Portable Visible/near-infrared Spectrum Detection Device

Abstract

The invention discloses a portable visible/near-infrared spectrum detection device, comprising a housing, a bottom plate, a screen support frame, a battery part on which a microprocessor is arranged, a detection part and a switch part, wherein the battery part, the detection part and the switch part are arranged in the housing; and the detection part comprises a spectrometer, a light source, a collimating mirror and the microprocessor. The device has the characteristics of rapidness, no damage and portability, and can realize rapid detection and early warning of food quality.

Claims

1. A portable visible/near-infrared spectrum detection device, comprising a housing (1), a bottom plate (9), a screen supporting frame (2), a battery part, a detection part and a switch part; wherein the bottom end and the top end of the housing (1) are fixedly connected to the bottom plate (9) and the screen supporting frame (2) respectively, the battery part and the detection part are arranged in the housing (1); the switch part is arranged on the inner wall of the top surface of the housing (1); the battery part is electrically connected to the switch part; and the switch part is electrically connected to the detection part; the detection part comprises a spectrometer (12), a light source (10), a collimating mirror (13) and a microprocessor (16), wherein the spectrometer (12) is arranged on the bottom plate (9), the collimating mirror (13) is arranged on the left side of the spectrometer (12), the light source (10) is arranged above the collimating mirror (13), a light source interface (1.3) is formed in the side surface, close to the light source (10), of the housing (1); a spectrometer interface (1.2) is formed below the light source interface (1.3); the spectrometer interface (1.2), the collimating mirror (13) and the spectrometer (12) are electrically connected; the light source interface (1.3) is electrically connected to the light source (10), and the light source (10) is electrically connected to the collimating mirror (13); a microprocessor (16) is arranged above the battery part; the microprocessor (16) is electrically connected to the spectrometer (12); and an integrating sphere module, an optical fiber module and a transmission module are externally connected to the spectrometer interface (1.2); and an embedded type flat plate (3) which is electrically connected to the switch part and the microprocessor (16) separately is detachably connected on the screen supporting frame (2).

2. The portable visible/near-infrared spectrum detection device according to claim 1, wherein two through holes are formed in the left side surface of the housing, and the spectrometer interface (1.2) and the light source interface (1.3) are separately embedded into the two through holes.

3. The portable visible/near-infrared spectrum detection device according to claim 1, wherein the battery part comprises a battery bin (14) and a storage battery (15), the battery bin (14) is fixedly connected on the bottom plate (9), and the storage battery (15) is positioned in the battery bin (14).

4. The portable visible/near-infrared spectrum detection device according to claim 3, wherein the switch part comprises a power supply switch (5), a system switch (6) and a light source switch (7), a strip-shaped hole and three through holes are formed in the screen supporting frame (2); the power supply switch (5), the system switch (6) and the light source switch (7) are detachably connected in three through holes in sequence; and an electric quantity display screen (8), which is connected to the storage battery (15) electrically, is connected in the strip-shaped hole in an inserting mode.

5. The portable visible/near-infrared spectrum detection device according to claim 4, wherein the storage battery (15) is electrically connected to the power supply switch (5), the system switch (6) and the light source switch (7) separately; the power supply switch (5) is electrically connected to the embedded type flat plate (3); the system switch (6) is electrically connected to the spectrometer (12) and the microprocessor (16), and the light source switch (7) is electrically connected to the light source (10).

6. The portable visible/near-infrared spectrum detection device according to claim 1, wherein the bottom surface of the spectrometer (12) is fixedly connected to a spectrometer fixing frame (11) which is fixedly connected onto the bottom plate (9).

7. The portable visible/near-infrared spectrum detection device according to claim 1, wherein a heat dissipation hole (1.1) is formed in the rear side surface of the housing (1), and a charging interface (1.4) is arranged at one side, away from the light source interface (1.3), of the housing (1).

8. The portable visible/near-infrared spectrum detection device according to claim 1, wherein the light source (10) is a halogen lamp with a measuring range of 360-2400 nm.

9. The portable visible/near-infrared spectrum detection device according to claim 1, wherein the spectrometer (12) has a wavelength range of 345-1032 nm, a signal-to-noise ratio of 300:1, and a spectral resolution of 0.15-0.22 nm.

