CN117406302A - Desiccant neglected loading detection method, equipment and system - Google Patents
Desiccant neglected loading detection method, equipment and system Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 262
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- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 230000007704 transition Effects 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 15
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- 239000007769 metal material Substances 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
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- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
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Abstract
The application provides a desiccant neglected loading detection method, which only generates a rejection control signal to control a rejection mechanism to generate rejection action when an acquired first trigger signal and a second trigger signal are in a logic high level state at the same time so as to reject the detected material of the desiccant neglected loading, and the detected material completely passes through a detection channel at the moment, so that the rejection mechanism can be ensured to finish the rejection action of the detected material of the desiccant neglected loading, and therefore, the desiccant neglected loading detection method can accurately and rapidly finish the rejection action of the detected material of the desiccant neglected loading with various sizes. The application also provides a desiccant neglected loading detection device and a desiccant neglected loading detection system, and the desiccant neglected loading detection method is used for conducting desiccant neglected loading detection.
Description
Technical Field
The application relates to the technical field of material conveying detection, in particular to a desiccant neglected loading detection method, device and system.
Background
In the industries of food, medicine, chemical industry, knitting and the like, various desiccants are often added in the package of the product in order to ensure the moisture-proof requirement of the product, and the product package is often subjected to automatic assembly line operation through mechanical equipment, so that the condition of missing the desiccants can be caused when the equipment is in fault. In the prior art, detection is often carried out by adopting a manual detection or spot check mode aiming at the condition of missing drying agent, and the detection method has the problems of low accuracy and low efficiency.
The metal detector is a device for detecting metal, and the drier added in the product package contains metal materials and can give an alarm of the metal detector, however, when the metal detector is adopted to carry out the drier neglected loading detection on the product, the metal detector can give an alarm only when the drier is contained in the detected material, so that the detection on the drier neglected loading can not be completed through the metal detector.
Disclosure of Invention
The purpose of the application is to provide a desiccant neglected loading detection method, device and system, which can accurately finish rejecting the detected materials of the desiccant neglected loading.
To achieve the above and other related objects, the present application provides a method for detecting a missing desiccant, comprising:
acquiring detection signals, wherein the detection signals comprise a first detection signal and a second detection signal which are sequentially acquired according to time sequence, the first detection signal is desiccant detection information of a detected material, and the second detection signal is position information of the detected material;
acquiring a first trigger signal according to the first detection signal, wherein the first trigger signal is in a logic low level state when the desiccant in the detected material is detected in the detection channel, and is in a logic high level state when the desiccant in the detected material is neglected to be loaded;
Acquiring a second trigger signal according to the second detection signal, and jumping the second trigger signal from a logic low level state to a logic high level state when the detected material completely passes through the outlet of the detection channel;
processing the first trigger signal and the second trigger signal to generate a rejection control trigger signal;
and acquiring a rejection control signal according to the rejection control trigger signal, and controlling a rejection mechanism to reject the detected material which is leaked from the drying agent.
Optionally, acquiring the first detection signal by a metal detector; and acquiring the second detection signal through a photoelectric detector.
Optionally, acquiring the first trigger signal includes the following steps:
acquiring an inverted signal of the first detection signal and recording the inverted signal as a first inverted signal;
acquiring a first front-end signal according to the first reverse phase signal;
acquiring an inverted signal of the first front-end signal as the first trigger signal, wherein when the first inverted signal is an inverted signal of a first jump signal, the first front-end signal jumps from a logic low level state to a logic high level state, the first trigger signal jumps from the logic high level state to the logic low level state, and the first jump signal jumps from the logic low level state to the logic high level state;
After the first trigger signal jumps from the logic high level state to the logic low level state, the first trigger signal is kept to be in the logic low level state and the duration time is recorded as a second duration time t2.
Optionally, when the second detection signal is a third transition signal, the second trigger signal transitions from a logic low level state to a logic high level state, and the third transition signal transitions from the logic high level state to the logic low level state.
Optionally, for the same measured material, a time interval between a time when the first detection signal is a first jump signal and a time when the second trigger signal is a fourth jump signal is recorded as a third time period t3, where the second time period t2 is greater than or equal to the third time period t3, and the fourth jump signal is a jump signal when the second trigger signal jumps from a logic low level state to a logic high level state.
Optionally, generating the rejection control trigger signal includes the steps of:
performing logic operation processing on the first trigger signal and the second trigger signal to obtain a second front-end signal, wherein when the first trigger signal and the second trigger signal are both in a logic high level state, the second front-end signal is in a logic low level state, and when at least one of the first trigger signal and the second trigger signal is in a logic low level state, the second front-end signal is in a logic high level state;
And generating the rejection control trigger signal according to the second front-end signal, wherein the rejection control trigger signal is an inverse signal of the second front-end signal.
