TW202318011A - Cable detection method and detection device - Google Patents

Abstract

Disclosed is a cable detection method, which is applied to the detection of a cable including a plurality of wires, and includes: outputting a signal to one end of a wire to perform a straight-through test, an overvoltage and overcurrent protection test, and a short-circuit test in sequence; outputting a signal to the other end of the wire to perform another straight-through test, another overvoltage and overcurrent protection test, and another short-circuit test in sequence if the straight-through test is abnormal; inputting a signal to a second semi-conduction detection circuit connected to the other end of the wire to perform a semi-conductive self-test if the another straight-through test is abnormal; inputting a signal to a first semi-conductive detection circuit connected to one end of the wire to perform another semi-conductive self-test if the semi-conductive self-test is abnormal; performing a detection on the next wire until the detection of each wire of the cable is completed if the straight-through test, the overvoltage and overcurrent protection test and the short-circuit test are passed sequentially, or the semi-conductive self-test is passed.

Description

Cable detection method and detection device

The present application relates to the technical field of cable detection, in particular to a cable detection method and detection device.

Mobile phones, cameras, tablet computers, earphones and other electronic products often use cables (such as charging data cables, data cables, high-frequency signal cables and power strip cables) and external devices to transmit power or data. The current cables can have functions such as anti-counterfeiting, authentication, communication, and high voltage and current modulation, so that if a short circuit or an open circuit occurs instantaneously when transmitting power or data, its work can be stopped in time.

As the cable has more and more functions, the number of wires included in the cable is also increasing. Once any wire fails, it may cause abnormal work. Therefore, the detection of its own performance is inseparable from the development and maintenance of cable products.

However, for a cable including a plurality of wires, it is necessary to perform various inspections on each wire, and the workload is very large. If the performance inspection is performed manually, the efficiency is low, and it is easy to make false or missed inspections. Therefore, how to provide a cable detection method and detection device to solve the above problems is a problem that those skilled in the art need to solve.

The embodiments of the present application provide a cable detection method and a detection device, which can solve the problems of low efficiency and easy false detection or missing detection in the existing manual detection of cable performance.

In order to solve the above-mentioned technical problems, the application is implemented as follows:

The application provides a cable detection method, which is applied to a cable detection device for detecting cables. The cable includes a first connector plug, a second connector plug, and a plurality of connectors connecting the first connector plug and the second connector plug. wire, the first connector plug of the cable is connected to the first transfer connector of the cable detection device, the second connector plug of the cable is connected to the second transfer connector of the cable detection device, and the cable detection device includes The first detection module, the second detection module, the first semi-conduction detection circuit and the second semi-conduction detection circuit are set corresponding to each wire, and the first detection module and the first semi-conduction detection circuit are connected to the first transfer connection device, the second detection module and the second semi-conduction detection circuit are connected to the second transfer connector. The cable detection method includes the following steps: (A) Outputting the first test electrical signal from the first transfer connector to a certain wire, and sequentially passing through the second detection module corresponding to the certain wire to perform a through test, passing Voltage overcurrent protection test and short circuit test through the second detection module corresponding to other wires other than a certain wire; (B) If the through test is abnormal, output the second test electrical signal from the second transfer connector to the A certain wire, and sequentially pass through the first detection module corresponding to the certain wire to perform another through test, another overvoltage and overcurrent protection test and the first detection through other wires other than the corresponding wire The module conducts another short circuit test; (C) if the other through test is abnormal, input the third test electrical signal to the second semi-conduction detection circuit corresponding to the certain wire, and based on the principle of voltage division, the Conduct a semi-conductive self-test for a certain wire; (D) If the semi-conductive self-test is abnormal, input the fourth test electrical signal to the first semi-conductive detection circuit corresponding to the certain wire, and based on the principle of voltage division. (E) If an abnormality occurs in the overvoltage and overcurrent protection test, short circuit test, another overvoltage and overcurrent protection test, another short circuit test or the other half of the conduction self-test, an error will be reported and (F) pass another shoot-through test, another over-voltage over-current protection test, and another short-circuit test in sequence, or pass a semi-conductive If the other half conduction self-test, return to step (A) to detect the next wire until the detection of each wire of the cable is completed.

The present application provides a cable detection device, which includes: a first transfer connector, a second transfer connector, N first current source modules, N second current source modules, N first half Conduction detection circuit, N second semi-conduction detection circuits, N first detection modules, N second detection modules and processing modules, N is a positive integer greater than 1. The first transfer connector is configured as a first connector plug connected to a cable, and the cable includes N wires; the second transfer connector is configured as a second connector plug connected to a cable; N first current The source module, N first semi-conduction detection circuits, and N first detection modules are respectively connected to the first transfer connector and configured to correspond to N wires; N second current source modules, N first Two semi-conduction detection circuits and N second detection modules are respectively connected to the second transfer connector and configured to correspond to N wires; the processing module is connected to N first current source modules and N second current sources modules, N first semi-conduction detection circuits, N second semi-conduction detection circuits, N first detection modules and N second detection modules.

The processing module is configured to perform the following steps: (a) controlling the first current source module corresponding to a certain wire to output a first test electrical signal to the certain wire, and sequentially passing through the first current source module corresponding to the certain wire The second detection module conducts the through test, the overvoltage and overcurrent protection test, and the short circuit test through the second detection module corresponding to other wires other than the one wire; (b) if the through test is abnormal, control the The second current source module of the wire outputs the second test electrical signal to the certain wire, and sequentially passes through the first detection module corresponding to the certain wire to perform another through test, another overvoltage and overcurrent protection Test and perform another short-circuit test through the first detection module corresponding to other wires other than the one wire; (c) if the other through test is abnormal, control the output of the second current source module corresponding to the one wire The third test electrical signal is sent to the second semi-conduction detection circuit corresponding to the certain wire, and the semi-conduction self-test is performed on the certain wire based on the principle of voltage division; (d) if the semi-conduction self-test is abnormal, control the corresponding The first current source module of the certain wire outputs the fourth test electrical signal to the first semi-conduction detection circuit provided corresponding to the certain wire, and conducts another half-conduction automatic test on the certain wire based on the principle of voltage division. (e) If the overvoltage and overcurrent protection test, short circuit test, another overvoltage and overcurrent protection test, another short circuit test or the other half-conduction self-test are abnormal, an error prompt will be given; and (f) if the test passes in order Pass-through test, over-voltage over-current protection test and short-circuit test, pass another direct-through test, another over-voltage over-current protection test and another short-circuit test in sequence, or pass half-conduction self-test or another half-conduction self-test, then return In step (a), the next conductor is detected until the detection of each conductor of the cable is completed.

