CN216772239U

CN216772239U - Detection device of terminal equipment and control system of central range hood

Info

Publication number: CN216772239U
Application number: CN202220354975.4U
Authority: CN
Inventors: 任富佳; 李海涛; 陈晓伟
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-17
Anticipated expiration: 2032-02-22

Abstract

The utility model provides a detection device of terminal equipment and a control system of a central range hood, comprising: the device comprises an acquisition module and a processing module; the acquisition module is connected with the terminal equipment; the processing module is connected with the acquisition module; the acquisition module is used for acquiring the equipment data of the terminal equipment and outputting the equipment data; the processing module is used for acquiring the equipment data of the terminal equipment and outputting the start-stop state information of the terminal equipment. In the mode, the processing module in the detection device of the terminal equipment can acquire the equipment data of various types of terminal equipment, including a range hood without a built-in air exhaust motor, a range hood with a built-in air exhaust motor or an integrated stove, acquires the equipment data of different terminal equipment and further determines the start and stop states of the terminal equipment, can be compatible with different types of range hoods and integrated stoves, and enhances the universality of a central range hood system on different brands and types of range hoods and integrated stoves.

Description

Detection device of terminal equipment and control system of central range hood

Technical Field

The utility model relates to the technical field of central range hoods, in particular to a detection device of terminal equipment and a control system of a central range hood.

Background

At present, an indoor range hood, a smoke pipe, a check valve and a common flue are generally connected in a high-rise residence, so that oil smoke in a kitchen is exhausted into the common flue through the smoke pipe through the indoor range hood. In order to prevent the oil smoke in the common flue from flowing back to the smoke pipes of other range hoods, the start-stop state of the fan of the range hood needs to be detected, and the rotating speed and frequency of the fan of the central range hood are adjusted. In the related technology, the on-off state of a powered range hood or an integrated stove is detected through an Internet of things control device, and the rotating speed and the frequency of a fan of a central range hood are controlled through the on-off state, so that smoke in a flue is discharged adaptively. However, this method cannot detect the on-off state of the unpowered range hood, and the powered range hood or the integrated stove generates large noise to affect the use feeling of the user although the smoke exhaust effect is good, so that many residents can install the unpowered range hood to reduce noise. Therefore, the central range hood system cannot give consideration to all kinds of range hoods, which results in poor effect of oil smoke absorption and influences the use feeling of users.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a detection device of terminal equipment and a control system of a central range hood, which can be compatible with different types of range hoods and integrated stoves, so that the universality of the central range hood system on different brands and types of range hoods and integrated stoves is enhanced, the effect of absorbing oil smoke is improved, and the user experience is improved.

In a first aspect, an embodiment of the present invention provides a detection apparatus for a terminal device, including: the device comprises an acquisition module and a processing module; the processing module is connected with the acquisition module; the collection module is connected with the terminal equipment, and the terminal equipment comprises: a range hood without a built-in exhaust motor, a range hood with a built-in exhaust motor, or an integrated stove; the acquisition module is used for: acquiring equipment data of terminal equipment and outputting the equipment data; the processing module is used for: and acquiring the equipment data of the terminal equipment and outputting the start-stop state information of the terminal equipment.

Furthermore, the acquisition module comprises a current signal acquisition unit and a voltage signal acquisition unit; the processing module is respectively connected with the current signal acquisition unit and the voltage signal acquisition unit; the current signal acquisition unit is connected with a range hood or an integrated stove with an exhaust motor arranged inside; the voltage signal acquisition unit is connected with a range hood without a built-in exhaust motor; the current signal acquisition unit is used for: detecting the load current of a range hood or an integrated stove with an exhaust motor inside and sending the load current to a processing module; the voltage signal acquisition unit is used for: and detecting an output signal of the range hood without the built-in exhaust motor.

Further, the voltage signal acquisition unit includes: the circuit comprises a diode, a first resistor and a pi-type RC filter circuit; the pi-type RC filter circuit comprises a first capacitor, a second resistor and a second capacitor which are connected in sequence; the cathode of the diode is connected with a range hood without a built-in exhaust motor; the anode of the diode is respectively connected with the first resistor, the second resistor and the second capacitor; the other end of the first resistor is connected with a power supply; the first capacitor and the second capacitor are respectively grounded; the processing module is further configured to: and acquiring a switch signal output by the range hood without the built-in exhaust motor at the cathode of the diode, acquiring a voltage signal at a specified position in the gear detection circuit, and outputting start-stop state information of the range hood without the built-in exhaust motor.

Further, the switching signal includes: passive switching signals and active switching signals; the processing module is further configured to: acquiring a passive switching signal or a passive switching signal output by a range hood without a built-in exhaust motor at the cathode of the diode; acquiring a voltage signal at the middle position of a first capacitor and a second resistor; if the voltage signal is low level, outputting the starting and stopping state information of the range hood without the built-in exhaust motor to be in a starting state; and if the voltage signal is at a high level, outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a stop state.

