Crimping detection circuit applied to cable maintenance equipment and cable maintenance equipment

Abstract

The utility model relates to the technical field of cable maintenance equipment, and discloses a crimping detection circuit applied to cable maintenance equipment and the cable maintenance equipment, and the crimping detection circuit comprises a signal generation circuit and a signal conversion circuit which are electrically connected with a main control chip of the cable maintenance equipment. The signal generation circuit outputs a capacitance value to the signal conversion circuit according to the crimping condition of the crystal head of the accessed cable, the signal conversion circuit performs adjustment according to the received capacitance value to obtain a frequency pulse signal, and the main control chip determines the crimping condition of the crystal head of the accessed cable according to the frequency pulse signal. Therefore, the crimping detection function can be integrated in the existing cable maintenance equipment (such as hunting receiving equipment), so that the crimping detection of the cable can be realized while the basic maintenance operation (such as hunting operation) is performed on the cable, the convenience and efficiency of the crimping detection of the cable can be improved, and the reliability of the crimping detection of the cable can be improved. And therefore, the use experience of the user on the cable maintenance equipment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable maintenance equipment, in particular to a crimping detection circuit applied to cable maintenance equipment and the cable maintenance equipment. Background Art

[0002] At present, in order to facilitate maintenance personnel to maintain cables, cable maintenance equipment with different cable maintenance functions have appeared on the market, such as line finding equipment, line alignment equipment, line testing equipment, etc.

[0003] In actual applications, the crimping condition of the cable crystal head plays a vital role in the maintenance of the cable, and the relevant personnel are required to carry a crimping detection device to detect the crimping condition of the cable crystal head. If the relevant personnel do not carry a crimping detection device, the crimping condition of the cable crystal head cannot be detected in time, which is not conducive to improving the convenience and efficiency of detecting the crimping condition of the cable crystal head, and further not conducive to improving the convenience and efficiency of cable maintenance. Utility Model Content

[0004] The utility model provides a crimping detection circuit and cable maintenance equipment applied to cable maintenance equipment, which can improve the convenience and efficiency of detecting the crimping condition of cable crystal heads, thereby being conducive to improving the convenience and efficiency of cable maintenance.

[0005] In order to solve the above technical problems, the first aspect of the utility model discloses a crimping detection circuit applied to a cable maintenance device, the cable maintenance device includes a main control chip and a basic functional circuit, and the crimping detection circuit includes:

[0006] A signal generating circuit, wherein a control end of the signal generating circuit is electrically connected to a crimping control signal output end of the main control chip, and a crimping test channel of the signal generating circuit is electrically connected to a cable access port, and the cable access port is used for cable access;

[0007] A signal conversion circuit, wherein an input end of the signal conversion circuit is electrically connected to a signal output end of the signal generating circuit, and an output end of the signal conversion circuit is electrically connected to a crimping detection signal input end of the main control chip;

[0008] Among them, when crimping detection is required, the signal generating circuit is used to determine the target channel to be tested according to the crimping detection control signal output by the main control chip, collect the capacitance value corresponding to the target channel to be tested and output it to the signal conversion circuit; the signal conversion circuit is used to perform signal conversion operation on the capacitance value to obtain a pulse frequency signal matching the capacitance value, and output the pulse frequency signal to the main control chip, and the pulse frequency signal is used for the main control chip to determine the crimping condition of the crystal head of the cable connected to the cable access port.

[0009] As an optional implementation, in the first aspect of the utility model, the crimping detection circuit further includes:

[0010] A crimping condition output circuit, wherein an input end of the crimping condition output circuit is electrically connected to a crimping detection result output end of the main control chip;

[0011] Wherein, the crimping condition output circuit is used to output corresponding indication information according to the crimping detection result provided by the main control chip.

[0012] As an optional implementation, in the first aspect of the utility model, the cable maintenance device includes a line-finding receiving device, and the basic functional circuit includes:

[0013] A line-finding signal receiving circuit, one end of which is used to receive a line-finding signal sent by a matching line-finding transmitting device, and the other end of which is electrically connected to a line-finding signal input end of the main control chip;

[0014] A line-finding result output circuit, wherein a control end of the line-finding result output circuit is electrically connected to a line-finding result output end of the main control chip;

[0015] A power supply circuit, wherein the power supply output end of the power supply circuit is electrically connected to the power supply end of the main control chip, and the power supply circuit is used to supply power to the cable maintenance device.