The application also provides a desiccant neglected loading detection device, which is used for executing any one of the desiccant neglected loading detection methods according to the previous embodiments to perform desiccant neglected loading detection, and comprises the following steps:
the detection module comprises a first detection unit and a second detection unit, wherein the first detection unit is used for detecting a drying agent in a detected material and generating a first detection signal, and the second detection unit is used for detecting position information of the detected material and generating a second detection signal;
the trigger signal acquisition module is used for acquiring the first detection signal and the second detection signal from the detection module, generating a first trigger signal according to the first detection signal and generating a second trigger signal according to the second detection signal;
the rejection control trigger signal acquisition module is used for acquiring the first trigger signal and the second trigger signal from the trigger signal acquisition module and generating rejection control trigger signals according to the first trigger signal and the second trigger signal;
And the rejection control signal acquisition module is used for acquiring the rejection control trigger signal from the rejection control trigger signal acquisition module so as to generate a rejection control signal, wherein the rejection control signal is used for controlling the tested materials of which the rejection drying agent is leaked.
Optionally, the trigger signal acquisition module includes:
the first logic unit is used for acquiring the first detection signal from the detection module and generating a first inversion signal according to the first detection signal;
the first front-end signal acquisition unit is used for acquiring the first inverted signal from the first logic unit and generating a first front-end signal according to the first inverted signal;
the second logic unit is used for acquiring the first front-end signal from the first front-end signal acquisition unit and generating the first trigger signal;
the second trigger signal acquisition unit is used for acquiring the second detection signal from the detection module and generating the second trigger signal according to the second detection signal.
Optionally, the rejection control trigger signal acquisition module includes:
the third logic unit is used for acquiring the first trigger signal and the second trigger signal from the trigger signal acquisition module and generating a second front-end signal according to the first trigger signal and the second trigger signal;
And the fourth logic unit is used for acquiring the second front-end signal from the third logic unit and generating a rejection control trigger signal according to the second front-end signal.
Optionally, the rejection control signal acquisition module includes a rejection start control unit and a rejection stop control unit, where the rejection start control unit is configured to acquire a rejection start signal in the rejection control signal, and the rejection stop control unit is configured to acquire a rejection stop signal in the rejection control signal.
The application also provides a drier neglected loading detecting system, including be used for carrying the transport mechanism of measured material, be used for right the detection mechanism that detects the measured material and be used for rejecting the drying agent neglected loading the rejection mechanism of measured material, detection mechanism includes any drying agent neglected loading check out test set and is used for installing drying agent neglected loading check out test set's detection channel according to preceding embodiment.
The desiccant neglected loading detection method, the desiccant neglected loading detection equipment and the desiccant neglected loading detection system have the following beneficial effects:
according to the desiccant neglected loading detection method, when the desiccants in the detected materials are neglected to be loaded, the acquired first trigger signal and second trigger signal are in a logic high level state at the same time, rejection control signals are generated at the moment so that rejection actions are generated by the rejection mechanism, the detected materials which are neglected to be loaded by the desiccants can be accurately removed, and the detected materials completely pass through the detection channel at the moment, so that the rejection actions of the detected materials which are neglected to be loaded by the desiccants with various sizes can be accurately and rapidly completed, and rejection of the detected materials which cannot be completed due to incomplete passing of the detected materials through the detection channel when the rejection actions are generated by the rejection mechanism is effectively prevented; in addition, the desiccant neglected loading detection method can effectively prevent the rejection mechanism from generating false rejection action to reject the detected material with the desiccant due to the influence of interference signals, and improves the working stability and accuracy of the desiccant.
The desiccant neglected loading detection device provided by the application carries out desiccant neglected loading detection by applying any one of the desiccant neglected loading detection methods according to the previous embodiment, and the desiccant neglected loading detection system provided by the application comprises any one of the channel type desiccant neglected loading detection devices according to the previous embodiment, so that the desiccant neglected loading detection device has the beneficial effects as well.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a method for detecting a missing desiccant package according to an embodiment of the present disclosure.
Fig. 2 is a schematic flow chart of acquiring a first trigger signal in a desiccant neglected loading detection method according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a desiccant neglected loading detection apparatus according to a second embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of a detection module in a desiccant neglected loading detection apparatus according to a second embodiment of the present disclosure.
Fig. 5 is a schematic circuit diagram of a second detection unit in the detection module shown in fig. 4.
Fig. 6 is a schematic circuit diagram of a trigger signal acquisition module in a desiccant neglected loading detection apparatus according to a second embodiment of the present application.
Fig. 7 is a schematic circuit diagram of a rejection control trigger signal acquisition module in a desiccant neglected loading detection apparatus according to a second embodiment of the present application.
Fig. 8 is a schematic circuit diagram of a rejection control signal acquisition module in a desiccant neglected loading detection apparatus according to a second embodiment of the present application.
Fig. 9 is a schematic structural diagram of a desiccant neglected loading detection system according to a third embodiment of the present disclosure.
Fig. 10 is a schematic circuit diagram of a rejection control module in the desiccant neglected loading detection system shown in fig. 9.
