Two-in-one optical sensor with liquid turbidity and dust concentration detection functions

Abstract

The invention discloses a two-in-one optical sensor with a liquid turbidity and dust concentration detection function, which comprises a circuit board, and the circuit board is provided with a power supply, a power supply conversion module, a central processor module, a data interaction module, a data interaction interface, a light emission control module, a light emission module, a light receiving module and a signal processing module. The power supply is used for supplying power to the light emission control module and the signal processing module, and the data interaction interface is used for receiving a command of a client upper computer and sending a detection command to the data interaction module or outputting a final detection result to the client upper computer. And the data interaction module is used for converting the command and transmitting the converted command to the central processing unit module. The optical sensor integrates various modules, so that in the working process of the suction and mopping all-in-one machine, the mass concentration of tiny dust in gas and the cleanliness of liquid can be obtained by utilizing visible light or infrared light of a special wave band, and then the cleaning mode is adjusted, the cleaning efficiency is improved, and intelligentization is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical sensors, and in particular to a two-in-one optical sensor with the functions of detecting liquid turbidity and dust concentration. Background Art

[0002] In many fields of industrial production, environmental monitoring and scientific research, accurate detection of liquid turbidity and dust concentration is of vital importance. For example, in the process of industrial wastewater treatment, it is necessary to accurately grasp the situation of impurity particles contained in the liquid to evaluate the treatment effect and ensure that the discharge meets environmental protection standards; in air quality monitoring, understanding the concentration and particle size distribution of dust particles in the air is indispensable for evaluating the environmental air quality and the impact on human health.

[0003] Traditional methods for detecting liquid turbidity and dust concentration have many limitations. For liquid turbidity detection, common methods such as visual turbidimetry are relatively simple to operate, but they are highly subjective and have low precision, making it difficult to meet the needs of high-precision industrial production and scientific research. Some instruments based on the principle of scattered light have poor stability in complex environments and limited adaptability to liquids of different properties.

[0004] In the field of dust concentration and liquid cleanliness detection, existing detection equipment often has problems such as large size, high cost, and complex operation, and can often only detect one of the dust particles or liquid cleanliness separately. Some weight-based detection equipment requires a long detection cycle and cannot achieve real-time rapid detection. In addition, some optical detection instruments are not able to distinguish between dust particles of different particle sizes, and cannot accurately provide particle counting information of different particle sizes, making it difficult to fully reflect the actual distribution of dust.

[0005] Therefore, it is necessary to design a new two-in-one optical sensor with both liquid turbidity and dust concentration detection functions to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings existing in the prior art, and proposes a two-in-one optical sensor with liquid turbidity and dust concentration detection functions. The optical sensor can obtain the mass concentration of dust in the gas and the cleanliness of the liquid, and then adjust the cleaning mode, improve the cleaning efficiency, and realize intelligence. Through the setting of the cleaning component, the inner wall and glass plate of the cavity to be tested can be cleaned to ensure the accuracy of subsequent detection. At the same time, through the setting of the switching component and the hollow plate, the two filters are alternately operated and the filters are cleaned to ensure smooth gas flow, so that the particles and debris hanging on the scraper can be stably sucked into the filter box.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A two-in-one optical sensor with liquid turbidity and dust concentration detection functions, including a circuit board, the circuit board is provided with a power supply, a power conversion module, a central processing unit module, a data interaction module, a data interaction interface, a light emission control module, a light emission module, a light receiving module and a signal processing module, the power supply is used to power the light emission control module and the signal processing module, the data interaction interface is used to receive commands from a client host computer, and send the detection command to the data interaction module, or output the final detection result to the client host computer, the data interaction module is used to convert the command and transmit it to the central processing unit module, and the central processing unit module is used to set The mode is set to dust particle detection or liquid cleanliness detection mode and the light emitting module is controlled to emit light. The light receiving module is used to collect corresponding signals according to the conditions of light passing through dust particles or liquid turbidity and output them to the central processing unit module for processing. The central processing unit module calculates and transmits the dust mass concentration and the particle counts of different particle sizes or the liquid cleanliness to the data interaction module through a specific algorithm. The central processing unit module can control the power control module according to the signal generated by the signal processing module, thereby controlling the light emission control module and the signal processing module to cut off the power. The light emitted by the light emitting module is visible light or infrared light in a special band.

