Control system for elevator abnormity or fault

Abstract

The invention discloses a base elevator abnormity or fault control system which comprises a monitoring device used for monitoring elevator faults and a control device used for controlling elevator operation, and the monitoring device is connected to the control device. The monitoring device at least comprises a monitor, and the monitor comprises a signal receiving part which is used for obtaining corresponding monitoring signals at least comprising a weight balance system and an electric dragging system when receiving an elevator running operation instruction; the first judgment part is configured to perform preliminary threshold comparison on the monitoring signal and then perform pre-judgment so as to obtain a pre-processed signal subjected to basic pre-judgment; a processing unit having: a correction program; and the processing module comprises a first processor and a second processor, and the running state of the elevator is controlled through dual processing of the first processor and the second processor.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator control, and in particular to a control system for an elevator in the event of an abnormality or failure. Background Art

[0002] Traditional elevator control basically uses the collection of sensor signals from various sensors to make judgments, and controls the elevator by determining whether the sensor signals are deviated. For example, the weight balance system uses the weight sensor or limit sensor installed on the weight balance system to determine whether the elevator car is overloaded or has severe shaking. However, elevator operation control often fails due to misjudgment of the signal sensor (the error is not necessarily caused by sensor failure, but may also be caused by external violent use). Summary of the invention

[0003] In view of this, the object of the present invention is to provide a control system for an elevator in the event of an abnormality or failure, comprising:

[0004] a monitoring device for monitoring elevator failures and a control device for controlling elevator operation, the monitoring device being connected to the control device;

[0005] The monitoring device comprises at least one monitor, and the monitor comprises:

[0006] A signal receiving unit, used for obtaining monitoring signals corresponding to at least a weight balance system and an electric traction system when receiving an elevator operation instruction;

[0007] A first judgment unit, wherein the first judgment unit is configured to make a preliminary threshold comparison on the monitoring signal and then make a pre-judgment to obtain a pre-processed signal after basic pre-judgment;

[0008] A processing unit, the processing unit comprising:

[0009] Correction procedures;

[0010] The processing module includes a first processor and a second processor, and the running state of the elevator is controlled by performing double processing by the first processor and the second processor.

[0011] Furthermore, the weight balancing system is used for:

[0012] Set the balance car deadweight (Ⅰ);

[0013] Obtaining a load monitoring signal formed by detecting the load (II);

[0014] A change signal of the elevator load caused by the change in the length of the pulling wire rope on the car and the counterweight side in the high-rise elevator is obtained, and the balance is compensated by a weight compensation device according to the change signal (III).

[0015] Furthermore, the electric traction system is used to obtain an elevator running speed monitoring signal.

[0016] Furthermore, the first processing module has:

[0017] Logic control unit;

[0018] A program parsing unit, coupled to the logic control unit and the correction program, based on one or more logic rules for program driving set in the logic control unit, and one or more logic rules for program driving are written in the first driver and the second driver;

[0019] A first processing program capable of being controlled and operated by logic rules is generated with the first processor as a carrier; and the first processing program with the first processor as a carrier is configured to perform signal analog conversion on the preprocessed signal and the original monitoring signal respectively under the logic control of the logic rules, and to perform discrete sampling to obtain a number of continuous sampling points during the conversion process, and to perform wide-range abnormality detection and correction according to a set range with the amplitude values ​​of the sampling points obtained by discrete sampling;

[0020] A second processing program that can be controlled and run according to logic rules is generated using the second processor as a carrier; and the second processing program using the second processor as a carrier is configured to generate a waveform signal with timing as a reference from the obtained monitoring signal under the logical control of the logic rules, and perform waveform amplitude detection on the generated waveform signal and then calibrate it with the deviation from the reference threshold as a correction reference.

[0021] Furthermore, the first determination unit has:

[0022] A judgment network composed of a plurality of first judgment units, and a control node coupled to each first judgment unit;

[0023] The control node is used to set the judgment control logic of the control node according to the encoding of the sensor signal, so that the formation signal corresponding to the monitoring signal can be decomposed before the monitoring signal is transmitted to the judgment network, so that the obtained several monitoring signals can be correspondingly transmitted to the first judgment unit, and the preliminary prediction of the sensor signal can be performed by setting the preliminary threshold in the first judgment unit.

[0024] Furthermore, the preliminary prediction refers to:

[0025] Identify and verify the type and source of the sensor signal;

[0026] A wide range of deviation judgment is performed on the sensor signal to determine whether the sensor signal has a large jitter exceeding the set upper limit value, and the cause of the large jitter is determined in combination with the continuity of the timing of the sensor signal.

