CN112379614B - Motor foundation monitoring method and system for subway escalator - Google Patents
Motor foundation monitoring method and system for subway escalator Download PDFInfo
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- CN112379614B CN112379614B CN202011098561.1A CN202011098561A CN112379614B CN 112379614 B CN112379614 B CN 112379614B CN 202011098561 A CN202011098561 A CN 202011098561A CN 112379614 B CN112379614 B CN 112379614B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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- G05B2219/24024—Safety, surveillance
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Abstract
The application relates to a motor foundation monitoring method and system of a subway escalator, which comprises the steps of obtaining real-time position information of a motor foundation when a motor works; based on the original position information of the motor foundation, acquiring a position deviation value of the motor foundation by combining the real-time position information of the motor foundation, wherein the position deviation value is used for describing the position deviation condition of the motor foundation; based on the position deviation error allowable range, judging whether the position of the motor foundation is slightly abnormal or severely abnormal by combining the position deviation value; and if the position of the motor foundation is slightly abnormal, sending a first early warning signal, and if the position of the motor foundation is severely abnormal, sending a stop signal. This application has the effect of being convenient for monitor escalator's motor basis.
Description
Technical Field
The application relates to the technical field of escalator monitoring equipment, in particular to a motor foundation monitoring method and system of a subway escalator.
Background
The subway is a rapid, large-traffic and electric power traction rail transit built in cities, and is a special, high-density and high-traffic urban rail transit system covering various underground and overground roadways in urban areas; escalators are stationary electric drive equipment used to transport passengers up or down between different story heights in a building; the main transmission system of the escalator comprises a motor, a speed reducing device, a brake, an intermediate transmission link and the like; the motor and the speed reducer are both arranged on the motor base, and if the motor base goes wrong, great harm can be caused to the life and property safety of subway passengers.
In the daily operation of subway, subway maintenance staff can regularly overhaul the motor foundation, nevertheless need get into automatic escalator's pit diapire when overhauing, and is narrower and small in the pit diapire, and it is very inconvenient during the inspection, if the condition that appears becoming flexible in the maintenance cycle, also can't in time acquire, the inventor thinks that there is the defect that is not convenient for monitor automatic escalator's motor foundation.
Disclosure of Invention
In order to monitor the motor foundation of the escalator, the application provides a motor foundation monitoring method and system of the subway escalator.
In a first aspect, the application provides a motor foundation monitoring method for a subway escalator, which adopts the following technical scheme: a motor foundation monitoring method of a subway escalator comprises the following steps:
acquiring real-time position information of a motor foundation when the motor works;
based on the original position information of the motor foundation, combining the real-time position information of the motor foundation to obtain a position deviation value of the motor foundation, wherein the position deviation value is used for describing the position deviation condition of the motor foundation;
based on the position deviation error allowable range, judging whether the position of the motor foundation is slightly abnormal or severely abnormal by combining the position deviation value; and the number of the first and second groups,
if the position of the motor foundation is slightly abnormal, a first early warning signal is sent out; and if the position of the motor foundation is seriously abnormal, sending a stop signal.
Through adopting above-mentioned technical scheme, when the motor operation, the motor foundation is probably not hard up, the motor foundation takes place not hard up and can cause the motor foundation to take place the skew, produce the position deviant, judge the position deviant combination motor foundation's position deviant error allowed range after gathering the position deviant, the position deviant error allowed range is that staff summarizes in long-term work and reachs, whether slight anomaly or serious anomaly are distinguished through the position of judging the motor foundation, thereby send first early warning signal or shut down signal, after the staff received first early warning signal or shut down signal, can in time deal with the skew of motor foundation, use this method, the effect on the basis of the automatic escalator motor of being convenient for monitor has.
Preferably, the specific method for determining whether the position of the motor base is slightly abnormal or severely abnormal includes that if the position deviation value is within the position deviation error allowable range, the position deviation value is slightly abnormal, and if the position deviation value is greater than the position deviation error allowable range, the position deviation value is severely abnormal.
