Wireless communication channel frequency hopping method and system for range hood

Abstract

The application provides a wireless communication channel frequency hopping method and system of an extractor hood, comprising the following steps: when the host or the LORA communication module of the air valve of each floor continuously receives wireless same-frequency signals of an external device for multiple times, the host determines that there is interference; the host sends frequency point changing command information to the LORA communication module of the air valve of each floor in a polling mode through the LORA communication module of the host; each floor air valve automatically switches to the adjusted wireless frequency point according to the frequency point changing command information, and sends the adjusted state to the host in a polling mode through the LORA communication module of each floor air valve; when there is no interference of wireless same-frequency signals, the host sends query instruction information to the LORA communication module of the air valve of each floor in a polling mode through the LORA communication module of the host; and the LORA communication module of the air valve of each floor sends the state of the air valve of each floor to the host in a polling mode according to the query instruction information.

Description

TECHNICAL FIELD

[0001] The present application relates to the communication technology field of intelligent kitchen utensils, in particular to a wireless communication channel frequency hopping method and system of a range hood. BACKGROUND

[0002] The range hood of the kitchen currently adopts an external exhaust type of smoke exhaust, and this type of smoke exhaust has a great impact on the environment, so a central range hood is currently used to uniformly filter and stabilize the oil fume of the public flue before discharging, so that the main machine on the roof needs to be communicatively connected with the range hood or air valve of each floor to facilitate the suction and exhaust of the oil fume in the public flue of the entire floor, and the linkage during filtering.

[0003] Due to the influence of the public flue based on the product application scene, the current wireless communication mode is basically used, and each unit type has formed an independent wireless communication system, but cannot interfere with each other in the same frequency and near frequency.

[0004] Currently, whether an RF433 radio frequency module or a LORA module is used, due to the small number of open public wireless frequency bands, the number of channel frequency points that can be allocated to each unit type is small, for example, in a large residential area, the total number of unit types in each building is large, and the number of channel frequency points that can be allocated is small, so some or all frequency points may be repeatedly used within a small area, but in the actual situation, due to the close distance between each unit type or each building, the same frequency interference may occur, which affects the communication between the products of each independent unit type system and the timely linkage control between the products, causing the possibility that the main machine on the roof cannot be started in time or the main machine may be mistakenly started due to the linkage control of other unit types. The Lora module is Lora communication, which is a low-power long-range wireless communication technology, and has the characteristics of long distance, low power consumption, multiple nodes, low cost, and anti-interference, and at the same time, LoRa has a low speed and small data transmission; the RF433 radio frequency module is a 433MHz wireless transceiver module, which uses high-frequency radio frequency technology, so it is also called an RF433 radio frequency small module, and is commonly used for wireless short-range communication between household appliances and toy remote controllers.

[0005] If the actual estimation of the distance between each building unit type by human beings is relied on to allocate the frequency point reuse mode to reduce the interference of wireless same frequency signals, but the interference of wireless same frequency signals cannot be effectively avoided; or the same frequency signals cannot be effectively avoided by manually switching different frequency points multiple times. SUMMARY

[0006] Therefore, the purpose of the present application is to provide a wireless communication channel frequency hopping method and system of a range hood, which uses an automatic frequency hopping mode to process when wireless same frequency signal interference is identified, so as to ensure that the communication frequency points of the unit type are not interfered with, and to ensure the stable operation of the wireless communication system.

[0007] In a first aspect, the embodiments of the present application provide a wireless communication channel frequency hopping method of a range hood, which is applied to a wireless communication system of each unit type, and the wireless communication system comprises a host, a host LORA communication module, air valves of each floor, and LORA communication modules of the air valves of each floor; the method comprises:

[0008] When the host or the LORA communication modules of the air valves of each floor continuously receive wireless same-frequency signals of an external device for multiple times, the host determines that there is interference of the wireless same-frequency signals;

[0009] The host sends frequency point switching command information to the LORA communication modules of the air valves of each floor in a polling manner through the host LORA communication module;

[0010] The LORA communication modules of the air valves of each floor send the frequency point switching command information to the air valves of each floor;

[0011] The air valves of each floor automatically switch to adjusted wireless frequency points according to the frequency point switching command information, and send the adjusted states to the host in the polling manner through the LORA communication modules of the air valves of each floor;

[0012] When there is no interference of the wireless same-frequency signals, the host sends query instruction information to the LORA communication modules of the air valves of each floor in the polling manner through the host LORA communication module;

[0013] The LORA communication modules of the air valves of each floor send states of the air valves of each floor to the host in the polling manner according to the query instruction information.

