Disclosure of Invention
The invention aims to provide a method and a system for automatically evaluating network wiring.
The invention further aims to solve the technical problems that the network on-off detection efficiency is low and the operation is complex by testing the on-off of a single double-crystal-head network cable through a network in the prior art.
Another further purpose of the present invention is to automatically, quickly and efficiently detect the network cable quality, train the relevant professionals, judge and display the production result of the line in real time, and use the line as a technical assessment device for technicians.
Particularly, the invention provides a method for automatically evaluating network wiring, which comprises the following steps:
connecting the network wiring to the interfaces for detecting the network wiring in the system for detecting the network wiring;
the method comprises the steps that a system for detecting network wiring is powered on, the network wiring is connected with an I/O expansion module in an I/O expansion chip for detecting the on-off state of RJ45 in the system for detecting the network wiring, and the RJ45 interface, the on-off state and the line condition of a direct connection line or a cross line which are connected with the network wiring are detected through the I/O expansion module in the I/O expansion chip and are sent to a display for displaying;
the network wiring and the laser generator in the network wiring system output and collect the light attenuation data of the network wiring; when the light attenuation data of the network wiring reaches or exceeds a light attenuation data threshold value, marking that the optical fiber of the network wiring is unqualified, recording and uploading an optical fiber detection result to a display for displaying;
and calling a USB camera in the network wiring and network wiring system, shooting an image of an interface accessed to an RJ45 terminal, comparing the image with a preset interface accessed to an RJ45 terminal and an image of a sub-line head profile of the accessed terminal to obtain a profile of the head of the accessed terminal, comparing the profile with a preset color code line sequence to judge the color code line sequence of the head of the accessed terminal, and recording and uploading a judgment result to a display for displaying.
Further, the detecting, by the I/O expansion module in the I/O expansion chip, the RJ45 interface, the on/off state, and the line condition of the direct line or the cross line connected to the network wiring and sending the detected conditions to the display for displaying includes:
setting half of I/O expansion modules in the I/O expansion chip to be in an output state, and positioning and recording connected RJ45 interfaces when detecting that the I/O expansion modules which are not set to be in the output state in the I/O expansion chip have low-level I/O ports; judging the on-off condition of the access network line according to whether the access network line has a low level; and judging the line condition of a direct line or a cross line of the access network line according to the low-level strong and weak condition, and sending the line condition to a display for displaying.
Further, the network wiring and the laser generator in the network wiring system output, and the light attenuation data of the network wiring is collected, and the data is:
the network wiring and the laser generator in the network wiring system output to calibrate the light attenuation sensor data;
and after correcting the data of the light attenuation sensor without errors, collecting the light attenuation data of the network wiring.
Further, wherein the method further comprises:
in an image of an interface accessed to an RJ45 terminal, if the terminal end of a thread contour cannot be detected, adjusting focusing, supplementing light and improving image definition according to preset parameters, and acquiring the image of the interface accessed to the RJ45 terminal again to detect the terminal end of the thread contour; if still can't obtain clear image, upload the interface position of access RJ45 terminal and show.
Further, wherein the method further comprises:
connecting a system for detecting network wiring with a collection server of network wiring test data;
and uploading the data detected by the system for detecting the network wiring in real time to the collection server for storage according to the wiring position, the wiring total port information and the information of each detection port.
