A high bandwidth cat6-fiber optic hybrid communications cable system

Abstract

The application relates to the technical field of laser measuring instruments, in particular to a high-bandwidth CAT6-optical fiber composite communication cable system, which comprises a composite cable module, a test module and a control module; the composite cable module is used for forming a composite communication cable pair through a CAT6 network cable and an optical fiber cable to transmit communication signals; the test module is connected with the composite cable module and is used for testing the performance of the composite communication cable, and comprises a signal generator used for providing a test signal, a filter connected with the signal generator and used for filtering the test signal, and a temperature sensor arranged in a test area and used for detecting the temperature of the test area; the control module is connected with the composite cable module and the test module and is used for determining the bit error rate threshold of the optical fiber cable according to the average transmission delay duration of the test signal; and the application improves the test stability of the composite communication cable.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser measuring instruments, and in particular to a high-bandwidth CAT6-optical fiber composite communication cable system. BACKGROUND

[0002] In the prior art, a communication cable system has become a key infrastructure supporting emerging fields such as 5G, AI and industrial internet. The length of a CAT6A network cable channel is limited to 100 m, which is mainly suitable for large enterprise high-speed wiring. The transmission speed can reach 10 Gbps. The CAT6A network cable wiring performance is strictly required to be as high as 500 MHz of test frequency. A single-mode optical fiber is suitable for long-distance and high-speed data transmission and can realize transmission of tens of kilometers or even longer distances. A multi-mode optical fiber is more suitable for short-distance transmission, such as network connection in a building or a park. The cost is relatively low, and a relatively high data rate can be supported. The communication cable system is the core carrier of modern information infrastructure. Its technical evolution always revolves around three main lines of bandwidth improvement, transmission distance extension and anti-interference capability enhancement.

[0003] Chinese Patent Publication No. CN114270162A discloses an optical fiber cable sensing device, an optical fiber cable sensing method and a program. The purpose of the application is to provide an optical fiber cable sensing device capable of measuring the length direction distribution of curvature and torsion rate without using a special structure optical fiber sensor. The device comprises: a unit that inputs data of the length direction distribution of strain (bending loss, polarization fluctuation) measured by each optical fiber in the measured optical fiber cable and data representing the position of each optical fiber on the cable cross section as a measurement object; a unit that calculates the curvature vector K of the measured optical fiber cable at the same location according to the strain (bending loss, polarization fluctuation) of each optical fiber at the location and the position of the optical fiber on the cable cross section; and a unit that calculates the torsion rate Tau of the measured optical fiber cable at the location according to the calculated curvature vector K.

[0004] As can be seen, the prior art has the following problems: the actual position of each optical fiber on the cross section may deviate from the nominal position, resulting in inaccurate input of the optical fiber position data. The physical contact of the optical fiber with the copper cable or other reinforcing members may introduce additional strain, which interferes with the measurement of bending loss and polarization fluctuation, and the test stability of the composite communication cable is insufficient. SUMMARY

[0005] To this end, the present application provides a high-bandwidth CAT6-fiber composite communication cable system to overcome the problem that the actual position of each fiber in the cross-section may deviate from the nominal position, resulting in inaccurate input fiber position data, and the physical contact of the fiber with the copper cable or other reinforcing members may introduce additional strain, interfering with the measurement of the bending loss and polarization fluctuation, and leading to insufficient test stability of the composite communication cable.

[0006] To achieve the above-mentioned purpose, the present application provides a high-bandwidth CAT6-fiber composite communication cable system, comprising:

[0007] A composite cable module is used to form a composite communication cable pair for transmitting communication signals through a CAT6 network cable and a fiber cable, comprising a network transmission unit for providing a CAT6 network channel to transmit electrical signals in the communication signals, and a fiber transmission unit connected to the network transmission unit for providing a fiber channel to transmit optical signals in the communication signals.

[0008] A test module connected to the composite cable module is used to test the performance of the composite communication cable, comprising a signal generator for providing a test signal, a filter connected to the signal generator for filtering the test signal, and a temperature sensor arranged in a test area for detecting the temperature of the test area.

[0009] A control module connected to the composite cable module and the test module is used to determine the bit error rate threshold of the fiber cable according to the average transmission delay time of the test signal, or to determine the cutoff frequency of the filter according to the absolute error rate of the transmission rate of the composite communication cable, and to determine the duty cycle of the signal generator according to the temperature rise rate of the test area.

