CN114689110A - Instrument fault detection alarm device and method - Google Patents
Instrument fault detection alarm device and method Download PDFInfo
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- CN114689110A CN114689110A CN202210583827.4A CN202210583827A CN114689110A CN 114689110 A CN114689110 A CN 114689110A CN 202210583827 A CN202210583827 A CN 202210583827A CN 114689110 A CN114689110 A CN 114689110A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000005693 optoelectronics Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D7/00—Indicating measured values
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
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Abstract
The application discloses an instrument fault detection alarm device and method, and relates to the technical field of instrument fault detection. The instrument fault detection alarm device is provided with a driving assembly, wherein the driving assembly comprises a motor, a screw rod and a sliding block, one end of the screw rod is connected with the motor, the sliding block penetrates through the screw rod, and the sliding block can move along the screw rod under the driving of the motor; the detection plate is configured to be fixedly connected with the sliding block, and two ends of the detection plate are respectively provided with a first detection groove and a second detection groove; the photoelectric switch is arranged on one side of the screw rod and is configured to detect the first detection groove or the second detection groove in the moving process of the sliding block; and the first contact switch and the second contact switch are respectively arranged at two ends of the moving track of the detection plate and are used for detecting the touch of the detection plate. Can detect the detection groove when photoelectric switch can't detect, detect the collision of pick-up plate through first contact switch and second contact switch to in time control motor reversal and externally send alarm signal, be favorable to the maintenance and the use of instrument.
Description
Technical Field
The application relates to the technical field of instrument fault detection, in particular to an instrument fault detection alarm device and method.
Background
In instrument equipment, a detection module usually drives a screw rod to rotate by a motor to push a sliding block to operate in a limited working interval, and the limitation of the working interval is realized by detecting a positioning piece arranged on the sliding block by a fixed photoelectric switch to control the motor to stop operating; when the photoelectric switch is interfered or fails to detect the positioning piece and output a signal, the operation of the motor exceeds a limited working range, the use of an instrument is influenced, and the motor can be damaged; in the event of motor failure, the use of the instrumentation is likewise affected. Therefore, there is a need for an apparatus fault detection alarm device and method to realize automatic detection and alarm of apparatus fault and timely find and locate the fault.
Disclosure of Invention
The technical problem to be solved by the application is to provide an instrument fault detection alarm device and method, which can realize automatic detection of instrument faults and timely alarm to the outside, and are beneficial to use and maintenance of instruments.
The following presents a simplified summary of the application in order to provide a basic understanding of some aspects of the application. It should be understood that this summary is not an exhaustive overview of the present application. It is not intended to identify key or critical elements of the application or to delineate the scope of the application. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
According to a first aspect of the present application, there is provided an instrument failure detection alarm device comprising:
the driving assembly comprises a motor, a screw rod and a sliding block, one end of the screw rod is connected with the motor, the sliding block penetrates through the screw rod, and the sliding block can move along the screw rod under the driving of the motor;
the detection plate is configured to be fixedly connected with the sliding block, and two ends of the detection plate are respectively provided with a first detection groove and a second detection groove;
the photoelectric switch is arranged on one side of the screw rod and is configured to detect the first detection groove or the second detection groove in the moving process of the sliding block;
and the first contact switch and the second contact switch are respectively arranged at two ends of the moving track of the detection plate and are used for detecting the touch of the detection plate.
In some embodiments, the photoelectric switch sends a move-to-place signal to the single chip microcomputer when detecting the first detection groove or the second detection groove.
In some embodiments, the first contact switch and the second contact switch both comprise a touch wheel and a key, and the touch wheel presses the key when touched by the detection plate, so as to send a contact in-place signal to the single chip microcomputer.
