CN115937189A - Product detection method, device and system - Google Patents
Product detection method, device and system Download PDFInfo
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- CN115937189A CN115937189A CN202211711629.8A CN202211711629A CN115937189A CN 115937189 A CN115937189 A CN 115937189A CN 202211711629 A CN202211711629 A CN 202211711629A CN 115937189 A CN115937189 A CN 115937189A
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Abstract
The application relates to the technical field of industrial vision, in particular to a product detection method, device and system, which can solve the problem that the binding of an ID number and an image is easy to misplace in the prior art. The product detection method is applied to an upper computer, the upper computer is respectively connected with a controller and at least two image acquisition devices, and the method comprises the following steps: receiving images of a product to be detected transmitted by the image acquisition devices, wherein when the product to be detected moves to one of the image acquisition devices, the controller triggers the image acquisition devices to shoot the image of the product to be detected and transmits the image to the upper computer; transmitting an identification request to a controller, and generating an identification corresponding to the product to be detected by the controller when the controller detects that the product to be detected moves to a first position; receiving an identifier corresponding to the identifier request transmitted by the controller, and determining that the identifier corresponds to the image; and determining the detection result of the product to be detected by detecting the images of the same set, wherein the identifications corresponding to the images of the same set are the same.
Description
Technical Field
The application relates to the technical field of industrial vision, in particular to a product detection method, device and system.
Background
The machine vision detection system generally firstly obtains an image of an object to be detected through an image acquisition unit, then utilizes a computer to perform image processing on the image to obtain related detection information of the object to be detected, forms a judgment decision for the object to be detected, and finally completes the sorting of the object to be detected according to the decision information.
In the prior art, a plurality of imaging stations are arranged in a machine vision inspection system, and each imaging station is provided with an image acquisition device. When the object to be detected moves to a first position on the assembly line, the controller generates an ID number; when the object to be detected continues to move to the periphery of each imaging station provided with the image acquisition device on the production line, the controller controls the image acquisition device at the imaging station to shoot the object to be detected to obtain an image corresponding to the object to be detected; and when the upper computer acquires the image sent by each image acquisition unit, the upper computer also acquires the ID number sent by the control unit and binds the ID number and the image so as to enable the image of the same object to be detected to carry the same ID number. And then, the upper computer matches the images with the same ID number together, and then detects the images with the same ID number to obtain a detection result. Because the images with the same ID numbers are the images of the same object to be detected, the detection result can reflect whether the object to be detected is a bad product or not, and the bad product is removed.
Therefore, the ID number transmitted by the control unit is bound with the corresponding image transmitted by the image acquisition unit and is a reference of the detection result output by the upper computer. In the process of binding the ID number and the image, the upper computer adopts double-queue matching, namely the ID number queue and the image queue are sequentially matched, but if communication abnormity or communication interference occurs, the upper computer receives ID number information for one time, or because the acquisition card transmitting the image acquired by the image acquisition unit triggers abnormity, the upper computer acquires one image for less time, the binding or the matching of the ID number and the image is staggered, so that waste rejection and dislocation are caused, the risk of putting the defective product is caused, and meanwhile, if the binding is staggered for 1 time, the subsequent binding can be continuously staggered, so that major quality risk is caused.
Disclosure of Invention
In order to solve the problem that the binding of an ID number and an image is easy to misplace in the prior art, the application provides a product detection method, a device and a system.
The embodiment of the application is realized as follows:
the embodiment of the application provides a product detection method, is applied to the host computer, the host computer is connected with controller and two at least image acquisition devices respectively, includes:
receiving an image of a product to be detected transmitted by the image acquisition device, wherein when the product to be detected moves to a corresponding position of one of the image acquisition devices, the controller triggers the image acquisition device to shoot the image of the product to be detected and transmits the image to the upper computer;
transmitting an identification request to the controller, wherein the controller generates an identification corresponding to the product to be detected when detecting that the product to be detected moves to a first position;
receiving the identifier corresponding to the identifier request transmitted by the controller, and determining that the identifier corresponds to the image;
and determining the detection result of the product to be detected by detecting the images of the same set, wherein the identifications corresponding to the images of the same set are the same.
