High and wide temperature environment photoelectric rotation transmission system and method

Abstract

The invention discloses a photoelectric rotation transmission system and method in a high-wide-temperature environment, and belongs to the technical field of photoelectric transmission, and the system comprises a transmitting module which is used for transmitting a photoelectric signal. And the receiving module is used for receiving the photoelectric signals. And the feedback module is used for monitoring the temperature change of the transmission light path, the feedback module comprises an internal rotation unit and an external rotation unit, the transmitting module is connected with the internal rotation unit, and the receiving module is connected with the external rotation unit. The monitoring module is used for monitoring the wavelength change, initializing a calibration wavelength parameter in the monitoring module and recording the wavelength change parameter through the monitoring module, and the wavelength change parameter is the wavelength numerical value change within the set step length time; by arranging the internal rotation unit and the external rotation unit, the stability of photoelectric transmission is improved, and the adaptive capacity of the system to the environment is improved in combination with temperature monitoring changes.

Description

Technical Field

[0001] The present invention belongs to the field of photoelectric transmission, and in particular relates to a photoelectric rotation transmission system and method in a high-wide temperature environment. Background Art

[0002] In the fields of communications, data transmission, and optical detection, optoelectronic rotation transmission systems are crucial. However, traditional optoelectronic transmission systems have limitations in terms of temperature environments. In practical applications, especially in extreme or long-term operation scenarios, temperature changes have a significant impact. Temperature drift can cause many problems: First, it causes the refractive index of optical devices to change, affecting the transmission path and intensity of optical signals, causing signal attenuation, distortion, or even loss, affecting the accuracy and integrity of data transmission. Second, it causes the rotating parts to expand and contract due to heat and cold, changing the accuracy and stability of the rotating mechanism, and causing optical path alignment deviations. Third, it affects the parameters of electronic components, such as resistance and capacitance, and affects the accuracy of electrical signal processing and control.

[0003] Affected by temperature drift, traditional systems find it difficult to ensure stable, efficient and accurate transmission performance in a wide temperature environment, which limits their application and development. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a photoelectric rotation transmission system and method in a high wide temperature environment, including: a transmitting module for transmitting photoelectric signals.

[0005] The receiving module is used to receive the photoelectric signal.

[0006] The feedback module is used to monitor the temperature change of the transmission optical path. The feedback module includes an inner rotation unit and an outer rotation unit. The transmitting module is connected to the inner rotation unit, and the receiving module is connected to the outer rotation unit.

[0007] The monitoring module is used to monitor the wavelength change, initialize and calibrate the wavelength parameters in the monitoring module, and record the wavelength change parameters through the monitoring module. The wavelength change parameters are the wavelength value changes within a set step time; the wavelength change parameters are passed to the feedback module, and the compensation strategy is obtained in combination with the temperature changes monitored by the feedback module.

[0008] Furthermore, the monitoring module includes a filtering unit and a multi-channel monitoring unit, the filtering unit is used to filter out interference wavelength signals; the multi-channel monitoring unit is used to monitor multiple wavelength channels, set different initialization calibration wavelength parameters on each different wavelength channel, and modify the wavelength channel in use by modifying the wavelength channel number.

[0009] Further, the steps of obtaining the optical path compensation strategy through the feedback module and the monitoring module include setting a positive temperature upper limit value T_max, a negative temperature lower limit value T_min, and a temperature step size step, and determining the control output value through a step function; for the step function, when the current temperature T < T_min, , where represents rounding down, and k1 is the first control coefficient.

[0010] When the current temperature T > T_max, , where represents rounding up, and k2 is the second control coefficient.

[0011] The first control coefficient k1 and the second control coefficient k2 are used to adjust the control intensity; the temperature step size step is used to divide the degree of temperature deviation from the upper and lower limits; the mapping value of the angle adjustment is realized through the control output value f(T).

[0012] Further, a mapping table of the temperature control output value and the angle adjustment amount is set, and different intervals of the temperature control output value are corresponding to the corresponding angle adjustment amounts one by one; when the temperature control method generates an output value f(T), the corresponding angle adjustment amount is determined according to the mapping table; the mapping table is formulated based on the temperature characteristics of the transmission system, the angle control accuracy, and the physical properties of the inner rotation unit and the outer rotation unit.

[0013] The beneficial effects of the present invention compared with the prior art are: (1) The present invention can adjust the influence of temperature on the transmission optical path in the transmission system through the setting of the monitoring module and the feedback module, correct the drift change caused by temperature, and make the transmission more stable; (2) By setting the inner rotation unit and the outer rotation unit, the stability of the optoelectronic transmission is improved, and the system's adaptability to the environment is enhanced by combining the temperature monitoring change. Description of the Drawings

[0014] Figure 1 It is an exemplary block diagram of the module composition of the present invention. Detailed Embodiment

[0015] Embodiment: As Figure 1 shown, a high-width temperature environment optoelectronic rotary transmission system and method, characterized in that it includes: a transmitting module for transmitting optoelectronic signals.

[0016] A receiving module for receiving optoelectronic signals.

[0017] A feedback module for monitoring the temperature change of the transmission optical path. The feedback module includes an inner rotation unit and an outer rotation unit. The transmitting module is connected to the inner rotation unit, and the receiving module is connected to the outer rotation unit.