[0027] Further, the first processing program has a plurality of identical first program blocks;

[0028] The first program block is used to perform the same control on the sensor signal according to the source of the sensor signal.

[0029] Further, the first processing program has a plurality of identical second program blocks;

[0030] The second program block is used to perform the same control on the sensor signal according to the source of the sensor signal.

[0031] When judging the sensor signal of the sensor, the present application goes through two procedures, and the two procedures adopt different judgment methods, which ensures that the sensor signal will not cause the elevator to run incorrectly due to the judgment error of the control system itself.

[0032] Among them, the present application sets a first processor and a second processor in a processing module, the first processor is configured to use the correction program as the processing core of the first processor, and the first processor is internally provided with a first driver for the correction program to perform program analysis, logic control, signal analog conversion, correction comparison and execution, and the correction program is applied by the first driver to form a first deviation value between the preprocessed signal and the original monitoring signal, and the first deviation value is used as the first output; the second processor is configured to use the correction program as the processing core of the second processor, and the second processor is internally provided with a second driver for the correction program to perform program analysis, logic control, signal waveform generation, signal amplitude detection and execution, and the correction program is applied by the second driver to apply waveform amplitude detection to obtain a second deviation value that deviates from the reference threshold value based on the detection result of the monitoring signal, and the second deviation value is used as the second output. It is judged whether the first deviation value corresponding to the first output is within a set range. If so, a first feedback signal is formed. The control device receives the first feedback signal and executes the elevator operation instruction. If not, a buffer program set in the control device is executed. The buffer program is linked to the emergency warning program to perform joint prohibition braking on the electric traction system. At the same time, the control device sends the feedback instruction formed by the joint prohibition braking of the electric traction system to the second accurate judgment unit so that the second accurate judgment unit is actuated. The second accurate judgment unit judges whether the second deviation value corresponding to the second output is within a set range. If so, a second feedback signal is formed. After the control device receives the second feedback signal, it terminates the joint prohibition braking of the electric traction system and executes the elevator operation instruction at the same time. If not, a braking program set in the control device is executed. The braking program performs joint prohibition braking on the electric traction system, and the emergency warning program issues a warning to the weight balance system until the weight balance system recovers the initial balance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is the system framework principle diagram of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1: The present invention provides a control system for an elevator abnormality or failure, characterized in that it comprises: a monitoring device for monitoring elevator failures and a control device for controlling elevator operation, wherein the monitoring device is connected to the control device;

[0036] The monitoring device comprises at least one monitor, and the monitor comprises:

[0037] A signal receiving unit, used for obtaining monitoring signals corresponding to at least a weight balance system and an electric traction system when receiving an elevator operation instruction;

[0038] A first judgment unit, wherein the first judgment unit is configured to make a preliminary threshold comparison on the monitoring signal and then make a pre-judgment to obtain a pre-processed signal after basic pre-judgment;

[0039] A processing unit, the processing unit comprising:

[0040] Correction procedures;

[0041] The processing module includes a first processor and a second processor, and the running state of the elevator is controlled by performing double processing by the first processor and the second processor.

[0042] In the above, the first processor is configured to use the correction program as the processing core of the first processor, and the first processor is internally provided with a first driver for the correction program to perform program analysis, logic control, signal analog conversion, correction comparison and execution, and the correction program uses the first deviation value formed between the preprocessed signal and the original monitoring signal after applying the correction through the first driver, and uses the first deviation value as the first output;

[0043] The second processor is configured to use the correction program as a processing core of the second processor, and the second processor is internally provided with a second driver for performing program analysis, logic control, signal waveform generation, signal amplitude detection and execution of the correction program, and the correction program obtains a second deviation value deviating from a reference threshold value by using the detection result of the monitoring signal after applying waveform amplitude detection through the second driver, and uses the second deviation value as a second output;

[0044] A second determination unit, the second determination unit comprising an interface control module and an execution calibration module;

[0045] The interface control module has an interface controller as a control core to control a first interface and a second interface connected to the first processor and the second processor respectively;

