Kitchen wireless linkage system and control method

Abstract

The present invention relates to F24F7 / 06, and in particular to a kitchen wireless linkage system and control method. The system comprises a fume exhaust device and a linkage device, wherein the linkage device comprises a main controller, a zone controller, and a unit controller. The kitchen wireless linkage system and control method provided by the present invention have the advantages of fast communication speed, high data stability, strong anti-interference ability, stable operation, etc., and can exhaust air according to the exhaust requirements of the kitchen at any time, effectively achieving the effect of energy saving.

Description

Technical Field

[0001] The present invention relates to F24F7 / 06, and in particular to a kitchen wireless linkage system and a control method. Background Art

[0002] With the development of society, the catering industry has become an important part of commercial complexes and hotels. However, due to the large number of kitchen equipment in commercial complexes and hotels, it is impossible to effectively control them. At the same time, compared with other commercial formats, catering has more and more complex mechanical and electrical requirements. The electricity load and air-conditioning load are both very large, resulting in high energy consumption, which not only seriously affects economic benefits, but also causes environmental pollution.

[0003] Patent CN201510530865.3 provides an energy-saving control system and energy-saving control method for a gas stove and a range hood linkage. The controlled gas stove power module is triggered to start working by an ignition switch to realize the start and stop energy-saving control of the electronic module on the gas stove. At the same time, the gas stove controller is also electrically connected to a thermocouple flame detection module and a first wireless communication module to realize the energy-saving linkage control of the gas stove and the range hood.

[0004] Patent CN201310727281.6 provides a commercial kitchen centralized monitoring system and method. Through the centralized controller of the commercial kitchen, the supervision center can grasp the operating conditions of various terminal equipment in the kitchen and the working environment of the entire kitchen in real time to achieve comprehensive control of the working environment of the commercial kitchen and terminal equipment analysis.

[0005] However, in actual use, fume exhaust equipment is one of the most important parts affecting energy consumption in the catering industry, but there is little research on this in the existing technology. Summary of the invention

[0006] In order to solve the above technical problems, the first aspect of the present invention provides a kitchen wireless linkage system, including a fume exhaust device and a linkage device, wherein the linkage device includes a main controller, a zone controller, and a unit controller.

[0007] The main controller is used for data collection, algorithm calculation, touch screen interaction, file system, USB data import, inverter, meter data communication, dry contact output and input, etc.

[0008] Preferably, the main controller includes a multi-channel data acquisition module, an algorithm module, a touch screen interaction module, a storage module, a data transmission module, a communication module, and an IO port control module.

[0009] The multi-channel data acquisition module can simultaneously collect multiple signals such as the temperature of the stove, the temperature and humidity of the kitchen, the opening of the air volume valve, etc. through sensors, and can be expanded to access other peripherals to build comprehensive kitchen data and store it in the storage module. The algorithm module processes the kitchen data at all times, compares the sensor of a single cooking point with the environmental sensor, and obtains the real-time efficiency of the kitchen. According to the temperature, humidity and exhaust volume of the kitchen, the fresh air supply is intelligently allocated at all times to reduce the power consumption to the lowest energy output, so that the kitchen can always optimize the exhaust effect according to demand, and finally realize a truly intelligent energy-saving solution.

[0010] Preferably, the data collected by the multi-channel data acquisition module includes temperature data of the stove head, temperature data of the kitchen, humidity data, opening data of the air volume valve, current data of the range fumes exhaust device, key data of the range fumes exhaust device and other data.

[0011] The algorithm module is used to build a complete and huge data model for analysis and calculation of the multi-channel data acquisition module, the data inside the storage module, etc., and treat each device and each area separately. The exhaust volume of a single device and the air volume changes in the working state can be set according to the user's needs and usage habits, so that the exhaust volume of each device can achieve the best user experience.