[0010] Further, the network transmission unit comprises:

[0011] Unshielded twisted pair wires are used to transmit communication signals in the form of electrical signals.

[0012] A cross-shaped skeleton connected to the unshielded twisted pair wires is used to separate each pair of unshielded twisted pair wires in different spatial regions.

[0013] An insulating layer connected to the unshielded twisted pair wires is used to prevent current leakage.

[0014] A sheath connected to the cross-shaped skeleton is used to resist external physical damage.

[0015] A tear rope connected to the sheath is used to strip the sheath during cable installation, termination and maintenance.

[0016] Further, the fiber transmission unit comprises:

[0017] an optical fiber connected to the sheath for transmitting an optical signal;

[0018] a steel wire strength member connected to the optical fiber for enhancing tensile strength against tensile stress.

[0019] Further, the control module is configured to determine whether the test stability of the composite communication cable meets the requirement according to the average transmission delay time length of the test signal, and if the average transmission delay time length of the test signal is greater than a preset first delay time length, it is determined that the test stability of the composite communication cable does not meet the requirement.

[0020] The control module is configured to preliminarily determine that the test accuracy of the composite communication cable does not meet the requirement when the average transmission delay time length of the test signal is greater than the preset first delay time length and less than or equal to a preset second delay time length, and determine whether the test accuracy of the composite communication cable meets the requirement according to the absolute error amount of the transmission rate of the composite communication cable.

[0021] Further, the control module is configured to increase the bit error rate threshold of the optical fiber cable when the average transmission delay time length of the test signal is greater than the preset second delay time length.

[0022] The increase range of the bit error rate threshold of the optical fiber cable is determined by the difference between the average transmission delay time length of the test signal and the preset second delay time length.

[0023] Further, the control module is configured to determine whether the test accuracy of the composite communication cable meets the requirement according to the absolute error amount of the transmission rate of the composite communication cable, and if the absolute error amount of the transmission rate of the composite communication cable is greater than a preset first error amount, it is determined that the test accuracy of the composite communication cable does not meet the requirement.

[0024] Further, the control module is configured to increase the cutoff frequency of the filter when the absolute error amount of the transmission rate of the composite communication cable is greater than the preset first error amount and less than a preset second error amount.

[0025] Further, the control module is configured to preliminarily determine that the test environment stability of the composite communication cable does not meet the requirement when the absolute error amount of the transmission rate of the composite communication cable is greater than or equal to the preset second error amount, and determine whether the test environment stability of the composite communication cable meets the requirement according to the temperature rise rate of the test area.

[0026] Further, the increase range of the cutoff frequency of the filter is determined by the difference between the absolute error amount of the transmission rate of the composite communication cable and the preset first error amount.

[0027] Further, the control module is used to determine whether the test environment stability of the composite communication cable meets the requirements according to the temperature rise rate of the test area, and if the temperature rise rate of the test area is greater than the preset rise rate, it is determined that the test environment stability of the composite communication cable does not meet the requirements, and the duty cycle of the signal generator is reduced.

[0028] The reduction range of the duty cycle of the signal generator is determined by the difference between the temperature rise rate of the test area and the preset rise rate.

[0029] Compared with the prior art, the system has the beneficial effects that the system sets the composite cable module, the test module and the control module, determines the error code rate threshold of the optical fiber cable according to the average transmission delay time of the test signal, and since the insulation layer may be damaged, such as cracks and breakage, after being connected with the connector due to manufacturing errors during installation, the insulation performance is reduced, resulting in signal leakage and crosstalk, by increasing the error code rate threshold of the optical fiber cable, the error code rate rise caused by the damage of the insulation layer can be tolerated to a certain extent, and the system is prevented from being too sensitive and unstable, the cutoff frequency of the filter is determined according to the absolute error amount of the transmission rate of the composite communication cable, since the cable certification tester will gradually age after long-term use, the performance is changed, and then the accuracy of the equipment is affected, by increasing the cutoff frequency of the filter, the filter allows higher frequency signals to pass through, which helps to compensate for the loss of high-frequency signal processing capability due to the aging of electronic components, and the signal containing high-frequency components can be more accurately obtained, thereby improving the measurement accuracy, and the duty cycle of the signal generator is determined according to the temperature rise rate of the test area, since the electronic components in the test equipment consume electric energy when working, part of the electric energy is converted into heat energy, the equipment generates heat, and the test environment temperature rises, by reducing the duty cycle of the signal generator, the continuous working time of the equipment can be reduced without affecting the test task, thereby reducing heat accumulation and reducing the amplitude of the test environment temperature rise caused by the heating of the equipment.

