Solid state fermentation multi-parameter monitoring system based on array sensor and near infrared

Abstract

The utility model belongs to the field of solid-state fermentation monitoring, and relates to a solid-state fermentation multi-parameter monitoring system based on array sensors and near infrared rays. Comprising a data concentrator, a field monitoring machine, a near-infrared light source, a Y-shaped optical fiber, a detector, an upper computer, a support fixing device and a fixing rod. The support fixing device is movably connected with the fixing rod, a sensor support is arranged on the surface of the support fixing device, and a wireless sensor is arranged on the sensor support and electrically connected with the data concentrator. The data concentrator is electrically connected with the on-site monitoring machine, and the on-site monitoring machine is electrically connected with the upper computer to realize signal transmission and control; the fixing rod is of a hollow structure and is provided with a window. One end of the Y-shaped optical fiber is arranged at the window, and the window is packaged by quartz; the other end of the Y-shaped optical fiber is respectively connected with a near infrared light source and a detector; and the detector is electrically connected with the upper computer. The system can monitor and analyze the fermentation data of the fermented grains in the pit in real time in a complete period, and is convenient to operate and wide in application prospect.

Description

Technical Field

[0001] The utility model belongs to the field of solid-state fermentation monitoring, and specifically relates to a solid-state fermentation multi-parameter monitoring system based on array sensors and near infrared. Background Art

[0002] Chinese liquor adopts a solid-state brewing process, which is to make various starch-rich grains into fermented grains and put them into a closed cellar for fermentation for several months, and then distill the fermented grains to extract alcohol. As the saying goes, "fragrance depends on fermentation", fermentation is an extremely important step in the entire liquor production process. The quality of fermentation determines the taste and quality of the liquor.

[0003] At present, wineries can only rely on manual experience to judge the degree of fermentation of mash in the cellar. Some wineries will insert a temperature measuring rod to monitor the temperature at a certain location in the cellar, or use chemical methods to test the mash after manual timed sampling to detect the physical and chemical indicators of the mash to determine the fermentation status of the mash. However, the cellar is huge, and the environmental parameters monitored at a single point are not representative and effective. Manual timed sampling is time-consuming and laborious, and it cannot provide real-time online monitoring to provide front-line production workers with the fermentation status of the mash, and it will destroy the fermentation environment inside the cellar and affect the fermentation status of the mash. Utility Model Content

[0004] In view of the shortcomings and deficiencies in the prior art, the main purpose of the utility model is to propose a solid-state fermentation multi-parameter monitoring system based on array sensors and near-infrared. Through the setting and connection of corresponding structures, the system can remotely collect and transmit data on the temperature and humidity parameters of the mash at multiple points in the solid-state fermentation cellar, and further combine near-infrared spectroscopy technology to carry out real-time online monitoring of important physical and chemical parameters of the fermented mash during fermentation, thereby achieving the purpose of real-time monitoring and analysis of the whole cycle of the cellar mash fermentation data.

[0005] To achieve the above objectives, the technical solution of the utility model is as follows:

[0006] A multi-parameter monitoring system for solid-state fermentation based on array sensors and near infrared comprises: a monitoring auxiliary support, a data concentrator, a field monitoring machine, a near infrared light source, a Y-shaped optical fiber, a detector and a host computer;

[0007] The monitoring auxiliary bracket includes a sensor bracket, a wireless sensor, a bracket fixing device and a fixing rod; the sensor bracket is provided with M, where M is a positive integer;

[0008] The sensor bracket is installed on the bracket fixing device; the bracket fixing device is movably connected to the fixing rod and can move freely from top to bottom along the fixing rod; the bracket fixing device is provided with T, where T is a positive integer;

[0009] A wireless sensor is provided on the sensor bracket, and N wireless sensors are provided, N is a positive integer, and are evenly installed on the sensor bracket; the wireless sensor is electrically connected to the data concentrator, and an electromagnetic wave signal is sent to the data concentrator through the wireless sensor; the data concentrator is electrically connected to the on-site monitoring machine, and the on-site monitoring machine is electrically connected to the host machine to realize signal transmission and control;

[0010] The fixing rod is a hollow structure, and L windows are opened on the fixing rod, where L is a positive integer; one end of the Y-type optical fiber is arranged at the window, and the window is packaged by quartz; the other end of the Y-type optical fiber is respectively connected to a near-infrared light source and a detector; and the detector is electrically connected to a host computer.