In the figure: 3. a detection mechanism; 4. a repelling mechanism; 31. a detection module; 32. a trigger signal acquisition module; 33. a rejection control trigger signal acquisition module; 34. a rejection control signal acquisition module; 41. a rejection control module; 42. a rejection action module; 311. a first detection unit; 312. a second detection unit; 321. a first logic unit; 322. a first front-end signal acquisition unit; 323. a second trigger signal acquisition unit; 324. a second logic unit; 331. a third logic unit; 332. a fourth logic unit; 341. a rejection start control unit; 342. rejection stop control means; 3101. the first output end of the detection module; 3102. the second output end of the detection module; 3201. a first input end of the trigger signal acquisition module; 3202. a second input end of the trigger signal acquisition module; 3203. the first output end of the trigger signal acquisition module; 3204. the second output end of the trigger signal acquisition module; 3301. the first input end of the rejection control trigger signal acquisition module; 3302. the second input end of the rejection control trigger signal acquisition module; 3303. the output end of the rejection control trigger signal acquisition module; 3401. rejection control signal acquisition module input; 3402. the rejection control signal acquisition module comprises a first output end; 3403. the second output end of the rejection control signal acquisition module; 4101. rejection control module first input; 4102. rejection control module second input; 4103. rejection control module output.
Detailed Description
In order to make the technical purposes, technical solutions and technical effects of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The present application may be embodied or carried out in other specific embodiments and with various details, modifications, alterations, or combinations of the application may be made without departing from the spirit of the application, and from various perspectives and applications.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and for simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Example 1
The embodiment provides a method for detecting a missing desiccant, which can accurately exclude materials to be detected of missing desiccant of various sizes, and referring to fig. 1, the method for detecting missing desiccant includes steps S1 to S5, wherein:
step S1: acquiring a detection signal;
the detection signals comprise a first detection signal and a second detection signal, the first detection signal and the second detection signal are respectively acquired sequentially according to time sequence, the first detection signal is desiccant detection information of the detected material, and the second detection signal is position information of the detected material. The first detection signal and the second detection signal comprise a logic low level signal, a logic high level signal, a jump signal from a logic low level to a logic high level and a jump signal from a logic high level to a logic low level.
Generating a first detection signal by detecting a desiccant in the material under test; optionally, the first detection signal is acquired by a metal detector. When no detected material passes through a detection channel in the channel type metal detection equipment or the detected material passing through the detection channel is in neglected loading with the drier, the first detection signal always keeps a logic low level state; when the detected material with the drying agent enters the detection channel, the first detection signal jumps from a logic low level state to a logic high level state; when the drying agent in the detected material is positioned in the detection channel, the first detection signal keeps a logic high level state; when the desiccant in the tested material completely passes through the detection channel, the first detection signal jumps from a logic high level state to a logic low level state. In this embodiment, a transition signal of the first detection signal from the logic low level state to the logic high level state is referred to as a first transition signal, and a transition signal of the first detection signal from the logic high level state to the logic low level state is referred to as a second transition signal.
Generating a second detection signal by detecting the position of the detected material; optionally, the second detection signal is acquired by a photodetector. The photoelectric detector is arranged at the outlet of the detection channel, when the detected material does not pass through the outlet of the detection channel, the second detection signal keeps a logic low level state, when the detected material passes through the outlet of the detection channel, the second detection signal jumps from the logic low level state to a logic high level state, and when the detected material completely passes through the outlet of the detection channel, the second detection signal jumps from the logic high level state to the logic low level state. In this embodiment, a transition signal in which the second detection signal transitions from a logic high level state to a logic low level state is denoted as a third transition signal.
Step S2: acquiring a first trigger signal;
and acquiring a first trigger signal according to the generated first detection signal. When the drier in the tested material is neglected to be loaded, the first trigger signal keeps a logic high level state; when the detected material with the drying agent is positioned in the detection channel, the first trigger signal is in a logic low level state; when the detected material completely passes through the outlet of the detection channel from the detection channel, the second trigger signal jumps from a logic low level state to a logic high level state.
In this embodiment, referring to fig. 2, acquiring the first trigger signal includes the following steps:
s21: acquiring a first inverted signal;
the first detection signal is logically operated to generate an inverted signal of the first detection signal and denoted as a first inverted signal.
S22: acquiring a first front-end signal according to the first inverted signal;
the first front-end signal is obtained according to the first inverted signal. In this embodiment, in the normal state, the first front-end signal maintains a logic low state, and when the first detection signal transitions from the logic low state to the logic high state, the first inversion signal transitions from the logic high state to the logic low state, and at this time, the first front-end signal transitions from the logic low state to the logic high state under the excitation of the first inversion signal.
S23: generating a first trigger signal according to the first front-end signal;
and performing logic operation on the first front-end signal to generate an inverted signal of the first front-end signal as a first trigger signal.
S24: the first trigger signal is maintained in a logic low state.
After the first trigger signal jumps from the logic high level state to the logic low level state, the logic low level state of the first trigger signal is maintained for a preset time, the time for maintaining the logic low level state of the first trigger signal is recorded as a second duration t2, and after the logic low level state of the first trigger signal is maintained for the second duration t2, the first trigger signal jumps from the logic low level state to the logic high level state.
