CN211877806U - Optical cable breakpoint detection circuit - Google Patents
Optical cable breakpoint detection circuit Download PDFInfo
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- CN211877806U CN211877806U CN202020687061.0U CN202020687061U CN211877806U CN 211877806 U CN211877806 U CN 211877806U CN 202020687061 U CN202020687061 U CN 202020687061U CN 211877806 U CN211877806 U CN 211877806U
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- 238000001514 detection method Methods 0.000 title claims abstract description 22
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- 238000011897 real-time detection Methods 0.000 claims abstract description 6
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Abstract
The utility model discloses an optical cable breakpoint detection circuit, optical cable movement control circuit makes the optical cable move on the platform through the rotation of control motor, the breakpoint detection circuit of arranging the optical cable upper end in passes through the surface defect of visual detection appearance real-time detection optical cable, send breakpoint treatment circuit application singlechip to according to the surface defect time of accepting, fix a position and report to the police to the optical cable breakpoint, the surface defect time that the singlechip was accepted still revises through correction circuit, correction circuit is through the motor speed real-time detection to control cable removal on the platform, the visual detection appearance mounted position real-time detection of detection optical cable breakpoint, calculate the delay time, the surface defect time that the singlechip will accept subtracts delay time, the optical cable of record of demarcating this time is breakpoint optical cable department, carry out the accuracy of fixing a position with the improvement breakpoint.
Description
Technical Field
The utility model relates to an optical cable technical field, especially an optical cable breakpoint detection circuit.
Background
In the traditional optical cable production and manufacturing, because of the limitation of scientific technology, the breakpoint defect on the surface of the optical cable is still mainly detected by adopting a manual detection method, the method of detecting the breakpoint defect on the surface of the optical cable by naked eyes not only has low speed for the breakpoint defect on the surface of the optical cable, but also easily generates the conditions of misjudgment and missing judgment in the detection process, so that the manual detection efficiency and the precision are low, along with the development of mechanical automation and visual technology, equipment for automatically detecting the breakpoint of the optical cable appears on the market, the optical cable moves on a platform through the rotation of a motor, a visual detector arranged at the upper end of the optical cable detects the surface defect of the optical cable in real time, namely the breakpoint, when the breakpoint exists, the breakpoint is automatically controlled to position the breakpoint and give an alarm, in order to improve the positioning precision, the received breakpoint time is usually corrected by adopting the time obtained by, and calibrating, but the positions of the visual detectors and the rotating speed of the motor are changed due to vibration and the like and due to unstable power supply and long-term working, so that the received breakpoint time after correction is still not accurate enough, and the problem of inaccurate breakpoint positioning is still caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an optical cable breakpoint detection circuit, can revise the breakpoint time of receiving according to the rotational speed and the position of change, improved the accuracy of breakpoint positioning.
The optical cable moving control circuit enables the optical cable to move on the platform through rotation of the control motor, the breakpoint detection circuit arranged at the upper end of the optical cable detects surface defects of the optical cable in real time through the visual detector, the surface defects are transmitted to the breakpoint processing circuit, the breakpoint of the optical cable is positioned and an alarm is given according to the received surface defect time through the single chip microcomputer, and the optical cable positioning device is characterized in that the surface defect time received by the single chip microcomputer is corrected through the correction circuit to improve the accuracy of positioning the breakpoint.
The utility model discloses circuit structure is simple, through the motor speed real-time detection to control optical cable removal on the platform, detects the visual detector mounted position real-time detection of optical cable breakpoint, calculates delay time, and the singlechip subtracts delay time with the surface defect time of accepting, marks the optical cable that records of this time and locates for the breakpoint optical cable to improve the breakpoint and carry out the accuracy of fixing a position.