[0016] As an optional implementation, in the first aspect of the utility model, the signal conversion circuit includes: an inverter and a feedback circuit;

[0017] Among them, the input end of the inverter is electrically connected to the signal output end of the signal generating circuit, the output end of the inverter is electrically connected to one end of the feedback circuit and the crimping detection signal input end of the main control chip, the power supply end of the inverter is used to electrically connect to the power supply, and the ground end of the inverter is used for grounding; the other end of the feedback circuit is electrically connected to the input end of the inverter.

[0018] As an optional implementation, in the first aspect of the utility model, the signal conversion circuit further includes an output protection circuit, wherein:

[0019] One end of the output protection circuit is electrically connected to the output end of the inverter, and the other end of the output protection circuit is electrically connected to the pressure connection detection signal input end of the main control chip;

[0020] and / or,

[0021] The signal conversion circuit also includes an AC filter circuit, wherein:

[0022] One end of the AC filter circuit is electrically connected to the power supply end of the inverter, and the other end of the AC filter circuit is grounded.

[0023] As an optional implementation, in the first aspect of the utility model, the crimping condition output circuit includes one or more indicator lights;

[0024] When the crimping condition output circuit includes an indicator light, the indicator light is used to display the indication information corresponding to the crimping detection result of the current channel to be tested, or the indicator light is used to sequentially display the indication information corresponding to the crimping detection result of each channel to be tested;

[0025] When the crimping condition output circuit includes a plurality of the indicator lights, each crimping test channel of the signal generating circuit has a corresponding indicator light.

[0026] As an optional implementation, in the first aspect of the utility model, the crimping detection circuit further includes an access protection circuit corresponding to each of the crimping test channels;

[0027] Among them, for any of the crimping test channels, one end of the access protection circuit corresponding to the crimping test channel is used to electrically connect the access port in the cable access port corresponding to the crimping test channel, and the other end of the corresponding access protection circuit is electrically connected to the crimping test channel, and the corresponding access protection circuit is a crimping detection protection resistor.

[0028] The second aspect of the utility model discloses a cable maintenance device, the cable maintenance device (10) comprising a main control chip, a basic functional circuit and the crimping detection circuit described in any one of the first aspect of the utility model.

[0029] As an optional implementation, in the first aspect of the utility model, the cable maintenance device includes a line-finding receiving device, and the basic functional circuit includes:

[0030] A line-finding signal receiving circuit, one end of which is used to receive a line-finding signal sent by a matching line-finding transmitting device, and the other end of which is electrically connected to a line-finding signal input end of the main control chip;

[0031] A line-finding result output circuit, wherein a control end of the line-finding result output circuit is electrically connected to a line-finding result output end of the main control chip;

[0032] A power supply circuit, wherein the power supply output end of the power supply circuit is electrically connected to the power supply end of the main control chip, and the power supply circuit is used to supply power to the cable maintenance device.

[0033] As an optional implementation, in the first aspect of the utility model, the cable maintenance device further includes an optical fiber fault detection circuit, the optical fiber fault detection circuit includes an optical fiber detection signal output circuit and an optical fiber detection power supply circuit, wherein:

[0034] The output end of the optical fiber detection power supply circuit is electrically connected to the power supply end of the optical fiber detection signal output circuit, the control end of the optical fiber detection signal output circuit is electrically connected to the optical fiber detection control end of the main control chip, and the output end of the optical fiber detection signal output circuit is used to output a fault detection signal to the optical fiber to be detected for fault, and the fault detection signal is an optical signal.