Further, the switching signal includes: an active pulse train signal; the processing module is further configured to: acquiring the high level quantity and the low level quantity of the active pulse sequence signal at the cathode of the diode, and outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a start state if the high level quantity and the low level quantity are both greater than zero; and if the number of the high levels is greater than zero and the number of the low levels is equal to zero, outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a stop state.

Further, the processing module is further configured to: receiving load current, and outputting start-stop state information of a range hood or an integrated stove with an exhaust motor built in as a start state if the load current meets a target threshold; and if the load current does not meet the target threshold value, outputting the start-stop state information of the range hood or the integrated stove with the built-in exhaust motor as a stop state.

Further, the apparatus further comprises: a sensor module; the sensor module is arranged at the outlet of the corresponding household flue; the sensor module is connected with the processing module; the sensor module is used for: detecting a wind pressure signal of a resident flue and sending the wind pressure signal to a processing module; the processing module is further configured to: receiving a wind pressure signal, and outputting the start-stop state information of a range hood or an integrated stove with an exhaust motor built in as an open state if the wind pressure signal meets a preset wind pressure signal; and if the wind pressure signal does not meet the preset wind pressure signal, outputting the start and stop state information of the range hood or the integrated stove with the built-in exhaust motor as a stop state.

Further, the device also comprises an air valve driving module; the air valve driving module is respectively connected with the processing module and the corresponding air valve; the air valve is arranged at the outlet of the flue of the corresponding household; the processing module is further configured to: sending a start-stop state signal of the terminal equipment to an air valve driving module; the air valve determination module is used for controlling the angle of the air valve.

Furthermore, the device also comprises a wired communication module, and the wired communication module is connected with the processing module.

Further, the device also comprises a detachable wireless communication module; the wireless communication module is connected with the processing module.

In a second aspect, an embodiment of the present invention provides a control system of a central extractor hood, where the system includes at least one detection device of the terminal device of the first aspect, a control device of the central extractor hood, a terminal device, and a central extractor hood; the detection device of the terminal equipment is respectively connected with the control device of the central range hood and the terminal equipment; the control device of the central range hood is connected with the central range hood; the central range hood is arranged at an outlet of the common flue; the terminal equipment is arranged at an outlet of a household flue; the detection device of the terminal equipment is used for: sending a start-stop state signal of the terminal equipment to a control device of the central range hood; the control device of the central range hood is used for: receiving a start-stop state signal of the terminal equipment, which is sent by a detection device of the terminal equipment; and outputting a control signal to control the rotating speed and frequency of a fan of the central range hood.

Furthermore, the control device of the central range hood comprises a wired communication module and a detachable wireless communication module; the control device of the central range hood is in communication connection with the detection device of the terminal equipment through a wired communication module and/or a wireless communication module; the processing modules of the detection device of each terminal device are in communication connection through the wireless communication module; the processing module of the detection device of the terminal equipment is further used for: and receiving the start-stop state signal of the terminal equipment, which is sent by the processing module of the detection device of other terminal equipment.

Further, the system also comprises a cloud platform; the control device of the central range hood is in communication connection with the cloud platform; a processing module of a detection device of the terminal equipment is in communication connection with the cloud platform; the control device of the central range hood is used for sending the working data of the central range hood to the cloud platform, and the processing module of the detection device of the terminal equipment is used for sending the working data of the terminal equipment to the cloud platform, so that the cloud platform can remotely operate the central range hood and the terminal equipment.

The embodiment of the utility model brings the following beneficial effects:

the utility model provides a detection device of terminal equipment and a control system of a central range hood, comprising: the device comprises an acquisition module and a processing module; the acquisition module is connected with the terminal equipment; the processing module is connected with the acquisition module; the acquisition module is used for acquiring the equipment data of the terminal equipment and outputting the equipment data; the processing module is used for acquiring the equipment data of the terminal equipment and outputting the start-stop state information of the terminal equipment. In the mode, processing module in the detection device of the terminal equipment can acquire the equipment data of various types of terminal equipment, including the range hood without built-in air exhaust motor, the built-in range hood with the air exhaust motor, or the integrated kitchen, acquire the equipment data of different terminal equipment and then determine the start-stop state of the terminal equipment, can be compatible with different types of range hoods and integrated kitchens, and enhances the universality of the central range hood system to different brands and types of range hoods and integrated kitchens, thereby improving the effect of oil smoke absorption and the use feeling of users.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a terminal device detection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another terminal device detection apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another interface circuit according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another terminal device detection apparatus according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a communication device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of another communication device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a control system of a central range hood according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of another control system of a central range hood according to an embodiment of the present invention.

Icon: 100-an acquisition module; 101-a voltage acquisition signal unit; 102-a current acquisition signal unit; 200-a processing module; 300-a terminal device; 301-extractor hood without built-in exhaust motor; 302-a range hood with an exhaust motor; 303-integrated cooker; 400-a sensor module; 500-an air valve driving module; 600-blast gate; 700-a wired communication module; 800-a wireless communication module; 900-terminal equipment detection means; 1000-central extractor hood control device; 1100-central smoke exhaust ventilator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments and features of the embodiments described below can be combined with each other without conflict.

