Uv purifier and control method of uv purifier

Abstract

The application provides a UV purifier and a control method of the UV purifier, which comprises an MCU processor, a controller, a lamp group control circuit and a purification box. At least one group of UV lamps is arranged in the purification box. The MCU processor is used for receiving an initial starting signal sent by the controller, determining a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generating a lamp group starting signal according to the initial starting signal, and sending the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit. The lamp group control circuit is used for starting the corresponding UV lamp group in the purification box according to the to-be-started lamp group number and the lamp group starting signal. In this way, the workload of the UV lamp group in the UV purifier is intelligently allocated according to actual requirements, so that the electric energy is saved, the service life of the UV lamp tube is prolonged, and the use cost of the UV purifier is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of purifiers, in particular to a UV purifier and a control method of the UV purifier. BACKGROUND

[0002] The oil fume of a kitchen has a great impact on the environment if directly discharged. The central range hood of each manufacturer filters and purifies the oil fume of a flue uniformly before discharging. At present, most of them adopt a primary electrostatic purification to purify the particulate matter contained in the oil fume before discharging. Some of them adopt two or more levels of purification to purify the oil fume to remove the odor before discharging, so that the discharged air is cleaner and the environmental pollution is reduced. At present, the UV (Ultraviolet) purifier has the best purification effect on the odor in the oil fume.

[0003] The existing UV purifier can only work at full power after being powered on and cannot adjust the purification power according to the actual demand, that is, the number of UV lamp tubes cannot be adjusted, so that the power consumption is large, the service life of the UV lamp tube is short, and the use cost of the UV purifier is high. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a UV purifier and a control method of the UV purifier, which can adjust the purification power of the UV purifier according to the actual demand, thereby saving the power, prolonging the service life of the UV lamp tube, and further saving the use cost of the UV purifier.

[0005] In a first aspect, the present application provides a UV purifier, comprising: an MCU processor, a controller, a lamp group control circuit and a purification tank; wherein the controller is connected with the MCU processor; one end of the lamp group control circuit is connected with the MCU processor, and the other end of the lamp group control circuit is connected with the purification tank; at least one group of UV lamp groups are arranged in the purification tank; the MCU processor is used for receiving an initial start signal sent by the controller, determining a to-be-started lamp group number according to a preset lamp group starting rule and the initial start signal, generating a lamp group start signal according to the initial start signal, and sending the to-be-started lamp group number and the lamp group start signal to the lamp group control circuit; and the lamp group control circuit is used for starting the corresponding UV lamp group in the purification tank according to the to-be-started lamp group number and the lamp group start signal.

[0006] Further, the controller comprises a purifier controller and a fan controller; the purifier controller is used for acquiring an input signal of a user, converting the input signal into a control signal, sending the control signal to the MCU processor to control the opening or closing of the UV lamp group; and the fan controller is used for acquiring a fan input signal input by the user, converting the fan input signal into a fan control signal, and sending the fan control signal to the MCU processor to control the opening or closing of the UV lamp group through the MCU processor.

[0007] Furthermore, the UV purifier also includes a control interface, which is connected to both the MCU processor and the controller. The control interface includes a purifier interface and a wired communication bus interface. The purifier interface is connected to the purifier controller, and the wired communication bus interface is connected to the fan controller. The purifier interface receives purifier control signals from the purifier controller and sends these signals to the MCU processor. The purifier control signals are either purifier start signals or purifier stop signals. The wired communication bus interface receives fan control signals from the fan controller and sends these signals to the MCU processor. The fan control signals are either fan start signals, fan on / off level signals, or fan stop signals. The MCU processor is also used to receive purifier control signals when it receives signals from the purifier controller. When the start signal is received, a lamp group start signal is generated, and the lamp group number to be started is determined to be the number of all UV lamp groups. The MCU processor is also used to generate a lamp group start signal when a fan start signal and a fan on / off speed signal are received. According to the preset fan speed-purification capacity correspondence rule, the number of lamp groups to be started corresponding to the fan on / off speed signal is determined. According to the preset lamp group opening sequence and the number of lamp groups to be started, the lamp group number to be started is determined, so that the UV lamp group corresponding to the lamp group number to be started can be started through the lamp group control circuit. The MCU processor is also used to generate a lamp group off signal when a purifier off signal or a fan off signal is received, but no initial start signal is received. The lamp group off signal is sent to the lamp group control circuit, so that all UV lamp groups can be turned off through the lamp group control circuit.

[0008] Furthermore, the air purifier controller includes at least one of a product-side controller and an external controller; the control interface also includes at least one of a main body control interface and an external control interface; the main body control interface is connected to the MCU processor and the product-side controller respectively; the external control interface is connected to the MCU processor and the external controller respectively.

[0009] Furthermore, the controller also includes an external remote controller; the external remote controller is connected to a wired communication bus interface; the wired communication bus interface is also used to acquire remote control signals sent by the external remote controller and send the remote control signals to the MCU processor; the remote control signals are remote start signals or remote stop signals; the MCU processor is also used to generate a lamp group start signal when a remote start signal is received, and determine the lamp group number to be started as the number of all UV lamp groups; the MCU processor is also used to generate a lamp group stop signal when a remote stop signal is received, but no initial start signal is received, and send the lamp group stop signal to the lamp group control circuit, so as to turn off all UV lamp groups through the lamp group control circuit.

