WO2020147561A1 - Spectrometer and controller thereof - Google Patents

Abstract

A spectrometer (100) and a controller (5) thereof are applicable to the technical field of spectrometers. The controller (5) is applied in the spectrometer (100), and comprises the following integrally joined components: a processor (51), a light source driving circuit (52), a data processing circuit (53) and a display screen driving circuit (54). The spectrometer has a compact structure, and a touch command can be input via a touch display screen (6). The spectrometer employs the controller (5) to control a light source (2), a spectrum detector (4) and the touch display screen (6) according to the touch command so as to detect spectrum data of a sample (200), thereby achieving a high degree of intelligence.

Description

Spectrometer and its controller Technical field

The invention belongs to the technical field of spectrometers, and particularly relates to a spectrometer and a controller thereof.

Background technique

Spectrometer, also known as spectrometer, is an instrument for qualitative and quantitative analysis. Through the spectrum test, information about the material's excitation spectrum, emission spectrum, fluorescence lifetime, and liquid sample concentration can be obtained. Fluorescence spectrometers are realized based on the photoluminescence properties of fluorescent materials and are commonly used to detect the dipole orientation of thin film material molecules.

Summary of the invention

In view of this, the embodiment of the present invention provides a spectrometer and its controller, which have high integration, compact structure and high degree of intelligence.

The first aspect of the embodiments of the present invention provides a controller for a spectrometer. The spectrometer includes a main housing and a sample holder, a light source, a light receiver, a spectrum detector, a controller, and a sample holder integrated in the main housing. For a touch display screen, the controller includes an integrated processor, a light source drive circuit, a data processing circuit, and a display screen drive circuit;

The sample holder is fixed to the main housing, the light receiver is communicatively connected with the spectrum detector through an optical fiber, the light source driving circuit is electrically connected to the processor and the light source, and the data processing circuit Electrically connected to the processor and the spectrum detector, and the display screen drive circuit is electrically connected to the processor and the touch screen;

The sample rack is used to carry samples to be tested;

The touch screen is used to input touch control instructions;

The processor is configured to control the light source driving circuit to drive the light source to emit light to the sample according to the touch control instruction, and to excite the sample to reflect or emit light;

The light receiver is used to receive light reflected or emitted by the sample and coupled to the optical fiber;

The spectrum detector is used to obtain the light reflected or emitted by the sample through the optical fiber, and perform sampling and photoelectric conversion to obtain spectrum detection data and send it to the data processing circuit;

The data processing circuit is used to perform signal processing and data conversion on the spectrum detection data and send it to the processor;

The processor is further configured to analyze and process the spectrum detection data after signal processing and data conversion according to the touch control instruction to obtain spectrum data;

The processor is further configured to control the display screen driving circuit to drive the touch display screen to display the spectral data according to the touch control instruction.

In an embodiment, the spectrometer further includes a light source rotating motor, a light source rotating table, an angle rotating motor, and an angle rotating table, and the controller further includes a motor drive circuit;

The motor drive circuit is electrically connected to the light source rotating motor, the angle rotating motor, and the processor, and the light source rotating table is mechanically connected to the light source rotating motor and the light source;

The light source rotating table is fixed to the angle rotating table, and the sample holder is arranged through the light source rotating table and the angle rotating table, so that the light source rotating table and the angle rotating table can rotate around the sample holder ；

The processor is further configured to control the motor drive circuit to drive the light source rotating motor and the angle rotating motor to rotate according to the touch control instruction.

In one embodiment, the motor drive circuit includes a motor drive control circuit, an H-bridge drive circuit, and a monitoring protection circuit;

The motor drive control circuit is electrically connected to the processor, the H bridge drive circuit, and the monitoring protection circuit, and the H bridge drive protection circuit is connected to the monitoring protection circuit, the light source rotating motor, and the angle The rotating electric machine is electrically connected, and the monitoring and protection circuit is electrically connected to the processor;

The processor is also used to control the monitoring and protection circuit to monitor the voltage signal output from the motor drive control circuit to the H-bridge drive circuit, and to monitor the H-bridge drive circuit output to the light source rotating motor and the The three-phase current signal of the angle rotating motor is used for overvoltage protection and overcurrent protection of the light source rotating motor and the angle rotating motor.

In one embodiment, the monitoring protection circuit is a motor state monitor.

In an embodiment, the spectrometer further includes a USB interface, and the controller further includes a USB drive circuit;

The USB drive circuit is electrically connected with the USB interface and the processor, and the USB interface is communicatively connected with the client through a USB data line;

The client is used to input control instructions;

The processor is further configured to control the USB drive circuit to drive the USB interface to communicate with the client to obtain the control instruction;

The processor is further configured to control the light source driving circuit to drive the light source to emit light to the sample according to the control instruction, and to excite the sample to reflect or emit light;

The processor is further configured to analyze and process the spectrum detection data after signal processing and data conversion according to the control instruction to obtain spectrum data;

The processor is further configured to control the display screen drive circuit to drive the touch screen display to display the spectral data according to the control instruction.

In one embodiment, the light source driving circuit includes a light source driving interface, a V/I conversion circuit, a digital-to-analog conversion circuit, a voltage detection circuit, a current detection circuit, and a first analog-to-digital conversion circuit;

The light source driving interface is electrically connected to the light source, the V/I conversion circuit, the voltage detection circuit, and the current detection circuit, and the digital-to-analog conversion circuit is electrically connected to the V/I conversion circuit and the processing The first analog-to-digital conversion circuit is electrically connected to the voltage detection circuit, the current detection circuit, and the processor;

The processor is further configured to send a light source driving instruction to the digital-to-analog conversion circuit, and a voltage detection instruction and a current detection instruction to the first analog-to-digital conversion circuit according to the touch control instruction;

The digital-to-analog conversion circuit is used to convert the light source driving command into a light source driving voltage signal;

The V/I conversion circuit is used to convert the light source driving voltage signal into a light source driving current signal, and output to the light source through the light source driving interface, so as to drive the light source to emit light to the sample;

The voltage detection circuit is used to obtain the operating voltage signal of the light source through the light source drive interface;

The current detection circuit is used to obtain the working current signal of the light source through the light source driving interface;

The first analog-to-digital conversion circuit is configured to convert the working voltage signal into a voltage digital signal according to the voltage detection instruction and send it to the processor, and convert the working current signal into a current according to the current detection instruction And send a digital signal to the processor;

The processor is further configured to detect the size of the operating voltage of the light source according to the digital voltage signal, detect the size of the operating current of the light source according to the digital current signal, and according to the size of the operating voltage and the The magnitude of the working current feedback controls the magnitude of the current of the light source driving current signal.

