CN107346994B - Broadband carrier automatic test system and relay level number test method - Google Patents
Broadband carrier automatic test system and relay level number test method Download PDFInfo
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- CN107346994B CN107346994B CN201710803519.7A CN201710803519A CN107346994B CN 107346994 B CN107346994 B CN 107346994B CN 201710803519 A CN201710803519 A CN 201710803519A CN 107346994 B CN107346994 B CN 107346994B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention provides a broadband carrier automatic test system and a relay level number test method. The system comprises a control device and a plurality of transceiving devices. The plurality of transceivers are connected in series through a shielded cable. The control device is respectively in communication connection with the plurality of transceiver devices, wherein the control device realizes automatic test on the broadband carrier wave by controlling whether a communication module inserted on the transceiver device is electrified or not and controlling and adjusting the attenuation value of the electrified transceiver device. Therefore, the number of the powered transceiver can be flexibly controlled to meet the requirements of different test projects, the automatic test of the relay level number and the test of the maximum attenuation resistance can be realized, the test circuit is simplified, the manual participation is reduced, the test process is automatic, and the test efficiency is high.
Description
Technical Field
The invention relates to the field of broadband carrier testing, in particular to a broadband carrier automatic testing system and a relay level number testing method.
Background
With the large-scale application of intelligent electric energy meters and acquisition terminals and the increasing of the requirements of people on the power supply service quality, the coverage rate of the power consumption information acquisition system is also higher and higher, and the broadband carrier test is an important link in the communication detection of the power consumption information acquisition system.
In the prior art, for different test projects in broadband carrier test, a plurality of sets of test devices are required to be adopted for testing, and the input test cost is high.
Moreover, most test projects of the broadband carrier wave depend on manual participation too, continuous automatic test cannot be realized, the degree of automation is low, and the test efficiency is low.
Disclosure of Invention
In order to overcome the defects in the prior art, the technical problem to be solved by the invention is to provide a broadband carrier automatic test system and a relay level test method, which can realize the automatic test of the relay level and the test of the maximum attenuation resistance, simplify the test line, reduce the manual participation, realize the automation of the test process and realize high test efficiency.
The invention provides a broadband carrier automatic test system, which comprises a control device and a plurality of transceiver devices;
the plurality of transceiver devices are connected in series through a shielding cable;
the control device is respectively in communication connection with the plurality of transceiver devices, wherein the control device realizes automatic test on the broadband carrier wave by controlling whether a communication module inserted on the transceiver device is electrified or not and controlling and adjusting the attenuation value of the electrified transceiver device.
In a preferred embodiment of the present invention, the transceiver includes a master transceiver and a plurality of slave transceivers, and the communication module includes a routing module and a carrier module, where the transceiver of the routing module is the master transceiver and the transceiver of the carrier module is the slave transceiver.
In a preferred embodiment of the present invention, the transceiver device includes: a main control unit and a signal attenuation unit;
the signal attenuation unit comprises a plurality of attenuation control modules with different attenuation values;
the main control unit is in communication connection with the signal attenuation unit, and the main control unit realizes control adjustment of attenuation values by controlling the on-off of attenuation control modules with different attenuation values in the signal attenuation unit.
In a preferred embodiment of the present invention, each attenuation control module includes: the main control unit changes the on-off state of the attenuation circuit by adjusting the control switch, so as to realize the control adjustment of the attenuation value.
In a preferred embodiment of the present invention, the transceiver device further includes: the communication module interface is used for inserting a communication module and is respectively connected with the main control unit and the signal attenuation unit;
the signal attenuation unit also comprises a control bus, and the main control unit is used for adjusting the on-off of the attenuation control modules by controlling the control bus to output or not to output control signals.
In a preferred embodiment of the present invention, the control switch of the attenuation control module includes: a movable contact, a normally closed contact and a normally open contact, wherein:
the communication module interface is connected with the movable contact, the signal input end of the attenuation circuit is connected with the normally closed contact, and the signal output end of the attenuation circuit is connected with the normally open contact and the movable contact of the next attenuation control module;
when the control bus indicates that the control switch does not act or the control bus does not indicate, the attenuation control module corresponding to the control switch is in a communication state, at the moment, the movable contact is in contact with the normally closed contact, and the attenuation circuit is connected to a communication line;
when the control bus indicates the control switch to act, the attenuation control module corresponding to the control switch is in an off state, at the moment, the movable contact is disconnected from the normally closed contact, the movable contact is contacted with the normally open contact, and the attenuation circuit is not connected into a communication line.
