Tester, load board and flat cable detection system

Abstract

The invention is suitable for the technical field of electronic circuits, and provides a tester, a load board and a flat cable detection system.The tester is provided with a first processor, a display device, a plurality of test stations and driving power sources connected with the test stations respectively, each test station is connected with one test station of the load board through a flat cable, and the first processor is connected with the display device. Each test station is connected with a protective resistor and an indicating lamp, and each test station, the driving power supply, the flat cable, one of the test stations, the protective resistor and the indicating lamp form a respective communication loop; the first processor generates a flat cable detection result of each communication loop based on the lamp parameters of the indicating lamp in each communication loop, wherein the flat cable detection result is used for representing whether the test station currently connected with the flat cable has a specified association relationship with the test station; and controlling the display device to display the flat cable detection result. The tester can rapidly and accurately detect the connection relation of the flat cables in each communication loop, and material mixing accidents are avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic circuits, and particularly relates to a tester, a load board and a flat cable detection system. BACKGROUND

[0002] The semiconductor industry chain has developed to date, and there is a relatively complete process flow from chip design, simulation, wafer foundry, middle-stage testing, chip packaging, late-stage testing to product delivery. The testing link in the whole process is a more delicate link than the processing procedure. For example, factors such as setting of device parameters, device precision, personnel operation specification, process operation environment control and design rationality have a strict requirement. In recent years, the quality requirement for testing is increasingly strict in aspects such as through silicon via (TSV) technology, CMOS image sensor (CIS), radio frequency (RF) and automotive chip, and indicators such as mixing, bending angle, skewing and exposed substrate have become important evaluation indicators in the testing process. Among them, the mixing accident is the most important evaluation indicator.

[0003] In actual production, due to some factors such as cost, equipment and product itself, a cable needs to be used to connect various testing devices and jigs to form a testing system in the design of a testing scheme. When the cable is actually used, flat cables are used for different testing items, but it is difficult to avoid that flat cables are inserted reversely or incorrectly in personnel operation, which finally causes mixing of products in the testing process and causes serious product quality accidents. Therefore, how to quickly and accurately detect the connection relationship of the flat cable in the chip testing process is a problem to be solved at present. SUMMARY

[0004] The application embodiment provides a tester, a load board and a flat cable detection system, which can quickly and accurately detect whether there is a specified association relationship between the testing station and the testing station to which the flat cable is currently connected in each communication loop, avoid mixing accidents of products in the testing process, and thus improve product quality.

[0005] In a first aspect, the application embodiment provides a tester, which is configured with a first processor, a display device, a plurality of testing stations and a driving power supply connected with each testing station respectively, wherein, Each test station is connected with one of the test stations of the load board through a flat cable, the load board is provided with a plurality of test stations, each test station is respectively connected with a protection resistor and an indicator, each test station, the driving power source connected with each test station, the flat cable, one of the test stations, and the protection resistor and the indicator connected with one of the test stations form a respective communication loop, and the first processor and the display device are respectively in communication connection with each test station; The first processor is configured to perform: obtain lamp parameters of the indicator in each communication loop; generate a flat cable detection result corresponding to each communication loop based on the lamp parameters of each communication loop, the flat cable detection result being used to represent whether the test station and the test station currently connected by the flat cable in each communication loop exist a specified association relationship; control the display device to display the flat cable detection result corresponding to each communication loop.

[0006] In a possible implementation manner of the first aspect, generating the flat cable detection result corresponding to each communication loop based on the lamp parameters of each communication loop comprises: for each communication loop, determining whether the lamp parameters corresponding to each communication loop are within a respective preset parameter range; if the lamp parameters corresponding to at least one communication loop are not within the preset parameter range, determining that the flat cable detection result corresponding to the at least one communication loop is used to represent that the test station and the test station currently connected by the flat cable do not exist the specified association relationship; if the lamp parameters corresponding to at least one communication loop are within the preset parameter range, determining that the flat cable detection result corresponding to the at least one communication loop is used to represent that the test station and the test station currently connected by the flat cable exist the specified association relationship.

[0007] In a possible implementation manner of the first aspect, the lamp parameters are actual parameters of the indicator under the condition that the flat cable currently connects the test station and the test station, and the preset parameter range includes theoretical parameters of the indicator under the condition that the test station and the test station connected by the flat cable exist the specified association relationship.