[0014] Further, the air valves of each floor comprise a first-floor air valve, a second-floor air valve, and an Nth-floor air valve, and the LORA communication modules of the air valves of each floor comprise a first-floor air valve LORA communication module, a second-floor air valve LORA communication module, and an Nth-floor air valve LORA communication module.

[0015] Further, the host sends frequency point switching command information to the LORA communication modules of the air valves of each floor in a polling manner through the host LORA communication module, which comprises:

[0016] The host sends the frequency point switching command information to the Nth-floor air valve LORA communication module through the host LORA communication module;

[0017] The Nth-floor air valve LORA communication module sends the frequency point switching command information to the second-floor air valve LORA communication module;

[0018] The second floor air valve LORA communication module sends the frequency point switching command information to the first floor air valve LORA communication module.

[0019] Further, the air valve of each floor automatically switches to the adjusted wireless frequency point according to the frequency point switching command information, and sends the adjusted state to the host in the polling mode through the air valve LORA communication module of each floor, including:

[0020] The first floor air valve automatically switches to the adjusted wireless frequency point after analyzing the frequency point switching command information, and sends the adjusted first floor air valve state to the second floor air valve LORA communication module through the first floor air valve LORA communication module;

[0021] The second floor air valve automatically switches to the adjusted wireless frequency point after analyzing the frequency point switching command information, and sends the adjusted second floor air valve state and the first floor air valve state to the Nth floor air valve LORA communication module through the second floor air valve LORA communication module;

[0022] The Nth floor air valve automatically switches to the adjusted wireless frequency point after analyzing the frequency point switching command information, and sends the adjusted Nth floor air valve state, the adjusted second floor air valve state and the first floor air valve state to the host through the Nth floor air valve LORA communication module.

[0023] Further, the host sends a query instruction information to the air valve LORA communication module of each floor in the polling mode through the host LORA communication module, including:

[0024] The host sends the query instruction information to the Nth floor air valve LORA communication module through the host LORA communication module;

[0025] The Nth floor air valve LORA communication module sends the query instruction information to the second floor air valve LORA communication module;

[0026] The second floor air valve LORA communication module sends the query instruction information to the first floor air valve LORA communication module.

[0027] Further, the air valve LORA communication module of each floor sends the air valve state of each floor to the host in the polling mode according to the query instruction information, including:

[0028] The first floor air valve LORA communication module sends the state of the first floor air valve to the second floor air valve LORA communication module;

[0029] The second floor air valve LORA communication module sends the state of the second floor air valve and the state of the first floor air valve to the N floor air valve LORA communication module.

[0030] The N floor air valve LORA communication module sends the state of the N floor air valve, the state of the second floor air valve and the state of the first floor air valve to the host computer.

[0031] Further, the method further comprises:

[0032] When the host computer and the air valves of each floor are powered on, the air valve LORA communication module of each floor enters a network configuration state, so that the air valves of each floor are paired, coupled and bound with the host computer.

[0033] In a second aspect, the embodiments of the present application provide a wireless communication channel frequency hopping system of a range hood, which is applied to a wireless communication system of each unit type, and the wireless communication system comprises a host computer, a host computer LORA communication module, air valves of each floor and air valve LORA communication modules of each floor; the system comprises:

[0034] A determination module is configured to determine, when the host computer or the air valve LORA communication module of each floor continuously receives wireless same-frequency signals of an external device for multiple times, that there is interference of the wireless same-frequency signals;

[0035] A first sending module is configured to send frequency point switching command information to the air valve LORA communication module of each floor in a polling manner through the host computer LORA communication module;

[0036] A second sending module is configured to send the frequency point switching command information to the air valves of each floor by the air valve LORA communication module of each floor;

[0037] A switching module is configured to automatically switch the air valves of each floor to an adjusted wireless frequency point according to the frequency point switching command information, and send the adjusted state to the host computer in the polling manner through the air valve LORA communication module of each floor;

[0038] A query instruction information sending module is configured to send query instruction information to the air valve LORA communication module of each floor in the polling manner through the host computer LORA communication module when there is no interference of the wireless same-frequency signals;

[0039] An air valve state sending module is configured to send the state of the air valves of each floor to the host computer in the polling manner according to the query instruction information by the air valve LORA communication module of each floor.

[0040] In a third aspect, an electronic device is provided, comprising a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the computer program to implement the method described above.