By adopting the technical scheme, if the loosening condition of the motor foundation is serious and the safety of the escalator is influenced, a stop signal is sent out, and the escalator is directly stopped; if the motor foundation is loosened and the safety of the escalator cannot be threatened temporarily, an early warning signal is sent out to remind workers to overhaul the motor foundation in time; if the monitoring is normal, the operation is not carried out, and the monitoring is continued; through the scheme, the comparison result is subdivided, a more accurate monitoring result can be provided, and a worker can make a more optimized processing scheme.
Preferably, the monitoring method further comprises,
the method comprises the steps of obtaining a vibration amplitude value and a vibration frequency value of a motor foundation when the motor runs, wherein the vibration amplitude value and the vibration frequency value are both used for describing the vibration condition of the motor foundation;
judging whether the vibration condition of the motor foundation exceeds the vibration allowable range or not based on the vibration allowable range, and if so, judging that the motor foundation is abnormal in operation; and the number of the first and second groups,
and if the basic operation of the motor is abnormal, sending a second early warning signal.
Through adopting above-mentioned technical scheme, in the motor operation in-process, because the vibration of motor itself, the motor foundation is probably taken place to become flexible, take place not hard up back in the motor foundation, the vibration condition on motor foundation also can change, vibration amplitude value and vibration frequency value can describe the vibration condition on motor foundation, the vibration allowed range is the scope that the staff summarized in long-term work, combine the vibration condition on motor foundation, can judge whether the motor foundation takes place unusually, if take place unusually, then send the second early warning signal, combine the position deviant can realize carrying out the effect of comprehensive monitoring to the motor foundation.
In a second aspect, the application provides a motor base monitoring system of a subway escalator, which adopts the following technical scheme: a motor foundation monitoring system of a subway escalator comprises a detection module, a preprocessing module and a control module, wherein the detection module is used for acquiring real-time information of a motor foundation when a motor runs, and the real-time information comprises real-time position information, a vibration frequency value and a vibration amplitude value;
the preprocessing module is connected with the detection module and is used for preprocessing the real-time position information, the vibration amplitude value and the vibration frequency value to generate a monitoring signal;
the control module responds to the monitoring signal and processes the monitoring signal to obtain real-time displacement and real-time vibration of the motor foundation, a judging unit is arranged in the control module and used for judging the real-time displacement and the real-time vibration of the motor foundation, and the control module executes corresponding processing procedures according to different judging results.
By adopting the technical scheme, the motor foundation can generate various real-time information when the motor runs, the detection module acquires the various real-time information and then preprocesses the information through the preprocessing module, the preprocessing module transmits the information to the control module for processing after preprocessing, the judgment unit arranged in the control module can judge and grade the offset of the motor foundation, if one of real-time displacement and real-time vibration of the motor foundation is abnormal, a corresponding processing flow is executed, so that the motor foundation is monitored, and the safety performance of the escalator is improved.
Preferably, the monitoring system comprises a detection module, a preprocessing module and a control module, wherein,
the detection module is connected with the preprocessing module and is used for acquiring real-time information of a motor foundation when the motor runs, and the real-time information comprises real-time position information, a vibration frequency value and a vibration amplitude value;
the preprocessing module is connected with the control module and is used for preprocessing the real-time position information, the vibration amplitude value and the vibration frequency value to generate a monitoring signal;
the control module responds to the monitoring signal and processes the monitoring signal to obtain real-time displacement and real-time vibration of the motor foundation, a judging unit is arranged in the control module and used for judging the real-time displacement and the real-time vibration of the motor foundation, and the control module executes corresponding processing procedures according to different judging results.
By adopting the technical scheme, the detection module is arranged in a pit of the escalator, the detection module detects real-time displacement information and real-time vibration information of a motor foundation and then conveys the real-time displacement information and the real-time vibration information to the processing module, the preprocessing module processes the real-time displacement information and the real-time vibration information and then conveys the processed real-time displacement information and the processed real-time vibration information to the control module, a judgment unit is arranged in the control module, the judgment unit can judge the real-time state of the motor foundation through the real-time displacement information and the real-time vibration information, and the control module sends a corresponding control instruction to control the escalator in response to a judgment result.