In a preferred embodiment of the present invention, the transceiver device further includes: the first online communication unit and the power supply unit are used for supplying power to the transceiver;
the transceiver is in communication connection with the control device through the first online communication unit;
the main control unit of the transceiver is connected with the first online communication unit, wherein a control instruction sent by the control device is transmitted to the main control unit through the first online communication unit, so that the main control unit realizes control and adjustment of attenuation values by controlling the on-off of attenuation control modules with different attenuation values in the signal attenuation unit according to the control instruction;
the main control unit is also connected with the power supply unit to control the power supply unit to work.
In a preferred embodiment of the present invention, the main control unit, the power supply unit, the first online communication unit, and the communication module interface are disposed in a shielding box, the signal attenuation unit is disposed in another shielding box, circuits of the two shielding boxes are connected through a shielding wire, and each attenuation control module of the signal attenuation unit is disposed in an independent shielding case respectively.
The invention also provides a relay level number testing method which is applied to a control device included in the broadband carrier automatic testing system in any one of the above steps, and the method comprises the following steps:
controlling a routing module inserted in a master transceiver to power up, controlling a carrier module inserted in a target slave transceiver to power up, and controlling the carrier modules of the rest non-target slave transceivers not to power up;
respectively adjusting attenuation values of signal attenuation units of a master transceiver and a slave transceiver which are connected into a communication line to be preset attenuation values according to the maximum attenuation resistance;
monitoring networking conditions of the master transceiver and the slave transceiver, and detecting relay stages when networking is completed;
and controlling the carrier modules of the next slave transceiver device to be electrified so as to add 1 to the number of the carrier modules accessed to the communication line to perform the relay level test of the next round, wherein the next slave transceiver device is a slave transceiver device directly connected with the slave transceiver device of the electrified carrier module.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a broadband carrier automatic test system and a relay level number test method. The system comprises a control device and a plurality of transceiving devices. The plurality of transceivers are connected in series through a shielded cable. The control device is respectively in communication connection with the plurality of transceiver devices, wherein the control device realizes automatic test on the broadband carrier wave by controlling whether a communication module inserted on the transceiver device is electrified or not and controlling and adjusting the attenuation value of the electrified transceiver device. Therefore, the number of the powered transceiver can be flexibly controlled to meet the requirements of different test projects, the automatic test of the relay level number and the test of the maximum attenuation resistance can be realized, the test circuit is simplified, the manual participation is reduced, the test process is automatic, and the test efficiency is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a wideband carrier automation test system provided by the present invention.
Fig. 2 is a schematic block diagram of a transceiver according to the present invention.
Fig. 3 is a block diagram of the signal attenuation unit 220 shown in fig. 2 according to the present invention.
Fig. 4 is a block diagram of the attenuation control module 222 shown in fig. 3 according to the present invention.
Fig. 5 is a block schematic diagram of a control device provided by the present invention.
Fig. 6 is a flowchart of a step of the relay level testing method provided by the present invention.
Icon: 10-a broadband carrier automatic test system; 100-a control device; 110-a CPU unit; 120-memory cell; 130-a second link communication unit; 140-power supply; 150-a display unit; 160-an input unit; 170-an output unit; 200-a transceiver device; 210-a master control unit; 220-a signal attenuation unit; 222-an attenuation control module; 2220-attenuation circuit; 2222-control switch; 2224-moving contact; 2226-normally closed contact; 2228-normally open contact; 224-control bus; 230-a communication module interface; 240-a first online communication unit; 250-power supply unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that the terms "first," "second," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
First embodiment
The present invention provides a broadband carrier automated test system 10. Referring to fig. 1, fig. 1 is a block diagram of a wideband carrier automation test system 10 according to the present invention. The system comprises a control device 100 and a plurality of transceiving devices 200.