At present, most of high-rise houses adopt an indoor range hood, a smoke pipe, a check valve and a public flue to be connected, so that oil smoke in a kitchen is discharged into the public flue through the indoor range hood and the smoke pipe. Because different kinds of lampblack machines are usually installed in different residents, pressure distribution in a common flue is uneven, smoke exhaust is not smooth, the current situations of good high-rise smoke exhaust effect and poor bottom smoke exhaust effect occur, and particularly the bottom smoke exhaust effect is poorer in the peak cooking period. In addition, the check valve plate is not closed tightly, and the problems of smoke return and odor tainting are easily caused. In addition, in order to enable the range hood to generate large air pressure and large air volume, the range hood needs to improve power, and further, the generated noise is increased; however, after the technology is developed to a certain stage, the improvement of large air volume and large air pressure and the reduction of noise become contradictions, and the air volume and the air pressure cannot be increased by improving the power.

In order to solve the problems of unsmooth smoke discharge and high noise of oil smoke, the central range hood can be placed at the top end of the public flue, a fan of the central range hood generates power, and the flow of each floor is uniformly distributed by matching with the adjustment of the angle of a power distribution valve at the joint of a kitchen smoke pipe and the public flue in a household, so that the aims of smoothly discharging smoke and reducing noise are fulfilled. In order to prevent the oil smoke in the common flue from flowing back to the smoke pipes of other range hoods, the start-stop state of the fan of the range hood needs to be detected, and the rotating speed and frequency of the fan of the central range hood are adjusted. In the related technology, the on-off state of a powered range hood or an integrated stove is detected through an Internet of things control device, and the rotating speed and the frequency of a fan of a central range hood are controlled through the on-off state, so that smoke in a flue is discharged adaptively. However, this method cannot detect the on-off state of the unpowered range hood, and the powered range hood or the integrated stove generates large noise to affect the use feeling of the user although the smoke exhaust effect is good, so that many residents can install the unpowered range hood to reduce noise. Therefore, the central range hood system cannot give consideration to all kinds of range hoods, which results in poor effect of oil smoke absorption and influences the use feeling of users.

Based on the problems, the utility model provides a detection device of terminal equipment and a control system of a central range hood.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1, the device comprises an acquisition module 100 and a processing module 200, wherein the processing module 200 is connected with the acquisition module 100; the acquisition module 100 is connected with the terminal equipment 300; the terminal device 300 includes: a range hood 301 without a built-in exhaust motor, a range hood 302 with a built-in exhaust motor or an integrated stove 303; the acquisition module 100 is configured to: acquiring a signal of the operating state of the terminal device 300, and transmitting the signal to the processing module 200; the processing module 200 is configured to: and receiving the state signal of the terminal device 300 and outputting the start-stop state information of the terminal device 300.

The terminal equipment is installed in a household, and can be a terminal machine, a range hood or an integrated stove; the terminal machine can be a range hood without a built-in exhaust motor, and the range hood without the built-in exhaust motor solves the problem of high noise of a kitchen in a household because the range hood without the built-in exhaust motor does not have the exhaust motor; the range hood can be a range hood with an internal exhaust motor, can be machine types of different brands and different models, the integrated stove can be a range hood with an internal exhaust motor, and can be integrated with other kitchen appliances into a whole, such as a multifunctional kitchen appliance integrated with a range hood, a gas stove and a steaming and baking integrated machine, and in addition, the other kitchen appliances can be one or more of a dish-washing machine, a disinfection cabinet, a storage cabinet and the like.

In the device, a detection device of the terminal equipment comprises a processing module, the processing module can acquire various types of data information, wherein the data can be gear switch information of the terminal equipment, running current information of the terminal equipment, working state information of an exhaust motor and the like, and the acquisition module is linked with the processing module and transmits the acquired data information to the processing module; the acquisition module acquires data and then determines the starting and stopping states of the terminal equipment, and the terminal equipment can be compatible with different types of range hoods and integrated cookers, so that the universality of a central range hood system on different brands and types of range hoods and integrated cookers is enhanced, the effect of oil smoke absorption is improved, and the use feeling of a user is improved.

Referring to fig. 2, the acquisition module 100 includes a voltage signal acquisition unit 101 and a current signal acquisition unit 102; the processing module 200 is respectively connected with the current signal acquisition unit 102 and the voltage signal acquisition unit 101; wherein, the current signal acquisition unit 102 is connected with a range hood 302 or an integrated stove 303 with an exhaust motor arranged inside; the current signal collecting unit 102 is configured to: acquiring a load current signal of a range hood or an integrated stove with an exhaust motor inside, and sending the load current to a processing module; voltage signal acquisition unit 101 is connected with range hood 301 that does not have built-in air exhaust motor, and voltage signal acquisition unit 101 is used for: and detecting an output signal of the range hood without the built-in exhaust motor.