[0035] The implementation of this utility model has the following beneficial effects:

[0036] The crimping detection circuit for cable maintenance equipment disclosed by the utility model includes: a signal generating circuit and a signal conversion circuit electrically connected to the main control chip of the cable maintenance equipment, the signal generating circuit outputs a capacitance value to the signal conversion circuit according to the crimping condition of the crystal plug of the connected cable, the signal conversion circuit adjusts the received capacitance value to obtain a frequency pulse signal, and the main control chip determines the crimping condition of the crystal plug of the connected cable according to the frequency pulse signal. It can be seen that the utility model can integrate the crimping detection function in the existing cable maintenance equipment (such as the line search receiving equipment), so that the crimping detection of the cable can be realized while performing basic maintenance operations (such as line search operations) on the cable, which is conducive to improving the convenience and efficiency of the cable crimping detection, thereby improving the convenience and efficiency of the cable maintenance, and can also improve the user experience of the cable maintenance equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 It is a structural schematic diagram of a cable maintenance device disclosed in an embodiment of the utility model;

[0039] Figure 2 It is a structural schematic diagram of another cable maintenance device disclosed in an embodiment of the utility model;

[0040] Figure 3 It is a structural schematic diagram of a crimping detection circuit integrated in a cable maintenance device disclosed in an embodiment of the utility model;

[0041] Figure 4It is a structural schematic diagram of a crimping condition output circuit in a crimping detection circuit disclosed in an embodiment of the utility model;

[0042] Figure 5 It is a structural schematic diagram of a main control chip of a line-finding receiving device with an integrated crimping detection function disclosed in an embodiment of the utility model;

[0043] Figure 6 It is a structural schematic diagram of a line-finding signal receiving circuit of a line-finding receiving device integrated with a crimping detection function disclosed in an embodiment of the utility model;

[0044] Figure 7 It is a structural schematic diagram of a line-finding result output circuit of a line-finding receiving device integrated with a crimping detection function disclosed in an embodiment of the utility model;

[0045] Figure 8 The utility model discloses a schematic diagram of a power supply circuit of a line-finding receiving device integrated with a crimping detection function. DETAILED DESCRIPTION

[0046] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that, unless otherwise clearly specified and limited, the term "electrical connection" in the specification and claims of the utility model and the above-mentioned drawings should be understood in a broad sense. For example, it can be a fixed electrical connection, a detachable electrical connection or an integrated electrical connection; it can be a mechanical electrical connection or a mutual communication connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. In addition, the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. The terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0048] The utility model discloses a crimping detection circuit and a cable maintenance device applied to a cable maintenance device, which can integrate a crimping detection function in an existing cable maintenance device (such as a line-finding receiving device), so that the crimping detection of the cable can be realized while performing basic maintenance operations (such as line-finding operations) on the cable, which is conducive to improving the convenience and efficiency of the crimping detection of the cable, thereby improving the convenience and efficiency of the maintenance of the cable, and can also improve the user's experience of the cable maintenance device. The following is a detailed description.

[0049] Embodiment 1

[0050] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of a cable maintenance device disclosed in an embodiment of the utility model. Figure 1 The cable maintenance device 10 shown includes at least a main control chip 101 and a basic function circuit 102. The basic function circuit 102 is used to implement the basic function of the cable maintenance device 10. The basic function can also be understood as an existing function of the cable maintenance device 10. For example, when the cable maintenance device 10 is a line-finding device, the basic function circuit 102 is used to implement the line-finding function. More specifically, when the cable maintenance device 10 is a line-finding receiving device, the basic function circuit 102 is used to implement the line-finding signal receiving function and the line-finding result output function. Furthermore, the cable maintenance device 10 also includes a crimping detection circuit 103. Figure 1 As shown, the crimping detection circuit 103 integrated in the cable maintenance device 10 may include:

[0051] A signal generating circuit 1031, wherein the control end of the signal generating circuit 1031 is electrically connected to the crimping control signal output end of the main control chip 101, and the crimping test channel of the signal generating circuit 1031 is electrically connected to the cable access port, and the cable access port is used for cable access, and it can be specifically an RJ45 port, or an RJ11 port, or other ports for accessing a cable crystal plug;

[0052] The signal conversion circuit 1032 has an input end electrically connected to a signal output end of the signal generating circuit 1031 , and an output end of the signal conversion circuit 1032 electrically connected to a crimping detection signal input end of the main control chip 101 .

[0053] in, Figure 1 The implementation principle of crimping detection by the cable maintenance device 10 shown is:

[0054] When crimping detection is required, the signal generating circuit 1031 is used to determine the target channel to be tested according to the crimping detection control signal output by the main control chip 101, collect the capacitance value corresponding to the target channel to be tested and output it to the signal conversion circuit 1032;

[0055] The signal conversion circuit 1032 is used to perform signal conversion operations on the capacitance value to obtain a pulse frequency signal that matches the capacitance value, and output the pulse frequency signal to the main control chip 101. The pulse frequency signal is used for the main control chip 101 to determine the crimping condition of the crystal head of the cable connected to the cable access port.