According to a second aspect of the present application, there is provided an instrument failure detection alarm method applied to the instrument failure detection alarm device according to the first aspect of the present application, including the following steps:
s1: the detection board moves to the first contact switch at a first speed under the driving of the motor, and if the singlechip does not receive a movement in-place signal output by the photoelectric switch and receives a first contact in-place signal output by the first contact switch, the photoelectric switch is subjected to first self-detection;
s2: if the photoelectric switch is normally self-checked for the first time, controlling the motor to rotate reversely, enabling the detection board to pass through the photoelectric switch again at a second speed lower than the first speed, and if the single chip microcomputer does not receive a moving in-place signal output by the photoelectric switch and receives a second contact in-place signal output by the second contact switch, performing self-check for the photoelectric switch for the second time;
s3: if the photoelectric switch is normally self-checked for the second time, controlling the motor to rotate reversely again, enabling the detection board to pass through the photoelectric switch for the third time at a third speed lower than the second speed, and if the singlechip does not receive the in-place moving signal output by the photoelectric switch and receives the in-place first contact signal output by the first contact switch, controlling the detection device to stop working and sending a second alarm signal; and if the singlechip receives the in-place moving signal output by the photoelectric switch, controlling the detection device to continue working and sending a third alarm signal.
In some embodiments, in step S1, if the single chip microcomputer does not receive the move-to-position signal output by the photoelectric switch and does not receive the contact-to-position signal output by the first contact switch, a first alarm signal is sent.
In some embodiments, in step S2, if the optoelectronic switch is not self-checked for the first time, the detection device is controlled to stop working and send a second alarm signal.
In some embodiments, in step S2, if the single chip receives the move-to-position signal output by the photoelectric switch when the detection board passes through the photoelectric switch again at the second speed, the single chip controls the detection device to continue to operate and sends a third alarm signal.
In some embodiments, in step S3, if the optoelectronic switch is not normally self-checked for the second time, the detection device is controlled to stop working and send a second alarm signal.
In some embodiments, the optoelectronic switch performs a self-test comprising: and controlling the photoelectric switch to be powered on after being powered off, and if the singlechip receives a level jump signal which is transmitted by the photoelectric switch and is converted from a high level to a low level, indicating that the photoelectric switch is normal.
Compared with the prior art, the application has the following beneficial effects: the application provides an instrument fault detection alarm device and method, can be when photoelectric switch self breaks down or receives external disturbance to lead to unable detection groove, detect the collision of pick-up plate through first contact switch and the second contact switch that sets up at the both ends of pick-up plate moving trajectory to timely control the motor reversal and externally send alarm signal, avoid pick-up plate and other component of equipment collision damage that causes equipment always, be favorable to the timely location of instrument trouble and be convenient for the use and the maintenance of instrument.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. The foregoing and other objects, features and advantages of the application will be apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be to scale as practical, emphasis instead being placed upon illustrating the subject matter of the present application.
Fig. 1 is a schematic structural diagram of an instrument fault detection alarm device provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another angle of an instrument fault detection alarm device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a detection board according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a contact switch according to an embodiment of the present disclosure;
fig. 5 is a flowchart of an instrument failure detection alarm method according to an embodiment of the present application.
In the figure:
1. a motor; 2. a screw rod; 3. a slider; 4. detecting a plate; 41. a first detection tank; 42. a second detection tank; 5. a photoelectric switch; 6. a first contact switch; 7. a second contact switch; 61. a touch wheel; 62. and (6) pressing a key.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, relational terms such as "first," "second," and the like may be used solely in the description herein to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Further, the term "and/or" in the present application is only one kind of association relationship describing the associated object, and means that three kinds of relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.
Exemplary embodiments of the present application will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual embodiment are described in the specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions may be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another.
Here, it should be further noted that, in order to avoid obscuring the present application with unnecessary details, only the device structure closely related to the solution according to the present application is shown in the drawings, and other details not so related to the present application are omitted.
It is to be understood that the application is not limited to the described embodiments, since the description proceeds with reference to the drawings. In this context, embodiments may be combined with each other, features may be replaced or borrowed between different embodiments, one or more features may be omitted in one embodiment, where feasible.
Fig. 1 is a schematic structural diagram of an instrument fault detection alarm device provided in an embodiment of the present application, and fig. 2 is a schematic structural diagram of another angle of the instrument fault detection alarm device provided in the embodiment of the present application.
Referring to fig. 1 and fig. 2, an instrument fault detection and alarm device provided in an embodiment of the present application includes:
the driving assembly comprises a motor 1, a screw rod 2 and a sliding block 3, one end of the screw rod 2 is connected with the motor 1, the sliding block 3 is arranged on the screw rod 2 in a penetrating mode, the sliding block 3 can be driven by the motor 1 to move along the screw rod 2, and a fixing block is arranged at the other end of the screw rod 2.