[0008] In a possible implementation manner of the first aspect, after generating the flat cable detection result corresponding to each communication loop based on the lamp parameters of each communication loop, the first processor further performs: generating a color control instruction corresponding to each communication loop according to the flat cable detection result corresponding to each communication loop, the color control instruction being used to adjust RGB parameters of the indicator in each communication loop; sending the color control instruction corresponding to each communication loop to the load board.

[0009] In a possible implementation manner of the first aspect, the color control instruction corresponding to each communication loop is generated according to the flat cable detection result corresponding to each communication loop, and the color control instruction corresponding to each communication loop includes: If the flat cable detection result corresponding to at least one communication loop is used to represent that the test station connected by the flat cable and the test station have the specified association relationship, a first control instruction corresponding to the at least one communication loop is generated, and the first control instruction is used to adjust the red and blue channels of the RGB parameter of the indicator light in the at least one communication loop to be closed and the green channel to be fully opened.

[0010] In a possible implementation manner of the first aspect, the color control instruction corresponding to each communication loop is generated according to the flat cable detection result corresponding to each communication loop, and the color control instruction corresponding to each communication loop includes: If the flat cable detection result corresponding to at least one communication loop is used to represent that the test station connected by the flat cable and the test station do not have the specified association relationship, a second control instruction corresponding to the at least one communication loop is generated, and the second control instruction is used to adjust the green and blue channels of the RGB parameter of the indicator light in the at least one communication loop to be closed and the red channel to be fully opened.

[0011] In the second aspect, the embodiments of the present application provide a load board, which is configured with a plurality of test stations, and a protection resistor and an indicator light connected to each test station respectively; The test instrument is configured with a first processor, a display device, a plurality of test stations, and a driving power supply connected to each test station respectively, each test station, the protection resistor and the indicator light connected to each test station, the flat cable, one of the test stations, and the driving power supply connected to the test station form a respective communication loop; The first processor is configured to perform: obtaining the lamp parameter of the indicator light in each communication loop; generating the flat cable detection result corresponding to each communication loop based on the lamp parameter of each communication loop, the flat cable detection result being used to represent whether the test station currently connected by the flat cable in each communication loop and the test station have the specified association relationship; and controlling the display device to display the flat cable detection result corresponding to each communication loop.

[0012] In a possible implementation manner of the second aspect, the load board is further configured with a second processor, and the second processor has a communication connection with the first processor; The second processor is configured to adjust the RGB parameter of the indicator light in each communication loop in response to the color control instruction corresponding to each communication loop sent by the first processor.

[0013] In the third aspect, the embodiments of the present application provide a flat cable detection system, which includes: A tester is configured with a first processor, a display device, a plurality of test stations, and a driving power source connected with each test station respectively; A load board is configured with a plurality of test sites, and a protection resistor and an indicator light connected with each test site respectively; Each test station is connected with one of the test sites through a cable, so that each test station, the driving power source connected with each test station, the cable, one of the test sites, and the protection resistor and the indicator light connected with one of the test sites form a respective communication loop, and the first processor and the display device are respectively communicatively connected with each test station; The first processor is configured to acquire a lamp parameter of the indicator light in each communication loop, and generate a cable detection result corresponding to each communication loop based on the lamp parameter of each communication loop, the cable detection result being used to represent whether a current test station connected with the cable and a current test site exist a specified association relationship; The display device is configured to display the cable detection result corresponding to each communication loop.

[0014] In a possible implementation of the third aspect, the load board is further configured with a second processor, and the second processor is communicatively connected with the first processor; The first processor is further configured to generate a color control instruction corresponding to each communication loop according to the cable detection result corresponding to each communication loop, and send the color control instruction corresponding to each communication loop to the second processor of the load board; The second processor is configured to adjust an RGB parameter of the indicator light in each communication loop in response to the color control instruction corresponding to each communication loop sent by the first processor.