In this embodiment, the control device 100 controls whether the communication module plugged into the transceiver device 200 is powered on, and controls and adjusts the attenuation value of the transceiver device 200 powered on by the communication module to implement an automatic test on the wideband carrier.
In this embodiment, the transceivers 200 are connected in series by a shielded cable. The number of specific settings of the plurality of transceivers 200 may be set according to actual requirements (for example, N transceivers). The control device 100 is respectively connected to the plurality of transceiver devices 200 in a communication manner, wherein the communication manner includes: any one of Ethernet, WIFI, RS485 and the like.
In this embodiment, the transceiver 200 includes a master transceiver and a plurality of slave transceivers. The communication module comprises a routing module and a carrier module, wherein the transceiver 200 of the routing module is a master transceiver, and the transceiver 200 of the carrier module is a slave transceiver.
In this embodiment, the 1 st transceiver 200 connected to the control device 100 is plugged with a routing module as a master transceiver of the wideband carrier automatic test system 10. The remaining N-1 transceivers 200 are plugged with carrier modules as slaves of the broadband carrier automated test system 10.
Referring to fig. 2, fig. 2 is a block diagram of a transceiver 200 according to the present invention. The transceiver 200 includes: the main control unit 210 and the signal attenuation unit 220.
In this embodiment, the main control unit 210 is a control center of the transceiver 200, and is mainly used for identifying and analyzing a control command issued by the control device 100, and controlling each component in the transceiver 200 to execute a corresponding operation according to the control command.
In this embodiment, the main control unit 210 may be an MCU unit (micro control unit, microcontroller Unit). The MCU unit is also called a single-chip microcomputer (Single Chip Microcomputer) or a single-chip microcomputer, which properly reduces the frequency and specification of a central processing unit (Central Process Unit, CPU), integrates peripheral interfaces such as a memory (memory), a counter (Timer), USB, A/D conversion, UART, PLC, DMA and the like and even an LCD driving circuit on a single chip to form a chip-level computer, and can perform different combined control for different application occasions.
Referring again to fig. 2, the transceiver 200 further includes: the first online communication unit 240 and a power supply unit 250 for supplying power to the transceiver 200. The transceiver 200 is communicatively connected to the control device 100 via the first online communication unit 240.
In this embodiment, the main control unit 210 of the transceiver 200 is connected to the first online communication unit 240. The control command sent by the control device 100 is transmitted to the main control unit 210 through the first online communication unit 240, so that the main control unit 210 controls the signal attenuation unit 220 to work according to the control command.
In this embodiment, the main control unit 210 is further connected to a power supply unit 250, and the main control unit 210 controls the power supply unit 250 to supply power to each component in the transceiver 200.
Referring again to fig. 2, the transceiver 200 further includes: the communication module interface 230 is used for plugging in a communication module, and the communication module interface 230 is respectively connected with the main control unit 210 and the signal attenuation unit 220.
In this embodiment, the transceiver 200 is communicatively connected to a communication module through the communication module interface 230, and the communication module is plugged into the communication module interface 230 to implement communication between the transceiver 200 and the communication module.
In this embodiment, the communication module interface 230 may be used for plugging a communication module such as a routing module, a single-phase carrier, a three-phase carrier, etc.
In this embodiment, the communication module interface 230 includes: weak current interface, strong current interface and switch. The weak current interfaces are respectively connected with the main control unit 210 and the weak current pins of the communication module. The strong electric interfaces are respectively connected with an alternating current power supply, a signal attenuation unit 220 and a communication module strong electric pin. The power switch is connected with the power supply unit 250, the main control unit 210 and the power pins of the communication module respectively. Wherein, by controlling the on-off of the power switch, whether the communication module plugged in the communication module interface 230 is powered on or not can be controlled.
It will be appreciated that the configuration depicted in fig. 2 is merely illustrative, and that the transceiver 200 may also include more or fewer components than those shown in fig. 2, or have a different configuration than that shown in fig. 2. The components shown in fig. 2 may be implemented in hardware, software, or a combination thereof.