In the embodiment of the application, when the motor 1 runs, the screw rod 2 is driven to rotate so as to drive the sliding block 3 to move left and right along the screw rod 2.
The detection plate 4 is fixedly connected to the slider 3, and has a first detection groove 41 and a second detection groove 42 at both ends thereof, as shown in fig. 3.
In the embodiment of the application, the detection plate 4 is fixedly connected with the slide block 3, so that when the slide block 3 moves left and right along the screw rod 2, the detection plate 4 also moves along with the movement of the slide block.
And a photoelectric switch 5 disposed at one side of the screw rod 2 and configured to detect the first detection groove 41 or the second detection groove 42 during the movement of the slider 3.
In the embodiment of the application, under normal conditions, when the photoelectric switch 5 detects the first detection groove 41 or the second detection groove 42, the signal indicating that the movement is in place is sent to the single chip microcomputer, the high level is switched to the low level, and the single chip microcomputer receives the signal indicating that the movement is in place and immediately sends an instruction to control the motor 1 to stop running, and at this time, the motor 1 drives the detection plate 4 to move to a required working position.
However, when the photoelectric switch 5 fails, the first detection groove 41 or the second detection groove 42 cannot be normally detected, and at this time, the detection plate 4 does not stop after reaching a required working position, and runs all the time, and finally the slider 3 collides with the motor 1 or the fixed block at both ends of the screw rod 2. In this case, since no stop logic is set for the operation of the motor, the motor 1 can always operate without human intervention, so that the sliding block 3 always collides with the motor 1 or the fixed block at the two ends of the screw rod 2, and finally the instrument is damaged. In the embodiment of the present application, the damage of the instrument includes, but is not limited to, the damage of the motor 1, the lead screw 2 or the slide block 3.
In the embodiment of the present application, the failure type of the photoelectric switch 5 includes, but is not limited to, a failure of the photoelectric switch itself or an external interference on the photoelectric switch 5. Wherein, the photoelectric switch 5 is interfered by the outside, including but not limited to the decrease of the sensitivity of the photoelectric switch 5 due to the influence of dust or smoke, so that the first detection slot 41 or the second detection slot 42 cannot be detected normally; or, because the motor 1 runs faster, the detection board 4 is driven by the motor 1 to pass through the photoelectric switch 5 at a faster speed, so that the photoelectric switch 5 cannot detect the first detection slot 41 or the second detection slot 42 in time.
In the embodiment of the present application, in order to detect the occurrence of the above-mentioned fault and avoid the damage to the instrument device after the occurrence of the above-mentioned fault, a first contact switch 6 and a second contact switch 7 are further provided in the instrument fault detection apparatus. In the embodiment of the present application, since the detection board 4 is in reciprocating operation, the first contact switch 6 and the second contact switch 7 are respectively disposed at two ends of a moving track of the detection board 4, and are used for detecting a touch of the detection board 4.
In this embodiment, the two ends of the moving track of the detection plate 4 may be the housing of the motor 1 and the fixing block, respectively. Preferably, the first contact switch 6 may be disposed at an end of the detection plate 4 close to the motor 1, and the second contact switch 7 may be disposed at an end of the detection plate 4 far from the motor 1.
In the embodiment of the application, the first contact switch 6 and the second contact switch 7 may both include a touch wheel 61 and a key 62, as shown in fig. 4, the touch wheel 61 can press the key 62 when being touched by the detection plate 4, the key 62 can send a contact in-place signal indicating that the detection plate 4 has contacted the first contact switch 6 or the second contact switch 7 to the single chip microcomputer after being pressed down, the single chip microcomputer can immediately send an instruction to control the motor 1 to stop running after receiving the contact in-place signal, so that the sliding block 3 and the motor 1 are prevented from colliding together or the sliding block 3 and a fixed block at the other end of the lead screw 2 are prevented from colliding together, and thus, the parts of the instrument are protected from being damaged due to collision.