[0010] Further, the UV purifier further comprises a data storage module; the data storage module is connected with the MCU processor and the controller respectively; the MCU processor is further configured to extract the lamp group working time corresponding to each UV lamp group and the total working time corresponding to the purification tank in the data storage module after the UV purifier is powered on; when the fan starting signal and the fan opening gear signal are received, the UV lamp groups are sorted in the order from short to long according to the lamp group working time, and the lamp group number corresponding to the UV lamp group to be opened is determined as the to-be-started lamp group number; the MCU processor is further configured to, when the UV lamp group starts to work, accumulate the real-time working time to the lamp group working time and the total working time of the corresponding UV lamp group respectively, and save the updated lamp group working time and total working time to the data storage module.

[0011] Further, the UV purifier further comprises a UV lamp encoder; the UV lamp encoder is connected with the MCU processor; the UV lamp group comprises at least one UV lamp tube; the UV lamp encoder is configured to pre-store the total number of UV lamp tubes in the purification tank for the MCU processor to extract after the UV purifier is powered on.

[0012] Further, the UV purifier further comprises a power voltage acquisition circuit, an analog acquisition circuit and a UV lamp current information acquisition device; the UV lamp current information acquisition device is connected with the purification tank; the analog acquisition circuit is connected with the MCU processor, the power voltage acquisition circuit and the UV lamp current information acquisition device respectively; the UV lamp current information acquisition device is configured to acquire the current signal when the purification tank works, and send the current signal to the analog acquisition circuit; the power voltage acquisition circuit is configured to convert the grid voltage into a voltage signal, and send the voltage signal to the analog acquisition circuit; the analog acquisition circuit is configured to convert the voltage signal into a power voltage value, convert the current signal into a working current value, and send the power voltage value and the working current value to the MCU processor; the MCU processor is configured to determine the real-time power of the purification tank when working according to the power voltage value and the working current value.

[0013] Further, the UV purifier further comprises a product information output port; the product information output port is connected with the MCU processor; the MCU processor is further configured to determine the current maximum power reference value and the current minimum power reference value according to the pre-stored parameter rated value of a single UV lamp tube and the pre-set power reference value calculation method, determine the maintenance power range and the fault power range according to the current maximum power reference value and the current minimum power reference value; compare the real-time power with the maintenance power range and the fault power range respectively, when the real-time power is in the maintenance power range, send the maintenance signal to the product information output port; when the real-time power is in the fault power range, send the fault signal to the product information output port; the MCU processor is further configured to, when the total working time of the purification tank reaches the pre-set maintenance period, send the maintenance signal to the product information output port.

[0014] Further, the UV purifier further comprises a maintenance indicator light, a fault indicator light, an operation indicator light and a power indicator light; the maintenance indicator light, the fault indicator light, the operation indicator light and the power indicator light are connected with the product information output port respectively; the MCU processor is further used for sending a normal operation signal to the product information output port when the UV purifier is normally operated, and sending a power connection signal to the product information output port when the UV purifier is connected with an external power supply; the product information output port is used for lighting the corresponding indicator light according to the received signal.

[0015] Further, the UV purifier further comprises a wireless communication interface and a GPRS communication module connected with each other; the wireless communication interface is connected with the MCU processor; the GPRS communication module is in communication connection with a cloud platform; the GPRS communication module is used for acquiring the maintenance signal or the fault signal sent by the MCU processor through the wireless communication interface, and sending the maintenance signal or the fault signal to the cloud platform.

[0016] In the second aspect, the embodiment of the present application provides a control method of a UV purifier, which is applied to the UV purifier in any of the above aspects; the control method comprises the following steps: the MCU processor receives an initial starting signal sent by the controller, determines a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generates a lamp group starting signal according to the initial starting signal, and sends the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit; the lamp group control circuit starts the corresponding UV lamp group in the purification box according to the to-be-started lamp group number and the lamp group starting signal.

[0017] The embodiment of the present application provides a UV purifier and a control method of the UV purifier, which comprise: an MCU processor, a controller, a lamp group control circuit and a purification box; wherein the controller is connected with the MCU processor; one end of the lamp group control circuit is connected with the MCU processor, and the other end of the lamp group control circuit is connected with the purification box; at least one UV lamp group is arranged in the purification box; the MCU processor is used for receiving an initial starting signal sent by the controller, determining a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generating a lamp group starting signal according to the initial starting signal, and sending the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit; the lamp group control circuit is used for starting the corresponding UV lamp group in the purification box according to the to-be-started lamp group number and the lamp group starting signal. In this way, the UV lamp groups in the UV purifier are grouped, and the workload of the UV lamp groups is intelligently allocated according to actual needs, so that the electric energy is saved, the service life of the UV lamp tube is prolonged, and the use cost of the UV purifier is saved.

[0018] Other features and advantages of the present application will be set forth in the descriptions that follow, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0019] To make the above objectives, features and advantages of the present application more apparent, the following will describe a preferred embodiment in detail, and the accompanying drawings are referred to for illustration. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0021] Figure 1 The UV purifier provided by the first embodiment of the present application is shown in the schematic diagram.

[0022] Figure 2 The UV purifier provided by the first embodiment of the present application is shown in the schematic diagram with working time accumulation.

[0023] Figure 3 The UV purifier provided by the first embodiment of the present application is shown in the schematic diagram with maintenance and fault prompt.

[0024] Figure 4 The UV purifier provided by the second embodiment of the present application is shown in the schematic diagram containing the first multi-purifier controller.

[0025] Figure 5 The UV purifier provided by the second embodiment of the present application is shown in the schematic diagram containing the second multi-purifier controller.

[0026] Figure 6 The UV purifier provided by the second embodiment of the present application is shown in the schematic diagram containing the third multi-purifier controller.