Preferably, the detection module includes a bolt sensor, an ultrasonic sensor, and a vibration sensor, wherein,
the bolt sensor is used for detecting the position information of the motor foundation;
the ultrasonic sensor is used for detecting the vibration frequency of the motor foundation;
the vibration sensor is used for detecting the vibration amplitude of the motor foundation.
By adopting the technical scheme, the bolt sensor is arranged between the motor foundation and the bottom wall of the pit, when the motor foundation deviates due to the operation of the motor, the bolt sensor is driven to deform, the bolt sensor can detect the deformation and convert the deformation into an electric signal, and the value of the deviation of the motor foundation relative to the bottom wall of the pit can be obtained through the analysis of the electric signal, so that the position deviation between the motor foundation and the bottom wall of the pit is monitored through the bolt sensor;
when the connection between the motor foundation and the bottom wall of the pit is loosened, the distance between the motor foundation and the bottom wall of the pit can be increased, so that the connection structure is unstable, when the motor runs, the vibration frequency and the vibration amplitude generated when the motor foundation vibrates on the bottom wall of the pit can also change, the ultrasonic sensor can detect the vibration frequency and convert the vibration frequency into electric signal transmission, the vibration sensor can detect the vibration amplitude and convert the vibration amplitude into the electric signal transmission, the real-time vibration condition of the motor foundation can be obtained through the analysis of the two electric signals and the comparison with a normal value, and the effect of monitoring the vibration condition of the motor foundation is achieved;
the multiple sensors can detect the information of the motor foundation at a plurality of angles, so that the motor foundation is comprehensively monitored, the monitoring result is more accurate, and if one of the sensors fails, the monitoring result is not influenced in a short time.
Preferably, the judging unit is configured to compare the real-time position with the allowable range of the position deviation error, and the judging unit is further configured to compare the real-time vibration with the allowable range of the vibration.
By adopting the technical scheme, after the control module analyzes and processes the monitoring signal, the real-time displacement and the real-time vibration of the motor foundation can be obtained, the real-time displacement and the real-time vibration are respectively compared and judged with the deviation error allowable range and the vibration allowable range to obtain the abnormal degree of the motor foundation, the real-time condition of the motor foundation can be obtained visually, and a worker can stop the motor or overhaul the motor foundation according to the judgment result.
Preferably, the preprocessing module comprises:
an A \ D conversion unit: converting the real-time position information, the vibration amplitude value and the vibration frequency value from the analog signal into a digital signal; a noise reduction unit: the A \ D conversion unit is connected with the digital signal processing unit and is used for filtering the digital signal and removing noise in the digital signal;
a transmission unit: the digital signal transmission device comprises a digital channel which is used for connecting the preprocessing module and the control module and can transmit digital signals.
By adopting the technical scheme, the A/D conversion module can convert analog signals detected by a plurality of sensors into digital signals, the digital signals have stronger anti-interference capability than the analog signals, are not easy to interfere in the transmission process, can ensure that information is not easy to distort to a certain extent, and is convenient for the control module to process the digital signals; after the digital signal is transmitted to the noise reduction unit, the noise reduction unit can filter the digital signal, filter noise in the signal and ensure the validity of information to a certain extent; digital channels are used to transmit digital signals.
Preferably, the intelligent alarm system further comprises a terminal module, wherein the input end of the terminal module is connected with the output end of the control module, the terminal module responds to the early warning signal and sends out early warning information to remind a worker, and the terminal module comprises one or more of an LED display terminal, a handheld terminal and a voice terminal.
By adopting the technical scheme, when the abnormal condition of the motor foundation is detected when the motor operates, the control module can transmit the early warning signal to various terminals through the communication protocol, and the terminal module sends the early warning information to remind workers after receiving the early warning signal.
