Temperature sensing identification optical cable

Abstract

The invention provides a temperature sensing identification optical cable, and relates to the technical field of optical cables. The temperature sensing identification optical cable comprises a protection piece, an optical cable unit and a temperature sensing optical fiber. The protection piece is internally provided with a first channel and a second channel which penetrate through the protection piece. The optical cable unit is arranged in the first channel, an electronic tag is arranged on the outer wall of the optical cable unit, and the electronic tag is used for recording information of the optical cable unit and can be in inductive communication connection with external radio frequency equipment; and the temperature sensing optical fiber is arranged in the second channel, is used for sensing the temperature change of the optical cable unit and is in communication connection with external temperature measuring equipment. The temperature sensing identification optical cable is simple in structure and can meet the use requirements for temperature sensing and identification in a special use environment.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cables, and in particular to a temperature sensing identification optical cable. Background Art

[0002] Fiber optic sensing technology is a new type of sensing technology that uses light as a carrier and optical fiber as a medium to sense and transmit external signals. The fiber optic sensors that have been successfully developed can monitor most physical quantities, including but not limited to strain, temperature, vibration, displacement, pressure, sound, flow, viscosity, light intensity, and other chemical, biomedical, current, and voltage parameters, and have been widely used in many fields. In some special use environments, such as subway corridors and computer rooms, it is necessary to conduct real-time temperature monitoring, precise positioning and identification of key equipment, valuables and other assets, that is, identity recognition. Although the existing non-differential optical cable achieves the effect of temperature sensing by directly setting the temperature-sensing optical fiber directly in the optical cable, it has a complex structure and high processing cost, and cannot meet the use requirements of temperature sensing and identification at the same time. Summary of the invention

[0003] The object of the present invention is to provide a temperature sensing identification optical cable, which has a simple structure and can meet the use requirements for temperature sensing and identification in special use environments.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Temperature sensing identification optical cable, including:

[0006] A protective member, wherein the protective member is provided with a first channel and a second channel penetrating the protective member;

[0007] An optical cable unit is arranged in the first channel, and an electronic tag is arranged on the outer wall of the optical cable unit, the electronic tag is used to record the information of the optical cable unit, and can be connected with an external radio frequency device by inductive communication;

[0008] The temperature-sensitive optical fiber is arranged in the second channel, and is used to sense the temperature change of the optical cable unit and communicate with an external temperature measuring device.

[0009] As a further technical solution, the inner wall of the first channel is provided with a containing cavity, and when the optical cable unit is arranged in the first channel, the electronic tag is located in the containing cavity.

[0010] As a further technical solution, along the length direction of the optical cable unit, a plurality of the electronic tags are evenly spaced on the outer wall of the optical cable unit, and the accommodating cavities are correspondingly arranged to the electronic tags.

[0011] As a further technical solution, the axis of the first channel and the axis of the second channel are parallel to each other.

[0012] As a further technical solution, the accommodating cavity is arranged on a side of the first channel away from the second channel.

[0013] As a further technical solution, the protective member is integrally injection molded.

[0014] As a further technical solution, the length of the optical cable unit is consistent with the length of the temperature-sensitive optical fiber.

[0015] As a further technical solution, a reinforcement member is arranged inside the optical cable unit.

[0016] As a further technical solution, the reinforcement member is configured as a non-metallic member.

[0017] As a further technical solution, the protective member is configured as a highly flame retardant member.

[0018] Compared with the prior art, the temperature sensing identification optical cable provided by the present invention has the following technical advantages:

[0019] Since the optical cable unit is arranged in the first channel, the temperature-sensing optical fiber is arranged in the second channel, and an electronic tag is arranged on the outer wall of the optical cable unit. Therefore, during the use of the temperature-sensing identification optical cable, the structure of the optical cable unit, the construction direction and other information are obtained through the inductive communication connection of the electronic tag through the external radio frequency equipment; with the help of the temperature-sensing optical fiber connected to the external temperature measuring equipment, the temperature of the optical cable unit and the installation environment of the optical cable unit can be monitored, thereby simultaneously meeting the use requirements of temperature sensing and identification in scenes such as iron pipe corridors and machine rooms. And the use requirements of temperature sensing and identification can be met with the help of protective parts, so the overall structure is simple, the operation is convenient, and the processing cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the structure of a temperature sensing identification optical cable provided by an embodiment of the present invention;

[0022] Figure 2 It is a cross-sectional view of a temperature sensing identification optical cable provided by an embodiment of the present invention.