[0027] Figure 7 The UV purifier provided by the third embodiment of the present application is shown in the schematic diagram which can be remotely controlled.

[0028] Figure 8 The flow chart of the control method of the UV purifier provided by the fourth embodiment of the present application is shown in the schematic diagram.

[0029] Icon: 1-MCU processor; 2-lamp group control circuit; 3-purification tank; 4-purifier controller; 5-fan controller; 6-data storage module; 7-UV lamp encoder; 8-power voltage acquisition circuit; 9-analog acquisition circuit; 10-UV lamp current information acquisition device; 11-power supply interface; 12-external power supply; 13-product information output port; 14-maintenance indicator light; 15-fault indicator light; 16-operation indicator light; 17-power indicator light; 18-main control board; 19-purifier interface; 20-wired communication bus interface; 21-product end controller; 22-body control interface; 23-external external controller; 24-external control interface; 25-external remote controller. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment one:

[0033] Figure 1 The UV purifier provided by the embodiment one of the present application is shown in the figure.

[0034] Reference Figure 1 The UV purifier comprises a MCU (Microcontroller Unit) processor, a controller, a lamp group control circuit 2 and a purification tank 3. The controller is connected with the MCU processor 1. One end of the lamp group control circuit 2 is connected with the MCU processor 1, and the other end of the lamp group control circuit 2 is connected with the purification tank 3. At least one group of UV lamp groups is arranged in the purification tank 3.

[0035] Here, n groups of UV lamp groups with the same number of UV lamp tubes are arranged in the purification tank 3. Each group of UV lamp groups has a unique lamp group number, and the UV lamp group number in the purification tank 3 is Nn.

[0036] The MCU processor 1 is used for receiving an initial start signal sent by the controller, determining a to-be-started lamp group number according to a preset lamp group starting rule and the initial start signal, generating a lamp group starting signal according to the initial start signal, and sending the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit 2.

[0037] Here, the MCU processor 1 is the main control chip of the UV purifier, which controls the opening or closing of the purifier by receiving the signal of the controller.

[0038] The lamp group control circuit 2 is used to open the corresponding UV lamp group in the purification box 3 according to the to-be-started lamp group number and the lamp group starting signal.

[0039] Here, the lamp group control circuit 2 controls the on-off of each UV lamp group in the purification box 3 according to the signal sent by the MCU processor 1, so as to realize the control of the opening or closing of the purification box 3.

[0040] In an embodiment, referring to Figure 1 , the controller includes a purifier controller 4 and a fan controller 5. The UV purifier further includes a control interface connected with the MCU processor 1 and the controller respectively; the control interface includes a purifier interface 19 and a wired communication bus interface 20, the purifier interface 19 is connected with the purifier controller 4, and the wired communication bus interface 20 is connected with the fan controller 5.

[0041] The purifier controller 4 is used to obtain the input signal of the user, convert the input signal into a control signal, and send the control signal to the MCU processor 1 to control the opening or closing of the UV lamp group.

[0042] Here, the input signal includes opening information and closing information. The input signal can be input by the user on the purifier controller 4, or can be selected by the user on the purifier controller 4.

[0043] The fan controller 5 is used to obtain the fan input signal input by the user, convert the fan input signal into a fan control signal, and send the fan control signal to the MCU processor 1 to control the opening or closing of the UV lamp group through the MCU processor 1.

[0044] Here, the fan input signal includes fan opening information, fan gear information and fan closing information. The fan input signal can be input by the user on the fan controller 5, or can be selected by the user on the fan controller 5.

[0045] The purifier interface 19 is used to receive the purifier control signal sent by the purifier controller 4 and send the purifier control signal to the MCU processor 1; the purifier control signal is a purifier starting signal or a purifier closing signal.

[0046] The wired communication bus interface 20 is used to receive the fan control signal sent by the fan controller 5 and send the fan control signal to the MCU processor 1; the fan control signal is a fan starting signal and a fan opening gear signal, or a fan closing signal.

[0047] Here, the wired communication bus interface 20 is used for the UV purifier to receive the information sent by the controller through the wired interface. The type of the wired communication bus interface 20 can be selected according to the actual situation, which can be an RS485 bus interface or an RS232 bus interface.

[0048] The MCU processor 1 is further configured to generate a lamp group start signal when receiving the purifier start signal, and determine the to-be-started lamp group number as the number of all UV lamp groups.

[0049] Here, the initial start signal includes the purifier start signal. The preset lamp group start rule includes that when the initial start signal is the purifier start signal, all UV lamp groups are turned on.

[0050] The MCU processor 1 is further configured to generate a lamp group start signal when receiving the fan start signal and the fan opening gear signal, determine the to-be-started lamp group number according to the preset fan gear-purification amount corresponding rule, and determine the to-be-started lamp group number according to the preset lamp group opening sequence and the to-be-started lamp group number, so as to turn on the UV lamp group corresponding to the to-be-started lamp group number through the lamp group control circuit 2.

[0051] Here, the initial start signal also includes the fan start signal. The preset lamp group start rule also includes that when the initial start signal is the fan start signal, a corresponding number of UV lamp groups are turned on.

[0052] The preset fan gear-purification amount corresponding rule can be set according to the actual situation. For example, three groups of UV lamp groups are set, and the fan gear is divided into three gears: large, medium and small. When the fan gear is in the large gear, all three groups of UV lamp groups are turned on; when the fan gear is in the medium gear, two groups of UV lamp groups are turned on; and when the fan gear is in the small gear, one group of UV lamp groups is turned on.