[0041] In a fourth aspect, a computer readable medium having non-volatile program code executable by a processor is provided, wherein the program code causes the processor to execute the method described above.

[0042] The oil fume exhaust fan wireless communication channel frequency hopping method and system provided by the embodiment of the application is applied to a wireless communication system of each unit type, and the wireless communication system comprises a host, a host LORA communication module, air valves of each floor and air valve LORA communication modules of the floors.

[0043] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the present application. The objects and other advantages of the present 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.

[0044] So that the foregoing objectives, features and advantages of the present application can be more readily understood, a preferred embodiment will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings required to be used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0046] Figure 1 The wireless communication channel frequency hopping method flow chart of the range hood provided by the first embodiment of the present application;

[0047] Figure 2 The polling signal timing diagram of the host and the air valve of each floor provided by the first embodiment of the present application;

[0048] Figure 3 The wireless communication link diagram of the range hood provided by the first embodiment of the present application;

[0049] Figure 4 The wireless communication method flow chart of the range hood provided by the second embodiment of the present application;

[0050] Figure 5 The switching frequency point method flow chart of the range hood provided by the third embodiment of the present application;

[0051] Figure 6 The wireless communication channel frequency hopping application scenario diagram of the range hood provided by the fourth embodiment of the present application;

[0052] Figure 7 The wireless communication channel frequency hopping system diagram of the range hood provided by the fifth embodiment of the present application.

[0053] Icon:

[0054] 1-host; 2-host Internet of Things communication module; 3-host control system; 4-host LORA communication module; 5-air valve LORA communication module; 6-air valve of each floor; 7-nth floor terminal range hood; 8-second floor terminal range hood; 9-first floor terminal range hood; 10-wireless communication system built by No. 1 house type; 11-wireless communication system built by No. n house type; 21-determination module; 22-first sending module; 23-second sending module; 24-switching module; 25-query instruction information sending module; 26-air valve state sending module. DETAILED DESCRIPTION

[0055] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0056] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0057] Embodiment one:

[0058] Figure 1 The wireless communication channel frequency hopping method flowchart of the range hood provided for the first embodiment of the present application.

[0059] The wireless communication system applied to each single household type, the wireless communication system comprises a host, a host LORA communication module, a wind valve of each floor and a wind valve LORA communication module of each floor; the method comprises the following steps:

[0060] Step S101, when the host or the wind valve LORA communication module of each floor receives the wireless same frequency signal of the external device continuously for multiple times, the host determines that there is interference of the wireless same frequency signal;

[0061] Here, the host and the wind valve of each floor can monitor the wireless same frequency signal of the external device at any time. Here, because the host and the wind valve of each floor are both susceptible to interference and both have a monitoring mechanism, through efficient automatic identification and timely processing of the same frequency interference, the wireless communication is no longer in mutual interference for a long time, and the wireless communication system quickly recovers to normal communication work.

[0062] Step S102, the host sends a frequency point switching command information to the wind valve LORA communication module of each floor in a polling manner through the host LORA communication module;

[0063] Step S103, the wind valve LORA communication module of each floor sends the frequency point switching command information to the wind valve of each floor;

[0064] Step S104, the wind valve of each floor automatically switches to the adjusted wireless frequency point according to the frequency point switching command information, and sends the adjusted state to the host in a polling manner through the wind valve LORA communication module of each floor;

[0065] Specifically, when the host starts to initiate the frequency point switching command information, the next application frequency point bit is calculated in the frequency switching command frame in the frequency point switching command information, and the next frequency point number is sent; the next frequency point number is a random number in the range of all available frequency point numbers, and cannot generate an already applied frequency point number, so that when the two systems simultaneously identify the same frequency interference of the other party, the same method may exist, and the frequency point number is simultaneously increased or decreased, or synchronized to the same frequency point, thereby avoiding the possibility of the two systems constantly adjusting the frequency point. The random number generation algorithm includes multiple ways.

[0066] The air valve of each floor automatically switches to the adjusted wireless frequency point according to the frequency point switching command information, which can reduce the influence of radio frequency same frequency interference, improve the product communication success rate, make the wireless communication linkage between the host and the air valve of each floor more stable, and reduce the loss of communication data instructions by switching the frequency point in time.

[0067] Step S105, when there is no wireless same frequency signal interference, the host sends query instruction information to the air valve LORA communication module of each floor through the host LORA communication module in a polling manner;

[0068] Step S106, the air valve LORA communication module of each floor sends the air valve state of each floor to the host according to the query instruction information in a polling manner.

