CN113959630A - Differential pressure detection method and system for preventing misoperation - Google Patents
Differential pressure detection method and system for preventing misoperation Download PDFInfo
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
- G01L13/06—Devices or apparatus for measuring differences of two or more fluid pressure values using electric or magnetic pressure-sensitive elements
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Abstract
The invention discloses a differential pressure detection method and a differential pressure detection system for preventing misoperation, which are applied to a differential pressure detection system, wherein the system comprises a control unit, a fan unit and a detection unit; the method comprises the following steps: periodically acquiring current detection values by a detection unit, wherein the detection values comprise a differential pressure detection value and a differential pressure switch signal value; judging by the control unit according to the detection value to determine an output mode of a differential pressure system connected with the control unit; controlling the fan to act by the fan unit according to the output mode; the effect is as follows: by comprehensively processing the detection values of the differential pressure sensor and the differential pressure switch, the probability of failure of two passages or two sensors is far less than that of failure of one of the sensors, so that the safety of the air film equipment is greatly improved, and the condition of error actions is reduced.
Description
Technical Field
The invention relates to the technical field of pressure detection, in particular to a differential pressure detection method and system for preventing misoperation.
Background
In the air film industry, air film differential pressure monitoring is often carried out, in the prior art, the air film differential pressure monitoring completely depends on the data value of a differential pressure sensor for relevant control, if the pressure sensor has relevant faults, or a pressure measuring channel is blocked, or a single differential pressure switch has faults, or the pressure measuring channel has faults, a fan can act according to the single differential pressure sensor or the single differential pressure switch, and therefore wrong actions can be possibly caused. For example:
when the analog pressure difference sensor is blocked in a passage or the analog pressure difference sensor breaks down, the measured pressure is too high (actually not high), the system can cut off the fan, and wrong actions occur.
When the analog quantity pressure difference sensor is blocked in a channel or the analog quantity pressure difference sensor breaks down, the measured pressure is too low (actually not low), and the system can increase the fan or increase the rotating speed of the fan; a false action occurs.
When the passage of the differential pressure switch is blocked or the differential pressure switch breaks down, the measured pressure is too high (actually not high), the system can cut off the fan, and wrong actions occur.
Disclosure of Invention
An embodiment of the present invention provides a differential pressure detection method and system for preventing a malfunction, so as to solve the defect in the prior art that a malfunction may be caused when a data value of a differential pressure sensor is completely relied on for performing a relevant control.
In a first aspect: the embodiment of the invention provides a differential pressure detection method for preventing misoperation, which is applied to a differential pressure detection system, wherein the system comprises a control unit, a fan unit and a detection unit arranged on a detection path; wherein, the detecting element includes differential pressure sensor and differential pressure switch, differential pressure switch includes high pressure detection differential pressure switch and low pressure detection differential pressure switch, the method includes:
the detection unit periodically acquires a current detection value, wherein the detection value comprises a differential pressure detection value and a differential pressure switch signal value, and the differential pressure switch signal value comprises a high-voltage detection differential pressure switch input and a low-voltage detection differential pressure switch input;
judging by the control unit according to the detection value to determine an output mode of a differential pressure system connected with the control unit; the output mode comprises a high-pressure output of a differential pressure system, a low-pressure output of the differential pressure system, a normal output of the differential pressure system and a fault output of the differential pressure system;
and controlling the fan to act by the fan unit according to the output mode.
As a preferred technical solution of the present invention, the determining, by the control unit, an output mode of the differential pressure system connected thereto according to the detection value specifically includes:
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value reaches the high-level threshold value, the output mode is high-pressure output;
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value does not reach the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the high-level threshold value, and the differential pressure detection value reaches the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch reaches the low level threshold value and the differential pressure detection value reaches the low level threshold value, the output mode is low-voltage output;
if the signal value of the differential pressure switch reaches the low-level threshold value and the differential pressure detection value does not reach the low-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the low level threshold value, and the differential pressure detection value reaches the low level threshold value, the output mode is fault output.
As a preferred embodiment of the present invention, the method further comprises:
before the fault output, time delay processing is carried out to judge whether the time reaching the correspondingly set high-level threshold value or low-level threshold value exceeds the set time, and if not, the fault output is not carried out.
As a preferred technical solution of the present invention, when the differential pressure switch signal value reaches a high level threshold value, the input of the high voltage detection differential pressure switch is a high level; and when the signal value of the differential pressure switch reaches a low threshold value, the input of the low-voltage detection differential pressure switch is a high level.