In the embodiment of the present application, through the symmetrical design of the cable detection device and the bidirectional detection design of the cable detection method, the cables can be inserted and detected at will regardless of specific directions. In addition, through the setting of the first detection module and the second detection module (that is, the design of step (A) and step (B) of the cable detection method), each conductor included in the cable is sequentially tested through the (that is, whether the wire is in a straight-through state), overvoltage and overcurrent protection test (that is, whether an overvoltage and overcurrent occurs when the wire is straight-through) and short-circuit test (that is, whether a wire is short-circuited with other wires when it is straight-through); and through the first half The setting of the conduction detection circuit and the second semi-conduction detection circuit (that is, the design of step (C) and step (D) of the cable detection method), conducts a semi-conduction detection for each wire included in the cable (that is, judges whether the wire is is semi-conductive); therefore, the cable detection method and detection device of the embodiment of the present application can realize two-way automatic detection of cables, reduce labor costs, enhance quality control, improve fool-proof measures, and improve industry development. In addition, the cable detection method and detection device of the embodiments of the present application can be applied to the first connector plug and/or the second connector plug provided with a chip (for example: a micro control unit) or a metal oxide semiconductor field effect circuit. Crystal (Metal Oxide Semiconductor Field Effect Transistor, MOSFET) cables are tested.

Embodiments of the present invention will be described below in conjunction with related figures. In these drawings, the same reference numerals indicate the same or similar components or method flows.

It must be understood that words such as "comprising" and "including" used in this specification are used to indicate the existence of specific technical features, values, method steps, operations, components and/or components, but do not exclude possible Add more technical characteristics, values, method steps, operation processes, components, components, or any combination of the above.

It must be understood that when an element is described as being "connected" or "coupled" to another element, it may be directly linked or coupled to the other element, intervening elements may be present. In contrast, when an element is described as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

In addition, although terms such as “first”, “second”, .

Please refer to FIG. 1 , which is a block diagram of an embodiment of a cable detection device of the present application for connecting cables. As shown in Figure 1, the cable detection device 1 includes: a first transfer connector 11, a second transfer connector 12, N first current source modules 13, N second current source modules 14, N N first semi-conduction detection circuits 15, N second semi-conduction detection circuits 16, N first detection modules 17, N second detection modules 18 and processing modules 19, where N is a positive integer greater than 1. In this embodiment, N may be but not limited to 2, but this embodiment is not intended to limit the present application.

Please refer to FIG. 2 , which is a schematic circuit diagram of an embodiment of the cable shown in FIG. 1 . As shown in Figure 2, the cable 2 includes a first connector plug 21, a second connector plug 22, and a wire 23a and a wire 23b connecting the first connector plug 21 and the second connector plug 22, wherein the second connection The connector plug 22 is provided with a micro control unit 231 and a MOSFET 232, the micro control unit 231 is connected to one end of the wire 23a, and the metal oxide semiconductor field effect transistor 232 is connected to one end of the wire 23b. In this embodiment, the first transfer connector 11 and the second transfer connector 12 are configured on the first connector plug 21 and the second connector plug 22 of the transfer cable 2, and the first connector plug 21 and the second connector plug 22 can be but not limited to Type-C connector, USB connector, High Definition Multimedia Interface (High Definition Multimedia Interface, HDMI) connector, Video Graphics Array (Video Graphics Array, VGA) connector , DB9 connector or RJ45 connector, the wire 23a and the wire 23b can be but not limited to the transmission line (that is, the charging line) that transmits a large voltage/current signal or the transmission line (that is, a data line) that transmits a small voltage/current signal, but this implementation Examples are not intended to limit the application.

In this embodiment, the first transfer connector 11 is configured to connect to the first connector plug 21 of the cable 2; the second transfer connector 12 is configured to connect to the second connector plug 22 of the cable 2; The two first current source modules 13, the two first semi-conduction detection circuits 15 and the two first detection modules 17 are respectively connected to the first transfer connector 11 and configured to correspond to the wires 23a and 23b (ie One end of the wire 23a and the wire 23b are respectively connected to a first current source module 13, a first semi-conduction detection circuit 15 and a first detection module 17); two second current source modules 14, two second The two semi-conduction detection circuits 16 and the two second detection modules 18 are respectively connected to the second transfer connector 12 and are configured to correspond to the wire 23a and the wire 23b (that is, the other ends of the wire 23a and the wire 23b are respectively connected to a first Two current source modules 14, a second semi-conduction detection circuit 16 and a second detection module 18); the processing module 19 is connected to two first current source modules 13, two second current source modules 14, Two first semi-conduction detection circuits 15 , two second semi-conduction detection circuits 16 , two first detection modules 17 and two second detection modules 18 .

The processing module 19 is configured to perform the following steps: (a) Control the first current source module 13 corresponding to the wire 23a to output the first test electrical signal to the wire 23a, and sequentially pass through the second detection module 18 corresponding to the wire 23a Carry out the through test, the overvoltage and overcurrent protection test and the short circuit test through the second detection module 18 corresponding to the wire 23b; (b) if the through test is abnormal, control the second current source module 14 corresponding to the wire 23a to output the second test The electrical signal is sent to the lead wire 23a, and is sequentially passed through the first detection module 17 corresponding to the lead wire 23a to perform another through test, another overvoltage and overcurrent protection test and another short circuit through the first detection module 17 of the corresponding lead wire 23b Test; (c) If the other through test is abnormal, control the second current source module 14 corresponding to the wire 23a to output the third test electrical signal to the second semi-conduction detection circuit 16 provided on the corresponding wire 23a, and based on the principle of voltage division. Conducting a semi-conductive self-test on the wire 23a; (d) if the semi-conductive self-test is abnormal, control the first current source module 13 corresponding to the wire 23a to output the fourth test electrical signal to the first semi-conductive detection circuit 15 provided on the corresponding wire 23a, And based on the principle of voltage division, the other half of the conduction self-test is performed on the wire 23a; (e) if the overvoltage and overcurrent protection test, short circuit test, another overvoltage and overcurrent protection test, another short circuit test or the other half of the conduction self-test is abnormal , give an error message; and (f) If the through test, the overvoltage overcurrent protection test and the short circuit test are passed in sequence, pass another through test, another overvoltage overcurrent protection test and another short circuit test in sequence, or pass For the semi-conductive self-test or another semi-conductive self-test, return to step (a) to detect the wire 23b until the detection of each wire of the cable 2 is completed.

It should be noted that performing the through test, overvoltage and overcurrent protection test, and short circuit test in sequence in step (a) and step (b) means that the wire 23a passes the through test (that is, confirms that the wire 23a is in a straight-through state). Carry out the overvoltage and overcurrent protection test, and then, the wire 23a passes the overvoltage and overcurrent protection test (that is, confirm that the wire 23a does not have an overvoltage/overcurrent condition) before performing the short circuit test (that is, detect whether the wire 23a is shorted with the wire 23b) ).