[0056] In the embodiment of the utility model, the signal generating circuit 1031 has a plurality of channels, and each channel is electrically connected to each port of the cable access port in sequence. After the aforementioned channels are electrically connected to the aforementioned ports, since each channel has an internal resistance value, there is an initial capacitance value between the connection line of each channel and each port and the ground, and the signal conversion circuit 1032 can generate a stable frequency signal according to the initial capacitance value. In practical applications, if the crystal plug of the cable is crimped, when the cable access port has the crystal plug of the cable connected, it is equivalent to the cable access port being connected to a metal wire, and the capacitance value between the connection line of each channel and each port and the ground will increase compared to the initial capacitance value. The signal conversion circuit 1032 generates a different frequency signal according to the changed capacitance value and when the cable crystal plug is not plugged in. The main control chip 101 can identify whether the crimping condition of the crystal plug of the cable is good according to the different frequency signals generated when the cable crystal plug is not inserted and the cable crystal plug is inserted. Furthermore, after the main control chip 101 determines the crimping condition of the crystal head of the connected cable, a corresponding level control signal can be generated. The generated level control signal can be output to the existing general indication device of the cable maintenance equipment 10, or to a special indication device newly added to the cable maintenance equipment 10, or to an external indication device that can communicate with the cable maintenance equipment 10, so that the corresponding indication device can intuitively output the crimping condition detection results to relevant personnel.

[0057] It should be particularly noted that the crimping detection circuit 103 involved in this embodiment and subsequent embodiments can be used as a separate embodiment, that is, the crimping detection circuit 103 can be used as an independent functional module circuit. When it is necessary to integrate it into a cable maintenance device 10, the corresponding end can be electrically connected to the main control chip 101 of the cable maintenance device 10.

[0058] It can be seen that implementation Figure 1 The described cable maintenance device 10 can integrate a crimping detection function into an existing cable maintenance device (such as a line finding receiving device), so that while performing basic maintenance operations (such as line finding operations) on the cable, it can also perform crimping detection on the cable, which is beneficial to improving the convenience and efficiency of cable crimping detection, thereby improving the convenience and efficiency of cable maintenance, and can also improve the user experience of the cable maintenance device.

[0059] In an optional embodiment, if Figure 2 As shown, the crimping detection circuit 103 may further include:

[0060] The crimping condition output circuit 1033 has an input terminal electrically connected to the crimping detection result output terminal of the main control chip 101. The crimping condition output circuit 1033 is used to output corresponding indication information according to the crimping detection result provided by the main control chip 101.

[0061] It can be seen that this optional embodiment can also integrate the crimping status output circuit 1033 in the crimping detection circuit 103, expanding the indication function of the crimping detection circuit 103, which is beneficial to improving the indication efficiency and convenience of the crimping detection results, and further beneficial to improving the efficiency and convenience of relevant personnel in obtaining the crimping detection results.

[0062] In another optional embodiment, the cable maintenance device 10 may be a line-finding receiving device, that is, the crimping detection circuit 103 is integrated into a line-finding receiving device (also called a "line-finding receiver" or a "line-finding auxiliary device") of a line-finding device (also called a "line-finding instrument"). Figure 2 As shown, the basic functional circuit 102 may include:

[0063] A line-finding signal receiving circuit 1021, one end of which is used to receive a line-finding signal sent by a matching line-finding transmitting device, and the other end of which is electrically connected to a line-finding signal input end of the main control chip 101;

[0064] A line search result output circuit 1022, wherein a control end of the line search result output circuit 1022 is electrically connected to a line search result output end of the main control chip 101. Further optionally, the line search result output circuit 1022 may be an audio output circuit;

[0065] The power supply circuit 1023 has a power supply output terminal electrically connected to a power supply terminal of the main control chip 101 . The power supply circuit 1023 is used to supply power to the cable maintenance device 10 .