In another aspect, the present invention further provides a system for automatically evaluating network cabling, including: the system comprises a network wiring interface, a detection controller, an RJ45 on-off detector, an optical fiber attenuation tester and an RJ45 terminal color code sequence detector; wherein,
the network wiring interface is connected with the detection controller and is used for connecting network wiring and connecting the communication of the network wiring to the detection controller in a system for detecting the network wiring;
the detection controller is connected with the network wiring interface, the RJ45 on-off detector, the optical fiber attenuation tester and the RJ45 terminal color code line sequence detector, and is used for receiving information data of the network wiring interface, the RJ45 on-off detector, the optical fiber attenuation tester and the RJ45 terminal color code line sequence detector and sending a detection control instruction to the network wiring interface, the RJ45 on-off detector, the optical fiber attenuation tester and the RJ45 terminal color code line sequence detector;
the RJ45 on-off detector is connected with the detection controller and used for connecting the network wiring with an I/O expansion module in an I/O expansion chip for detecting the on-off of the RJ45 in the system of the network wiring after the system for detecting the network wiring is electrified, and detecting the RJ45 interface, the on-off state and the line condition of a direct connection line or a cross line connected with the network wiring through the I/O expansion module in the I/O expansion chip and sending the line condition to a display for displaying;
the optical fiber attenuation tester is connected with the detection controller and used for outputting the network wiring and a laser generator in a network wiring system and collecting light attenuation data of the network wiring; when the light attenuation data of the network wiring reaches or exceeds a light attenuation data threshold value, marking that the optical fiber of the network wiring is unqualified, recording and uploading an optical fiber detection result to a display for displaying;
and the RJ45 terminal color code line order detector is connected with the detection controller and used for calling a USB camera in the network wiring and network wiring system, shooting an image of an interface accessed into the RJ45 terminal, comparing the image with a preset interface accessed into the RJ45 terminal and an image of an outline of the access terminal line head, judging the color code line order of the access terminal line head by comparing with the preset color code line order when the outline of the access terminal line head is obtained, and recording and uploading the judgment result to a display for displaying.
Further, wherein, the RJ45 on-off detector includes: the system comprises an RJ45 interface detection unit, a network wiring on-off detection unit and a network wiring direct connection/cross detection unit; wherein,
the RJ45 interface detection unit is connected with the detection controller and the network wiring on-off detection unit and is used for setting half of the I/O expansion modules in the I/O expansion chip to be in an output state, and when detecting that the I/O expansion modules which are not set to be in the output state in the I/O expansion chip have low-level I/O ports, positioning and recording the connected RJ45 interface;
the network wiring on-off detection unit is connected with the RJ45 interface detection unit and the network wiring direct connection/cross detection unit and is used for judging the on-off condition of an access network circuit according to whether the low level exists or not;
the network wiring direct connection/cross detection unit is connected with the network wiring on-off detection unit and the detection controller, and is used for judging the line condition of a direct connection line or a cross line of an access network line according to the low-level strong and weak condition and sending the line condition to a display for displaying.
Further, wherein the fiber attenuation tester comprises: the device comprises a light attenuation sensor calibration unit and a light attenuation data acquisition unit; wherein,
the light attenuation sensor calibration unit is connected with the detection controller and the light attenuation data acquisition unit and is used for outputting the network wiring and a laser generator in a network wiring system to calibrate the data of the light attenuation sensor;
and the light attenuation data acquisition unit is connected with the light attenuation sensor calibration unit and used for acquiring the light attenuation data of the network wiring after correcting the data of the light attenuation sensor without errors.
Further, wherein, the RJ45 terminal color code line order detector includes: an RJ45 terminal color code sequence detection unit and an RJ45 terminal color code sequence adjustment unit; wherein,
the RJ45 terminal color code sequence detection unit is connected with the detection controller and the RJ45 terminal color code sequence adjustment unit and is used for calling a USB camera in a system of the network wiring and the network wiring, shooting an image of an interface accessed into the RJ45 terminal, comparing the image with a preset interface accessed into the RJ45 terminal and an outline image of the accessed terminal wire head, judging the color code sequence of the accessed terminal wire head by comparing with the preset color code sequence when the outline of the accessed terminal wire head is obtained, and recording and uploading the judgment result to a display for displaying;
the RJ45 terminal color code sequence adjusting unit is connected with the RJ45 terminal color code sequence detecting unit and used for adjusting focusing, light supplementing and improving image definition according to preset parameters in an image at an interface accessed into the RJ45 terminal if the terminal line head outline cannot be detected, and acquiring the image at the interface accessed into the RJ45 terminal again to detect the terminal line head outline; if still can't obtain clear image, upload the interface position of access RJ45 terminal and show.