[0053] The MCU processor 1 is further configured to generate a lamp group closing signal when receiving the purifier closing signal or the fan closing signal, and send the lamp group closing signal to the lamp group control circuit 2, so as to turn off all UV lamp groups through the lamp group control circuit 2.

[0054] Here, when the MCU processor 1 receives the closing signal sent by any one of the purifier controller 4 or the fan controller 5, it is determined whether there is a purifier start signal and a fan start signal at this time. If there is no purifier start signal and fan start signal, the lamp group closing signal is sent to the lamp group control circuit 2, so as to control all UV lamp groups to be turned off.

[0055] In an embodiment, referring to Figure 2 The UV purifier further comprises a data storage module 6, and the data storage module 6 is connected with the MCU processor 1 and the controller respectively.

[0056] Here, the data storage module 6 is an EEPROM (Electrically Erasable Programmable Read-Only Memory). Since the UV purifier needs to send a maintenance prompt to the user after reaching the preset maintenance period, after the MCU processor 1 accumulates the working time of the purification tank 3, the accumulated working time needs to be saved to the data storage module 6, so that the MCU processor 1 can read the stored accumulated working time next time the power is turned on and continue timing.

[0057] The MCU processor 1 is also used to extract the lamp group working time corresponding to each UV lamp group and the total working time corresponding to the purification tank 3 in the data storage module 6 after the UV purifier is powered on; when the fan start signal and the fan opening gear signal are received, the UV lamp groups are sorted in order of the lamp group working time from short to long, and the lamp group number corresponding to the UV lamp group to be opened is determined as the to-be-started lamp group number.

[0058] Here, in order to ensure that the lamp group working time of each group is basically the same, the preset lamp group opening sequence is set to sort the UV lamp groups in order of the lamp group working time from short to long, and the lamp group with the shortest lamp group working time is opened first.

[0059] The MCU processor 1 is also used to, when the UV lamp group starts working, accumulate the real-time working time to the lamp group working time and the total working time corresponding to the corresponding UV lamp group respectively, and save the updated lamp group working time and total working time to the data storage module 6.

[0060] Here, when each lamp group is opened, the working time of each opened lamp group is accumulated, and the unopened lamp group is not accumulated. At the same time, the total working time of the purification tank 3 is accumulated.

[0061] When the number of UV lamp groups is 3, N1, N2 and N3, the lamp group working time of each group in the data storage module 6 is T1, T2 and T3 respectively. At the same time, the total working time of the purification tank 3 is Tz.

[0062] In an embodiment, referring to Figure 2 , the UV purifier further comprises a UV lamp encoder 7; the UV lamp encoder 7 is connected with the MCU processor 1; and the UV lamp group comprises at least one UV lamp tube.

[0063] The UV lamp encoder 7 is used to pre-store the total number nz of UV lamp tubes in the purification tank 3 for the MCU processor 1 to extract after the UV purifier is powered on.

[0064] Here, the total number of UV lamp tubes is nz, and the number of UV lamp tubes in each UV lamp group is

[0065] Different UV purifiers need to set different number of UV lamps due to different purification demand, and the UV lamp encoder 7 is used to adjust the position of the same number of UV lamps in the current UV purifier, and provide the total number of UV lamps information parameter to the MCU processor 1, which is conducive to the adaptation of the MCU processor 1 to different UV purifier lamp numbers, reduces the number of MCU processors 1 developed for different sizes of UV purifiers, or multiple versions. It is also convenient for the MCU processor 1 to calculate the power of each lamp group and the total power of different UV lamp groups of the UV purifier.

[0066] Among them, the UV lamp encoder 7 is not limited to the collection method of setting the UV lamp number information input, such as can also be designed into a key input method, or a kind of collection tool, directly imported into the data storage module 6 for adjustment and the like.

[0067] In an embodiment, referring to Figure 2 , the UV purifier further comprises a power voltage acquisition circuit 8, an analog acquisition circuit 9 and a UV lamp current information acquisition device 10; the UV lamp current information acquisition device 10 is connected with the purification tank 3; the analog acquisition circuit 9 is connected with the MCU processor 1, the power voltage acquisition circuit 8 and the UV lamp current information acquisition device 10 respectively.

[0068] Here, the power voltage acquisition circuit 8 is connected with the external power supply through the power supply interface 11.

[0069] The UV lamp current information acquisition device 10 is used to obtain the current signal when the purification tank 3 works, and send the current signal to the analog acquisition circuit 9.

[0070] Here, the UV lamp current information acquisition device 10 obtains the current signal when each UV lamp group in the purification tank 3 works respectively or simultaneously, and sends the current signal to the analog acquisition circuit 9.

[0071] Among them, the UV lamp current information acquisition device 10 is mainly used to let the MCU processor 1 obtain the current information of the purification tank 3, and is not limited to the collection method, such as current transformer, current sensing semiconductor device, Hall sensing device and the like specific implementation, resistance collection, resistance collection + operation and the like collection method.

[0072] The power voltage acquisition circuit 8 is used to convert the grid voltage into a voltage signal, and send the voltage signal to the analog acquisition circuit 9.

[0073] Here, the power voltage acquisition circuit 8 converts the grid voltage of the external power supply into a relatively low level voltage signal, and sends it to the MCU processor 1 through the analog acquisition circuit 9, so that the MCU processor 1 reads it.

[0074] The power supply voltage acquisition circuit 8 can acquire the voltage through a voltage transformer, an isolation transformer, a linear optical couple, a resistance voltage divider or other methods.