[0012] Preferably, the algorithm module includes an over-air volume module, a optimization module, a synchronization module, a wind pressure module, a stability module, a deep learning module, a virtual simulation module, a multi-fan linkage control module, and an automatic learning module.

[0013] The super air volume module is used to calculate the exhaust volume of each main and secondary duct, and set the maximum limit of the exhaust volume to avoid the impact of the enhanced air volume on the life of the air duct. At the same time, if the equipment is not fully used, the system will give priority to enhancing the equipment in use, and adjust the air volume of the unused equipment to the equipment in use to enhance the user experience.

[0014] The optimization module can automatically calculate the number of fresh air fans to be turned on and then adjust the fan power according to the preferred order based on the changes in kitchen temperature, humidity and exhaust volume. This ensures that the most important part of the kitchen gets fresh air first.

[0015] The synchronization module can calculate the negative pressure value of the kitchen through the fresh air coefficient, ensuring that the kitchen is always in a negative pressure state, so that the fresh air supply in the kitchen is in a balanced state.

[0016] The wind pressure module calculates the static wind pressure, dynamic wind pressure and performs curve operation on the wind pressure, and adjusts the wind pressure curve compensation according to the air volume measurement of each HZ frequency conversion, ensuring that each adjustment of 1HZ will be able to fully meet the user's proper air volume experience in terms of efficiency. At the same time, it can also judge whether the fan is used normally based on the changes in the collected current change value.

[0017] The stability module can amplify the calculation corresponding to the kitchen sensor to the maximum when the kitchen sensor fails, so that the user experience is not affected, ensuring that even if all kitchen sensors are damaged, it will not affect the normal exhaust use of the kitchen.

[0018] The deep learning module can automatically adjust the algorithm parameters according to user habits. In particular, the exhaust volume can be adjusted according to the temperature value and temperature difference value of each kitchen sensor stored in the data storage module in an emergency state. When the temperature value and temperature difference value reach the emergency standard next time, the emergency enhancement state is automatically entered to enhance the required air volume value.

[0019] The virtual simulation algorithm module simulates that the air volume of an air volume valve can be divided into multiple cooking devices respectively, and calculates the distribution of cooking points between two air volume valves, so that the air volume valve can execute the opening angle according to actual needs.

[0020] The multi-fan linkage control module can calculate the dynamic change efficiency of the fan and accurately control the number of fans and frequency conversion efficiency, which meets the distinction between functionality and usage time in the standard design, and merges several kitchens into a multi-fan parallel system, improves the level of intelligent control, and reduces the area of ​​the fume exhaust shaft. The fume exhaust equipment can turn on the number of fans and the frequency conversion frequency according to actual needs. When the air volume is reduced and the wind speed is reduced, the wind resistance will be reduced, and the efficiency of the fan will be improved due to the reduction of resistance, further improving the energy saving level and enhancing the user experience.

[0021] The automatic learning module can analyze the data in the data storage module, automatically slightly increase the air volume for cooking equipment with high usage rate, and slightly reduce the air volume for cooking equipment with low usage rate, thereby saving energy consumption.

[0022] The touch screen interaction module is used to realize information interaction between people and the main control machine, enhance the communication between people and machines to make it more natural and smooth, and enable people to use the system very conveniently.

[0023] The storage module is used to store various data information, provide data support to the algorithm module, and prevent information loss.

[0024] The data transmission module includes control transmission, isochronous transmission, interrupt transmission and data block transmission, which is used to expand access to other peripherals to transmit data of all working equipment in the kitchen to the data acquisition module, in order to provide more comprehensive data support for the algorithm module, and then provide maintenance plans for various equipment to help users use them better.

[0025] Preferably, the communication module includes a frequency converter communication module and an electric meter communication module.

[0026] The inverter communication module can convert the industrial frequency power supply into AC power supply of various frequencies, so that the main controller in the kitchen wireless linkage system can complete the control of the main circuit and the zone controller, making the data voltage more stable during the transmission process and preventing problems such as crosstalk between signals.