[0009] Preferably, it also includes a shell, the circuit board is installed in the shell, a cavity to be tested is provided in the shell, the inner walls on the left and right sides of the cavity to be tested are provided with mounting grooves, and glass plates are provided at the notches of the two mounting grooves, the light emitting module is installed in the mounting groove on the left, and the light receiving module is installed in the mounting groove on the right, the light emitting module is a light source transmitter, and the light receiving module is a receiving block, the upper and lower ends of the shell are respectively provided with an inlet and an outlet, and the adjacent sides of the inlet and the outlet extend into the cavity to be tested, a cleaning assembly is provided in the shell, and the cleaning assembly includes two second pneumatic rods arranged at the top of the cavity to be tested, and the telescopic ends of the two second pneumatic rods are fixed together A rectangular frame is connected, a U-shaped groove is provided at the lower end of the rectangular frame, two rotating rods are rotatably connected to the inner wall of the rear side of the U-shaped groove, cleaning rollers are fixedly connected to the two rotating rods, a rectangular groove is provided on the inner wall of the rear side of the U-shaped groove, a driving motor is installed in the rectangular groove, the output shaft of the driving motor is connected to the two rotating rods through a second transmission assembly, two screw rods are rotatably connected to the inner wall of the rear side of the U-shaped groove, sliders are threadedly connected to the two screw rods, scrapers are fixedly connected to the opposite sides of the two sliders, two transmission grooves are provided at the lower end of the rectangular frame, the rear sides of the plurality of rotating rods and screw rods extend into the transmission groove, and every two matching rotating rods and screw rods are connected through a first transmission assembly.

[0010] Preferably, an air pump and a filter box are installed on the left inner wall of the rectangular frame, the air inlet end of the air pump is connected to the rear space of the filter box through an air outlet pipe, the front space of the filter box is connected to the air inlet pipe, and two suction pipes are fixedly connected to the opposite sides of the two sliding blocks, and the multiple suction pipes are respectively located on the front and rear sides of the corresponding scraper, and the multiple suction pipes are connected to the air inlet pipe through a hose.

[0011] Preferably, the front and rear inner walls of the filter box are commonly fixedly connected with a partition, an opening is provided on the partition, the front and rear inner walls of the opening are commonly rotatably connected with a cross bar, a strip plate is fixedly connected to the cross bar, the two sides of the strip plate are slidingly connected to the front and rear sides of the opening, a first sealing ring is provided on the front and rear sides of the strip plate, and the upper and lower sides of the strip plate are fixedly connected with a filter.

[0012] Preferably, a switching assembly is installed on the filter box, and the switching assembly includes a switching box fixedly connected to the front side of the filter box, the rear side of the cross bar extends into the switching box, a gear is provided on the cross bar, an electromagnet is fixedly connected to the left inner wall of the switching box, a piston is sealingly and slidably connected inside the switching box, the piston and the electromagnet are elastically connected by a spring, and a rack matching the gear is fixedly connected to the right side of the piston.

[0013] Preferably, a collecting box is provided at the lower end of the filter box, the inner bottom of the collecting box is mesh-shaped, the top space of the collecting box is connected with the bottom space of the filter box through a drop-out port, the lower end of the partition is provided with an inner bottom of the filter box, which are jointly fixedly connected with a hollow plate, a plurality of air outlets are provided on the rear side of the hollow plate, the right side space of the switching box is connected with the cavity to be tested through a short tube, the left side space of the switching box is connected with the cavity to be tested through a through port, the right side space of the switching box is connected with the hollow plate through a connecting pipe, and both the connecting pipe and the short pipe are provided with a one-way valve.

[0014] Preferably, telescopic grooves are provided on the inner walls on the left and right sides of the cavity to be tested, the inner walls on the opposite sides of the two telescopic grooves are fixedly connected with a first pneumatic rod, the telescopic ends of the two first pneumatic rods are fixedly connected with a baffle, arc grooves are provided on the adjacent sides of the two baffles, and second sealing rings are provided on the inner walls of the two arc grooves.

[0015] Preferably, the optical transmitting module is divided into an A optical transmitting module and a B optical transmitting module, the optical receiving module is divided into an A receiving module and a B receiving module, the optical transmitting control module is used to control the A optical transmitting module and the B optical transmitting module, the signals generated by the A optical receiving module and the B optical receiving module are transmitted to the signal processing module, the light source emitted by the A optical transmitting module is infrared light of a special band, the light source emitted by the B optical transmitting module is special visible light, the A optical transmitting module and the B optical transmitting module are respectively located on the left side and the rear side of the cavity to be tested, and the A optical receiving module and the B optical receiving module are respectively located on the right side and the front side of the cavity to be tested.

