Temperature measurement method, device, system, computer equipment and storage medium

Abstract

The present application relates to a temperature measurement method, device, system, computer equipment and storage medium. The method includes: obtaining the initial optical signal of each channel generated by the optical fiber sensor in the measured environment; obtaining preset configuration data, and judging the initial optical signal of each channel based on the configuration data, and generating each judgment result corresponding to each channel; adjusting the light source power of the multi-channel light source according to each judgment result; when it is determined that the initial optical signal of each channel meets the requirements of the configuration data, collecting the optical signal of each channel according to the adjusted light source power, and determining the ambient temperature of the measured environment based on the collected optical signals of each channel. The use of this method can improve the accuracy of temperature detection.

Description

Technical Field

[0001] The present application relates to the field of optical fiber sensing technology, and in particular to a temperature measurement method, device, system, computer equipment, and storage medium. Background Art

[0002] Fiber-optic sensing technology has gradually become one of the most representative emerging technologies in the sensing field due to its advantages, such as passive sensing medium, corrosion resistance, resistance to electromagnetic interference, and long service life. Among them, the fiber-optic fluorescence temperature measurement system is a new type of temperature sensing system based on fiber-optic technology, suitable for temperature measurement in harsh environments with strong electromagnetic interference, high temperature, corrosion, high pressure, and explosion hazards. The fiber-optic fluorescence temperature measurement system couples the light signal emitted by a light-emitting diode (LED) light source into the sensing fiber and uses a fluorescent material attached to the end face of the sensing fiber to perform temperature sensing. When the LED light source is turned off, the fluorescent material will continue to emit light for a period of time. The fluorescence signal received by the photoelectric conversion module exhibits an exponential decay curve, and the exponential decay lifetime is a single-valued function of temperature. Therefore, by detecting the lifetime of the fluorescence signal, temperature sensing can be achieved.

[0003] In traditional methods, a multi-channel fiber optic fluorescence temperature measurement system is usually used for temperature detection. That is, a multi-channel design is adopted. Through the controller inside the fiber optic fluorescence temperature measurement system, the fluorescence signal attenuation curve of a certain channel is completely collected in a serial working mode, and then the next channel is switched to collect, so as to collect multi-channel signals and realize temperature sensing.

[0004] However, due to the limitations of the fluorescent probe manufacturing process, it is impossible to ensure that the initial amplitudes of the fluorescent signals returned by the sensing optical fibers of each channel are equal, which affects the accuracy of subsequent temperature adjustment, that is, the accuracy of temperature measurement. Summary of the Invention

[0005] Based on this, it is necessary to provide a temperature measurement method, device, system, computer equipment and storage medium that can improve the accuracy of temperature measurement in response to the above technical problems.

[0006] A temperature measurement method, comprising:

[0007] Obtaining the initial optical signals of each channel generated by the optical fiber sensor in the measured environment;

[0008] Obtaining preset configuration data, and judging the initial optical signal of each channel based on the configuration data, and generating each judgment result corresponding to each channel;

[0009] According to each determination result, the light source power of the multi-channel light source is adjusted;

[0010] When it is determined that the initial optical signals of each channel meet the requirements of the configuration data, the optical signals of each channel are collected according to the adjusted light source power, and the ambient temperature of the measured environment is determined based on the collected optical signals of each channel.

[0011] In one embodiment, obtaining initial optical signals of each channel generated by the optical fiber sensor in the measured environment includes:

[0012] Acquire an initial optical signal of each channel generated by the optical fiber sensor in the measured environment;

[0013] According to the adjusted light source power, collect the optical signals of each channel, including:

[0014] According to the adjusted light source power, multiple optical signals corresponding to each channel are collected to obtain the channel optical signals corresponding to each channel.

[0015] In one embodiment, determining the initial optical signal of each channel based on the configuration data and generating respective determination results corresponding to each channel include:

[0016] Perform data conversion on the initial optical signal of each channel to generate the corresponding initial digital signal;

[0017] Based on the configuration data, the initial digital signal corresponding to each channel is judged to generate a corresponding judgment result.

[0018] In one embodiment, the configuration data includes a signal threshold and a signal difference threshold interval;

[0019] Based on the configuration data, the initial digital signal corresponding to each channel is judged and the corresponding judgment result is generated, including:

[0020] determining each signal difference between each initial digital signal and a signal threshold;

[0021] Based on the signal difference threshold interval, each signal difference is judged and a corresponding judgment result is generated.

[0022] In one embodiment, the determination result includes a first determination result that the signal difference is less than a signal difference threshold interval, a second determination result that the signal difference is greater than the signal difference threshold interval, and a third determination result that the signal difference is within the signal difference threshold interval;

[0023] According to each determination result, the light source power of the multi-channel light source is adjusted, including:

[0024] According to the first determination result, the light source power of the corresponding channel in the multi-channel light source is increased;

[0025] According to the second determination result, lowering the light source power of the corresponding channel in the multi-channel light source;

[0026] According to the third determination result, it is determined that the light source power of the corresponding channel in the multi-channel light source is not adjusted.

[0027] In one embodiment, obtaining the initial optical signal of each channel generated by the optical fiber sensor in the measured environment includes:

[0028] The light sources of each channel of the multi-channel light source in the measured environment are controlled to emit light and shut down synchronously, and the optical fiber sensor receives the light signal of each channel light source and generates the initial light signal corresponding to each channel.