[0066] It can be seen that this optional embodiment can integrate the crimping detection circuit 103 on the line-finding receiving device, realizing the compatibility of the crimping detection function and the line-finding function, and the crimping detection function and the line-finding function do not affect each other. In addition, the crimping detection can be realized by connecting the cable to the corresponding interface without switching or selecting the function, which further improves the convenience and efficiency of crimping detection using the line-finding receiving device integrated with the crimping detection circuit 103.

[0067] In yet another optional embodiment, Figure 2As shown, the signal conversion circuit 1032 may include an inverter 10321 and a feedback circuit 10322, wherein:

[0068] The input end of the inverter 10321 is electrically connected to the signal output end of the signal generating circuit 1031, the output end of the inverter 10321 is electrically connected to one end of the feedback circuit 10322 and the crimping detection signal input end of the main control chip 101, the power supply end of the inverter 10321 is used to electrically connect to the power supply, and the ground end of the inverter 10321 is used for grounding; the other end of the feedback circuit 10322 is electrically connected to the input end of the inverter 10321.

[0069] In this optional embodiment, the signal output end of the signal generating circuit 1031 outputs an analog signal corresponding to the current capacitance value of the channel to be measured. After the analog signal is output to the signal conversion circuit 1032, a frequency pulse signal corresponding to the aforementioned analog signal is generated under the joint action of the inverter 10321 and the feedback circuit 10322. In this way, analog-to-digital conversion is realized based on the inverter 10321 and the feedback circuit 10322 to convert the analog signal into a frequency pulse signal that can be recognized and judged by the main control chip 101, which is beneficial to ensure the reliability and accuracy of crimping detection based on the main control chip of the line finding receiving device after the crimping detection circuit 103 is integrated on the line finding receiving device.

[0070] In yet another optional embodiment, Figure 2 As shown, the signal conversion circuit 1032 further includes an output protection circuit 10323, wherein:

[0071] One end of the output protection circuit 10323 is electrically connected to the output end of the inverter 10321, and the other end of the output protection circuit 10323 is electrically connected to the pressure connection detection signal input end of the main control chip 101;

[0072] and / or,

[0073] The signal conversion circuit 1032 further includes an AC filter circuit 10324 , one end of the AC filter circuit 10324 is electrically connected to the power supply end of the inverter 10321 , and the other end of the AC filter circuit 10324 is grounded.

[0074] It can be seen that this optional embodiment can not only reduce the impact of the pulse frequency signal output by the inverter 10321 on the main control chip 101 through the output protection circuit 10323, but also improve the stability of the power supply for the signal conversion circuit 1032 by setting an AC filter circuit 10324 at the power supply end of the signal conversion circuit 1032, which is beneficial to improve the stability and reliability of the signal conversion of the signal conversion circuit 1032.

[0075] In yet another optional embodiment, Figure 2 As shown, the crimping detection circuit 103 also includes an access protection circuit 1034 corresponding to each crimping test channel. For any crimping test channel, one end of the access protection circuit 1034 corresponding to the crimping test channel is used to electrically connect to the access port corresponding to the crimping test channel in the cable access port, and the other end of the corresponding access protection circuit 1034 is electrically connected to the crimping test channel. It can be seen that the way of setting the access protection circuit 1034 between the access port and the crimping test channel can reduce the occurrence of abnormalities in the cable access port or the crimping test channel due to cable access.

[0076] In yet another optional embodiment, the crimping condition output circuit 1033 may include one or more indicator lights 10331. Wherein:

[0077] When the crimping status output circuit 1033 includes an indicator light 10331, the indicator light 10331 is used to display the indication information corresponding to the crimping detection result of the current channel to be tested, or the indicator light 10331 is used to display the indication information corresponding to the crimping detection result of each channel to be tested in turn; when the crimping status output circuit 1033 includes multiple indicator lights 10331, each crimping test channel of the signal generating circuit 1031 has a corresponding indicator light 10331.

[0078] Further optionally, the crimping status output circuit 1033 may also include an indication protection circuit 10332 corresponding to the indicator light 10331 .

[0079] It can be seen that this optional embodiment can intuitively output the crimping detection results through the indicator light 10331, and can also protect the indicator light through the indication protection circuit 10332, which is beneficial to saving the cost required to output the crimping detection results, and can also reduce the probability of the indicator light 10331 being damaged, thereby improving its safety.