Referring to fig. 3 and fig. 4, fig. 3 is a block diagram of the signal attenuation unit 220 shown in fig. 2 provided by the present invention, and fig. 4 is a block diagram of the attenuation control module 222 shown in fig. 3 provided by the present invention. The signal attenuation unit 220 includes a plurality of attenuation control modules 222 having different attenuation values.
In this embodiment, the main control unit 210 is communicatively connected to the signal attenuation unit 220, and the main control unit 210 controls the on/off of the attenuation control modules 222 of different attenuation values in the signal attenuation unit 220 to implement control adjustment of the attenuation values.
In this embodiment, each attenuation control module 222 includes: the attenuation circuit 2220 and the control switch 2222 for adjusting the on-off of the attenuation circuit 2220. The attenuation values of the attenuation circuits 2220 corresponding to the attenuation control modules 222 are different, and the main control unit 210 changes the on-off state of the attenuation circuits 2220 by adjusting the control switch 2222, so as to realize control adjustment of the attenuation values.
In this embodiment, the signal attenuation unit 220 further includes a control bus 224, and the main control unit 210 controls the control bus 224 to output or not output a control signal to adjust the on/off states of the attenuation control modules 222, so as to realize control adjustment of attenuation values of the attenuation control modules 222.
In this embodiment, the control switch 2222 of the attenuation control module 222 may be, but is not limited to, a Z-type relay. The control switch 2222 includes: a movable contact 2224, a normally closed contact 2226, and a normally open contact 2228.
In this embodiment, the main control unit 210 changes the on/off states of the normally closed contact 2226 and the normally open contact 2228 of each control switch 2222 by controlling the on/off of the control switch 2222 of each attenuation control module 222, so as to control and adjust the attenuation value.
Referring again to fig. 4, the specific operation of the various contacts of the control switch 2222 will be described.
In this embodiment, the communication module interface 230 is connected to the movable contact 2224, and the signal input terminal of the attenuation circuit 2220 is connected to the normally closed contact 2226. The signal output end of the attenuation circuit 2220 is connected to the normally open contact 2228 and the movable contact 2224 of the next attenuation control module 222 adjacent to the present attenuation control module 222.
In this embodiment, when the control bus 224 indicates that the control switch 2222 does not operate or the control bus 224 does not instruct, the attenuation control module 222 corresponding to the control switch 2222 is in a connected state, and at this time, the movable contact 2224 contacts the normally closed contact 2226, and the attenuation circuit 2220 is connected to a communication line.
In this embodiment, when the control bus 224 indicates that the control switch 2222 is operated, the attenuation control module 222 corresponding to the control switch 2222 is in an open state, at this time, the movable contact 2224 is opened to contact with the normally closed contact 2226, the movable contact 2224 is contacted with the normally open contact 2228, and the attenuation circuit 2220 is not connected to the communication line.
Referring again to fig. 3 and 4, the number of attenuation control modules 222 may be, but is not limited to, 7. The 7 attenuation control modules 222 are connected in sequence between the communication module interface 230 and the next transceiver device 200 in increasing order of attenuation values. The signal output end of the attenuation circuit 2220 of the 7 th attenuation control module 222 is connected to the normally open contact 2228 and the next transceiver 200.
In this embodiment, the attenuation values of the 7 attenuation control modules 222 are 1dB, 2dB, 4dB, 8dB, 16dB, 32dB, and 64dB. The attenuation value of the signal attenuation unit 220 for attenuating the input wideband carrier signal is an attenuation accumulated value of 7 attenuation control modules 222. Thus, the main control unit 210 controls the signal attenuation unit 220 to attenuate the wideband carrier signal in the following attenuation value adjustment range: 0-127 dB.
In this embodiment, the signal attenuation unit 220 operates according to the following principle: when the level on the control line of the control switch 2222 of the attenuation control module 222 is not high, the control switch 2222 is not operated, and the corresponding attenuation circuit 2220 is connected to the communication line to attenuate the broadband carrier signal. When the level on the control line of the control switch 2222 is high, the movable contact 2224 of the control switch 2222 is disconnected from the normally closed contact 2226 and is in contact with the normally open contact 2228, and the corresponding attenuation circuit 2220 is not connected to the communication line, so that no attenuation effect is exerted on the broadband carrier signal.
