Intelligent flat cable detection device capable of judging fault type and position

Abstract

The embodiment of the utility model specifically discloses an intelligent flat cable detection device capable of judging the fault type and position, and the device comprises a power module, a flat cable detection sensor, an LED display circuit module, an AD conversion circuit module, and a single-chip microcomputer circuit module. The output end of the power supply module is connected with the flat cable detection sensor, the AD conversion circuit module and the single-chip microcomputer circuit module. The flat cable detection sensor comprises a connector P1 and a connector P2, a first terminal of the connector P1 is connected with the output end of the power supply module, other terminals of the connector P1 are sequentially connected with a resistor in series, a last terminal of the connector P2 is grounded, and other terminals of the connector P2 are sequentially connected with the resistor in series; the LED display circuit module comprises a plurality of LED indicating lamps connected in series with the resistor, and the LED indicating lamps are respectively connected with the single-chip microcomputer circuit module; the AD conversion circuit module comprises an ADC0809 converter, and the ADC0809 converter is connected with the flat cable detection sensor and the single-chip microcomputer circuit module. The single-chip microcomputer circuit module comprises an 89C51 single-chip microcomputer.

Description

Technical Field

[0001] This application relates to the technical field of flexible cable detection, and particularly relates to an intelligent flexible cable detection device capable of discriminating the types and positions of faults. Background Art

[0002] A flexible cable or wiring harness is a common connecting wire with a very wide range of applications. There are many types, such as: FFC flexible cable, FPC flexible cable, flat flexible cable, coaxial flexible cable, shielded flexible cable, twisted pair flexible cable, etc. In various electrical devices, flexible cables are widely used, such as: HDMI interface flexible cable, VG interface flexible cable, display screen flexible cable, etc. When a flexible cable fails, it is usually necessary to manually check each cable one by one, and it is difficult to quickly find the fault. Especially when the number of flexible cables is large and the arrangement of the flexible cables is complex, it is even more difficult to find the type and position of the flexible cable fault (that is, which specific flexible cables are problematic) in a short time. Summary of the Invention

[0003] The purpose of this application is to provide an intelligent flexible cable detection device capable of discriminating the types and positions of faults, so as to solve the problem that in the prior art, when a flexible cable fails, it is usually necessary to manually check each cable one by one, and it is difficult to quickly find the fault. Especially when the number of flexible cables is large and the arrangement of the flexible cables is complex, it is even more difficult to find the type and position of the flexible cable fault in a short time.

[0004] To achieve the above purpose, an embodiment of this application provides an intelligent flexible cable detection device capable of discriminating the types and positions of faults, including: a power supply module, a flexible cable detection sensor, an LED display circuit module, an AD conversion circuit module, and a single-chip microcomputer circuit module. Among them,

[0005] The output end of the power supply module is respectively connected to the flexible cable detection sensor, the AD conversion circuit module, and the single-chip microcomputer circuit module;

[0006] The flexible cable detection sensor includes connector P1 and connector P2. The first terminal of connector P1 is connected to the output end of the power supply module, and the other terminals are sequentially connected in series with resistors. The last terminal of connector P2 is used for grounding, and the other terminals are sequentially connected in series with resistors;

[0007] The LED display circuit module includes multiple LED indicators connected in series with resistors and is respectively connected to the single-chip microcomputer circuit module;

[0008] The AD conversion circuit module includes an ADC0809 converter, and the ADC0809 converter is respectively connected to the flexible cable detection sensor and the single-chip microcomputer circuit module;

[0009] The single-chip microcomputer circuit module includes an 89C51 single-chip microcomputer.

[0010] Optionally, the power supply module includes a power adapter and an L7805 chip. The input end of the L7805 chip is connected to the power adapter, and the output end is respectively connected to the cable detection sensor, the AD conversion circuit module, and the single-chip microcomputer circuit module.

[0011] Optionally, the IN0 to IN7 pins of the ADC0809 converter are respectively connected to the other terminals of the cable detection sensor except for the first terminal of the connector P1 and the last terminal of the connector P2.