[0069] Specifically, when there is no wireless same frequency signal interference, the wireless communication system works normally, and the host sends query instruction information to the air valve of each floor through the polling manner; the air valve of each floor also reports the real-time state of each air valve to the host through the polling manner. The polling manner used in the present application can also be implemented by other radio frequency communication modes, and is not limited to the LORA communication mode. Figure 2 Figure 3 The polling manner used in the present application can also be implemented by other radio frequency communication modes, and is not limited to the LORA communication mode.

[0070] Further, the air valve of each floor includes a first floor air valve, a second floor air valve, and an Nth floor air valve, and the air valve LORA communication module of each floor includes a first floor air valve LORA communication module, a second floor air valve LORA communication module, and an Nth floor air valve LORA communication module.

[0071] Further, step S102 includes the following steps:

[0072] Step S201, the host sends frequency point switching command information to the Nth floor air valve LORA communication module through the host LORA communication module;

[0073] Step S202, the Nth floor air valve LORA communication module sends the frequency point switching command information to the second floor air valve LORA communication module;

[0074] ​Step S203, the two floor air valve LORA communication module sends the frequency point changing command information to the first floor air valve LORA communication module.

[0075] Further, step S104 comprises the following steps:

[0076] Step S301, after the first floor air valve parses the frequency point changing command information, it automatically switches to the adjusted wireless frequency point, and sends the adjusted first floor air valve state to the second floor air valve LORA communication module through the first floor air valve LORA communication module;

[0077] Step S302, after the second floor air valve parses the frequency point changing command information, it automatically switches to the adjusted wireless frequency point, and sends the adjusted second floor air valve state and the first floor air valve state to the N floor air valve LORA communication module through the second floor air valve LORA communication module;

[0078] Step S303, after the N floor air valve parses the frequency point changing command information, it automatically switches to the adjusted wireless frequency point, and sends the adjusted N floor air valve state, the adjusted second floor air valve state and the first floor air valve state to the host through the N floor air valve LORA communication module.

[0079] Further, step S105 comprises the following steps:

[0080] Step S401, the host sends the query instruction information to the N floor air valve LORA communication module through the host LORA communication module;

[0081] Step S402, the N floor air valve LORA communication module sends the query instruction information to the second floor air valve LORA communication module;

[0082] Step S403, the second floor air valve LORA communication module sends the query instruction information to the first floor air valve LORA communication module.

[0083] Further, step S106 comprises the following steps:

[0084] Step S501, the first floor air valve LORA communication module sends the state of the first floor air valve to the second floor air valve LORA communication module;

[0085] Step S502, the second floor air valve LORA communication module sends the state of the second floor air valve and the state of the first floor air valve to the N floor air valve LORA communication module;

[0086] Step S503, the N floor air valve LORA communication module sends the state of the N floor air valve, the state of the second floor air valve and the state of the first floor air valve to the host.

[0087] Further, the method further comprises the following steps:

[0088] Step S601, when the host and the air valve of each floor are powered on, the air valve LORA communication module of each floor enters the network configuration state, so that the air valve of each floor is paired, connected and bound with the host.

[0089] Specifically, when the host and the air valve of each floor are powered on, the air valve LORA communication module of each floor enters the network configuration state, so that the air valve of each floor is paired, connected and bound with the host through the wireless remote controller of the peripheral device; the floor number of each floor is set one by one in the respective air valve, and the host of the first unit is paired as 001000, the air valve of the first floor is paired as 001001; the air valve of the second floor of the first unit is paired as 001002, and a total of six digits are set, the first three digits from the left represent the number setting position of each unit, and the last three digits represent the number setting position of each floor; in this way, the numbers of the air valves of each floor of each unit are configured, and a product wireless local area network communication control system between each floor of the unit is formed. Each configuration valve exits the network configuration binding state and enters the normal working state after 20s of no remote controller operation.

[0090] Meanwhile, the host of the second unit is paired as 002000, the air valve of the first floor is paired as 002001, and the air valve of the second floor of the second unit is paired as 002002, and a total of six digits are set, so as to form a product local area network between each floor of the second unit, or a system of multiple unit systems. The above configuration method completes the connection, networking and binding configuration of each wireless communication network system of each unit.

[0091] Embodiment two

[0092] Figure 4 The wireless communication method flow chart of the range hood provided for the embodiment two of the application.