[0046] The execution calibration module comprises a first calibration judgment unit and a second calibration judgment unit, wherein the first calibration judgment unit is connected to the first interface, receives the first output of the first processor from the first interface, judges whether the first deviation value corresponding to the first output is within a set range, and if so, forms a first feedback signal, and the control device receives the first feedback signal and executes the elevator operation instruction; if not, executes the buffer program set in the control device, and the buffer program is linked to the emergency warning program to perform joint prohibition braking on the electric traction system, and at the same time, the control device sends the feedback instruction formed by the joint prohibition braking of the electric traction system to the second calibration judgment unit, so that the second calibration judgment unit is operated, wherein the second calibration judgment unit is connected to the second interface, receives the second output of the second processor from the second interface, judges whether the second deviation value corresponding to the second output is within a set range, and if so, forms a second feedback signal, and the control device terminates the joint prohibition braking of the electric traction system after receiving the second feedback signal, and executes the elevator operation instruction at the same time; if not, executes the braking program set in the control device, and the braking program performs joint prohibition braking on the electric traction system, and the emergency warning program issues a warning to the weight balance system until the weight balance system recovers the initial balance.

[0047] In the above, the weight balancing system is used to:

[0048] Set the balance car deadweight (Ⅰ);

[0049] Obtaining a load monitoring signal formed by detecting the load (II);

[0050] A change signal of the elevator load caused by the change in the length of the pulling wire rope on the car and the counterweight side in the high-rise elevator is obtained, and the balance is compensated by a weight compensation device according to the change signal (III).

[0051] In the above, the electric traction system is used to obtain the elevator running speed monitoring signal.

[0052] In the above, the first processing module has:

[0053] Logic control unit;

[0054] A program parsing unit, coupled to the logic control unit and the correction program, based on one or more logic rules for program driving set in the logic control unit, and one or more logic rules for program driving are written in the first driver and the second driver;

[0055] A first processing program capable of being controlled and operated by logic rules is generated with the first processor as a carrier; and the first processing program with the first processor as a carrier is configured to perform signal analog conversion on the preprocessed signal and the original monitoring signal respectively under the logic control of the logic rules, and to perform discrete sampling to obtain a number of continuous sampling points during the conversion process, and to perform wide-range abnormality detection and correction according to a set range with the amplitude values ​​of the sampling points obtained by discrete sampling;

[0056] A second processing program that can be controlled and run according to logic rules is generated using the second processor as a carrier; and the second processing program using the second processor as a carrier is configured to generate a waveform signal with timing as a reference from the obtained monitoring signal under the logical control of the logic rules, and perform waveform amplitude detection on the generated waveform signal and then calibrate it with the deviation from the reference threshold as a correction reference.

[0057] In the above, the signal receiving unit has:

[0058] The monitoring module is connected to a plurality of sensors, wherein the plurality of sensors are respectively coupled in the weight balance system and the electric traction system; wherein the monitoring module has:

[0059] Monitoring controllers;

[0060] A storage unit disposed inside the monitoring controller, the storage unit being configured to cache the sensing signal transmitted by the sensor and store executable instruction data;

[0061] A reference clock, wherein a timer is provided in the reference clock, each timer is coupled to a configuration unit of a monitoring channel configuration set by a monitoring controller, and is used to provide a reference timing for the monitoring channel;

[0062] A control unit selectively activates one or more timers randomly using a usage state, controls the monitoring channel to enable and receive a sensing signal of the sensor based on the executable instruction data stored in the storage unit, and encodes and caches the sensing signal according to different monitoring channels to the storage unit;

[0063] The communication unit is used to convert the sensor signal obtained by the storage unit and cached in the encoded manner into a monitoring signal for parallel transmission, and transmit it to the judgment unit.

[0064] In the above, the configuration unit has a configuration field with a program as a carrier, and the activation behavior of the corresponding timer under the usage state of the monitoring channel is written into the configuration field.

[0065] In the above, the first determination unit comprises:

[0066] A judgment network composed of a plurality of first judgment units, and a control node coupled to each first judgment unit;

[0067] The control node is used to set the judgment control logic of the control node according to the encoding of the sensor signal, so that the formation signal corresponding to the monitoring signal can be decomposed before the monitoring signal is transmitted to the judgment network, so that the obtained several monitoring signals can be correspondingly transmitted to the first judgment unit, and the preliminary prediction of the sensor signal can be performed by setting the preliminary threshold in the first judgment unit.

[0068] In the above, the preliminary prediction refers to:

[0069] Identify and verify the type and source of the sensor signal;

[0070] A wide range of deviation judgment is performed on the sensor signal to determine whether the sensor signal has a large jitter exceeding the set upper limit value, and the cause of the large jitter is determined in combination with the continuity of the timing of the sensor signal.