Step S3: acquiring a second trigger signal;
and acquiring a second trigger signal according to the second detection signal. Specifically, in the normal state, the second trigger signal maintains a logic low state, and when the second detection signal is the third transition signal, the second trigger signal transitions from the logic low state to the logic high state. For the same detected material, the time interval between the moment when the first detection signal is the first jump signal and the moment when the second trigger signal is the fourth jump signal is recorded as a third duration t3, the fourth jump signal is the jump signal when the second trigger signal jumps from the logic low level state to the logic high level state, and the third duration t3 represents the time interval from the detected material with the drying agent entering the detection channel and being detected until the second trigger signal is the fourth jump signal. Preferably, the second time period t2 is greater than or equal to the third time period t3. By enabling the second time period t2 to be greater than or equal to the third time period t3, the rejection mechanism can be further ensured not to generate rejection action to reject the detected material with the drying agent after the detected material with the drying agent completely passes through the detection channel.
Step S4: acquiring a rejection control trigger signal;
the first trigger signal and the second trigger signal are processed to obtain a rejection control trigger signal. In this embodiment, acquiring the rejection control trigger signal includes the steps of:
and carrying out logic operation processing on the first trigger signal and the second trigger signal to acquire a second front-end signal. When at the same time, at least one of the first trigger signal and the second trigger signal is in a logic low level state, namely, the first trigger signal or the second trigger signal or the first trigger signal and the second trigger signal are in a logic low level state, and the second front signal is in a logic high level state.
And carrying out logic operation processing on the second front-end signal to obtain the rejection control trigger signal. Specifically, when the second front-end signal is in a logic high level state, the rejection control signal is in a logic low level state, when the second front-end signal jumps from the logic high level state to the logic low level state, the rejection control signal jumps from the logic low level state to the logic high level state, and when the second front-end signal is kept in the logic low level state, the rejection control trigger signal is kept in the logic high level state.
Step S5: and acquiring a rejection control signal and removing the tested materials which are leaked from the drying agent.
And acquiring a rejection control signal according to the rejection control trigger signal, wherein when the rejection control trigger signal jumps from a logic low level state to a logic high level state, the generated rejection control signal can control the rejection mechanism to reject the detected material which is leaked from the desiccant.
In this embodiment, when no measured material passes through the detection channel, the first trigger signal keeps a logic high level state, the second trigger signal keeps a logic low level state, and the acquired rejection control trigger signal is a logic low level state, so that the rejection control signal is not generated, and the rejection mechanism generates rejection action; when the desiccant in the detected material is in a leaked state, the first trigger signal keeps a logic high level state, and when the detected material in the leaked state passes through the outlet of the detection channel, the acquired second trigger signal jumps from a logic low level state to a logic high level state, so that the acquired rejection control trigger signal jumps from the logic low level state to the logic high level state, and rejection control signals are generated so as to enable the rejection mechanism to reject the detected material in the leaked state; when the detected material with the drying agent passes through the detection channel, the first trigger signal is in a logic low level state, so that the acquired rejection control trigger signal is in a logic low level state, and therefore the rejection control signal is not generated, and the rejection mechanism generates rejection action.
In the desiccant neglected loading detection method in the embodiment, by ensuring that the second time period t2 is greater than or equal to the third time period t3, when the detected material completely passes through the outlet of the detection channel, the second trigger signal is in a logic high level state, and the first trigger signal is in a logic low level state, so that the rejection control trigger signal is in a logic low level state, and the rejection mechanism does not generate rejection action to reject the detected material with the desiccant. Meanwhile, in the desiccant detection method in the prior art, the false rejection action on the detected material with the desiccant is often generated due to the existence of the interference signal, and in the embodiment, when the channel type metal detection device has the interference signal, the first detection signal is caused to jump from the logic low level state to the logic high level state, and at the moment, the first trigger signal is still in the logic low level state; and when no detected material passes through the detection channel, the acquired second trigger signal is in a logic low level state, and when at least one of the first trigger signal and the second trigger signal is in a logic low level state, the acquired rejection control trigger signal is kept in the logic low level state, so that the rejection control signal is not generated, the rejection mechanism generates rejection action, and the working stability of the rejection mechanism is ensured.
According to the desiccant neglected loading detection method, when the desiccant in the detected material is neglected to be loaded, the acquired first trigger signal and second trigger signal are in a logic high level state at the same time, a rejection control signal is generated to enable the rejection mechanism to generate rejection action, the detected material of the desiccant neglected loading can be accurately removed, and the detected material completely passes through the detection channel at the same time, so that the rejection action of the detected material of the desiccant neglected loading with various sizes can be accurately and rapidly completed, and rejection of the detected material which cannot be completed due to the fact that the detected material does not completely pass through the detection channel and the rejection mechanism generates rejection action is effectively prevented; in addition, the desiccant neglected loading detection method can effectively prevent the rejection mechanism from generating false rejection action to reject the detected material with the desiccant due to the influence of interference signals, and improves the working stability and accuracy of the desiccant.
