal which is input by the data processing module through a radio-frequency line and filtered and amplified by the acoustic surface filter and the radio-frequency amplifier, and outputs a voltage component corresponding to the power of the received radio-frequency signal. The processor is preferably a CPU (Central processing Unit) which mainly comprises an Arithmetic Unit (ALU) and a Controller (CU); in addition, a number of registers and caches are included, as well as buses for implementing the data, control and status of the connections between them.
Specifically, since the first processor in the main data processing module is connected to the detection signal generator, the first processor controls the detection signal generator to send a detection signal to the first power detector; the first power detector detects the initial power value of a detection signal and transmits the detection signal to the inside of a leaky cable through a radio frequency line for transmission; the first main processor obtains the initial power as a result of the first power detector being connected to the first processor; the detection signal output by the leaky cable enters the filter amplifier of the slave data processing module through a radio frequency line for filtering and amplifying, then enters the second power detector for detecting the actual power value of the detection signal output by the leaky cable, because the second power detector is connected with the second processor, the second processor obtains the actual power value, because the main data processing module is in communication connection with the slave data processing module, the second processor sends the actual power value to the first processor, the first processor judges the loss condition of the leaky cable according to the actual power value and the initial power value, and when the loss condition of the leaky cable is serious, the first processor reports the management platform through the first signal transceiver, so that the detection equipment of the leaky cable of the multi-system access platform can remotely monitor the installation condition of the leaky cable in real time no matter the equipment system where the leaky cable is in a working state or a preliminary debugging state, the leakage cable can be detected without interrupting communication and carrying heavy equipment.
Further, the main data processing module 10 further comprises a radio frequency attenuator 105 connected between the detection signal generator 103 and the first power detector 104.
Further, the filter amplifier 201 comprises a sound surface filter 211 and a radio frequency amplifier 212;
one end of the acoustic surface filter 211 is connected to a radio frequency line for receiving the detection signal, and the other end is connected to the radio frequency amplifier 212; the rf amplifier 212 is also connected to the second power detector 202.
Preferably, the detection signal generator is a phase locked loop.
It should be noted that, in the embodiment of the present invention, the radio frequency attenuator 106 is an electronic component providing attenuation, and is widely applied to electronic devices, and its main purpose is: (1) adjusting the size of a signal in the circuit; (2) in the comparison method measuring circuit, the attenuation value of the measured network can be directly read; (3) improving impedance matching; the embodiment of the present invention provides that the radio frequency attenuator is inserted between the detection signal generator 103 and the first power detector 104, so as to buffer the change of impedance. The acoustic surface filter 211 (SAW for short) mainly functions by converting an input signal of an electric wave into mechanical energy by using a piezoelectric property of a piezoelectric material and by using an input and output Transducer (Transducer), and then converts the mechanical energy into an electric signal after processing, so as to achieve the purposes of filtering unnecessary signals and noises and improving the signal receiving quality. The acoustic surface filter is widely applied to various wireless communication systems, televisions, video recorders and global positioning system receivers to replace an LC resonance circuit for interstage coupling and filtering. The main function is to filter out the noise, and the installation is simpler and the volume is smaller than the traditional LC filter. The radio frequency amplifier 212(RF PA) is an important component of various wireless transmitters. In a front-stage circuit of a transmitter, radio-frequency signals generated by a modulation oscillation circuit have small power and can be fed to an antenna to be radiated after sufficient radio-frequency power is obtained through a series of amplifying-buffer stage, intermediate amplifying stage and final power amplifying stage; in order to obtain a sufficiently large rf output power, a rf power amplifier is used to amplify the signal. Further, the slave data processing module 20 is in communication connection with the master data processing module 10, specifically: the first signal transceiver 102 of the master data processing module 10 is communicatively connected to the second signal transceiver 204 of the slave data processing module 20. The phase-locked loop is a typical feedback control circuit, controls the frequency and the phase of an internal oscillation signal of the loop by using an externally input reference signal, realizes the automatic tracking of the frequency of an output signal to the frequency of an input signal, and is generally used for a closed-loop tracking circuit; the method for stabilizing frequency in radio transmission mainly includes VCO (voltage controlled oscillator) and PLL IC (phase locked loop integrated circuit), in which the voltage controlled oscillator can give out a signal, one portion can be used as output, another portion can be compared with local oscillator signal produced by PLL IC by means of frequency division, in order to keep frequency constant, it is required that the phase difference does not change, if the phase difference is changed, the voltage of voltage output end of PLL IC can be changed, and the VCO can be controlled until the phase difference is recovered so as to attain the goal of locking phase.