In an embodiment, the controller further includes a temperature and humidity detection circuit;

The temperature and humidity detection circuit is electrically connected to the first analog-to-digital conversion circuit;

The processor is further configured to send a temperature and humidity detection instruction to the first analog-to-digital conversion circuit according to the touch control instruction;

The temperature and humidity detection circuit is used to detect temperature data and humidity data of the environment where the controller is located;

The first analog-to-digital conversion circuit is further configured to convert the temperature data into digital temperature data according to the temperature and humidity detection instruction, and convert the humidity data into digital humidity data and send them to the processor;

The processor is further configured to obtain the temperature of the environment where the controller is located according to the digital temperature data, obtain the humidity of the environment where the controller is located according to the digital humidity data, and obtain the humidity of the environment where the controller is located according to the temperature and the temperature. The humidity controls the working state of the spectrometer.

In one embodiment, the data processing circuit includes a signal processing circuit and a second analog-to-digital conversion circuit;

The second analog-to-digital conversion circuit is electrically connected to the signal processing circuit and the processor;

The signal processing circuit is used to perform signal processing on the spectrum detection data;

The second analog-to-digital conversion circuit is used to perform analog-to-digital conversion on the spectrum detection data after signal processing and send it to the processor.

In one embodiment, the processor is an ARM processor.

A second aspect of the embodiments of the present invention provides a spectrometer, which includes the above-mentioned controller.

The embodiment of the present invention provides a controller including an integrated processor, a light source drive circuit, a data processing circuit, and a display drive circuit applied to a spectrometer. The structure is compact, and touch control instructions can be input through the touch screen. The controller controls the light source, the spectrum detector and the touch screen according to the touch control instructions, so as to realize the detection of the spectrum data of the sample, and the degree of intelligence is high.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of the structure of a spectrometer provided in Embodiment 1 of the present invention;

2 is a schematic diagram of the structure of the spectrometer provided in the second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a spectrum detection system provided by Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of a controller provided by Embodiment 4 of the present invention;

FIG. 5 is a schematic structural diagram of a controller provided by Embodiment 5 of the present invention;

FIG. 6 is a schematic flowchart of a motion control method for a spectrometer according to Embodiment 6 of the present invention;

7 is a schematic diagram of the motion control process of the spectrometer provided in the sixth embodiment of the present invention;

FIG. 8 is a schematic diagram of the software system architecture of the controller provided in the seventh embodiment of the present invention;

Fig. 9 is a schematic structural diagram of a spectrometer provided in the eighth embodiment of the present invention.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the present invention. Part of the embodiment, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The term "comprising" in the specification and claims of the present invention and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally includes Other steps or units inherent in these processes, methods, products or equipment. In addition, the terms "first", "second", and "third" are used to distinguish different objects, rather than describing a specific order.

Example one

As shown in FIG. 1, this embodiment provides a spectrometer 100, which includes a main housing 101 and a sample holder 1, a light source 2, a light receiver 3, a spectrum detector 4, a controller 5, and a sample holder integrated on the main housing 101. Touch screen 6.

In specific applications, the spectrometer can be set to a far ultraviolet spectrometer, an ultraviolet spectrometer, a fluorescence spectrometer, a visible light spectrometer, an infrared spectrometer, a far infrared spectrometer, etc., according to the spectral range in which the spectrometer can work normally.

As shown in Figure 1, in this embodiment, the sample holder 1 is fixed to the main housing 101, the light source 2, the spectrum detector 4, and the touch screen 6 are electrically connected to the controller 5, and the optical receiver 3 is connected to the controller 5 through the optical fiber 102. The spectrum detector 4 is connected in communication.

In specific applications, electrical connection refers to a connection for transmitting current signals, voltage signals, pulse signals, etc., realized through cables, data lines, etc. The communication connection includes wireless connection, electrical connection and optical fiber connection, used to realize wireless communication, electrical communication or optical communication.

In this embodiment, the sample rack 1 is used to carry the sample 200 to be tested.

In specific applications, the sample holder can be set to any shape capable of carrying samples according to actual needs, for example, a columnar platform, a rectangular platform, etc. Fig. 1 exemplarily shows that the sample holder 1 is a cylindrical platform. The sample holder can be fixed to the main housing by any fixing method according to actual needs, for example, fixed to the bottom plate of the main housing by a threaded solid piece, a buckle or glue.

In this embodiment, the light source 2 is used to emit light to the sample 200 to excite the sample 200 to reflect or emit light.

In specific applications, you can select the corresponding light source according to the type of spectrometer. For example, when the spectrometer is a fluorescence spectrometer, the light source is an ultraviolet light source; when the spectrometer is an infrared spectrometer, the light source is an infrared light source; when the spectrometer is a visible light spectrometer, the light source is a visible light source.

In this embodiment, the optical receiver 3 is used to receive light reflected or emitted by the sample 200 and coupled to the optical fiber 102.

In specific applications, the optical receiver can be a converging lens with an optical fiber connected to the tail, which is mainly used to couple the light reflected or emitted by the sample excited by the light source to the optical fiber and transmit it to the spectrum detector. For example, the optical receiver may be an optical receiver or an optical fiber receiver.

In this embodiment, the spectrum detector 4 is used to obtain the light reflected or emitted by the sample 200 through the optical fiber 102, and perform sampling and photoelectric conversion to obtain the spectrum detection data and send it to the controller 5.

In specific applications, the spectrum detector is mainly used to sample the light reflected or emitted by the sample and convert it into an electrical signal. The spectral detector may include a dispersive element, a focusing element, and a detector array. The detector array may be a CCD (charge coupled device) array or other types of photodetector arrays, for example, composed of multiple photoelectric converters. Light detector array. The photoelectric converter may be a photomultiplier tube.