[0015] An embodiment of the present application provides a tester, a load board, and a cable detection system. The tester is configured with a first processor, a display device, multiple test stations, and a driving power supply connected to each test station. Each test station is connected to one of the test stations of the load board via a cable. The load board is configured with multiple test stations. Each test station is connected to a protective resistor and an indicator light. Each test station, the driving power supply connected to each test station, the cable, one of the test stations, and the protective resistor and indicator light connected to one of the test stations form a respective communication loop. The first processor and the display device establish a communication connection with each test station respectively. The first processor is configured to execute: obtaining the lighting parameters of the indicator light in each communication loop; generating a cable detection result corresponding to each communication loop based on the lighting parameters of each communication loop, the cable detection result being used to characterize whether there is a specified association relationship between the test station and the test station to which the cable is currently connected in each communication loop; and controlling the display device to display the cable detection result corresponding to each communication loop. By utilizing the above technical solution, each test station in the tester is connected to a driving power supply, and each test station in the load board is connected to a protective resistor and an indicator light, so that each test station, the driving power supply connected to each test station, the cable, one of the test stations, and the protective resistor and indicator light connected to one of the test stations form their own communication circuit. The first processor of the tester can quickly and accurately detect whether there is a specified association relationship between the test station and the test station to which the cable is currently connected in each communication circuit based on the lamp parameters of each communication circuit, thereby avoiding product mixing accidents during the test process, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a structural block diagram of a tester provided in one embodiment of the present application; Figure 2 This is a flow chart of a method for detecting cable connection relationships in a tester provided in one embodiment of the present application; Figure 3 It is a structural diagram of a test system provided by the prior art; Figure 4 This is a structural block diagram of a load board provided in one embodiment of the present application; Figure 5 This is a schematic diagram of a circuit structure provided by an embodiment of the present application; Figure 6 is a structural block diagram of a flat cable detection system provided by an embodiment of the present application; Figure 7 is an architecture schematic diagram of flat cable connection relationship detection provided by an embodiment of the present application. DETAILED DESCRIPTION

[0018] In the following description, for the purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0019] It should be understood that the term "comprises" when used in this specification and the appended claims, specifies the presence of stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0020] It should also be understood that the term "and / or" when used in this specification and the appended claims, means any one or more of the associated listed items can be present, and includes multiples of any associated listed item.

[0021] As used in this specification and the appended claims, the term "if" can be interpreted as meaning "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [a described condition or event] is detected" can be interpreted to mean "upon determining" or "in response to determining" or "upon detecting [the described condition or event]" or "in response to detecting [the described condition or event]," depending on the context.

[0022] In addition, in the description of the specification and the appended claims, the terms "first", "second", "third", etc. are used only to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0023] Reference within the specification of this application to "one embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in some embodiments" in various places within specified descriptions in this specification are not necessarily all referring to the same embodiment, however, but can refer to one or more but not all embodiments. The terms "including," "comprising," "featuring," and variations thereof are meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms "coupled" and "connected," and variations thereof, are intended to encompass a connection between two members, directly or indirectly, which is rigid or flexible, fixed or moveable, or temporary or permanent.

[0024] It can be considered that due to the symmetrical distribution of test resources, the consistency of the cable, it is difficult, high cost and not easy to operate to solve the problem of connection relationship leakage of the cable in the chip testing process. Based on this, the test instrument, the load board and the cable detection system provided by the embodiment of the application can quickly and accurately automatically detect and warn the state of the cable in the test process, whether it is inserted incorrectly, improve the mixing problem caused by it, and is suitable for different detection scenes, has very high practicality, and is simple to operate. It can be widely used on many different test systems.

[0025] Figure 1 is a structural block diagram of a test instrument provided by an embodiment of the application, as Figure 1 shown, the test instrument is configured with a first processor, a display device, a plurality of test stations (three are taken as an example in the figure, including test station 1, test station 2 and test station 3), and a driving power supply (including driving power supply 1, driving power supply 2 and driving power supply 3) connected with each test station respectively, and the first processor and the display device are respectively in communication connection with each test station.

[0026] Among them, each test station is connected with one of the test stations of the load board through the cable, the load board is configured with a plurality of test stations, each test station is respectively connected with a protection resistor and an indicator, each test station, the driving power supply connected with each test station, the cable, one of the test stations, and the protection resistor and the indicator connected with one of the test stations form a respective communication loop, and the first processor and the display device are respectively in communication connection with each test station.