When the range hood without the built-in exhaust motor works, the working gear switch is in a switch-on state, the corresponding voltage signal acquisition unit receives a voltage signal, the signal is output through an interface circuit of the voltage signal acquisition unit, and the signal is transmitted to the processing module; in another possible implementation mode, when the integrated cooker is in a working state, the current signal acquisition unit connected with the integrated cooker receives a working current signal of the integrated cooker and outputs the working current signal of the integrated cooker to the processing module.

The voltage signal acquisition unit includes: the circuit comprises a diode, a first resistor and a pi-type RC filter circuit; the pi-type RC filter circuit comprises a first capacitor, a second resistor and a second capacitor which are connected in sequence; the cathode of the diode is connected with a range hood without a built-in exhaust motor; the anode of the diode is respectively connected with the first resistor, the second resistor and the second capacitor; the other end of the first resistor is connected with a power supply; the first capacitor and the second capacitor are respectively grounded. The processing module is further configured to: and acquiring a switch signal output by the range hood without the built-in exhaust motor at the cathode of the diode, acquiring a voltage signal at a specified position in the gear detection circuit, and outputting start-stop state information of the range hood without the built-in exhaust motor.

Referring specifically to FIG. 3, a range switch interface circuit is illustrated, wherein: diode D1, first resistance R1 and pi type RC filter circuit, wherein, first resistance R1 also is called pull-up resistance, wherein, pi type RC filter circuit includes: the second capacitor C2, the second resistor R2 and the first capacitor C1; the anode of the diode is connected with the first resistor, the second resistor and the second capacitor respectively, the other end of the second resistor is connected with the first capacitor, the other end of the first resistor is connected with the power supply, and the other ends of the first capacitor and the second capacitor are grounded. As shown in fig. 3, after the negative electrode of the diode inputs the switching signal of the range hood without the built-in exhaust motor, the start-stop state information of the range hood without the built-in exhaust motor is output through the gear switch interface circuit, wherein the start-stop state information includes gear information.

In one possible embodiment, the switching signal includes: passive switching signals and active switching signals; the processing module is further configured to: acquiring a passive switching signal or a passive switching signal output by a range hood without a built-in exhaust motor at the cathode of the diode; acquiring a voltage signal at the middle position of a first capacitor and a second resistor; if the voltage signal is low level, outputting the starting and stopping state information of the range hood without the built-in exhaust motor to be in a starting state; and if the voltage signal is in a high level, outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a stop state.

With continued reference to fig. 3, the interface circuit is used to uniformly identify the input signal as a high/low level signal through the interface circuit, where the input signal may be a passive switching signal or an active switching signal, and the identification process is as follows:

in one case, the input signal received by the point A is a passive switching signal, namely the input of the point A is short-circuited or disconnected with the ground; firstly, when the input of the point A is in short circuit with the ground, namely the input of the point A is in low level of 0V, the diode D1 is conducted in the forward direction, the power supply voltage passes through the first resistor R1 and the second resistor R2, the voltage drop is 0.3V-0.6V, and the output of the point C is in low level; secondly, when the point A input is disconnected with the ground, namely the point A input is suspended, and at the moment, the point C output is at a high level due to the action of a pull-up resistor R1.

In another case, the input signal received at point a is an active switching signal, that is, the input at point a is at a high level of a voltage of 3.3V or more, in the first case, when the input at point a is at a low level, the diode D1 is turned on in the forward direction, the power supply voltage passes through the first resistor R1 and the second resistor R2, the voltage drop is 0.3V to 0.6V, and the output at point C is at a low level; second, when the input at point a is low, the diode D1 is turned off in the reverse direction, and the output at point C is maintained at high level by the pull-up resistor R1.

Through the reverse cut-off characteristic of the diode D1, the circuit ingeniously realizes the compatibility of 3.3V/5V levels, can be compatible with different types of range hoods and integrated stoves, and enhances the universality of the central range hood system on different brands and types of range hoods and integrated stoves.

In another possible embodiment, the switching signal includes: an active pulse train signal; the processing module is further configured to: acquiring the high level quantity and the low level quantity of the active pulse sequence signal at the cathode of the diode, and outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a start state if the high level quantity and the low level quantity are both greater than zero; and if the number of the high levels is greater than zero and the number of the low levels is equal to zero, outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a stop state.

Referring to fig. 3, when the input signal received at point a is an active pulse sequence, that is, the sequence high and low levels of the voltage above 3.3V input at point a, the high and low level identification logic is the same as the identification logic when the active switch signal is input at point a;

because the acquisition module is connected with the processing module, the acquisition module transmits the high and low level information output by the point C to the processing module, and the processing module receives the high and low level information.

The processing module comprises a counting module, the counting module is used for counting high and low levels in a certain time when the input of the point A is an active pulse sequence, if the high level and the low level are both greater than 0, a gear closing signal is output, and if the high level is greater than 0, the low level is equal to 0, a gear opening signal is output.

In the device, input signals of different forms are converted into high and low levels, so that equipment for receiving and sending signals is simplified, misoperation generated in the transmission process is avoided, the reliability of the device is improved, meanwhile, the device is compatible with different types of range hoods and integrated stoves, the universality of a central range hood system on different brands and types of range hoods and integrated stoves is enhanced, and the effect of oil smoke absorption and the use feeling of a user are improved.