In this embodiment, the touch screen 6 is used to input touch control instructions.

In specific applications, depending on the display technology and touch technology, any type of touch screen can be selected according to actual needs. For example, capacitive/inductive LED touch screens, capacitive/inductive OLED (Organic Light-Emitting Diode, organic light-emitting diode) touch screens, etc.

In this embodiment, the controller 5 is used to control the light source 2 and the touch screen 6 according to the touch control instruction, and analyze and process the spectrum detection data to obtain the spectrum data;

The touch screen 6 is also used to display spectral data.

In specific applications, the controller can select any processor with data processing and control functions. The processor can be a central processing unit (CPU), or other general-purpose processors and digital signal processors (Digital Signal Processors). Signal Processor, DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. . The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In one embodiment, the controller includes an ARM (Advanced RISC Machines) processor.

This embodiment provides a spectrometer including a main housing and a sample holder, a light source, a light receiver, a spectrum detector, a controller, and a touch screen integratedly arranged on the main housing, with high integration, compact structure, and The touch control instructions are input through the touch screen, and the controller controls the light source, the spectrum detector and the touch screen according to the touch control instructions, so as to realize the detection of the spectrum data of the sample with a high degree of intelligence.

Example 2

As shown in FIG. 2, in this embodiment, the spectrometer 100 further includes a light source rotating motor (not shown in the figure), a light source rotating table 103, an angle rotating motor (not shown in the figure), and an angle rotating table 104.

In specific applications, the light source rotating motor and the angle rotating motor can choose any type of motor according to actual needs, for example, a DC or AC servo motor.

In this embodiment, the light source rotating motor and the angle rotating motor are electrically connected to the controller 5, and the light source rotating table 103 is mechanically connected to the light source rotating motor and the light source 2;

The light source rotating table 103 is fixed to the angle rotating table 104, and the sample holder 1 is installed through the light source rotating table 103 and the angle rotating table 104, so that the light source rotating table 103 and the angle rotating table 104 can rotate around the sample holder 1.

In specific applications, the light source rotating table and angle rotating table can be set to any shape according to actual needs. The light source rotating motor is used to rotate and drive the light source rotating table to rotate under the control of the controller; the angle rotating motor is used to rotate under the control of the controller And drive the angle rotating table to rotate; the light source rotating table is used to directly drive the light source to rotate; the angle rotating table is used to drive the light source rotating table to rotate, and then indirectly drive the light source to rotate.

FIG. 2 exemplarily shows that the light source rotating table 103 and the angle rotating table 104 are both annular platforms with annular through holes in the center, the sample holder 1 is arranged through the annular through holes of the light source rotating table 103 and the angle rotating table 104, and the light source 2 The fixed plate 105 is mechanically connected to the light source rotating table 103.

In specific applications, the light source is stationary relative to the light source rotating table. When the light source rotating stage or the angle rotating stage rotates, the sample holder is stationary relative to the main housing.

In this embodiment, the light source rotating motor, the light source rotating table, the angle rotating motor, and the angle rotating table are set to electrically connect the light source rotating motor and the angle rotating motor to the controller. The light source rotating table is mechanically connected to the light source rotating motor and the light source. The light source rotating table Fixed on the angle rotating table, the sample rack is set through the light source rotating table and the angle rotating table, so that the light source rotating table and the angle rotating table can rotate around the sample rack, and touch control commands can be input through the touch screen, and the controller will control the commands according to the touch The light source rotating motor or the angle rotating motor is controlled to start work to control the rotation of the light source rotating table or the angle rotating table, thereby controlling the light emitting position and angle of the light source relative to the sample.

Example three

As shown in FIG. 3, this embodiment provides a spectrum detection system, which includes a spectrometer 100 and a client 300 communicatively connected with the spectrometer. The spectrometer 100 also includes a USB interface 7, which is electrically connected to a controller 5. It communicates with the client 300 through the USB interface 7 and the USB data line 106.

In specific applications, the client can be a PC (Personal Computer) client, a laptop, a desktop computer, a handheld computer, a server, etc., and it can also be a mobile terminal such as a mobile phone, a tablet, and a personal digital assistant. .

In this embodiment, the client 300 is used to input control instructions.

In specific applications, the client can input control instructions through any human-computer interaction method, for example, input control instructions through a keyboard, mouse, touch screen, voice recognition device, etc. connected to the client.

In this embodiment, the controller 5 is also used to control the light source 2 and the touch screen 6 according to the control instruction, and analyze the spectrum detection data to obtain spectrum information;

The client 300 is also used to process the spectrum information to obtain spectrum data.

In this embodiment, by setting a USB interface on the spectrometer, the spectrometer can be connected to the client through the USB interface and the USB data cable, so that the user can control the spectrometer through the client, and can process the spectral information obtained by the spectrometer through the client It is the spectral data, which is convenient for the application of the spectral data. The spectrometer can also be remotely controlled by other clients connected to the client remotely.

Example 4

As shown in FIG. 4, in this embodiment, the controller 5 in the first to third embodiments includes a processor 51, a light source driving circuit 52, a data processing circuit 53 and a display screen driving circuit 54 integratedly arranged.

In specific applications, the processor, light source drive circuit, data processing circuit, and display drive circuit can all be a central processing unit (CPU), or other general-purpose processors, digital signal processors (Digital Signal Processors). , DSP), application specific integrated circuit (ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In one embodiment, the processor is an ARM processor.

In one embodiment, the display screen driving circuit includes a source driving chip and a gate driving chip.

In one embodiment, the light source driving circuit includes a dimmer.

As shown in FIG. 4, in this embodiment, the light source driving circuit 52 is electrically connected to the processor 51 and the light source 2, the data processing circuit 53 is electrically connected to the processor 51 and the spectrum detector 4, and the display driving circuit 54 is electrically connected to the processor. 51 and the touch screen 6 are electrically connected.