[0027] The first processor is configured to perform: acquiring the lamp parameter of the indicator in each communication loop; generating the cable detection result corresponding to each communication loop based on the lamp parameter of each communication loop, the cable detection result being used to represent whether there is a specified association relationship between the test station and the test station currently connected by the cable in each communication loop; and controlling the display device to display the cable detection result corresponding to each communication loop.

[0028] In the embodiment, the load board (LB) can arrange test stations in a chip layout, such as 8x8, 64 sites. The test station in the tester can refer to a specific area or unit in the tester for placing the object under test and performing various test operations, which can also be represented by "Site". Further, the tester can be communicatively connected with the load board. The connection can be achieved by connecting each test station with one test station of the load board through a cable. In addition, each test station is connected with a protection resistor and an indicator light. Each test station, the driving power source connected with the test station, the cable, one test station, and the protection resistor and the indicator light connected with the test station can form a respective communication loop. Thus, the first processor in the tester can automatically detect and display the use of the cable by processing the parameters in the multiple communication loops.

[0029] Figure 2 is a flowchart of a method for detecting the connection relationship of a cable in a tester according to an embodiment of the present application, as shown in Figure 2 , the method comprises: S101, obtaining the lamp parameter of the indicator light in each communication loop.

[0030] The lamp parameter is used to represent the parameter data related to the indicator light, such as the voltage value and / or the current value of the indicator light.

[0031] S102, generating the cable detection result corresponding to each communication loop based on the lamp parameter of each communication loop.

[0032] The cable detection result is used to represent whether the test station and the test station currently connected by the cable in each communication loop have a specified association relationship.

[0033] It can be considered that, in theory, the test station in the tester and the test station in the LB board have a one-to-one specified association relationship. However, if the cable is inserted incorrectly, the physical position of the chip in the handler and the logical position of the chip in the tester cannot be one-to-one corresponding, and a quality accident occurs.

[0034] Figure 3 is a structural diagram of a test system provided by the prior art, as shown in Figure 3 , the test system can be composed of a handler, a tester, a LB board, a cable, etc. In chip testing, the Site relationship of each part is one-to-one corresponding, as shown in Figure 3As shown by the middle solid line, the test station Site1 in the tester is connected to the test site Site1 in the LB board, and the test station Site2 is connected to the test site Site2. The physical positions of the chips at the handler are classified according to the sites, and the logical positions of the chips at the tester are also classified according to the sites. For example, the Site1 bin6 of the tester corresponds to the Site1 bin6 of the handler. When there is a material mixing, that is, the physical positions of the chips at the handler and the logical positions of the chips at the tester cannot be one-to-one corresponding, for example, Figure 3 As shown by the middle dashed line, the Site1 of the tester is connected to the Site2 of the handler, and the Site2 of the tester is connected to the Site1 of the handler. Therefore, when there is a specified association relationship between the test station and the test site to which the cable is currently connected, it is considered that the cable is connected normally, otherwise the cable is inserted incorrectly.

[0035] In this embodiment, the cable detection result corresponding to each communication loop can be generated by processing the lamp parameters of each communication loop, and the specific parameter processing means is not limited. For example, the cable detection result corresponding to each communication loop can be directly generated by means of a neural network model, or the cable detection result corresponding to each communication loop can be obtained by numerical judgment of the lamp parameters of each communication loop.

[0036] As a feasible implementation manner, the cable detection result corresponding to each communication loop is generated based on the lamp parameters of each communication loop, and includes: For each communication loop, it is judged whether the lamp parameters corresponding to each communication loop are within the respective preset parameter range; If the lamp parameters corresponding to at least one communication loop are not within the preset parameter range, it is determined that the cable detection result corresponding to at least one communication loop is used to represent that the test station and the test site to which the cable is currently connected do not have a specified association relationship; If the lamp parameters corresponding to at least one communication loop are within the preset parameter range, it is determined that the cable detection result corresponding to at least one communication loop is used to represent that the test station and the test site to which the cable is currently connected have a specified association relationship.

[0037] The lamp parameters are the actual parameters of the indicator light under the condition that the test station and the test site to which the cable is currently connected, and the preset parameter range includes the theoretical parameters of the indicator light under the condition that the test station and the test site to which the cable is connected have a specified association relationship. For example, the theoretical parameters can be understood as the lamp parameters of the indicator light when the cable is normally connected. Due to various factors of the circuit, the theoretical parameters can be multiple, and multiple theoretical parameters can form a preset parameter range.