In a second aspect: the embodiment of the invention provides a differential pressure detection system for preventing misoperation, which comprises a control unit, a fan unit and a detection unit arranged on a detection path, wherein the control unit is used for controlling the fan unit to operate; the detection unit comprises a differential pressure sensor and a differential pressure switch, and the differential pressure switch comprises a high-voltage detection differential pressure switch and a low-voltage detection differential pressure switch;
the detection unit is used for periodically acquiring a current detection value, the detection value comprises a differential pressure detection value and a differential pressure switch signal value, and the differential pressure switch signal value comprises a high-voltage detection differential pressure switch input and a low-voltage detection differential pressure switch input;
the control unit is used for:
judging by the control unit according to the detection value to determine an output mode of a differential pressure system connected with the control unit; the output mode comprises a high-pressure output of a differential pressure system, a low-pressure output of the differential pressure system, a normal output of the differential pressure system and a fault output of the differential pressure system;
and the fan unit is used for controlling the fan to act according to the output mode.
As a preferred technical solution of the present invention, the determining, by the control unit, an output mode of the differential pressure system connected thereto according to the detection value specifically includes:
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value reaches the high-level threshold value, the output mode is high-pressure output;
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value does not reach the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the high-level threshold value, and the differential pressure detection value reaches the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch reaches the low level threshold value and the differential pressure detection value reaches the low level threshold value, the output mode is low-voltage output;
if the signal value of the differential pressure switch reaches the low-level threshold value and the differential pressure detection value does not reach the low-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the low level threshold value, and the differential pressure detection value reaches the low level threshold value, the output mode is fault output.
As a preferred technical solution of the present invention, the system further includes a delay unit, and the delay unit is configured to:
before the fault output, time delay processing is carried out to judge whether the time reaching the correspondingly set high-level threshold value or low-level threshold value exceeds the set time, and if not, the fault output is not carried out.
As a preferred technical solution of the present invention, when the differential pressure switch signal value reaches a high level threshold value, the input of the high voltage detection differential pressure switch is a high level; and when the signal value of the differential pressure switch reaches a low threshold value, the input of the low-voltage detection differential pressure switch is a high level.
By adopting the technical scheme, the method has the following advantages: according to the differential pressure detection method and system for preventing misoperation, detection values of the differential pressure sensor and the differential pressure switch are comprehensively processed, and the probability that two paths or two sensors fail simultaneously is far smaller than the probability that one sensor fails, so that when a fault occurs, the differential pressure detection method and system work according to a fault output mode, safety is guaranteed, time is won for related maintenance and adjustment, no serious result is guaranteed, and safety of air film equipment is improved.
Drawings
Fig. 1 is a flowchart of a differential pressure detection method for preventing malfunction according to an embodiment of the present invention;
fig. 2 is a schematic diagram of signal transmission according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating the control unit performing the determination according to the detected value according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a differential pressure detection system for preventing a malfunction according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific examples, which are used for illustrating the present invention and are not intended to limit the scope of the present invention.
Referring to fig. 1, a differential pressure detection method for preventing a malfunction according to an embodiment of the present invention is applied to a differential pressure detection system, and the system includes a control unit, a fan unit, and a detection unit disposed on a detection path; wherein, the detecting element includes differential pressure sensor and differential pressure switch, differential pressure switch includes high pressure detection differential pressure switch and low pressure detection differential pressure switch, the method includes:
and S101, periodically acquiring a current detection value by the detection unit, wherein the detection value comprises a differential pressure detection value and a differential pressure switch signal value, and the differential pressure switch signal value comprises a high-pressure detection differential pressure switch input (namely, a differential pressure switch high threshold value input) and a low-pressure detection differential pressure switch input (namely, a differential pressure switch low threshold value input).
Specifically, the analog quantity sensor is collectively referred to as the differential pressure sensor, the switching quantity sensor is collectively referred to as the differential pressure switch, a combination of the high-voltage detection differential pressure switch and the low-voltage detection differential pressure switch is adopted, and the number of the high-voltage detection differential pressure switch and the low-voltage detection differential pressure switch is plural, which is not limited herein; the detection path is a corresponding pressure measuring passage.