10. The portable visible/near-infrared spectrum detection device according to claim 1, wherein a screen adapter plate (4) is arranged on the screen supporting frame (2) in an inclined mode, and the two side surfaces of the housing (1) are fixedly connected to handles (17).

Description

BRIEF DESCRIPTION OF THE FIGURES

[0022] In order to explain the embodiments of the invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, without creative labor, other drawings can be obtained from these drawings.

[0023] FIG. 1 is a schematic structural diagram of the portable visible/near-infrared spectrum detection device of the invention.

[0024] FIG. 2 is a top view of FIG. 1.

[0025] FIG. 3 is an axonometric drawing of the housing of the invention.

[0026] FIG. 4 is an axonometric drawing of the screen supporting frame of the invention.

[0027] FIG. 5 is an axonometric drawing of the bottom plate of the invention.

[0028] FIG. 6 is an axonometric drawing of the battery bin of the invention.

[0029] FIG. 7 is an axonometric drawing of the spectrometer of the invention.

[0030] where, 1. housing; 1.1. heat dissipation hole; 1.2. spectrometer interface; 1.3. light source interface; 1.4. charging interface; 2. screen supporting frame; 3. embedded type flat plate; 4. screen adapter plate; 5. power supply switch; 6. system switch; 7. light source switch; 8. electric quantity display screen; 9. bottom plate; 10. light source, 11. spectrometer fixing frame; 12. spectrometer; 13. collimating mirror; 14. battery bin; 15. storage battery; 16. microprocessor; and 17. handle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] The technical solutions in the embodiments of the invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the invention.

[0032] In order to make the above objectives, features and advantages of the invention more obvious and understandable, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment I

[0033] Refer to FIG. 1 to FIG. 7, the invention provides a portable visible/near-infrared spectrum detection device which includes a housing 1, a bottom plate 9, a screen supporting frame 2, a battery part, a detection part and a switch part; the bottom end and the top end of the housing 1 are fixedly connected to the bottom plate 9 and the screen supporting frame 2 respectively, the battery part and the detection part are arranged in the housing 1; the switch part is arranged on the inner wall of the top surface of the housing 1; the battery part is electrically connected to the switch part; and the switch part is electrically connected to the detection part;

[0034] the detection part comprises a spectrometer 12, a light source 10, a collimating mirror 13 and a microprocessor 16, wherein the spectrometer 12 is arranged on the bottom plate 9, the collimating mirror 13 is arranged on the left side of the spectrometer 12, the light source 10 is arranged above the collimating mirror 13, a light source interface 1.3 is formed in the side surface, close to the light source 10, of the housing 1; a spectrometer interface 1.2 is formed below the light source interface 1.3; the spectrometer interface 1.2, the collimating mirror 13 and the spectrometer 12 are electrically connected; the light source interface 1.3 is electrically connected to the light source 10, and the light source 10 is electrically connected to the collimating mirror 13; a microprocessor 16 is arranged above the battery part; the microprocessor 16 is electrically connected to the spectrometer 12; and an integrating sphere module, an optical fiber module and a transmission module are externally connected to the spectrometer interface 1.2;

[0035] an embedded type flat plate 3 which is electrically connected to the switch part and the microprocessor 16 separately is detachably connected on the screen supporting frame 2.

[0036] In a further preferred solution, two through holes are formed in the left side surface of the housing, and the spectrometer interface 1.2 and the light source interface 1.3 are separately embedded into the two through holes.

[0037] In a further preferred solution, the battery part includes a battery bin 14 and a storage battery 15, where the battery bin 14 is fixedly connected on the bottom plate 9, and the storage battery 15 is positioned in the battery bin 14.

[0038] In a further preferred solution, the switch part includes a power supply switch 5, a system switch 6 and a light source switch 7, where a strip-shaped hole and three through holes are formed in the screen supporting frame 2; the power supply switch 5, the system switch 6 and the light source switch 7 are detachably connected in three through holes in sequence; and an electric quantity display screen 8, which is connected to the storage battery 15 electrically, is connected in the strip-shaped hole in an inserting mode.

[0039] In a further preferred solution, the storage battery 15 is electrically connected to the power supply switch 5, the system switch 6 and the light source switch 7 separately; the power supply switch 5 is electrically connected to the embedded type flat plate 3; the system switch 6 is electrically connected to the spectrometer 12 and the microprocessor 16, and the light source switch 7 is electrically connected to the light source 10.