[0038] In the specific embodiment, the lamp parameter of the indicator light can be acquired by a hardware circuit, and whether the lamp parameter is within a program requirement range (i.e., a preset parameter range) can be determined by program software, so as to obtain the wire detection result corresponding to each communication loop.

[0039] In S103, the display device displays the wire detection result corresponding to each communication loop.

[0040] In some embodiments, after the wire detection result corresponding to each communication loop is generated based on the lamp parameter of each communication loop, the first processor further performs: According to the wire detection result corresponding to each communication loop, a color control instruction corresponding to each communication loop is generated, and the color control instruction is used to adjust the RGB parameter of the indicator light in each communication loop. The color control instruction corresponding to each communication loop is sent to the load board.

[0041] In actual application, the tester can also determine whether to power on each indicator light or adjust the RGB parameter of each indicator light according to the wire detection result corresponding to each communication loop. For example, the indicator light in each communication loop can be controlled by generating the color control instruction corresponding to each communication loop and sending the color control instruction to the load board. The specific adjustment of the RGB parameter can be configured according to actual needs, for example, different color control instructions can be generated according to different wire detection results, so that the indicator light displays different colors, which facilitates the user to distinguish different states of the sorting through the indicator light. On this basis, the function of preventing mistakes can be achieved in the case where the test program cannot be downloaded, and the reliability of the wire connection relationship detection can be improved. As a feasible implementation, according to the wire detection result corresponding to each communication loop, the color control instruction corresponding to each communication loop is generated, including: If the wire detection result corresponding to at least one communication loop is used to represent that the test station and the test station connected by the wire have a specified association relationship, a first control instruction corresponding to the at least one communication loop is generated, and the first control instruction is used to adjust the red and blue channels of the RGB parameter of the indicator light in the at least one communication loop to be closed and the green channel to be completely opened.

[0042] As a feasible implementation, according to the wire detection result corresponding to each communication loop, the color control instruction corresponding to each communication loop is generated, including: If the detection result of the flat cable corresponding to the at least one communication loop indicates that the test station and the test site connected by the flat cable do not have the specified association relationship, a second control instruction corresponding to the at least one communication loop is generated, and the second control instruction is used to adjust the RGB parameters of the indicator light in the at least one communication loop, that is, to close the green and blue channels and fully open the red channel.

[0043] The test instrument provided by the embodiment of the application is configured with a first processor, a display device, a plurality of test stations, and a driving power source connected to each test station, wherein each test station is connected to one of the test sites of a load board through a flat cable, the load board is configured with a plurality of test sites, each test site is connected with a protection resistor and an indicator light, each test station, the driving power source connected to each test station, the flat cable, one of the test sites, and the protection resistor and the indicator light connected to the test site form a respective communication loop, and the first processor and the display device are respectively communicatively connected to each test station; the first processor is configured to: acquire the lamp parameter of the indicator light in each communication loop; generate a flat cable detection result corresponding to each communication loop based on the lamp parameter of each communication loop, and the flat cable detection result is used to indicate whether the test station and the test site currently connected by the flat cable in each communication loop have the specified association relationship; and control the display device to display the flat cable detection result corresponding to each communication loop. With the test instrument, each test station is connected with a driving power source, each test site of the load board is connected with a protection resistor and an indicator light, each test station, the driving power source connected to each test station, the flat cable, one of the test sites, and the protection resistor and the indicator light connected to the test site form a respective communication loop, the first processor of the test instrument can quickly and accurately detect whether the test station and the test site currently connected by the flat cable in each communication loop have the specified association relationship based on the lamp parameter of each communication loop, and the mixing accident of the product during the test is avoided, thereby improving the product quality.

[0044] Figure 4 is a structural block diagram of a load board provided by an embodiment of the application, as shown in the figure, the load board is configured with a plurality of test sites, for example, can include test site 1, test site 2, and test site 3, and each test site is connected with a protection resistor and an indicator light. Figure 4

[0045] Each test site is connected to one of the test stations of the test instrument through a flat cable, the test instrument is configured with a first processor, a display device, a plurality of test stations, and a driving power source connected to each test station, each test site, the protection resistor and the indicator light connected to each test site, the flat cable, one of the test stations, and the driving power source connected to the test station form a respective communication loop.​

[0046] The first processor is configured to: acquire a lamp parameter of the indicator lamp in each communication loop; generate a wire detection result corresponding to each communication loop based on the lamp parameter of each communication loop, the wire detection result being used to represent whether a specified association relationship exists between a test station currently connected by the wire and the test station in each communication loop; and control the display device to display the wire detection result corresponding to each communication loop.