[0023] In the figure:

[0024] 100, protective member; 101, accommodating cavity;

[0025] 200, optical cable unit; 201, electronic tag; 210, reinforcement member; 220, filling rope; 230, inner sheath; 240, loose tube; 260, optical fiber; 270, grease; 280, fiber grease;

[0026] 300, temperature-sensitive optical fiber; 310, metal braided mesh; 320, aramid fiber; 330, steel belt; 340, tight-buffered optical fiber. DETAILED DESCRIPTION

[0027] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0028] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0029] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0030] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediary, and indirect connection refers to two parts or components being connected to at least one intermediary respectively, and the two parts or components being connected via the intermediary. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0031] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0032] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0034] Specific combination Figure 1 and Figure 2 As shown, the temperature sensing identification optical cable provided in this embodiment has a simple structure and can meet the requirements for temperature sensing and identification in special use environments such as subway corridors and machine rooms. Specifically, the temperature sensing identification optical cable includes a protective member 100, an optical cable unit 200 and a temperature sensing optical fiber 300: the protective member 100 is provided with a first channel and a second channel penetrating the protective member 100; the optical cable unit 200 is arranged in the first channel, and an electronic tag 201 is arranged on the outer wall of the optical cable unit 200, and the electronic tag 201 is used to record the information of the optical cable unit 200, and can be connected to an external radio frequency device by induction communication; the temperature sensing optical fiber 300 is arranged in the second channel, and the temperature sensing optical fiber 300 is used to sense the temperature change of the optical cable unit 200, and communicate with an external temperature measuring device.

[0035] Since the optical cable unit 200 is arranged in the first channel, the temperature-sensing optical fiber 300 is arranged in the second channel, and an electronic tag 201 is arranged on the outer wall of the optical cable unit 200. Therefore, during the use of the temperature-sensing identification optical cable, the electronic tag 201 is inductively communicated and connected through an external radio frequency device to grasp the structure, construction direction and other information of the optical cable unit 200; with the help of the temperature-sensing optical fiber 300 that is communicated and connected with the external temperature measuring equipment, the temperature monitoring of the optical cable unit 200 and the installation environment of the optical cable unit 200 can be realized, thereby simultaneously meeting the use requirements of temperature sensing and identification in scenes such as iron pipe corridors and machine rooms. And the use requirements of temperature sensing and identification can be met with the help of the protective part 100, so the overall structure is simple, the operation is convenient, and the processing cost can be reduced.

[0036] At the same time, by combining the temperature-sensing optical fiber 300 and the electronic tag 201 with the optical cable unit 200, the temperature-sensing optical fiber 300 and the electronic tag 201 can share the same communication link with the optical cable unit 200. The temperature data of the temperature-sensing optical fiber 300 and the identification information of the electronic tag 201 can be transmitted to the monitoring center through the optical fiber core in the optical cable unit 200 or other communication means. In this way, not only the cost of laying a separate communication line is saved, but also the efficiency of data transmission can be improved.

[0037] Preferably, the inner wall of the first channel is provided with a receiving cavity 101, and when the optical cable unit 200 is arranged in the first channel, the electronic tag 201 is located in the receiving cavity 101. This arrangement can prevent the electronic tag 201 from being damaged due to the compression between the optical cable unit 200 and the inner wall of the second channel, so as to ensure the use effect of the electronic tag 201.

[0038] Preferably, along the length direction of the optical cable unit 200, a plurality of electronic tags 201 are evenly spaced on the outer wall of the optical cable unit 200, and the accommodating cavity 101 is correspondingly arranged with the electronic tags 201. Such arrangement enables the plurality of electronic tags 201 to store information of each area of ​​the optical cable unit 200 in a partitioned manner, which not only improves the accuracy of the identified information, but also improves the convenience of information identification.

[0039] Preferably, the axis of the first channel is parallel to the axis of the second channel, so as to ensure that the temperature-sensing optical fiber 300 and the optical cable unit 200 are always parallel to each other, so as to improve the accuracy of the temperature-sensing optical fiber 300 in sensing the temperature change of the optical cable unit 200.

[0040] Preferably, the accommodating cavity 101 is disposed on the side of the first channel away from the second channel. In this way, it is possible to avoid the situation where the gap between the temperature-sensitive optical fiber 300 and the optical cable unit 200 becomes larger due to the accommodating cavity 101 being disposed on the side of the first channel close to the second channel, thereby affecting the deviation when the temperature-sensitive optical fiber 300 senses the temperature change of the optical cable unit 200, thereby further improving the accuracy of temperature detection.

[0041] Preferably, the protective member 100 is integrally injection molded, which reduces the difficulty of processing and further improves its strength.

[0042] Preferably, the length of the optical cable unit 200 is consistent with the length of the temperature-sensitive optical fiber 300. This arrangement ensures that the temperature-sensitive optical fiber 300 can sense the temperature changes at every location of the optical cable unit 200, so as to further improve the temperature monitoring effect and detection accuracy of the optical cable unit 200 and the installation environment of the optical cable unit 200.

[0043] In order to improve the overall structural strength of the optical cable unit 200 , in this embodiment, a reinforcement member 210 is disposed inside the optical cable unit 200 .

[0044] Furthermore, the reinforcement member 210 is configured as a non-metallic member. In this way, while improving the overall structural strength of the optical cable unit 200, the reinforcement member 210 uses a non-metallic member with a relatively small density, which can also reduce the weight of the optical cable unit 200 and the temperature sensing identification optical cable. In this embodiment, the material of the reinforcement member 210 is a fiber-reinforced composite material with high strength, low weight, strong corrosion resistance and heat resistance, and high formability. In other embodiments, the material of the reinforcement member 210 can be adaptively set according to actual needs, but is not limited thereto.