[0080] In yet another optional embodiment, Figure 2 As shown, the cable maintenance device 10 further includes an optical fiber fault detection circuit 104, and the optical fiber fault detection circuit 104 includes an optical fiber detection signal output circuit 1041 and an optical fiber detection power supply circuit 1042, wherein:

[0081] The output end of the optical fiber detection power supply circuit 1042 is electrically connected to the power supply end of the optical fiber detection signal output circuit 1041, and the control end of the optical fiber detection signal output circuit 1041 is electrically connected to the optical fiber detection control end of the main control chip 101. The output end of the optical fiber detection signal output circuit 1041 is used to output a fault detection signal to the optical fiber to be detected for fault. The fault detection signal is an optical signal, which can specifically be red light. Red light has the advantages of long transmission distance, strong penetration and visibility to the naked eye.

[0082] Further optionally, the optical fiber detection signal output circuit 1041 may include a red light head capable of emitting red light, and may further include a control chip for adjusting the duty cycle of the red light output.

[0083] It can be seen that in this optional embodiment, the optical fault detection function can be further integrated on the cable maintenance device 10 with the integrated crimping detection circuit 103. The relevant maintenance personnel can determine whether there is a fault in the optical fiber by observing the red light transmitted by the optical fiber, and can further determine the fault point when a fault exists, which provides convenience for optical fiber maintenance personnel to maintain the optical fiber.

[0084] In another optional embodiment, the specific circuit structure of the crimping detection circuit 103 can be as follows: Figure 3 As shown, Figure 3 Schematic diagram of a crimping detection circuit integrated in a cable maintenance device disclosed in an embodiment of the utility model. Figure 3 As shown, the signal generating circuit 1031 may include U1, which is specifically an 8-channel multiplexer RS2251, Figure 3 Pins 1, 2, 4, 5 and 12-15 of U1 are used as crimping test channels, pins 9-11 of U1 are used as control terminals of the signal generating circuit 1031 (which can also be understood as control terminals of the channels to be tested), and pin 3 of U1 is used as the signal output terminal of the signal generating circuit 1031; the inverter 10321 of the signal conversion circuit 1032 can correspond to Figure 3 In U2, pin 2 of U2 is used as the input end of the signal conversion circuit 1032, pin 4 of U2 is used as the output end of the signal conversion circuit 1032, pin 3 of U2 is used as the ground end, pin 5 of U2 is used as the power end, and the feedback circuit 10322 may include a first resistor R1, the output protection circuit 10323 may include a second resistor R2, and the AC filter circuit 10324 may include a first capacitor C1. It should be particularly noted that in actual applications, the main control chip 101 can output a pulse square wave signal or a high and low level signal to pins 9-11 of U1, and U1 determines the current channel to be tested based on the correspondence between the pre-stored pulse square wave signal / high and low level signal and the crimping test channel.

[0085] Further, such as Figure 3 As shown, J1 is used as a cable access port, and the access protection circuit 1034 corresponding to each crimping test channel may include a third resistor, Figure 3 The access protection circuits 1034 corresponding to the 8 crimping test channels correspond to Figure 3 R30-R37 in.

[0086] In another optional embodiment, one structure of the crimping condition output circuit 1033 can be as follows: Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of a crimping condition output circuit in a crimping detection circuit disclosed in an embodiment of the utility model. Figure 4 As shown, the crimping condition output circuit 1033 includes LED lights (D00-D07) corresponding to each crimping test channel, and the indication protection circuit 10332 corresponding to the indicator light 10331 may include indication protection resistors R40-R47. It should be particularly noted that: when each crimping test channel corresponds to an LED light, the main control chip 101 can cyclically capture the frequency of each crimping test channel and display the crimping detection result through the LED lights (D00-D07).