Further, wherein the system further comprises: the network wiring test data collection server is connected with the detection controller and is used for:
connecting a system for detecting network wiring with a collection server of network wiring test data;
and uploading the data detected by the system for detecting the network wiring in real time to the collection server for storage according to the wiring position, the wiring total port information and the information of each detection port.
The method and the system for automatically evaluating the network wiring can automatically, quickly and efficiently detect the quality of the network cable, train related professionals and judge and display a production result of the circuit in real time, so the method and the system can be used as technical evaluation equipment for technicians.
Furthermore, the method and the system for automatically evaluating the network wiring can utilize an embedded system and a communication technology to intercommunicate a plurality of groups of network connecting lines, give out the results of line connecting quality and line sequence arrangement through logic operation, finish the judgment of line color code line sequence through a visual recognition system, and accurately obtain the communication condition in the network line. The method can judge whether the RJ-45 network patch cord manufactured according to the TIA/EIA568A and TIA/EIAT568B line sequences is switched on or switched off, judge whether the line sequence standard of the network cord is 568A or 568B, identify the module termination color code line sequence corresponding to the TIA/EIA568A and TIA/EIAT568B standards, output the connected color code line sequence to a display graph in real time, judge whether one optical fiber connected with any two ports of the three groups of optical fibers is switched on or off, measure the color attenuation of the optical fiber patch cord, and output a result to a verification tool with internal circuit connection contained in the display to detect whether the connectivity of each interface is normal, reduce the cost of manual detection, and improve the accuracy of detection.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Detailed Description
As shown in fig. 1 to 5, fig. 1 is a schematic flow chart of a method for automatically evaluating network cabling in the present embodiment; FIG. 2 is a block diagram of a method for automatically evaluating network cabling according to the embodiment of the present invention shown in FIG. 1; fig. 3 is a schematic diagram of a schematic framework of on-off detection of RJ45 in the method for automatically evaluating network cabling according to the embodiment of the present invention; FIG. 4 is a block diagram of a fiber attenuation test according to the method for automatically evaluating network cabling of FIG. 1 in an embodiment of the present invention; fig. 5 is a block diagram illustrating the RJ45 terminal color code order detection in the method for automatically evaluating network cabling according to the embodiment of the present invention. By using an embedded system and a communication technology, a plurality of groups of network connecting lines are communicated, the results of line connection quality and line sequence arrangement are given through logical operation, and the judgment of line color code line sequence is completed through a visual recognition system. The method comprises the following steps:
step 101, respectively connecting the network wiring to the interfaces for detecting the network wiring in the system for detecting the network wiring.
102, electrifying a system for detecting network wiring, connecting the network wiring with an I/O expansion module in an I/O expansion chip for detecting the on-off of RJ45 in the system for detecting the network wiring, detecting the RJ45 interface, the on-off state and the line condition of a direct line or a cross line connected with the network wiring through the I/O expansion module in the I/O expansion chip, and sending the line condition to a display for displaying.
And the verification tool comprises an internal circuit connection for detecting whether the connectivity of each interface is normal.
103, outputting by a laser generator in a network wiring and network wiring system, and collecting light attenuation data of network wiring; and when the light attenuation data of the network wiring reaches or exceeds the light attenuation data threshold, marking that the optical fiber of the network wiring is unqualified, recording and uploading the optical fiber detection result to a display for displaying.
And judging whether one optical fiber connected with any two ports of the three groups of optical fibers is on or off, and measuring and calculating the color attenuation of the optical fiber patch cord. And outputs the result to a display
And step 104, calling a USB camera in a network wiring and network wiring system, shooting an image of an interface accessed to the RJ45 terminal, comparing the image with a preset image of an interface accessed to the RJ45 terminal and a preset image of the outline of the line head of the access terminal, comparing the image with a preset color code line sequence to judge the color code line sequence of the line head of the access terminal when the outline of the line head of the access terminal is obtained, and recording and uploading a judgment result to a display for displaying.