In one embodiment, each first current source module 13 includes a first switch unit 131 and a first current source unit 132, and the first switch unit 131 is connected to the first current source unit 132, the first transfer connector 11 and The processing module 19, the first current source unit 132 is connected to the processing module 19, the processing module 19 controls the on-off state of the first switch unit 131 and controls the first test electrical signal output by the first current source unit 132 or the fourth Test the electrical signal so that the first current source module 13 outputs the first test electrical signal or the fourth test electrical signal; each second current source module 14 includes a second switch unit 141 and a second current source unit 142, the second The second switch unit 141 is connected to the second current source unit 142, the second transfer connector 12 and the processing module 19, the second current source unit 142 is connected to the processing module 19, and the processing module 19 controls the communication of the second switch unit 141. The off state and control the second test electrical signal or the third test electrical signal output by the second current source unit 142, so that the second current source module 14 outputs the second test electrical signal or the third test electrical signal.

In one embodiment, in order to avoid the possibility that the first test electrical signal output by the first current source module 13 may flow to the first detection module 17, the first semi-conduction detection circuit 15 and the second semi-conduction detection circuit 16 And the fourth test electrical signal output by the first current source module 13 has the possibility of flowing to the first detection module 17, the second detection module 18 and the second semi-conduction detection circuit 16, the first detection module 17, The second detection module 18, the first semi-conduction detection circuit 15 and the second semi-conduction detection circuit 16 can each include a third switch unit 50, and the third switch unit 50 is connected to the processing module 19; the processing module 19 can simultaneously control The on-off state of the first switch unit 131 and the third switch unit 50 and control the first test electrical signal or the fourth test electrical signal output by the first current source unit 132, so that the first test signal output by the first current source unit 132 The electrical signal flows to the second detection module 18 only through the corresponding wire, and the fourth test electrical signal output by the first current source unit 132 flows to the first semi-conduction detection circuit 15 only through the corresponding wire. Similarly, the second test electrical signal output by the second current source module 14 has the possibility of flowing to the second detection module 18, the first semi-conduction detection circuit 15 and the second semi-conduction detection circuit 16, and the second current source The third test electrical signal output by the module 14 may flow to the first detection module 17, the second detection module 18 and the first semi-conduction detection circuit 15, and the processing module 19 can simultaneously control the second switch unit 141 and the on-off state of the third switch unit 50 and control the second test electrical signal or the third test electrical signal output by the second current source unit 142, so that the second test electrical signal output by the second current source unit 142 only passes through the corresponding The wires flow to the first detection module 17, and the third test electrical signal output by the second current source unit 142 flows to the second semi-conduction detection circuit 16 only through the corresponding wires.

Please refer to FIG. 3 , which is a connection schematic diagram of an embodiment of the processing module, the second transfer connector, and the second detection module in FIG. 1 . As shown in FIG. 3 , each second detection module 18 can also include a second resistor voltage divider sampling circuit 181, a second short circuit/open circuit detection circuit 182 and a second overvoltage and overcurrent protection circuit 183, wherein the second resistor The voltage dividing sampling circuit 181 includes a load resistor 1811 and a sampling resistor 1812 connected in series, one end of the load resistor 1811 is connected to the second transfer connector 12 and one end of the second short circuit/open circuit detection circuit 182, and the other end of the load resistor 1811 is connected to the sampling resistor One end of 1812, the other end of the sampling resistor 1812 is grounded, the voltage dividing place of the second resistor divider sampling circuit 181 is connected to one end of the second overvoltage and overcurrent protection circuit 183, the other end of the second short circuit/open circuit detection circuit 182 and the second end of the second short circuit/open circuit detection circuit 182 2. The other end of the overvoltage and overcurrent protection circuit 183 is connected to the processing module 19, the resistance value of the load resistor 1811 is greater than the resistance value of the sampling resistor 1812, and the resistance value of the load resistor 1811 can be adjusted according to the electric power of the electronic product used by the cable 2 . Therefore, through the setting of the second resistor voltage-dividing sampling circuit 181, the function of preventing large-voltage and high-current surges can be provided, and the second detection module 18 can perform load-through tests, over-voltage and over-current protection tests, and short-circuit tests. ; through the setting of the second resistance voltage sampling circuit 181, the second short circuit/open circuit detection circuit 182 and the second overvoltage and overcurrent protection circuit 183, the step (a) may include: through the second short circuit/open circuit detection circuit 182 Judging whether the end of the wire 23a connected to the second transfer connector 12 has a feedback electrical signal corresponding to the first test electrical signal, if so, the through test is normal, otherwise the through test is abnormal; through the second overvoltage and overcurrent protection The circuit 183 judges whether an overvoltage and overcurrent occurs at the end of the wire 23a connected to the second transfer connector 12. If it occurs, the overvoltage and overcurrent protection test is abnormal, otherwise the overvoltage and overcurrent protection test is normal; and through the corresponding wire 23b The second short-circuit/open-circuit detection circuit 182 judges whether the end of the wire 23b connected to the second transfer connector 12 has a response electrical signal. If so, the short-circuit test is abnormal; otherwise, the short-circuit test is normal.

Specifically, when the processing module 19 controls the first current source module 13 corresponding to the wire 23a to output the first test electrical signal to the wire 23a, the processing module 19 first obtains the The voltage at one end of the wire 23a connected to the second transfer connector 12, and then judge whether the end of the wire 23a connected to the second transfer connector 12 has a feedback electrical signal (if the voltage at one end of the wire 23a connected to the second transfer connector 12 If it is greater than the first reference voltage, it means that the end of the wire 23a connected to the second transfer connector 12 has a feedback electrical signal, and the wire 23a is in a straight-through state). The test is abnormal; after the processing module 19 judges that the wire 23a has passed the straight-through test, the second overvoltage and overcurrent protection circuit 183 obtains the voltage at the voltage division of the second resistance voltage dividing sampling circuit 181, and then judges that the wire 23a is connected to the second switch Whether an overvoltage and overcurrent occurs at one end of the connector 12 (if the voltage of the sampling resistor 1812 is greater than the second reference voltage, it means that an overvoltage and overcurrent has occurred), if there is no overvoltage and overcurrent, it means that the overvoltage and overcurrent protection test is normal (that is, pass the overvoltage and overcurrent protection test), otherwise, the overvoltage and overcurrent protection test is abnormal; after the processing module 19 judges that the wire 23a has passed the overvoltage and overcurrent protection test, it passes through the second short circuit/open circuit detection circuit 182 of the corresponding wire 23b Acquire the voltage of one end of the wire 23b connected to the second transfer connector 12, and then judge whether the end of the wire 23b connected to the second transfer connector 12 has a response electrical signal (if the wire 23b is connected to one end of the second transfer connector 12 If the voltage is greater than the third reference voltage, it means that the wire 23a is short-circuited with the wire 23b), if the wire 23a is not short-circuited with the wire 23b, it means that the short-circuit test is normal, otherwise, the short-circuit test is abnormal. Wherein, the first reference voltage, the second reference voltage and the third reference voltage can be adjusted according to actual needs.