[0087] In another optional embodiment, for the line-finding receiving device, the electronic components included in the main control chip 101, the connection relationship between the electronic components included therein, and the connection relationship between the included electronic components and other circuit structures are specifically referred to in Figure 5 , Figure 5 1 is a schematic diagram of the structure of a main control chip of a line-finding receiving device with an integrated crimping detection function disclosed in an embodiment of the utility model; the electronic components included in the line-finding signal receiving circuit 1021, the connection relationship between the electronic components included therein, and the connection relationship between the electronic components included therein and other circuit structures are specifically referred to Figure 6 , Figure 6 1 is a schematic diagram of the structure of a line-finding signal receiving circuit of a line-finding receiving device with an integrated crimping detection function disclosed in an embodiment of the utility model; the electronic components included in the line-finding result output circuit 1022, the connection relationship between the electronic components included therein, and the connection relationship between the electronic components included therein and other circuit structures are specifically referred to Figure 7 , Figure 7 1 is a schematic diagram of a line search result output circuit of a line search receiving device with an integrated crimping detection function disclosed in an embodiment of the utility model; the electronic components included in the power supply circuit 1023, the connection relationship between the electronic components included therein, and the connection relationship between the electronic components included therein and other circuit structures are specifically referred to Figure 8 , Figure 8 The utility model discloses a schematic diagram of a power supply circuit of a line-finding receiving device integrated with a crimping detection function.

[0088] It can be seen that the cable maintenance device 10 described in the above embodiment can quickly and accurately realize crimping detection without switching modes or selecting functions. The crimping detection function can be started after powering on and the crimping detection result can be intuitively indicated by the indicator light. In addition, the crimping detection function does not affect other functions of the cable maintenance device 10. While expanding the functions of the cable maintenance device 10, it improves the convenience and efficiency of crimping detection, thereby improving the convenience and efficiency of cable maintenance, and can also improve the user experience of the cable maintenance device.

[0089] The above is a detailed introduction to a crimping detection circuit and a cable maintenance device applied to a cable maintenance device disclosed in an embodiment of the utility model. The principle and implementation method of the utility model are explained in this article using a specific embodiment, but the above preferred embodiment is not used to limit the utility model. The description of the above embodiment is only used to help understand the method of the utility model and its core idea; at the same time, for a general technician in this field, based on the idea of ​​the utility model, without departing from the spirit and scope of the utility model, there will be changes in the specific implementation method and application scope. Therefore, the protection scope of the utility model shall be based on the scope defined by the claims.

Claims

1. A crimping detection circuit for cable maintenance equipment, characterized in that: The cable maintenance device (10) comprises a main control chip (101) and a basic functional circuit (102), and the crimping detection circuit (103) comprises: A signal generating circuit (1031), wherein a control end of the signal generating circuit (1031) is electrically connected to a crimping control signal output end of the main control chip (101), and a crimping test channel of the signal generating circuit (1031) is electrically connected to a cable access port, and the cable access port is used for cable access; A signal conversion circuit (1032), wherein an input end of the signal conversion circuit (1032) is electrically connected to a signal output end of the signal generation circuit (1031), and an output end of the signal conversion circuit (1032) is electrically connected to a crimping detection signal input end of the main control chip (101); Wherein, when crimping detection is required, the signal generating circuit (1031) is used to determine the target channel to be tested according to the crimping detection control signal output by the main control chip (101), collect the capacitance value corresponding to the target channel to be tested and output it to the signal conversion circuit (1032); the signal conversion circuit (1032) is used to perform a signal conversion operation on the capacitance value to obtain a pulse frequency signal matching the capacitance value, and output the pulse frequency signal to the main control chip (101), and the pulse frequency signal is used for the main control chip (101) to determine the crimping condition of the crystal plug of the cable connected to the cable access port.

2. The crimping detection circuit for cable maintenance equipment according to claim 1, characterized in that: The crimping detection circuit (103) further comprises: A crimping condition output circuit (1033), wherein an input end of the crimping condition output circuit (1033) is electrically connected to a crimping detection result output end of the main control chip (101); The crimping condition output circuit (1033) is used to output corresponding indication information according to the crimping detection result provided by the main control chip (101).

3. The crimping detection circuit for cable maintenance equipment according to claim 2, characterized in that: The cable maintenance device (10) comprises a line-finding receiving device, and the basic function circuit (102) comprises: A line-finding signal receiving circuit (1021), one end of the line-finding signal receiving circuit (1021) being used to receive a line-finding signal sent by a matching line-finding transmitting device, and the other end of the line-finding signal receiving circuit (1021) being electrically connected to a line-finding signal input end of the main control chip (101); A line search result output circuit (1022), wherein a control end of the line search result output circuit (1022) is electrically connected to a line search result output end of the main control chip (101); A power supply circuit (1023), wherein a power supply output end of the power supply circuit (1023) is electrically connected to a power supply end of the main control chip (101), and the power supply circuit (1023) is used to supply power to the cable maintenance device (10).