[0030] Further, the system sets the preset first delay time and the preset second delay time to determine the error code rate threshold of the optical fiber cable, since the insulation layer may be damaged, such as cracks and breakage, after being connected with the connector due to manufacturing errors during installation, the insulation performance is reduced, resulting in signal leakage and crosstalk, by increasing the error code rate threshold of the optical fiber cable, the error code rate rise caused by the damage of the insulation layer can be tolerated to a certain extent, and the system is prevented from being too sensitive and unstable, and the test stability of the composite communication cable is improved.

[0031] Furthermore, the system of the present invention determines the cutoff frequency of the filter by setting a preset first error amount and a preset second error amount. Since cable certification testers will gradually age after long-term use, resulting in changes in performance and affecting the accuracy of the equipment, by increasing the cutoff frequency of the filter, the filter can allow higher frequency signals to pass through, which helps to compensate for the loss of high-frequency signal processing capabilities due to the aging of electronic components. This allows for more accurate acquisition of signals containing high-frequency components, thereby improving measurement accuracy and further enhancing the testing stability of composite communication cables.

[0032] Furthermore, the system of the present invention determines the duty cycle of the signal generator by setting a preset rise rate. Since the electronic components in the test equipment consume electrical energy during operation, some of the electrical energy is converted into heat energy, causing the equipment to heat up and thus increasing the temperature of the test environment. By reducing the duty cycle of the signal generator, the continuous working time of the equipment can be reduced without affecting the test task, thereby reducing heat accumulation and reducing the magnitude of the temperature rise in the test environment caused by the equipment heating up, further improving the test stability of the composite communication cable. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the high-bandwidth CAT6-fiber optic composite communication cable system according to an embodiment of the present invention;

[0034] Figure 2 This is an overall structural block diagram of the high-bandwidth CAT6-fiber optic composite communication cable system according to an embodiment of the present invention;

[0035] Figure 3 This is a flowchart illustrating the process of determining the bit error rate threshold of an optical fiber cable in a high-bandwidth CAT6-optical fiber composite communication cable system according to an embodiment of the present invention.

[0036] Figure 4 This is a logic flowchart illustrating the process of determining the duty cycle of the signal generator in a high-bandwidth CAT6-fiber optic composite communication cable system according to an embodiment of the present invention.

[0037] The attached diagram is labeled as follows: 1-Unshielded twisted pair, 2-Cross frame, 3-Insulation layer, 4-Tear cord, 5-Sheath, 6-Steel wire reinforcer, 7-Fiber optic cable. Detailed Implementation

[0038] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0039] The preferred embodiments of the present application will be described below with reference to the drawings. Those skilled in the art will appreciate that the embodiments are only used to explain the technical principles of the present application, and are not intended to limit the scope of protection of the present application.

[0040] It should be noted that, in the description of the present application, the terms of direction or position relationship such as "upper", "lower", "left", "right", "inner", "outer" and the like are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, it should be further noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0042] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , which are respectively the overall structure schematic diagram, the overall structure block diagram, the logic flow chart of the process of determining the bit error rate threshold of the optical fiber cable, and the logic flow chart of the process of determining the duty cycle of the signal generator of the high-bandwidth CAT6-optical fiber composite communication cable system according to the embodiments of the present application. The high-bandwidth CAT6-optical fiber composite communication cable system according to the embodiments of the present application comprises:

[0043] The composite cable module is used to form a composite communication cable pair through the CAT6 network cable and the optical fiber cable to transmit the communication signal, which comprises a network cable transmission unit used to provide a CAT6 network cable channel to transmit the electrical signal in the communication signal, and an optical fiber transmission unit connected with the network cable transmission unit and used to provide an optical fiber channel to transmit the optical signal in the communication signal;

[0044] The test module is connected with the composite cable module and used to test the performance of the composite communication cable, which comprises a signal generator used to provide a test signal, a filter connected with the signal generator and used to filter the test signal, and a temperature sensor arranged in the test area and used to detect the temperature of the test area;

[0045] A control module connected with the composite cable module and the test module, configured to determine a bit error rate threshold of the optical fiber cable according to an average transmission delay duration of the test signal, or determine a cutoff frequency of the filter according to an absolute error rate of the transmission rate of the composite communication cable, and determine a duty cycle of the signal generator according to a temperature rise rate of the test area.