The gear of the terminal equipment can be divided into 5 gears which are respectively as follows: VCC, 3 (quick-fried), 2 (strong), 1 (weak), GND; the device receives gear information and adopts 5 line system modes, and every kind of different gears corresponds exclusive interface circuit promptly, through gathering the different signal of gear information output, can accurate discernment lampblack absorber and integrated kitchen gear, has strengthened the universality of central range hood system to different brands and type lampblack absorber, integrated kitchen, has improved the effect of inhaling oil smoke to and user's use is felt.

The processing module is further configured to: receiving load current, and outputting start-stop state information of a range hood or an integrated stove with an exhaust motor built in as a start state if the load current meets a target threshold; and if the load current does not meet the target threshold value, outputting the start-stop state information of the range hood or the integrated stove with the built-in exhaust motor as a stop state.

In one possible embodiment, the load current target threshold may be set to be not less than 0.8A, that is, when the load current is less than 0.8A, the load current target threshold is not satisfied, and when the load current is equal to or greater than 0.8A, the load current target threshold is satisfied; when the range hood with the built-in exhaust motor is only provided with the lighting lamp to be turned on, the power of the lighting lamp is generally 20W, the load current is about 0.1A, the processing module receives a load current signal of 0.1A and does not meet a load current target threshold, and the starting and stopping state of the range hood with the built-in exhaust motor is output to be a stopping state; when the range hood with the built-in exhaust motor starts the exhaust motor to work, the power of the exhaust motor is generally 200W, the load current is about 0.9A at the moment, the processing module receives a load current signal of 0.9A, the target threshold value of the load current is met, and the start-stop state of the range hood with the built-in exhaust motor is output to be a start state.

As shown in fig. 4, the above apparatus further includes: a sensor module 400; the sensor module 400 is installed at the outlet of the corresponding household flue, the sensor module can be a wind pressure sensor, the wind pressure sensor collects pressure signals, when the terminal equipment works, the household flue has gas flowing through, and the gas acts on the pressure sensor; the sensor module 400 is connected with the processing module 200, and the wind pressure sensor sends a pressure signal to the processing module; the processing module is further used for receiving the wind pressure signal, and presetting a wind pressure target threshold, wherein the wind pressure target value can be 200Pa, namely the pressure signal is greater than 200Pa, and the wind pressure target value is met, and if the pressure signal is less than or equal to 200Pa, the wind pressure target value is not met; the built-in range hood during operation that has the motor of airing exhaust on the market at present wind pressure generally is greater than 300Pa, and when the built-in range hood during operation that has the motor of airing exhaust, the pressure signal of wind pressure sensor collection is 300Pa, with pressure signal transmission to processing module, processing module receives pressure signal 300Pa, is greater than above-mentioned wind pressure target value, and processing module outputs the built-in range hood that has the motor of airing exhaust and stops the state and be the open mode.

It should be noted that the sensor module can be any module capable of collecting parameters (such as wind pressure, wind speed, temperature, acceleration, particulate matter concentration, etc.) associated with the fan of the range hood.

Among the above-mentioned device, through mutually supporting of current signal acquisition unit and sensor module, reach the purpose of the accurate discernment of gear switch, reduced the malfunction, reduced user's the use degree of difficulty, promoted user experience.

With continued reference to fig. 4, the apparatus further includes a damper drive module 500; the air valve driving module 500 is connected with the processing module 200, the processing module outputs the start and stop state information of the terminal equipment after receiving signals including voltage, current, pressure and the like acquired by the acquisition module, the processing module transmits the start and stop state information of the terminal equipment to the air valve driving module, and the air valve driving module is also connected with the air valve 600; when the air valve driving module receives the information that the terminal equipment is in the opening state, the air valve opening signal is output, the corresponding air valve is opened, smooth oil smoke discharge is guaranteed, when the air valve driving module receives the information that the terminal equipment is in the closing state, the air valve closing signal is output, the corresponding air valve is kept closed, and the oil smoke in the public flue is prevented from flowing backwards.

Furthermore, the gear of the terminal equipment can be divided into 5 gears, the air valve driving module can control the opening angle of the air valve according to the received information of the starting states of different gears, namely when a range hood with an exhaust motor arranged inside is opened in 3 gears (stir-frying), the acquisition module transmits signals to the processing module, the processing module transmits the signals to the air valve driving module, and the air valve driving module controls the air valve to be opened completely to keep oil smoke discharged smoothly; when a range hood with an exhaust motor arranged inside is started at a 1-gear (weak gear), the acquisition module transmits signals to the processing module, the processing module transmits the signals to the air valve driving module, and the air valve driving module controls the air valve to be opened by 30 degrees, so that a smoke exhaust channel is reduced, the air speed in a resident flue is increased, the pressure is increased, and the oil smoke in a public flue is prevented from flowing backwards;

the air valve driving module is used for outputting an air valve switch signal and further outputting an air valve opening angle signal, so that the control of air pressure and air speed in a residential flue is realized, a more refined control mode of the air speed and the air pressure of the flue is realized by means of the device, the energy is saved, the problem of gas recharge in the flue is effectively reduced, the user experience is improved, and the cost is reduced.