[0029] A temperature measuring device, comprising:

[0030] A data acquisition module is used to obtain the initial optical signals of each channel generated by the optical fiber sensor in the measured environment;

[0031] A signal determination module, configured to obtain preset configuration data, and determine the initial optical signal of each channel based on the configuration data, and generate determination results corresponding to each channel;

[0032] A light source power adjustment module is used to adjust the light source power of the multi-channel light source according to each determination result;

[0033] The full data acquisition and temperature measurement module is used to collect the optical signals of each channel according to the adjusted light source power when it is determined that the initial optical signals of each channel meet the requirements of the configuration data, and determine the ambient temperature of the measured environment based on the collected optical signals of each channel.

[0034] A temperature measurement system includes: a controller, a light emitting device, and an optical fiber sensor, wherein the light emitting device and the optical fiber sensor are respectively coupled to the controller;

[0035] The light emitting device is used to provide a multi-channel light source in the environment under test;

[0036] The optical fiber sensor is used to receive the optical signal generated by the light emitting device and generate a feedback optical signal for temperature measurement;

[0037] The controller implements the steps of the method described in any of the above embodiments when measuring the ambient temperature of the measured environment.

[0038] A computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method described in any one of the above embodiments when executing the computer program.

[0039] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method described in any one of the above embodiments.

[0040] The above-mentioned temperature measurement method, device, system, computer equipment and storage medium obtain the initial optical signal of each channel of the multi-channel light source generated by the optical fiber sensor in the measured environment, obtain preset configuration data, and judge the initial optical signal of each channel based on the configuration data to generate each judgment result corresponding to each channel. Then, according to each judgment result, the light source power of the multi-channel light source is adjusted. When it is determined that the initial optical signal of each channel meets the requirements of the configuration data, the light signal of each channel is collected according to the adjusted light source power, and the ambient temperature of the measured environment is determined based on the collected light signals of each channel. Therefore, before performing temperature measurement, the initial optical signal of each channel of the multi-channel light source can be obtained, and the initial optical signal of each channel can be judged and the light source power can be adjusted so that the initial amplitude of the optical signal generated by the adjusted multi-channel light source can be kept consistent, thereby reducing the difference in the initial amplitude of the optical signal of each channel and improving the consistency of the initial amplitude of the optical signal of each channel, thereby improving the accuracy of subsequent temperature detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is an application scenario diagram of a temperature measurement method in one embodiment;

[0042] Figure 2 1 is a flow chart of a temperature measurement method according to an embodiment;

[0043] Figure 3 1 is a flow chart of a light source power adjustment step in one embodiment;

[0044] Figure 4 is a schematic diagram of a lifetime curve of a fluorescence signal in one embodiment;

[0045] Figure 5 is a structural block diagram of a temperature measurement system in one embodiment;

[0046] Figure 6 is a structural block diagram of a temperature measurement system in another embodiment;

[0047] Figure 7 is a structural block diagram of a temperature measuring device in one embodiment;

[0048] Figure 8 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0050] The temperature measurement method provided in this application can be applied to Figure 1 In the application environment shown, terminal 102 communicates with server 104 via a network. Server 104 provides terminal 102 with an environment for implementing the temperature measurement method. Terminal 102 installs this environment and implements temperature measurement within this environment. Specifically, server 104 can obtain initial optical signals from each channel of a multi-channel light source generated by a fiber optic sensor in the measured environment and convert these initial optical signals into digital signals. Furthermore, server 104 can obtain preset configuration data and, based on the configuration data, determine the initial optical signals of each channel, generating determination results corresponding to each channel. Furthermore, server 104 can adjust the light source power of the multi-channel light source based on the determination results. Furthermore, upon determining that the initial optical signals of each channel meet the requirements of the configuration data, server 104 can collect optical signals from each channel according to the adjusted light source power and determine the ambient temperature of the measured environment based on the collected optical signals from each channel. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablet computers, and portable wearable devices. Server 104 can be implemented as a standalone server or a server cluster consisting of multiple servers.

[0051] In one embodiment, Figure 2 As shown, a temperature measurement method is provided, which is applied to Figure 1 Taking the server 104 in the example as an example, the following steps are included:

[0052] Step 202: Acquire initial optical signals of each channel generated by the optical fiber sensor in the measured environment.

[0053] The measured environment refers to an environment where temperature measurement is performed. A multi-channel light source and an optical fiber sensor may be provided in the measured environment so that the ambient temperature can be determined based on the optical signal generated by the optical fiber sensor.

[0054] Multi-channel refers to multiple optical output channels on the same fluorescence sensing system hardware circuit, such as a multi-channel light source with multiple light source output channels, for example, there can be 16 channels.

[0055] In this embodiment, the initial optical signal of each channel refers to the optical signal of each channel generated by the optical fiber sensor after the multi-channel light source is turned on and off, such as the fluorescence signal generated by the optical fiber fluorescence probe after being excited by the incident light generated by the LED light source.

[0056] In this embodiment, each channel may correspond to an LED light source, and each channel is connected to a sensing optical fiber.

[0057] Step 204 : Acquire preset configuration data, and determine the initial optical signal of each channel based on the configuration data to generate determination results corresponding to each channel.

[0058] The preset configuration data refers to parameters used to detect and determine the consistency of the initial amplitude of the optical fiber sensor, and may include but is not limited to a signal threshold, a signal difference threshold interval, and the like.