[0016] The present invention has the following beneficial effects:

[0017] 1. Compared with the prior art, the optical sensor of the present invention processes the signal collected by the light receiving module by using a specific algorithm through the central processing unit module, and can accurately calculate and transmit the dust mass concentration and the particle count of different particle sizes or the liquid cleanliness to the data interaction module, and then provide it to the client device, thereby adjusting the cleaning mode, improving the cleaning efficiency, and realizing intelligence. In addition, the optical sensor can not only detect the dust concentration, but also be used to detect the turbidity of the liquid, realizing the measurement function of two important parameters on the same sensor, greatly saving equipment cost, space and operation complexity, and improving detection efficiency;

[0018] 2. Compared with the existing technology, the cleaning component can regularly clean the impurities that may be attached to the glass plate and internal components of the cavity to be tested during the detection process. The second pneumatic rod drives the rectangular frame to move, and the driving motor drives the cleaning roller to rotate and the screw drives the scraper to slide, so that the stains can be completely and effectively removed. At the same time, the air pump, straw and other components can be used to suck away the cleaned impurities in time to prevent them from polluting the detection environment again. This design effectively solves the problem of reduced detection accuracy due to the accumulation of stains in the long-term use of existing detection equipment, and ensures the long-term stable operation of the sensor;

[0019] 3. Compared with the prior art, the filter box and its internal partitions, filter screens and other structures can effectively filter the inhaled gas to prevent impurities from entering the test cavity again, and by setting the switching component, the two filters are operated alternately, so that the filter screen will not cause the gas flow rate to slow down due to blockage, ensuring that the impurities can be completely sucked into the filter box;

[0020] 4. Compared with the prior art, by setting the hollow plate, after each switch of the two filters, the piston reset will use the airflow to blow the debris on the lower filter down and then into the collection box, reducing the impurities remaining on the upper filter.

[0021] To sum up, the present invention can process signals through the central processing unit module, accurately calculate the dust mass concentration and the count of particles of different particle sizes and transmit them to the client device, and can also detect the turbidity of the liquid to achieve two-in-one detection of dust particles and liquid cleanliness, saving costs, space and operational complexity, improving detection and cleaning efficiency, and realizing intelligent regulation. The cleaning component can comprehensively and effectively clean impurities to ensure the long-term stable operation of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a system flow chart of a two-in-one optical sensor with both liquid turbidity and dust concentration detection functions proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a two-in-one optical sensor embodiment 2 with both liquid turbidity and dust concentration detection functions proposed by the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the internal structure;

[0025] Figure 4 for Figure 3 A schematic diagram of the front structure of

[0026] Figure 5 for Figure 2 Bottom view of the middle rectangular frame;

[0027] Figure 6 It is a schematic diagram of the structure of the filter box and the switch box;

[0028] Figure 7 for Figure 5 An interior perspective view of

[0029] Figure 8 for Figure 7 Schematic diagram of the structure of the middle filter;

[0030] Fig. 9 This is a schematic diagram of the structure of Example 3 of the present invention.

[0031] In the figure: 1 shell, 2 test cavity, 3 inlet, 4 outlet, 5 installation slot, 6 glass plate, 7 telescopic slot, 8 baffle, 9 rectangular frame, 10 receiving block, 11 light source transmitter, 12 first pneumatic rod, 13 second pneumatic rod, 14 transmission slot, 15 first transmission assembly, 16 cleaning roller, 17 rotating rod, 18 screw rod, 19 driving motor, 20 slider, 21 scraper, 22 straw, 23 second transmission assembly, 24 hose, 25 filter box, 26 air pump, 27 air inlet pipe, 28 air outlet pipe, 29 partition, 30 filter screen, 31 collection box, 32 drop port, 33 hollow plate, 34 connecting pipe, 35 switching box, 36 electromagnet, 37 spring, 38 gear, 39 cross bar, 40 short tube, 41 strip plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] Example 1

[0034] Reference Figure 1 A two-in-one optical sensor with liquid turbidity and dust concentration detection functions, including a circuit board, on which are arranged a power supply, a power conversion module, a central processing unit module, a data interaction module, a data interaction interface, an optical emission control module, an optical emission module, an optical receiving module and a signal processing module. The power supply is used to power the optical emission control module and the signal processing module. The data interaction interface is used to receive commands from a client host computer and send the detection commands to the data interaction module, or output the final detection results to the client host computer. The data interaction module is used to convert the commands and transmit them to the central processing unit module. The central processing unit module is used to set The mode is set to be dust particle detection or liquid cleanliness detection mode and the light emitting module is controlled to emit light. The light receiving module is used to collect corresponding signals according to the condition of light passing through dust particles or liquid turbidity and output them to the central processing unit module for processing. The central processing unit module calculates and transmits the dust mass concentration and particle counts of different particle sizes or liquid cleanliness to the data interaction module through a specific algorithm. The central processing unit module can control the power control module according to the signal generated by the signal processing module, thereby controlling the light emission control module and the signal processing module to power off. The light emitted by the light emission module is visible light or infrared light in a special band.

