Temperature sensing identification optical cable

Abstract

The utility model 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 utility model relates to the technical field of optical cable, especially to a temperature sensing identification optical cable. BACKGROUND

[0002] Optical fiber sensing technology is a new sensing technology that uses light as a carrier and optical fiber as a medium to perceive and transmit external signals. Currently developed optical fiber sensors can monitor most physical quantities, including but not limited to strain, temperature, vibration, displacement, pressure, sound, flow, viscosity, light intensity, and other chemical, biological, medical, and current and voltage parameters, and have been widely used in many fields. In some special use environments, such as subway pipe corridors and machine rooms, real-time temperature monitoring and accurate positioning identification, i.e. identity recognition, of key equipment, valuable items and other assets are required. Although the existing non-split optical cable achieves temperature sensing by directly setting temperature sensing optical fibers in the optical cable, the structure is complex, the processing cost is high, and it cannot meet the use requirements of temperature sensing and identification at the same time. SUMMARY

[0003] The utility model aims at providing a temperature sensing identification optical cable, which is simple in structure and can meet the use requirements of temperature sensing and identification in special use environments.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The temperature sensing identification optical cable comprises:

[0006] A protective member is provided with a first channel and a second channel penetrating through 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 inductively connected with an external radio frequency device for communication;

[0008] A temperature sensing optical fiber is arranged in the second channel, and the temperature sensing optical fiber is used to sense the temperature change of the optical cable unit and is in communication connection 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, a plurality of electronic tags are uniformly and intermittently arranged on the outer wall of the optical cable unit along the length direction of the optical cable unit, and the containing cavities and the electronic tags are correspondingly arranged.

[0011] As a further technical solution, the axis of the first channel is parallel to the axis of the second channel.

[0012] As a further technical solution, the accommodating cavity is arranged on the 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 sensing optical fiber.

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

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

[0017] As a further technical solution, the protective member is a high flame-retardant member.

[0018] Compared with the prior art, the temperature sensing and identifying optical cable 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 the electronic tag is arranged on the outer wall of the optical cable unit. Therefore, during use of the temperature sensing and identifying optical cable, the external radio frequency device and the electronic tag are inductively connected in communication to grasp information such as the structure of the optical cable unit and the construction trend; the temperature sensing optical fiber in communication with the external temperature measuring device can realize temperature monitoring of the optical cable unit and the installation environment of the optical cable unit, thereby meeting the use requirements of temperature sensing and identification in scenes such as the iron pipe gallery and the machine room. The protective member can meet the use requirements of temperature sensing and identification, so that the overall structure is simple, the operation is convenient, and the processing cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0021] Figure 1 is a structure diagram of the temperature sensing and identifying optical cable provided by the embodiments of the present application;

[0022] Figure 2 is a sectional view of the temperature sensing and identifying optical cable provided by the embodiments of the present application.

[0023] In the drawings:

[0024] 100, protector; 101, accommodating cavity;

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

[0026] 300, temperature sensing optical fiber; 310, metal braid; 320, aramid fiber; 330, steel tape; 340, tight buffer 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-described accompanying drawings.

[0028] In this application, the term "comprising" or "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0029] In this application, the term "and / or", is a description of an associated relationship between associated objects, which means that there can be three kinds of relationships. For example, A and / or B, can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this application generally represents a "and / or" relationship between the front and rear associated objects.

[0030] In this application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, for example, direct connection means that two parts or components are connected together without setting intermediate parts, indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0031] In this application, those of ordinary skill in the art will understand that the relative terms used in connection with a quantity or a condition (for example, "about", "approximately", "substantially" and the like) include the stated value and have the meaning indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, and the like related to a specific value. Such terms should also be considered to disclose the range defined by the absolute values of the two endpoints. The relative terms can refer to the addition or subtraction of a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to the addition or subtraction of a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0032] In this application, those of ordinary skill in the art will understand 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, a component, or a combination of multiple parts.

[0033] In this application, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the application. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, left below, right below, front below and back below, etc.

[0034] Specifically combined Figure 1 And Figure 2 As shown, the temperature sensing and identifying optical cable provided by the embodiment has a simple structure and can meet the use requirements of temperature sensing and identification in special use environments such as subway pipe corridors and machine rooms. Specifically, the temperature sensing and identifying optical cable comprises 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 through 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, the electronic tag 201 is used to record the information of the optical cable unit 200, and can be inductively connected with an external radio frequency device; 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 is in communication connection 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 the electronic tag 201 is arranged on the outer wall of the optical cable unit 200. Therefore, in the process of using the temperature sensing identification optical cable, the external radio frequency equipment is inductively connected with the electronic tag 201 to master the information such as the structure of the optical cable unit 200 and the construction trend; by means of the temperature sensing optical fiber 300 which is in communication connection with the external temperature measuring equipment, the temperature of the optical cable unit 200 and the installation environment of the optical cable unit 200 can be monitored, so as to simultaneously meet the use requirements of temperature sensing and identification in scenes such as the iron pipe gallery and the machine room. And the use requirements of temperature sensing and identification can be met by means of the protection piece 100, so the overall structure is simple, the operation is convenient, and the processing cost can be reduced.

[0036] At the same time, the combination of the temperature sensing optical fiber 300 and the electronic tag 201 with the optical cable unit 200 can make the temperature sensing optical fiber 300 and the electronic tag 201 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 separately laying a communication line is saved, but also the efficiency of data transmission is improved.