In one embodiment, each second short circuit/open circuit detection circuit 182 may include a second sampling unit 1821 and a third comparator 1822, one end of the second sampling unit 1821 is connected to one end of the load resistor 1811, and one end of the second sampling unit 1821 The other end is connected to the input terminal Vin1 of the third comparator 1822; the third comparator 1822 is configured to compare the voltage of the input terminal Vin1 with the preset voltage Vref1 of the other input terminal Vin2 and then output the third comparison level to the processing module 19 so that the processing module 19 judges whether the straight-through test or the short-circuit test of the corresponding wire is normal based on the third comparison level. Wherein, the preset voltage Vref1 can be provided by setting additional hardware (for example: a fixed resistor voltage divider circuit or a resistor adjustable voltage divider circuit), or the preset voltage Vref1 can be provided by the processing module 19 . In this embodiment, through the setting of the third comparator 1822 , the processing module 19 is prevented from making wrong judgment on the test result due to the voltage fluctuation of the input terminal Vin1 . For example, when the processing module 19 conducts a through test on the wire 23a, if the third comparison level is a high level (that is, the voltage of the input terminal Vin1 is greater than the preset voltage Vref1 of the input terminal Vin2), the processing module 19 judges The through test is normal, otherwise, it is judged that the through test is abnormal; when the processing module 19 performs a short-circuit test on the wire 23a, if the third comparison level is high level (that is, the voltage of the input terminal Vin1 is greater than the preset voltage Vref1 of the input terminal Vin2 ), the processing module 19 judges that the short-circuit test is abnormal, otherwise it judges that the short-circuit test is normal.

In one embodiment, each second overvoltage and overcurrent protection circuit 183 includes a second amplifier 1831 and a fourth comparator 1832, one end of the second amplifier 1831 is connected to the voltage division of the second resistor voltage division sampling circuit 181, the second The other end of the second amplifier 1831 is connected to the input terminal Vin3 of the fourth comparator 1832; the fourth comparator 1832 is configured to compare the voltage of the input terminal Vin3 with the preset voltage Vref2 of the other input terminal Vin4 and then output the fourth comparison level to The processing module 19 is used to make the processing module 19 determine whether the overvoltage and overcurrent protection test of the corresponding wire is normal based on the fourth comparison level. Wherein, the preset voltage Vref2 can be provided by setting additional hardware (for example: a fixed resistor voltage divider circuit or a resistor adjustable voltage divider circuit), or the preset voltage Vref2 can be provided by the processing module 19 . In this embodiment, through the setting of the fourth comparator 1832, the processing module 19 is prevented from making a wrong judgment on the test result due to the voltage fluctuation of the input terminal Vin3; through the second overvoltage and overcurrent protection circuit 183, the second resistance The setting of the voltage division point of the voltage division sampling circuit 181 realizes the voltage-dividing protection measures of the step-down current-limiting resistor. When the voltage of the sampling resistor 1812 increases and is greater than the preset voltage Vref2 of the input terminal Vin4 of the fourth comparator 1832, Indicates that an overvoltage/overcurrent abnormality has occurred. For example, when the processing module 19 performs an overvoltage and overcurrent protection test on the wire 23a, if the fourth comparison level is high (the voltage of the input terminal Vin3 is greater than the preset voltage Vref2 of the input terminal Vin4), the processing module will Group 19 judges that the overvoltage and overcurrent protection test is abnormal; otherwise, it judges that the overvoltage and overcurrent protection test is normal.

It should be noted that the cable detection device 1 adopts a symmetrical design, and the structure and operation principle of the first detection module 17 and the second detection module 18 are similar. Therefore, the operation process of step (b) is similar to step (a), so No longer.

Please refer to FIG. 4 , which is a connection schematic diagram of an embodiment of the processing module, the second current source module, the second transfer connector, and the second semi-conduction detection circuit in FIG. 1 . As shown in Figure 4, each second semi-conduction detection circuit 16 includes a second voltage divider circuit 161, a second clamp protection circuit 162 and a second comparator 163; one end of the second voltage divider circuit 161 is connected to the corresponding The second current source module 14, the other end of the second voltage dividing circuit 161 is connected to one end of the second clamping protection circuit 162, and the voltage dividing part of the second voltage dividing circuit 161 is connected to the second transfer connector 12. The two voltage divider circuit 161 includes a first resistor 1611 and a second resistor 1612 connected in series; the other end of the second clamp protection circuit 162 is connected to the input terminal Vin5 of the second comparator 163, and the second clamp protection circuit 162 is configured as Limit the voltage of the input terminal Vin5 of the second comparator 163; the second comparator 163 is configured to compare the voltage of the input terminal Vin5 with the preset voltage Vref3 of another input terminal Vin6 and then output the second comparison level to the processing module 19 , so that the processing module 19 determines whether the semi-conduction self-test is normal based on the second comparison level. Among them, the preset voltage Vref3 can be provided by setting additional hardware (for example: a fixed resistor voltage divider circuit or a resistor adjustable voltage divider circuit), or the preset voltage Vref3 can be provided by the processing module 19; through the second comparison The setting of the device 163 prevents the processing module 19 from making a wrong judgment on the test result due to the voltage fluctuation of the input terminal Vin5; through the setting of the second voltage divider circuit 161, it plays the role of stepping down and limiting the current, preventing the circuit loop from forming a large current, causing components in the circuit to fail.

Specifically, if the wire 23a/wire 23b is in a semi-conducting state, the wire 23a/wire 23b has an equivalent internal resistance, and the voltage at the voltage divider of the second voltage dividing circuit 161 will be relatively low; if the wire 23a/wire 23b When it is not in a semi-conducting state, there is no equivalent internal resistance in the wire 23a/wire 23b, and the voltage on the voltage division of the second voltage dividing circuit 161 will be higher; therefore, the second transfer connector is connected through the voltage division 12, the setting of the second voltage dividing circuit 161, the processing module 19 can judge whether the wire 23a/wire 23b is in a semi-conducting state, when the voltage on the voltage dividing place of the second voltage dividing circuit 161 is protected by the second clamp When the clamping protection of the circuit 162 is greater than the preset voltage Vref3 of the input terminal Vin6 of the second comparator 163, it means that the wire 23a/wire 23b is not in a semi-conducting state, and the semi-conducting self-test is abnormal. For example, when the processing module 19 conducts a semi-conduction self-test on the wire 23a, if the second comparison level is high (the voltage at the input terminal Vin5 is greater than the preset voltage Vref3 at the input terminal Vin6), the processing module 19 It is judged that the semi-conductive self-test is abnormal, otherwise, it is judged that the semi-conductive self-test is normal.