In this embodiment, the level relationship between the attenuation value of the signal attenuation unit 220 and the control line corresponding to each control switch 2222 is:
where a represents the attenuation value of the entire signal attenuation unit 220, and i is the number of the attenuation control module 222 in the signal attenuation unit 220, i.e. the number of the control switch 2222. S (i) =0 indicates that the control line level of the control switch 2222 is high; s (i) =1 indicates that the control line level of the control switch 2222 is not high.
In this embodiment, the main control unit 210, the power supply unit 250, the first online communication unit 240, and the communication module interface 230 are disposed in a shielding box, the signal attenuation unit 220 is disposed in another shielding box, the circuits of the two shielding boxes are connected by a shielding wire, and each attenuation control module 222 of the signal attenuation unit 220 is disposed in an independent shielding case respectively.
In the present embodiment, the dashed box in fig. 2 represents a shield case, and the dashed boxes in fig. 3 and 4 represent shield cans.
In the present embodiment, by providing the shielding case or the shielding can, first, interference of external noise can be reduced; second, the wideband carrier signal is prevented from crossing the attenuation control module 222 due to spatial radiation, resulting in inaccurate attenuation.
Referring to fig. 5, fig. 5 is a block diagram of a control device 100 according to the present invention. The control device 100 included in the wideband carrier automation test system 10 may adopt the structure provided in fig. 5.
In this embodiment, the control device 100 may be, but is not limited to: computers, PCs, portable computers, industrial personal computers, etc.
In this embodiment, the control device 100 includes a CPU unit 110, a storage unit 120, a second link communication unit 130, a power source 140, a display unit 150, an input unit 160, and an output unit 170. The CPU unit 110 is connected to the storage unit 120, the second link communication unit 130, the power source 140, the display unit 150, the input unit 160, and the output unit 170, respectively, to control these units.
In this embodiment, the CPU unit 110 is configured to control information display, input information identification, data storage of the control device 100, and communication between the control device 100 and the transceiver device 200. The storage unit 120 is used for storing necessary information and data generated in the carrier communication test. The control device 100 communicates with the transceiver device 200 through the second duplex communication unit 130, where a specific implementation manner of the communication connection of the second duplex communication unit 130 is the same as that of the first duplex communication unit 240. The power source 140 is used to provide a source of electrical energy for the control device 100. The display unit 150 is configured to display parameters such as information, data, and a working state of the control device 100 during the carrier communication test. The input unit 160 is used to enable a tester to set, read parameters, information and control commands to devices in the broadband carrier automated test system 10. The output unit 170 is used for exporting test data and records out of the control device 100.
It will be appreciated that the configuration depicted in fig. 5 is merely illustrative, and that the control device 100 may also include more or fewer components than those shown in fig. 5, or have a different configuration than that shown in fig. 5. The components shown in fig. 5 may be implemented in hardware, software, or a combination thereof.
Second embodiment
The invention also provides a relay level test method, when the method is applied to the control device 100 included in the wideband carrier automation test system 10.
Referring to fig. 6, fig. 6 is a flowchart illustrating steps of the relay level test method according to the present invention. The specific flow of the relay level number test method is described in detail below.
Step S110, the router module inserted in the master transceiver is controlled to be powered on, the carrier module inserted in the target slave transceiver is controlled to be powered on, and the carrier modules of the rest non-target slave transceivers are controlled not to be powered on.
In this embodiment, the target slave transceiver is a slave transceiver that is currently required to operate the carrier module to access the communication line, and the non-target slave transceiver is a slave transceiver that is not currently required to operate the carrier module to access the communication line. For example, the wideband carrier automation test system 10 is provided with N transceivers 200, including one master transceiver and N-1 slave transceivers. If the number of communication modules that currently need to be connected to the communication line for testing is set to 2, that is, the transceiver 200 in the system where the communication modules are connected to the communication line for operation only includes 1 master transceiver and 1 slave transceiver. The control device 100 controls the main transceiver device (i.e., the 1 st transceiver device 200) of the add-on routing module to power up the routing module, controls the target slave transceiver device (i.e., the 2 nd transceiver device 200) of the add-on carrier module to power up the carrier module, and controls the power switch in the communication module interfaces 230 of the 3 rd to nth transceiver devices 200 to be turned off. The slave transceiver device requiring power up (i.e., the 2 nd transceiver device 200) is the target slave transceiver device, and the remaining N-2 slave transceiver devices not requiring power up (i.e., the 3 rd to nth transceiver devices 200) are non-target slave transceiver devices.