In some embodiments, after transmitting the identification request to the controller, further comprising:
if the identification corresponding to the identification request is not received within a preset time period, transmitting the identification request to the controller again;
and if the identifier is not received after n times of identifier requests are transmitted to the controller, generating warning information, wherein n is an integer greater than or equal to 1.
In some embodiments, further comprising:
and if the identifier is not received after the identifier request is transmitted to the controller for n times, executing a detection refusing operation on the image.
Another embodiment of the present application further provides a product detection method, which is applied to a controller, where the controller is connected to an upper computer and at least two image acquisition devices respectively, and the method includes:
when detecting that a product to be detected moves to a first position, generating an identifier corresponding to the product to be detected and storing the identifier;
when the product to be detected moves to a corresponding position of one of the image acquisition devices, the controller triggers the image acquisition devices to shoot images of the product to be detected and triggers the image acquisition devices to transmit the images to the upper computer;
after receiving an identification request transmitted by the upper computer, transmitting the stored identification to the upper computer, wherein the identification is used for the upper computer to determine whether the images belong to the same set, and the identifications corresponding to the images of the same set are the same.
In some embodiments, after receiving the identifier request transmitted by the upper computer, transmitting the stored identifier to the upper computer, including:
after receiving an identification request signal transmitted by the upper computer, if the image is shot by an image acquisition device closest to a first position, transmitting an identification generated when the product to be detected moves to the first position to the upper computer;
and if the image is shot by any image acquisition device except the image acquisition device closest to the first position, transmitting the identifier which is the same as the identifier transmitted at the previous time to the upper computer.
In some embodiments, further comprising: and if the image is shot by any image acquisition device except the image acquisition device closest to the first position and the identifier is not transmitted to the upper computer in the previous time, transmitting the identifier generated when the product to be detected moves to the first position to the upper computer.
In some embodiments, the controller is further coupled to a position sensor, further comprising: and determining the moving position of the product to be detected based on the information transmitted by the position sensor.
Another embodiment of this application still provides a product detection device, is applied to the host computer, the host computer is connected with controller and two at least image acquisition device respectively, includes:
the first receiving module is used for receiving the image of the product to be detected transmitted by the image acquisition device, wherein when the product to be detected moves to a corresponding position of one of the image acquisition devices, the controller triggers the image acquisition device to shoot the image of the product to be detected and transmits the image to the upper computer;
the first generation module is used for transmitting an identification request to the controller, and the controller generates an identification corresponding to the product to be detected when detecting that the product to be detected moves to a first position;
the second receiving module is used for receiving the identifier corresponding to the identifier request transmitted by the controller and determining that the identifier corresponds to the image;
the detection module is used for determining the detection result of the product to be detected by detecting the images of the same set, and the identifications corresponding to the images of the same set are the same.
Another embodiment of this application still provides a product detection device, is applied to the controller, the controller is connected with host computer and two at least image acquisition devices respectively, includes:
the second generation module is used for generating and storing an identifier corresponding to the product to be detected when the product to be detected is detected to move to the first position;
the triggering module is used for triggering the image acquisition device to shoot an image of the product to be detected and triggering the image acquisition device to transmit the image to the upper computer when the product to be detected moves to a position corresponding to one of the image acquisition devices;
the transmission module is used for transmitting the stored identification to the upper computer after receiving the identification request transmitted by the upper computer, wherein the identification is used for the upper computer to determine whether the images belong to the same set, and the identifications corresponding to the images in the same set are the same.
The embodiment of the application also provides a product detection system, which comprises an upper computer, an image acquisition device and a controller, wherein the upper computer, the image acquisition device and the controller are interconnected in a communication manner; the upper computer is used for executing the product detection method, and the controller is used for executing the product detection method.
The beneficial effect of this application: by changing the transmission mode of the identification, the double-queue matching relation of the upper computer is cancelled, the identification request is sent to the controller after the image is received by the upper computer, and the identification is uploaded to the upper computer by the controller under the condition that the identification request is received by the controller;
for example, if the image that an image acquisition device gathered loses, then the host computer can not receive the image, and the host computer also can not obtain the sign from the control unit register, if follow-up host computer received the image that next image acquisition unit gathered, then the host computer initiative from controlling the sign and obtaining the sign to bind image and sign, it is correct that the sign that the host computer acquireed still can be guaranteed to this application under the abnormal conditions and the matching relation of image.