Example two
The present embodiment provides a desiccant neglected loading detection apparatus, which performs desiccant neglected loading detection by applying any one of the desiccant neglected loading detection methods in the first embodiment, and referring to fig. 3, the desiccant neglected loading detection apparatus provided in the present embodiment includes a detection module 31, a trigger signal acquisition module 32, a rejection control trigger signal acquisition module 33, and a rejection control signal acquisition module 34.
Referring to fig. 4, the detection module 31 includes a first detection unit 311, a second detection unit 312, a detection module first output terminal 3101, and a detection module second output terminal 3102, where the first detection unit 311 is configured to detect a desiccant in a material to be detected to generate a first detection signal, the second detection unit 312 is configured to detect a position signal of the material to be detected to generate a second detection signal, the output terminal of the first detection unit 311 is used as the detection module first output terminal 3101, and the output terminal of the second detection unit 312 is used as the detection module second output terminal 3102.
In an alternative embodiment, the first detection unit 311 includes a metal detector that is capable of detecting a metal in a desiccant in the material under test passing through the detection channel to generate a first detection signal. Specifically, when no detected material passes through the detection channel or the detected material passing through the detection channel does not contain metal, the first detection signal acquired by the first detection unit 311 keeps a logic low level state, and when the detected material has a drying agent and passes through the detection channel, the first detection signal acquired by the first detection unit 311 jumps from the logic low level state to the logic high level state; referring to fig. 5, the second detecting unit 312 includes a photo detector J2 and is disposed at an outlet of the detecting channel, a VCC pin of the photo detector J2 is connected to a power supply VDD, GND is a ground pin and is connected to a digital DGND, the second detecting unit 312 is capable of detecting an entry and exit of a detected material passing through the outlet of the detecting channel to obtain a second detecting signal, the obtained second detecting signal maintains a logic low state when no detected material passes through the outlet of the detecting channel, the obtained second detecting signal jumps from a logic low state to a logic high state when the detected material passes through the outlet of the detecting channel, and the second detecting signal jumps from a logic high state to a logic low state when the detected material completely passes through the outlet of the detecting channel.
The trigger signal obtaining module 32 is configured to obtain a detection signal from the detection module 31, generate a first trigger signal according to the first detection signal, and generate a second trigger signal according to the second detection signal, where the trigger signal obtaining module 32 is provided with a first trigger signal obtaining module input end 3201, a second trigger signal obtaining module input end 3202, a first trigger signal obtaining module output end 3203, and a second trigger signal obtaining module output end 3204.
In the present embodiment, referring to fig. 6, the trigger signal acquisition module 32 includes a first logic unit 321, a first front-end signal acquisition unit 322, a second trigger signal acquisition unit 323, and a second logic unit 324. The first logic unit 321 is configured to obtain a first detection signal from the detection module 31, and generate a first inversion signal, where the first inversion signal is an inversion signal of the first detection signal; the input terminal of the first logic unit 321 is used as a trigger signal acquiring module first input terminal 3201, and is electrically connected to the detecting module first output terminal 3101, and is capable of receiving the first detection signal output by the detecting module 31. The first front-end signal acquiring unit 322 is configured to generate a first front-end signal after acquiring the first inverted signal from the first logic unit 321; the input end of the first front end signal acquisition unit 322 is electrically connected to the output end of the first logic unit 321, and is capable of receiving the first inverted signal from the first logic unit 321, generating a first front end signal according to the received first inverted signal, and outputting the first front end signal through the output end of the first front end signal acquisition unit. The input end of the second logic unit 324 is electrically connected to the output end of the first front end signal acquisition unit, the output end of the second logic unit 324 is used as the first output end 3203 of the trigger signal acquisition module, and the second logic unit 324 is used for receiving the first front end signal and generating a first trigger signal and outputting the first trigger signal through the first output end 3203 of the trigger signal acquisition module. The second trigger signal obtaining unit 323 is configured to generate a second trigger signal after obtaining a second detection signal from the detection module 31; the input end of the second trigger signal obtaining unit 323 is used as a second input end 3202 of the trigger signal obtaining module and is electrically connected with the second output end 3102 of the detection module to receive the obtained second detection signal, the output end of the second trigger signal obtaining unit 323 is used as a second output end 3204 of the trigger signal obtaining module, and according to the received second detection signal, the second trigger signal obtaining unit 323 generates a second trigger signal and outputs the second trigger signal through the second output end 3204 of the trigger signal obtaining module.