In step S120, the attenuation values of the signal attenuation units 220 of the master transceiver and the slave transceiver connected to the communication line are respectively adjusted to the preset attenuation values according to the maximum attenuation resistance.
In this embodiment, the control device 100 adjusts the attenuation values of the signal attenuation units 220 of the master transceiver and the slave transceiver connected to the communication line to a preset attenuation value (e.g., M), where L/2 < M < L, where L is the maximum attenuation resistance, and L may be obtained according to an attenuation resistance test or may be input and set by an operator according to a requirement.
In the present embodiment, the number of powered on transceivers 200 in fig. 1 is set to 2, i.e. the access communication line operation only includes 1 master transceiver and 1 slave transceiver. The wideband carrier automated test system 10 may perform an attenuation test on a wideband carrier to obtain a maximum attenuation resistance L.
Step S130, the networking conditions of the master transceiver and the slave transceiver are monitored, and the relay level number is detected when the networking is completed.
In this embodiment, the control device 100 monitors the networking conditions of the master transceiver device and the slave transceiver device, and can complete networking within 5 minutes. The control device 100 detects the current relay level when the networking is completed.
Step S140, the next slave transceiver is controlled to power up to increase the number of carrier modules accessing the communication line by 1, so as to perform the next round of relay level test.
In this embodiment, the next slave transceiver is a slave transceiver that can be directly connected to a slave transceiver of a powered up carrier module. For example, in the system shown in fig. 1, the number of transceivers 200 currently operating in the access communication line is: n=3, i.e. the 1 st is the master transceiver, the 2 nd and 3 rd is the slave transceiver, and the next slave transceiver is the 4 th transceiver 200 directly connected to the 3 rd transceiver 200, i.e. the number of transceivers 200 performing the next round of relay level test is: n=4.
Referring again to fig. 6, the method further includes: in step S150, when it is detected that the relay level is not increased or the newly accessed carrier module on the slave transceiver device cannot be accessed into the communication line, the maximum relay level is detected.
In this embodiment, when the control device 100 detects that the relay level is no longer increased or that the newly accessed carrier module on the slave transceiver device cannot be accessed into the communication line, the control device 100 detects that the obtained relay level is the maximum relay level, that is, the limit value of the relay capability of the broadband carrier. For example, when the control device 100 detects that the relay level number of the current test is 3 (i.e., n=3), and when the next round of test is performed (i.e., n=4), the control device 100 detects that the 4 th slave transceiver device carrier module cannot access the communication line, so that the control device 100 can obtain the maximum relay level number of the wideband carrier to be 3.
In summary, the present invention provides a wideband carrier automatic test system and a relay level test method. The system comprises a control device and a plurality of transceiving devices. The plurality of transceivers are connected in series through a shielded cable. The control device is respectively in communication connection with the plurality of transceiver devices, wherein the control device realizes automatic test on the broadband carrier wave by controlling whether a communication module inserted on the transceiver device is electrified or not and controlling and adjusting the attenuation value of the electrified transceiver device.
Therefore, the number of the powered transceiver can be flexibly controlled to meet the requirements of different test projects, the automatic test of the relay level number and the test of the maximum attenuation resistance can be realized, the test circuit is simplified, the manual participation is reduced, the test process is automatic, and the test efficiency is high.