Preferably, a detection circuit is arranged in the bolt sensor, a detection resistor R1 is arranged in the detection circuit, the detection resistor R1 is fixedly arranged in the bolt sensor, an insulating layer for insulating the detection circuit is preset in the bolt sensor, a hall sensor U1 is arranged outside the bolt sensor, the detection resistor R1 is arranged in a magnetic ring of the hall sensor U1 in a penetrating manner and is not abutted against the magnetic ring, and the hall sensor U1 is used for detecting the voltage change condition at two ends of the detection resistor R1.
By adopting the technical scheme, the detection resistor R1 is arranged in the bolt sensor, the bolt sensor is in threaded connection with the bottom wall of the pit, the bolt sensor comprises a bolt shell which is arranged on the bottom plate in a penetrating manner, a threaded hole which is in threaded fit with the bolt shell is formed in the bottom plate, an installation groove is formed in the bolt shell, the insulation layer is arranged on the side wall of the installation groove, the detection resistor R1 is arranged in the insulation layer, and a power supply is also arranged in the bolt shell; the Hall sensor U1 is arranged on a bottom plate of the motor foundation, a magnetic ring of the Hall sensor U1 surrounds the circumference of the bolt shell, when the connection between the bolt sensor and the bottom wall of the pit is loosened, the detection resistor R1 is lengthened, the cross-sectional area of the detection resistor R1 is reduced, the resistance value of the detection resistor R1 is increased, and the voltage at two ends of the detection resistor R1 is changed; hall sensor U1 can detect the size of voltage and export the testing result, can compare with the predetermined value after control module receives the value of voltage to judge whether deformation takes place for detection resistor R1, thereby realize through the not hard up condition of being connected between bolt sensor monitoring motor foundation's bottom plate and the pit diapire.
In a third aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions: a computer readable storage medium storing a computer program capable of being loaded by a processor and performing any of the methods of the first aspect.
In summary, the present application includes at least one of the following beneficial technical effects: 1. the method and the device have the advantages that the effect of comprehensively monitoring the motor foundation of the escalator is realized by acquiring various real-time information on the motor foundation during the operation of the motor, including the position deviation value of the motor foundation, the vibration amplitude information of the motor foundation and the vibration frequency information of the motor foundation and analyzing the information;
2. when the position deviation value of the motor base is judged, the deviation amount is graded, when the position deviation value is in different grades, different operations are executed to control the escalator, the comparison result is subdivided, a more accurate monitoring result can be provided, so that a worker can make a more optimized processing scheme, and the escalator can be more flexibly controlled according to the detection result;
3. this application is through setting up the bolt sensor between pit diapire and bottom plate, when the bolt sensor takes place not hard up with being connected between the pit diapire, can monitor the not hard up condition of being connected between motor foundation's bottom plate and the pit diapire through the bolt sensor.
Drawings
FIG. 1 is a schematic structural diagram of a motor foundation according to an embodiment of the present application;
fig. 2 is a first flowchart of a motor base monitoring method of a subway escalator according to an embodiment of the present disclosure;
fig. 3 is a second flowchart of a motor base monitoring method of a subway escalator according to an embodiment of the present disclosure;
FIG. 4 is a block diagram of a monitoring system according to one embodiment of the present application;
FIG. 5 is a schematic diagram of an external structure of a bolt sensor according to an embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of a bolt sensor according to one embodiment of the present application;
FIG. 7 is a schematic diagram of an internal circuit configuration of a bolt sensor according to an embodiment of the present application;
fig. 8 is a schematic circuit diagram of a hall sensor according to an embodiment of the present application.
Description of reference numerals: 1. a detection module; 11. a bolt sensor; 111. a bolt housing; 112. mounting grooves; 113. a groove; 114. a button cell; 115. an end cap; 116. a magnetic ring; 12. an ultrasonic sensor; 13. a vibration sensor; 2. a preprocessing module; 21. an A \ D conversion unit; 22. a noise reduction unit; 23. a transmission unit; 3. a control module; 31. a judgment unit; 4. a terminal module; 41. an LED display terminal; 42. a handheld terminal; 43. a voice terminal; 5. a motor foundation; 51. a base plate; 52. a motor; 53. a speed reducer; 54. a bolt; 6. the bottom wall of the well.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, motor foundation 5 sets up in escalator's well bottom wall 6, it includes bottom plate 51, bottom plate 51 and well bottom wall 6 butt, be provided with equipment such as motor 52 and reduction gear 53 that are used for driving escalator operation on the bottom plate 51, bottom plate 51 is connected with well bottom wall 6 through a plurality of bolts 54, when motor 52 operates, can produce great vibration, the vibration can make the bolt 54 of connecting usefulness take place not hard up or warp, thereby lead to being connected between reduction gear 53 and the bottom plate 51, it is not hard up to appear being connected between bottom plate 51 and the well bottom wall 6, if do not handle for a long time, finally can lead to motor foundation 5 to drop, thereby cause great incident.