S102, judging according to the detection value through the control unit to determine an output mode of a differential pressure system connected with the control unit; the output mode comprises a high-pressure output of the differential pressure system, a low-pressure output of the differential pressure system, a normal output of the differential pressure system and a fault output of the differential pressure system.
Specifically, referring to fig. 2 and 3, the control unit comprises a corresponding controller and a pressure difference system for outputting corresponding logical operations;
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value reaches the high-level threshold value, the output mode is high-pressure output;
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value does not reach the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the high-level threshold value, and the differential pressure detection value reaches the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch reaches the low level threshold value and the differential pressure detection value reaches the low level threshold value, the output mode is low-voltage output;
if the signal value of the differential pressure switch reaches the low-level threshold value and the differential pressure detection value does not reach the low-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the low level threshold value, and the differential pressure detection value reaches the low level threshold value, the output mode is fault output.
It should be noted that, when the differential pressure switch signal value reaches the high level threshold value, that is, the input of the high-voltage detection differential pressure switch is at a high level, that is, "whether the differential pressure switch reaches the high threshold value" in fig. 3, and "yes" indicates that the input of the high-voltage detection differential pressure switch is at a high level; if not, the input of the high-voltage detection differential pressure switch is low level; when the signal value of the differential pressure switch reaches the low threshold value, the input of the low-voltage detection differential pressure switch is at a high level, namely, whether the differential pressure switch reaches the low threshold value or not in fig. 3 is judged, and if yes, the input of the low-voltage detection differential pressure switch is at a high level; if not, the input of the low-voltage detection differential pressure switch is low level; accordingly, the high pressure output has the same meaning as the high limit output in fig. 3, and the low pressure output has the same meaning as the low limit output in fig. 3.
Therefore, when only one of the differential pressure switch signal value and the differential pressure detection value reaches the corresponding high-level threshold value or low-level threshold value, the output mode is fault output; correspondingly, when the differential pressure switch signal value and the differential pressure detection value do not reach the corresponding high-level threshold value or low-level threshold value, the output mode is normal output. Thus, the detection values of the differential pressure sensor and the differential pressure switch are comprehensively processed, and if a single passage or one sensor fails, the fault output is carried out.
And S103, controlling the fan to act by the fan unit according to the output mode.
Specifically, the fan unit comprises a plurality of fans, when the output mode is fault output, the fault operation mode of the fan unit is activated, the fan unit operates at an intermediate rotating speed and activates intermediate-speed constant-speed operation, at the moment, although the pressure of the air film is inaccurate, the air film can be ensured not to be too high or too low when the pressure difference system is in fault, the safety can be ensured, time is won for related maintenance and adjustment, and no serious consequence is generated;
correspondingly, when the high pressure is output, in order to prevent the air film from generating high pressure, the fan is stopped or the speed is reduced to protect the operation;
when the low pressure is output, the number of the fans is increased or the operation is accelerated, the pressure is increased as much as possible, and the structure of the protective air film is stable.
And when the output is normal, the operation is carried out according to a normal program.
When the method is applied, due to the abnormal situation caused by transient data or short-time sudden change, in order to avoid too frequent actions and reduce the false action, the method further comprises the following steps:
before fault output, time delay processing is carried out to judge whether the time reaching the correspondingly set high-level threshold value or low-level threshold value exceeds the set time, and if not, fault output is not carried out; and correspondingly, if the set time is exceeded, fault output is carried out.
Through the scheme, the detection values of the differential pressure sensor and the differential pressure switch are comprehensively processed, and the probability that two paths or two sensors fail simultaneously is far less than that of one sensor, so that the sensor works according to a failure output mode when the sensor fails, the safety is ensured, the time is strived for related maintenance and adjustment, no serious result is ensured, and the safety of the air film equipment is improved.
Referring to fig. 4, based on the same inventive concept, an embodiment of the present invention further provides a differential pressure detection system for preventing a malfunction, the system including a control unit, a fan unit, and a detection unit disposed on a detection path; wherein the detection unit comprises a differential pressure sensor and a differential pressure switch;
the detection unit is used for periodically obtaining a current detection value, the detection value comprises a differential pressure detection value and a differential pressure switch signal value, and the differential pressure switch comprises a high-pressure detection differential pressure switch and a low-pressure detection differential pressure switch.
Specifically, an analog sensor is collectively referred to as the differential pressure sensor, and a switching value sensor is collectively referred to as the differential pressure switch.