[0075] The analog acquisition circuit 9 is used to convert the voltage signal into a power supply voltage value Us, convert the current signal into a working current value Is, and send the power supply voltage value and the working current value to the MCU processor 1.

[0076] Here, the analog acquisition circuit 9 performs analog-to-digital conversion on the external multi-channel analog information, removes the noise interference of the circuit, and provides stable information output for the MCU to identify.

[0077] The MCU processor 1 is used to determine the real-time power of the purification tank 3 during working according to the power supply voltage value and the working current value.

[0078] Here, the MCU processor 1 pre-stores the parameter rated value of a single UV lamp tube, wherein the parameter rated value includes the lamp power P of a single UV lamp tube and the power allowable error value ΔPwc.

[0079] The MCU processor 1 acquires the power supply voltage value Us and the working current value Is of the purification tank 3 during working in real time, determines the real-time power Pss of the UV lamp group under the current working condition according to the electric power calculation theory formula, as shown in formula (1):

[0080] Pss=Us·Is (1)

[0081] According to the lamp power P of a single UV lamp tube and the total number nz of UV lamp tubes, the working rated power of the UV lamp group under different working conditions is pre-calculated, as shown in formula (2):

[0082]

[0083] Wherein, Pd is the single lamp group working rated power, Ps is the double lamp group working rated power, and Pq is the full lamp group working rated power.

[0084] The working rated power under the current working condition is determined as Pe, if the current working condition is single lamp group working, then Pe=Pd; if the current working condition is double lamp group working, then Pe=Ps; if the current working condition is full lamp group working, then Pe=Pq.

[0085] In an embodiment, referring to Figure 1 , the UV purifier further comprises a product information output port 13; the product information output port 13 is connected with the MCU processor 1.

[0086] The MCU processor 1 is further configured to determine a current maximum power reference value and a current minimum power reference value according to a pre-stored parameter rating of a single UV lamp tube and a preset power reference value calculation method, determine a maintenance power range and a failure power range according to the current maximum power reference value and the current minimum power reference value, and compare the real-time power with the maintenance power range and the failure power range respectively, and send a maintenance signal to the product information output port 13 when the real-time power is within the maintenance power range, and send a failure signal to the product information output port 13 when the real-time power is within the failure power range.

[0087] Here, the total number of lamp working under the current working condition nd is determined, nd = 3 when the current working condition is single lamp group, n 3 z nd = 6 when the current working condition is double lamp group, 2 3 nz and nd = nz when the current working condition is full lamp group.

[0088] The maximum error power coefficient value of the UV lamp group under the current working condition is shown in formula (3):

[0089] ΔPmax = ΔPwc·nd (3)

[0090] Where ΔPmax is the maximum error power coefficient value.

[0091] The current maximum power reference value Pmax is obtained by combining the working rated power under the current working condition and the maximum error power coefficient, as shown in formula (4):

[0092] Pmax = Pe + ΔPmax (4)

[0093] The current minimum power reference value Pmin is obtained by subtracting the maximum error power coefficient from the working rated power under the current working condition, as shown in formula (5):

[0094] Pmin = Pe - ΔPmax (5)

[0095] Specifically, the real-time power Pss is compared with the current maximum power reference value Pmax and the current minimum power reference value Pmin respectively.

[0096] When Pss > 1.1·Pmax, it indicates that the power of the working UV lamp group under the current working condition is out of standard.

[0097] When Pss < 0.9·Pmin, it indicates that the working UV lamp group under the current working condition is attenuated.

[0098] When the working UV lamp group is out of standard or attenuated, the MCU processor 1 sends a maintenance signal of the corresponding lamp group to the product information output port 13.

[0099] When Pss>1.5·Pmax, it indicates that the power of the working UV lamp group is over the standard in the current working condition, and the UV lamp group may be damaged.

[0100] When Pss=0 or Pss<0.5·Pmin, it indicates that the working UV lamp group cannot work normally in the current working condition, and the UV lamp group is open-circuited or partially damaged.

[0101] At this time, the MCU processor 1 sends a fault signal to the product information output port 13.

[0102] The MCU processor 1 is further configured to send a maintenance signal to the product information output port 13 when the total working time of the purification tank 3 reaches a preset maintenance period.

[0103] Here, when the UV purifier is installed for a long time, but the UV lamp tube is detected to be in good condition and does not need to be maintained, it only indicates that the UV lamp tube is working normally, but the purification time is too long, and the UV lamp tube in the purification tank 3 may be blocked by particulate matter, which will block the purification effect of the UV light beam on the decomposition of oil smoke odor. Therefore, the maintenance information needs to be reported regularly according to the working time.

[0104] The preset maintenance period can be set according to the actual situation, and when the total working time of the purification tank 3 reaches the preset maintenance period, the MCU processor 1 prompts the user to maintain the UV purifier.

[0105] The maintenance signal and the fault signal sent by the MCU processor 1 can also be sent to the purifier controller 4 or the fan controller 5, so that the user can obtain the maintenance information or fault information of the UV purifier in time.

[0106] In an embodiment, referring to Figure 1 , the UV purifier further comprises a maintenance indicator 14, a fault indicator 15, a running indicator 16, and a power indicator 17; the maintenance indicator 14, the fault indicator 15, the running indicator 16, and the power indicator 17 are connected to the product information output port 13.

[0107] The MCU processor 1 is further configured to send a normal running signal to the product information output port 13 when the UV purifier is running normally, and send a power connection signal to the product information output port 13 when the UV purifier is connected to the external power supply 12.

[0108] The product information output port 13 is configured to light the corresponding indicator according to the received signal.