The embodiment of the application discloses a motor foundation monitoring method of a subway escalator, and with reference to fig. 2, the monitoring method comprises the following steps of 101, acquiring real-time position information of a motor foundation when a motor works.
102. And acquiring a position deviation value of the motor foundation by combining the real-time position information of the motor foundation based on the original position information of the motor foundation, wherein the position deviation value is used for describing the position deviation condition of the motor foundation.
Wherein the position deviation value is a displacement generated by the real-time position of the motor base relative to the original position of the motor base.
103. And judging whether the position of the motor base is slightly abnormal or severely abnormal or not by combining the position deviation value based on the position deviation error allowable range.
The allowable range of the position deviation error is a range summarized by the maintainers of the escalator according to work experience in long-term work, and the influence of the size of the position deviation value on the escalator can be accurately judged.
104. If the position of the motor foundation is slightly abnormal, a first early warning signal is sent out; wherein, slight unusual in error allowed range, can only early warning, follow-up overhaul again.
105. And if the position of the motor foundation is seriously abnormal, sending a stop signal.
Wherein, severe abnormity indicates that the condition is serious, and shutdown is needed to ensure the property safety of people.
In the embodiment of the monitoring method, the real-time position of the motor foundation is obtained and compared with the original position of the motor foundation to obtain the position deviation value of the motor foundation, the abnormal degree of the position deviation value of the motor foundation is judged according to the error allowable range of the position deviation, if the difference between the position deviation value and the normal value is small and the error allowable range is within the error allowable range, a first early warning signal is sent, and if the difference exceeds the error allowable range and the error allowable range is within the error allowable range, a shutdown signal is sent.
Referring to fig. 2, a specific method for determining whether the position of the motor base is slightly abnormal or severely abnormal includes 1031, if the position deviation value is within the allowable range of the position deviation error, determining that the position deviation value is slightly abnormal.
If the position deviation value is still within the deviation error allowable range, the generated position deviation is shown not to influence the safety of the escalator, but a certain deviation is generated, and in order to ensure the normal operation of the escalator, the slight abnormality is judged, a worker is reminded to overhaul the escalator in the shutdown time of the escalator, and the safety performance of the escalator is ensured to a certain extent.
1032. If the deviation value is larger than the allowable range of the position deviation error, the abnormal condition is serious.
If the position deviation value exceeds the error allowable range, the situation that the safety of the escalator is threatened by the displacement generated on the basis of the motor is shown, and in order to ensure the safety of passengers, the situation that the escalator is seriously abnormal is judged, and a stop signal is sent out.
Referring to fig. 3, the monitoring method further includes: 201. obtaining a vibration amplitude value and a vibration frequency value of a motor foundation when the motor runs, wherein the vibration amplitude value and the vibration frequency value are both used for describing the vibration condition of the motor foundation;
wherein, the vibration amplitude value and the vibration frequency value or the combination of the two can be used to describe the vibration condition of the motor base.
202. Judging whether the vibration condition of the motor foundation exceeds the vibration allowable range or not based on the vibration allowable range, and if so, judging that the motor foundation is abnormal in operation; and obtaining the vibration allowable range according to the historical data of the basic vibration condition of the motor when the motor normally operates.