The detection unit is used for periodically obtaining a current detection value, the detection value comprises a differential pressure detection value and a differential pressure switch signal value, and the differential pressure switch signal value comprises a high-pressure detection differential pressure switch input and a low-pressure detection differential pressure switch input.
The control unit is used for:
judging by the control unit according to the detection value to determine an output mode of a differential pressure system connected with the control unit; the output mode comprises a high-pressure output of the differential pressure system, a low-pressure output of the differential pressure system, a normal output of the differential pressure system and a fault output of the differential pressure system.
In particular, the control unit comprises a respective controller and a differential pressure system; the judgment according to the detection value comprises the following processes:
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value reaches the high-level threshold value, the output mode is high-pressure output;
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value does not reach the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the high-level threshold value, and the differential pressure detection value reaches the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch reaches the low level threshold value and the differential pressure detection value reaches the low level threshold value, the output mode is low-voltage output;
if the signal value of the differential pressure switch reaches the low-level threshold value and the differential pressure detection value does not reach the low-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the low level threshold value, and the differential pressure detection value reaches the low level threshold value, the output mode is fault output.
It should be noted that when the differential pressure switch signal value reaches a high level threshold value, the input of the high-voltage detection differential pressure switch is a high level; and when the signal value of the differential pressure switch reaches a low threshold value, the input of the low-voltage detection differential pressure switch is a high level. Thus, the detection values of the differential pressure sensor and the differential pressure switch are comprehensively processed, and if a single passage or one sensor fails, the fault output is carried out.
During the application, owing to can appear the abnormal conditions that transient data or short-term sudden change brought, for avoiding too frequent action, reduce the condition of malfunction, the system still includes delay unit, delay unit is used for:
before the fault output, time delay processing is carried out to judge whether the time reaching the correspondingly set high-level threshold value or low-level threshold value exceeds the set time, and if not, the fault output is not carried out.
And the fan unit is used for controlling the fan to act according to the output mode.
The fan unit comprises a plurality of fans, when the output mode is fault output, the fault operation mode of the fan unit can be activated, the fan unit operates at a middle rotating speed and activates a middle speed constant speed, at the moment, although the pressure of the air film is inaccurate, the air film can be ensured not to be too high or too low when the pressure difference system is in fault, the safety can be ensured, the time is strived for related maintenance and adjustment, and the serious consequence is ensured not to be generated.
In the above units, the related specific embodiments can be referred to the foregoing, and the description is not repeated here.
Due to the fact that the probability that two paths or two sensors simultaneously fail is far smaller than that of one sensor, the safety of the air film equipment is greatly improved, and the condition of error actions is reduced.
In the description herein, references to the description of "one embodiment," "an example," "specifically," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Finally, it should be noted that the above description is only a preferred embodiment of the present application and is illustrative of the technical principles applied. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the present application.
Claims (8)
1. A differential pressure detection method for preventing misoperation is applied to a differential pressure detection system and is characterized in that the system comprises a control unit, a fan unit and a detection unit arranged on a detection path; wherein, the detecting element includes differential pressure sensor and differential pressure switch, differential pressure switch includes high pressure detection differential pressure switch and low pressure detection differential pressure switch, the method includes:
the detection unit periodically acquires a current detection value, wherein the detection value comprises a differential pressure detection value and a differential pressure switch signal value, and the differential pressure switch signal value comprises a high-voltage detection differential pressure switch input and a low-voltage detection differential pressure switch input;
judging by the control unit according to the detection value to determine an output mode of a differential pressure system connected with the control unit; the output mode comprises a high-pressure output of a differential pressure system, a low-pressure output of the differential pressure system, a normal output of the differential pressure system and a fault output of the differential pressure system;
and controlling the fan to act by the fan unit according to the output mode.
2. The differential pressure detection method for preventing malfunction according to claim 1, wherein the control unit performs determination based on the detection value to determine an output mode of the differential pressure system connected thereto, and specifically comprises:
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value reaches the high-level threshold value, the output mode is high-pressure output;
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value does not reach the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the high-level threshold value, and the differential pressure detection value reaches the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch reaches the low level threshold value and the differential pressure detection value reaches the low level threshold value, the output mode is low-voltage output;
if the signal value of the differential pressure switch reaches the low-level threshold value and the differential pressure detection value does not reach the low-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the low level threshold value, and the differential pressure detection value reaches the low level threshold value, the output mode is fault output.