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 description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic diagram illustrating a product inspection system provided by an embodiment of the present application;
FIG. 2 is a schematic flow chart illustrating a product inspection method according to another embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating a product inspection method according to another embodiment of the present application;
fig. 4 is a block diagram illustrating a product inspection device applied to an upper computer according to another embodiment of the present application;
fig. 5 is a block diagram illustrating a product detection device applied to a controller according to another embodiment of the present application;
fig. 6 is a flowchart illustrating an interaction process of an upper computer, an image capturing device, and a controller in a product inspection system according to still another embodiment of the present application.
Detailed Description
To make the objects, embodiments and advantages of the present application clearer, the following description of exemplary embodiments of the present application will clearly and completely describe the exemplary embodiments of the present application with reference to the accompanying drawings in the exemplary embodiments of the present application, and it is to be understood that the described exemplary embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It should be noted that the brief descriptions of the terms in the present application are only for convenience of understanding of the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.
The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
The terms "disposed" and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
Fig. 1 exemplarily shows a schematic diagram of a product detection system provided in an embodiment of the present application, and as shown in fig. 1, the product detection system includes an upper computer, a controller in communication connection with the upper computer, a position sensor in communication connection with the controller, an image acquisition device in communication connection with the controller, an eliminating mechanism in communication connection with the controller, and a conveying mechanism for conveying a product to be detected. In the process of conveying the to-be-detected product by the conveying mechanism, the position sensor is used for detecting the position of the to-be-detected product, the image acquisition device is used for shooting the image of the to-be-detected product, the upper computer and the controller are used for controlling the position sensor, the image acquisition device and the rejection mechanism and are used for detecting the to-be-detected product, and the rejection mechanism is used for rejecting the product with a detection result of being a bad product.
Fig. 2 schematically illustrates a flowchart of a product inspection method according to another embodiment of the present application.
As shown in fig. 2, the product detection method provided in the embodiment of the present application is applied to an upper computer, and the upper computer is respectively connected with a controller and at least two image acquisition devices, and includes the following steps:
in step 210, receiving an image of a product to be detected transmitted by an image acquisition device, wherein when the product to be detected moves to a corresponding position of one of the image acquisition devices, a controller triggers the image acquisition device to shoot the image of the product to be detected and transmits the image to an upper computer;
in some embodiments, the corresponding position of the image capture device is located after the first position, according to the transport direction of the transport mechanism when transporting the product to be tested.
In step 220, an identification request is transmitted to the controller, and the controller generates an identification corresponding to the product to be tested when detecting that the product to be tested moves to the first position.
In some embodiments, the identifiers corresponding to different products to be detected are different, and may be ID numbers, for example, when the controller detects that the product 1 to be detected moves to the first position, the controller generates the identifier 001 corresponding to the product 1 to be detected, and when the controller detects that the product 2 to be detected moves to the first position, the controller generates the identifier 002 corresponding to the product 2 to be detected, and so on, the identifiers corresponding to different products to be detected are generated, and may be continuous numbers or other identifier rules, as long as it is ensured that different products to be detected correspond to different identifiers.
In step 230, receiving an identifier corresponding to the identifier request transmitted by the controller, and determining that the identifier corresponds to the image;
in step 240, the detection result of the product to be detected is determined by detecting the images in the same set, and the identifications corresponding to the images in the same set are the same.
In some embodiments, at least two image capturing devices are generally provided, and these image capturing devices capture images of the product to be tested to obtain images of the product to be tested in different aspects. For example, the image acquisition device can acquire an image containing the shape or color of the product to be detected, and also can acquire a three-dimensional (such as air bubbles, scratches, embossments and pits) image of the product to be detected, and the images with the same identification are gathered together for detection, so as to determine the detection result of the product to be detected.
When determining the detection result of the product to be detected, mainly judging whether the images of the same set are matched with the template images: if at least one image in the same set is not matched with the template image, judging the product to be detected with the corresponding identification of the set as a bad product; and if the images in the same set are matched with the template images, judging the product to be detected with the corresponding identification of the set as a good product.