[0046] Specifically, the CAT6 network cable is a network cable with a bandwidth of 250 MHz.

[0047] Specifically, the optical fiber 7 cable is a G6572B6.a2 core.

[0048] Specifically, the electrical signal in the communication signal includes an Ethernet data electrical signal, a digital language data signal, and a device control signal, and the electrical signal is generally used in a short-distance, low-bandwidth scenario.

[0049] Specifically, the optical signal in the communication signal includes an Ethernet data optical signal, a high-definition video optical signal, and a wavelength division multiplexing optical signal, and the optical signal is generally used in a long-distance, high-bandwidth scenario.

[0050] Specifically, the filter includes a low-pass filter, a high-pass filter, and a band-pass filter, and a preferred embodiment thereof is a low-pass filter.

[0051] Specifically, the bit error rate threshold of the optical fiber cable refers to a critical value of a bit error rate specified to ensure communication quality and normal operation of the system.

[0052] Specifically, the network cable transmission unit includes:

[0053] Unshielded twisted pair wires configured to transmit the communication signal in the form of an electrical signal;

[0054] A cross-shaped skeleton connected with the unshielded twisted pair wires, configured to separate each pair of unshielded twisted pair wires in different spatial areas;

[0055] An insulation layer connected with the unshielded twisted pair wires, configured to prevent current leakage;

[0056] A sheath connected with the cross-shaped skeleton, configured to resist external physical damage;

[0057] A tear rope connected with the sheath, configured to strip the sheath during cable installation, termination, and maintenance.

[0058] Specifically, the optical fiber transmission unit includes:

[0059] An optical fiber connected with the sheath, configured to transmit an optical signal;

[0060] A steel wire strengthener connected with the optical fiber, configured to enhance tensile strength and resist tensile stress.

[0061] Specifically, the optical fiber 7 includes 0.45mm tensile steel wire.

[0062] Specifically, the sheath 5 is a white low-smoke halogen-free butterfly-shaped middle layer.

[0063] In the implementation, the system determines the bit error rate of the optical fiber 7 according to the average transmission delay time length of the test signal, tolerates the bit error rate rise caused by the damage of the insulation layer 3 to a certain extent by increasing the bit error rate threshold of the optical fiber 7 cable, avoids the instability of the system due to excessive sensitivity, determines the cutoff frequency of the filter according to the absolute error amount of the transmission rate of the composite communication cable, makes the filter allow higher frequency signals to pass through, helps to compensate for the loss of high-frequency signal processing capability due to the aging of electronic components, can more accurately obtain signals containing high-frequency components, thereby improving the measurement accuracy, and determines the duty cycle of the signal generator according to the temperature rise rate of the test area, reduces the continuous working time of the equipment without affecting the test task, thereby reducing heat accumulation and reducing the amplitude of the test environment temperature rise caused by equipment heating, and improves the test stability of the composite communication cable.

[0064] Specifically, the control module is configured to obtain the transmission delay time length of the test signal in a plurality of transmission periods, calculate the average transmission delay time length of the test signal, and determine that the test stability of the composite communication cable does not meet the requirements if the average transmission delay time length of the test signal is greater than a preset first delay time length.

[0065] The control module is configured to preliminarily determine that the test accuracy of the composite communication cable does not meet the requirements when the average transmission delay time length of the test signal is greater than the preset first delay time length and less than or equal to a preset second delay time length, and determine whether the test accuracy of the composite communication cable meets the requirements according to the absolute error amount of the transmission rate of the composite communication cable.

[0066] It can be understood that the three intervals divided by the preset first delay time length and the preset second delay time length correspond to three situations respectively.