3. A differential pressure detection method for preventing malfunction according to claim 2, characterized by further comprising:
before the fault output, time delay processing is carried out to judge whether the time reaching the correspondingly set high-level threshold value or low-level threshold value exceeds the set time, and if not, the fault output is not carried out.
4. A differential pressure detecting method for preventing malfunction according to claim 3, wherein the signal value of the differential pressure switch reaching a high threshold is that the high-voltage differential pressure switch input is at a high level; and when the signal value of the differential pressure switch reaches a low threshold value, the input of the low-voltage detection differential pressure switch is a high level.
5. A differential pressure detection system for preventing malfunction is characterized in that the system comprises a control unit, a fan unit and a detection unit arranged on a detection path; the detection unit comprises a differential pressure sensor and a differential pressure switch, and the differential pressure switch comprises a high-voltage detection differential pressure switch and a low-voltage detection differential pressure switch;
the detection unit is used for periodically acquiring a current detection value, the detection value comprises a differential pressure detection value and a differential pressure switch signal value, and the differential pressure switch signal value comprises a high-voltage detection differential pressure switch input and a low-voltage detection differential pressure switch input;
the control unit is used for:
judging by the control unit according to the detection value to determine an output mode of a differential pressure system connected with the control unit; the output mode comprises a high-pressure output of a differential pressure system, a low-pressure output of the differential pressure system, a normal output of the differential pressure system and a fault output of the differential pressure system;
and the fan unit is used for controlling the fan to act according to the output mode.
6. The differential pressure detection system for preventing malfunction according to claim 5, wherein the control unit performs determination based on the detection value to determine an output mode of the differential pressure system connected thereto, and specifically comprises:
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value reaches the high-level threshold value, the output mode is high-pressure output;
if the signal value of the differential pressure switch reaches the high-level threshold value and the differential pressure detection value does not reach the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the high-level threshold value, and the differential pressure detection value reaches the high-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch reaches the low level threshold value and the differential pressure detection value reaches the low level threshold value, the output mode is low-voltage output;
if the signal value of the differential pressure switch reaches the low-level threshold value and the differential pressure detection value does not reach the low-level threshold value, the output mode is fault output;
if the signal value of the differential pressure switch does not reach the low level threshold value, and the differential pressure detection value reaches the low level threshold value, the output mode is fault output.
7. The differential pressure detection system for preventing malfunction according to claim 6, wherein the system further comprises a delay unit for:
before the fault output, time delay processing is carried out to judge whether the time reaching the correspondingly set high-level threshold value or low-level threshold value exceeds the set time, and if not, the fault output is not carried out.
8. The differential pressure detection system for preventing malfunction according to claim 5, wherein the signal value of the differential pressure switch reaching the high threshold is that the high-voltage differential pressure switch input is at a high level; and when the signal value of the differential pressure switch reaches a low threshold value, the input of the low-voltage detection differential pressure switch is a high level.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6598195B1 (en) * | 2000-08-21 | 2003-07-22 | General Electric Company | Sensor fault detection, isolation and accommodation |
| CN104834210A (en) * | 2015-03-24 | 2015-08-12 | 上海新跃仪表厂 | Redundancy control method based on double position sensors |
| CN106783289A (en) * | 2016-12-30 | 2017-05-31 | 平高集团有限公司 | A kind of switching device |
| CN208421654U (en) * | 2018-07-19 | 2019-01-22 | 李宁 | A kind of integrated electric controller of packaged type membrane structure |
| CN210574424U (en) * | 2019-09-10 | 2020-05-19 | 华北科技学院 | Simulation colliery voltage-sharing fire prevention experimental apparatus |
-
2020
- 2020-07-21 CN CN202010705635.7A patent/CN113959630A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6598195B1 (en) * | 2000-08-21 | 2003-07-22 | General Electric Company | Sensor fault detection, isolation and accommodation |
| CN104834210A (en) * | 2015-03-24 | 2015-08-12 | 上海新跃仪表厂 | Redundancy control method based on double position sensors |
| CN106783289A (en) * | 2016-12-30 | 2017-05-31 | 平高集团有限公司 | A kind of switching device |
| CN208421654U (en) * | 2018-07-19 | 2019-01-22 | 李宁 | A kind of integrated electric controller of packaged type membrane structure |
| CN210574424U (en) * | 2019-09-10 | 2020-05-19 | 华北科技学院 | Simulation colliery voltage-sharing fire prevention experimental apparatus |
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