[0047] It should be noted that each test station of the load board can be integrated with a protection resistor and an indicator lamp as a new part of the load board, and a driving power source corresponding to the protection resistor is integrated in the tester. All driving power sources, protection resistors, and indicator lamps are one-to-one corresponding. Only when the corresponding power source is used to drive the corresponding indicator lamp accurately, the indicator lamp can display the set color, such as a green light, otherwise a red light.

[0048] Further, different Sites correspond to different indicator lamp specifications, and different driving power source specifications. For example, a driving voltage U1 of Site1 is used to drive the indicator lamp 1, a driving voltage U2 of Site2 is used to drive the indicator lamp 2, and a driving voltage U3 of Site3 is used to drive the indicator lamp 3. Therefore, when a certain driving power source drives other indicator lamps, such as when the driving voltage U1 of Site1 is used to drive the indicator lamp 2 and the driving voltage U2 of Site2 is used to drive the indicator lamp 1, the indicator lamps 1 and 2 cannot be correctly displayed. That is, when the wire is inserted incorrectly, the chips of Site1 and Site2 will be mixed, the indicator lamp state is incorrect, and subsequent mass production cannot be performed.

[0049] In some embodiments, the load board is further configured with a second processor, which is in communication connection with the first processor; the second processor is configured to adjust the RGB parameter of the indicator lamp in each communication loop in response to the color control instruction corresponding to each communication loop sent by the first processor.

[0050] In actual application, the load board adjusts the RGB parameter of the indicator lamp in each communication loop according to the color control instruction sent by the tester to realize display control of each indicator lamp.

[0051] The load board provided by the embodiments of the present application is configured with a plurality of test stations, each test station is connected with a protection resistor and an indicator lamp, so that each test station in the tester, the driving power source connected with each test station, the wire, one of the test stations, and the protection resistor and the indicator lamp connected with the one of the test stations form a respective communication loop, which provides a circuit basis for the first processor in the tester to quickly and accurately detect whether a specified association relationship exists between the test station currently connected by the wire and the test station in each communication loop, and further avoids product mixing accidents in the test process.

[0052] Figure 6 is a structural block diagram of a flat cable detection system provided by an embodiment of the present application, as shown in the figure, the flat cable detection system comprises: a tester configured with a first processor, a display device, a plurality of test stations (such as test station 1 and test station 2), and a driving power supply (such as driving power supply 1 and driving power supply 2) connected with each test station respectively; a load board configured with a plurality of test stations (such as test station 1 and test station 2), and a protection resistor and an indicator light connected with each test station respectively, such as test station 1 connected with protection resistor 1 and indicator light 1, and test station 2 connected with protection resistor 2 and indicator light 2. Figure 6

[0053] Among them, each test station is connected with one of the test stations through a flat cable, so that each test station, the driving power supply connected with each test station, the flat cable, one of the test stations, and the protection resistor and the indicator light connected with one of the test stations form a respective communication loop. For example, two communication loops can be formed. At the same time, the first processor and the display device are respectively connected with each test station in communication.

[0054] The first processor is configured to obtain the lamp parameters of the indicator light in each communication loop; generate the flat cable detection result corresponding to each communication loop based on the lamp parameters of each communication loop, the flat cable detection result being used to represent whether the current test station and the current test station connected by the flat cable in each communication loop exist a specified association relationship; and the display device is configured to display the flat cable detection result corresponding to each communication loop.

[0055] In some embodiments, the load board is further configured with a second processor, and the second processor is connected with the first processor in communication; The first processor is further configured to generate the color control instruction corresponding to each communication loop according to the flat cable detection result corresponding to each communication loop; and send the color control instruction corresponding to each communication loop to the second processor of the load board; The second processor is configured to adjust the RGB parameters of the indicator light in each communication loop in response to the color control instruction corresponding to each communication loop sent by the first processor.