[0012] Optionally, it further includes:

[0013] A sound prompt circuit module, which includes a buzzer LS1 and a triode. The collector of the triode is connected to one end of the buzzer LS1, the emitter of the triode is grounded, and the base of the triode is respectively connected to one end of two resistors. The other end of one resistor is grounded, and the other end of the other resistor, the V0 terminal, is connected to the single-chip microcomputer circuit module.

[0014] Optionally, the P0.0 to P0.7 pins of the 89C51 single-chip microcomputer are respectively connected to the D0 to D7 pins of the ADC0809 converter of the AD conversion circuit module, and the P2.0 to P2.7 pins and P3.7 to P3.5 pins of the 89C51 single-chip microcomputer are respectively connected to the cathodes of the corresponding LED indicators of the LED display circuit module.

[0015] Optionally, the P3.2 pin of the 89C51 single-chip microcomputer is connected to the V0 terminal of the sound prompt circuit module.

[0016] Optionally, it further includes:

[0017] A program download circuit module, which is connected to the P3.0 and P3.1 pins of the 89C51 single-chip microcomputer.

[0018] The embodiments of the present application have the following advantages:

[0019] An intelligent cable detection device capable of discriminating the types and positions of faults provided by an embodiment of the present application includes: a power supply module, a cable detection sensor, an LED display circuit module, an AD conversion circuit module, and a single-chip microcomputer circuit module. Among them, the output terminals of the power supply module are respectively connected to the cable detection sensor, the AD conversion circuit module, and the single-chip microcomputer circuit module; the cable detection sensor includes connectors P1 and P2. The first terminal of connector P1 is connected to the output terminal of the power supply module, and the other terminals are sequentially connected in series with resistors. The last terminal of connector P2 is used for grounding, and the other terminals are sequentially connected in series with resistors; the LED display circuit module includes multiple LED indicators connected in series with resistors and is respectively connected to the single-chip microcomputer circuit module; the AD conversion circuit module includes an ADC0809 converter, and the ADC0809 converter is respectively connected to the cable detection sensor and the single-chip microcomputer circuit module; the single-chip microcomputer circuit module includes an 89C51 single-chip microcomputer.

[0020] Compared with the prior art, the intelligent cable detection device provided by the above technical solution can conveniently and quickly detect whether the cable is normal. If there is a cable fault, the type of the cable fault can be displayed by the LED lights, and the position of the cable can be determined, that is, which cable has which kind of fault. Through this device, cable problems can be easily found, which is beneficial to quickly eliminate cable faults. This device is easy to use, measures quickly and accurately, and has great practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0022] Figure 1 It is a principle block diagram of an intelligent cable detection device capable of discriminating the types and positions of faults provided by at least one embodiment of the present application;

[0023] Figure 2 It is a schematic diagram of 5 cables provided by at least one embodiment of the present application;

[0024] Figure 3 It is a schematic diagram of a three-color indicator light for cable faults of an intelligent cable detection device capable of discriminating the types and positions of faults provided by at least one embodiment of the present application;

[0025] Figure 4 It is a schematic diagram of a power supply module of an intelligent cable detection device capable of discriminating the types and positions of faults provided by at least one embodiment of the present application;

[0026] Figure 5 Schematic diagram of the cable detection sensor of an intelligent cable detection device capable of discriminating the type and location of faults provided by at least one embodiment of the present application;

[0027] Figure 6 Schematic diagram of the LED display circuit module of an intelligent cable detection device capable of discriminating the type and location of faults provided by at least one embodiment of the present application;

[0028] Figure 7 Schematic diagram of the AD conversion circuit module of an intelligent cable detection device capable of discriminating the type and location of faults provided by at least one embodiment of the present application;

[0029] Figure 8 Schematic diagram of the sound prompt circuit module of an intelligent cable detection device capable of discriminating the type and location of faults provided by at least one embodiment of the present application;