The system can finish RJ-45 distribution frame and cable termination verification test and output connected color code line sequence to a display graph in real time according to the termination principle of the distribution frame, can identify the distribution frame termination color code line sequence corresponding to TIA/EIA568A and TIA/EIAT568B, finish termination of the twisted pair on the distribution frame, judge whether correct wiring is performed and output the connected color code line sequence to the display graph in real time. The method can judge the on-off of the RJ-45 network jumper manufactured according to the TIA/EIA568A and TIA/EIAT568B line sequences, judge the line sequence standard of the network line to be 568A or 568B, identify the module termination color code line sequence corresponding to the TIA/EIA568A and TIA/EIAT568B standard, and output the connected color code line sequence to a display graph in real time.
In some specific embodiments, as shown in fig. 19, which is a schematic diagram of a system panel of a practical training assessment platform for network integrated wiring in this embodiment, an interface on the network wiring detection device in this embodiment may include: line D1, a category of network interface, is divided into two groups of 12 RJ45 interfaces and two groups of 12 wire bonding ports for training the wiring and wiring capabilities of the category five and category fifteen networks and testing the connectivity type standards and connectivity quality of the networks. The test question system can randomly assign a test port, and the system can detect the connection quality of the network cable in real time. Optionally, the method may further include: line D2, a category of super-six network interfaces, is divided into two groups of 12 RJ45 interfaces and two groups of 12 wire bonding interfaces for training the wiring and distribution capabilities of the category-six and super-six networks and testing the connection type standards and connection quality of the networks. Optionally, the method may further include: line D3, which is three 86 dual-port network information panels, net1 and net2 set of forward information ports, net5 and net6 set of reverse information ports, and net9 and net10 set of forward information ports, is used to train 86 information panel network installation and test connectivity type standard and connectivity quality of network in cooperation with RJ45 net ports net3, net4, net7 and net 8. Optionally, the method may further include: the D4 behavior is three pairs of optical fiber interfaces and 50 pairs of 110-log voice wire-bonding seats, the three pairs of optical fiber interfaces are divided into three different interface types of SC, ST and LC and are used for training cold connection of different types of interfaces of optical fibers, hot melting and testing connectivity, optical attenuation and length of optical fibers of different types of manufactured interfaces. The 110 voice wire bonding seat is used for training the wiring and arranging wires of the voice system and carrying out corresponding connection test.
Alternatively, as shown in fig. 6 and 7, fig. 6 is a schematic flow chart of another method for automatically evaluating network cabling in this embodiment; FIG. 7 is a flowchart illustrating operation of the method for automatically evaluating network cabling shown in FIG. 6; different from fig. 1, step 102, powering on the system for detecting the network wiring, connecting the network wiring to the I/O expansion module in the I/O expansion chip for detecting the on/off of the RJ45 in the system for network wiring, detecting the RJ45 interface, the on/off state, and the line condition of the direct line or the cross line connected to the network wiring through the I/O expansion module in the I/O expansion chip, and sending the detected conditions to the display for display, which is:
step 601, electrifying a system for detecting network wiring, wherein the network wiring is connected with an I/O expansion module in an I/O expansion chip for detecting the on-off state of RJ45 in the system for network wiring.
Step 602, setting half of the number of I/O expansion modules in the I/O expansion chip to be in an output state, and when detecting that an I/O expansion module which is not set to be in the output state in the I/O expansion chip has a low-level I/O port, positioning and recording the connected RJ45 interface.
Step 603, judging the on-off condition of the access network line according to whether the low level exists; and judging the line condition of a direct line or a cross line of the access network line according to the low-level strong and weak condition, and sending the line condition to a display for displaying.