[0045] Preferably, the protective member 100 is configured as a highly flame-retardant member. The highly flame-retardant member has good air tightness, impermeability and electrical insulation, and thus can play a role in fireproofing, waterproofing and protecting the temperature-sensing optical fiber 300 and the optical cable unit 200, so as to ensure the use effect of the temperature-sensing identification optical cable and extend its service life. In this embodiment, the material of the protective member 100 is a low-smoke, halogen-free, flame-retardant polyolefin sheath material, which not only has a good flame-retardant effect, but also does not produce toxic and harmful gases, does not cause pollution to the environment, is safe and environmentally friendly, and is heat-resistant and cold-resistant.

[0046] In the present embodiment, the optical cable unit 200 is composed of an inner sheath 230, a loose tube 240, a filling rope 220, a strength member 210, an optical fiber 260, a grease 270 and a fiber grease 280. The loose tube 240, the filling rope 220 and the strength member 210 are arranged at intervals inside the inner sheath 230, and the inner sheath 230 is filled with grease 270; a plurality of optical fibers 260 are arranged at intervals inside the loose tube 240, and the loose tube 240 is filled with fiber grease 280. The number of loose tubes 240 and the filling rope 220, and the number of optical fibers 260 in the same loose tube 240 are not specifically limited. The inner sheath 230 is made of low-smoke halogen-free flame-retardant polyolefin sheath material, the loose tube 240 is made of polybutylene terephthalate, and the filling rope 220 is made of semi-crystalline thermoplastic plastic; the grease 270 is a special grease for optical fiber. In order to improve the relevant performance, a small amount of antioxidant or other additives (such as preservatives, surfactants, hydrogen eliminators) are added to the grease 270, so that the grease 270 can buffer the influence of the optical cable unit 200 when the optical cable unit 200 is deformed by tension and bending, and play a waterproof effect; the fiber paste 280 is set as a water-blocking fiber paste. The temperature-sensitive optical fiber 300 includes a metal braided mesh 310, an aramid fiber 320, a steel belt 330 and a tight-wrapped optical fiber 340 that are set from the outside to the inside. The metal braided mesh 310 is formed by twisting a plurality of stainless steel wires to improve the tensile strength and bending performance of the temperature-sensing optical fiber 300; the aramid fiber 320 is configured as a full para-aramid fiber, the outer side of the tight-wrapped optical fiber 340 is wrapped with a PVC resin with high bonding strength to improve the fireproof and waterproof effect of the tight-wrapped optical fiber 340, and the steel belt 330 is configured as a double-sided coated steel-plastic composite belt. In other embodiments, the specific structure of the optical cable unit 200 and the temperature-sensing optical fiber 300 and the material of each structure can be adaptively adjusted according to actual needs.

[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Temperature sensing optical cable, characterized in that: include: A protective member (100), wherein the protective member (100) is provided with a first channel and a second channel penetrating the protective member (100); An optical cable unit (200) is arranged in the first channel, and an electronic tag (201) is arranged on the outer wall of the optical cable unit (200), wherein the electronic tag (201) is used to record information of the optical cable unit (200) and can be connected to an external radio frequency device by inductive communication; A temperature-sensitive optical fiber (300) is arranged in the second channel, and the temperature-sensitive optical fiber (300) is used to sense the temperature change of the optical cable unit (200) and is communicatively connected with an external temperature measuring device.

2. The temperature sensing identification optical cable according to claim 1, characterized in that: The inner wall of the first channel is provided with a receiving cavity (101); when the optical cable unit (200) is arranged in the first channel, the electronic tag (201) is located in the receiving cavity (101).

3. The temperature sensing identification optical cable according to claim 2, characterized in that: Along the length direction of the optical cable unit (200), a plurality of electronic tags (201) are evenly spaced apart on the outer wall of the optical cable unit (200), and the accommodating cavity (101) is arranged corresponding to the electronic tags (201).

4. The temperature sensing identification optical cable according to claim 2, characterized in that: The axis of the first channel and the axis of the second channel are parallel to each other.

5. The temperature sensing identification optical cable according to claim 4, characterized in that: The accommodating cavity (101) is arranged on a side of the first channel away from the second channel.

6. The temperature sensing identification optical cable according to claim 1, characterized in that: The protective member (100) is integrally formed by injection molding.

7. The temperature sensing identification optical cable according to claim 1, characterized in that: The length of the optical cable unit (200) is consistent with the length of the temperature-sensitive optical fiber (300).

8. The temperature sensing identification optical cable according to claim 1, characterized in that: A reinforcement member (210) is arranged inside the optical cable unit (200).

9. The temperature sensing identification optical cable according to claim 8, characterized in that: The reinforcement member (210) is configured as a non-metallic member.

10. The temperature sensing identification optical cable according to any one of claims 1 to 9, characterized in that: The protective member (100) is configured as a highly flame-retardant member.

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