A terminal sensor and sensing method for optical fiber sensing communication
An optical fiber sensing and sensor technology, which is applied to instruments, measuring devices, electrical components, etc., can solve the problems of high technical level requirements of construction personnel, high installation costs, and difficulty in obtaining power supplies, and achieves great technical application value and high waterproof level. , to avoid the effect of equipment investment costs
Active Publication Date: 2022-04-22
QUALSEN (GUANGZHOU) TECH CO LTD
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Problems solved by technology
Traditional sensors cannot be directly applied to the optical fiber, and the optical signal in the optical fiber is used to transmit the sensing information, and a host system needs to be established, and the construction is difficult, and the technical level of the construction personnel is high. At the same time, multi-position point active coupling The required power supply is difficult to obtain in underground, underwater or overhead scenarios, and the cost of cable or wireless network deployment is relatively high
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[0023] In the following description, in order to illustrate rather than to qualify, specific details such as specific system structures, techniques and the like are presented in order to thoroughly understand embodiments of the present invention. However, those skilled in the art should be clear that the present invention may also be implemented in other embodiments without these specific details. In other cases, a detailed description of the well-known system, apparatus, circuit, and method is omitted, so as not to hinder the description of the present invention in unnecessary details.
[0024] It should be understood that, when used in the present specification and the appended claims, the term "comprising" indicates the existence of the features described, whole, steps, operations, elements and / or components, but does not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.
[0025] It s...
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This application provides a terminal sensor and sensing method for optical fiber sensing communication, which converts the environmental information collected by the sensor placed on the object or place to be measured into a specific frequency pulse encoding method to perform vibration sensing on the optical fiber. , the optical signal in the optical fiber is vibrated by the terminal sensor, and when it acts on the optical fiber (such as changes in parameters such as temperature, humidity, etc.), the parameters of the optical fiber (such as refractive index, radius, etc.) are changed through changes in the optical signal. Then change the intensity, phase or polarization state of the input optical signal. In this way, the limitations of the workplace of traditional wireless sensors or wired sensors can be overcome, the information collected by the sensors can be effectively and timely fed back in different working environments, and the transmission efficiency of sensing data can be improved.
Description
Technical field [0001] The present invention relates to the technical field of optical fiber communication, and in particular to a terminal sensor and a sensing method for optical fiber sensing communication. Background technique [0002] Existing wireless sensors and wired sensors transmit sensor information through wireless electromagnetic waves or wired cables / optical cables, and this sensing information must rely on the sensing host. The sensing host links with the sensor to transmit the information returned by the sensor, such as temperature. , humidity, stress and other information for analytical analysis. Traditional sensors cannot directly act on optical fibers. The optical signals in optical fibers are used to transmit sensing information, and a host system needs to be established. The construction is difficult and requires high technical skills of construction personnel. At the same time, there is active coupling at multiple locations. The required power supply is...
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IPC IPC(8): H04Q9/00G01D21/02
CPCH04Q9/00G01D21/02
Inventor 李英乐陈雄颖蔡俊罗丁元刘德良谢金声刘振河
Owner QUALSEN (GUANGZHOU) TECH CO LTD