In the embodiment of the present application, the first contact switch 6 or the second contact switch 7 may also be a photoelectric switch or other sensors capable of detecting the position of the detection plate, and the application does not limit the type of the sensors.
On the basis of the instrument fault detection alarm device provided by the embodiment of the application, the embodiment of the application further provides an instrument fault detection alarm method, and under the condition that the instrument fault is detected, alarm information can be sent out timely and outwards to remind a worker to overhaul the instrument.
Referring to fig. 5, an instrument fault detection and alarm method provided in an embodiment of the present application includes the following steps:
s1: the detection board 4 is driven by the motor 1 to move towards the first contact switch 6 at a first speed, and if the singlechip does not receive the in-place moving signal output by the photoelectric switch 5 and receives the in-place first contact signal output by the first contact switch 6, the photoelectric switch 5 is subjected to first self-detection.
In the embodiment of the present application, under the condition that the single chip microcomputer does not receive the in-place moving signal output by the photoelectric switch 5 and receives the in-place first contact signal output by the first contact switch 6, it indicates that the photoelectric switch 5 does not detect the first detection groove 41 and the second detection groove 42, so as to cause the collision between the detection plate 4 and the first contact switch 6, and at this time, it needs to determine whether the photoelectric switch 5 does not detect the detection groove due to self-failure or external interference, so it needs to perform first self-detection on the photoelectric switch 5, and if the self-detection passes, it indicates that the photoelectric switch 5 is normal, and the detection groove does not detect and is caused by external interference.
In the embodiment of the present application, the self-checking of the photoelectric switch 5 may be performed by controlling the photoelectric switch 5 to be powered on after being powered off, and if the single chip receives a level jump signal which is sent by the photoelectric switch 5 and is converted from a high level to a low level, it indicates that the photoelectric switch 5 is normal. Specifically, the power supply of the photoelectric switch 5 is disconnected firstly, at this time, the single chip microcomputer receives a high level signal sent by the photoelectric switch 5, then the single chip microcomputer controls the photoelectric switch 5 to be powered on, under the condition that the photoelectric switch 5 is normal, the single chip microcomputer sends a low level signal to the single chip microcomputer after being powered on, if the single chip microcomputer can receive the low level signal, namely the single chip microcomputer receives a level jump signal converted from a high level to a low level, the condition that the photoelectric switch 5 is normal is indicated; if the single chip microcomputer can not receive the low level signal sent by the photoelectric switch 5 all the time within the set time range, the fault of the photoelectric switch is explained.
In the embodiment of the application, if the single chip microcomputer does not receive the in-place movement signal output by the photoelectric switch 5 and does not receive the in-place contact signal output by the first contact switch 6, it is indicated that the motor 1 has a fault, the single chip microcomputer sends a first alarm signal to the outside at the moment, and the first alarm signal is a motor fault signal indicating that the motor 1 has a fault.
Preferably, in the embodiment of the present application, the single chip microcomputer starts timing after sending the instruction for controlling the motor 1 to start operation, and if the single chip microcomputer does not receive the in-place moving signal output by the photoelectric switch 5 and does not receive the in-place contact signal output by the first contact switch 6 within a set time threshold, it is determined that the motor 1 has a fault.
In the embodiment of the present application, the set time threshold may be 20 seconds, but the embodiment of the present application does not limit a specific value of the time threshold.
S2: if the photoelectric switch 5 is normally self-checked for the first time, the motor 1 is controlled to rotate reversely, the detection board 4 passes through the photoelectric switch 5 again at a second speed lower than the first speed, and if the single chip microcomputer does not receive a moving in-place signal output by the photoelectric switch 5 and receives a second contact in-place signal output by the second contact switch 7, the photoelectric switch 5 is subjected to self-checking for the second time.
In the embodiment of the present application, if the first self-check of the photoelectric switch 5 is not normal, it indicates that the photoelectric switch 5 itself has a fault, and the detection device needs to be controlled to stop working and send a second alarm signal. The second alarm signal is a signal indicating the fault of the photoelectric switch.