Alternatively, as shown in fig. 8 and 9, fig. 8 is a schematic flow chart of another method for automatically evaluating network cabling in this embodiment; fig. 9 is a schematic diagram of an operation flow of the method for automatically evaluating network cabling in fig. 8, which is different from fig. 1 in that, in step 103, the network cabling and the system of network cabling output a laser generator, and network cabling light attenuation data is collected; when the light attenuation data of the network wiring reaches or exceeds the light attenuation data threshold, marking that the optical fiber of the network wiring is unqualified, recording and uploading the optical fiber detection result to a display for displaying, and the method comprises the following steps:
step 801, outputting by a laser generator in a network wiring and network wiring system, and calibrating the data of the light attenuation sensor.
And step 802, collecting the light attenuation data of the network wiring after correcting the data of the light attenuation sensor without errors.
And 803, when the light attenuation data of the network wiring reaches or exceeds the light attenuation data threshold, marking that the optical fiber of the network wiring is unqualified, recording and uploading the optical fiber detection result to a display for display.
Alternatively, as shown in fig. 10 and fig. 11, fig. 10 is a schematic flowchart of another method for automatically evaluating network cabling in this embodiment; FIG. 11 is a flowchart illustrating operation of the method for automatically evaluating network cabling shown in FIG. 10; different from fig. 1, step 104, calling a USB camera in a network wiring and network wiring system, shooting an image at an interface of an access RJ45 terminal, comparing the image with a preset image of an interface of an access RJ45 terminal and an outline of the access terminal line head, when an access terminal line head outline is obtained, comparing the image with a preset color code line sequence to judge the color code line sequence of the access terminal line head, recording and uploading the judgment result to a display for displaying, and performing:
and 1001, calling a USB camera in a network wiring and network wiring system, shooting an image of an interface accessed to an RJ45 terminal, comparing the image with a preset image of an interface accessed to an RJ45 terminal and a profile of an access terminal line head, comparing the image with a preset color code line sequence to judge the color code line sequence of the access terminal line head when the profile of the access terminal line head is obtained, and recording and uploading a judgment result to a display for displaying.
Step 1002, in an image of an interface accessed to an RJ45 terminal, if the terminal end of a wire contour cannot be detected, adjusting focusing, supplementing light and improving image definition according to preset parameters, and acquiring the image of the interface accessed to the RJ45 terminal again to detect the terminal end of the wire contour; if still can't obtain clear image, will insert the interface position of RJ45 terminal and upload the display.
Optionally, as shown in fig. 12 and 13, fig. 12 is a schematic flowchart of another method for automatically evaluating network cabling in this embodiment; fig. 13 is a schematic diagram of a framework of the method for automatically evaluating the network wiring of fig. 12 according to the present embodiment; unlike in fig. 1, the method further comprises the following steps:
step 1201, connecting the system for detecting the network wiring with a collection server of the network wiring test data.
Step 1202, uploading data detected by the system for detecting network wiring to a collection server for storage according to the wiring position, the wiring total port information and the information of each detection port in real time.
The method for automatically evaluating the network wiring is divided into three detection parts: and RJ45 on-off detection: after the detection system is powered on, carrying out initialization operation, carrying out handshake communication with 32I/O expansion modules, sequentially setting 16I/O ports of the expansion modules to be in an output state, simultaneously detecting whether the rest I/O ports are pulled down to be in a low level state, and if the low level I/O ports are detected, positioning and recording connected RJ45 interfaces; secondly, further detecting whether a circuit breaking condition exists or not, and if the circuit breaking condition does not exist, further detecting and recording whether the conducting wire is a direct connecting wire or a cross wire; if the circuit breaking condition exists, the circuit breaking condition is recorded and the other lines are continuously detected. After the system detects a group of I/O ports, judging whether all the I/O ports are detected completely or not, and continuing to set an expansion module for detection if the I/O ports are not detected completely; and if the detection is finished, uploading the detection result and finishing the detection.