[0037] Preferably, the inner wall of the first channel is provided with a containing cavity 101, and when the optical cable unit 200 is arranged in the first channel, the electronic tag 201 is located in the containing cavity 101. In this way, damage of the electronic tag 201 due to extrusion of the optical cable unit 200 and the inner wall of the second channel is avoided, so as to ensure the use effect of the electronic tag 201.

[0038] Preferably, a plurality of electronic tags 201 are uniformly and spacedly arranged on the outer wall of the optical cable unit 200 along the length direction of the optical cable unit 200, and the containing cavities 101 are correspondingly arranged with the electronic tags 201. In this way, the partition storage of the information of each region of the optical cable unit 200 by the plurality of electronic tags 201 is realized, 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 and the axis of the second channel are parallel to each other. In this way, 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 containing cavity 101 is arranged on the side of the first channel away from the second channel. In this way, the gap between the temperature sensing optical fiber 300 and the optical cable unit 200 is not enlarged due to the arrangement of the containing cavity 101 on the side of the first channel close to the second channel, so as to avoid the deviation of the temperature sensing optical fiber 300 in sensing the temperature change of the optical cable unit 200, and further improve the accuracy of temperature detection.

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

[0042] Preferably, the length of the optical cable unit 200 is consistent with the length of the temperature sensing optical fiber 300. In this way, the temperature sensing optical fiber 300 can sense the temperature change of each part of the optical cable unit 200, which further improves 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, the optical cable unit 200 is internally provided with a reinforcing member 210 in the embodiment.

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

[0045] Preferably, the protector 100 is a high flame-retardant member. The high flame-retardant member has good air tightness, water tightness, and electrical insulation, which can prevent the temperature sensing optical fiber 300 and the optical cable unit 200 from fire, water, and protection, to ensure the use effect of the temperature sensing identification optical cable and prolong its service life. In the embodiment, the material of the protector 100 is a low-smoke halogen-free flame-retardant polyolefin sheath material, which not only has good flame-retardant effect, but also does not produce toxic and harmful gas, does not pollute the environment, is safe and environmentally friendly, and is heat and cold resistant.

[0046] In the embodiment, the optical cable unit 200 is composed of an inner sheath 230, a loose tube 240, a filling rope 220, a reinforcing member 210, an optical fiber 260, an oil paste 270 and a fiber paste 280. The loose tube 240, the filling rope 220 and the reinforcing member 210 are arranged in the inner sheath 230 in a spaced manner, and the inner sheath 230 is filled with the oil paste 270; the loose tube 240 is arranged with a plurality of optical fibers 260 in a spaced manner, and the loose tube 240 is filled with the fiber paste 280. The number of the loose tube 240 and the filling rope 220, and the number of the optical fiber 260 arranged in the same loose tube 240 are not specifically limited. The material of the inner sheath 230 is low-smoke halogen-free flame-retardant polyolefin sheath material, the material of the loose tube 240 is polybutylene terephthalate, and the material of the filling rope 220 is semi-crystalline thermoplastic plastic; the oil paste 270 is a special oil paste for optical fibers, in order to improve the performance, a small amount of antioxidant or other additives (such as preservatives, surfactants, hydrogen scavengers) are added in the oil paste 270, so that the oil paste 270 can buffer the influence of the optical cable unit 200 when the optical cable unit 200 is subjected to tension and bending deformation, and also has the effect of water isolation; the fiber paste 280 is arranged as a water-blocking fiber paste. The temperature sensing optical fiber 300 includes a metal woven mesh 310, an aramid fiber 320, a steel tape 330 and a tight-packed optical fiber 340 which are arranged in a nested manner from outside to inside. The metal woven mesh 310 is twisted by 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 arranged as a full-position aramid fiber, the tight-packed optical fiber 340 is wrapped with high-bonding-strength PVC resin on the outside to improve the fireproof and waterproof effect on the tight-packed optical fiber 340, and the steel tape 330 is arranged as a double-film-coated steel-plastic composite tape. In other embodiments, the specific structures of the optical cable unit 200 and the temperature sensing optical fiber 300 and the materials of the structures can be adaptively adjusted according to actual needs.

[0047] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the utility model claim.

Claims

1. A temperature-sensing optical cable, characterized in that, include: A protective element (100) having a first channel and a second channel penetrating the protective element (100); An optical fiber unit (200) is disposed in the first channel, and an electronic tag (201) is disposed on the outer wall of the optical fiber unit (200). The electronic tag (201) is used to record the information of the optical fiber unit (200) and can be connected to an external radio frequency device for sensing communication. A temperature-sensing optical fiber (300) is disposed in the second channel. 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.

2. The temperature-sensing 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 placed in the first channel, the electronic tag (201) is located in the receiving cavity (101).

3. The temperature-sensing optical cable according to claim 2, characterized in that, Along the length 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).

4. The temperature-sensing optical cable according to claim 2, characterized in that, The axis of the first channel is parallel to the axis of the second channel.

5. The temperature-sensing optical cable according to claim 4, characterized in that, The accommodating cavity (101) is located on the side of the first channel opposite to the second channel.

6. The temperature-sensing optical cable according to claim 1, characterized in that, The protective component (100) is integrally injection molded.

7. The temperature-sensing optical cable according to claim 1, characterized in that, The length of the optical cable unit (200) is the same as the length of the temperature-sensing optical fiber (300).

8. The temperature-sensing optical cable according to claim 1, characterized in that, The optical cable unit (200) is provided with a reinforcing member (210).

9. The temperature-sensing optical cable according to claim 8, characterized in that, The reinforcing member (210) is a non-metallic part.

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

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