[0030] Figure 9 Schematic diagram of the single-chip microcomputer circuit module of an intelligent cable detection device capable of discriminating the type and location of faults provided by at least one embodiment of the present application;

[0031] Figure 10 Schematic diagram of the program download circuit module of an intelligent cable detection device capable of discriminating the type and location of faults provided by at least one embodiment of the present application. Detailed implementation manners

[0032] The following specific embodiments illustrate the implementation manners of the present application. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0033] In the description of the present application, unless otherwise clearly defined and limited, the terms "set", "install", "connect", and "couple" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] In addition, the technical features involved in different implementation manners of the present application described below can be combined with each other as long as they do not conflict with each other.

[0035] Existing flexible cable detection devices are either too complex and costly, or can only perform short - circuit detection, or can only perform open - circuit detection, or can only detect flexible cable faults without indicating the specific location of the faults.

[0036] The device provided by this application can not only accurately detect open - circuit, short - circuit, and misconnection faults of the flexible cable, but also accurately detect the specific location of the flexible cable faults, with low cost and convenient use.

[0037] The following embodiments refer to Figure 1 the principle block diagram of the intelligent flexible cable detection device to illustrate the principle of the intelligent flexible cable detection device provided by this application that can distinguish the types and locations of faults.

[0038] 1) Flexible cable detection sensor

[0039] The following embodiments take Figure 2 a 5 - flexible - cable case as an example to illustrate the principle of the flexible cable detection sensor. The principle of the flexible cable detection sensor with other numbers of flexible cables is the same.

[0040] As Figure 2 shown, inside the frame is the flexible cable. One end of the first flexible cable is connected to Vcc (such as 5V), one end of the last flexible cable is connected to GND, and the middle flexible cables are connected in series with resistors in turn.

[0041] Through AD conversion, the voltages U1…U8 at both ends of the flexible cable are detected, and then the type and location of the flexible cable fault are judged according to the voltages.

[0042] Flexible cable faults can be divided into:

[0043] Open - circuit: that is, the connection of the flexible cable is disconnected;

[0044] Short - circuit: that is, there is a short - circuit between the flexible cables;

[0045] Misconnection: that is, the connection of the flexible cable is incorrect.

[0046] If there is no problem with the flexible cable, the voltages at all points of the flexible cable detection sensor are normal values. Otherwise, there must be a fault with the flexible cable. If the voltages at both ends of a flexible cable are not equal, then this flexible cable must be open - circuited; if the voltages of any two flexible cables are equal, then these two flexible cables must be short - circuited; if the voltages at both ends of different flexible cables are equal, then the flexible cable between these two ends must be misconnected.

[0047] 2) AD conversion circuit module

[0048] Perform AD conversion on the voltage output by the flexible cable sensor.

[0049] 3) Flexible cable fault indicator circuit module (LED display circuit module)

[0050] Place three - color flexible cable fault indicator lights at both ends of the flexible cable to indicate the type and location of the flexible cable fault; as Figure 3As shown in the figure, if a certain cable is open-circuited, the indicator lights at both ends of the cable will light up yellow; if two cables are short-circuited, the indicator lights at both ends of the two cables will light up red; if a cable is wrongly connected, the indicator lights at both ends of the cable will light up green. When the cable is normal, the cable fault indicator light goes out; the cable normal indicator light lights up.

[0051] In this way, through the lighting and color of the indicator lights, it is convenient to know the quality of the cable, as well as the location and type of cable faults.

[0052] 4) Sound prompt circuit module

[0053] When the cable is normal, a long sound is emitted; when the cable has a fault, an intermittent alarm sound is emitted.

[0054] 5) Power supply module

[0055] A 5V DC voltage is provided through a power adapter and an L7805 chip.

[0056] The following embodiments will describe in detail the circuit structures of the various modules of the intelligent cable detection device provided by the present application that can distinguish the types and locations of faults.