[0059] Specifically, in industrial production, due to the density of phosphor particles in different probes, the distribution on the end face of the optical fiber, the inconsistency of the material itself, and human operation, the optical fiber fluorescence probes of the optical fiber sensor will be inconsistent, resulting in inconsistent values ​​of the first optical signal generated for temperature measurement after receiving the incident light from the LED light source, that is, inconsistent initial amplitudes.

[0060] In this embodiment, the server may pre-set configuration data and use it to determine the consistency of the initial amplitudes of the initial channel optical signals, and generate corresponding determination results.

[0061] Step 206: Adjust the light source power of the multi-channel light source according to each determination result.

[0062] In this embodiment, the server may pre-set an adjustment amount for adjusting the light source power, and then adjust the light source power of the multi-channel light source differently based on different determination results. For example, the adjustment amount may be set to a preset adjustment power value ΔP.

[0063] In this embodiment, the preset adjustment power value ΔP may be any value within the interval [5 mW, 10 mW], and this application does not impose any limitation on this.

[0064] In this embodiment, the power of the light source directly affects the optical signal generated by the light source sensor, namely, its initial amplitude. Based on the determination results, the server can adjust the light source power corresponding to each channel of the multi-channel light source to ensure the consistency of the initial amplitude of the optical signal in each initial channel.

[0065] Step 208 : When it is determined that the initial optical signals of each channel meet the requirements of the configuration data, the optical signals of each channel are collected according to the adjusted light source power, and the ambient temperature of the measured environment is determined based on the collected optical signals of each channel.

[0066] In this embodiment, when the server completes the determination of the initial optical signals of all channels and determines that the initial optical signals of each channel meet the requirements of the configuration data, the server can collect the optical signals of each channel of the multi-channel light source again according to the adjusted light source power and detect the ambient temperature.

[0067] In this embodiment, for the same channel, the server may collect multiple signals, such as collecting k data for each channel.

[0068] In this embodiment, the server may collect optical signals from each channel in the same order as the initial optical signal of the channel. For example, the server collects the optical signal of the first channel. After collecting the first optical signal in the first channel, it switches to the second channel and collects the first optical signal of the second channel, and continues collecting the first optical signal of the second channel until the first optical signal of all channels has been collected. The server then returns to the first channel to collect the second optical signal of the first channel, and repeats the above steps until the kth optical signal of all channels has been collected.

[0069] In this embodiment, after the server completes the acquisition of the optical signals of each channel, it can be stored in a matrix manner. It will be understood by those skilled in the art that this is only an example, and in other embodiments, other storage methods may be used, and this application does not limit this.

[0070] Furthermore, the server can collect the optical signals of each channel to determine the ambient temperature of the measured environment.

[0071] In this embodiment, the fluorescence signal presents an exponential decay curve, and the exponential decay lifetime and the temperature are a single-valued function. Therefore, the server can determine the ambient temperature of the measured environment based on the changes in the optical signals of each channel.

[0072] Specifically, based on the collected optical signals of each channel, the server determines a graph of the optical signal changing with time, that is, determines the attenuation rate of the optical signal, thereby determining the temperature of the environment to be measured.

[0073] The above-mentioned temperature measurement method obtains the initial optical signal of each channel of the multi-channel light source generated by the optical fiber sensor in the measured environment, obtains preset configuration data, and judges the initial optical signal of each channel based on the configuration data to generate each judgment result corresponding to each channel. Then, according to each judgment result, the light source power of the multi-channel light source is adjusted. When it is determined that the initial optical signal of each channel meets the requirements of the configuration data, the light signal of each channel is collected according to the adjusted light source power, and the ambient temperature of the measured environment is determined based on the collected light signals of each channel. Therefore, before performing temperature measurement, the initial optical signal of each channel of the multi-channel light source can be obtained, and the initial optical signal of each channel can be judged and the light source power can be adjusted so that the initial amplitude of the optical signal generated by the adjusted multi-channel light source can be kept consistent, thereby reducing the difference in the initial amplitude of the optical signal of each channel and improving the consistency of the initial amplitude of the optical signal of each channel, thereby improving the accuracy of subsequent temperature detection.

[0074] In one embodiment, obtaining the initial optical signal of each channel generated by the optical fiber sensor in the measured environment may include: obtaining an initial optical signal of each channel generated by the optical fiber sensor in the measured environment.

[0075] As mentioned above, when the server performs temperature measurement based on optical signals, it needs to collect a preset number of optical signals, such as k, for each channel.

[0076] In this embodiment, when collecting the initial optical signals for each channel, the server may only collect one initial optical signal for each channel, and then make subsequent determinations and adjust the light source power for each channel based on the collected initial optical signal. For example, after the LED light source is turned off and a preset waiting time has passed, the server collects the first optical signal for each channel and uses it as the initial optical signal for each channel.

[0077] In this embodiment, collecting optical signals of each channel according to the adjusted light source power may include: collecting multiple optical signals corresponding to each channel according to the adjusted light source power to obtain optical signals of each channel corresponding to each channel.

[0078] Specifically, when performing temperature measurement and detection, the server can collect multiple optical signals from each channel to obtain optical signals corresponding to each channel. As described above, after collecting the first optical signal from the first channel, the server switches to the second channel and collects the first optical signal from the second channel until the first optical signals from all channels are collected. The server then switches to the first channel and continues to collect the second optical signal from the first channel. The above steps are repeated until all optical signals from each channel are collected.