And (3) optical fiber attenuation test: after the test system is powered on, carrying out initialization operation; the system sequentially controls the output of the laser generator, performs light attenuation sensor data calibration, and simultaneously performs AD sampling on light attenuation data; the system judges whether the sampled light attenuation data exceeds a threshold value, if so, the optical fiber is judged to be unqualified, and the detection result is recorded and uploaded; if the optical fiber does not exceed the threshold value, the optical fiber is judged to be qualified, and the detection result is recorded and uploaded. After the system detects a group of optical fibers, judging whether all the optical fibers are detected completely or not, and continuing to perform optical fiber detection according to the detection step if the optical fibers are not detected completely; and if the detection is finished, ending the optical fiber detection.
RJ45 terminal color code line order detection: after the detection system is powered on, carrying out initialization operation and configuring USB camera equipment; the system acquires 1 frame of image and detects whether a wiring terminal exists in the image; if the wiring terminal is detected, the system judges whether the image can detect the terminal line head outline or not, if the system can not detect the terminal line head outline, the focusing and the light supplementing are adjusted, the image definition is improved, and 1 frame of image is obtained again to detect the terminal line head outline; if no clear image can be obtained, the system prompts manual intervention for pre-adjustment. And after the system acquires a clear image and detects the contour of the terminal end of a wire, judging whether the color code line sequence meets the requirement, recording the judgment result and uploading the detection result, and finishing the detection of the color code line sequence by the system. The connection on-off of the 50 voice cables is the same as the line sequence judging and detecting method and the network cable detecting method, and the description is omitted here.
Fig. 14 is a schematic structural diagram of a system 1400 for automatically evaluating network cabling according to this embodiment, which can be used to implement the above-mentioned method for automatically evaluating network cabling, and the system includes: a network wiring interface 1401, a detection controller 1402, an RJ45 on-off detector 1403, a fiber attenuation tester 1404, and an RJ45 terminal color sequencing detector 1405.
The network wiring interface 1401 is connected to the detection controller 1402, and is used for connecting the network wiring and connecting the communication of the network wiring to the detection controller in the system for detecting the network wiring.
And the detection controller 1402 is connected with the network wiring interface 1401, the RJ45 on-off detector 1403, the optical fiber attenuation tester 1404 and the RJ45 terminal color code sequence detector 1405, and is used for receiving information data of the network wiring interface, the RJ45 on-off detector, the optical fiber attenuation tester and the RJ45 terminal color code sequence detector, and sending a detection control command to the network wiring interface, the RJ45 on-off detector, the optical fiber attenuation tester and the RJ45 terminal color code sequence detector.
And an RJ45 on-off detector 1403 connected to the detection controller 1402, for connecting the network wiring to an I/O expansion module in an I/O expansion chip for detecting on-off of RJ45 in the network wiring system after the system for detecting the network wiring is powered on, detecting an RJ45 interface, an on-off state, and a line condition of a direct connection line or a cross line connected to the network wiring through the I/O expansion module in the I/O expansion chip, and sending the detected signals to a display for display.
The optical fiber attenuation tester 1404 is connected with the detection controller 1402, and is used for outputting the laser generator in the network wiring and network wiring system and collecting the light attenuation data of the network wiring; and when the light attenuation data of the network wiring reaches or exceeds the light attenuation data threshold, marking that the optical fiber of the network wiring is unqualified, recording and uploading the optical fiber detection result to a display for displaying.
The RJ45 terminal color code line order detector 1405 is connected with the detection controller 1402 and used for calling a USB camera in a network wiring and network wiring system, shooting an image of an interface connected with an RJ45 terminal, comparing the image with a preset interface connected with an RJ45 terminal and an image of a profile of the line head of the access terminal, judging the color code line order of the line head of the access terminal by comparing with the preset color code line order when the profile of the line head of the access terminal is obtained, and recording and uploading the judgment result to a display for displaying.
Alternatively, as shown in fig. 15, which is a schematic structural diagram of another system 1500 for automatically evaluating network wiring in this embodiment, different from fig. 14, an RJ45 on-off detector 1403 includes: an RJ45 interface detection unit 1431, a network wiring on-off detection unit 1432, and a network wiring direct connection/cross detection unit 1433.