With continued reference to fig. 4, the apparatus further includes a wired communication module 700, which is connected to the processing module.

In addition, the device also comprises a detachable wireless communication module 800; the wireless communication module is connected with the processing module.

Referring to fig. 5, the communication module is connected to the processing module, wherein the communication module includes a wired communication module and a wireless communication module; the wired communication module CAN adopt a CAN (Controller Area Network) mode or an RS485 mode; the wireless communication module may select one mode of 2G/3G/4G/5G (Generation mobile communication system, second Generation mobile communication system/third Generation mobile communication system/fourth Generation mobile communication system/fifth Generation mobile communication system), NB-IoT (Narrow Band Internet of Things), LoRa (Long Range Radio), WiFi (wireless communication technology), BT (Bit Torrent, a communication protocol), ZigBee (a low speed short distance transmission wireless Internet protocol).

Referring to fig. 6, the communication module adopts a design mode that a board card can be replaced, the device of the terminal device specifies an interface definition and an interface mode of a bottom plate and the board card, and the board card interface adopts a 4-wire system mode, namely VCC, TXD/SDA, RXD/SCL and GND; the interface mode can adopt a 3.3V/5V level UART communication interface and can also adopt an I2C communication interface; the board card interface has compatibility in the aspect of hardware, a software communication protocol can be automatically identified, the purpose of replacing different communication modes can be achieved by replacing the board card, meanwhile, the cost is reduced, and the resource space is saved.

The processing module CAN be connected with various communication modules, see fig. 6, the communication module that the processing module connects has 2G/3G/4G/5G board mount, RS485 board mount, in addition, the processing module is also connected with the board mount that CAN change communication module, the board mount that CAN change communication module CAN select one of NB-IoT (Narrow Band Internet of Things), Long Range Radio, WiFi (wireless communication technology), BT (Bit Torrent, a communication protocol), ZigBee (a low-speed short-distance transmission wireless Internet protocol), CAN (Controller Area Network ), through changing the board mount, CAN reach the purpose of changing different communication modes, and reduce cost and save resource space.

Wherein, under the wiFi mode, can borrow the intelligent kitchen electrical apparatus that wiFi network and take wiFi communication function to carry out intelligent linkage, for example: when the gas stove works, the communication module receives a working signal of the gas stove and transmits the signal to the processing module, and the processing module outputs a signal to control the air valve to act so as to achieve the effect of automatic smoke exhaust; furthermore, the WiFi mode also comprises an STA mode or an AP mode, wherein in the AP mode, the communication module can provide a hot spot, network sharing is realized under the condition that no network foundation exists, and the purpose of communication with an intelligent kitchen appliance with the WiFi communication function is achieved.

The communication module adopts the mode that can change the integrated circuit board, has realized the convertibility of communication standard, under the condition that terminal equipment changed, can reach the purpose of renewal through only changing the communication integrated circuit board, has practiced thrift the cost, has possessed the universality to different brands and type lampblack absorber, integrated kitchen, has promoted user experience.

Further, the communication module supports a 2G/3G/4G/5G communication function, and as shown in fig. 6, the processing module is connected to the 2G/3G/4G/5G board, the processing module can communicate with the cloud platform through a public network, and the communication module can acquire data of the central range hood or the terminal device, and can send the data to the cloud platform in real time or at regular time; the cloud platform can remotely operate, debug, diagnose and the like the central range hood or the terminal equipment, reduces the operation and maintenance cost and realizes intelligent operation and maintenance.

An embodiment of the present invention provides a control system of a central extractor hood, as shown in fig. 7, the system includes at least one detection device 900 of a terminal device of the first aspect, at least one terminal device 300 of the first aspect, a control device 1000 of the central extractor hood, and a central extractor hood 1100; the central range hood is arranged at an outlet of the common flue; the terminal equipment is arranged at an outlet of a household flue; the detection device of the terminal equipment is respectively connected with the control device of the central range hood and the terminal equipment, and the detection device of the terminal equipment can receive one or more of a gear signal of the terminal equipment, a current signal of the terminal equipment, a wind pressure signal in an air duct, a working signal of an intelligent kitchen appliance and the like; the control device of the central range hood is connected with the central range hood; when the terminal equipment works, the terminal equipment detection device receives a terminal equipment starting signal and transmits the signal to the control device of the central range hood, the control device of the central range hood adjusts the rotating speed and the frequency of the central range hood according to the starting number of the terminal equipment and the specific starting gear of the terminal equipment, the working state of the central range hood is changed, the wind speed and the wind pressure in the public flue are further changed, the oil smoke is guaranteed to be smoothly discharged, and the user experience is improved.