Drawings
Fig. 1 is a schematic diagram of a correction circuit according to the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
An optical cable breakpoint detection circuit comprises an optical cable movement control circuit, a breakpoint detection circuit and a breakpoint processing circuit, wherein the optical cable movement control circuit enables an optical cable to move on a platform through rotation of a control motor, the breakpoint detection circuit arranged at the upper end of the optical cable detects surface defects of the optical cable in real time through a visual detector, the surface defects are transmitted to the breakpoint processing circuit, a single chip microcomputer is used for positioning and alarming the breakpoint of the optical cable according to received surface defect time, and the surface defect time received by the single chip microcomputer is corrected through a correction circuit so as to improve the accuracy of positioning the breakpoint;
the correction circuit filters a rotating speed signal of a motor detected by a rotating speed sensor through an inductor L1 and a capacitor C1, the rotating speed signal enters an amplitude limiting amplifier consisting of an operational amplifier AR1, a resistor R1-a resistor R3, a voltage stabilizing tube Z1 and a thyristor Z2 which are connected in series, the amplitude limiting amplifier limits the amplitude to 0-5V, then the voltage stabilizing circuit consisting of a triode Q1-a triode Q3, a resistor R3-a resistor R7, a voltage stabilizing tube Z5, a diode D1 and a thyristor VTL1 outputs small fluctuation voltage (less than 0.3V) and large fluctuation voltage (higher than 1V) directly backwards, and under the condition that the calibration is not influenced by the changing speed, the problem that the workload is large because the surface defect time received by a single chip microcomputer is corrected through a correction circuit is solved, (wherein the triode Q1 is a correction tube, the operational amplifier AR2 is a voltage difference amplifier, and the voltage output by a resistor R6 and a resistor R7 are input at the inverting input end, the input of the non-inverting input end is the adjusting tube input voltage collected by the resistor R3 and the regulated voltage of the voltage regulator tube Z5, when the voltage difference output by the operational amplifier AR2 is less than 0.3V, that is, when the emitter voltage of the PNP triode Q2 is higher than the base voltage by 0.7V, the triode Q2 is conducted, the thyristor VTL1 is conducted, the voltage difference enters the adjusting tube, that is, the triode Q1 for regulated output, when the voltage difference is higher than 1V, that is, when the base voltage of the NPN triode Q3 is higher than the emitter voltage by 0.7V, the triode Q3 is conducted, the thyristor VTL2 is conducted, the adjusting tube, that is, the triode Q1 does not work, the signal after the amplified by the limiting amplifier is directly output to the divider IC1, the distance of the platform moving on the optical cable on the platform is filtered by the inductor L2 and the capacitor C2 through the rotation of the visual detector distance motor detected by the displacement, the method comprises the steps of enabling an amplitude limiting amplifier consisting of an operational amplifier AR3, a resistor R8-a resistor R10, a voltage-stabilizing tube Z3 and a voltage-stabilizing tube Z4 which are connected in series to limit the amplitude to be 0-5V, enabling the amplitude to enter a divider IC1 after being buffered by an operational amplifier AR4 follower, enabling a divider IC1 to divide a distance signal and a speed signal to calculate delay time, enabling the delay time to be connected to an I/O port of a single chip microcomputer after being converted by a diode D2 one-way conduction and a photoelectric coupler OP1 signal, calibrating the time by subtracting the delay time from the surface defect time received by the single chip microcomputer, and enabling a measured optical cable to serve as a breakpoint optical cable so as to improve accuracy of positioning of the breakpoint, wherein the breakpoint comprises a rotating speed sensor H1 and a displacement sensor H2, wherein a pin 1 of the rotating speed sensor H1 is connected with a power supply +5V, a pin 3 of the rotating speed sensor H1 is connected with the ground, a, One end of a resistor R1, the other end of the resistor R1 is connected with a non-inverting input end of an operational amplifier AR1, one end of a resistor R2 and the anode of a voltage regulator tube Z1 respectively, an inverting input end of an operational amplifier AR2 is connected with the ground through a resistor R2, an output end of the operational amplifier AR1 is connected with the other end of a resistor R2 and the anode of a voltage regulator tube Z2 respectively, the cathode of a voltage regulator tube Z2 is connected with the cathode of a voltage regulator tube Z1, one end of a resistor R3, the collector of a triode Q3 and the cathode of a thyristor VTL 3 respectively, the emitter of the triode Q3 is connected with the anode of the thyristor VTL 3, one end of the resistor R3 and the pin 6 of a divider IC 3 respectively, the other end of the resistor R3 is connected with the one end of a ground resistor R3 and the inverting input end of the operational amplifier AR3, the non-inverting input end of the operational amplifier AR3 is connected with