The RJ45 interface detecting unit 1431 is connected to the detection controller 1402 and the network wiring on-off detecting unit 1432, and is configured to set half of the I/O expansion modules in the I/O expansion chip to be in an output state, and when detecting that an I/O expansion module in the I/O expansion chip that is not set to be in the output state has a low-level I/O port, locate and record the connected RJ45 interface.
And a network wiring on-off detection unit 1432, connected to the RJ45 interface detection unit 1431 and the network wiring direct connection/cross detection unit 1433, for determining whether the on-off condition of the access network line is low.
The network wiring direct connection/cross detection unit 1433 is connected to the network wiring on-off detection unit 1432, and is configured to determine, according to a low-level strong or weak condition, a line condition of a direct connection line or a cross line connected to the network line, and send the line condition to the display for displaying.
Alternatively, as shown in fig. 16, which is a schematic structural diagram of a system 1600 for automatically evaluating network cabling in this embodiment, different from fig. 14, a fiber attenuation tester 1404 includes: a light attenuation sensor calibration unit 1441 and a light attenuation data acquisition unit 1442; wherein,
and the light attenuation sensor calibration unit 1441 is connected with the detection controller 1402 and the light attenuation data acquisition unit 1442, and is configured to output the laser generator in the network wiring and network wiring system to perform light attenuation sensor data calibration.
And the light attenuation data acquisition unit 1442 is connected with the light attenuation sensor calibration unit 1441 and is used for acquiring light attenuation data of network wiring after correcting the data of the light attenuation sensor without errors.
Alternatively, as shown in fig. 17, which is a schematic structural diagram of a system 1700 for automatically evaluating network wiring in this embodiment, unlike fig. 14, the RJ45 terminal color code line order detector 1405 includes: an RJ45 terminal color code sequence detecting unit 1451 and an RJ45 terminal color code sequence adjusting unit 1452; wherein,
the RJ45 terminal color code sequence detecting unit 1451 is connected to the detection controller 1402 and the RJ45 terminal color code sequence adjusting unit 1452, and is configured to call a USB camera in a network wiring and network wiring system, shoot an image of an interface accessed to the RJ45 terminal, compare the image with a preset interface accessed to the RJ45 terminal and an outline image of an access terminal sub-line head, compare the obtained outline with the preset color code sequence to determine the color code sequence of the access terminal line head, and record and upload the determination result to a display for display.
The RJ45 terminal color code sequence adjusting unit 1452 is connected with the RJ45 terminal color code sequence detecting unit 1451 and is used for adjusting focusing, light supplementing and improving image definition according to preset parameters in an image at an interface accessed to the RJ45 terminal if the terminal line head outline cannot be detected, and acquiring the image at the interface accessed to the RJ45 terminal again to detect the terminal line head outline; if still can't obtain clear image, will insert the interface position of RJ45 terminal and upload the display.
Optionally, as shown in fig. 18, a schematic structural diagram of a system 1800 for automatically evaluating network cabling in this embodiment is different from that shown in fig. 14, and further includes: a network wiring test data collection server 1801, connected to the detection controller 1402, for: connecting a system for detecting network wiring with a collection server of network wiring test data; and uploading data detected by the system for detecting the network wiring to a collection server in real time according to the wiring position, the wiring total port information and the information of each detection port for storage.