A specific embodiment, as shown in fig. 8, is a system in which: the main machine is equivalent to a central range hood, the internet of things control device is equivalent to a processing module and an air valve driving module, one or more terminal device detection devices, one or more corresponding terminal devices, one or more corresponding air valve driving modules, and the power distribution valve is equivalent to an air valve, a terminal machine, a range hood and an integrated stove, namely the terminal device; under one condition, when the terminal equipment of a resident 1 is in a gear 3 (quick-frying) mode, the corresponding Internet of things control device detects that the terminal is started, information is sent to the central air-conditioning control device, the central air-conditioning control device controls the host to be started, and meanwhile, the Internet of things control device controls the opening angle of the air valve to be 90 degrees; after a period of time, the terminal equipment of the household 2 is started, the corresponding Internet of things control device detects the start of the terminal equipment and sends information to the central air-conditioning control device, the central air-conditioning control device controls the host to increase the frequency, increase the rotating speed and improve the air speed of the public flue, and meanwhile, the Internet of things control device controls the air valve to be opened, so that the oil smoke is guaranteed to be smoothly discharged; after a period of time, the terminal equipment of resident 1 is closed, and it is in the stop state to correspond thing allies oneself with controlling means and detect terminal equipment, with information transmission to central air conditioning controlling means, and central air conditioning controlling means control host computer reduces the frequency, reduces the rotational speed, guarantees under the prerequisite of effective oil extraction cigarette, has practiced thrift the energy, and simultaneously, thing allies oneself with controlling means control blast gate and closes, and at this moment, the blast gate is equivalent to the check valve, prevents that public flue's oil smoke from flowing backward, has promoted user experience.

The control system of the central range hood outputs signals to the central range hood, changes the rotating speed and frequency of the central range hood, changes the wind pressure and wind speed of the common flue, outputs signals to the air valve, changes the state of the air valve, adjusts the oil smoke exhaust capacity of each house, and combines the air valve and the air valve to achieve the effect of efficiently exhausting oil smoke; and according to the state of the terminal equipment, the running state of the system is adjusted, the uniform adjustment of the flow of residents on different floors is realized, the oil smoke is efficiently discharged, the resistance of a common flue is reduced, the problems of unsmooth smoke discharge and smoke return are solved, the system is efficiently utilized, the energy is saved, and the user experience is improved.

Furthermore, the control device of the central range hood comprises a wired communication module and a detachable wireless communication module, wherein the wired communication module CAN adopt a CAN (Controller Area Network) mode or an RS485 mode; the wireless communication module may select one mode of 2G/3G/4G/5G (Generation mobile communication system, second Generation mobile communication system/third Generation mobile communication system/fourth Generation mobile communication system/fifth Generation mobile communication system), NB-IoT (Narrow Band Internet of Things), LoRa (Long Range Radio), WiFi (wireless communication technology), BT (Bit Torrent, a communication protocol), ZigBee (a low speed short distance transmission wireless Internet protocol), and the control device of the central Range hood may adopt one or more of the above communication modes; the control device of the central range hood is in communication connection with the detection device of the terminal equipment through a wired communication module and a wireless communication module, and information interaction is carried out between the control device of the central range hood and the detection device of the terminal equipment through the communication module; the processing modules of the detection devices of each terminal device are in communication connection through the wireless communication module, and the detection devices of the terminal devices can also carry out information interaction; the processing module of the detection device of the terminal equipment is further used for: and receiving the start-stop state signal of the terminal equipment, which is sent by the processing module of the detection device of other terminal equipment.

As shown in fig. 8, the control system of the central extractor hood further includes a cloud platform, the control device of the central extractor hood may be in communication connection with the cloud platform through a 2G/3G/4G/5G network, and the control device of the central extractor hood sends information to the cloud platform through the network, where the information includes an operation state of the central extractor hood, and an operation parameter, such as a rotation speed and a frequency; the detection device of the terminal equipment can also perform information interaction with the cloud platform through a 2G/3G/4G/5G network, the terminal equipment can transmit the collected terminal equipment operation data to the cloud platform, the cloud platform can analyze whether the whole device and the system have faults or not by combining with parameter analysis uploaded by the central range hood, if the device and the system have the faults, the cloud platform can perform remote operation, the faults are checked and eliminated, the workload of offline personnel is reduced, the cost is saved, and intelligent operation and maintenance are realized.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detection device of a terminal device, comprising: the device comprises an acquisition module and a processing module; the processing module is connected with the acquisition module; the collection module is connected with the terminal equipment, and the terminal equipment comprises: a range hood without a built-in exhaust motor, a range hood with a built-in exhaust motor, or an integrated stove;

the acquisition module is used for: acquiring equipment data of the terminal equipment and outputting the equipment data;

the processing module is used for: and acquiring the equipment data of the terminal equipment and outputting the start-stop state information of the terminal equipment.

2. The device of claim 1, wherein the collection module comprises a current signal collection unit and a voltage signal collection unit; the processing module is respectively connected with the current signal acquisition unit and the voltage signal acquisition unit;

the current signal acquisition unit is connected with the range hood with the built-in exhaust motor or the integrated stove; the voltage signal acquisition unit is connected with the range hood without the built-in exhaust motor;

the current signal acquisition unit is used for: detecting the load current of the range hood with the built-in exhaust motor or the integrated stove, and sending the load current to the processing module;

the voltage signal acquisition unit is used for: and detecting an output signal of the range hood without the built-in exhaust motor.