In an alternative embodiment, referring to fig. 6, the circuit structure of the first logic unit 321 includes an integrated chip U6A and an external circuit of the integrated chip U6A, and the second logic unit 324 includes an integrated chip U6D, where the integrated chip U6A and the integrated chip U6D are both CD4011 chips. The circuit structure of the first front-end signal acquisition unit 322 includes an integrated chip U4 and an external circuit of the integrated chip U4, where an input signal of the integrated chip U4 is a received first inverted signal, and an output signal of the integrated chip U4 is used as a first front-end signal; optionally, the integrated chip U4 is a NE555 chip; preferably, the external circuit of the integrated chip U4 includes a capacitor C4, the capacitor C4 is disposed between the input end of the integrated chip U4 and the output end of the first logic unit 321, the capacitor C4 can effectively prevent dc interference generated in the circuit, and receive a jump signal in the first inversion signal from the first logic unit 321 as an excitation signal of the integrated chip U4, the output signal of the integrated chip U4 maintains a logic low level state in a normal state, when the received first inversion signal jumps from a logic high level state to a logic low level state, the output signal of the integrated chip U4 jumps from the logic low level state to the logic high level state under the action of the first inversion signal, and maintains a logic high level state for a second time period t2, and then the logic low level state is restored, and the second time period t2 can be adjusted according to practical needs. Similar to the first front-end signal acquiring unit 322, the second trigger signal acquiring unit 323 also includes an integrated chip U5 and an external circuit of the integrated chip U5, where the external circuit of the integrated chip U5 includes a capacitor C8, and the capacitor C8 is disposed between the input end of the integrated chip U5 and the second input end 3202 of the trigger signal acquiring module; alternatively, the second trigger signal acquisition unit 323 has the same structure as the first front-end signal acquisition unit 322.
Referring to fig. 7, a rejection control trigger signal obtaining module 33 is configured to generate a rejection control trigger signal after the first trigger signal and the second trigger signal are obtained by the trigger signal obtaining module 32, where the rejection control trigger signal obtaining module 33 is provided with a rejection control trigger signal obtaining module first input end 3301, a rejection control trigger signal obtaining module second input end 3302, and a rejection control trigger signal obtaining module output end 3303, and the rejection control trigger signal obtaining module first input end 3301 is configured to receive the obtained first trigger signal and be electrically connected to the trigger signal obtaining module first output end 3203, and the rejection control trigger signal obtaining module second input end 3302 is configured to receive the obtained second trigger signal and be electrically connected to the trigger signal obtaining module second output end 3204.
In the present embodiment, the rejection control trigger signal acquisition module 33 includes a third logic unit 331 and a fourth logic unit 332. The third logic unit 331 is configured to generate a second front end signal after the first trigger signal and the second trigger signal are acquired from the trigger signal acquiring module 32, where the third logic unit 331 has two input terminals and is used as the first input terminal 3301 of the rejection control trigger signal acquiring module and the second input terminal 3302 of the rejection control trigger signal acquiring module, respectively. The fourth logic unit 332 is configured to generate the rejection control trigger signal after acquiring the second front end signal from the third logic unit 331, where an input end of the fourth logic unit 332 is electrically connected to an output end of the third logic unit 331, and an output end of the fourth logic unit 332 is used as the rejection control trigger signal acquiring module output end 3303.
In an alternative embodiment, the circuit structure of the third logic unit 331 includes an integrated chip U6B, the circuit structure of the fourth logic unit 332 includes an integrated chip U6C, the first input terminal 3301 of the rejection control trigger signal acquisition module and the second input terminal 3302 of the rejection control trigger signal acquisition module provide input signals for two input terminals of the integrated chip U6B, the output terminal of the integrated chip U6B provides input signals for the integrated chip U6C and is electrically connected to two input terminals of the integrated chip U6C, and the output terminal of the integrated chip U6C serves as the output terminal 3303 of the rejection control trigger signal acquisition module. Optionally, the integrated chip U6B and the integrated chip U6C are all CD4011 chips.
Referring to fig. 8, the rejection control signal obtaining module 34 is configured to generate a rejection control signal after the rejection control trigger signal obtaining module 33 obtains the rejection control trigger signal, where the rejection control signal can control the rejection of the tested material that is contained in the desiccant. Wherein the rejection control signal acquisition module 34 has a rejection control signal acquisition module input 3401, a rejection control signal acquisition module first output 3402, and a rejection control signal acquisition module second output 3403 disposed therein.
In the present embodiment, the rejection control signal acquisition module 34 includes a rejection start control unit 341 and a rejection stop control unit 342, the rejection control signal includes a rejection start signal and a rejection stop signal, and the rejection control signal acquisition module input 3401 is electrically connected to the rejection control trigger signal acquisition module output 3303 to provide input signals to the rejection start control unit 341 and the rejection stop control unit 342, and the rejection start control unit 341 generates a rejection start signal according to the rejection control signal received by the rejection control signal acquisition module input 3401 and outputs via the rejection control signal acquisition module first output 3402, and the rejection stop control unit 342 generates a rejection stop signal and outputs via the rejection control signal acquisition module second output 3403.