[0011] Furthermore, the bracket fixing devices are provided with three, distributed from top to bottom along the fixing rod; each bracket fixing device is correspondingly connected to four sensor brackets, forming a cross shape;

[0012] Furthermore, the support fixing device is a hollow annular device, and its diameter is larger than the diameter of the fixing rod.

[0013] Furthermore, the wireless sensor is a wireless BND-WSD temperature and humidity sensor, and the array is installed on the sensor bracket; the wireless BND-WSD temperature and humidity sensor collects temperature and humidity data, and sends it to the data concentrator via wireless transmission, which is used to monitor the temperature and humidity changes at multiple points in the cellar during the entire fermentation cycle, and realize two-way interaction of data between the wireless sensor and the data concentrator.

[0014] Furthermore, the data concentrator is electrically connected to the on-site monitoring machine so as to transmit the temperature and humidity data to the on-site monitoring machine and display them on the screen in real time.

[0015] Furthermore, the outer surface of the wireless sensor is fully enclosed by a silicone material, and a lithium battery is installed inside each wireless sensor for powering the wireless sensor.

[0016] Furthermore, the Y-shaped optical fiber is inserted from the inside of the fixed rod, arranged at the window, and attached to the quartz surface at the front end of the window; wherein the quartz encapsulates and protects the end of the optical fiber, can control the spectrum collection distance, and increase the spectrum collection area for real-time monitoring of changes in the reducing sugar, starch, and total acid content of the mash in the cellar.

[0017] The beneficial technical effects of the utility model are:

[0018] The utility model provides a multi-parameter monitoring system for solid-state fermentation based on array sensors and near infrared. The multi-array sensors realize the full-cycle multi-directional tracking and collection of temperature and humidity of the fermented mash inside the cellar. The array sensors are networked in a wireless network manner, which is easy to install, has a long communication distance, low power consumption, and strong anti-interference ability. At the same time, the fermented mash in the cellar will produce sedimentation due to gravity and the growth and metabolism of microorganisms during fermentation, and traditional monitoring devices cannot accurately monitor it. The utility model designs the bracket fixing device as a ring structure, which can move freely along the fixed rod, thereby driving the sensor bracket and the sensor to move up and down, so as to settle together with the fermented mash, thereby improving the accuracy of detection.

[0019] On the other hand, the utility model is also provided with a window and encapsulated with quartz. A near-infrared Y-type optical fiber is arranged at the window and attached to the quartz surface at the front end of the window to facilitate cellar detection. In addition, the optical fiber end is encapsulated and protected by quartz, so that the spectrum collection distance can be controlled, and the spectrum collection area can be increased for real-time monitoring of changes in the reducing sugar, starch, and total acid content of the mash in the cellar, avoiding manual timed sampling and saving labor, and being able to perform real-time data collection and visualization of multiple parameters of the mash throughout the fermentation cycle without destroying the fermentation environment inside the cellar. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a device diagram of a solid-state fermentation multi-parameter monitoring system based on array sensors and near infrared according to the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the monitoring auxiliary support structure in the illustrated embodiment;

[0022] Figure 3 for Figure 1 Schematic diagram of near infrared spectrum collection in the illustrated embodiment;

[0023] Figure numerals: 1-monitoring auxiliary bracket, 2-data concentrator, 3-field monitoring machine, 4-near-infrared light source, 5-Y-type optical fiber, 6-detector, 7-host computer; 1-1-sensor bracket, 1-2-wireless sensor, 1-3-bracket fixing device, 1-4-fixing rod, 1-5-window. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] like Figure 1 The multi-parameter monitoring system of solid-state fermentation based on array sensor and near infrared of this embodiment includes a monitoring auxiliary support 1, a data concentrator 2, a field monitoring machine 3, a near infrared light source 4, a Y-type optical fiber 5, a detector 6, and a host computer 7;