[0109] Here, the product information output port 13 turns on the maintenance indicator 14 according to the maintenance information, turns on the fault indicator 15 according to the fault information, turns on the running indicator 16 according to the normal running signal, and turns on the power indicator 17 according to the power connection signal.

[0110] In an embodiment, referring to Figure 3 , the UV purifier further comprises a connected wireless communication interface and a GPRS (General Packet Radio Services) communication module; the wireless communication interface is connected with the MCU processor 1; and the GPRS communication module is in communication connection with a cloud platform.

[0111] The GPRS communication module is configured to acquire the maintenance signal or the fault signal sent by the MCU processor 1 through the wireless communication interface, and send the maintenance signal or the fault signal to the cloud platform.

[0112] The GPRS communication module is mainly used to enable the product to communicate with platform information or controller-side information through a wireless interface, and is not subject to the GPRS communication mode or the wireless communication mode such as WIFI and radio frequency.

[0113] In an embodiment, referring to Figure 1 , the MCU processor 1, the data storage module 6, the control interface, the UV lamp encoder 7, the power supply voltage acquisition circuit 8, the analog acquisition circuit 9, the power supply interface 11 and the product output port in the UV purifier are all arranged on the main control board 18.

[0114] The embodiment of the present application provides a UV purifier, which comprises an MCU processor, a controller, a lamp group control circuit and a purification tank; wherein the controller is connected with the MCU processor; one end of the lamp group control circuit is connected with the MCU processor, and the other end of the lamp group control circuit is connected with the purification tank; at least one group of UV lamp groups are arranged in the purification tank; the MCU processor is configured to receive an initial starting signal sent by the controller, determine a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generate a lamp group starting signal according to the initial starting signal, and send the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit; and the lamp group control circuit is configured to turn on a corresponding UV lamp group in the purification tank according to the to-be-started lamp group number and the lamp group starting signal. In this way, the UV lamp groups in the UV purifier are grouped, and the workload of the UV lamp groups is intelligently allocated according to actual needs, so that the electric energy is saved, the service life of the UV lamp tube is prolonged, and the use cost of the UV purifier is saved.

[0115] Embodiment two

[0116] Figure 4 The UV purifier provided in the embodiment two of the present application comprises a first multi-purifier controller 4.

[0117] Referring to Figure 4The purifier controller 4 comprises a product end controller 21; the control interface further comprises a body control interface 22; the body control interface 22 is connected with the MCU processor 1 and the product end controller 21 respectively. The body control interface 22 is arranged on the main control board 18.

[0118] Here, the product end controller 21 is arranged on the UV purifier, so that the user can directly control the opening or closing of the UV purifier at the product end.

[0119] The product end controller 21 can also receive the maintenance information or fault information sent by the MCU processor 1.

[0120] Figure 5 The UV purifier provided in the second embodiment of the present application comprises a second multi-purifier controller 4.

[0121] In an embodiment, referring to Figure 5 The purifier controller 4 comprises an external controller 23; the control interface further comprises an external control interface 24; the external control interface 24 is connected with the MCU processor 1 and the external controller 23 respectively. The external control interface 24 is arranged on the main control board 18.

[0122] Here, the user can control the opening or closing of the UV purifier through the external controller 23.

[0123] The external controller 23 can also receive the maintenance information or fault information sent by the MCU processor 1.

[0124] Figure 6 The UV purifier provided in the second embodiment of the present application comprises a third multi-purifier controller 4.

[0125] In an embodiment, referring to Figure 6 The purifier controller 4 comprises a product end controller 21 and an external controller 23; the control interface further comprises a body control interface 22 and an external control interface 24; the body control interface 22 is connected with the MCU processor 1 and the product end controller 21 respectively; the external control interface 24 is connected with the MCU processor 1 and the external controller 23 respectively.

[0126] Here, the body control interface 22 and the external control interface 24 are arranged on the main control board.

[0127] The embodiment of the present application provides a UV purifier, comprising: an MCU processor, a controller, a lamp group control circuit and a purification box; wherein the controller is connected with the MCU processor; one end of the lamp group control circuit is connected with the MCU processor, and the other end of the lamp group control circuit is connected with the purification box; at least one group of UV lamp groups are arranged in the purification box; the MCU processor is used for receiving an initial starting signal sent by the controller, determining a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generating a lamp group starting signal according to the initial starting signal, and sending the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit; and the lamp group control circuit is used for starting the corresponding UV lamp group in the purification box according to the to-be-started lamp group number and the lamp group starting signal. In the mode, a plurality of purifier controllers are arranged to realize the function of unified information processing control of a plurality of control ends.

[0128] Embodiment three

[0129] Figure 7 The UV purifier provided by the embodiment three of the present application is shown in the schematic diagram.

[0130] Referring to Figure 7 The controller further comprises an external remote controller 25; the external remote controller 25 is connected with the wired communication bus interface 20.

[0131] The wired communication bus interface 20 is further used for acquiring a remote control signal sent by the external remote controller 25 and sending the remote control signal to the MCU processor 1; the remote control signal is a remote starting signal or a remote closing signal.

[0132] The MCU processor 1 is further used for generating a lamp group starting signal when the remote starting signal is received, and determining that the to-be-started lamp group number is the number of all UV lamp groups.

[0133] The MCU processor 1 is further used for generating a lamp group closing signal when the remote closing signal is received and the initial starting signal is not received, and sending the lamp group closing signal to the lamp group control circuit 2, so as to close all UV lamp groups through the lamp group control circuit 2.

[0134] Here, the user can remotely control the opening or closing of the UV purifier through the external remote controller 25.