[0079] In the above embodiment, when determining the optical signal and adjusting the light source power, only one initial optical signal from each channel is collected for determination and adjustment. This reduces the amount of data required for the determination and adjustment phase. Furthermore, by collecting the first initial optical signal from each channel, the initial amplitudes of the optical signals generated by the adjusted multi-channel light source can be kept consistent, thereby reducing the differences in the initial amplitudes of the optical signals from each channel and improving the consistency of the initial amplitudes of the optical signals from each channel, thereby improving the accuracy of subsequent temperature detection.

[0080] In one embodiment, Figure 3 As shown, judging the initial optical signal of each channel based on the configuration data and generating the judgment results corresponding to each channel may include: performing data conversion on the initial optical signal of each channel to generate the corresponding initial digital signal; judging the initial digital signal corresponding to each channel based on the configuration data and generating the corresponding judgment result.

[0081] In this embodiment, the server performing data conversion on the initial optical signal of each channel specifically refers to converting the optical signal into a digital signal.

[0082] Specifically, the server can convert the collected initial signals of each channel in turn. After converting the optical signals in the first channel into digital signals, the server continues to convert the optical signals in the second channel into digital signals until the optical signals in all channels are converted into digital signals.

[0083] In this embodiment, the initial digital signal corresponding to each channel obtained by the server after performing data conversion on the initial optical signal of each channel can be expressed as y[1 i ], where i = 1, 2, 3...N, N is the number of channels.

[0084] Furthermore, the server may determine each converted initial digital signal based on the signal threshold and signal difference threshold interval mentioned above, and generate corresponding determination results.

[0085] In the above embodiment, by performing data conversion on the initial optical signal of each channel to generate a corresponding initial digital signal, and then performing judgment, the optical signal can be converted into a digital signal that can be used for actual comparison and judgment, which can improve the efficiency and accuracy of subsequent judgment processing and adjustment processing.

[0086] In one embodiment, Figure 3 As shown, based on the configuration data, the initial digital signal corresponding to each channel is judged and the corresponding judgment result is generated, which may include: determining the signal difference between each initial digital signal and the signal threshold; based on the signal difference threshold interval, judging each signal difference and generating the corresponding judgment result.

[0087] As mentioned above, the configuration data may include a signal threshold and a signal difference threshold interval. In this embodiment, the server may determine each initial digital signal obtained after each conversion based on the signal threshold and the signal difference threshold interval.

[0088] In this embodiment, if Figure 3 As shown, the server can calculate the difference between each initial digital signal and the signal threshold to obtain the corresponding signal difference, that is, y[1 i ]-Y0, and then the server can judge the obtained signal differences based on the obtained signal difference threshold △Y and generate a corresponding judgment result.

[0089] In one embodiment, the signal threshold Y0 is in the interval [3.5V, 4.5V]. The server can be set based on the actual application scenario, and this application does not impose any restrictions on this.

[0090] Similarly, the signal difference threshold △Y is in the interval [0.01V, 0.05V], and the signal difference threshold interval is [-△Y, △Y].

[0091] In one embodiment, the determination result may include a first determination result that the signal difference is less than a signal difference threshold interval, a second determination result that the signal difference is greater than the signal difference threshold interval, and a third determination result that the signal difference is within the signal difference threshold interval.

[0092] As mentioned above, the signal difference is y[1 i ]-Y0, the signal difference threshold interval is [-△Y,△Y]. When the server determines y[1 i ]-Y0 is less than -△Y, a corresponding first determination result can be generated; when the server determines y[1 i ]-Y0 is greater than △Y, a corresponding second judgment result can be generated; when the server determines that y[1 i ]When -Y0 is within the interval [-△Y, △Y], a corresponding third judgment result can be generated.

[0093] In this embodiment, for each channel, after performing the determination of the initial optical signal, the server can determine and generate the corresponding determination result, that is, the first determination result, the second determination result, or the third determination result.

[0094] In this embodiment, if Figure 3 As shown, adjusting the light source power of the multi-channel light source according to each judgment result may include: according to the first judgment result, increasing the light source power of the corresponding channel in the multi-channel light source; according to the second judgment result, lowering the light source power of the corresponding channel in the multi-channel light source; according to the third judgment result, determining not to adjust the light source power of the corresponding channel in the multi-channel light source.

[0095] Specifically, taking the i-th channel as an example, when the server's determination result on the light source power of the i-th channel is a first determination result, the server increases the light source power of the i-th channel by a set adjustment amount, such as the preset adjustment power value △P described above. Similarly, when the server's determination result on the light source power of the i-th channel is a second determination result, the server may reduce the light source power of the i-th channel by a preset adjustment power value △P. When the server's determination result on the light source power of the i-th channel is a third determination result, the server may not adjust the light source power of the i-th channel.

[0096] In this embodiment, the server may traverse each channel and perform corresponding adjustment or non-adjustment processing on the power of each light source corresponding to the multi-channel light source.

[0097] In one embodiment, obtaining the initial optical signals of each channel generated by the optical fiber sensor in the measured environment may include: controlling the light sources of each channel of the multi-channel light source in the measured environment to light up and turn off synchronously, and receiving the light signals of each channel light source through the optical fiber sensor and generating the initial optical signals corresponding to each channel.