3. The apparatus of claim 2, wherein the voltage signal acquisition unit comprises: the filter comprises a diode, a first resistor and a pi-type RC filter circuit; the pi-type RC filter circuit comprises a first capacitor, a second resistor and a second capacitor which are connected in sequence;

the cathode of the diode is connected with the range hood without the built-in exhaust motor; the anode of the diode is respectively connected with the first resistor, the second resistor and the second capacitor; the other end of the first resistor is connected with a power supply; the first capacitor and the second capacitor are respectively grounded;

the processing module is further configured to: and acquiring a switch signal output by the range hood without the built-in exhaust motor at the cathode of the diode, acquiring a voltage signal at a specified position in the gear detection circuit, and outputting start-stop state information of the range hood without the built-in exhaust motor.

4. The apparatus of claim 3, wherein the switching signal comprises: passive switching signals and active switching signals;

the processing module is further configured to: acquiring a passive switching signal or a passive switching signal output by the range hood without the built-in exhaust motor at the cathode of the diode;

acquiring a voltage signal at the middle position between the first capacitor and the second resistor; if the voltage signal is at a low level, outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a start state; and if the voltage signal is at a high level, outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a stop state.

5. The apparatus of claim 3, wherein the switching signal comprises: an active pulse train signal;

the processing module is further configured to: acquiring the high level quantity and the low level quantity of the active pulse sequence signals at the cathode of the diode, and outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a start state if the high level quantity and the low level quantity are both greater than zero; and if the high level number is larger than zero and the low level number is equal to zero, outputting the start-stop state information of the range hood without the built-in exhaust motor to be in a stop state.

6. The apparatus of claim 2, wherein the processing module is further configured to: receiving the load current, and outputting the starting and stopping state information of the range hood with the built-in exhaust motor or the integrated stove to be in a starting state if the load current meets a target threshold;

and if the load current does not meet the target threshold value, outputting the start-stop state information of the range hood with the built-in exhaust motor or the integrated kitchen to be a stop state.

7. The apparatus of claim 6, further comprising: a sensor module; the sensor modules are installed at the outlets of the corresponding household flues; the sensor module is connected with the processing module;

the sensor module is to: detecting a wind pressure signal of the household flue and sending the wind pressure signal to the processing module;

the processing module is further configured to: receiving the wind pressure signal, and outputting the starting and stopping state information of the range hood with the built-in exhaust motor or the integrated stove to be in an opening state if the wind pressure signal meets a preset wind pressure signal;

if the wind pressure signal does not satisfy the preset wind pressure signal, outputting the range hood with the built-in exhaust motor or the start-stop state information of the integrated kitchen range to be in a stop state.

8. The device of claim 1, further comprising a damper drive module; the air valve driving module is respectively connected with the processing module and the corresponding air valve; the air valve is arranged at the outlet of the flue of the corresponding household;

the processing module is further configured to: sending a start-stop state signal of the terminal equipment to the air valve driving module; the air valve driving module is used for controlling the angle of the air valve.

9. The apparatus of claim 1, further comprising a wired communication module coupled to the processing module.

10. The apparatus of claim 1, further comprising a detachable wireless communication module; the wireless communication module is connected with the processing module.

11. A control system of a central extractor hood, characterized in that the system comprises at least one detection device of a terminal device according to claims 1 to 10, a control device of the central extractor hood, the terminal device, and the central extractor hood; the detection device of the terminal equipment is respectively connected with the control device of the central range hood and the terminal equipment; the control device of the central range hood is connected with the central range hood;

the central range hood is arranged at an outlet of the common flue; the terminal equipment is arranged at an outlet of a flue of a resident;

the detection device of the terminal equipment is used for: sending a start-stop state signal of the terminal equipment to a control device of the central range hood;

the control device of the central range hood is used for: receiving a start-stop state signal of the terminal equipment, which is sent by a detection device of the terminal equipment; and outputting a control signal to control the rotating speed and frequency of the fan of the central range hood.

12. The system of claim 11, wherein the control device of the central range hood comprises a wired communication module and a detachable wireless communication module;

the control device of the central range hood is in communication connection with the detection device of the terminal equipment through the wired communication module and/or the wireless communication module;

the processing modules of the detection device of each terminal device are in communication connection through the wireless communication module; the processing module of the detection device of the terminal equipment is further used for: and receiving the start-stop state signal of the terminal equipment, which is sent by the processing module of the detection device of other terminal equipment.

13. The system of claim 12, further comprising a cloud platform; the control device of the central range hood is in communication connection with the cloud platform; a processing module of the detection device of the terminal equipment is in communication connection with the cloud platform; the control device of the central range hood is used for sending the working data of the central range hood to the cloud platform, and the processing module of the detection device of the terminal equipment is used for sending the working data of the terminal equipment to the cloud platform, so that the cloud platform can remotely operate the central range hood and the terminal equipment.