In this embodiment, the processor 51 is configured to control the light source driving circuit 52 to drive the light source to emit light to the sample 200 according to the touch control instruction, and to excite the sample 200 to reflect or emit light;

The data processing circuit 53 is used to perform signal processing and data conversion on the spectrum detection data and send it to the processor 51;

The processor 51 is further configured to analyze and process the spectrum detection data after signal processing and data conversion according to the touch control instruction to obtain spectrum data;

The processor 51 is also used for controlling the display screen drive circuit 54 to drive the touch screen 6 to display spectral data according to the touch control instruction.

As shown in FIG. 4, in this embodiment, the controller 5 further includes a motor drive circuit 55, and the motor drive circuit 55 is electrically connected to the light source rotating motor, the angle rotating motor, and the processor 51;

The processor 51 is also used for controlling the motor drive circuit 55 to drive the light source rotating motor and the angle rotating motor to rotate according to the touch control instruction.

As shown in FIG. 4, in this embodiment, the controller 5 further includes a USB drive circuit 56, which is electrically connected to the USB interface 7 and the processor 51, and the USB interface 7 communicates with the client 300 through the USB data line 106 connection;

The processor 51 is also used to control the USB drive circuit 56 to drive the USB interface 7 to communicate with the client 300 to obtain control instructions;

The processor 51 is further configured to control the light source driving circuit 52 to drive the light source to emit light to the sample 200 according to the control instruction, and to excite the sample 200 to reflect or emit light;

The processor 51 is further configured to analyze and process the spectrum detection data after signal processing and data conversion according to the control instructions to obtain spectrum data;

The processor 51 is also used for controlling the display screen drive circuit 54 to drive the touch screen 6 to display spectral data according to the control instruction.

In specific applications, according to different USB interface types, a USB drive circuit adapted to the USB interface type can be selected. For example, the USB drive circuit can include a USB drive chip with a USB drive program written in it.

This embodiment provides a controller including an integrated processor, a light source drive circuit, a data processing circuit, and a display drive circuit applied to a spectrometer. The structure is compact, and touch control instructions can be input through the touch display screen. The sensor controls the light source, the spectrum detector and the touch display screen according to the touch control instructions, so as to realize the detection of the spectrum data of the sample with a high degree of intelligence.

Example 5

As shown in FIG. 5, in this embodiment, the motor drive circuit 55 in the fourth embodiment includes a motor drive control circuit 551, an H-bridge drive circuit 552, and a monitoring protection circuit 553.

In specific applications, according to the different types of the light source rotating motor and the angle rotating motor, a motor drive control circuit suitable for the light source rotating motor and the angle rotating motor can be selected. For example, the motor drive circuit includes a motor drive chip.

In specific applications, the monitoring protection circuit may be a motor condition monitor (MCM).

As shown in FIG. 5, in this embodiment, the motor drive control circuit 551 is electrically connected to the processor 51, the H-bridge drive circuit 552, and the monitoring and protection circuit 553. The H-bridge drive and protection circuit 552 and the monitoring and protection circuit 553, the light source rotating motor It is electrically connected to the angle rotating motor, and the monitoring protection circuit 553 is electrically connected to the processor 51;

The processor 51 is also used to control the monitoring protection circuit 553 to monitor the voltage signal output from the motor drive control circuit 551 to the H-bridge drive circuit 552, and to monitor the three-phase current signal output from the H-bridge drive circuit 552 to the light source rotating motor and the angle rotating motor, In order to carry out overvoltage protection and overcurrent protection for the light source rotating motor and the angle rotating motor.

In specific applications, the motor drive control circuit can reach 128 subdivisions.

In specific applications, the processor can also have a built-in or external timer. The processor uses the pulse width modulation signal output by the timer to control the light source rotating motor and the angle rotating motor, and the operating speed and pulse of the light source rotating motor and the angle rotating motor The frequency of the width adjustment signal is related. The rotation process of the light source rotating motor and the angle rotating motor includes a uniform speed operation process, an acceleration operation process and a deceleration operation process.

The expression of the uniform speed running process is as follows:

Among them, f _step is the frequency of the pulse width modulation signal, υ is the uniform running speed of the motor, n _m is the step of the single pulse of the motor, and θ _step is the angle of the full _step of the motor.

The acceleration motion process and the deceleration motion process are controlled by the S-curve algorithm. The equation of the S-curve is:

Stretch the S curve, that is

Among them, 0～num are the acceleration interval or deceleration interval, and i is the current acceleration time or the current deceleration time.

The acceleration curve method or deceleration curve equation is:

Among them, f _i is the frequency corresponding to the current acceleration time or the current deceleration time, f _min is the frequency corresponding to the initial speed at startup, and f _max is the frequency corresponding to the maximum speed.

As shown in FIG. 5, in this embodiment, the light source driving circuit 52 in the fourth embodiment includes a light source driving interface 521, a V/I conversion circuit 522, a digital-to-analog conversion circuit 523, a voltage detection circuit 524, a current detection circuit 525, and The first analog-to-digital conversion circuit 526.

In specific applications, the digital-to-analog conversion circuit can be a digital-to-analog converter, the voltage detection circuit can be a voltage detection chip, the current detection circuit can be a current detection chip, and the first analog-to-digital conversion circuit can be an analog-to-digital conversion chip.

In this embodiment, the light source drive interface 521 is electrically connected to the light source 2, the V/I conversion circuit 522, the voltage detection circuit 524, and the current detection circuit 525, and the digital-to-analog conversion circuit 523 is electrically connected to the V/I conversion circuit 522 and the processor 51. Connected, the first analog-to-digital conversion circuit 526 is electrically connected to the voltage detection circuit 524, the current detection circuit 523, and the processor 51;

The processor 51 is further configured to send a light source driving instruction to the digital-to-analog conversion circuit 523, and a voltage detection instruction and a current detection instruction to the first analog-to-digital conversion circuit 526 according to the touch control instruction;

The digital-to-analog conversion circuit 523 is used to convert the light source driving command into a light source driving voltage signal;

The V/I conversion circuit 522 is used to convert the light source driving voltage signal into a light source driving current signal, and output it to the light source 2 through the light source driving interface 521 to drive the light source 2 to emit light to the sample 200;

The voltage detection circuit 524 is used to obtain the operating voltage signal of the light source 2 through the light source driving interface 521;

The current detection circuit 525 is used to obtain the working current signal of the light source 2 through the light source driving interface 521;

The first analog-to-digital conversion circuit 526 is configured to convert the working voltage signal into a voltage digital signal according to the voltage detection instruction and send it to the processor 51, and convert the working current signal into a current digital signal according to the current detection instruction and send it to the processor 51;

The processor 51 is also used to detect the size of the operating voltage of the light source 2 according to the digital voltage signal, detect the size of the operating current of the light source 2 according to the digital current signal, and feedback to control the output of the light source drive current signal according to the size of the operating voltage and the size of the operating current. The magnitude of the current.