[0035] The optical sensor can be directly installed at the connection of the sewage box hose of the existing vacuum-mopping machine, so that the electrical signal generated by the optical sensor enables the existing vacuum-mopping machine to adjust the cleaning mode in real time, improve the cleaning efficiency of the existing vacuum-mopping machine, and realize intelligence.

[0036] The present invention can explain its functional principle through the following operation mode: when the client host computer needs to detect dust particles, a particle concentration detection command is sent through the data interaction interface, and the sensor is set to dust particle detection or liquid cleanliness detection mode through the algorithm inside the MCU. The MCU controls the light transmitting module to work, and the light receiving module collects the corresponding signal according to the condition of the dust particles passing through the cavity 2 to be tested and outputs it to the MCU for processing. The MCU calculates and outputs the dust mass concentration and the particle counts of different particle sizes through a specific algorithm, and provides them to the client device through the data interaction interface. The client terminal device can obtain the dust mass concentration and the particle counts of different particle sizes through this sensor module, and then adjust the cleaning mode;

[0037] When the client host computer needs to detect the cleanliness of the liquid, it sends a liquid cleanliness detection command through the data interaction interface. The sensor is set to the liquid cleanliness detection mode through the algorithm inside the MCU. The MCU controls the light transmitting module to work. The light receiving module collects the corresponding signal according to the cleanliness of the liquid in the cavity 2 to be tested and outputs it to the MCU for processing. The MCU calculates and outputs the liquid cleanliness through a specific algorithm and provides it to the client device through the data interaction interface. The client terminal device can obtain the liquid cleanliness through this sensor module and then adjust the cleaning mode.

[0038] It is worth mentioning that the data interaction module has active mode and passive mode. In active mode, the sensor module intelligently identifies the dust mass concentration or liquid cleanliness of the object to be detected based on the object (dust particles or liquid) in the cavity to be detected, and provides it to the customer host computer through the data interaction module and stores it for a short time. The customer host computer can actively select the signal to be received as dust mass concentration or liquid cleanliness according to its actual needs, so as to adjust the cleaning mode; in passive mode, the sensor module first receives the detection demand command (dust particles or liquid) from the customer host computer. If the customer host computer needs the value of dust particles, the sensor module detects the relevant values ​​of dust particles of the object to be detected and sends them to the host computer. If the customer host computer needs the value of liquid cleanliness, the sensor module detects the relevant values ​​of liquid turbidity of the object to be detected and sends them to the host computer. After receiving the detection data, the customer host computer adjusts the cleaning mode.

[0039] Example 2

[0040] Reference Figure 2-Figure 8, the difference between this embodiment and embodiment 1 is that it also includes a shell 1, through the setting of the shell 1, the optical sensor can be directly embedded in the vacuum and mop integrated machine for use, the circuit board is installed in the shell 1, a cavity 2 to be tested is provided in the shell 1, the inner walls of the left and right sides of the cavity 2 to be tested are provided with mounting grooves 5, and the notches of the two mounting grooves 5 are provided with glass plates 6, the light transmitting module is installed in the mounting groove 5 on the left, and the light receiving module is installed in the mounting groove 5 on the right, the light transmitting module is a light source transmitter 11, and the light receiving module is a receiving block 10, the upper and lower ends of the shell 1 are respectively provided with an inlet 3 and an outlet 4, and the adjacent sides of the inlet 3 and the outlet 4 extend into the cavity 2 to be tested, a cleaning component is provided in the shell 1, and the cleaning component includes two second pneumatic rods 13 arranged at the top of the cavity 2 to be tested, and the telescopic ends of the two second pneumatic rods 13 are fixedly connected with a rectangular frame 9, and the lower end of the rectangular frame 9 is provided with a U-shaped groove, and the rear inner wall of the U-shaped groove is rotatably connected with two rotating rods 17, and the two rotating rods 17 are fixed A cleaning roller 16 is fixedly connected, and the opposite sides of the two cleaning rollers 16 are in close contact with the inner walls of the left and right sides of the chamber 2 to be tested. A rectangular groove is provided on the inner wall of the rear side of the U-shaped groove, and a driving motor 19 is installed in the rectangular groove. The output shaft of the driving motor 19 is connected to the two rotating rods 17 through a second transmission assembly 23. The second transmission assembly 23 includes a second sprocket arranged on the output shaft of the driving motor 19 and the two rotating rods 17. The three second sprockets are connected through a second chain transmission. The radius of the sprocket in the middle is larger than the radius of the other two second sprockets. The U-shaped Two screw rods 18 are rotatably connected to the inner wall of the rear side of the groove, and sliders 20 are threadedly connected to the two screw rods 18. Scrapers 21 are fixedly connected to the opposite sides of the two sliders 20. Two transmission grooves 14 are provided at the lower end of the rectangular frame 9. The rear sides of multiple rotating rods 17 and screw rods 18 extend into the transmission grooves 14. Every two matching rotating rods 17 and screw rods 18 are connected by a first transmission assembly 15. The first transmission assembly 15 includes a first sprocket arranged on the rotating rod 17 and the screw rod 18, and the two first sprockets are connected by a first chain transmission.