In some embodiments, after transmitting the identification request to the controller, further comprising:
if the identifier corresponding to the identifier request is not received within the preset time period, transmitting the identifier request to the controller again;
and if the identifier is not received after n times of identifier requests are transmitted to the controller, generating warning information, wherein n is an integer greater than or equal to 1, and the value of n can be 1, 2, 3 or 4.
In some embodiments, if no identification is received after n times of identification requests are transmitted to the controller, a rejection operation is performed on the image.
According to the method, the controller does not actively upload the identifier to the upper computer any more, but forms a master-slave communication mode with the upper computer, only allows the upper computer to actively acquire the ID number from the controller, and solves the problem that the identifier and the image are bound and dislocated due to abnormal conditions;
for example, if the image that an image acquisition device gathered loses, then the host computer can not receive the image, and the host computer also can not obtain the sign from the control unit register, if follow-up host computer received the image that next image acquisition unit gathered, then the host computer initiative from controlling the sign and obtaining the sign to bind image and sign, it is correct that the sign that the host computer acquireed still can be guaranteed to this application under the abnormal conditions and the matching relation of image.
Fig. 3 schematically illustrates a flowchart of a product inspection method according to another embodiment of the present application.
As shown in fig. 3, the product detection method provided in the embodiment of the present application is applied to a controller, and the controller is respectively connected to an upper computer and at least two image acquisition devices, and includes the following steps:
in step 310, when the product to be detected is detected to move to the first position, generating and storing an identifier corresponding to the product to be detected;
in step 320, when the product to be detected moves to a position corresponding to one of the image acquisition devices, the controller triggers the image acquisition device to shoot an image of the product to be detected and triggers the image acquisition device to transmit the image to the upper computer;
in some embodiments, the corresponding position of the image capture device is located after the first position according to the transport direction of the transport mechanism when transporting the product to be tested.
In step 330, after receiving the identifier request transmitted by the upper computer, transmitting the stored identifier to the upper computer, wherein the identifier is used for the upper computer to determine whether the images belong to the same set, and the identifiers corresponding to the images in the same set are the same.
In some embodiments, after receiving the identification request transmitted by the upper computer, transmitting the stored identification to the upper computer, including the following steps:
after receiving an identification request signal transmitted by an upper computer, if an image is shot by an image acquisition device closest to a first position, transmitting an identification generated when a product to be detected moves to the first position to the upper computer;
and if the image is shot by any image acquisition device except the image acquisition device closest to the first position, transmitting the identifier which is the same as the identifier transmitted in the previous time to the upper computer.
In some embodiments, if the image is shot by any one of the image acquisition devices except the image acquisition device closest to the first position and the identifier is not transmitted to the upper computer in the previous time, the identifier generated when the product to be detected moves to the first position is transmitted to the upper computer.
Through the embodiment, when the controller generates the identifiers corresponding to the products to be detected, the identifiers transmitted to the upper computer correspond to the products to be detected after the identifier request transmitted by the upper computer is received.
In some embodiments, the controller of the present application is further connected to a position sensor, and further comprises: and determining the moving position of the product to be detected based on the information transmitted by the position sensor. When the product to be tested is located at the first position, the controller is triggered and an identifier corresponding to the product to be tested is generated.
According to the method, the controller does not actively upload the identifier to the upper computer any more, but forms a master-slave communication mode with the upper computer, only allows the upper computer to actively acquire an ID number from the controller, and solves the problem that the identifier and the image are bound and dislocated due to abnormal conditions;
for example, if the image that an image acquisition device gathered is lost, then the host computer can not receive the image, and the host computer also can not obtain the sign from the control unit register, if follow-up host computer received the image that next image acquisition unit gathered, then the host computer initiative from the controller obtain the sign to bind image and sign, it is right to see this application can still guarantee the sign that the host computer obtained under the abnormal conditions and the matching relation of image is correct.