[0093] Referring to Figure 4 The method comprises the following steps:

[0094] Step S701, when the host and the air valve of each floor are powered on, the air valve LORA communication module of each floor enters the network configuration state;

[0095] Step S702, the host sends a query instruction information to the Nth floor air valve LORA communication module through the host LORA communication module;

[0096] Step S703, the Nth floor air valve LORA communication module sends the query instruction information to the second floor air valve LORA communication module;

[0097] Step S704, the second floor air valve LORA communication module sends the query instruction information to the first floor air valve LORA communication module;

[0098] Step S705, the first floor air valve LORA communication module sends the state of the first floor air valve to the second floor air valve LORA communication module;

[0099] Step S706, the second floor air valve LORA communication module sends the state of the second floor air valve and the state of the first floor air valve to the N floor air valve LORA communication module;

[0100] Step S707, the N floor air valve LORA communication module sends the state of the N floor air valve, the state of the second floor air valve and the state of the first floor air valve to the host computer.

[0101] Here, the wireless network application mode of each floor air valve and the host computer, the air valve can also be installed in various application building ventilation systems, not limited to the application in the kitchen fume exhaust system; the main purpose is to effectively link with the host computer when the operation of each floor range hood (or exhaust fan) runs.

[0102] Example three:

[0103] Figure 5 The switching frequency point method flow chart of the range hood provided for example three of the application.

[0104] Referring to Figure 5 , the method comprises the following steps:

[0105] Step S801, when the host computer and the air valve of each floor are powered on, the air valve LORA communication module of each floor enters the network distribution state;

[0106] Step S802, the host computer sends the frequency point switching command information to the N floor air valve LORA communication module through the host computer LORA communication module;

[0107] Here, the frequency point switching command information includes the next frequency hopping point set, by finding different frequency hopping points, when each floor air valve switches frequency, it is not easy to simultaneously generate to the same frequency point, thereby improving the timeliness of the frequency point switching; when two systems are adjusted again, they will not be adjusted to the same frequency point.

[0108] Step S803, the N floor air valve LORA communication module sends the frequency point switching command information to the second floor air valve LORA communication module;

[0109] Step S804, the second floor air valve LORA communication module sends the frequency point switching command information to the first floor air valve LORA communication module;

[0110] Step S805, after the first floor air valve analyzes the frequency point switching command information, it automatically switches to the adjusted wireless frequency point, and sends the adjusted first floor air valve state to the second floor air valve LORA communication module through the first floor air valve LORA communication module;

[0111] Step S806, the second floor damper parses the frequency point switching command information, automatically switches to the adjusted wireless frequency point, and sends the adjusted second floor damper state and the first floor damper state to the Nth floor damper LORA communication module through the second floor damper LORA communication module;

[0112] Step S807, the Nth floor damper parses the frequency point switching command information, automatically switches to the adjusted wireless frequency point, and sends the adjusted Nth floor damper state, the adjusted second floor damper state and the first floor damper state to the host computer through the Nth floor damper LORA communication module.

[0113] Specifically, the coding bits of each unit type are designed in the communication data frame, and each unit type is numbered to distinguish the signals of different unit types. The main purpose is to identify that if there are other unit types around using the same frequency point for wireless communication, there may be the possibility of same frequency interference. The design of the coding bits of each unit type can effectively avoid the start-up and shutdown signals sent by other systems from causing the host computer to start incorrectly, or causing the host computer to start, speed up or shut down incorrectly due to interference. In addition, it saves the host computer from wasting power and reduces noise. The coding bits include various ways, not limited to the number of coding bits, the order and the coding method.

[0114] Then, through the coding bits of each unit type, both the host computer and the damper on each floor can identify the captured wireless signal. When it is identified that other unit types are also using the same frequency point, multiple confirmations are needed to determine whether the signals with the same frequency point of the unit type around are being used regularly. If the same frequency point is continuously confirmed for a long time, it means that other unit types (external devices) outside the unit type are also using the same frequency point. If the damper identifies that there is wireless same frequency signal interference, it needs to report to the host computer that there is same frequency interference. When same frequency interference is found, whether the damper or the host computer identifies it, the host computer needs to initiate the frequency point switching command information.