In the embodiment of the present application, under the condition that the first self-check of the photoelectric switch 5 is normal, it is described that in step S1, the single chip microcomputer does not receive the in-place moving signal output by the photoelectric switch 5, and it may be caused by external interference, so that it is necessary to control the motor 1 to rotate reversely so as to make the detection board 4 operate reversely, and control the detection board 4 to pass through the photoelectric switch 5 again at a second speed lower than the first speed, so as to avoid that the photoelectric switch 5 cannot detect the detection slot in time due to the excessively fast operation speed of the detection board 4.
In this embodiment of the application, in step S2, when the single chip microcomputer does not receive the move-to-place signal output by the photoelectric switch 5 and receives the second contact-to-place signal output by the second contact switch 7, it is described that the photoelectric switch 5 does not detect the first detection groove 41 and the second detection groove 42, so that the detection plate 4 collides with the second contact switch 7, and at this time, it is necessary to determine again whether the photoelectric switch 5 has detected no detection groove due to a self fault or external interference, so that the photoelectric switch 5 needs to be self-checked for the second time.
In the embodiment of the application, if the detection board 4 passes through the photoelectric switch 5 again at the second speed, the single chip microcomputer can receive the in-place moving signal output by the photoelectric switch 5, which indicates that the photoelectric switch 5 is restored to normal operation at this time, the detection device can be controlled to continue to operate and send a third alarm signal to a worker, where the third alarm signal is a signal indicating that the photoelectric switch has failed once.
S3: if the photoelectric switch 5 is normally self-checked for the second time, the motor 1 is controlled to rotate reversely again, the detection board 4 is made to pass through the photoelectric switch 5 for the third time at a third speed lower than the second speed, and if the singlechip does not receive the in-place moving signal output by the photoelectric switch 5 and receives the first in-place contact signal output by the first contact switch 6, the detection device is controlled to stop working and send a second alarm signal; and if the singlechip receives the in-place moving signal output by the photoelectric switch 5, controlling the detection device to continue working and sending a third alarm signal.
In the embodiment of the present application, if the second self-check of the photoelectric switch 5 is not normal, it is determined that the photoelectric switch 5 itself has failed, and the detection device can be controlled to stop working and send a second alarm signal, where the second alarm signal is a signal indicating a fault of the photoelectric switch.
In this embodiment of the application, in step S3, when the single chip microcomputer does not receive the move-to-place signal output by the photoelectric switch 5 and receives the first contact-to-place signal output by the first contact switch 6, it indicates that the photoelectric switch 5 does not detect the first detection groove 41 and the second detection groove 42, so that the detection board 4 collides with the first contact switch 6 again, and at this time, it indicates that the photoelectric switch 5 has a fault, so that the detection device can be controlled to stop working and send a second alarm signal, where the second alarm signal is a signal indicating the fault of the photoelectric switch.
In this embodiment of the application, in step S3, if the single chip receives the move-in-place signal output by the photoelectric switch 5, it indicates that the fault occurring in front of the photoelectric switch is external interference capable of being automatically recovered, and the single chip has no problem, so that the single chip can control the detection device to continue working and send a third alarm signal to the outside, where the third alarm signal is used to indicate that the photoelectric switch has a fault.
In the embodiment of the application, the first alarm signal, the second alarm signal or the third alarm signal can be directly displayed on a display screen of the instrument so as to warn workers; alternatively, the first alarm signal, the second alarm signal or the third alarm signal may be uploaded to the cloud platform to warn the staff. The staff can find the fault point and handle in time according to alarm signal to can improve the efficiency of equipment maintenance.
The utility model provides an instrument fault detection alarm device and method, through set up first contact switch and second contact switch at the both ends of pick-up plate moving trajectory, can detect the collision of pick-up plate through contact switch when photoelectric switch can't detect the detection groove, control motor reversal makes the detection groove pass through photoelectric switch many times in order to confirm photoelectric switch's fault type, and to the external different alarm signal that sends of different fault types, thereby avoid the damage that collision of pick-up plate and motor or check out test set fixed plate caused equipment, be favorable to the timely location of instrument trouble and be convenient for the use and the maintenance of instrument.
The above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not for limiting the same, and the scope of the present application is not limited thereto, although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application.