Fig. 4 exemplarily shows a structural block diagram of a product detection apparatus applied to an upper computer according to another embodiment of the present application, and as shown in fig. 4, a product detection apparatus 400 is applied to an upper computer, and the upper computer is respectively connected to a controller and at least two image acquisition devices, and includes: a first receiving module 410, a first generating module 420, a second receiving module 430, and a detecting module 440, wherein:
the first receiving module is used for receiving the images of the products to be detected transmitted by the image acquisition devices, wherein when the products to be detected move to a position corresponding to one of the image acquisition devices, the controller triggers the image acquisition devices to shoot the images of the products to be detected and transmits the images to the upper computer;
the first generation module is used for transmitting an identification request to the controller, and the controller generates an identification corresponding to the product to be detected when detecting that the product to be detected moves to the first position;
the second receiving module is used for receiving the identifier corresponding to the identifier request transmitted by the controller and determining that the identifier corresponds to the image;
and the detection module is used for determining the detection result of the product to be detected by detecting the images in the same set, and the identifications corresponding to the images in the same set are the same.
Fig. 5 exemplarily shows a block diagram of a product detection apparatus applied to a controller according to another embodiment of the present application, and as shown in fig. 5, a product detection apparatus 500 is applied to a controller, and the controller is respectively connected to an upper computer and at least two image capturing devices, and includes: a second generation module 510, a triggering module 520, and a transmission module 530, wherein:
a second generating module 510, configured to generate and store an identifier corresponding to the product to be detected when it is detected that the product to be detected moves to the first position;
the triggering module 520 is used for triggering the image acquisition device to shoot an image of the product to be detected and triggering the image acquisition device to transmit the image to the upper computer when the product to be detected moves to a position corresponding to one of the image acquisition devices;
the transmission module 530 is configured to transmit the stored identifier to the upper computer after receiving the identifier request transmitted by the upper computer, where the identifier is used by the upper computer to determine whether the images belong to the same set, and the identifiers corresponding to the images in the same set are the same.
Fig. 6 is a flowchart illustrating an interaction process of an upper computer, an image capturing device, and a controller in a product inspection system according to still another embodiment of the present application.
As shown in fig. 6, the product detection system provided by the embodiment of the application includes an upper computer, an image acquisition device and a controller, wherein the upper computer, the image acquisition device and the controller are interconnected through communication; the upper computer, the image acquisition device and the controller respectively execute the following steps in the product detection method:
step 610, when detecting that the product to be detected moves to the first position, the controller generates an identifier corresponding to the product to be detected;
step 620, when the product to be detected moves to a position corresponding to one of the image acquisition devices, the controller triggers the image acquisition devices;
step 630, shooting an image of the product to be detected by the image acquisition device and transmitting the image of the product to be detected to an upper computer;
step 640, after receiving the image corresponding to the product to be detected, the upper computer transmits an identification request to the controller;
step 650, after receiving the identification request, the controller transmits the stored identification to the upper computer;
step 660, the upper computer receives the identifier corresponding to the identifier request transmitted by the controller, and determines that the identifier corresponds to the image;
step 670, the upper computer determines the detection result of the product to be detected by detecting the images of the same set, and the identifications corresponding to the images of the same set are the same.
According to the method, the controller does not actively upload the identifier to the upper computer any more, but forms a master-slave communication mode with the upper computer, only allows the upper computer to actively acquire the ID number from the controller, and solves the problem that the identifier and the image are bound and dislocated due to abnormal conditions;
for example, if the image that an image acquisition device gathered is lost, then the host computer can not receive the image, and the host computer also can not obtain the sign from the control unit register, if follow-up host computer received the image that next image acquisition unit gathered, then the host computer initiative from the controller obtain the sign to bind image and sign, it is right to see this application can still guarantee the sign that the host computer obtained under the abnormal conditions and the matching relation of image is correct.
It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing based data processing logic devices, etc., without limitation.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims (10)
1. The product detection method is characterized by being applied to an upper computer, wherein the upper computer is respectively connected with a controller and at least two image acquisition devices, and the product detection method comprises the following steps:
receiving an image of a product to be detected transmitted by the image acquisition device, wherein when the product to be detected moves to a corresponding position of one of the image acquisition devices, the controller triggers the image acquisition device to shoot the image of the product to be detected and transmits the image to the upper computer;
transmitting an identification request to the controller, wherein the controller generates an identification corresponding to the product to be detected when detecting that the product to be detected moves to a first position;
receiving the identification corresponding to the identification request transmitted by the controller, and determining that the identification corresponds to the image;
and determining the detection result of the product to be detected by detecting the images of the same set, wherein the identifications corresponding to the images of the same set are the same.