[0098] In this embodiment, before collecting the optical signal, the server can control the light sources of each channel to turn on and off simultaneously, such as turning on and waiting for a first preset time, such as the preset time △t0, and then controlling the light sources of each channel to turn off simultaneously.

[0099] Furthermore, after the light sources of each channel are turned off simultaneously, the server may wait for a second preset time period, such as a waiting time period T1, before collecting the light signals of each channel.

[0100] In this embodiment, ΔT0 is within [10ms, 20ms], and T1 is within [0.05ms, 0.3ms]. The server can make adjustments based on the actual application scenario needs, and this application does not impose any restrictions on this.

[0101] In this embodiment, when performing temperature detection, the server can convert the collected optical signal into a digital signal y[k i ], where k = 1, 2, 3...K, K is the total number of data collected by each channel; i = 1, 2, 3...N, N is the total number of channels, and then stored in the form of a matrix, as shown in the following formula (1).

[0102]

[0103] The total number of rows is the total number K of data collected by each channel, and the total number of columns is the total number N of channels.

[0104] Furthermore, the server determines the fluorescence lifetime according to the cached digital signals of each channel, and determines the ambient temperature of the measured environment based on the fluorescence lifetime.

[0105] Specifically, the data of the first column, i.e., the first channel, in formula (1) is taken as an example for explanation.

[0106] In this embodiment, based on the data of the first channel, a light signal, such as a curve of the fluorescence amplitude of a fluorescence signal changing with time, can be obtained. Figure 4 shown.

[0107] Furthermore, the server can calculate the area between the attenuation curve and the t-axis between each time period, that is, the areas of S1, S2, and S3, by sampling the fluorescence curve.

[0108] Furthermore, the server can obtain the relationship between the area and the lifetime of the fluorescence signal through the following formula (2).

[0109]

[0110] In this embodiment, the curve can be divided into three equal parts according to time, that is, Δt=t1-t0=t2-t1=t3-t2, so that the lifetime of the fluorescence signal can be calculated by the following formula (3).

[0111]

[0112] In this embodiment, based on the lifetime of the fluorescent signal, the conversion relationship between the real-time temperature needs to be pre-calibrated in order to obtain the real-time temperature.

[0113] Specifically, the lifetime of the fluorescence signal is a single-valued function of temperature. To verify this relationship, the following calibration experiment can be performed: First, a platinum resistance thermometer and a fiber optic fluorescence probe are bundled together with copper wire and placed in an environment such as an incubator or oil tank. The calibration temperature range is then determined to be -40°C to 200°C, with measurement points every 5°C. At each measurement point, after the test environment temperature stabilizes, the fluorescence afterglow lifetime obtained by detector demodulation and the PRT measurement result are recorded. Furthermore, the recorded fluorescence afterglow lifetime τ and the PRT measurement result T are fitted using the least squares method to ultimately determine the conversion relationship between the two.

[0114] Furthermore, the server may perform temperature conversion based on the obtained conversion relationship and the lifespan of the fluorescent signal obtained by the vehicle to obtain the ambient temperature of the environment to be measured.

[0115] It should be understood that although Figure 2-3 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. In addition, Figure 2-3 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0116] In one embodiment, Figure 5 As shown, a temperature measurement system is provided, which may include: a controller 501, a light emitting device 502 and an optical fiber sensor 503, wherein the light emitting device 502 and the optical fiber sensor 503 are coupled to the controller 501 respectively.

[0117] In this embodiment, light emitting device 502 is used to provide a multi-channel light source in the measured environment. Fiber optic sensor 503 is used to receive the optical signal generated by light emitting device 502 and generate a feedback optical signal for temperature measurement. When controller 501 measures the ambient temperature of the measured environment, it implements the steps of the method described in any of the above embodiments.

[0118] In one embodiment, in combination with reference 5 and Figure 6 The controller 501 may include a microcontroller 1, which may be a 32-bit single-chip microcomputer.

[0119] In this embodiment, the microcontroller 1 obtains the initial optical signal of each channel of the multi-channel light source generated by the optical fiber sensor 503 in the measured environment.

[0120] Furthermore, the microcontroller 1 can also obtain preset configuration data and determine the initial light signal of each channel based on the configuration data to generate respective determination results corresponding to each channel. Furthermore, the microcontroller 1 can adjust the light source power of the multi-channel light source according to the respective determination results.

[0121] In this embodiment, when the microcontroller 1 determines that the initial optical signals of each channel meet the requirements of the configuration data, it collects the optical signals of each channel according to the adjusted light source power, and determines the ambient temperature of the measured environment based on the collected optical signals of each channel.

[0122] In one embodiment, the light emitting device 502 may include an LED light source 4 and a light source control module 2. The LED light source 4 is used to provide light, and the light source control module 2 is used to receive instructions from the microcontroller 1, adjust the light source power, and control the on and off of the LED light source 4.

[0123] In one embodiment, the optical fiber sensor 503 may include: a multi-channel fluorescence sensing optical fiber interface module 6 , and a sensing optical fiber externally connected to the multi-channel fluorescence sensing optical fiber interface module 6 .

[0124] In this embodiment, the multi-channel fluorescence sensing fiber interface module 6 may include a microlens and a dichroic mirror, wherein the dichroic mirror can reflect and transmit light of different wavelengths.

[0125] In one embodiment, the controller 501 may further include an AD chip 3 .