203. And if the basic operation of the motor is abnormal, sending a second early warning signal.
When the escalator operates, the rotation of motor can make the motor basis take place the vibration, if the motor basis takes place to become flexible, then the vibration that the motor basis produced when the motor operates also can change, the vibration condition can be described through vibration amplitude and vibration frequency, if the motor basis vibration condition has surpassed the vibration allowed range, explain that the operation on motor basis takes place unusually, then send second early warning signal, to the staff early warning, in order to remind the staff to overhaul the motor basis, through monitoring the vibration condition and the position offset condition on motor basis, can realize the comprehensive monitoring to the motor basis, if one of them monitoring device goes wrong, also can not influence the monitoring result in the short time.
The embodiment of the application also discloses a motor basis monitored control system of subway automatic escalator, refer to fig. 4, include: the motor vibration detection device comprises a detection module 1, a preprocessing module 2 and a control module 3, wherein the detection module 1 is connected with the preprocessing module 2, the detection module 1 is used for acquiring real-time information of a motor base when a motor runs, the real-time information comprises real-time position information, a vibration frequency value and a vibration amplitude value, and after the real-time information of the motor base is detected by a plurality of sensors, the real-time information is transmitted to the preprocessing module 2 for preprocessing.
The preprocessing module 2 is connected with the control module 3, the preprocessing module 2 is used for preprocessing the real-time position information, the vibration amplitude value and the vibration frequency value to generate a monitoring signal, and the preprocessing module 2 can be an escalator controller.
The control module 3 responds to the monitoring signal and processes the monitoring signal to obtain real-time displacement and real-time vibration of the motor foundation, a judging unit 31 is arranged in the control module 3, a position deviation error allowable range value and a vibration allowable range value are preset in the judging unit 31, the judging unit 31 judges the real-time displacement and the real-time vibration of the motor foundation based on the position deviation error allowable range and the vibration allowable range, the control module 3 executes corresponding processing procedures according to different judging results, the corresponding procedures comprise early warning and stopping, if the motor foundation is seriously loosened, the motor foundation is stopped, if the motor foundation is loosened and still in the operation allowable range, the motor foundation is early warned firstly, and then the motor foundation is maintained; the control module 3 can be a subway comprehensive control center, and workers can change the operation of the escalator through manual operation and can also operate the escalator through a preset flow.
Referring to fig. 4, the detection module 1 includes a bolt sensor, an ultrasonic sensor 12 and a vibration sensor 13, wherein the bolt sensor is used for detecting the position information of the motor foundation, when the motor operates to cause the motor foundation to shift or deform, the bolt sensor 11 is driven to deform, the bolt sensor 11 can detect the shift or deform and convert the shift or deform into an electrical signal, the value of the motor foundation shifting or deforming relative to the bottom wall of the foundation pit can be obtained through analyzing the electrical signal, and therefore the shift or deformation between the motor foundation and the bottom wall of the foundation pit can be monitored through the bolt sensor 11.
Referring to fig. 4, the ultrasonic sensor 12 is used to detect the vibration frequency of the motor base, the ultrasonic sensor 12 applies the doppler effect, when the connection between the motor base and the bottom wall of the pit is loosened, the vibration frequency of the motor base vibration generated by the operation of the motor changes, and the ultrasonic sensor 12 can detect the real-time vibration frequency and transmit the real-time vibration frequency to the preprocessing module 2.
Referring to fig. 4, the vibration sensor 13 is used for detecting the vibration amplitude of the motor foundation, when the connection between the motor foundation and the bottom wall of the pit is loosened, the vibration amplitude of the motor foundation vibration generated by the operation of the motor changes, and the vibration sensor 13 detects the change of the vibration amplitude and transmits the change of the vibration amplitude to the preprocessing module 2.
Referring to fig. 4, the preprocessing module 2 includes an a \ D conversion unit for converting real-time information generated by the motor base when the motor operates from an analog signal to a digital signal; the noise reduction unit 22 is connected with the A \ D conversion unit and is used for filtering the digital signals and removing noise in the digital signals; the transmission unit 23 is a digital channel, which is used for connecting the preprocessing module 2 and the control module 3 and can transmit digital signals.