In specific applications, the touch control instructions include instructions for setting the size of the light source drive current. The user can input the instructions for setting the current size of the light source drive current signal through the touch screen, and the processor will analyze the instructions and set the light source. The current magnitude command of the driving current signal is converted into a digital code corresponding to the light source driving voltage signal (that is, the light source driving command), and then converted into a corresponding light source driving voltage signal by a digital-to-analog conversion circuit, and then converted by a V/I conversion circuit Into the light source drive current signal.

In specific applications, the current size of the light source driving current signal can be set to 500mA, and the resolution of the digital-to-analog conversion circuit can be 14-bit resolution. Correspondingly, the adjustment accuracy of the light source driving voltage signal is 0.22014mV.

In specific applications, after setting the current level of the light source driving current signal, the current detection circuit monitors the current level of the light source's working current signal in real time (that is, the current level of the light source driving current signal actually output to the light source), if the light source's working current If there is an error between the current size of the signal and the current size of the set light source drive current signal, the processor adjusts the light source drive voltage signal output by the digital-to-analog conversion circuit until the current size of the light source working current signal is consistent with the set light source drive current signal The currents are equal.

In a specific application, the resolution of the first analog-to-digital conversion circuit can be a 24-bit resolution, the reference source is 2048mV, and the corresponding current sampling accuracy is 0.000976mA.

In this embodiment, the light source driving interface may be a multi-port transponder (HUB), which is used to realize electrical connection and electrical signal transmission between the light source and the V/I conversion circuit, the voltage detection circuit, and the current detection circuit.

As shown in FIG. 5, in this embodiment, the controller 5 in the fourth embodiment further includes a temperature and humidity detection circuit 57, and the temperature and humidity detection circuit 57 is electrically connected to the first analog-to-digital conversion circuit 526;

The processor 51 is further configured to send a temperature and humidity detection instruction to the first analog-to-digital conversion circuit 526 according to the touch control instruction;

The temperature and humidity detection circuit 57 is used to detect temperature data and humidity data of the environment where the controller 5 is located;

The first analog-to-digital conversion circuit 526 is further configured to convert temperature data into digital temperature data according to the temperature and humidity detection instruction, and convert the humidity data into digital humidity data and send it to the processor 51;

The processor 51 is also configured to obtain the temperature of the environment where the controller 5 is located according to the digital temperature data, obtain the humidity of the environment where the controller 5 is located according to the digital humidity data, and control the working state of the spectrometer 100 according to the temperature and humidity.

In specific applications, the temperature and humidity detection circuit can include a temperature sensor and a humidity sensor. By detecting the temperature and humidity inside the controller, it can be controlled by the processor when the temperature inside the controller exceeds the warning temperature value or the humidity exceeds the warning humidity value. The touch screen displays an alarm, directly controls the shutdown of the spectrometer, or shuts down the components of the spectrometer that will be damaged by the influence of temperature and humidity, such as the light source rotating motor, angle rotating motor, or touch screen that will be damaged by humidity.

As shown in FIG. 5, in this embodiment, the data processing circuit 53 in the fourth embodiment includes a signal processing circuit 531 and a second analog-to-digital conversion circuit 532;

The second analog-to-digital conversion circuit 532 is electrically connected to the signal processing circuit 531 and the processor 51;

The signal processing circuit 531 is used to perform signal processing on the spectrum detection data;

The second analog-to-digital conversion circuit 532 is configured to perform analog-to-digital conversion on the spectrum detection data after signal processing and send it to the processor 51.

In specific applications, the signal processing circuit is used to perform analog signal front-end processing on the spectrum detection data, the signal processing circuit may include a signal amplification circuit, a filter, etc., and the second analog-to-digital conversion circuit may be an analog-to-digital converter.

In specific applications, the resolution of the second analog-to-digital conversion circuit may be 24-bit resolution, and correspondingly, the signal sampling accuracy of the spectrum detection data after signal processing is 0.000488mV.

Example Six

As shown in FIG. 6, this embodiment provides a motion control method implemented by the spectrometer 100 based on any one of Embodiment 2 to Embodiment 5. The method may be a software program method executed by the controller 5 or the processor 51 , The motion control method includes:

Step S601: Initialize the spectrometer, and reset the torque of the light source rotating motor and the angle rotating motor to zero.

In specific applications, initializing the spectrometer refers to restoring the operating state or working parameters of each device in the spectrometer to the initial value, so that the software system or each device of the spectrometer is restored to the initial state.

In an embodiment, step S601 includes:

Initialize the spectrometer;

Set the size of the light source drive current;

The torque of the light source rotating electric machine and the angle rotating electric machine is reset to zero.

In specific applications, after the spectrometer is powered off, it will be automatically initialized when it is powered on again. The size of the light source drive current can be set by inputting touch control commands on the touch screen. The torque of the light source rotating motor and the angle rotating motor is controlled by the controller or processor .

In step S602, the light source rotating motor is controlled to rotate 45° in the first direction, and the light source rotating table is used to drive the light source to rotate at a Brewster angle of 45° in the first direction.

In specific applications, the first direction is clockwise or counterclockwise.

Step S602: Control the angle rotating motor to rotate 90° in the first direction with a preset step length, drive the light source to rotate 90° Brewster angle in the first direction through the angle rotating table, and When the angle rotating motor rotates by a preset step length, the spectrum detection data is collected once.

In specific applications, the preset step length can be set according to actual needs, for example, the preset step length can be 0.1°.

Step S604: Reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the spectrum detection data collection in the first direction.