[0135] The external remote controller 25 can further receive maintenance information or fault information sent by the MCU processor 1, so as to be remotely viewed by the user.

[0136] The embodiment of the present application provides a UV purifier, comprising: an MCU processor, a controller, a lamp group control circuit and a purification box; wherein the controller is connected with the MCU processor; one end of the lamp group control circuit is connected with the MCU processor, and the other end of the lamp group control circuit is connected with the purification box; at least one group of UV lamp groups are arranged in the purification box; the MCU processor is used for receiving an initial starting signal sent by the controller, determining a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generating a lamp group starting signal according to the initial starting signal, and sending the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit; and the lamp group control circuit is used for starting the corresponding UV lamp group in the purification box according to the to-be-started lamp group number and the lamp group starting signal. In this way, the remote purifier controller is arranged to realize unified information processing control and remote control of multiple control ends.

[0137] Embodiment four

[0138] Figure 8 The flow chart of the control method of the UV purifier provided by the fourth embodiment of the present application.

[0139] With reference to Figure 8 The control method applied to the above UV purifier comprises:

[0140] In step S101, the MCU processor receives an initial starting signal sent by the controller, determines a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generates a lamp group starting signal according to the initial starting signal, and sends the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit.

[0141] In step S102, the lamp group control circuit starts the corresponding UV lamp group in the purification box according to the to-be-started lamp group number and the lamp group starting signal.

[0142] The embodiment of the present application provides a control method of a UV purifier, the UV purifier comprising: an MCU processor, a controller, a lamp group control circuit and a purification box; wherein the controller is connected with the MCU processor; one end of the lamp group control circuit is connected with the MCU processor, and the other end of the lamp group control circuit is connected with the purification box; at least one group of UV lamp groups are arranged in the purification box; the MCU processor is used for receiving an initial starting signal sent by the controller, determining a to-be-started lamp group number according to a preset lamp group starting rule and the initial starting signal, generating a lamp group starting signal according to the initial starting signal, and sending the to-be-started lamp group number and the lamp group starting signal to the lamp group control circuit; and the lamp group control circuit is used for starting the corresponding UV lamp group in the purification box according to the to-be-started lamp group number and the lamp group starting signal. In this way, the UV lamp groups in the UV purifier are grouped, and the workload of the UV lamp groups is intelligently allocated according to actual needs, so that the electric energy is saved, the service life of the UV lamp tube is prolonged, and the use cost of the UV purifier is saved.

[0143] The computer program product provided by the embodiment of the present application comprises a computer readable storage medium storing program codes, and the program codes comprise instructions for executing the method described in the foregoing method embodiments. For details, refer to the method embodiments, which will not be described here.

[0144] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0145] In addition, in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0146] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the part of the present application that essentially contributes to the prior art or the part of the technical solutions can be embodied in the form of software products. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0147] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0148] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any person skilled in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A UV purifier, characterized in that, include: The system comprises an MCU processor, a controller, a lamp control circuit, and a purification chamber; wherein the controller is connected to the MCU processor; one end of the lamp control circuit is connected to the MCU processor, and the other end of the lamp control circuit is connected to the purification chamber; the purification chamber is equipped with at least one set of UV lamps. The MCU processor is used to receive the initial start signal sent by the controller, determine the number of the lamp group to be started according to the preset lamp group start rules and the initial start signal, generate the lamp group start signal according to the initial start signal, and send the number of the lamp group to be started and the lamp group start signal to the lamp group control circuit. The lamp control circuit is used to turn on the corresponding UV lamp in the purification box according to the lamp number to be started and the lamp start signal. The controller includes an air purifier controller and a fan controller; The air purifier controller is used to acquire user input signals, convert the input signals into control signals, and send the control signals to the MCU processor to control the UV lamp group to turn on or off; The fan controller is used to acquire the fan input signal input by the user, convert the fan input signal into a fan control signal, and send the fan control signal to the MCU processor so as to control the UV lamp group to turn on or off through the MCU processor; The initial start signal includes an air purifier start signal; the preset lamp group start rule includes turning on all UV lamp groups when the initial start signal is the air purifier start signal; the initial start signal also includes a fan start signal; the preset lamp group start rule further includes turning on a corresponding number of UV lamp groups when the initial start signal is the fan start signal; to ensure that the lamp group working time of each group of UV lamps is basically the same, the preset lamp group turning order is set to sort the UV lamp groups in order of shortest working time to longest working time, and to turn on the UV lamp group with the shortest working time first.

2. The UV purifier according to claim 1, characterized in that, The UV purifier also includes a control interface, which is connected to the MCU processor and the controller respectively; the control interface includes a purifier interface and a wired communication bus interface, the purifier interface is connected to the purifier controller, and the wired communication bus interface is connected to the fan controller. The air purifier interface is used to receive air purifier control signals sent by the air purifier controller and send the air purifier control signals to the MCU processor; The air purifier control signal is either the air purifier start signal or the air purifier stop signal; The wired communication bus interface is used to receive the fan control signal sent by the fan controller and send the fan control signal to the MCU processor; the fan control signal is the fan start signal and the fan on / off speed signal, or the fan off signal; The MCU processor is also configured to generate the lamp group start signal when the purifier start signal is received, and determine that the lamp group number to be started is the number of all the UV lamp groups; The MCU processor is further configured to generate a lamp group start signal when it receives the fan start signal and the fan opening speed signal, determine the number of lamp groups to be turned on corresponding to the fan opening speed signal according to a preset fan speed-purification volume correspondence rule, determine the lamp group number to be turned on according to a preset lamp group opening sequence and the number of lamp groups to be turned on, so as to turn on the UV lamp group corresponding to the lamp group number to be turned on through the lamp group control circuit. The MCU processor is further configured to generate a lamp group shutdown signal when it receives the purifier shutdown signal or the fan shutdown signal, but does not receive the initial start signal, and send the lamp group shutdown signal to the lamp group control circuit so as to shut down all the UV lamp groups through the lamp group control circuit.