Further, the slave data processing module 20 is in communication connection with the master data processing module 10, specifically: the first signal transceiver 102 of the master data processing module 10 is communicatively connected to the second signal transceiver 204 of the slave data processing module 20.
Further, the main data processing module 10 further includes a first display screen 106; the slave data processing module 20 further comprises a second display screen 205; wherein the first display screen 106 is connected 101 with the first processor; the second display screen 205 is connected to the second processor 203.
Preferably, the display screen comprises a cathode ray tube display, a plasma display or a liquid crystal display.
Preferably, the signal transceiver is a modem.
Further, the main data processing module 10 further comprises a first directional coupler 107; the slave data processing module 20 further comprises a second directional coupler 206;
one end of the first directional coupler 107 is connected with an output end of a near-end multi-system access platform, the other end of the first directional coupler 107 is connected with an input end of a leaky cable, and a coupling port of the first directional coupler 107 is connected with the first power detector 104 through the radio frequency line;
one end of the second directional coupler 206 is connected to an output end of a far-end multi-system access platform, the other end of the second directional coupler 206 is connected to an output end of a leaky cable, and a coupling port of the second directional coupler 206 is connected to the filter amplifier 201 through the radio frequency line.
It should be noted that, in the embodiment of the present invention, the directional coupler is a general microwave/millimeter wave component, and is used for isolation, separation, and mixing of signals, such as power monitoring, source output power amplitude stabilization, signal source isolation, transmission, and reflected frequency sweep test, etc.; the main technical indexes include directivity, standing-wave ratio, coupling degree and insertion loss. The modem is a short term for Modulator and Demodulator, and is used for modulating a digital signal to be transmitted onto a carrier or separating the digital signal from the carrier. Modulation is the conversion of digital signals into analog signals transmitted over telephone lines; demodulation, i.e., converting an analog signal to a digital signal, is known as a modem. The modem converts digital signals into analog signals at a transmitting end through modulation, and converts the analog signals into digital signals at a receiving end through demodulation.
As shown in fig. 2, is a schematic structural diagram of another embodiment of the detection apparatus for a multi-system access platform leaky cable provided by the present invention.
It should be noted that, when the detection device for the multi-system access platform leaky cable detects a leaky cable connected to multiple multi-system access Platforms (POIs) in a tunnel, the first processor 101 of the main data processing module 10 of the detection device for the multi-system access platform leaky cable is connected to the detection signal generator 103, i.e., a phase-locked loop, the first processor 101 controls the detection signal generator 103 to generate a detection signal, where the detection signal is a signal of any frequency point in a radio frequency signal except for CDMA800 (825-MHz, 870-880 MHz) and GSM900 (885-915 MHz, 930-835 MHz) in a transparent transmission frequency band. The detection signal generator 103 sends the detection signal to the radio frequency attenuator 106 for signal attenuation; since the rf attenuator 106 is connected to the first power detector 104, the rf attenuator 105 transmits the attenuated detection signal to the first power detector 104; after receiving the attenuated detection signal, the first power detector 104 outputs a voltage corresponding to the signal power to the first processor 101; the first power detector 104 transmits the detection signal to the coupling port of the first directional coupler 107 through a radio frequency line, and since one end of the first directional coupler 107 is connected to the output end of the near-end multi-system access platform and the other end of the first directional coupler 107 is connected to the input end of the leaky cable, the detection signal is input to the leaky cable for transmission; the first processor 101 obtains the initial power of the detection signal through the voltage value sent by the first power detector 104 (P1).
Because the detection signal is transmitted in the tunnel leaky cable, when the detection signal is transmitted to the leaky cable outside the tunnel through the tunnel leaky cable, since one end of the second directional coupler 206 is connected to the output end of the remote multisystem access platform, the other end of the second directional coupler 206 is connected to the output end of the leaky cable, the detection signal and the original signal output by the leaky cable are transmitted from the coupling port of the second directional coupler 206 of the data processing module 20 to the sound meter filter 211 through a radio frequency line for filtering, the pass band frequency band of the sound meter filter 211 is preset to be the output signal frequency point of the detection signal generator 103, that is, the stopband frequency band of the acoustic watch filter 211 includes CDMA800 (825-835 MHz, 870-880 MHz) and GSM900 (885-915 MHz, 930-960 MHz) frequency bands, the detection signal filtered by the acoustic surface filter 211 enters the radio frequency amplifier 212 for amplification; since the rf amplifier 212 is connected to the second power detector 202, the amplified detection signal enters the second power detector 202; the second power detector 202 outputs a voltage corresponding to the power of the detected signal to the second processor 203, and the second processor 203 obtains the actual power of the detected signal according to the voltage value sent by the second power detector 202 (P2); since the second signal transceiver 204 is connected to the second processor 203, the second processor 203 transmits the actual power (P2) to the main data processing module 10 through the second signal transceiver 204.