[0126] In this embodiment, the AD chip 3 can obtain an initial optical signal of each channel of the multi-channel light source generated by the optical fiber sensor 503 in the measured environment and the optical signals of each channel, and upload them to the microcontroller 1 .

[0127] In one embodiment, the controller 501 may further include: a photoelectric conversion module 5 .

[0128] In this embodiment, the photoelectric conversion module 5 performs data conversion on each optical signal to generate a corresponding digital signal, and then uploads the converted digital signal to the microcontroller 1 through the AD chip 3, such as uploading it through the SPI (Serial Peripheral Interface) bus, so that the microcontroller 1 can perform subsequent processing, such as making judgments and adjusting the light source power based on the initial digital signal, and based on subsequent temperature measurement.

[0129] In this embodiment, the light emitted by the LED light source 4 of each channel is filtered by a dichroic mirror. The dichroic mirror transmits the light signal to the microlens, and the microlens couples the light signal into the external sensing fiber. The sensing fiber returns the light signal. Taking advantage of the characteristic that the wavelength of the light signal returned by the sensing fiber is inconsistent with the incident wavelength, the light signal returned by each channel is reflected to the photoelectric conversion module 5 through the dichroic mirror. The photoelectric conversion module 5 completes the processing of converting the light signal into a voltage signal and sends the digital signal to the AD chip 3.

[0130] In one embodiment, the microcontroller 1 determines the initial digital signal corresponding to each channel based on the configuration data and generates a corresponding determination result, which may include: determining the signal difference between each initial digital signal and the signal threshold; determining each signal difference based on the signal difference threshold range, and generating a corresponding determination result.

[0131] In one embodiment, the determination result may include a first determination result that the signal difference is less than a signal difference threshold interval, a second determination result that the signal difference is greater than the signal difference threshold interval, and a third determination result that the signal difference is within the signal difference threshold interval.

[0132] In this embodiment, the microcontroller 1 can control the light source control module 2 to increase the light source power of the corresponding channel in the multi-channel light source based on the first determination result. Similarly, the microcontroller 1 can control the light source control module 2 to decrease the light source power of the corresponding channel in the multi-channel light source based on the second determination result. Furthermore, the microcontroller 1 can control the light source control module 2 to determine not to adjust the light source power of the corresponding channel in the multi-channel light source based on the third determination result.

[0133] Specifically, the microcontroller 1 controls the light source control module 2 to adjust the light source power of the multi-channel LED light source 4 according to each judgment result, which may include: according to the first judgment result, controlling the light source control module 2 to increase the light source power of the corresponding channel by a preset adjustment power value △P; according to the second judgment result, controlling the light source control module 2 to lower the light source power of the corresponding channel by a preset adjustment power value △P; according to the third judgment result, controlling the light source control module 2 not to adjust the light source power of the corresponding channel.

[0134] In one embodiment, Figure 7 As shown, a temperature measurement device is provided, comprising: a data acquisition module 100, a signal determination module 200, a light source power adjustment module 300 and a full data acquisition and temperature measurement module 400, wherein:

[0135] The data acquisition module 100 is used to obtain the initial optical signals of each channel generated by the optical fiber sensor in the measured environment;

[0136] The signal determination module 200 is used to obtain preset configuration data, and determine the initial optical signal of each channel based on the configuration data to generate each determination result corresponding to each channel;

[0137] The light source power adjustment module 300 is used to adjust the light source power of the multi-channel light source according to each determination result;

[0138] The full data acquisition and temperature measurement module 400 is used to collect the optical signals of each channel according to the adjusted light source power when it is determined that the initial optical signals of each channel meet the requirements of the configuration data, and determine the ambient temperature of the measured environment based on the collected optical signals of each channel.

[0139] In one embodiment, the data acquisition module 100 may include:

[0140] The initial optical signal acquisition submodule is used to obtain an initial optical signal of each channel generated by the optical fiber sensor in the measured environment.

[0141] The optical signal collection submodule of each channel is used to collect the optical signal of each channel according to the adjusted light source power.

[0142] In one embodiment, the signal determination module 200 may include:

[0143] The data conversion submodule is used to perform data conversion on the initial optical signal of each channel to generate a corresponding initial digital signal.

[0144] The result determination submodule is used to determine the initial digital signal corresponding to each channel based on the configuration data and generate a corresponding determination result.

[0145] In one embodiment, the configuration data includes a signal threshold and a signal difference threshold interval.

[0146] In this embodiment, the result determination submodule may include:

[0147] The signal difference determination unit is used to determine each signal difference between each initial digital signal and a signal threshold.

[0148] The determination result generating unit is used to determine each signal difference based on the signal difference threshold interval and generate a corresponding determination result.

[0149] In one embodiment, the determination result includes a first determination result that the signal difference is less than a signal difference threshold interval, a second determination result that the signal difference is greater than the signal difference threshold interval, and a third determination result that the signal difference is within the signal difference threshold interval.

[0150] In this embodiment, the light source power adjustment module 300 may include:

[0151] A light source power increasing submodule, configured to increase the light source power of a corresponding channel in the multi-channel light source according to the first determination result;

[0152] a light source power reduction submodule, configured to reduce the light source power of a corresponding channel in the multi-channel light source according to the second determination result;

[0153] The light source power maintaining submodule is used to determine, based on the third determination result, that the light source power of the corresponding channel in the multi-channel light source is not to be adjusted.