[0027] The monitoring auxiliary support 1 is arranged inside the cellar, and its structure is as follows: Figure 2 As shown: the main structure includes a sensor bracket 1-1, a wireless sensor 1-2, a ring (bracket fixing device) 1-3, and a fixed rod 1-4; wherein the fixed rod 1-4 is vertically fixed inside the cellar; the sensor brackets 1-1 are arranged in groups of four on the ring 1-3 in a cross-shaped manner to form a cross ring bracket; there are three rings 1-3, that is, three cross ring brackets are formed, all of which are sleeved on the fixed rod 1-4 through the ring to form an upper, middle and lower three-layer cross ring bracket; wherein the wireless sensors 1-2 are evenly installed on the sensor bracket 1-1, and each cross ring bracket is provided with 22 wireless sensors 1-2; the wireless sensor 1-2 is electrically connected to the data concentrator 2, and an electromagnetic wave signal is sent to the data concentrator 2 through the wireless sensor 1-2; the data concentrator 2 is electrically connected to the on-site monitoring machine 3, and the on-site monitoring machine 3 is electrically connected to the host computer 7 to realize signal transmission and control;

[0028] At the same time, three windows 1-5 are opened on the fixed rod 1-4, and the windows 1-5 are evenly distributed from top to bottom along the fixed rod 1-1; the Y-type optical fiber 5 penetrates from the inside of the fixed rod 1-4, is arranged at the window 1-5, and is attached to the quartz surface at the front end of the window 1-5; the other end of the Y-type optical fiber is electrically connected to the near-infrared light source 4 and the detector 6 respectively.

[0029] The data collection work of array sensors and near-infrared solid-state fermentation multi-parameter monitoring devices is as follows: Figure 1-3 As shown, when the mash is filled in the cellar, the cross ring brackets are respectively inserted from the top of the fixed rods 1-4 at the required monitoring height to form upper, middle and lower layers; the fermented mash will settle during the solid-state fermentation process, and the cross ring bracket movably connected to the fixed rods will settle together with the mash to improve the accuracy of the detection.

[0030] The wireless sensor 1-2 is a wireless BND-WSD temperature and humidity sensor, which converts the collected data into digital-to-analog data and then sends an electromagnetic wave signal to the data concentrator 2, so as to realize two-way data interaction between the wireless sensor 1-2 and the data concentrator 2; wherein the data concentrator 2 is electrically connected to the on-site monitoring machine 3 via the RS485 bus carrying the ModBus protocol to realize signal transmission and control, and at the same time transmits the temperature and humidity data to the cloud server via the 4G transmission method; the Y-type optical fiber 5 can realize the near-infrared spectrum acquisition in the cellar; the near-infrared light source 4 emits near-infrared light through the quartz at the window 1-5 to irradiate the monitored mash, and the diffuse reflected light returns to the detector 6 through the output optical fiber; the detector 6 is electrically connected to the host computer 7 to process the collected spectral signal on the host computer 7, and display it as the specific content of physical and chemical indicators, and at the same time, the host computer 7 is electrically connected to the on-site monitoring machine 3 to realize data transmission, and the host computer 7 can monitor the temperature and humidity data by connecting to the cloud server through the network.

[0031] The solid-state fermentation multi-parameter monitoring system based on array sensors and near-infrared in the embodiment of the utility model has a simple structure and is easy to operate. It uses wireless sensors combined with near-infrared spectroscopy technology to perform full-cycle real-time monitoring and analysis of multiple parameters of the mash fermentation in the cellar, and understands the changing patterns of the mash temperature and humidity and important physical and chemical indicators such as reducing sugar content, starch content and total acid content during the fermentation process at a quantitative level, providing a theoretical basis for building an excellent fermentation system for solid-state fermentation.