The foregoing description is only of the preferred embodiments of the invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The broadband carrier automatic test system is characterized by comprising a control device and a plurality of transceiving devices;
the plurality of transceiver devices are connected in series through a shielding cable;
the control device is respectively in communication connection with the plurality of transceiver devices, wherein the control device realizes automatic test on the broadband carrier wave by controlling whether a communication module inserted on the transceiver device is electrified or not and controlling and adjusting the attenuation value of the electrified transceiver device;
the transceiver device comprises: a main control unit and a signal attenuation unit;
the signal attenuation unit comprises a plurality of attenuation control modules with different attenuation values;
the main control unit is in communication connection with the signal attenuation unit, and the main control unit controls the on-off of attenuation control modules with different attenuation values in the signal attenuation unit to realize the control and adjustment of the attenuation values;
each attenuation control module includes: the main control unit changes the on-off state of the attenuation circuit by adjusting the control switch so as to realize the control adjustment of the attenuation value;
the transceiver device further includes: the communication module interface is used for inserting a communication module and is respectively connected with the main control unit and the signal attenuation unit;
the signal attenuation unit also comprises a control bus, and the main control unit adjusts the on-off of the attenuation control modules by controlling the control bus to output or not to output control signals;
the control switch of the attenuation control module comprises: a movable contact, a normally closed contact and a normally open contact, wherein:
the communication module interface is connected with the movable contact, the signal input end of the attenuation circuit is connected with the normally closed contact, and the signal output end of the attenuation circuit is connected with the normally open contact and the movable contact of the next attenuation control module;
when the control bus indicates that the control switch does not act or the control bus does not indicate, the attenuation control module corresponding to the control switch is in a communication state, at the moment, the movable contact is in contact with the normally closed contact, and the attenuation circuit is connected to a communication line;
when the control bus indicates the control switch to act, the attenuation control module corresponding to the control switch is in an off state, at the moment, the movable contact is disconnected from the normally closed contact, the movable contact is contacted with the normally open contact, and the attenuation circuit is not connected into a communication line.
2. The system of claim 1, wherein the transceiver comprises a master transceiver and a plurality of slave transceivers, the communication module comprises a routing module and a carrier module, wherein the transceiver of the routing module is the master transceiver and the transceiver of the carrier module is the slave transceiver.
3. The system of claim 1, wherein the transceiver means further comprises: the first online communication unit and the power supply unit are used for supplying power to the transceiver;
the transceiver is in communication connection with the control device through the first online communication unit;
the main control unit of the transceiver is connected with the first online communication unit, wherein a control instruction sent by the control device is transmitted to the main control unit through the first online communication unit, so that the main control unit realizes control and adjustment of attenuation values by controlling the on-off of attenuation control modules with different attenuation values in the signal attenuation unit according to the control instruction;
the main control unit is also connected with the power supply unit to control the power supply unit to work.
4. The system of claim 3, wherein the main control unit, the power supply unit, the first on-line communication unit, and the communication module interface are disposed in a shielding box, the signal attenuation unit is disposed in another shielding box, the circuits of the two shielding boxes are connected by a shielding wire, and each attenuation control module of the signal attenuation unit is disposed in an independent shielding cover.
5. A relay level number test method, wherein the method is applied to a control device included in the broadband carrier automation test system in any one of claims 1 to 4, and the method includes:
controlling a routing module inserted in a master transceiver to power up, controlling a carrier module inserted in a target slave transceiver to power up, and controlling the carrier modules of the rest non-target slave transceivers not to power up;
respectively adjusting attenuation values of signal attenuation units of a master transceiver and a slave transceiver which are connected into a communication line to be preset attenuation values according to the maximum attenuation resistance;
monitoring networking conditions of the master transceiver and the slave transceiver, and detecting relay stages when networking is completed;
and controlling the carrier modules of the next slave transceiver device to be electrified so as to add 1 to the number of the carrier modules accessed to the communication line to perform the relay level test of the next round, wherein the next slave transceiver device is a slave transceiver device directly connected with the slave transceiver device of the electrified carrier module.
6. The method of claim 5, wherein the method further comprises:
and detecting to obtain the maximum relay level when the relay level is not increased or the carrier module on the slave transceiver device which is newly accessed can not be accessed into the communication line.
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| US9615270B2 (en) * | 2013-11-04 | 2017-04-04 | State Grid Corporation Of China | Intelligent power utilization communication product detecting system |
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