the cathode of the resistor R3 and the anode of the voltage regulator tube Z3 respectively, The other end of the resistor R1 is connected with one end of a grounding resistor R4, the base of a triode Q2 and the base of a triode Q3 respectively, the emitter of the triode Q2 is connected with +1V, the collector of the triode Q2 is connected with the control electrode of a thyristor VTL1, the cathode of a thyristor VTL1 is connected with the base of a triode Q1, the collector of a triode Q3 is connected with +0.3V, the emitter of the triode Q3 is connected with the control electrode of a thyristor VTL2, pin 1 of a displacement sensor H9 is connected with +5V, pin 3 of a displacement sensor H2 is connected with the ground, pin 2 of the displacement sensor H2 is connected with one end of an inductor L2, the other end of the inductor L2 is connected with one end of a grounding capacitor C2 and one end of a resistor R8 respectively, the other end of the resistor R8 is connected with the non-inverting input end of an operational amplifier AR3, one end of the resistor R3 and the positive electrode of a stabilivolt Z3, the inverting input end of the operational amplifier, the output end of an operational amplifier AR3 is respectively connected with the other end of a resistor R9, the anode of a voltage regulator tube Z4 and one end of a resistor R11, the cathode of a voltage regulator tube Z4 is connected with the cathode of a voltage regulator tube Z3, the other end of the resistor R11 is connected with the non-inverting input end of an operational amplifier AR4, the inverting input end and the output end of the operational amplifier AR4 are connected with a pin 1 of a divider IC1, a pin 7-pin 10 of the divider IC1 is connected with the ground, a pin 2 of the divider IC1 is connected with a power supply +15V, a pin 5 of the divider IC1 is connected with the power supply-15V, a pin 3 of the divider IC1 is connected with an adjustable end of a potentiometer RP1, the lower end of the potentiometer RP1 is connected with the ground, a pin 4 of the divider IC1 is respectively connected with the upper end of the potentiometer RP1 and the anode of a diode D2, the cathode of a diode D2 is connected with a pin 1 of an OP 695OP 2, a pin 2 of, pin 4 of the photoelectric coupler OP1 is connected to one end of a resistor R12 connected to a +5V power supply and a single chip microcomputer respectively.
When the utility model is used, the optical cable moving control circuit makes the optical cable move on the platform by controlling the rotation of the motor, the breakpoint detection circuit arranged at the upper end of the optical cable detects the surface defect of the optical cable in real time through the visual detector, the breakpoint processing circuit is transmitted to the single chip microcomputer to position and alarm the breakpoint of the optical cable according to the received surface defect time, the surface defect time received by the single chip microcomputer is corrected through the correction circuit, concretely, the correction circuit filters the rotating speed signal of the motor detected by the rotating speed sensor, the amplitude of the amplitude limiting amplifier is 0-5V, then the signal enters the voltage stabilizing circuit to stabilize the tiny fluctuating voltage (less than 0.3V) and the larger fluctuating voltage (higher than 1V) and is directly output backwards, the signal is output to the divider IC1 under the condition that the changing speed does not influence the calibration, the surface defect time received by the single chip microcomputer is prevented from being corrected through the correction circuit, the distance between a visual detector detected by a displacement sensor and the optical cable entering side of a platform moving on the platform is enabled to be 0-5V through filtering and amplitude limiting of an amplitude limiting amplifier by the aid of a motor, the optical cable enters a divider IC1 after being buffered by an operational amplifier AR4 follower, the divider IC1 divides a distance signal and a speed signal to calculate delay time, the delay time is calculated and is connected to an I/O port of a single chip microcomputer after being converted by a diode D2 through unidirectional conduction and a photoelectric coupler OP1, the delay time is subtracted from surface defect time received by the single chip microcomputer, the measured optical cable at the time is calibrated to be a breakpoint, and accuracy of positioning the breakpoint is improved.
Claims (2)
1. The utility model provides an optical cable breakpoint detection circuit, includes optical cable movement control circuit, breakpoint detection circuit, breakpoint processing circuit, optical cable movement control circuit makes the optical cable move on the platform through the rotation of control motor, arranges the breakpoint detection circuit of optical cable upper end in and passes through the surface defect of visual detection appearance real-time detection optical cable, sends the breakpoint processing circuit application singlechip and fixes a position the optical cable breakpoint and report to the police according to the surface defect time of accepting to the breakpoint processing circuit application, its characterized in that, the surface defect time that the singlechip was accepted still is revised through correction circuit to improve the accuracy that the breakpoint was fixed a position.