[0057] An embodiment of the present application provides an intelligent cable detection device that can distinguish the types and locations of faults. Refer to Figures 4 to 10 , including:

[0058] 1) Power supply module

[0059] In some embodiments, it includes a power adapter and an L7805 chip. The input end of the L7805 chip is connected to the power adapter, and the output end is respectively connected to the cable detection sensor, the AD conversion circuit module, and the single-chip microcomputer circuit module.

[0060] Specifically, refer to Figure 4 , the power supply module inputs 10V DC through the power adapter and outputs 5V DC through the L7805 chip.

[0061] 2) Cable detection sensor

[0062] Specifically, it includes connector P1 and connector P2. The first terminal of connector P1 is connected to the output end of the power supply module, and the other terminals are sequentially connected in series with resistors. The last terminal of connector P2 is used for grounding, and the other terminals are sequentially connected in series with resistors.

[0063] Specifically, refer to Figure 5 , when the cable is normal, the resistors of the cable detection sensor are connected in series, U1…U8 are resistor voltage dividers, and the voltage division value is a fixed value. If the voltage division value is abnormal, the cable has a fault, and the type and location of the cable fault can be determined according to each voltage division value.

[0064] 3) LED display circuit module

[0065] It includes multiple LED indicators connected in series with resistors and are respectively connected to the single-chip microcomputer circuit module.

[0066] Specifically, referring to Figure 6 , if the cable is normal, the cable normal indicator D1 is lit; D2…D11 are the three-color indicator circuit modules for cable faults, which are respectively placed at both ends of the cable to indicate cable faults and positions.

[0067] If a certain cable is open-circuited, the indicators at both ends of this cable are lit yellow; if two certain cables are short-circuited, the indicators at both ends of these two cables are lit red; if a certain cable is wrongly connected, the indicators at both ends of this cable are lit green. When the cable is normal, the cable fault indicator is extinguished; the cable normal indicator D1 is lit.

[0068] 4) AD conversion circuit module

[0069] Specifically, it includes an ADC0809 converter, which is respectively connected to the cable detection sensor and the single-chip microcomputer circuit module. Referring to Figure 7 , AD conversion is achieved through the ADC0809 converter.

[0070] In some embodiments, the IN0 to IN7 pins of the ADC0809 converter are respectively connected to the other terminals of the cable detection sensor except for the first terminal of the connector P1 and the last terminal of the connector P2.

[0071] 5) Sound prompt circuit module

[0072] In some embodiments, it includes a buzzer LS1 and a triode. The collector of the triode is connected to one end of the buzzer LS1, the emitter of the triode is grounded, the base of the triode is respectively connected to one end of two resistors, the other end of one resistor is grounded, and the other end of the other resistor is connected to the single-chip microcomputer circuit module. Referring to Figure 8 .

[0073] When the cable is normal, a long sound is emitted; when there is a cable fault, an intermittent alarm sound is emitted.

[0074] 6) Single-chip microcomputer circuit module

[0075] It includes an 89C51 single-chip microcomputer.

[0076] In some embodiments, referring to Figure 9, the P0.0 to P0.7 pins of the 89C51 single-chip microcomputer are respectively connected to the D0 to D7 pins of the ADC0809 converter of the AD conversion circuit module. The P3.2 pin of the 89C51 single-chip microcomputer is connected to the V0 terminal of the sound prompt circuit module. The P2.0 to P2.7 pins and the P3.7 to P3.5 pins of the 89C51 single-chip microcomputer are respectively connected to the cathodes of the corresponding LED indicators of the LED display circuit module.

[0077] 7) Program download circuit module

[0078] Reference Figure 10 , in some embodiments, the two pins of the program download circuit module are respectively connected to the P3.0 and P3.1 pins of the 89C51 single-chip microcomputer.

[0079] In summary, compared with the prior art, the intelligent cable detection device provided by the above technical solution can conveniently and quickly detect whether the cable is normal. If there is a cable fault, the type of cable fault can be displayed by the LED lights, and the position of the cable can be determined, that is, which cable has which kind of fault. Through this device, cable problems can be easily found, which is beneficial to quickly eliminate cable faults. This device is easy to use, measures quickly and accurately, and has great practical value.