[0067] The first interval is that the average transmission delay time of the test signal is less than or equal to the preset first delay time, and the corresponding case is that the test stability of the composite communication cable is determined to meet the requirements;

[0068] The second interval is that the average transmission delay time of the test signal is greater than the preset first delay time and less than or equal to the preset second delay time, and the corresponding case is that the cable certification tester gradually ages after long-time use, causing performance changes and affecting the accuracy of the equipment.

[0069] The third interval is that the average transmission delay time of the test signal is greater than the preset second delay time, and the corresponding case is that the insulation layer 3 is damaged, such as cracks or damage, after being connected with the connector due to preparation errors during the installation of the connector, causing the insulation performance to decrease and leading to signal leakage and crosstalk.

[0070] In implementation, the preset first delay time is generally selected in the range of [0.1 μs, 0.3 μs], and the preset second delay time is generally selected in the range of [0.4 μs, 0.6 μs].

[0071] Preferably, the preferred embodiment of the preset first delay time is 0.2 μs, and the preferred embodiment of the preset second delay time is 0.5 μs.

[0072] Specifically, the average transmission delay time of the test signal is the average time delay experienced by the signal in the transmission process from the sending end to the receiving end within a plurality of transmission periods.

[0073] Specifically, the control module is used to increase the bit error rate threshold of the optical fiber 7 when the average transmission delay time of the test signal is greater than the preset second delay time.

[0074] The increase amplitude of the bit error rate threshold of the optical fiber 7 is determined by the difference between the average transmission delay time of the test signal and the preset second delay time.

[0075] Specifically, when the difference between the average transmission delay time of the test signal and the preset second delay time is within 0.1 μs, the bit error rate threshold of the optical fiber 7 is increased to 1.1 times of the original value; when the difference between the average transmission delay time of the test signal and the preset second delay time exceeds 0.1 μs, the bit error rate threshold of the optical fiber 7 is increased by 10 -11 , for example, the difference between the average transmission delay time of the test signal and the preset second delay time is 0.3 μs, and the bit error rate threshold of the optical fiber 7 is 10 -10 , the increased bit error rate threshold of the optical fiber 7 is 10 -10 ×1.1+10 -11× 2 = 1.3 x 10 -10 .

[0076] In the implementation, the system determines the error code rate threshold of the optical fiber 7 by setting the preset first delay duration and the preset second delay duration. Since the insulation layer 3 can be damaged, such as cracking or breaking, when the connector is installed, the insulation performance of the insulation layer 3 is reduced, thereby causing signal leakage and crosstalk. By increasing the error code rate threshold of the optical fiber 7 cable, the increase in the error code rate caused by the damage to the insulation layer 3 can be tolerated to a certain extent, the system is prevented from being too sensitive and unstable, and the test stability of the composite communication cable is improved.

[0077] Specifically, the control module is configured to determine whether the test accuracy of the composite communication cable meets the requirements according to the absolute error amount of the transmission rate of the composite communication cable. If the absolute error amount of the transmission rate of the composite communication cable is greater than the preset first error amount, it is determined that the test accuracy of the composite communication cable does not meet the requirements.

[0078] Specifically, the control module is configured to increase the cutoff frequency of the filter when the absolute error amount of the transmission rate of the composite communication cable is greater than the preset first error amount and less than the preset second error amount.

[0079] Specifically, the control module is configured to preliminarily determine that the test environment stability of the composite communication cable does not meet the requirements when the absolute error amount of the transmission rate of the composite communication cable is greater than or equal to the preset second error amount, and determine whether the test environment stability of the composite communication cable meets the requirements according to the temperature rise rate of the test area.

[0080] It can be understood that the preset first error amount and the preset second error amount are divided into three intervals, which correspond to three situations respectively.

[0081] The first interval is that the absolute error amount of the transmission rate of the composite communication cable is less than or equal to the preset first error amount, which corresponds to the case that the test accuracy of the composite communication cable meets the requirements.

[0082] The second interval is that the absolute error amount of the transmission rate of the composite communication cable is greater than the preset first error amount and less than the preset second error amount, which corresponds to the case that the cable certification tester gradually ages after long-time use, thereby changing the performance and affecting the accuracy of the equipment.