[0115] When the host computer and the damper on each floor are working normally, the host computer and the damper on each floor listen to the wireless signal at all times. When the host computer and the damper on each floor automatically listen to and identify the wireless signal, it means that this wireless signal is the same frequency signal of the system, which can be normally received. Whether it is the numbered product of the system or not can be identified through the coding bits of the unit type. If it is the wireless signal sent by the numbered product of the system, the processing method is as follows:

[0116] 1) The information and command of this wireless signal cannot be executed. If the host computer executes it, it will cause the host computer to start incorrectly and speed up incorrectly, or shut down the host computer incorrectly;

[0117] 2) When the non-unit wireless same frequency signal is identified continuously for multiple times, it can be determined that the same frequency interference is received, because the same frequency signal is constantly received, when the system has a product to initiate the wireless signal of the same frequency at the same time, the same frequency signal of the external device will interfere with each other, so that the system product cannot normally receive information or command, and the host computer cannot start in time, speed adjustment is disordered, and shutdown phenomenon occurs;

[0118] 3) The host computer reports the same frequency interference signal of the wind valve on each floor;

[0119] 4) When the host computer itself identifies or receives the same frequency interference signal reported by the wind valve on each floor, the host computer LORA communication module initiates the frequency point switching command information; when the wind valve on each floor receives the frequency point switching command information in a polling manner, the wind valve on each floor will automatically switch to the newly adjusted wireless frequency point to work, so as to receive and transmit new wireless control signals. Such frequency hopping control method can automatically and effectively jump the existing same frequency point interference.

[0120] After the same frequency interference is confirmed for multiple times, the host computer can report the information to the cloud through the host computer Internet of Things communication module 2. For the same frequency interference fault, the technical personnel can remotely or on-site analyze and solve the problem.

[0121] Example four

[0122] Figure 6 The wireless communication channel frequency hopping application scene schematic diagram of the range hood is provided for the fourth embodiment of the application.

[0123] Referring to Figure 6 , including a host computer 1 (central range hood host computer), a host computer Internet of Things communication module 2 with an antenna, a host computer control system 3 (host computer control system mainboard), a host computer LORA communication module 4 (radio frequency communication module + antenna), a wind valve LORA communication module 5 (radio frequency communication module + antenna), wind valves 6 on each floor (wind valve main body, referred to as main wind valve, provided with a wind valve controller), an n-floor terminal range hood 7, a second-floor terminal range hood 8, a first-floor terminal range hood 9, a wireless communication system 10 built in a No. 1 house type, and a wireless communication system 11 built in a No. n house type. Among them, the n-floor terminal range hood 7, the second-floor terminal range hood 8, and the first-floor terminal range hood 9 represent terminal range hoods or exhaust fans on each floor; the wireless communication system 10 built in the No. 1 house type and the wireless communication system 11 built in the No. n house type represent that n house types of wireless communication systems are built and operated at the same time in the same residential area.

[0124] Host Internet of Things communication module 2, host control system 3 (host control system mainboard), host LORA communication module 4 (radio frequency communication module + antenna), the antenna is led out into the flue and sealed, and is installed into the host 1, and is mainly used for controlling the host, and wireless communication is carried out with each floor air valve to form a set of wireless communication control system (independent local area network) of the unit type.

[0125] The air valve LORA communication module 5 (radio frequency communication module + antenna) is installed in the air valve 6 of each floor, the antenna is led out into the flue and sealed, and is mainly used for the air valve to access the wireless communication control system of the unit.

[0126] The host Internet of Things communication module 2 is mainly used for communication through a cellular network, and the information of the host of the unit type and the valve end of each floor is reported to the cloud, or the instructions are transmitted to the host through the cloud, that is, the function of bidirectional communication between the host and the cloud is realized. Among them, the cellular network is the commonly used mobile wireless communication network (such as 2G, 3G, 4G and 5G network), and the wireless Internet of Things also uses the cellular network to transmit information data. Wireless communication can be simply referred to as wireless radio frequency communication module or radio frequency communication module. The wireless communication control module is a kind of communication controller made by transmitting information through wireless radio frequency signals.

[0127] The host control system 3 is mainly used for controlling the operation of the host, and the host Internet of Things communication module 2 and the host LORA communication module 4 are used to establish linkage control with the external cloud and the air valve of each floor.

[0128] The host LORA communication module 4 is mainly used for the host to connect the air valve information communication of each floor of the building unit type through the LORA communication mode, so that the local area network is formed between the products in the whole unit type, and the linkage control function between the products according to the current working condition is realized.

[0129] The air valve LORA communication module 5 is mainly used for the air valve to connect the communication between the host and the air valve of each floor of the building unit type through the LORA communication mode, so that the local area network is formed between the products in the whole unit type, and the linkage control function between the products according to the current working condition is realized.