Referring to fig. 4, still include terminal module 4, terminal module 4's input is connected with control module 3's output, terminal module 4 responds to early warning signal and sends out early warning information in order to remind the staff, terminal module 4 includes one or more in LED display terminal 41, handheld terminal 42, pronunciation terminal 43, in daily work, if monitor that the motor basis appears unusually, subway integrated control center accessible sets up at subway station LED screen, the staff is reminded to broadcasting or staff's intercom etc. arouse the staff's attention, arrange subsequent maintenance work.
Referring to fig. 5 and 6, the bolt sensor 11 includes a bolt housing 111 penetrating through a bottom plate, a threaded hole (not labeled) is formed in the bottom plate and is in threaded fit with the bolt housing 111, an installation groove 112 is formed in the bolt housing 111, and an insulation layer is disposed on a side wall of the installation groove 112.
Referring to fig. 6 and 7, a detection circuit is disposed in the bolt housing 111, the detection circuit includes a detection resistor R1, a first power supply BAT and an LED lamp L1, the detection resistor R1 is disposed in the mounting groove 112 and abuts against a side wall of the mounting groove 112, and a groove 113 is formed at a top end of the bolt housing 111; the bolt shell 111 is further provided with an end cover 115 for plugging the groove 113, the end cover 115 is in threaded fit with the groove 113, the first power supply BAT is arranged in the groove 113, and the first power supply BAT can be a button battery 114; the LED lamp is arranged on the end cover 115, the detection resistor R1 is connected with one end of the LED lamp L1, the other end of the LED lamp L1 is connected with the negative electrode of the first power supply BAT, the other end of the detection resistor R1 is connected with the positive electrode of the first power supply BAT, and when the LED lamp L1 is bright, the bolt sensor 11 is in a normal working state.
Referring to fig. 5 and 8, a hall sensor U1 and an induction circuit are arranged in the bottom plate, a cavity (not labeled in the figure) is arranged in the bottom plate 51 and is located at two sides of the threaded hole, a magnetic ring 116 of a hall sensor U1 is arranged in the cavity, an output end of the hall sensor U1 is connected with the induction circuit, a detection resistor R1 is arranged in the magnetic ring 116 of the hall sensor U1 in a penetrating manner and is not abutted to the magnetic ring 116 of the hall sensor U1, when the connection between the bolt sensor 11 and the pit bottom wall 6 is loosened, the detection resistor R1 is lengthened, the resistance value of the detection resistor R1 is changed to change the voltages at two ends of the detection resistor R1, and the hall sensor U1 is used for detecting the voltage change condition of the hall sensor U1.
Referring to fig. 8, the sensing circuit includes an operational amplifier U2, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5; one end of the second resistor R2 is connected with the non-inverting input end of the operational amplifier U2, and the other end of the second resistor R2 is connected with one pin of the Hall sensor U1; one end of the third resistor R3 is connected with the non-inverting input end of the operational amplifier U2, and the other end of the third resistor R3 is connected with the other pin of the Hall sensor U1; one end of the fourth resistor R4 is connected with the output end of the operational amplifier U2, and the other end is connected with the non-inverting input end of the operational amplifier U2; one end of the fifth resistor R5 is connected with the inverting input end of the operational amplifier U2, and the other end is grounded; a power supply input pin of the operational amplifier U2 is connected with a second power supply VCC; the output end of the operational amplifier U2 is connected with an escalator controller, and the output of the Hall sensor U1 is transmitted to a subway comprehensive control center through the escalator controller.