[0032] Note: The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above embodiments, a person skilled in the art should understand that the present invention can still be modified or replaced by equivalents; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A multi-parameter monitoring system for solid-state fermentation based on array sensors and near infrared, characterized in that: The system comprises a monitoring auxiliary support (1), a data concentrator (2), a field monitoring machine (3), a near-infrared light source (4), a Y-shaped optical fiber (5), a detector (6) and a host computer (7); The monitoring auxiliary bracket (1) comprises a sensor bracket (1-1), a wireless sensor (1-2), a bracket fixing device (1-3) and a fixing rod (1-4); the sensor bracket (1-1) is provided with M, where M is a positive integer; The sensor bracket (1-1) is mounted on a bracket fixing device (1-3); the bracket fixing device (1-3) is movably connected to a fixing rod (1-4) and can freely move from top to bottom along the fixing rod (1-4); the bracket fixing device (1-3) is provided with T, where T is a positive integer; A wireless sensor (1-2) is provided on the sensor bracket (1-1), wherein N wireless sensors (1-2) are provided, N being a positive integer, and are evenly installed on the sensor bracket (1-1); the wireless sensor (1-2) is electrically connected to a data concentrator (2), and an electromagnetic wave signal is sent to the data concentrator (2) through the wireless sensor (1-2); the data concentrator (2) is electrically connected to an on-site monitoring machine (3), and the on-site monitoring machine (3) is electrically connected to an upper computer (7), thereby realizing signal transmission and control; The fixed rod (1-4) is a hollow structure, and L windows (1-5) are provided on the fixed rod (1-4), where L is a positive integer; one end of the Y-type optical fiber (5) is arranged at the window (1-5), and the window (1-5) is packaged by quartz; the other end of the Y-type optical fiber (5) is respectively connected to a near-infrared light source (4) and a detector (6); and the detector (6) is electrically connected to a host computer (7).

2. A solid-state fermentation multi-parameter monitoring system based on array sensor and near infrared according to claim 1, characterized in that: The bracket fixing devices (1-3) are provided with three and are distributed from top to bottom along the fixing rod (1-4); each bracket fixing device (1-3) is correspondingly connected to four sensor brackets (1-1), forming a cross shape.

3. A solid-state fermentation multi-parameter monitoring system based on array sensor and near infrared according to claim 1 or 2, characterized in that: The support fixing device (1-3) is a hollow annular device, the diameter of which is larger than the diameter of the fixing rod (1-4).

4. The solid-state fermentation multi-parameter monitoring system based on array sensor and near infrared according to claim 1, characterized in that: The wireless sensor (1-2) is a wireless BND-WSD temperature and humidity sensor, the array of which is mounted on a sensor bracket (1-1); the wireless BND-WSD temperature and humidity sensor collects temperature and humidity data, and sends it to a data concentrator (2) via wireless transmission, so as to monitor the temperature and humidity changes at multiple points in the entire fermentation cycle in the cellar, thereby realizing two-way data interaction between the wireless sensor (1-2) and the data concentrator (2).

5. The solid-state fermentation multi-parameter monitoring system based on array sensor and near infrared according to claim 1, characterized in that: The data concentrator (2) is electrically connected to the on-site monitoring machine (3) so as to transmit the temperature and humidity data to the on-site monitoring machine (3) and display them on the screen in real time.

6. The solid-state fermentation multi-parameter monitoring system based on array sensor and near infrared according to claim 1, characterized in that: The outer surface of the wireless sensor (1-2) is fully enclosed with a silica gel material, and a lithium battery is installed inside each wireless sensor (1-2) for powering the wireless sensor (1-2).

7. The solid-state fermentation multi-parameter monitoring system based on array sensor and near infrared according to claim 1, characterized in that: The Y-shaped optical fiber (5) penetrates into the interior of the fixing rod (1-4), is arranged at the window (1-5), and is attached to the quartz surface at the front end of the window (1-5).

Images