That is to say, the step (c) may include: judging whether the certain wire 23 is in a semi-conducting state through the electrical signal obtained by the second semi-conducting detection circuit 16 connected to the second transfer connector 12 , if , the semi-conductive self-test is normal, otherwise, the semi-conductive self-test is abnormal.

It should be noted that the cable detection device 1 adopts a symmetrical design, and the structure and operation principle of the first semi-conduction detection circuit 15 and the second semi-conduction detection circuit 16 are similar. Therefore, the operation process of step (d) is similar to that of step (c). , so no more details. In addition, step (c) and step (d) are applicable to the first connector plug 21 and/or the second connector plug 22 provided with a chip (for example: micro control unit) or metal oxide semiconductor field effect transistor Cable 2 conducts a semi-conductive self-test.

Please refer to FIG. 5 , which is a block diagram of another embodiment of the cable detection device of the present application for connecting cables. As shown in Figure 5, the cable detection device 1 may also include a swing machine 3, which is connected to a processing module 19; the processing module 19 performs the step (a), the step (b), the step ( c) and the step (d), the cable 2 is swayed at different angles with the swaying machine 19 at the same time.

In an example, please refer to FIG. 6 , which is a block diagram of an embodiment of the swing machine connection processing module in FIG. 5 . As shown in Figure 6, the swinging machine 3 can be a manual swinging machine, and the manual swinging machine includes a plurality of positioning buttons 31, a pedal switch 32, a relay 33, a solenoid valve 34 and a cylinder 35 in a dispersed configuration, and a plurality of positioning buttons 31. The foot pedal switch 32 and the relay 33 are connected to the processing module 19; in this embodiment, the number of positioning buttons 31 can be but not limited to eight, and the configuration position of the positioning buttons 31 can be adjusted according to actual measurement requirements; After the cable 2 to be detected is connected to the cable detection device 1, the user presses the pedal switch 32, so that the pedal switch 32 transmits a signal to the processing module 19, and the processing module 19 turns on the relay 33 to control the solenoid valve 34 Start the cylinder 35 to compress the cable 2; then, the user swings the cable 2 (it can be rotated clockwise or counterclockwise), but the user needs to touch a plurality of The positioning button 31 (that is, the user presses a plurality of positioning buttons 31 to perform swing positioning), and at this time, the processing module 19 is used to perform the test from the above steps (a) to (d); when the plurality of positioning buttons 31 are all touched Finally, the processing module 19 obtains the test results of the various wires of the cable 2 at different swing angles; then, the user presses the foot pedal switch 32 again, so that the foot pedal switch 32 transmits the signal to the processing module 19 again, and the processing The module 19 turns off the relay so that the cylinder 35 is lifted; the user can remove the tested cable 2 to test the next cable 2 . It should be noted that, in order to avoid the drawing of FIG. 6 being too complicated, the connection lines between the positioning button 31 , the pedal switch 32 and the relay 33 and the processing module 19 are omitted.

In another example, please refer to FIG. 7 , which is a block diagram of another embodiment of the swing machine connection processing module in FIG. 5 . As shown in Figure 7, the swinging machine 3 can be an automatic swinging machine, which includes a fixing device 36 and a motor 37, and the motor 37 is connected to the processing module 19; after the cable 2 is connected to the cable detection device 1, the fixing device 36 is configured to fix the cable 2; then, when the processing module 19 performs the test from the above steps (a) to (d), at the same time, the control motor 37 starts to periodically rotate and swing the cable 2 to obtain the cable 2 The test results of each wire in different swing angles; then, the user can remove the tested cable 2 to test the next cable 2.

Please refer to FIG. 8 , which is a block diagram of another embodiment of the cable detection device of the present application for connecting cables. As shown in Figure 8, the cable detection device 1 can also include a voice playback module 5, a display module 6 and a light emitting module 7, connected to a processing module 19; the voice playback module 5 is configured to perform voice error reporting (for example: The voice playback module 5 broadcasts the abnormality of the straight-through test of the reporting line 23a); the display module 6 is configured to carry out text error reporting (for example: the display module 6 shows that the straight-through test of the wire 23a is abnormal), and the display of each wire of the cable 2 Test results (for example: the display module 6 displays the test results of each wire at different swing angles); the light emitting module 7 is configured to use a specific light color to report an error (for example: the light emitting module 7 emits green light to indicate that the overall test is normal, and the light emitting The red light emitted by the module 7 means that a certain test of the wire 23a is abnormal). In other embodiments, the cable detection device 1 may include any one or both of the voice playback module 5 , the display module 6 and the light emitting module 7 .

Please refer to FIG. 9 , which is a block diagram of yet another embodiment of the cable detection device of the present application for connecting cables. As shown in FIG. 9 , the cable detection device 1 may also include a communication module 8 connected to a processing module 19 and configured to receive test instructions from a host computer (not shown), so that the processing module 19 may The test command starts to execute the step (a); and transmits the test results of each conductor of the cable 2 to the host computer. Wherein, the communication module 8 can communicate with the host computer through wired or wireless means, therefore, the user can remotely control the cable detection device 1 to detect the cable 2 . In one embodiment, the cable detection device 1 may further include a start button 9 connected to the processing module 19 and configured to generate a start signal after being pressed, so that the processing module 19 starts to execute the Step (a).

In one embodiment, when the processing module 19 reports an error, the cable detection device 1 stops testing the cable 2 . In other words, when any one of the tests is abnormal, it means that the quality of the cable 2 is not good, and the cable detection device 1 does not need to perform subsequent tests on the cable 2, which saves testing time.

Please refer to FIG. 10 , which is a flowchart of an embodiment of the cable detection method of the present application. As shown in FIG. 10 , the cable detection method 10 is applied to a cable detection device for detecting cables, and the cables include a first connector plug, a second connector plug, and a plug connecting the first connector plug and the second connector plug. A plurality of wires, the first connector plug of the cable is connected to the first transfer connector of the cable detection device, the second connector plug of the cable is connected to the second transfer connector of the cable detection device, the cable detection device It includes a first detection module, a second detection module, a first semi-conduction detection circuit and a second semi-conduction detection circuit corresponding to each wire, and the first detection module and the first semi-conduction detection circuit are connected to the first switch The connector, the second detection module and the second semi-conduction detection circuit are connected to the second transfer connector.