[0083] The third interval is that the absolute error amount of the transmission rate of the composite communication cable is greater than or equal to the preset second error amount, which corresponds to the case that the electronic components in the test equipment consume electric energy when working, part of the electric energy is converted into heat energy, thereby causing the equipment to heat and the test environment temperature to rise.

[0084] In the implementation, the preset first error amount is generally selected in the range of [475 Mbps, 485 Mbps], and the preset second error amount is generally selected in the range of [486 Mbps, 496 Mbps].

[0085] Preferably, the preferred embodiment of the preset first error amount is 480 Mbps, and the preferred embodiment of the preset second error amount is 490 Mbps.

[0086] Specifically, the absolute error amount of the transmission rate of the composite communication cable refers to the difference between the actual data transmission rate and the target rate.

[0087] Specifically, the increase range of the cutoff frequency of the filter is determined by the difference between the absolute error amount of the transmission rate of the composite communication cable and the preset first error amount.

[0088] Specifically, when the difference between the absolute error amount of the transmission rate of the composite communication cable and the preset first error amount is within 5 Mbps, the cutoff frequency of the filter is increased to 1.2 times of the original, and when the difference between the absolute error amount of the transmission rate of the composite communication cable and the preset first error amount exceeds 5 Mbps, the cutoff frequency of the filter is increased by 5 MHz for every 2 Mbps in addition to the 1.2 times of the original, for example, when the difference between the absolute error amount of the transmission rate of the composite communication cable and the preset first error amount is 7 Mbps, and the current cutoff frequency of the filter is 30 MHz, the increased cutoff frequency of the filter is 30*1.2+5*1=41 MHz.

[0089] In the implementation, the system determines the cutoff frequency of the filter by setting the first error amount and the preset second error amount. Since the cable certification tester will gradually age after long-term use, the performance will change, thereby affecting the accuracy of the equipment. By increasing the cutoff frequency of the filter, the filter allows higher frequency signals to pass through, which helps to compensate for the loss of high-frequency signal processing capability due to the aging of electronic components, and can more accurately obtain signals containing high-frequency components, thereby improving the measurement accuracy and further improving the test stability of the composite communication cable.

[0090] Specifically, the control module is used to determine whether the test environment stability of the composite communication cable meets the requirements according to the temperature rise rate of the test area. If the temperature rise rate of the test area is greater than the preset rise rate, it is determined that the test environment stability of the composite communication cable does not meet the requirements, and the duty cycle of the signal generator is reduced.

[0091] The reduction range of the duty cycle of the signal generator is determined by the difference between the temperature rise rate of the test area and the preset rise rate.

[0092] It can be understood that the preset temperature rising rate is divided into two intervals, which correspond to two cases respectively.

[0093] The first interval is that the temperature rising rate of the test area is less than or equal to the preset temperature rising rate, which corresponds to the case that the test environment stability of the composite communication cable is determined to meet the requirements.

[0094] The second interval is that the temperature rising rate of the test area is greater than the preset temperature rising rate, which corresponds to the case that the electronic components in the test equipment consume electric energy when working, part of the electric energy is converted into heat energy, causing the equipment to heat up, thereby causing the temperature of the test environment to rise.

[0095] In implementation, the preset temperature rising rate is generally selected in the range of [1℃ / h, 5℃ / h].

[0096] Preferably, the preferred embodiment of the preset temperature rising rate is 3℃ / h.

[0097] Specifically, the temperature rising rate of the test area refers to the value of the temperature rise of the test area per unit time.

[0098] Specifically, when the difference between the temperature rising rate of the test area and the preset temperature rising rate is within 0.5℃ / h, the duty cycle of the signal generator is reduced to 0.9 times of the original, and when the difference between the temperature rising rate of the test area and the preset temperature rising rate exceeds 0.5℃ / h, the duty cycle of the signal generator is reduced by 2% for each 0.5℃ / h, for example, the difference between the temperature rising rate of the test area and the preset temperature rising rate is 2℃ / h, and the current duty cycle of the signal generator is 60%, after reduction, the duty cycle of the signal generator is 60x0.9-2x3=48%.