[0071] In the above, the first processing program has several identical first program blocks; each of the first program blocks is used to perform the same control on the sensor signal according to the source of the sensor signal. That is to say, the present application sets several first program blocks so that the first program blocks can respectively perform signal analog conversion on the preprocessed signals corresponding to different sensor signals and the original sensor signals that have not been preprocessed under the logical control of the logic rules, and perform discrete sampling to obtain several continuous sampling points during the conversion process, and use the amplitude values ​​of the sampling points obtained by discrete sampling to perform wide-range abnormality detection and correction according to the set range; in the above, each program block is also used to compare the preprocessed signal with the original sensor signal that has not been preprocessed to check whether there is a processing error in the preprocessing stage.

[0072] In the above, the first processing program has a plurality of identical second program blocks; the second program blocks are used to perform the same control on the sensor signal according to the source of the sensor signal. The second program block is used to generate a waveform signal with a timing sequence as a reference from the obtained monitoring signal under the logic control of the logic rule, and perform waveform amplitude detection on the generated waveform signal and perform correction with the deviation from the reference threshold as the correction reference.

[0073] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A control system for elevator abnormality or failure, characterized in that: include: a monitoring device for monitoring elevator failures and a control device for controlling elevator operation, wherein the monitoring device is connected to the control device; The monitoring device includes at least one monitor, and the monitor includes: A signal receiving unit, configured to obtain monitoring signals corresponding to at least a weight balancing system and an electric traction system when receiving an elevator operation instruction; a first judgment unit configured to perform a preliminary threshold comparison on the monitoring signal and then make a pre-judgment to obtain a pre-processed signal that has undergone basic pre-judgment; A processing unit, the processing unit comprising: calibration procedures; The processing module includes a first processor and a second processor, and the operating state of the elevator is controlled by performing dual processing by the first processor and the second processor.

2. The control system for elevator abnormality or failure according to claim 1, characterized in that: The weight balancing system is used to: Set the balance car deadweight (Ⅰ); Obtaining a load monitoring signal (II) formed by detecting the load; A change signal of the elevator load caused by the change in the length of the pulling wire rope on the car and the counterweight side in the high-rise elevator is obtained, and the balance is compensated by a weight compensation device based on the change signal (III).

3. The control system for elevator abnormality or failure according to claim 1, characterized in that: The electric traction system is used to obtain an elevator running speed monitoring signal.

4. The control system for elevator abnormality or failure according to claim 1, characterized in that: The first processing module has: Logic control unit; a program parsing unit coupled to a logic control unit and the correction program, and configured to drive the program based on one or more logic rules set in the logic control unit, wherein the one or more logic rules are written into the first driver and the second driver; A first processing program capable of being controlled and executed according to logic rules is generated using the first processor as a carrier; the first processing program using the first processor as a carrier is configured to perform analog conversion on the preprocessed signal and the original monitoring signal under the logic control of the logic rules, and to perform discrete sampling during the conversion process to obtain a plurality of continuous sampling points, and to perform wide-range anomaly detection and correction according to a set range using the amplitude values ​​of the sampling points obtained by the discrete sampling; Using the second processor as a carrier, a second processing program capable of being controlled and run according to logic rules is generated; The second processing program with the second processor as the carrier is configured to generate a waveform signal with timing as the benchmark from the obtained monitoring signal under the logical control of the logic rules, and perform waveform amplitude detection on the generated waveform signal and then correct it with the deviation from the benchmark threshold as the correction benchmark.

5. The control system for elevator abnormality or failure according to claim 1, characterized in that: The first determination unit includes: A judgment network consisting of a plurality of first judgment units, and a control node coupled to each first judgment unit; The control node is used to set the judgment control logic of the control node according to the encoding of the sensor signal, so that the formation signal corresponding to the monitoring signal can be decomposed before the monitoring signal is transmitted to the judgment network, so that the obtained several monitoring signals can be transmitted to the first judgment unit accordingly, and the preliminary prediction of the sensor signal can be performed by setting the preliminary threshold in the first judgment unit.

6. The control system for elevator abnormality or failure according to claim 5, characterized in that: The preliminary prediction refers to: Identify and verify the type and source of sensor signals; The sensor signal is judged for deviations over a wide range to determine whether the sensor signal has significant jitter exceeding a set upper limit, and the cause of the significant jitter is determined based on the continuity of the sensor signal's timing.

7. The control system for elevator abnormality or failure according to claim 4, characterized in that: The first processing program has a plurality of identical first program blocks; The first program block is used to perform the same control on the sensor signals according to the sources of the sensor signals.

8. The control system for elevator abnormality or failure according to claim 4, characterized in that: The first processing program has a plurality of identical second program blocks; The second program block is used to perform the same control on the sensor signals according to the sources of the sensor signals.

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