2. The optical cable breakpoint detection circuit according to claim 1, wherein the correction circuit comprises a rotation speed sensor H1 and a displacement sensor H2, pin 1 of the rotation speed sensor H1 is connected with +5V of a power supply, pin 3 of the rotation speed sensor H1 is connected with ground, pin 2 of the rotation speed sensor H1 is connected with one end of an inductor L1, the other end of the inductor L1 is connected with one end of a grounding capacitor C1 and one end of a resistor R1 respectively, the other end of the resistor R1 is connected with a non-inverting input end of an operational amplifier AR1, one end of a resistor R2 and an anode of a voltage regulator tube Z1 respectively, an inverting input end of the operational amplifier AR1 is connected with ground through a resistor R2, an output end of the operational amplifier AR1 is connected with the other end of a resistor R2 and the anode of the voltage regulator tube Z2 respectively, a cathode of the voltage regulator tube Z2 is connected with a cathode of the voltage regulator tube Z1, one end of a resistor R3, a collector of, an emitter of the triode Q1 is respectively connected with an anode of the thyristor VTL2, one end of the resistor R6 and a pin 6 of the divider IC1 through a resistor R20, the other end of the resistor R6 is respectively connected with one end of a grounding resistor R7 and an inverting input end of an operational amplifier AR2, a non-inverting input end of the operational amplifier AR2 is respectively connected with the other end of a resistor R3 and a cathode of a stabilivolt Z5, an anode of the stabilivolt Z5 is connected with ground, an output end of the operational amplifier AR2 is respectively connected with one end of a resistor R5 and an anode of a thyristor VTL1, the other end of the resistor R5 is respectively connected with one end of a grounding resistor R4, a base of the triode Q2 and a base of the triode Q3, an emitter of the triode Q3 is connected with a power supply +1V, a collector of the triode Q3 is connected with a control electrode of the thyristor VTL 3, a cathode of the triode Q3 is connected with a base of the triode Q3, an emitter of the power supply +0, pin 1 of a displacement sensor H2 is connected with +5V of a power supply, pin 3 of a displacement sensor H2 is connected with the ground, pin 2 of the displacement sensor H2 is connected with one end of an inductor L2, the other end of the inductor L2 is respectively connected with one end of a grounded capacitor C2 and one end of a resistor R8, the other end of the resistor R8 is respectively connected with the non-inverting input end of an operational amplifier AR3, one end of a resistor R9 and the anode of a voltage regulator tube Z3, the inverting input end of the operational amplifier AR3 is connected with the ground through a resistor R10, the output end of the operational amplifier AR3 is respectively connected with the other end of a resistor R9, the anode of a voltage regulator tube Z4 and one end of a resistor R11, the cathode of the voltage regulator tube Z4 is connected with the cathode of a voltage regulator tube Z3, the other end of the resistor R11 is connected with the non-inverting input end of an operational amplifier AR4, the inverting input end and the output end, pin 2 of the divider IC1 is connected with +15V of a power supply, pin 5 of the divider IC1 is connected with-15V of the power supply, pin 3 of the divider IC1 is connected with an adjustable end of a potentiometer RP1, the lower end of the potentiometer RP1 is connected with the ground, pin 4 of the divider IC1 is respectively connected with the upper end of the potentiometer RP1 and the anode of a diode D2, the cathode of the diode D2 is connected with pin 1 of a photoelectric coupler OP1, pin 2 of the photoelectric coupler OP1 is connected with the ground, pin 3 of the photoelectric coupler OP1 is connected with the ground through a resistor R13, and pin 4 of the photoelectric coupler OP1 is respectively connected with one end of a resistor R12 of the +5V power supply and a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020687061.0U CN211877806U (en) | 2020-04-29 | 2020-04-29 | Optical cable breakpoint detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020687061.0U CN211877806U (en) | 2020-04-29 | 2020-04-29 | Optical cable breakpoint detection circuit |
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| Publication Number | Publication Date |
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| CN211877806U true CN211877806U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020687061.0U Active CN211877806U (en) | 2020-04-29 | 2020-04-29 | Optical cable breakpoint detection circuit |
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| CN (1) | CN211877806U (en) |
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- 2020-04-29 CN CN202020687061.0U patent/CN211877806U/en active Active
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