[0130] The air valve 6 of each floor is used to identify the power size of the range hood by providing power supply with the range hood, so as to effectively identify the condition of the range hood gear switch; the power matching of the air outlet air volume of each floor of the unit type is adjusted, so that the air volume of each floor of the building unit type is more evenly distributed.

[0131] The n-floor terminal range hood 7, the second-floor terminal range hood 8 and the first-floor terminal range hood 9 are used to absorb kitchen fume and peculiar smell, and achieve the purpose of smoke exhaust or ventilation through the air valve.

[0132] The wireless communication system 10 of the first house type and the wireless communication system 11 of the n-th house type represent that n house types are built in the same residential area and are simultaneously in operation. Most of them are set to work at different frequency points, or several groups of house types are set to work at the same frequency point. Whether the number of house types in different areas exceeds the total number of frequency points that can be used is used to evaluate the reuse of frequency points.

[0133] Embodiment five

[0134] Figure 7 The wireless communication channel frequency hopping system schematic diagram of the range hood of the range hood of the embodiment five of the application.

[0135] Referring to Figure 7 The wireless communication system applied to each unit house type includes a host, a host LORA communication module, a wind valve of each floor, and a wind valve LORA communication module of each floor. The system includes:

[0136] The determination module 21 is configured to determine that the host exists wireless same frequency signal interference when the host or the wind valve LORA communication module of each floor receives the wireless same frequency signal of the external device for multiple times in succession.

[0137] The first sending module 22 is configured to send the frequency point changing command information to the wind valve LORA communication module of each floor in a polling manner through the host LORA communication module of the host.

[0138] The second sending module 23 is configured to send the frequency point changing command information to the wind valve of each floor by the wind valve LORA communication module of each floor.

[0139] The switching module 24 is configured to automatically switch to the adjusted wireless frequency point according to the frequency point changing command information by the wind valve of each floor, and send the adjusted state to the host in a polling manner through the wind valve LORA communication module of each floor.

[0140] The query instruction information sending module 25 is configured to send the query instruction information to the wind valve LORA communication module of each floor in a polling manner through the host LORA communication module of the host when there is no wireless same frequency signal interference.

[0141] The wind valve state sending module 26 is configured to send the state of the wind valve of each floor to the host in a polling manner according to the query instruction information by the wind valve LORA communication module of each floor.

[0142] The application provides a wireless communication channel frequency hopping method and system of an extractor, which is applied to a wireless communication system of each unit type, and the wireless communication system comprises a host, a host LORA communication module, air valves of each floor and air valve LORA communication modules of the floors.

[0143] The application also provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the wireless communication channel frequency hopping method of the extractor of the extractor provided in the above embodiment when executing the computer program.

[0144] The application also provides a computer readable medium with non-volatile program codes executable by a processor, and the computer readable medium stores a computer program, and the computer program executes the steps of the wireless communication channel frequency hopping method of the extractor of the extractor provided in the above embodiment when executed by the processor.

[0145] The computer program product provided in the 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 embodiment, and specific implementation can be referred to the method embodiment, and will not be repeated here.

[0146] 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 embodiment, and will not be repeated here.

[0147] 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 intervening medium, can be internal communication of 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.

[0148] 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 this understanding, the technical solutions of the present application or the part of 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 various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and various program code storage media.

[0149] 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, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0150] 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 frequency hopping method for wireless communication channels in a range hood, characterized in that, A wireless communication system applied to various apartment unit types, the wireless communication system including a host, a host LORA communication module, air valves on each floor, and LORA communication modules for the air valves on each floor; the method includes: When the host or the LORA communication module of the air valve on each floor receives wireless co-frequency signals from external devices multiple times in a row, the host determines that there is interference from the wireless co-frequency signals. The host sends frequency switching command information to the air valve LORA communication modules of each floor in a polling manner through the host LORA communication module; The LORA communication module of each floor's air valve sends the frequency switching command information to the air valve of each floor; The air valves on each floor automatically switch to the adjusted wireless frequency according to the frequency switching command information, and send the adjusted status to the host through the air valve LORA communication module on each floor in the polling manner. When there is no interference from the wireless co-frequency signal, the host sends query command information to the air valve LORA communication modules of each floor in a polling manner through the host LORA communication module. The LORA communication module of each floor's air valve sends the status of each floor's air valve to the host in a polling manner according to the query command information.