In an embodiment, step S603 includes:

Step S6031: Control the angle rotation motor to rotate in the first direction with a preset step length, and drive the light source to rotate in the first direction through the angle rotation table;

Step S6032: Determine whether the angle rotating motor rotates by a preset step length;

Step S6033: If the angle rotating motor rotates by a preset step length, collect spectrum detection data;

Step S6034, if the angle rotating motor does not rotate by the preset step length, return to step S6032;

Step S6035: Determine whether the angle rotating motor has rotated 90°;

Step S6036: If the angle rotating motor has rotated 90°, then go to step S604;

Step S6037: If the angle rotating motor does not rotate 90°, return to step S6035.

Step S605: Control the light source rotating motor to rotate 45° in the second direction, and the light source rotating table drives the light source to rotate 45° Brewster's angle in the second direction.

In a specific application, the second direction is a direction opposite to the first direction, and one of the first direction and the second direction is a clockwise direction and the other is a counterclockwise direction.

Step S606: Control the angle rotation motor to rotate 90° in the second direction with a preset step length, drive the light source to rotate 90° Brewster's angle in the second direction through the angle rotation table, and When the angle rotating motor rotates with a preset step length, the spectrum detection data is collected once;

Step S607: Reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the spectrum detection data collection in the second direction.

In one embodiment, step S606 includes:

Step S6061, controlling the angle rotation motor to rotate in the second direction at a preset step length, and driving the light source to rotate in the second direction through the angle rotation table;

Step S6062, determine whether the angle rotating motor rotates by a preset step length;

Step S6063: If the angle rotating motor rotates by a preset step length, collect spectrum detection data;

Step S6064, if the angle rotating motor does not rotate by the preset step length, return to step S6062;

Step S6065, judging whether the angle rotating motor has rotated 90°;

Step S6066: If the angle rotating motor has rotated 90°, then go to step S607;

Step S6067, if the angle rotating motor does not rotate 90°, return to step S6065.

As shown in FIG. 7, the relative positions of the light source 2 and the light receiver 3 during the motion control process of the spectrometer are exemplarily shown; where the positions A and A'are respectively when the torque of the light source rotating motor and the angle rotating motor is zeroed , The positions of the light source 2 and the light receiver 3; positions B and B'are the positions of the light source 2 and the light receiver 3 when the light source rotating motor rotates 45° in a clockwise direction; positions C and C'are the angle rotating motor along the clockwise direction, respectively The position of the light source 2 and the light receiver 3 when the clock hand rotates 90°.

In specific applications, after step S607, the spectrum detection data of the current sample is collected. If the spectrum detection data of the current sample needs to be collected repeatedly to improve the accuracy of data collection, steps S601 to S607 can be repeated; if If you need to continue to collect the spectrum detection data of the next sample, you can replace the current sample with the next sample, and then re-execute steps S601 to S607; if you do not need to collect any more data, stop performing the motion control step and end the collection of spectrum detection data.

In the embodiment of the present invention, the torque of the light source rotating motor and the angle rotating motor is zeroed, the light source rotating motor is controlled to drive the light source to rotate the Brewster angle of 45° in the first direction, and the angle rotating motor is controlled along the first direction with a preset step length. One direction drives the light source to rotate 90° Brewster's angle in the first direction, and collects the spectrum detection data every time the angle rotation motor rotates by a preset step, and resets the torque of the light source rotation motor and the angle rotation motor. Zero, complete the spectrum detection data collection in the first direction; then, control the light source rotating motor to drive the light source to rotate 45° Brewster angle in the second direction, and control the angle rotating motor to drive the light source to rotate in the second direction with a preset step length The Brewster angle of 90°, and every time the angle rotating motor rotates with a preset step length, the spectrum detection data is collected once, and the torque of the light source rotating motor and the angle rotating motor are reset to zero to complete the second direction of spectrum detection Data collection can realize automatic control of the motion state of the spectrometer, thereby realizing automatic detection of the sample's spectrum detection data, with a high degree of intelligence.

It should be understood that the size of the sequence number of each step in the foregoing embodiment does not mean the order of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

Example 7

As shown in FIG. 8, in this embodiment, the controller 5 of any one of the second to the fifth embodiments includes a software program system architecture for executing the motion control method in the sixth embodiment, and the controller 5 includes:

The initialization module 701 is used to initialize the spectrometer and reset the torque of the light source rotating motor and the angle rotating motor to zero;

The first motor control module 702 is configured to control the light source rotating motor to rotate 45° in a first direction, and the light source rotating table drives the light source to rotate at a Brewster angle of 45° in the first direction;

The second motor control module 703 is used to control the angle rotating motor to rotate 90° in the first direction with a preset step length, and the angle rotating table drives the light source to rotate 90° in the first direction. Angle, and collect spectrum detection data once every time the angle rotating motor rotates by a preset step;

The first reset module 704 is configured to reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the spectrum detection data collection in the first direction;

The third motor control module 705 is configured to control the light source rotating motor to rotate 45° in the second direction, and the light source rotating table drives the light source to rotate the Brewster angle of 45° in the second direction;

The fourth motor control module 706 is used to control the angle rotating motor to rotate 90° in the second direction with a preset step length, and the angle rotating table drives the light source to rotate 90° in the second direction. Angle, and collect spectrum detection data once every time the angle rotating motor rotates by a preset step;

The second reset module 707 is configured to reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the second direction spectral detection data collection.

In a specific application, the modules included in the system software architecture of the controller may be software program modules in the controller or the processor.

In an embodiment, the initialization module is specifically configured to:

Initialize the spectrometer;

Set the size of the light source drive current;

The torque of the light source rotating electric machine and the angle rotating electric machine is reset to zero.

In an embodiment, the second motor control module is specifically used for:

Controlling the angle rotating motor to rotate in a first direction with a preset step length, and driving the light source to rotate in the first direction through the angle rotating table;

Judging whether the angle rotating motor rotates by a preset step length;

If the angle rotating motor rotates by a preset step length, collecting spectrum detection data;

If the angle rotating motor does not rotate by the preset step length, return to the step of determining whether the angle rotating motor rotates by the preset step length;

Judging whether the angle rotating motor has rotated 90°;

If the angle rotating motor has rotated 90°, then proceed to reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the step of collecting the spectrum detection data in the first direction;

If the angle rotation motor has not rotated 90°, return to the step of judging whether the angle rotation motor has rotated 90°.