In an alternative embodiment, the circuit structure of the rejection start control unit 341 includes an integrated chip U1 and an external circuit of the integrated chip U1, where the rejection control signal received by the input end 3401 of the rejection control signal obtaining module is the input signal of the integrated chip U1, and according to the received rejection control signal, the integrated chip U1 generates the rejection start signal to control the rejection mechanism to start after a certain time; similar to the rejection start control unit 341, the circuit structure of the rejection stop control unit 342 also includes the integrated chip U2 and an external circuit of the integrated chip U2, where the rejection control signal received by the rejection control signal acquisition module input 3401 is the input signal of the integrated chip U2, and according to the received rejection control signal, the integrated chip U2 generates the rejection stop signal to control rejection to stop working after a certain time. Alternatively, the integrated chip U1 and the integrated chip U2 are both CD4047 chips.
The desiccant neglected loading detection device provided by the embodiment is used for conducting desiccant neglected loading detection on the detected material by applying any one of the desiccant neglected loading detection methods in the embodiment, so that the desiccant neglected loading detection device has the advantages of the first embodiment, the desiccant neglected loading detection device in the embodiment obtains the desiccant detection information of the detected material through the metal detector and generates the first detection signal, the first trigger signal is generated according to the first detection signal, the position information of the detected material is obtained through the photoelectric detector and generates the second detection signal, the second trigger signal is obtained through a specific circuit structure, the rejection control signal is generated through the cooperation of the first trigger signal and the second trigger signal, rejection of the detected material neglected loading of the desiccant can be accurately completed, and compared with the conventional technology, the cost of the desiccant neglected loading detection device is effectively reduced through the position information of the detected material through the image acquisition device and the image processing device.
Example III
The embodiment provides a desiccant neglected loading detecting system, which comprises a conveying mechanism for conveying a detected material, a detecting mechanism 3 for detecting the desiccant neglected loading of the detected material, and a rejecting mechanism 4 for rejecting the detected material of the desiccant neglected loading, wherein the detecting mechanism 3 comprises any one of the desiccant neglected loading detecting devices in the second embodiment.
Referring to fig. 9, in the desiccant neglected loading detection system of the present embodiment, the detection mechanism 3 includes a desiccant neglected loading detection device and a detection channel (not shown) for installing the desiccant neglected loading detection device, and when in use, a material to be detected is conveyed by a conveying mechanism (not shown), and when the material to be detected is conveyed to the detection channel in the detection mechanism 3, the desiccant neglected loading detection device arranged in the detection channel detects the desiccant of the material to be detected and generates a rejection control signal, and when the desiccant in the material to be detected is neglected loading, the rejection mechanism 4 rejects the material to be detected of the desiccant neglected loading according to the generated rejection control signal.
Referring to fig. 9 and 10, in the desiccant neglected loading detection system of the present embodiment, the rejection mechanism 4 includes a rejection control module 41 and a rejection action module 42, where the rejection control module 41 is configured to obtain a rejection control signal generated by the rejection control signal obtaining module 34 and generate a rejection action signal, and the rejection action module 42 may perform a rejection action on a measured material neglected loaded by the desiccant according to the rejection action signal. The rejection control module 41 includes a rejection control module first input terminal 4101, a rejection control module second input terminal 4102, a rejection control module output terminal 4103, an external circuit of the integrated chip U3A and the integrated chip U3A, the rejection control module first input terminal 4101 is used for receiving a rejection start control signal and is electrically connected with a rejection control signal acquisition module first output terminal 3402 in the detection mechanism, the rejection control module second input terminal 4102 is used for receiving a rejection stop control signal and is electrically connected with a rejection control signal acquisition module second output terminal 3403 in the detection mechanism, and according to the acquired rejection start control signal and rejection stop control signal, the rejection control module 41 generates a rejection action signal and outputs the rejection action signal through the rejection control module output terminal 4103. Two input ends are arranged in the integrated chip U3A and are respectively and electrically connected with the first input end 4101 of the rejection control module and the second input end 4102 of the rejection control module, optionally, the integrated chip U3A is a CD4014 chip, the integrated chip U3A is connected with the transistor Q1 through the resistor R3, the emitter of the transistor Q1 is grounded through the diode D1, and the emitter of the transistor Q1 is connected with the output end 4103 of the rejection control module so as to output a rejection action signal.
The desiccant neglected loading detection system provided by the embodiment comprises any one of the desiccant neglected loading detection devices described in the second embodiment, so that the desiccant neglected loading detection system has the beneficial effects of the second embodiment as well.
The foregoing embodiments are merely illustrative of the principles of the present application and their effectiveness, and are not intended to limit the application. Modifications, variations, or combinations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications and variations which may be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the disclosure be covered by the claims of this application.
Claims (11)
1. A method for detecting missing drying agent, comprising:
acquiring detection signals, wherein the detection signals comprise a first detection signal and a second detection signal which are sequentially acquired according to time sequence, the first detection signal is desiccant detection information of a detected material, and the second detection signal is position information of the detected material;
acquiring a first trigger signal according to the first detection signal, wherein the first trigger signal is in a logic low level state when the desiccant in the detected material is detected in the detection channel, and is in a logic high level state when the desiccant in the detected material is neglected to be loaded;
Acquiring a second trigger signal according to the second detection signal, and jumping the second trigger signal from a logic low level state to a logic high level state when the detected material completely passes through the outlet of the detection channel;
processing the first trigger signal and the second trigger signal to generate a rejection control trigger signal;
and acquiring a rejection control signal according to the rejection control trigger signal, and controlling a rejection mechanism to reject the detected material which is leaked from the drying agent.