[0056] The flat cable detection system provided by the embodiment of the present application can form a respective communication loop through each test station in the tester, the driving power supply connected with each test station, the flat cable, one of the test stations, and the protection resistor and the indicator light connected with one of the test stations, so that the first processor in the tester can quickly and accurately detect the connection relationship of the flat cable in each communication loop based on the lamp parameters of each communication loop, thereby avoiding the mixing accident of the product in the test process.

[0057] ​Figure 7 is a schematic diagram of a flat cable connection relationship detection architecture provided by an embodiment of the present application, as shown Figure 7 The implementation process of the entire detection is mainly through the processes of test instrument end flat cable insertion, LB board end flat cable insertion, flat cable state detection, and mass production / maintenance, in which the most important part is the flat cable state detection part, which can quickly and accurately detect the use state of the flat cable and clearly display whether the flat cable is inserted incorrectly through the indicator light. For example, the flat cables at the test instrument end and the LB board end mainly function to connect the test machine and the LB board as the main part of the test system. When the flat cable detection is normal, the indicator light normally displays green, and the subsequent mass production can be performed. When the flat cable detection is inserted incorrectly, the indicator light abnormally displays red, and abnormal processing needs to be performed, such as confirming the state of the flat cable. The various links and systems cooperate with each other, sequentially respond, and jointly operate, so that the use state of the flat cable in the test system can be quickly and accurately detected and displayed, effectively intercepting the problem of mixed material accidents caused by the reverse insertion and incorrect insertion of different flat cables in the test system, and greatly improving the product production efficiency and quality.

[0058] It can be found from the above description that the flat cable detection system provided by the embodiment does not have other additional costs except that the hardware system needs to spend corresponding funds and human resources in the development stage, and only needs to replace the corresponding hardware accessories regularly for later maintenance, which is particularly low in cost. Meanwhile, after the system hardware environment is developed by the development technical personnel, the subsequent flat cable abnormalities can be quickly identified without the need for complex measurement for detection through the electronic instrument.

[0059] In addition, the flat cable detection system of the embodiment has simple structure, stable and reliable performance, high work efficiency, and high commercial value, and can be used in many products and systems, and has a wide application range.

[0060] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or software. In addition, the specific names of the functional units and modules are only for the convenience of mutual distinction, and do not limit the protection scope of the present application. The specific working process of the units and modules in the system can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0061] In the above embodiments, the description of each embodiment is focused on, and the part not described or recorded in a certain embodiment can be referred to the relevant description of other embodiments.

[0062] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0063] In the embodiments provided in the present application, it should be understood that the disclosed method and system can be implemented in other ways. For example, the above-described method and system embodiments are only illustrative, for example, the division of modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0064] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiments according to actual needs.

[0065] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A tester, characterized in that: The tester is equipped with a first processor, a display device, a plurality of test stations, and a driving power supply connected to each of the test stations, wherein: Each of the test stations is connected to one of the test stations on the load board via a flat cable. The load board is configured with a plurality of the test stations, each of which is connected to a protective resistor and an indicator light. Each of the test stations, a driving power supply connected to each of the test stations, the flat cable, one of the test stations, and the protective resistor and indicator light connected to one of the test stations form a respective communication circuit. The first processor and the display device respectively establish a communication connection with each of the test stations. The first processor is configured to execute: Obtaining the lighting parameters of the indicator lights in each of the communication loops; Generate a cable detection result corresponding to each communication circuit based on the lamp parameters of each communication circuit, wherein the cable detection result is used to indicate whether a specified association relationship exists between the test station and the test station currently connected to the cable in each communication circuit; The display device is controlled to display the wiring detection result corresponding to each communication loop.

2. The tester according to claim 1, wherein: The generating of the wiring detection result corresponding to each communication circuit based on the lamp parameters of each communication circuit includes: For each of the communication loops, determining whether the lamp parameters corresponding to each of the communication loops are within respective preset parameter ranges; If the lamp parameter corresponding to at least one of the communication circuits is not within the preset parameter range, determining that the cable detection result corresponding to at least one of the communication circuits is used to indicate that the test station currently connected to the cable does not have a specified association relationship with the test station; If there is at least one lamp parameter corresponding to the communication circuit that is within the preset parameter range, then determining the cable detection result corresponding to the communication circuit is used to indicate that the test station currently connected to the cable has a specified association relationship with the test station.