[0041] The air pump 26 and the filter box 25 are installed on the left inner wall of the rectangular frame 9. The air inlet end of the air pump 26 is connected to the rear space of the filter box 25 through the air outlet pipe 28. The front space of the filter box 25 is connected to the air inlet pipe 27. The opposite sides of the two sliders 20 are fixedly connected to two suction pipes 22. The multiple suction pipes 22 are respectively located on the front and rear sides of the corresponding scraper 21. The multiple suction pipes 22 are connected to the air inlet pipe 27 through the hose 24. The inner walls of the front and rear sides of the filter box 25 are fixedly connected to the partition 29. An opening is provided on the partition 29, and the inner walls of the front and rear sides of the opening are rotatably connected with a cross bar 39. A strip plate 41 is fixedly connected to the cross bar 39. The two sides of the strip plate 41 are slidably connected to the front and rear sides of the opening. The front and rear sides of the strip plate 41 are both provided with a first sealing ring, and the upper and lower sides of the strip plate 41 are both fixedly connected with a filter screen 30. The radius of the mesh holes on the two filter screens 30 increases from front to back, that is, the mesh holes are truncated cone-shaped, so that impurities sucked into the filter box 25 will be stuck in the filter screen 30.

[0042] Among them, a switching assembly is installed on the filter box 25, and the switching assembly includes a switching box 35 fixedly connected to the front side of the filter box 25, the rear side of the cross bar 39 extends into the switching box 35, and a gear 38 is provided on the cross bar 39. An electromagnet 36 is fixedly connected to the left inner wall of the switching box 35, and a piston is sealed and slidably connected in the switching box 35. The piston and the electromagnet 36 are elastically connected by a spring 37, and a rack matched with the gear 38 is fixedly connected to the right side of the piston. A one-way bearing is provided between the cross bar 39 and the gear 38, so that when the rack moves to the left, the gear 38 can drive the cross bar 39 to rotate, and when the rack moves to the right, the rotation of the gear 38 will not drive the cross bar 39 to rotate. Each time the device is running, the controller will control the electromagnet 36 to be in a cycle state of power on for a period of time → power off for a period of time → power on for a period of time.

[0043] Among them, a collecting box 31 is provided at the lower end of the filter box 25, the inner bottom of the collecting box 31 is meshed, the top space of the collecting box 31 is connected with the bottom space of the filter box 25 through a drop port 32, and the lower end of the partition 29 is provided with the inner bottom of the filter box 25, which is fixedly connected with a hollow plate 33, and a plurality of air outlets are provided on the rear side of the hollow plate 33. The right side space of the switching box 35 is connected with the cavity 2 to be tested through a short tube 40, the left side space of the switching box 35 is connected with the cavity 2 to be tested through a through port, and the right side space of the switching box 35 is connected with the hollow plate 33 through a connecting pipe 34. Both the connecting pipe 34 and the short pipe 40 are provided with a one-way valve. The gas in the cavity 2 to be tested enters the switching box 35 in one direction through the short pipe 40, and the gas in the switching box 35 enters the hollow plate 33 in one direction through the connecting pipe 34.