2. The frequency hopping method for the wireless communication channel of a range hood according to claim 1, characterized in that, The air valves on each floor include the air valves on the first floor, the air valves on the second floor, and the air valves on the Nth floor. The LORA communication modules for the air valves on each floor include the LORA communication modules for the air valves on the first floor, the air valves on the second floor, and the air valves on the Nth floor.

3. The frequency hopping method for the wireless communication channel of a range hood according to claim 2, characterized in that, The host computer sends frequency switching command information to the LORA communication modules of the air valves on each floor in a polling manner through the host LORA communication module, including: The host sends the frequency switching command information to the N-floor air valve LORA communication module through the host LORA communication module; The N-floor air valve LORA communication module sends the frequency switching command information to the second-floor air valve LORA communication module. The second-floor air valve LORA communication module sends the frequency switching command information to the first-floor air valve LORA communication module.

4. The frequency hopping method for the wireless communication channel of a range hood according to claim 3, characterized in that, The air valves on each floor automatically switch to the adjusted wireless frequency according to the frequency switching command information, and send the adjusted status to the host through the air valve LORA communication module on each floor in a polling manner, including: After parsing the frequency switching command information, the first-floor air valve automatically switches to the adjusted wireless frequency and sends the adjusted status of the first-floor air valve to the second-floor air valve LORA communication module through the first-floor air valve LORA communication module. After parsing the frequency switching command information, the second-floor air valve automatically switches to the adjusted wireless frequency and sends the adjusted second-floor air valve status and the first-floor air valve status to the N-floor air valve LORA communication module through the second-floor air valve LORA communication module. After parsing the frequency switching command information, the N-floor air valve automatically switches to the adjusted wireless frequency and sends the adjusted N-floor air valve status, the adjusted second-floor air valve status, and the first-floor air valve status to the host through the N-floor air valve LORA communication module.

5. The frequency hopping method for the wireless communication channel of a range hood according to claim 2, characterized in that, The host computer sends query command information to the air valve LORA communication modules of each floor in a polling manner through the host LORA communication module, including: The host sends the query command information to the N-floor air valve LORA communication module through the host LORA communication module. The N-floor air valve LORA communication module sends the query command information to the second-floor air valve LORA communication module. The second-floor air valve LORA communication module sends the query command information to the first-floor air valve LORA communication module.

6. The frequency hopping method for the wireless communication channel of a range hood according to claim 5, characterized in that, The LORA communication modules of the air valves on each floor send the status of the air valves on each floor to the host in a polling manner according to the query command information, including: The first-floor air valve LORA communication module sends the status of the first-floor air valve to the second-floor air valve LORA communication module. The second-floor air valve LORA communication module sends the status of the second-floor air valve and the status of the first-floor air valve to the N-floor air valve LORA communication module. The LOA communication module of the N-floor air valve sends the status of the N-floor air valve, the status of the second-floor air valve, and the status of the first-floor air valve to the host.

7. The frequency hopping method for the wireless communication channel of a range hood according to claim 1, characterized in that, The method further includes: When the host and the air valves on each floor are powered on, the LORA communication module of the air valves on each floor enters the network distribution state, so that the air valves on each floor are paired and connected with the host.

8. A frequency hopping system for a wireless communication channel of a range hood, characterized in that, A wireless communication system applied to various apartment unit types, the wireless communication system including a host, a host LORA communication module, air valves on each floor, and LORA communication modules for the air valves on each floor; the system includes: The determination module is used to determine that when the host or the air valve LORA communication module of each floor receives wireless co-frequency signals from an external device multiple times in a row, the host determines that there is interference from the wireless co-frequency signals. The first sending module is used by the host to send frequency switching command information to the air valve LORA communication modules of each floor in a polling manner through the host LORA communication module; The second sending module is used for the LORA communication module of the air valves on each floor to send the frequency switching command information to the air valves on each floor; The switching module is used to automatically switch the air valves on each floor to the adjusted wireless frequency point according to the frequency switching command information, and send the adjusted status to the host through the air valve LORA communication module on each floor in the polling manner. The query instruction information sending module is used to send query instruction information to the air valve LORA communication modules of each floor in a polling manner when there is no interference from the wireless co-frequency signal. The air valve status sending module is used by the air valve LORA communication module of each floor to send the air valve status of each floor to the host in a polling manner according to the query instruction information.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor executes the computer program, it implements the method described in any one of claims 1 to 7.

10. A computer-readable medium having processor-executable non-volatile program code, characterized in that, The program code causes the processor to execute the method according to any one of claims 1 to 7.

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