3. The tester according to claim 2, wherein: The lamp parameters are actual parameters of the indicator light when the cable is currently connected to the test station and the test station, and the preset parameter range includes theoretical parameters of the indicator light when a specified association exists between the test station and the test station connected to the cable.

4. The tester according to any one of claims 1 to 3, wherein: After generating a wiring detection result corresponding to each communication circuit based on the lamp parameters of each communication circuit, the first processor further executes: generating a color control instruction corresponding to each communication circuit according to a wiring detection result corresponding to each communication circuit, wherein the color control instruction is used to adjust the RGB parameters of the indicator light in each communication circuit; The color control instruction corresponding to each communication loop is sent to the load board.

5. The tester according to claim 4, wherein: Generating a color control instruction corresponding to each communication circuit according to the wiring detection result corresponding to each communication circuit includes: If there is a cable detection result corresponding to at least one of the communication circuits that is used to indicate that the test station connected to the cable has a specified association relationship with the test station, then a first control instruction corresponding to at least one of the communication circuits is generated, and the first control instruction is used to adjust the RGB parameters of the indicator light in at least one of the communication circuits to turn off the red and blue channels and fully turn on the green channel.

6. The tester according to claim 4, wherein: Generating a color control instruction corresponding to each communication circuit according to the wiring detection result corresponding to each communication circuit includes: If there is a cable detection result corresponding to at least one of the communication loops that is used to indicate that there is no specified association relationship between the test station connected to the cable and the test station, then a second control instruction corresponding to at least one of the communication loops is generated, and the second control instruction is used to adjust the RGB parameters of the indicator light in at least one of the communication loops to turn off the green and blue channels and fully turn on the red channel.

7. A load plate, characterized in that: The load board is equipped with a plurality of test stations, and a protection resistor and an indicator light respectively connected to each of the test stations; Each of the test stations is connected to one of the test stations of the tester via a flat cable. The tester is equipped with a first processor, a display device, a plurality of test stations, and a driving power supply connected to each of the test stations. Each of the test stations, the protective resistor and indicator light connected to each of the test stations, the flat cable, one of the test stations, and the driving power supply connected to one of the test stations form a respective communication circuit. The first processor is used to execute the following: obtaining the lamp parameters of the indicator light in each of the communication loops; generating a wiring detection result corresponding to each of the communication loops based on the lamp parameters of each of the communication loops, wherein the wiring detection result is used to characterize whether a specified association relationship exists between the test station and the test station to which the wiring in each of the communication loops is currently connected; and controlling the display device to display the wiring detection result corresponding to each of the communication loops.

8. The load plate according to claim 7, wherein The load board is further configured with a second processor, the second processor establishing a communication connection with the first processor; The second processor is configured to adjust the RGB parameters of the indicator light in each of the communication loops in response to a color control instruction corresponding to each of the communication loops sent by the first processor.

9. A cable detection system, characterized in that: include: A tester, comprising a first processor, a display device, a plurality of test stations, and a driving power supply connected to each of the test stations; A load board is configured with a plurality of test stations, and a protection resistor and an indicator light respectively connected to each of the test stations; Each of the test stations is connected to one of the test stations via a flat cable, so that each of the test stations, the driving power supply connected to each of the test stations, the flat cable, one of the test stations, and the protective resistor and indicator light connected to one of the test stations form a respective communication circuit, and the first processor and the display device respectively establish a communication connection with each of the test stations; The first processor is configured to obtain lamp parameters of the indicator light in each of the communication loops; Generate a cable detection result corresponding to each communication circuit based on the lamp parameters of each communication circuit, wherein the cable detection result is used to indicate whether a specified association relationship exists between the current test station connected to the cable in each communication circuit and the current test station; The display device is used to display the wiring detection result corresponding to each communication loop.

10. The cable detection system according to claim 9, wherein: The load board is further configured with a second processor, the second processor establishing a communication connection with the first processor; The first processor is further configured to generate a color control instruction corresponding to each communication circuit according to a wiring detection result corresponding to each communication circuit; and send the color control instruction corresponding to each communication circuit to the second processor of the load board; The second processor is configured to adjust the RGB parameters of the indicator light in each of the communication loops in response to a color control instruction corresponding to each of the communication loops sent by the first processor.

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