[0044] Among them, telescopic grooves 7 are provided on the inner walls of the left and right sides of the cavity to be tested 2, and the inner walls on the opposite sides of the two telescopic grooves 7 are fixedly connected with the first pneumatic rods 12, and the telescopic ends of the two first pneumatic rods 12 are fixedly connected with baffles 8, and the adjacent sides of the two baffles 8 are provided with arc grooves, and the inner walls of the two arc grooves are provided with second sealing rings. After each time the first pneumatic rod 12 shrinks to the limit state, the two baffles 8 will enter the telescopic grooves 7. At this time, the staff can control the operation of the air pump 26, the drive motor 19 and the second pneumatic rod 13 through the controller. After the second pneumatic rod 13 is running, it will continuously stretch and shrink. The setting of the second sealing ring can prevent gas or liquid from entering the top space of the cavity to be tested 2 and contacting the cleaning roller 16 during detection.

[0045] In this embodiment, in the initial state, the two first pneumatic rods 12 are in a stretched state, so that the inner walls of the two arc-shaped grooves are in close contact with the tube wall of the outlet 4, so that the space above the cavity 2 to be tested is in a sealed state. At this time, gas or liquid is injected into the cavity 2 to be tested through the inlet 3 to detect the cleanliness of dust particles or liquid. When the detection is completed, the cavity 2 to be tested no longer contains the gas or liquid to be tested. The staff shrinks the two first pneumatic rods 12 through the controller, and the two baffles 8 move back to back into the telescopic groove 7. When the two baffles 8 are completely in the telescopic groove 7, the staff controls the two second pneumatic rods 13 to continuously stretch and shrink through the controller, and drives the motor 19 and the air pump 26 to operate at the same time;

[0046] The driving motor 19 drives the two rotating rods 17 to rotate through the second transmission assembly 23, thereby driving the two cleaning rollers 16 to rotate. Since the two cleaning rollers 16 are tightly attached to the inside of the chamber 2 to be tested, the two cleaning rollers 16 will also move up and down during the rotation of the two cleaning rollers 16 to clean the two glass plates 6 on the inner wall of the chamber 2 to be tested.

[0047] During the cleaning process, the rotation of the two rotating rods 17 drives the two screws 18 to rotate through the first transmission assembly 15, and then the two sliders 20 drive the scraper 21 to move forward and backward to scrape off the impurities adhering to the two cleaning rollers 16. Due to the operation of the air pump 26, the impurities scraped off by the scraper 21 are sucked into the two suction pipes 22 and then enter the upper space of the filter box 25, so that the impurities adhere to the filter screen 30 located above at this time;

[0048] When cleaning the inside of the chamber 2 to be tested, the controller will also control the electromagnet 36 to be energized for a period of time, then deenergized for a period of time, and then energized for a period of time in a cycle. When the electromagnet 36 is energized, it will generate an attractive force on the piston, and the piston drives the rack to move left. Under the action of the gear 38, it drives the cross bar 39 to rotate 180 degrees counterclockwise, so that the positions of the two filters 30 are exchanged, and then the filter 30 located above drives the impurities to enter the bottom (the aperture of the mesh of the filter 30 is continuously reduced from front to back, that is, the shape of each mesh is a truncated cone, so that the impurities will be stuck in the filter 30). When the electromagnet 36 is deenergized, under the action of the spring 37, the piston drives the rack to reset. At this time, due to the setting of the one-way bearing, the rightward movement of the rack will drive the gear 38 to rotate, but the gear 38 will not drive the cross bar 39 to rotate;

[0049] When the piston moves to the left, the space on the right side of the switching box 35 increases and the air pressure decreases, causing the gas in the chamber 2 to be tested to enter the space on the right side of the switching box 35. When the piston moves to the right, the space on the right side of the switching box 35 decreases and the air pressure increases, causing the gas in the switching box 35 to be injected into the filter box 25 through the connecting pipe 34, thereby blowing off the impurities in the filter screen 30 that rotates below. Since the lower end of the collecting box 31 is mesh-shaped, the airflow will bring the blown-off impurities into the collecting box 31 for collection.

[0050] By intermittently turning the electromagnet 36 on and off, the two filters 30 are used alternately to ensure the air permeability of the filters 30 , thereby ensuring that there is always a large airflow to suck the impurities scraped off by the scraper 21 into the suction tube 22 .