[0040] In a further preferred solution, the bottom surface of the spectrometer is fixedly connected to a spectrometer fixing frame 11 which is fixedly connected onto the bottom plate 9.

[0041] In a further preferred solution, a heat dissipation hole 1.1 is formed in the rear side surface of the housing 1, and a charging interface 1.4 is arranged at one side, away from the light source interface 1.3, of the housing 1.

[0042] In a further preferred solution, the light source 10 is a halogen lamp with a measuring range of 360-2400 nm, and is equipped with an integrated fan for keeping the light source cool and stable.

[0043] In a further preferred solution, the spectrometer 12 has a wavelength range of 345-1032 nm capable of covering the visible/near-infrared spectral region, a signal-to-noise ratio of 300:1, and a spectral resolution of 0.15-0.22 nm to achieve good scanned spectrum information, adopts a linear array silicon-based detector with a spectral wavelength range covering visible and short near-infrared spectrum wavebands, is low in price, is high in detection precision, and can effectively detect food quality characteristics and the high signal-to-noise ratio increases stability and flexibility of spectral data, and the high resolution provides abundant spectral information.

[0044] In a further preferred solution, a screen adapter plate 4 is arranged on the screen supporting frame 2 in an inclined mode, and the two side surfaces of the housing 1 are fixedly connected to handles 17.

[0045] The working principle of the portable visible/near-infrared detection device is as follows:

[0046] The integrating sphere or optical fiber is connected to the spectrometer interface 1.2, and the other end of the integrating sphere or optical fiber is connected to the light source interface 1.3; the power switch 5, system switch 6 and light source switch 7 are started simultaneously, so that the storage battery 15 and the embedded type flat plate 3 can be started; power is supplied to the spectrometer 12, the microprocessor 16 and the light source 10 through the storage battery 15; the collimating mirror 13 is electrically connected to the spectrometer 12 through an optical fiber, the light source interface 1.3 is electrically connected to the light source 10 through an optical fiber, the light source 10 and the collimating mirror 13 are electrically connected through an optical fiber, the microprocessor 16 is arranged above the battery part, the microprocessor 16 and the spectrometer 12 are electrically connected through a cable, and the embedded type flat plate 3 is electrically connected to the microprocessor 16 and the storage battery 15 through cables, and therefore, by connecting the integrating sphere or directly between the light source interface 1.3 and the spectrometer interface 1.2, the food can be detected through the integrating sphere. The visible/near-infrared light of food forms a loop among the light source 10, the collimating lens 13, the spectrometer 12 and the integrating sphere, that is, the spectral signal is collected by the collimating lens 13, and then transmitted to the spectrometer 12, processed by the microprocessor 16, and transmitted to the embedded type flat plate 3, the wavelength range of the spectrometer 12 is 345-1032 nm, which can effectively cover the visible/near-infrared spectrum; the signal-to-noise ratio of the spectrometer 12 is 300:1, the spectral resolution is 0.15-0.22 nm, the scanned spectrum information is good, the light source 10 is a halogen lamp with a measurement range of 360-2400 nm, equipped with an integrated fan, which can keep the light source 10 cool and stable.

Embodiment II

[0047] The difference between this Embodiment and the Embodiment I is that the device of this Embodiment is equipped with a wireless network transmission function. According to the developed software system, it realizes spectral data collection, spectral data transmission and food quality detection result feedback, where the spectral data and the detection results are transmitted to the cloud end through the wireless function, and enterprises and regulatory agencies can monitor food quality in real time on a regulatory platform. In addition, in this Embodiment, a transmission part is connected between the light source 10 and the spectrometer 12, and a light intensity attenuator is additionally arranged between the light source 10 and the transmission part, which is more conducive to the accuracy of detection.

[0048] In the description of the invention, it is to be understood that the orientation or position relationship indicated by the terms “longitudinal”, “transverse”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc. is based on the orientation or position relationship shown in the drawings, and is merely for convenience of description of the invention. It is not intended or implied that the device or component that is referred to has a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention.

[0049] The above-mentioned embodiments only describe the preferred mode of the invention, and do not limit the scope of the invention. Without departing from the design spirit of the invention, variations and improvements, made to the technical solutions of the invention by those of ordinary skill in the art shall fall within the protection scope determined by the claims of the invention.