Claims (9)
1. An instrument failure detection alarm device, comprising:
the driving assembly comprises a motor, a screw rod and a sliding block, one end of the screw rod is connected with the motor, the sliding block penetrates through the screw rod, and the sliding block can move along the screw rod under the driving of the motor;
the detection plate is configured to be fixedly connected with the sliding block, and two ends of the detection plate are respectively provided with a first detection groove and a second detection groove;
the photoelectric switch is arranged on one side of the screw rod and is configured to detect the first detection groove or the second detection groove in the moving process of the sliding block;
and the first contact switch and the second contact switch are respectively arranged at two ends of the moving track of the detection plate and are used for detecting the touch of the detection plate.
2. The instrument failure detection alarm device of claim 1, wherein the photoelectric switch sends a move-to-position signal to a single chip when the first detection slot or the second detection slot is detected.
3. The instrument fault detection alarm device according to claim 1, wherein each of the first contact switch and the second contact switch includes a touch wheel and a key, and the touch wheel presses the key when touched by the detection plate to send a contact-in-place signal to the single chip microcomputer.
4. An instrument failure detection alarm method applied to the instrument failure detection alarm device according to any one of claims 1 to 3, characterized by comprising the following steps:
s1: the detection board moves to the first contact switch at a first speed under the driving of the motor, and if the singlechip does not receive a movement in-place signal output by the photoelectric switch and receives a first contact in-place signal output by the first contact switch, the photoelectric switch is subjected to first self-detection;
s2: if the photoelectric switch is normally self-checked for the first time, controlling the motor to rotate reversely, enabling the detection board to pass through the photoelectric switch again at a second speed lower than the first speed, and if the single chip microcomputer does not receive a moving in-place signal output by the photoelectric switch and receives a second contact in-place signal output by the second contact switch, performing self-check for the photoelectric switch for the second time;
s3: if the photoelectric switch is normally self-checked for the second time, controlling the motor to rotate reversely again, enabling the detection board to pass through the photoelectric switch for the third time at a third speed lower than the second speed, and if the singlechip does not receive the in-place moving signal output by the photoelectric switch and receives the in-place first contact signal output by the first contact switch, controlling the detection device to stop working and sending a second alarm signal; and if the singlechip receives the in-place moving signal output by the photoelectric switch, controlling the detection device to continue working and sending a third alarm signal.
5. The instrument fault detection alarm method according to claim 4, wherein in the step S1, if the single chip microcomputer does not receive the move-to-position signal output by the photoelectric switch and does not receive the contact-to-position signal output by the first contact switch, a first alarm signal is sent.
6. The instrument fault detection alarm method according to claim 4, wherein in the step S2, if the optoelectronic switch is not self-checked for the first time, the detection device is controlled to stop working and a second alarm signal is sent.
7. The instrument failure detection alarm method according to claim 4, wherein in step S2, if the single chip receives the move-to-position signal output by the photoelectric switch when the detection board passes the photoelectric switch again at the second speed, the single chip controls the detection device to continue to operate and sends a third alarm signal.
8. The instrument fault detection alarm method according to claim 4, wherein in the step S3, if the photoelectric switch is not normally self-checked for the second time, the detection device is controlled to stop working and a second alarm signal is sent.
9. The instrument fault detection alarm method of claim 4, wherein the photoelectric switch performs self-checking, comprising:
and controlling the photoelectric switch to be powered on after being powered off, and if the singlechip receives a level jump signal which is transmitted by the photoelectric switch and is converted from a high level to a low level, indicating that the photoelectric switch is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210583827.4A CN114689110B (en) | 2022-05-27 | 2022-05-27 | Instrument fault detection alarm device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210583827.4A CN114689110B (en) | 2022-05-27 | 2022-05-27 | Instrument fault detection alarm device and method |
Publications (2)
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Effective date of registration: 20231022 Address after: 266000 no.292, Nanliu Road, Liuting street, Chengyang District, Qingdao City, Shandong Province Patentee after: QINGDAO MINGDE ENVIRONMENTAL PROTECTION APPARATUS Co.,Ltd. Address before: 266109 building 66, 702 Shanhe Road, Liuting street, Chengyang District, Qingdao City, Shandong Province Patentee before: QINGDAO MINGHUA ELECTRONIC INSTRUMENT Co.,Ltd. |