The cable detection method 10 includes: outputting the first test electrical signal from the first transfer connector to a certain wire, and sequentially passing through the second detection module corresponding to the certain wire to perform the through test, overvoltage and overcurrent protection Test and conduct a short circuit test through the second detection module corresponding to other wires other than a certain wire (step 101); if the through test is abnormal, output a second test electrical signal from the second transfer connector to the certain wire , and sequentially perform another through test, another overvoltage and overcurrent protection test through the first detection module corresponding to the certain wire, and conduct through the first detection module corresponding to other wires other than the certain wire Another short-circuit test (step 102); if the other through test is abnormal, input the third test electrical signal to the second semi-conduction detection circuit corresponding to the certain wire, and test the certain wire based on the principle of voltage division. conduct a semi-conductive self-test on the wire (step 103); if the semi-conductive self-test is abnormal, input the fourth test electrical signal to the first semi-conductive detection circuit corresponding to the certain wire, and test the Perform another half-conduction self-test for a certain wire (step 104); if an abnormality occurs in the overvoltage and overcurrent protection test, short circuit test, another overvoltage and overcurrent protection test, another short circuit test, or the other half of the conduction self-test, an error will be reported Prompt (step 105); and if pass through test, overvoltage and overcurrent protection test and short circuit test in sequence, pass through another through test, another overvoltage and overcurrent protection test and another short circuit test in sequence, or pass semi-conduction Self-inspection or the other half conduction self-inspection, return to step 101 to detect the next wire until the detection of each wire of the cable is completed (step 106 ). For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

In an embodiment, each second detection module may include a second resistor voltage divider sampling circuit, a second short circuit/open circuit detection circuit, and a second overvoltage and overcurrent protection circuit, wherein the second resistor voltage divider sample circuit includes The load resistor and the sampling resistor are connected in series, one end of the load resistor is connected to the second transfer connector and the second short circuit/open circuit detection circuit, the other end of the load resistor is connected to one end of the sampling resistor, the other end of the sampling resistor is grounded, and the second resistor divides The voltage divider of the voltage sampling circuit is connected to the second overvoltage and overcurrent protection circuit; the step 101 may include: judging whether the end of the certain wire connected to the second transfer connector has a corresponding If there is a feedback electrical signal of the first test electrical signal, the through test is normal, otherwise, the through test is abnormal; through the second overvoltage and overcurrent protection circuit, it is judged that the certain wire is connected to one end of the second transfer connector Whether overvoltage and overcurrent occurs, if it occurs, the overvoltage and overcurrent protection test is abnormal, otherwise, the overvoltage and overcurrent protection test is normal; and through the second short circuit/open circuit detection circuit corresponding to other wires other than the one wire, Judging whether the end of the other wire connected to the second transfer connector has a response electrical signal, if yes, the short-circuit test is abnormal, otherwise, the short-circuit test is normal. For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

In one embodiment, the step 103 may include: judging whether the certain wire If it is semi-conductive, if it is, the semi-conductive self-test is normal, otherwise, the semi-conductive self-test is abnormal. For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

In an embodiment, the cable detection device may include a swinging machine, and when the cable detection device performs the step 101, the step 102, the step 103 and the step 104, it can simultaneously cooperate with the swinging machine to perform Sway from different angles. For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

In one embodiment, the error reporting in step 105 may include: voice error reporting through the voice playback module; text error reporting through the display module; and/or error reporting through the light emitting module with a specific luminous color. For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

Please refer to FIG. 11 , which is a flowchart of another embodiment of the cable detection method of the present application. As shown in FIG. 11 , before the step 101 , it may further include: receiving a test command from the host computer or an activation signal of an activation button (step 101 a ), so as to start to execute the step 101 . It should be noted that, in order to avoid the drawing in FIG. 11 being too complicated, the drawing steps 102 to 106 are omitted. For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

Please refer to FIG. 12 , which is a flow chart of another embodiment of the cable detection method of the present application. As shown in FIG. 12 , the cable detection method 10 may further include: when an error prompt is given, stop testing the cable (step 107 ). It should be noted that, in order to avoid the drawing in FIG. 12 being too complicated, drawing steps 101 to 104 and 106 are omitted. For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

In an embodiment, the cable detection method 10 may further include: transmitting the test results of each conductor of the cable to a host computer or displaying them through a display module. For a detailed description, please refer to the relevant description content of the embodiment of the above-mentioned cable detection device 1 , which will not be repeated here.

To sum up, the application uses the symmetrical design of the cable detection device and the bidirectional detection design of the cable detection method, so that the cable can be inserted and detected in any direction regardless of the specific direction. In addition, through the setting of the first detection module and the second detection module (that is, the design of step 101 and step 102 of the cable detection method), this application conducts a through test on each conductor included in the cable in sequence (that is, Whether the wire is in a straight-through state), over-voltage and over-current protection test (that is, whether an over-voltage and over-current occurs when the wire is straight-through) and short-circuit test (that is, whether a wire is short-circuited with other wires when it is straight-through); and through the first semi-conduction detection The circuit and the setting of the second semi-conduction detection circuit (i.e. the design of step 103 and step 104 of the cable detection method) perform semi-conduction detection on each wire included in the cable (i.e. determine whether the wire is semi-conduction); therefore , The cable detection method and detection device can realize two-way automatic detection of cables, reduce labor costs, enhance quality control, improve fool-proof measures, and improve industry development. In addition, the cable detection method and detection device of the embodiments of the present application can be applied to the first connector plug and/or the second connector plug provided with a chip (for example: a micro control unit) or a metal oxide semiconductor field effect circuit. The crystal cable is tested.

While the invention has been described using the above examples, it should be noted that these descriptions are not configured to limit the invention. On the contrary, this invention covers modifications and similar arrangements obvious to those skilled in the art. Therefore, the claims must be construed in the broadest manner to include all obvious modifications and similar arrangements.

1: Cable detection device 2: cable 3: Swing machine 5:Voice playback module 6: Display module 7: Lighting module 8: Communication module 9: Start button 10: Cable detection method 11: The first transfer connector 12:Second transfer connector 13: The first current source module 14: The second current source module 15: The first semi-conduction detection circuit 16: Second semi-conduction detection circuit 17: The first detection module 18: Second detection module 19: Processing modules 21: First connector plug 22: Second connector plug 23a, 23b: wire 31: Positioning button 32: Foot pedal switch 33: Relay 34: Solenoid valve 35: Cylinder 36: Fixtures 37: motor 50: The third switch unit 101~107, 101a: steps 131: the first switch unit 132: the first current source unit 141: second switch unit 142: second current source unit 161: The second voltage divider circuit 162: The second clamp protection circuit 163: second comparator 181: The second resistor divider sampling circuit 182: Second short circuit/open circuit detection circuit 183: The second overvoltage and overcurrent protection circuit 231: Micro control unit 232: Metal Oxide Semiconductor Field Effect Transistor 1611: first resistance 1612: second resistance 1811: load resistance 1812: Sampling resistor 1821: Second sampling unit 1822: The third comparator 1831: Second Amplifier 1832: The fourth comparator Vin1, Vin2, Vin3, Vin4, Vin5, Vin6: input terminals Vref1, Vref2, Vref3: preset voltage