[0154] In one embodiment, the data acquisition module 100 may further include:

[0155] The light source on / off control submodule is used to control the synchronous lighting and shut-off of each channel light source of the multi-channel light source in the measured environment.

[0156] For specific definitions of the temperature measurement device, please refer to the definitions of the temperature measurement method above and will not be repeated here. Each module in the above-mentioned temperature measurement device can be implemented in whole or in part through software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of each of the above modules.

[0157] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 8As shown. The computer device includes a processor, memory, network interface, and database connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store digital signal data. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, it implements a temperature measurement method.

[0158] Those skilled in the art will understand that Figure 8 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0159] In one embodiment, a computer device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the following steps when executing the computer program: obtaining an initial optical signal of each channel generated by an optical fiber sensor in a measured environment; obtaining preset configuration data, and judging the initial optical signal of each channel based on the configuration data, generating each judgment result corresponding to each channel; adjusting the light source power of a multi-channel light source according to each judgment result; and when it is determined that the initial optical signal of each channel meets the requirements of the configuration data, collecting the optical signal of each channel according to the adjusted light source power, and determining the ambient temperature of the measured environment based on the collected optical signal of each channel.

[0160] In one embodiment, when the processor executes the computer program, obtaining the initial optical signals of each channel generated by the optical fiber sensor in the measured environment includes: obtaining an initial optical signal of each channel generated by the optical fiber sensor in the measured environment.

[0161] In this embodiment, when the processor executes the computer program, it can also achieve: collecting the optical signals of each channel according to the adjusted light source power, including: collecting multiple optical signals corresponding to each channel according to the adjusted light source power to obtain the optical signals of each channel corresponding to each channel.

[0162] In one embodiment, when a processor executes a computer program, it determines the initial optical signal of each channel based on the configuration data and generates the determination results corresponding to each channel, including: performing data conversion on the initial optical signal of each channel to generate the corresponding initial digital signal; and determining the initial digital signal corresponding to each channel based on the configuration data to generate the corresponding determination results.

[0163] In one embodiment, the configuration data includes a signal threshold and a signal difference threshold interval.

[0164] In this embodiment, when the processor executes the computer program, it determines the initial digital signal corresponding to each channel based on the configuration data and generates a corresponding determination result, including: determining each signal difference between each initial digital signal and the signal threshold; based on the signal difference threshold interval, determining each signal difference and generating a corresponding determination result.

[0165] In one embodiment, the determination result includes a first determination result that the signal difference is less than a signal difference threshold interval, a second determination result that the signal difference is greater than the signal difference threshold interval, and a third determination result that the signal difference is within the signal difference threshold interval.

[0166] In this embodiment, when the processor executes the computer program, it adjusts the light source power of the multi-channel light source according to each judgment result, including: according to the first judgment result, increasing the light source power of the corresponding channel in the multi-channel light source; according to the second judgment result, lowering the light source power of the corresponding channel in the multi-channel light source; according to the third judgment result, determining that the light source power of the corresponding channel in the multi-channel light source is not adjusted.

[0167] In one embodiment, when the processor executes the computer program, it obtains the initial optical signal of each channel generated by the optical fiber sensor in the measured environment, including: controlling the synchronous lighting and synchronous shutdown of each channel light source of the multi-channel light source in the measured environment, and receiving the optical signal of each channel light source through the optical fiber sensor and generating the initial optical signal corresponding to each channel.

[0168] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented: obtaining an initial optical signal of each channel generated by an optical fiber sensor in a measured environment; obtaining preset configuration data, and judging the initial optical signal of each channel based on the configuration data, generating each judgment result corresponding to each channel; adjusting the light source power of a multi-channel light source according to each judgment result; when it is determined that the initial optical signal of each channel meets the requirements of the configuration data, collecting the optical signal of each channel according to the adjusted light source power, and determining the ambient temperature of the measured environment based on the collected optical signal of each channel.

[0169] In one embodiment, when the computer program is executed by the processor, obtaining initial optical signals of each channel generated by the optical fiber sensor in the measured environment includes: obtaining an initial optical signal of each channel generated by the optical fiber sensor in the measured environment.

[0170] In this embodiment, when the computer program is executed by the processor, it can also achieve: collecting the optical signals of each channel according to the adjusted light source power, including: collecting multiple optical signals corresponding to each channel according to the adjusted light source power to obtain the optical signals of each channel corresponding to each channel.

[0171] In one embodiment, when the computer program is executed by the processor, it is implemented to determine the initial optical signal of each channel based on the configuration data and generate each determination result corresponding to each channel, including: performing data conversion on the initial optical signal of each channel to generate a corresponding initial digital signal; and determining the initial digital signal corresponding to each channel based on the configuration data to generate a corresponding determination result.

[0172] In one embodiment, the configuration data includes a signal threshold and a signal difference threshold interval;

[0173] In this embodiment, when the computer program is executed by the processor, it is implemented to determine the initial digital signal corresponding to each channel based on the configuration data and generate a corresponding determination result, including: determining each signal difference between each initial digital signal and the signal threshold; based on the signal difference threshold interval, determining each signal difference and generating a corresponding determination result.

[0174] In one embodiment, the determination result includes a first determination result that the signal difference is less than a signal difference threshold interval, a second determination result that the signal difference is greater than the signal difference threshold interval, and a third determination result that the signal difference is within the signal difference threshold interval.