[0099] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without deviating from the principles of the present application, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical solutions after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A high-bandwidth CAT6-fiber optic composite communication cable system, characterized in that, The application relates to a composite cable module for transmitting communication signals through a composite communication cable pair formed by a CAT6 network cable and a fiber cable, which comprises a network cable transmission unit for transmitting electrical signals in the communication signals through a CAT6 network channel and a fiber transmission unit connected with the network cable transmission unit for transmitting optical signals in the communication signals through an optical fiber channel. A test module connected with the composite cable module is used for testing the performance of the composite communication cable, which comprises a signal generator for providing test signals, a filter connected with the signal generator for filtering the test signals and a temperature sensor arranged in a test area for detecting the temperature of the test area. A control module connected with the composite cable module and the test module is used for determining the bit error rate threshold of the fiber cable according to the average transmission delay time of the test signals, determining the cutoff frequency of the filter according to the absolute error rate of the transmission rate of the composite communication cable and determining the duty cycle of the signal generator according to the temperature rise rate of the test area. The control module is used for increasing the bit error rate threshold of the fiber cable when the average transmission delay time of the test signals is greater than a preset second delay time. The control module is used for increasing the cutoff frequency of the filter when the absolute error amount of the transmission rate of the composite communication cable is greater than a preset first error amount and smaller than a preset second error amount. The control module is used for determining whether the test environment stability of the composite communication cable meets the requirements according to the temperature rise rate of the test area, and the duty cycle of the signal generator is reduced when the temperature rise rate of the test area is greater than a preset rise rate. The network cable transmission unit comprises:

2. The high bandwidth CAT6-fiber optic hybrid communications cable system of claim 1, wherein, Unshielded twisted pair wires for transmitting the communication signals in the form of electrical signals. A cross-shaped framework connected with the unshielded twisted pair wires for separating each pair of unshielded twisted pair wires in different space areas. An insulation layer connected with the unshielded twisted pair wires for avoiding current leakage. A sheath connected with the cross-shaped framework for resisting external physical damage. A tear-off rope connected with the sheath for stripping the sheath during cable installation, termination and maintenance. The fiber transmission unit comprises:

3. The high bandwidth CAT6-fiber optic combination communication cable system of claim 2, wherein, An optical fiber connected with the sheath for transmitting optical signals. A steel wire strengthener connected with the optical fiber for enhancing the tensile strength and resisting tensile stress. The control module is used for determining whether the test stability of the composite communication cable meets the requirements according to the average transmission delay time of the test signals, and the test stability of the composite communication cable is determined as not meeting the requirements when the average transmission delay time of the test signals is greater than a preset first delay time.

4. The high bandwidth CAT6-fiber optic combination communication cable system of claim 3, wherein, The control module is used for preliminarily determining that the test accuracy of the composite communication cable does not meet the requirements when the average transmission delay time of the test signals is greater than the preset first delay time and smaller than or equal to a preset second delay time, and determining whether the test accuracy of the composite communication cable meets the requirements according to the absolute error amount of the transmission rate of the composite communication cable. ​ 5. The high bandwidth CAT6-fiber optic combination communication cable system of claim 4, wherein, The increase amplitude of the bit error rate threshold of the optical fiber cable is determined by a difference between an average transmission delay length of the test signal and a preset second delay length.

6. The high bandwidth CAT6-fiber optic combination communication cable system of claim 5, wherein, The control module is used to determine whether the test accuracy of the composite communication cable meets the requirement according to an absolute error amount of the transmission rate of the composite communication cable, and if the absolute error amount of the transmission rate of the composite communication cable is greater than a preset first error amount, it is determined that the test accuracy of the composite communication cable does not meet the requirement.

7. The high bandwidth CAT6-fiber optic combination communication cable system of claim 6, wherein, The control module is used to preliminarily determine that the test environment stability of the composite communication cable does not meet the requirement when the absolute error amount of the transmission rate of the composite communication cable is greater than or equal to the preset second error amount, and determine whether the test environment stability of the composite communication cable meets the requirement according to a temperature rising speed of the test area.

8. The high bandwidth CAT6-fiber optic combination communication cable system of claim 7, wherein, The increase amplitude of the cutoff frequency of the filter is determined by a difference between the absolute error amount of the transmission rate of the composite communication cable and the preset first error amount.

9. The high bandwidth CAT6-fiber optic combination communication cable system of claim 8, wherein, The decrease amplitude of the duty cycle of the signal generator is determined by a difference between the temperature rising speed of the test area and the preset rising speed.

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