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the schema: Fig. 1 is a block diagram of an embodiment of the cable detection device of the present application connected to the cable; Fig. 2 is a schematic circuit structure diagram of an embodiment of the cable of Fig. 1; Fig. 3 is a connection schematic diagram of an embodiment of the processing module, the second transfer connector, and the second detection module of Fig. 1; FIG. 4 is a connection schematic diagram of an embodiment of the processing module, the second current source module, the second transfer connector, and the second semi-conduction detection circuit of FIG. 1; Fig. 5 is a block diagram of another embodiment of the cable detection device of the present application connected to the cable; Fig. 6 is a block diagram of an embodiment of the swing machine connection processing module of Fig. 5; Fig. 7 is a block diagram of another embodiment of the swing machine connection processing module of Fig. 5; Fig. 8 is a block diagram of another embodiment of the cable detection device of the present application connected to the cable; Fig. 9 is a block diagram of yet another embodiment of the cable detection device of the present application connected to the cable; Fig. 10 is a flowchart of an embodiment of the cable detection method of the present application; FIG. 11 is a flow chart of another embodiment of the cable detection method of the present application; and Fig. 12 is a flowchart of another embodiment of the cable detection method of the present application.

10: Cable detection method

101~106: Steps

Claims (20)

A cable detection method, applied to a cable detection device for detecting a cable, the cable includes a first connector plug, a second connector plug and a connection between the first connector plug and the second connector A plurality of wires of the plug, the first connector plug is connected to a first transfer connector of the cable detection device, the second connector plug is connected to a second transfer connector of the cable detection device, the cable The line detection device includes a first detection module, a second detection module, a first semi-conduction detection circuit and a second semi-conduction detection circuit arranged corresponding to each wire, the first detection module and the first The semi-conductive detection circuit is connected to the first transfer connector, the second detection module and the second semi-conductive detection circuit are connected to the second transfer connector, and the cable detection method includes the following steps: (A) Output a first test electrical signal from the first transfer connector to a certain wire, and sequentially pass through the second detection module corresponding to the certain wire to perform a straight-through test, an overvoltage and overcurrent protection testing and performing a short circuit test through the second detection module corresponding to other wires than the one wire; (B) If the direct test is abnormal, output a second test electrical signal from the second transfer connector to the certain wire, and perform another direct test through the first detection module corresponding to the certain wire in sequence. conduct a pass test, another overvoltage and overcurrent protection test, and conduct another short circuit test through the first detection module corresponding to other wires other than the certain wire; (C) If the other straight-through test is abnormal, input a third test electrical signal to the second semi-conduction detection circuit corresponding to the certain wire, and perform half-conduction on the certain wire based on a voltage dividing principle self-test; (D) If the semi-conduction self-test is abnormal, input a fourth test electrical signal to the first semi-conduction detection circuit corresponding to the certain wire, and conduct the other half of the certain wire based on the voltage division principle. Conduction self-test; (E) If the overvoltage and overcurrent protection test, the short circuit test, the other overvoltage and overcurrent protection test, the other short circuit test or the other semi-conduction self-test is abnormal, an error message is given; and (F) If the through test, the overvoltage overcurrent protection test and the short circuit test are passed in sequence, the other through test, the other overvoltage overcurrent protection test and the other short circuit test are passed in sequence, and the If the semi-conductive self-test is passed, or the other semi-conductive self-test is passed, return to the step (A) to detect the next wire until the detection of each wire of the cable is completed. The cable detection method according to claim 1, wherein each of the second detection modules includes a second resistance voltage divider sampling circuit, a second short circuit/open circuit detection circuit and a second overvoltage and overcurrent protection circuit , wherein the second resistance voltage sampling circuit includes a load resistor and a sampling resistor connected in series, one end of the load resistor is connected to the second transfer connector and the second short circuit/open circuit detection circuit, and the other end of the load resistor One end is connected to one end of the sampling resistor, the other end of the sampling resistor is grounded, and a voltage divider of the second resistor divider sampling circuit is connected to the second overvoltage and overcurrent protection circuit; the step (A) includes: Through the second short-circuit/open-circuit detection circuit, it is judged whether the end of the certain wire connected to the second transfer connector has a feedback electrical signal corresponding to the first test electrical signal, and if so, the straight-through test is normal, otherwise The pass-through test is abnormal; Through the second overvoltage and overcurrent protection circuit, it is judged whether an overvoltage and overcurrent occurs at the end of the certain wire connected to the second transfer connector. If it occurs, the overvoltage and overcurrent protection test is abnormal; otherwise, the overvoltage and overcurrent The overcurrent protection test is OK; and Through the second short-circuit/open-circuit detection circuit corresponding to other wires other than the certain wire, it is judged whether the end of the other wire connected to the second transfer connector has a response electrical signal, and if so, the short-circuit test is abnormal, Otherwise, the short circuit test is normal. The cable detection method as described in claim 1, wherein the step (C) includes: a second half-conduction detection circuit obtained through the second semi-conduction detection circuit connected to the end of the certain wire connected to the second transfer connector Electric signal to judge whether the certain wire is semi-conductive, if yes, the semi-conductive self-test is normal, otherwise, the semi-conductive self-test is abnormal. The cable detection method according to claim 1, wherein the cable detection device includes a swing machine, and the cable detection device performs the step (A), the step (B), the step (C) and the step (D), at the same time with the swing machine to swing the cable at different angles. The cable detection method as described in claim item 1, wherein, before the step (A), it also includes: Receive a test command from a host computer or a start signal from a start button to start executing the step (A). The cable detection method as described in claim item 1, wherein the error prompting in step (E) includes: Perform a voice error report through a voice playback module; report a text error through a display module; and/or An error is reported by using a specific luminous color through a luminous module. The cable detection method as described in claim 1, further comprising: When the error message is displayed, stop testing the cable. The cable detection method as described in claim 1, further comprising: A test result of each conductor of the cable is transmitted to a host computer or displayed through a display module. A cable detection device, comprising: A first transfer connector configured as a first connector plug connected to a cable, wherein the cable includes N wires, and N is a positive integer greater than 1; a second transition connector configured to connect to a second connector plug of the cable; N first current source modules connected to the first transfer connector and configured to correspond to the N wires; N second current source modules connected to the second transfer connector and configured to correspond to the N wires; N first semi-conduction detection circuits, connected to the first transfer connector and configured to correspond to the N wires; N second semi-conduction detection circuits, connected to the second transfer connector and configured to correspond to the N wires; N first detection modules, connected to the first transfer connector and the corresponding N wires; N second detection modules, connected to the second transfer connector and the corresponding N wires; and A processing module, connected to the N first current source modules, the N second current source modules, the N first semi-conduction detection circuits, the N second semi-conduction detection circuits, and the Nth A detection module and the N second detection modules, the processing module is configured to perform the following steps: (a) Controlling a first current source module corresponding