4. The crimping detection circuit for cable maintenance equipment according to claim 3, characterized in that: The signal conversion circuit (1032) comprises: an inverter (10321) and a feedback circuit (10322); The input end of the inverter (10321) is electrically connected to the signal output end of the signal generating circuit (1031); the output end of the inverter (10321) is electrically connected to one end of the feedback circuit (10322) and the crimping detection signal input end of the main control chip (101); the power supply end of the inverter (10321) is used to electrically connect to a power supply; the grounding end of the inverter (10321) is used to be grounded; and the other end of the feedback circuit (10322) is electrically connected to the input end of the inverter (10321).

5. The crimping detection circuit for cable maintenance equipment according to claim 4, characterized in that: The signal conversion circuit (1032) further comprises an output protection circuit (10323), wherein: One end of the output protection circuit (10323) is electrically connected to the output end of the inverter (10321), and the other end of the output protection circuit (10323) is electrically connected to the pressure connection detection signal input end of the main control chip (101); and / or, The signal conversion circuit (1032) further comprises an AC filter circuit (10324), wherein: One end of the AC filter circuit (10324) is electrically connected to the power supply end of the inverter (10321), and the other end of the AC filter circuit (10324) is used for grounding.

6. The crimping detection circuit for cable maintenance equipment according to claim 5, characterized in that: The crimping condition output circuit (1033) includes one or more indicator lights (10331); When the crimping condition output circuit (1033) includes an indicator light (10331), the indicator light (10331) is used to display the indication information corresponding to the crimping detection result of the current channel to be tested, or the indicator light (10331) is used to sequentially display the indication information corresponding to the crimping detection result of each channel to be tested; When the crimping condition output circuit (1033) includes a plurality of indicator lights (10331), each crimping test channel of the signal generating circuit (1031) has a corresponding indicator light (10331).

7. The crimping detection circuit for cable maintenance equipment according to claim 3, characterized in that: The crimping detection circuit (103) further comprises an access protection circuit (1034) corresponding to each crimping test channel; Among them, for any of the crimping test channels, one end of the access protection circuit (1034) corresponding to the crimping test channel is used to electrically connect the access port in the cable access port corresponding to the crimping test channel, and the other end of the corresponding access protection circuit (1034) is electrically connected to the crimping test channel, and the corresponding access protection circuit (1034) is a crimping detection protection resistor.

8. A cable maintenance device, characterized in that: The cable maintenance device (10) comprises a main control chip (101), a basic functional circuit (102), and a crimping detection circuit (103) as claimed in any one of claims 1 to 7.

9. The cable maintenance device according to claim 8, characterized in that: The cable maintenance device (10) comprises a line-finding receiving device, and the basic function circuit (102) comprises: A line-finding signal receiving circuit (1021), one end of the line-finding signal receiving circuit (1021) being used to receive a line-finding signal sent by a matching line-finding transmitting device, and the other end of the line-finding signal receiving circuit (1021) being electrically connected to a line-finding signal input end of the main control chip (101); A line search result output circuit (1022), wherein a control end of the line search result output circuit (1022) is electrically connected to a line search result output end of the main control chip (101); A power supply circuit (1023), wherein a power supply output end of the power supply circuit (1023) is electrically connected to a power supply end of the main control chip (101), and the power supply circuit (1023) is used to supply power to the cable maintenance device (10).

10. The cable maintenance device according to claim 8 or 9, characterized in that: The cable maintenance device (10) further comprises an optical fiber fault detection circuit (104), wherein the optical fiber fault detection circuit (104) comprises an optical fiber detection signal output circuit (1041) and an optical fiber detection power supply circuit (1042), wherein: The output end of the optical fiber detection power supply circuit (1042) is electrically connected to the power supply end of the optical fiber detection signal output circuit (1041), the control end of the optical fiber detection signal output circuit (1041) is electrically connected to the optical fiber detection control end of the main control chip (101), and the output end of the optical fiber detection signal output circuit (1041) is used to output a fault detection signal to the optical fiber to be fault-detected, wherein the fault detection signal is an optical signal.

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