In an embodiment, the fourth motor control module is specifically configured to:

Controlling the angle rotating motor to rotate in a second direction with a preset step length, and driving the light source to rotate in the second direction through the angle rotating table;

Judging whether the angle rotating motor rotates by a preset step length;

If the angle rotating motor rotates by a preset step length, collecting spectrum detection data;

If the angle rotating motor does not rotate by the preset step length, return to the step of determining whether the angle rotating motor rotates by the preset step length;

Judging whether the angle rotating motor has rotated 90°;

If the angle rotating motor has rotated 90°, then proceed to reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the step of collecting the spectrum detection data in the second direction;

If the angle rotation motor has not rotated 90°, return to the step of judging whether the angle rotation motor has rotated 90°.

Example 8

As shown in FIG. 9, in this embodiment, the spectrometer 100 further includes: a memory 8 communicatively connected with the controller 5, and a computer program stored in the memory 8 and running on the controller 5, such as Motion control program. When the controller 5 executes the computer program, the steps in the foregoing motion control method embodiments are implemented, such as steps S601 to S607 shown in FIG. 9. Alternatively, when the controller 5 executes the computer program, the functions of the modules in the foregoing device embodiments, for example, the functions of the modules 701 to 707 shown in FIG. 8 are realized.

Exemplarily, the computer program may be divided into one or more modules, and the one or more modules are stored in the memory 8 and executed by the controller 5 to complete the present invention. The one or more modules may be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program in the controller 5. For example, the computer program can be divided into an initialization module, a first motor control module, a second motor control module, a first reset module, a third motor control module, a fourth motor control module, and a second reset module. The functions are as follows:

An initialization module, which is used to initialize the spectrometer and reset the torque of the light source rotating motor and the angle rotating motor to zero;

The first motor control module is configured to control the light source rotating motor to rotate 45° in a first direction, and the light source rotating table drives the light source to rotate 45° in the first direction with a Brewster angle;

The second motor control module is used to control the angle rotating motor to rotate 90° in the first direction with a preset step length, and the angle rotating table drives the light source to rotate 90° Brewster angle in the first direction , And collect the spectrum detection data once every time the angle rotating motor rotates by a preset step;

The first reset module is used to reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the spectrum detection data collection in the first direction;

The third motor control module is configured to control the light source rotating motor to rotate 45° in the second direction, and the light source rotating table drives the light source to rotate 45° Brewster's angle in the second direction;

The fourth motor control module is used to control the angle rotating motor to rotate 90° in the second direction with a preset step length, and the angle rotating table drives the light source to rotate 90° Brewster angle in the second direction , And collect the spectrum detection data once every time the angle rotating motor rotates by a preset step;

The second reset module is used to reset the torque of the light source rotating motor and the angle rotating motor to zero, and complete the spectrum detection data collection in the second direction.

The spectrometer may include, but is not limited to, a controller 5 and a memory 8. Those skilled in the art can understand that FIG. 9 is only an example of the spectrometer 100, and does not constitute a limitation on the controller 5. It may include more or fewer components than shown in the figure, or combine some components, or different components, For example, the controller may also include input and output devices, network access devices, buses, and so on.

The so-called controller 5 may be a central processing unit (Central Processing Unit, CPU), other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), Ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 8 may be an internal storage unit of the controller 5, such as a hard disk or a memory of the controller 5. The memory 8 may also be an external storage device of the controller 5, such as a plug-in hard disk equipped on the controller 5, a smart memory card (Smart Media Card, SMC), and a Secure Digital (SD) Card, Flash Card, etc. Further, the memory 8 may also include both an internal storage unit of the controller 5 and an external storage device. The memory 8 is used to store the computer program and other programs and data required by the controller. The memory 8 can also be used to temporarily store data that has been output or will be output.

Those skilled in the art can clearly understand that, for convenience and conciseness of description, only the above-mentioned division of each functional unit and module is used as an example for illustration. In practical applications, the above-mentioned functions may be allocated by different functional units, Module completion means that the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit may use hardware It can also be implemented in the form of software functional units. In addition, the specific names of the functional units and modules are only for the purpose of distinguishing each other, and are not intended to limit the protection scope of the present application. For the specific working processes of the units and modules in the above system, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the above embodiments, the description of each embodiment has its own emphasis. For a part that is not detailed or recorded in an embodiment, you can refer to the related descriptions of other embodiments.

Those of ordinary skill in the art may realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

In the embodiments provided by the present invention, it should be understood that the disclosed device/controller and method may be implemented in other ways. For example, the device/controller embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units. Or components can be combined or integrated into another system, or some features can be omitted or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software function unit.

If the integrated module is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiments and methods, and can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the program is executed by the processor, it can implement the steps of the foregoing method embodiments. Wherein, the computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file, or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electrical carrier signals, telecommunications signals and software distribution media, etc. It should be noted that the content contained in the computer-readable medium can be appropriately added or deleted according to the requirements of the legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to the legislation and patent practice, the computer-readable medium Does not include electrical carrier signals and telecommunication signals.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still implement the foregoing The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in Within the protection scope of the present invention.

Claims (10)

1. A controller for a spectrometer, characterized in that the spectrometer includes a main housing and a sample holder, a light source, a light receiver, a spectrum detector, a controller, and a touch screen integratedly arranged on the main housing. The controller includes an integrated processor, a light source drive circuit, a data processing circuit and a display screen drive circuit;

   The sample holder is fixed to the main housing, the light receiver is communicatively connected with the spectrum detector through an optical fiber, the light source driving circuit is electrically connected to the processor and the light source, and the data processing circuit Electrically connected to the processor and the spectrum detector, and the display screen drive circuit is electrically connected to the processor and the touch screen;

   The sample rack is used to carry samples to be tested;

   The touch screen is used to input touch control instructions;

   The processor is configured to control the light source driving circuit to drive the light source to emit light to the sample according to the touch control instruction, and to excite the sample to reflect or emit light;

   The light receiver is used to receive light reflected or emitted by the sample and coupled to the optical fiber;