Since the first signal transceiver 102 is communicatively connected with the second signal transceiver 204, the first processor 101 is connected with the first signal transceiver 102, and the first processor 101 of the master data processing module 10 receives the actual power of the detection signal transmitted from the slave data processing module 20 through the first signal transceiver 102 (P2); the first processor 101 calculates a power difference of the detection signal after transmission through the leaky cable in the tunnel according to the actual power (P2) and the initial power (P1), and determines whether the power difference meets an insertion loss requirement of a preset leaky cable line, that is, whether the leaky cable has an open circuit or an abnormal phenomenon. When the first processor 101 of the main data processing module 10 determines that the power difference does not meet the insertion loss requirement of the leaky cable, the first processor 101 reports the power difference and the corresponding information of the detected leaky cable to a leaky cable monitoring platform through the first signal transceiver 102, and controls the first display screen 106 to display the power difference and send an alarm; meanwhile, the first processor 101 also sends the power difference to the second processor 203 of the slave data processing module 20 through the first signal transceiver 102, so that the second processor 203 controls the second display screen 205 to synchronously display the power difference and send out an alarm. When the first processor 101 of the master data processing module 10 determines that the power difference meets the insertion loss requirement of the leaky cable, the first processor 101 controls the first display screen 106 to display the power difference, and simultaneously, the first processor 101 further sends the power difference to the second processor 203 of the slave data processing module 20 through the first signal transceiver 102, so that the second processor 203 controls the second display screen 205 to synchronously display the power difference. No matter the equipment system where the leaky cable is located is in a working state or a preliminary debugging state, the detection equipment of the leaky cable of the multi-system access platform can monitor the installation condition of the leaky cable all the time in a remote real-time mode, so that the installation condition of the leaky cable of the POI can be monitored in the remote real-time mode through the detection equipment of the leaky cable of the multi-system access platform, communication does not need to be interrupted, and heavy equipment does not need to be carried to detect the leaky cable.
As shown in fig. 3, is a schematic structural diagram of an embodiment of the system for detecting a leaky cable of a multi-system access platform provided by the present invention.
The embodiment of the utility model provides a still provide a detecting system that multisystem access platform leaks cable, include: the system comprises a multi-system access platform leaky cable detection device 301, a near-end multi-system access platform 302, a far-end multi-system access platform 303 and a leaky cable 304;
the output end of the near-end multi-system access platform 302 is connected with the input end of the leaky cable 304 and the main data processing module 10 of the multi-system access platform leaky cable detection device 301; the output end of the remote multi-system access platform 303 is connected with the output end of the leaky cable 304 and the slave data processing module 20 of the multi-system access platform leaky cable detection device 301.
It should be noted that the output end of the near-end multi-system access platform 302 is connected to the input end of the leaky cable 304 through the first directional coupler 107, and a coupling port of the first directional coupler 107 is connected to the first power detector 104 of the detection device 301 of the multi-system access platform leaky cable through a radio frequency line; the output end of the far-end multi-system access platform 303 is connected with the output end of the leaky cable 304 through the second directional coupler 206, and the coupling port of the second directional coupler 206 is connected with the acoustic surface filter 211 of the multi-system access platform leaky cable detection device 301 through a radio frequency line.
The application scenario of the leaky cable 306 may be a multi-section leaky cable connecting a plurality of transparent transmission type multi-system access Platforms (POIs) in a tunnel. The multi-system access platform (Point of Interface, abbreviated as POI) refers to a specific device located between a multi-system base station information source and an indoor distribution system antenna feeder, is equivalent to a combiner with higher performance index, and has the functions of combining the multi-system base station information sources and outputting the combined information to the indoor distribution system antenna feeder device, and simultaneously outputting a signal from the antenna feeder device to each system information source in a shunting way in the reverse direction.