[0051] Example 3

[0052] Reference Fig. 9 The difference between this embodiment and embodiment 1 is that the optical transmitting module is divided into an A optical transmitting module and a B optical transmitting module, the optical receiving module is divided into an A receiving module and a B receiving module, the optical transmitting control module is used to control the A optical transmitting module and the B optical transmitting module, the signals generated by the A optical receiving module and the B optical receiving module are transmitted to the signal processing module, the light source emitted by the A optical transmitting module is infrared light of a special band, the light source emitted by the B optical transmitting module is special visible light, the A optical transmitting module and the B optical transmitting module are respectively located on the left side and the rear side of the cavity 2 to be tested, and the A optical receiving module and the B optical receiving module are respectively located on the right side and the front side of the cavity 2 to be tested.

[0053] In this embodiment, when the client host computer needs to detect dust particles, it sends a particle concentration detection command through the data interaction interface. The sensor is set to dust particle detection or liquid cleanliness detection mode through the algorithm inside the MCU. The MCU controls the operation of the A light transmitting module. The light receiving module collects the corresponding signal according to the condition of the dust particles passing through the cavity 2 to be tested and outputs it to the MCU for processing. The MCU calculates and outputs the dust mass concentration and the particle counts of different particle sizes through a specific algorithm, and provides them to the client device through the data interaction interface. The client terminal device can obtain the dust mass concentration and the particle counts of different particle sizes through this sensor module, and then adjust the cleaning mode;

[0054] When the client host computer needs to detect the cleanliness of the liquid, it sends a liquid cleanliness detection command through the data interaction interface. The sensor is set to the liquid cleanliness detection mode through the algorithm inside the MCU. The MCU controls the B light transmitting module to work. The light receiving module collects the corresponding signal and outputs it to the MCU for processing according to the cleanliness of the liquid in the cavity 2 to be tested. The MCU calculates and outputs the liquid cleanliness through a specific algorithm and provides it to the client device through the data interaction interface. The client terminal device can obtain the liquid cleanliness through this sensor module and then adjust the cleaning mode.

[0055] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-in-one optical sensor with both liquid turbidity and dust concentration detection functions, comprising a circuit board, characterized in that: The circuit board is provided with a power supply, a power conversion module, a central processing unit module, a data interaction module, a data interaction interface, an optical emission control module, an optical emission module, an optical receiving module and a signal processing module. The power supply is used to power the optical emission control module and the signal processing module. The data interaction interface is used to receive commands from the client host computer and send the detection commands to the data interaction module, or output the final detection results to the client host computer. The data interaction module is used to convert the commands and transmit them to the central processing unit module. The central processing unit module is used to be set to dust particle detection or liquid cleanliness detection. The detection mode controls the light emitting module to emit light. The light receiving module is used to collect corresponding signals according to the condition of light passing through dust particles or liquid turbidity and output them to the central processing unit module for processing. The central processing unit module calculates and transmits the dust mass concentration and the particle counts of different particle sizes or the liquid cleanliness to the data interaction module through a specific algorithm. The central processing unit module can control the power control module according to the signal generated by the signal processing module, thereby controlling the light emission control module and the signal processing module to cut off the power. The light emitted by the light emitting module is visible light or infrared light in a special band.

2. The two-in-one optical sensor with both liquid turbidity and dust concentration detection functions according to claim 1, characterized in that: The device further comprises a housing (1), wherein the circuit board is installed in the housing (1), a cavity (2) to be tested is arranged in the housing (1), the inner walls on the left and right sides of the cavity (2) to be tested are both provided with mounting grooves (5), the notches of the two mounting grooves (5) are both provided with glass plates (6), the light transmitting module is installed in the mounting groove (5) located on the left, and the light receiving module is installed in the mounting groove (5) located on the right, the light transmitting module is a light source transmitter (11), and the light receiving module is a receiving block (10), the upper and lower ends of the housing (1) are respectively provided with an inlet (3) and an outlet (4), and the adjacent sides of the inlet (3) and the outlet (4) both extend into the cavity (2) to be tested, a cleaning assembly is arranged in the housing (1), and the cleaning assembly comprises two second pneumatic rods (13) arranged at the top of the cavity (2) to be tested, and the telescopic ends of the two second pneumatic rods (13) are fixedly connected to a rectangular frame (9), A U-shaped groove is provided at the lower end of the rectangular frame (9), and two rotating rods (17) are rotatably connected to the inner wall of the rear side of the U-shaped groove. A cleaning roller (16) is fixedly connected to the two rotating rods (17). A rectangular groove is provided at the inner wall of the rear side of the U-shaped groove. A driving motor (19) is installed in the rectangular groove. The output shaft of the driving motor (19) is transmission-connected to the two rotating rods (17) through a second transmission assembly (23). Two screw rods (18) are rotatably connected to the inner wall of the rear side of the U-shaped groove. Slide blocks (20) are threadedly connected to the two screw rods (18). Scrapers (21) are fixedly connected to the opposite sides of the two slide blocks (20). Two transmission grooves (14) are provided at the lower end of the rectangular frame (9), and the rear sides of the plurality of rotating rods (17) and screw rods (18) extend into the transmission groove (14). Every two matching rotating rods (17) and screw rods (18) are transmission-connected through a first transmission assembly (15).