   The spectrum detector is used to obtain the light reflected or emitted by the sample through the optical fiber, and perform sampling and photoelectric conversion to obtain spectrum detection data and send it to the data processing circuit;

   The data processing circuit is used to perform signal processing and data conversion on the spectrum detection data and send it to the processor;

   The processor is further configured to analyze and process the spectrum detection data after signal processing and data conversion according to the touch control instruction to obtain spectrum data;

   The processor is further configured to control the display screen driving circuit to drive the touch display screen to display the spectral data according to the touch control instruction.
2. The controller of the spectrometer according to claim 1, wherein the spectrometer further comprises a light source rotating motor, a light source rotating table, an angle rotating motor and an angle rotating table, and the controller further comprises a motor drive circuit;

   The motor drive circuit is electrically connected to the light source rotating motor, the angle rotating motor, and the processor, and the light source rotating table is mechanically connected to the light source rotating motor and the light source;

   The light source rotating table is fixed to the angle rotating table, and the sample holder is arranged through the light source rotating table and the angle rotating table, so that the light source rotating table and the angle rotating table can rotate around the sample holder ；

   The processor is further configured to control the motor drive circuit to drive the light source rotating motor and the angle rotating motor to rotate according to the touch control instruction.
3. 3. The controller of the spectrometer according to claim 2, wherein the motor drive circuit includes a motor drive control circuit, an H bridge drive circuit, and a monitoring protection circuit;

   The motor drive control circuit is electrically connected to the processor, the H bridge drive circuit, and the monitoring protection circuit, and the H bridge drive protection circuit is connected to the monitoring protection circuit, the light source rotating motor, and the angle The rotating electric machine is electrically connected, and the monitoring and protection circuit is electrically connected to the processor;

   The processor is also used to control the monitoring and protection circuit to monitor the voltage signal output from the motor drive control circuit to the H-bridge drive circuit, and to monitor the H-bridge drive circuit output to the light source rotating motor and the The three-phase current signal of the angle rotating motor is used for overvoltage protection and overcurrent protection of the light source rotating motor and the angle rotating motor.
4. The controller of the spectrometer according to claim 3, wherein the monitoring protection circuit is a motor state monitor.
5. The controller of the spectrometer according to claim 1, wherein the spectrometer further comprises a USB interface, and the controller further comprises a USB drive circuit;

   The USB drive circuit is electrically connected with the USB interface and the processor, and the USB interface is communicatively connected with the client through a USB data line;

   The client is used to input control instructions;

   The processor is further configured to control the USB drive circuit to drive the USB interface to communicate with the client to obtain the control instruction;

   The processor is further configured to control the light source driving circuit to drive the light source to emit light to the sample according to the control instruction, and to excite the sample to reflect or emit light;

   The processor is further configured to analyze and process the spectrum detection data after signal processing and data conversion according to the control instruction to obtain spectrum data;

   The processor is further configured to control the display screen drive circuit to drive the touch screen display to display the spectral data according to the control instruction.
6. The controller of the spectrometer according to claim 1, wherein the light source drive circuit includes a light source drive interface, a V/I conversion circuit, a digital-to-analog conversion circuit, a voltage detection circuit, a current detection circuit, and a first analog-to-digital conversion circuit. Circuit

   The light source driving interface is electrically connected to the light source, the V/I conversion circuit, the voltage detection circuit, and the current detection circuit, and the digital-to-analog conversion circuit is electrically connected to the V/I conversion circuit and the processing The first analog-to-digital conversion circuit is electrically connected to the voltage detection circuit, the current detection circuit, and the processor;

   The processor is further configured to send a light source driving instruction to the digital-to-analog conversion circuit, and a voltage detection instruction and a current detection instruction to the first analog-to-digital conversion circuit according to the touch control instruction;

   The digital-to-analog conversion circuit is used to convert the light source driving command into a light source driving voltage signal;

   The V/I conversion circuit is used to convert the light source driving voltage signal into a light source driving current signal, and output to the light source through the light source driving interface, so as to drive the light source to emit light to the sample;

   The voltage detection circuit is used to obtain the operating voltage signal of the light source through the light source drive interface;

   The current detection circuit is used to obtain the working current signal of the light source through the light source driving interface;

   The first analog-to-digital conversion circuit is configured to convert the working voltage signal into a voltage digital signal according to the voltage detection instruction and send it to the processor, and convert the working current signal into a current according to the current detection instruction And send a digital signal to the processor;

   The processor is further configured to detect the size of the operating voltage of the light source according to the digital voltage signal, detect the size of the operating current of the light source according to the digital current signal, and according to the size of the operating voltage and the The magnitude of the working current feedback controls the magnitude of the current of the light source driving current signal.
7. 7. The controller of the spectrometer according to claim 6, further comprising a temperature and humidity detection circuit;

   The temperature and humidity detection circuit is electrically connected to the first analog-to-digital conversion circuit;

   The processor is further configured to send a temperature and humidity detection instruction to the first analog-to-digital conversion circuit according to the touch control instruction;

   The temperature and humidity detection circuit is used to detect temperature data and humidity data of the environment where the controller is located;

   The first analog-to-digital conversion circuit is further configured to convert the temperature data into digital temperature data according to the temperature and humidity detection instruction, and convert the humidity data into digital humidity data and send them to the processor;

   The processor is further configured to obtain the temperature of the environment where the controller is located according to the digital temperature data, obtain the humidity of the environment where the controller is located according to the digital humidity data, and obtain the humidity of the environment where the controller is located according to the temperature and the temperature. The humidity controls the working state of the spectrometer.
8. 4. The controller of the spectrometer according to claim 1, wherein the data processing circuit comprises a signal processing circuit and a second analog-to-digital conversion circuit;

   The second analog-to-digital conversion circuit is electrically connected to the signal processing circuit and the processor;

   The signal processing circuit is used to perform signal processing on the spectrum detection data;

   The second analog-to-digital conversion circuit is used to perform analog-to-digital conversion on the spectrum detection data after signal processing and send it to the processor.
9. The controller of the spectrometer according to claim 1, wherein the processor is an ARM processor.
10. A spectrometer, characterized by comprising the controller according to any one of claims 1-9.

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