[0175] In this embodiment, when the computer program is executed by the processor, the light source power of the multi-channel light source is adjusted according to each judgment result, including: according to the first judgment result, the light source power of the corresponding channel in the multi-channel light source is increased; according to the second judgment result, the light source power of the corresponding channel in the multi-channel light source is lowered; according to the third judgment result, it is determined that the light source power of the corresponding channel in the multi-channel light source is not adjusted.

[0176] In one embodiment, when the computer program is executed by the processor, it is implemented to obtain the initial optical signals of each channel generated by the optical fiber sensor in the measured environment, including: controlling the synchronous lighting and synchronous shutdown of each channel light source of the multi-channel light source in the measured environment, and receiving the optical signals of each channel light source through the optical fiber sensor and generating the initial optical signals corresponding to each channel.

[0177] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0178] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0179] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A temperature measurement method for detecting temperature using a multi-channel optical fiber fluorescence temperature measurement system, characterized in that: The method comprises: Obtaining initial optical signals of each channel generated by the optical fiber sensor in the measured environment; wherein the initial optical signals of each channel refer to the optical signals of each channel generated by the optical fiber sensor after the multi-channel light source is turned on and off; Obtaining preset configuration data, and determining the initial optical signal of each channel based on the configuration data, and generating respective determination results corresponding to each channel; the configuration data refers to parameters used to detect and determine the consistency of the initial amplitude of the initial optical signal of each channel of the optical fiber sensor; According to each of the determination results, adjusting the light source power of the multi-channel light source to ensure consistency of the initial amplitude of the initial optical signal of each channel; When it is determined that the initial optical signals of each channel meet the requirements of the configuration data, the optical signals of each channel are collected according to the adjusted light source power, and the ambient temperature of the measured environment is determined based on the collected optical signals of each channel.

2. The method according to claim 1, characterized in that The obtaining of the initial optical signals of each channel generated by the optical fiber sensor in the measured environment includes: Acquire an initial optical signal of each channel generated by the optical fiber sensor in the measured environment; The collecting of optical signals of each channel according to the adjusted light source power includes: According to the adjusted light source power, multiple optical signals corresponding to each channel are collected to obtain the channel optical signals corresponding to each channel.

3. The method according to claim 1, characterized in that The determining the initial optical signal of each channel based on the configuration data to generate respective determination results corresponding to each channel includes: Perform data conversion on the initial optical signal of each channel to generate the corresponding initial digital signal; Based on the configuration data, the initial digital signal corresponding to each channel is judged to generate a corresponding judgment result.

4. The method according to claim 3, characterized in that The configuration data includes a signal threshold and a signal difference threshold interval; The determining of the initial digital signal corresponding to each channel based on the configuration data to generate a corresponding determination result includes: determining each signal difference between each of the initial digital signals and the signal threshold; Based on the signal difference threshold interval, each of the signal differences is determined, and a corresponding determination result is generated.

5. The method according to claim 4, characterized in that The determination results include a first determination result that the signal difference is less than the signal difference threshold interval, a second determination result that the signal difference is greater than the signal difference threshold interval, and a third determination result that the signal difference is within the signal difference threshold interval; The adjusting the light source power of the multi-channel light source according to each of the determination results includes: According to the first determination result, increasing the light source power of the corresponding channel in the multi-channel light source; According to the second determination result, lowering the light source power of the corresponding channel in the multi-channel light source; According to the third determination result, it is determined that the light source power of the corresponding channel in the multi-channel light source is not adjusted.

6. The method according to claim 1, wherein When obtaining the initial optical signals of each channel generated by the optical fiber sensor in the measured environment, it includes: The light sources of each channel of the multi-channel light source in the measured environment are controlled to emit light and shut down synchronously, and the optical fiber sensor receives the light signal of each channel light source and generates the initial light signal corresponding to each channel.

7. A temperature measuring device for use in a multi-channel optical fiber fluorescence temperature measurement system for temperature detection, characterized in that: The device comprises: A data acquisition module is used to obtain the initial optical signals of each channel generated by the optical fiber sensor in the measured environment; wherein the initial optical signals of each channel refer to the optical signals of each channel generated by the optical fiber sensor after the multi-channel light source is turned on and off; A signal determination module, configured to obtain preset configuration data, and determine the initial optical signal of each channel based on the configuration data, and generate determination results corresponding to each channel; a light source power adjustment module, configured to adjust the light source power of the multi-channel light source according to each of the determination results, so as to ensure the consistency of the initial amplitude of the initial optical signal of each channel; The full data acquisition and temperature measurement module is used to collect the optical signals of each channel according to the adjusted light source power when it is determined that the initial optical signals of each channel meet the requirements of the configuration data, and determine the ambient temperature of the measured environment based on the collected optical signals of each channel; the configuration data refers to the parameters used to detect and determine the consistency of the initial amplitudes of the initial optical signals of each channel of the optical fiber sensor.

8. A temperature measurement system, characterized in that: The system includes: a controller, a light emitting device, and an optical fiber sensor, wherein the light emitting device and the optical fiber sensor are respectively coupled to the controller; The light emitting device is used to provide a multi-channel light source in the environment being tested; The optical fiber sensor is used to receive the optical signal generated by the light emitting device and generate a feedback optical signal for temperature measurement; The controller is configured to measure the ambient temperature of the measured environment according to the method according to any one of claims 1 to 6.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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