[0018] A monitoring module is used to monitor wavelength changes. Calibration wavelength parameters are initialized within the monitoring module, and wavelength change parameters are recorded by the monitoring module. The wavelength change parameters are the numerical changes in wavelength within a set step time. The wavelength change parameters are transmitted to a feedback module, and combined with the temperature changes monitored by the feedback module, a compensation strategy is obtained.

[0019] In this embodiment, the emission module consists of a high-performance semiconductor laser, and the light wavelength it emits is stable within a specific range. Before emission, the signal is preprocessed through a dedicated drive circuit, enhancing the intensity and stability of the emitted signal.

[0020] The receiving module uses a photodiode array with high quantum efficiency, combined with a low-noise amplifier, which can sensitively receive weak optical signals from afar. The inner rotation unit and outer rotation unit in the feedback module are driven by precise motors to monitor the temperature around the optical path in real time during the operation of the device.

[0021] The monitoring module includes a filtering unit and a multi-channel monitoring unit. The filtering unit is used to filter out interfering wavelength signals; the multi-channel monitoring unit is used to monitor multiple wavelength channels, and different initialization calibration wavelength parameters are set for each different wavelength channel. The used wavelength channel is modified by changing the wavelength channel number. The filtering unit uses a narrowband optical filter to effectively filter out stray wavelengths.

[0022] The steps to obtain the optical path compensation strategy through the feedback module and the monitoring module include Set the positive temperature upper limit value T_max, the negative temperature lower limit value T_min, and the temperature step size step, and determine the control output value through a step function; step function, when the current temperature T < T_min, , where represents rounding down, and k1 is the first control coefficient; when the current temperature T > T_max, , where represents rounding up, and k2 is the second control coefficient.

[0023] The first control coefficient k1 and the second control coefficient k2 are used to adjust the control intensity; the temperature step size step is used to divide the degree of temperature deviation from the upper and lower limits; the mapping value of angle adjustment is achieved through the control output value f(T).

[0024] In this embodiment, assume that the set positive temperature upper limit value T_max is 60 °C, the negative temperature lower limit value T_min is -20 °C, and the temperature step size step is 3 °C When the monitored current temperature T is -25 °C, . If the value of k1 is -0.3, then f(T) = 0.5.

[0025] When T is 65℃, . If k2 is 0.2, then f(T)=0.4.

[0026] A mapping table between temperature control output values ​​and angle adjustment amounts is set to correspond different intervals of temperature control output values ​​to corresponding angle adjustment amounts; when the temperature control method generates an output value f(T), the corresponding angle adjustment amount is determined according to the mapping table; the mapping table is formulated based on the temperature characteristics of the transmission system, the angle control accuracy, and the physical properties of the internal rotation unit and the external rotation unit.

[0027] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A high-temperature wide-range photoelectric rotation transmission system and method, characterized in that: include: A transmitting module, used for transmitting photoelectric signals; A receiving module, used for receiving photoelectric signals; A feedback module, used to monitor the temperature change of the transmission optical path, the feedback module includes an inner rotation unit and an outer rotation unit, the transmitting module is connected to the inner rotation unit, and the receiving module is connected to the outer rotation unit; The monitoring module is used to monitor the wavelength change, initialize and calibrate the wavelength parameters in the monitoring module, and record the wavelength change parameters through the monitoring module. The wavelength change parameters are the wavelength value changes within a set step time; the wavelength change parameters are passed to the feedback module, and the compensation strategy is obtained in combination with the temperature changes monitored by the feedback module.

2. The high-temperature and wide-range optoelectronic rotation transmission system and method according to claim 1, characterized in that: The monitoring module includes a filtering unit and a multi-channel monitoring unit. The filtering unit is used to filter out interfering wavelength signals; the multi-channel monitoring unit is used to monitor multiple wavelength channels, set different initialization calibration wavelength parameters on each different wavelength channel, and modify the wavelength channel in use by modifying the wavelength channel number.

3. The high-temperature and wide-range optoelectronic rotation transmission system and method according to claim 1, characterized in that: The steps of obtaining the optical path compensation strategy through the feedback module and the monitoring module include: Set the positive temperature upper limit value T_max, the negative temperature lower limit value T_min, the temperature step length step, and determine the control output value through the step function; For the step function, when the current temperature T < T_min, , where represents the floor function, and k1 is the first control coefficient; When the current temperature T>T_max, ,in It means rounding up, k2 is the second control coefficient; The first control coefficient k1 and the second control coefficient k2 are used to adjust the control intensity; the temperature step length step is used to divide the degree of temperature deviation from the upper and lower limits; The mapping value of the angle adjustment is realized by the control output value f(T).

4. The high-temperature wide-range optoelectronic rotation transmission system and method according to claim 3, characterized in that: A mapping table of temperature control output values ​​and angle adjustment amounts is set to correspond different intervals of temperature control output values ​​to corresponding angle adjustment amounts one by one; when the temperature control method generates an output value f(T), the corresponding angle adjustment amount is determined according to the mapping table; the mapping table is formulated based on the temperature characteristics of the transmission system, the angle control accuracy, and the physical properties of the internal rotation unit and the external rotation unit.

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