[0080] Note that unless otherwise directly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) can be replaced by alternative features for achieving the same, equivalent, or similar purposes. Therefore, unless otherwise clearly stated, each feature disclosed is only an example of a group of equivalent or similar features. In the case of use, further, preferably, furthermore, and more preferably are simply the starting points for elaborating another embodiment based on the foregoing embodiment. The content following the further, preferably, furthermore, or more preferably in combination with the foregoing embodiment constitutes the complete composition of another embodiment. The further, preferably, furthermore, or more preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.

[0081] In the implementation of functions and steps, the corresponding functions and steps in each embodiment can also occur in an order different from that shown. For example, two consecutive functions and steps can actually be executed or implemented substantially in parallel, and sometimes they can also be executed or implemented in the reverse order, depending on the functions involved.

[0082] Although the present application has been described in detail with general descriptions and specific embodiments above, on the basis of the present application, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present application fall within the scope of protection required by the present application.

Claims

1. An intelligent cable detection device capable of identifying the type and location of a fault, characterized in that: include: Power module, cable detection sensor, LED display circuit module, AD conversion circuit module, single chip circuit module, among which, The output end of the power module is respectively connected to the wiring detection sensor, the AD conversion circuit module, and the single-chip circuit module; The cable detection sensor includes a connector P1 and a connector P2, wherein the first terminal of the connector P1 is connected to the output end of the power module, and the other terminals are connected in series with resistors in sequence, and the last terminal of the connector P2 is used for grounding, and the other terminals are connected in series with resistors in sequence; The LED display circuit module includes a plurality of LED indicator lights connected in series with resistors, which are respectively connected to the single-chip circuit module; The AD conversion circuit module includes an ADC0809 converter, and the ADC0809 converter is connected to the wiring detection sensor and the single-chip circuit module respectively; The single-chip circuit module includes a 89C51 single-chip microcomputer.

2. The intelligent cable detection device capable of identifying the type and location of a fault according to claim 1, characterized in that: The power module includes a power adapter and an L7805 chip. The input end of the L7805 chip is connected to the power adapter, and the output end is respectively connected to the wiring detection sensor, the AD conversion circuit module, and the single-chip circuit module.

3. The intelligent cable detection device capable of identifying the type and location of a fault according to claim 1, characterized in that: The IN0 to IN7 pins of the ADC0809 converter are respectively connected to the other terminals of the cable detection sensor except the first terminal of the connector P1 and the last terminal of the connector P2.

4. The intelligent cable detection device capable of identifying the type and location of a fault according to claim 1, characterized in that: Also includes: The sound prompt circuit module includes a buzzer LS1 and a transistor, the collector of the transistor is connected to one end of the buzzer LS1, the emitter of the transistor is grounded, the base of the transistor is respectively connected to one end of two resistors, the other end of one resistor is grounded, and the other end V0 of the other resistor is connected to the single-chip circuit module.

5. The intelligent cable detection device capable of identifying the type and location of a fault according to claim 1, characterized in that: The P0.0 to P0.7 pins of the 89C51 single-chip microcomputer are respectively connected to the D0 to D7 pins of the ADC0809 converter of the AD conversion circuit module, and the P2.0 to P2.7 pins and P3.7 to P3.5 pins of the 89C51 single-chip microcomputer are respectively connected to the negative poles of the corresponding LED indicator lights of the LED display circuit module.

6. The intelligent cable detection device capable of identifying the type and location of a fault according to claim 4, characterized in that: The P3.2 pin of the 89C51 single chip microcomputer is connected to the V0 end of the sound prompt circuit module.

7. The intelligent cable detection device capable of identifying the type and location of a fault according to claim 1, characterized in that: Also includes: A program download circuit module is connected to the P3.0 and P3.1 pins of the 89C51 single chip microcomputer.

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