3. The two-in-one optical sensor with both liquid turbidity and dust concentration detection functions according to claim 2, characterized in that: An air pump (26) and a filter box (25) are installed on the left inner wall of the rectangular frame (9); an air inlet end of the air pump (26) is connected to the rear space of the filter box (25) through an air outlet pipe (28); an air inlet pipe (27) is connected to the front space of the filter box (25); two suction pipes (22) are fixedly connected to the opposite sides of the two sliders (20); the plurality of suction pipes (22) are respectively located at the front and rear sides of the corresponding scraper (21); and the plurality of suction pipes (22) are connected to the air inlet pipe (27) through a hose (24).

4. The two-in-one optical sensor with both liquid turbidity and dust concentration detection functions according to claim 3, characterized in that: The front and rear inner walls of the filter box (25) are commonly fixedly connected with a partition (29), an opening is provided on the partition (29), the front and rear inner walls of the opening are commonly rotatably connected with a cross bar (39), a strip plate (41) is fixedly connected to the cross bar (39), both sides of the strip plate (41) are slidably connected to the front and rear inner walls of the opening, the front and rear sides of the strip plate (41) are both provided with a first sealing ring, and the upper and lower sides of the strip plate (41) are both fixedly connected with a filter screen (30).

5. The two-in-one optical sensor with both liquid turbidity and dust concentration detection functions according to claim 4, characterized in that: A switching assembly is installed on the filter box (25), and the switching assembly includes a switching box (35) fixedly connected to the front side of the filter box (25). The rear side of the cross bar (39) extends into the switching box (35). A gear (38) is provided on the cross bar (39). An electromagnet (36) is fixedly connected to the left inner wall of the switching box (35). A piston is sealingly and slidably connected inside the switching box (35). The piston is elastically connected to the electromagnet (36) via a spring (37). A rack matching the gear (38) is fixedly connected to the right side of the piston.

6. The two-in-one optical sensor with both liquid turbidity and dust concentration detection functions according to claim 5, characterized in that: A collecting box (31) is provided at the lower end of the filter box (25), the inner bottom of the collecting box (31) is mesh-shaped, the top space of the collecting box (31) is connected to the bottom space of the filter box (25) through a drop opening (32), the lower end of the partition plate (29) is provided with a hollow plate (33) fixedly connected to the inner bottom of the filter box (25), a plurality of air outlets are provided on the rear side of the hollow plate (33), the right side space of the switching box (35) is connected to the chamber to be tested (2) through a short tube (40), the left side space of the switching box (35) is connected to the chamber to be tested (2) through a through port, the right side space of the switching box (35) is connected to the hollow plate (33) through a connecting pipe (34), and both the connecting pipe (34) and the short pipe (40) are provided with a one-way valve.

7. The two-in-one optical sensor with both liquid turbidity and dust concentration detection functions according to claim 2, characterized in that: The left and right inner walls of the cavity to be tested (2) are both provided with telescopic grooves (7), the inner walls on the opposite sides of the two telescopic grooves (7) are both fixedly connected with first pneumatic rods (12), the telescopic ends of the two first pneumatic rods (12) are both fixedly connected with baffles (8), the adjacent sides of the two baffles (8) are both provided with arc grooves, and the inner walls of the two arc grooves are both provided with second sealing rings.

8. The two-in-one optical sensor with both liquid turbidity and dust concentration detection functions according to claim 1, characterized in that: The light emitting module is divided into an A light emitting module and a B light emitting module, the light receiving module is divided into an A receiving module and a B receiving module, the light emitting control module is used to control the A light emitting module and the B light emitting module, the signals generated by the A light receiving module and the B light receiving module are transmitted to the signal processing module, the light source emitted by the A light emitting module is infrared light of a special band, the light source emitted by the B light emitting module is special visible light, the A light emitting module and the B light emitting module are respectively located on the left side and the rear side of the cavity (2) to be tested, and the A light receiving module and the B light receiving module are respectively located on the right side and the front side of the cavity (2) to be tested.

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