In some alternative embodiments, as shown in fig. 20 to 24, fig. 20 is a schematic diagram of a principle of a main control circuit and a basic circuit in this embodiment; fig. 21 is a schematic diagram illustrating a principle of using an extended IO chip for port detection in this embodiment; FIG. 22 is a schematic diagram of a power supply circuit according to the present embodiment; fig. 23 is a schematic diagram illustrating a principle of expanding the enable control of the IO chip in this embodiment; fig. 24 is a schematic diagram of a circuit for detecting on/off and attenuation of an optical fiber according to this embodiment. The system consists of four parts which are respectively: the system comprises a core controller, a network cable sequence detection module, an optical fiber on-off and attenuation detection module and a system power supply circuit. The core controller mainly collects and processes input signals, calculates data, stores data information, controls an output module and the like by adopting a chip, and comprises the following working projects: 1. a network cable detection section: firstly, network cables of any port are plugged into the network ports corresponding to the front panel, the IO chip is controlled and expanded through the single chip microcomputer, detection signals are output, the positions of the plugged cables are detected, and then the corresponding network ports detect the line sequences of the plugged cables. 2. An optical fiber detection section: corresponding optical fibers are connected through 6 optical fiber ports of the front panel, one path of the corresponding optical fibers reflects light, the other 5 paths of the corresponding optical fibers are detected, and after the corresponding ports are detected, light attenuation amount detection is carried out. Because the system has high requirement on the efficiency of network cable detection, the MCU needs to have 1) higher processing capacity when selecting the type, 2) low cost, 3) hardware PWM output, 4) multi-path SPI bus and other characteristics. After comprehensive consideration, the system can select the chip meeting the requirements as a core controller, an expanded IO chip is used for detecting a schematic diagram of the port of the network port, and because the detected network cable is more, if the single chip microcomputer is used for measurement, a lot of port resources are needed, so that the expanded IO chip controlled by the SPI bus is selected. Sixteen paths of IO input and output can be controlled through the SPI bus.
The power supply circuit consists of a DC-DC and three-terminal voltage-stabilizing integrated circuit, a capacitor and a diode, and carries out corresponding level conversion on input levels respectively. The working principle is as follows: 12V direct current output by a switching power supply is input into a circuit through an X1 interface and a GND interface in the figure, filtering is carried out through a C12 interface and a C13 interface, firstly, a +5V voltage is generated through an LM2596-5.0, and a To-263 packaging is adopted because the current required by +3.3V is large, and a UZ1085L-33 three-terminal voltage-stabilized integrated circuit with the maximum current parameter of 3A generates a +3.3V voltage for supplying power To a later stage.
The optical fiber on-off and attenuation detection circuit utilizes the single chip microcomputer to output PWM modulation signals, controls the constant current source to enable the light source emitter to emit light, and receives and converts the light into electric signals by the photocell after the light passes through the optical fiber to be detected. The electric signal is filtered and amplified by the operational amplifier and then input into an A/D converter in the singlechip to obtain a light intensity signal, and the optical fiber attenuation parameter is obtained by the ratio of the output light intensity to the received light intensity.
The method and the system for automatically evaluating the network wiring in the embodiment have the following beneficial effects that:
(1) the method and the system for automatically evaluating the network wiring can automatically, quickly and efficiently detect the quality of the network cable, can train related professionals, judge and display a production result of the circuit in real time, and can be used as technical assessment equipment for technicians.
(2) The method and the system for automatically evaluating the network wiring utilize an embedded system and a communication technology to intercommunicate a plurality of groups of network connecting lines, give out the results of line connection quality and line sequence arrangement through logical operation, finish the judgment of line color code line sequence through a visual identification system, and accurately obtain the communication condition in the network line.
(3) The method and the system for automatically evaluating the network wiring in the embodiment can judge the connection and disconnection of the RJ-45 network patch cord manufactured according to the line sequences of TIA/EIA568A and TIA/EIAT568B, judge that the line sequence standard of the network cord is 568A or 568B, identify the module termination color code line sequence corresponding to the TIA/EIA568A and TIA/EIAT568B standards, output the connected color code line sequence to a display graph in real time, judge whether one optical fiber connected with any two ports of the three groups of optical fibers is connected or not, measure and calculate the color attenuation of the optical fiber patch cord, and output a result to a verification tool containing internal circuit connection in the display to detect whether the connectivity of each interface is normal or not, reduce the cost of manual detection, and improve the accuracy of detection.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.