To sum up, the utility model provides a detection equipment and system of multi-system access platform leaky cable, the detection equipment of multi-system access platform leaky cable includes main data processing module and from data processing module; the first processor in the main data processing module is connected with the detection signal generator, and the first processor controls the detection signal generator to send a detection signal to the first power detector; the first power detector detects the initial power value of a detection signal and transmits the detection signal to the inside of a leaky cable through a radio frequency line for transmission; the first main processor obtains the initial power as a result of the first power detector being connected to the first processor; the detection signal output by the leaky cable enters the filter amplifier of the slave data processing module through the radio frequency line for filtering and amplifying, then enters the second power detector for detecting the actual power value of the detection signal output by the leaky cable, because the second power detector is connected with the second processor, the second processor obtains the actual power value, because the main data processing module is in communication connection with the slave data processing module, the second processor sends the actual power value to the first processor, the first processor judges the loss condition of the leaky cable according to the actual power value and the initial power value, and when the loss condition of the leaky cable is serious, the first processor reports the management platform through the first signal transceiver, so that the installation condition of the leaky cable is remotely monitored in real time, communication does not need to be interrupted, and heavy equipment is not needed to carry for detecting the leaky cable.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides a check out test set that multi-system access platform leaks cable which characterized in that includes: the device comprises a master data processing module and a slave data processing module; the slave data processing module is in communication connection with the master data processing module; wherein,
the main data processing module comprises a first processor, a first signal transceiver, a detection signal generator and a first power detector; the slave data processing module comprises a filter amplifier, a second power detector, a second processor and a second signal transceiver;
one end of the detection signal generator is connected with the first processor, and the other end of the detection signal generator is connected with the first power detector; one end of the first power detector is connected with a radio frequency line and used for sending a detection signal, and the other end of the first power detector is connected with the first processor; the first processor is also connected with the first signal transceiver;
one end of the filter amplifier is connected with a radio frequency line and used for receiving a detection signal, and the other end of the filter amplifier is connected with the second power detector; one end of the second processor is connected with the second power detector, and the other end of the second processor is connected with the second signal transceiver.
2. The apparatus of claim 1, wherein the main data processing module further comprises a radio frequency attenuator coupled between the detection signal generator and the first power detector.
3. The multi-system access platform leaky cable detection apparatus as claimed in claim 1, wherein said filter amplifier includes a sound meter filter and a radio frequency amplifier;
one end of the acoustic surface filter is connected with a radio frequency line and used for receiving the detection signal, and the other end of the acoustic surface filter is connected with the radio frequency amplifier; the radio frequency amplifier is also connected to the second power detector.
4. The apparatus of claim 1, wherein the detection signal generator is a phase locked loop.
5. The apparatus for detecting multiple system access platform leaky cable as claimed in claim 1, wherein said slave data processing module is communicatively connected to said master data processing module, specifically: and the first signal transceiver of the master data processing module is in communication connection with the second signal transceiver of the slave data processing module.
6. The multi-system access platform leaky cable detection apparatus as claimed in claim 1, wherein said main data processing module further comprises a first display screen; the slave data processing module further comprises a second display screen; the first display screen is connected with the first processor; the second display screen is connected with the second processor.
7. The multi-system access platform leaky cable detection apparatus as claimed in claim 6, wherein said display screen comprises a cathode ray tube display, a plasma display, or a liquid crystal display.
8. The apparatus of claim 1, wherein the signal transceiver is a modem.
9. The multi-system access platform leaky cable detection apparatus as claimed in claim 1, wherein said main data processing module further comprises a first directional coupler; the slave data processing module further comprises a second directional coupler;
one end of the first directional coupler is connected with the output end of the near-end multi-system access platform, the other end of the first directional coupler is connected with the input end of the leaky cable, and the coupling port of the first directional coupler is connected with the first power detector through the radio frequency line;
one end of the second directional coupler is connected with the output end of the far-end multi-system access platform, the other end of the second directional coupler is connected with the output end of the leaky cable, and a coupling port of the second directional coupler is connected with the filter amplifier through the radio frequency line.
10. A multi-system access platform leaky cable detection system is characterized by comprising: the system comprises detection equipment for leaky cables of a multi-system access platform, a near-end multi-system access platform, a far-end multi-system access platform and leaky cables;
the multi-system access platform leaky cable detection device is the multi-system access platform leaky cable detection device in any one of claims 1 to 9;
the output end of the near-end multi-system access platform is connected with the input end of the leaky cable and a main data processing module of the detection equipment of the leaky cable of the multi-system access platform; and the output end of the remote multi-system access platform is connected with the output end of the leaky cable and a slave data processing module of the detection equipment of the leaky cable of the multi-system access platform.
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|---|---|---|---|
| CN201820624339.2U CN208143214U (en) | 2018-04-27 | 2018-04-27 | A kind of detection device and system of multi-system access platform leakage cable |
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| CN201820624339.2U CN208143214U (en) | 2018-04-27 | 2018-04-27 | A kind of detection device and system of multi-system access platform leakage cable |
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| CN208143214U true CN208143214U (en) | 2018-11-23 |
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| CN201820624339.2U Expired - Fee Related CN208143214U (en) | 2018-04-27 | 2018-04-27 | A kind of detection device and system of multi-system access platform leakage cable |
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2018
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