2. The product detection method of claim 1, after transmitting an identification request to the controller, further comprising:
if the identification corresponding to the identification request is not received within a preset time period, transmitting the identification request to the controller again;
and if the identifier is not received after n times of identifier requests are transmitted to the controller, generating warning information, wherein n is an integer greater than or equal to 1.
3. The product detection method according to claim 1 or 2, further comprising:
and if the identifier is not received after the identifier request is transmitted to the controller for n times, executing a detection refusing operation on the image.
4. A product detection method is characterized in that the method is applied to a controller, the controller is respectively connected with an upper computer and at least two image acquisition devices, and the method comprises the following steps:
when detecting that a product to be detected moves to a first position, generating an identifier corresponding to the product to be detected and storing the identifier;
when the product to be detected moves to a corresponding position of one of the image acquisition devices, the controller triggers the image acquisition devices to shoot images of the product to be detected and triggers the image acquisition devices to transmit the images to the upper computer;
after receiving an identification request transmitted by the upper computer, transmitting the stored identification to the upper computer, wherein the identification is used for the upper computer to determine whether the images belong to the same set, and the identifications corresponding to the images of the same set are the same.
5. The product detection method of claim 4, wherein transmitting the stored identification to the upper computer after receiving an identification request transmitted by the upper computer, comprises:
after receiving an identification request signal transmitted by the upper computer, if the image is shot by an image acquisition device closest to a first position, transmitting an identification generated when the product to be detected moves to the first position to the upper computer;
and if the image is shot by any image acquisition device except the image acquisition device closest to the first position, transmitting the identifier which is the same as the identifier transmitted at the previous time to the upper computer.
6. The product detection method of claim 5, further comprising: and if the image is shot by any image acquisition device except the image acquisition device closest to the first position and the identifier is not transmitted to the upper computer in the previous time, transmitting the identifier generated when the product to be detected moves to the first position to the upper computer.
7. The product detection method of any one of claims 4-6, wherein the controller is further coupled to a position sensor, further comprising: and determining the moving position of the product to be detected based on the information transmitted by the position sensor.
8. The utility model provides a product detection device which characterized in that is applied to the host computer, the host computer is connected with controller and two at least image acquisition device respectively, includes:
the first receiving module is used for receiving the image of the product to be detected transmitted by the image acquisition device, wherein when the product to be detected moves to a corresponding position of one of the image acquisition devices, the controller triggers the image acquisition device to shoot the image of the product to be detected and transmits the image to the upper computer;
the first generation module is used for transmitting an identification request to the controller, and the controller generates an identification corresponding to the product to be detected when detecting that the product to be detected moves to a first position;
the second receiving module is used for receiving the identifier corresponding to the identifier request transmitted by the controller and determining that the identifier corresponds to the image;
the detection module is used for determining the detection result of the product to be detected by detecting the images of the same set, and the identifications corresponding to the images of the same set are the same.
9. The utility model provides a product detection device which characterized in that is applied to the controller, the controller is connected with host computer and two at least image acquisition device respectively, includes:
the second generation module is used for generating and storing an identifier corresponding to the product to be detected when the product to be detected is detected to move to the first position;
the triggering module is used for triggering the image acquisition device to shoot an image of the product to be detected and triggering the image acquisition device to transmit the image to the upper computer when the product to be detected moves to a corresponding position of one of the image acquisition devices;
and the transmission module is used for transmitting the stored identification to the upper computer after receiving the identification request transmitted by the upper computer, wherein the identification is used for the upper computer to determine whether the images belong to the same set, and the identifications corresponding to the images in the same set are the same.
10. The product detection system is characterized by comprising an upper computer, an image acquisition device and a controller, wherein the upper computer, the image acquisition device and the controller are interconnected in a communication manner; the upper computer is used for executing the product detection method of any one of claims 1 to 3, and the controller is used for executing the product detection method of any one of claims 4 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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