2. The desiccant neglected loading detection method according to claim 1, wherein the first detection signal is obtained by a metal detector; and acquiring the second detection signal through a photoelectric detector.
3. The method of claim 1, wherein the step of obtaining a first trigger signal comprises the steps of:
acquiring an inverted signal of the first detection signal and recording the inverted signal as a first inverted signal;
acquiring a first front-end signal according to the first reverse phase signal;
acquiring an inverted signal of the first front-end signal as the first trigger signal, wherein when the first inverted signal is an inverted signal of a first jump signal, the first front-end signal jumps from a logic low level state to a logic high level state, the first trigger signal jumps from the logic high level state to the logic low level state, and the first jump signal jumps from the logic low level state to the logic high level state;
After the first trigger signal jumps from the logic high level state to the logic low level state, the first trigger signal is kept to be in the logic low level state and the duration time is recorded as a second duration time t2.
4. The desiccant missing-loading detection method according to claim 3, wherein when the second detection signal is a third transition signal, the second trigger signal transitions from a logic low level state to a logic high level state, and the third transition signal is a transition signal that the second detection signal transitions from a logic high level state to a logic low level state.
5. The method for detecting a missing desiccant package according to claim 4, wherein for the same material to be detected, a time interval between a time when the first detection signal is a first transition signal and a time when the second trigger signal is a fourth transition signal is recorded as a third time period t3, and the second time period t2 is greater than or equal to the third time period t3, wherein the fourth transition signal is a transition signal when the second trigger signal transitions from a logic low level state to a logic high level state.
6. The desiccant missing detection method of claim 1, wherein generating a rejection control trigger signal includes the steps of:
Performing logic operation processing on the first trigger signal and the second trigger signal to obtain a second front-end signal, wherein when the first trigger signal and the second trigger signal are both in a logic high level state, the second front-end signal is in a logic low level state, and when at least one of the first trigger signal and the second trigger signal is in a logic low level state, the second front-end signal is in a logic high level state;
and generating the rejection control trigger signal according to the second front-end signal, wherein the rejection control trigger signal is an inverse signal of the second front-end signal.
7. A desiccant neglected loading detection apparatus for performing the desiccant neglected loading detection method as recited in any one of claims 1 to 6, comprising:
the detection module comprises a first detection unit and a second detection unit, wherein the first detection unit is used for detecting a drying agent in a detected material and generating a first detection signal, and the second detection unit is used for detecting position information of the detected material and generating a second detection signal;
the trigger signal acquisition module is used for acquiring the first detection signal and the second detection signal from the detection module, generating a first trigger signal according to the first detection signal and generating a second trigger signal according to the second detection signal;
The rejection control trigger signal acquisition module is used for acquiring the first trigger signal and the second trigger signal from the trigger signal acquisition module and generating rejection control trigger signals according to the first trigger signal and the second trigger signal;
and the rejection control signal acquisition module is used for acquiring the rejection control trigger signal from the rejection control trigger signal acquisition module so as to generate a rejection control signal, wherein the rejection control signal is used for controlling the tested materials of which the rejection drying agent is leaked.
8. The desiccant neglected loading detection apparatus according to claim 7, wherein the trigger signal acquisition module comprises:
the first logic unit is used for acquiring the first detection signal from the detection module and generating a first inversion signal according to the first detection signal;
the first front-end signal acquisition unit is used for acquiring the first inverted signal from the first logic unit and generating a first front-end signal according to the first inverted signal;
the second logic unit is used for acquiring the first front-end signal from the first front-end signal acquisition unit and generating the first trigger signal;
the second trigger signal acquisition unit is used for acquiring the second detection signal from the detection module and generating the second trigger signal according to the second detection signal.
9. The desiccant neglected loading detection apparatus according to claim 7, wherein the rejection control trigger signal acquisition module comprises:
the third logic unit is used for acquiring the first trigger signal and the second trigger signal from the trigger signal acquisition module and generating a second front-end signal according to the first trigger signal and the second trigger signal;
and the fourth logic unit is used for acquiring the second front-end signal from the third logic unit and generating a rejection control trigger signal according to the second front-end signal.
10. The desiccant neglected loading detection apparatus according to claim 7, wherein the rejection control signal acquisition module includes a rejection start control unit for acquiring a rejection start signal in the rejection control signal and a rejection stop control unit for acquiring a rejection stop signal in the rejection control signal.
11. A desiccant neglected loading detection system, characterized by comprising a conveying mechanism for conveying a detected material, a detection mechanism for detecting the detected material and a rejection mechanism for rejecting the detected material of a desiccant neglected loading, the detection mechanism comprising a desiccant neglected loading detection device according to any one of claims 7 to 10 and a detection channel for installing the desiccant neglected loading detection device.
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