3. The UV purifier according to claim 2, characterized in that, The air purifier controller includes at least one of a product-side controller and an external controller; the control interface also includes at least one of a main body control interface and an external control interface; the main body control interface is connected to the MCU processor and the product-side controller respectively; the external control interface is connected to the MCU processor and the external controller respectively.

4. The UV purifier according to claim 2, characterized in that, The controller also includes an external remote controller; the external remote controller is connected to the wired communication bus interface; The wired communication bus interface is also used to acquire remote control signals sent by the external remote controller and send the remote control signals to the MCU processor; the remote control signals are remote start signals or remote stop signals. The MCU processor is also configured to generate the lamp group start signal when the remote start signal is received, and determine that the lamp group number to be started is the number of all the UV lamp groups; The MCU processor is further configured to generate a lamp group shutdown signal when it receives the remote shutdown signal but does not receive the initial start signal, and send the lamp group shutdown signal to the lamp group control circuit so as to shut down all the UV lamp groups through the lamp group control circuit.

5. The UV purifier according to claim 2, characterized in that, The UV purifier also includes a data storage module; the data storage module is connected to the MCU processor and the controller respectively; The MCU processor is also used to extract the working time of each UV lamp group and the total working time of the purification box from the data storage module after the UV purifier is powered on. When the fan start signal and the fan start gear signal are received, the UV lamps are sorted in order of shortest to longest working time, and the lamp group number corresponding to the number of UV lamps to be turned on is determined as the lamp group number to be turned on. The MCU processor is further configured to, when the UV lamp group starts working, accumulate the real-time working time into the lamp group working time and the total working time of the corresponding UV lamp group, and save the updated lamp group working time and total working time to the data storage module.

6. The UV purifier according to claim 1, characterized in that, The UV purifier also includes a UV lamp encoder; the UV lamp encoder is connected to the MCU processor; the UV lamp assembly includes at least one UV lamp tube; The UV lamp encoder is used to pre-store the total number of UV lamps in the purification box, so that the MCU processor can retrieve it after the UV purifier is powered on.

7. The UV purifier according to claim 6, characterized in that, The UV purifier also includes a power supply voltage acquisition circuit, an analog acquisition circuit, and a UV lamp current information acquisition device; the UV lamp current information acquisition device is connected to the purification box; the analog acquisition circuit is connected to the MCU processor, the power supply voltage acquisition circuit, and the UV lamp current information acquisition device respectively. The UV lamp current information acquisition device is used to acquire the current signal when the purification box is working, and send the current signal to the analog acquisition circuit; The power supply voltage acquisition circuit is used to convert the grid voltage into a voltage signal and send the voltage signal to the analog acquisition circuit; The analog acquisition circuit is used to convert the voltage signal into a power supply voltage value, the current signal into a working current value, and send the power supply voltage value and the working current value to the MCU processor; The MCU processor is used to determine the real-time power of the purification box when it is working based on the power supply voltage value and the operating current value.

8. The UV purifier according to claim 7, characterized in that, The UV purifier also includes a product information output port; the product information output port is connected to the MCU processor. The MCU processor is further configured to determine the current maximum power reference value and the current minimum power reference value based on the pre-stored parameter ratings of a single UV lamp tube and a preset power reference value calculation method; determine the maintenance power range and the fault power range based on the current maximum power reference value and the current minimum power reference value; compare the real-time power with the maintenance power range and the fault power range respectively; when the real-time power is within the maintenance power range, send a maintenance signal to the product information output port; when the real-time power is within the fault power range, send a fault signal to the product information output port. The MCU processor is also used to send the maintenance signal to the product information output port when the total working time of the purification box reaches the preset maintenance cycle.

9. The UV purifier according to claim 8, characterized in that, The UV purifier also includes a maintenance indicator light, a fault indicator light, a running indicator light, and a power indicator light; the maintenance indicator light, the fault indicator light, the running indicator light, and the power indicator light are respectively connected to the product information output port; The MCU processor is also used to send a normal operation signal to the product information output port when the UV purifier is operating normally; and to send a power connection signal to the product information output port when the UV purifier is connected to an external power source. The product information output port is used to illuminate the corresponding indicator light based on the received signal.

10. The UV purifier according to claim 8, characterized in that, The UV purifier also includes a connected wireless communication interface and a GPRS communication module; the wireless communication interface is connected to the MCU processor; the GPRS communication module is connected to the cloud platform. The GPRS communication module is used to obtain the maintenance signal or the fault signal sent by the MCU processor through the wireless communication interface, and send the maintenance signal or the fault signal to the cloud platform.

11. A control method for a UV purifier, characterized in that, The control method is applied to the UV purifier according to any one of claims 1-10; the control method includes: The MCU processor receives the initial start signal sent by the controller, determines the number of the lamp group to be started according to the preset lamp group start rules and the initial start signal, generates a lamp group start signal according to the initial start signal, and sends the number of the lamp group to be started and the lamp group start signal to the lamp group control circuit. The lamp control circuit activates the corresponding UV lamp in the purification box according to the lamp number to be activated and the lamp activation signal.

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