The embodiment of the application also discloses a computer readable storage medium which stores a program capable of being loaded by the processor and executing the motor basic monitoring method.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a subway escalator's basic monitored control system of motor which characterized in that: comprises a detection module, a preprocessing module and a control module, wherein,
the detection module is used for acquiring real-time information of a motor foundation when the motor runs, and the real-time information comprises real-time position information, a vibration frequency value and a vibration amplitude value;
the preprocessing module is connected with the detection module and is used for preprocessing the real-time position information, the vibration amplitude value and the vibration frequency value to generate a monitoring signal;
the control module responds to the monitoring signal and processes the monitoring signal to obtain real-time displacement and real-time vibration of the motor foundation, a judging unit is arranged in the control module and used for judging the real-time displacement and the real-time vibration of the motor foundation, and the control module executes corresponding processing procedures according to different judging results;
the detection module comprises a bolt sensor, and the bolt sensor is used for detecting the position information of the motor foundation;
the bolt sensor is internally provided with a detection circuit, the detection circuit is internally provided with a detection resistor R1, the detection resistor R1 is fixedly arranged in the bolt sensor, an insulating layer for insulating the detection circuit is preset in the bolt sensor, the bolt sensor is externally provided with a Hall sensor U1, the detection resistor R1 is arranged in a magnetic ring of the Hall sensor U1 in a penetrating mode and is not abutted to the magnetic ring, and the Hall sensor U1 is used for detecting the voltage change condition of two ends of the detection resistor R1.
2. The motor base monitoring system of the subway escalator as claimed in claim 1, wherein: the detection module comprises an ultrasonic sensor and a vibration sensor, wherein,
the ultrasonic sensor is used for detecting the vibration frequency of the motor foundation;
the vibration sensor is used for detecting the vibration amplitude of the motor foundation.
3. The motor base monitoring system of the subway escalator as claimed in claim 2, wherein: the judging unit is used for comparing the real-time position with the position deviation error allowable range, and the judging unit is also used for comparing the real-time vibration with the vibration allowable range.
4. The motor base monitoring system of a subway escalator as claimed in claim 3, wherein said preprocessing module comprises:
an A \ D conversion unit: converting the real-time position information, the vibration amplitude value and the vibration frequency value from the analog signal into a digital signal;
a noise reduction unit: the A \ D conversion unit is connected with the digital signal processing unit and is used for filtering the digital signal and removing noise in the digital signal;
a transmission unit: the digital signal transmission device comprises a digital channel which is used for connecting the preprocessing module and the control module and can transmit digital signals.
5. The motor base monitoring system of the subway escalator as claimed in claim 3, wherein: the intelligent warning system is characterized by further comprising a terminal module, wherein the input end of the terminal module is connected with the output end of the control module, the terminal module responds to the warning signal and sends out warning information to remind workers, and the terminal module comprises one or more of an LED display terminal, a handheld terminal and a voice terminal.
6. A motor base monitoring method of a subway escalator, applied to the motor base monitoring system of the subway escalator as claimed in any one of claims 1 to 5, characterized in that:
acquiring real-time position information of a motor foundation when the motor works;
based on the original position information of the motor foundation, combining the real-time position information of the motor foundation to obtain a position deviation value of the motor foundation, wherein the position deviation value is used for describing the position deviation condition of the motor foundation;
based on the position deviation error allowable range, judging whether the position of the motor foundation is slightly abnormal or severely abnormal by combining the position deviation value; and the number of the first and second groups,
if the position of the motor foundation is slightly abnormal, a first early warning signal is sent out;
if the position of the motor foundation is seriously abnormal, sending a stop signal;
the specific method for judging whether the position of the motor base is slightly abnormal or severely abnormal comprises the following steps,
if the position deviation value is within the allowable range of the position deviation error, the abnormality is slight abnormality, and if the deviation value is greater than the allowable range of the position deviation error, the abnormality is severe abnormality.
7. The motor base monitoring method of the subway escalator as claimed in claim 6, wherein said method comprises the steps of: the monitoring method may further comprise the step of,
the method comprises the steps of obtaining a vibration amplitude value and a vibration frequency value of a motor foundation when the motor runs, wherein the vibration amplitude value and the vibration frequency value are both used for describing the vibration condition of the motor foundation;
judging whether the vibration condition of the motor foundation exceeds the vibration allowable range or not based on the vibration allowable range, and if so, judging that the motor foundation is abnormal in operation; and the number of the first and second groups,
and if the basic operation of the motor is abnormal, sending a second early warning signal.
8. A computer-readable storage medium, in which a computer program is stored which can be loaded by a processor and which executes the method of any one of claims 6 to 7.
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