to a certain wire to output a first test electrical signal to the certain wire, and sequentially performing a straight-through test through a second detection module corresponding to the certain wire, An over-voltage and over-current protection test and a short-circuit test through the second detection module for other wires other than the certain wire; (b) If the through test is abnormal, control a second current source module corresponding to the certain wire to output a second test electrical signal to the certain wire, and sequentially pass through a first detection corresponding to the certain wire The module performs another through test, another overvoltage and overcurrent protection test, and another short circuit test through the first detection module corresponding to other wires than the one wire; (c) If the other through test is abnormal, control the second current source module corresponding to the certain wire to output a third test electrical signal to a second semi-conduction detection circuit corresponding to the certain wire, and based on A partial voltage principle conducts a half-conduction self-test on a certain wire; (d) If the semi-conduction self-test is abnormal, control the first current source module corresponding to the certain wire to output a fourth test electrical signal to a first semi-conduction detection circuit corresponding to the certain wire, and based on The principle of voltage division conducts another half-conduction self-test on a certain wire; (e) If the overvoltage and overcurrent protection test, the short circuit test, the other overvoltage and overcurrent protection test, the other short circuit test or the other half-conduction self-test is abnormal, an error message is given; and (f) If the shoot-through test, the overvoltage overcurrent protection test, and the short circuit test are passed in sequence, the other shoot-through test, the other overvoltage overcurrent protection test, and the other short circuit test are passed in sequence, or the The semi-conductive self-test or the other semi-conductive self-test returns to the step (a) to detect the next wire until the detection of each wire of the cable is completed. The cable detection device according to claim 9, wherein each of the N first current source modules includes a first switch unit and a first current source unit, and the first The switch unit is connected to the first current source unit, the first transfer connector and the processing module, and the first current source unit is connected to the processing module; the processing module controls an on-off state of the first switch unit and controlling the first test electrical signal or the fourth test electrical signal output by the first current source unit, so that the first current source module outputs the first test electrical signal or the fourth test electrical signal. The cable detection device as described in claim 9, wherein each of the N second semi-conduction detection circuits includes a second voltage divider circuit, a second clamp protection circuit and A second comparator; one end of the second voltage dividing circuit is connected to a corresponding second current source module, the other end of the second voltage dividing circuit is connected to one end of the second clamping protection circuit, and the second A voltage dividing part of the voltage dividing circuit is connected to the second transfer connector; the other end of the second clamping protection circuit is connected to an input terminal of the second comparator, and the second clamping protection circuit is configured to limit A voltage at the input terminal; the second comparator is configured to compare the voltage at the input terminal with a preset voltage at another input terminal and then output a second comparison level to the processing module, so that the processing module is based on The second comparison level determines whether the semi-conducting self-test is normal. The cable detection device as described in claim 9, wherein each second detection module in the N second detection modules includes a second resistance voltage divider sampling circuit, a second short circuit/open circuit detection circuit and A second over-voltage and over-current protection circuit, wherein the second resistance voltage-dividing sampling circuit includes a load resistor and a sampling resistor connected in series, and one end of the load resistor is connected to the second transfer connector and the second short circuit/ One end of the open circuit detection circuit, the other end of the load resistor is connected to one end of the sampling resistor, the other end of the sampling resistor is grounded, and a voltage divider of the second resistor divider sampling circuit is connected to the second overvoltage and overcurrent protection circuit One end of the second short circuit/open circuit detection circuit and the other end of the second overvoltage and overcurrent protection circuit are connected to the processing module; the step (a) includes: Through the second short-circuit/open-circuit detection circuit, it is judged whether the end of the certain wire connected to the second transfer connector has a feedback electrical signal corresponding to the first test electrical signal, and if so, the straight-through test is normal, otherwise The pass-through test is abnormal; Through the second overvoltage and overcurrent protection circuit, it is judged whether an overvoltage and overcurrent occurs at the end of the certain wire connected to the second transfer connector. If it occurs, the overvoltage and overcurrent protection test is abnormal; otherwise, the overvoltage and overcurrent The overcurrent protection test is OK; and Through the second short-circuit/open-circuit detection circuit corresponding to other wires other than the certain wire, it is judged whether the end of the other wire connected to the second transfer connector has a response electrical signal, and if so, the short-circuit test is abnormal, Otherwise, the short circuit test is normal. The cable detection device according to claim 12, wherein each of the second short circuit/open circuit detection circuits includes a second sampling unit and a third comparator, one end of the second sampling unit is connected to one end of the load resistor , the other end of the second sampling unit is connected to an input end of the third comparator; the third comparator is configured to output a third comparison voltage after comparing a voltage at the input end with a preset voltage at the other input end to the processing module, so that the processing module judges whether the straight-through test or the other short-circuit test of the corresponding wire is normal based on the third comparison level. The cable detection device according to claim 12, wherein each of the second overvoltage and overcurrent protection circuits includes a second amplifier and a fourth comparator, and one end of the second amplifier is connected to the second resistor voltage divider At the voltage division of the sampling circuit, the other end of the second amplifier is connected to an input end of the fourth comparator; the fourth comparator is configured to compare a voltage at the input end with a preset voltage at the other input end Outputting a fourth comparison level to the processing module, so that the processing module judges whether the overvoltage and overcurrent protection test of the corresponding wire is normal based on the fourth comparison level. The cable detection device according to claim 9, wherein the step (c) includes: judging the certain wire through an electrical signal obtained by the second semi-conduction detection circuit connected to the second transfer connector Whether it is in a semi-conducting state, if so, the semi-conducting self-test is normal, otherwise, the semi-conducting self-test is abnormal. The cable detection device as described in claim 9, further comprising a swinging machine connected to the processing module; the processing module executes the step (a), the step (b), the step (c) and the step ( d), and at the same time, use the swing machine to swing the cable at different angles. The cable detection device as described in claim 9, further comprising a communication module, connected to the processing module, and configured to receive a test command from a host computer, so that the processing module starts based on the test command Execute the step (a); and transmit a test result of each conductor of the cable to the host computer. The cable detection device according to claim 9, further comprising a start button connected to the processing module and configured to generate a start signal after being pressed, so that the processing module starts to execute the step based on the start signal (a). The cable detection device as described in claim 9, further comprising a voice playback module, a display module and/or a light emitting module connected to the processing module; the voice playback module is configured to perform a voice error report ; The display module is configured to report a text error and display a test result of each conductor of the cable; the light emitting module is configured to report an error with a specific luminous color. The cable detection device according to claim 9, wherein when the processing module gives the error prompt, the cable detection device stops testing the cable.

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