[0027] The electric meter communication module can perform effective signal transmission at long distances and under conditions of high electronic noise, realize wireless communication transparent transmission, and transmit the electric meter data collected by the unit controller to the multi-channel data acquisition module through wireless transmission.

[0028] The IO port control module can provide power distribution and data connection requirements for various sensors, actuators and other devices in the smoke exhaust equipment, and is used for IO input and output control, mechanical buttons of the smoke exhaust equipment, and identification of sensor trigger switches to achieve control of the dry contacts of the smoke exhaust equipment.

[0029] The regional controller processes the relevant data information of a certain area. By setting up a regional controller in each dispersed area and then transmitting the signal to the main controller, the kitchen wireless linkage system is more stable, and together with the multi-fan linkage control module, it can simultaneously manage multiple kitchens, which is especially suitable for kitchens in commercial complexes and hotels.

[0030] Preferably, the zone controller includes a 485 interface module and a wireless interface module.

[0031] The 485 interface module is mainly used for interaction between main controllers, and adopts a master-slave structure to enable the main controller to control multiple regional controllers, so that the regional controllers cannot communicate with each other, speed up the data exchange between the main controller and the regional controllers, and enhance the stability of communication.

[0032] Preferably, the number of the regional controllers is greater than 1, and the frequency bands of the regional controllers are different. The different frequency bands of each region ensure that there is no interference between regions, greatly improving the communication speed and data stability.

[0033] The wireless interface module is mainly used for communication interaction with the unit controller. The baud rate transmitted by the wireless interface module is relatively flexible, and can effectively realize effective data transmission and control of different fume exhaust devices containing unit control.

[0034] Preferably, the power supply voltage of the regional controller is 24 V. The regional controller simplifies the migration path of the electrical architecture, achieves higher economic benefits at a lower cost, and achieves cost savings and lightweight.

[0035] Preferably, the wiring of the zone controller requires two power lines and two communication lines.

[0036] The unit controller is mainly used for the control and feedback detection of the air volume valve, current collection and key input collection. The unit controller can be divided into several units according to the function and number of each exhaust device.

[0037] Preferably, the unit controller includes an air volume valve module, a power monitoring module, and an IO acquisition module.

[0038] The air volume valve module is used to accurately control the opening of the valve and feedback the opening signal of the valve. When the zone controller transmits the air volume valve opening signal to the air volume valve module, the air volume valve module converts the air volume valve opening signal and opens the valve to a certain angle. At the same time, the air volume valve module can also feedback the state of the valve to the zone controller, convert the state of the valve into a certain air volume valve opening signal and transmit it to the zone controller wirelessly, and then transmit it to the main controller, effectively realizing the kitchen wireless linkage system to control the kitchen exhaust volume.

[0039] The power monitoring module can effectively monitor the current of the exhaust equipment by transmitting the change of the exhaust equipment current to the meter communication module through the regional controller and then uploading it to the data storage module. The algorithm module compares the corresponding current change with the original value and judges whether the fan is in normal use according to the size of the change.

[0040] The IO acquisition module can collect dry contact signals, perform relevant processing on the collected sensor signals, convert them into corresponding values, and transmit them remotely through the regional controller.

[0041] Preferably, the number of the unit controllers is >1.

[0042] The second aspect of the present invention provides a control method for a kitchen wireless linkage system, comprising the following steps: a main controller can exchange data with multiple zone controllers through a 485 bus, and communicate signals with multiple unit controllers in a wireless manner through the zone controllers, so that the fume exhaust equipment can work normally; the unit controller can also send the collected information data to the main controller through the zone controller, and the main controller processes the information data, thereby forming a complete kitchen wireless linkage system.

[0043] The power monitoring module monitors the current in the exhaust equipment and collects the current data information. The IO acquisition module collects the key information of the exhaust equipment and transmits the collected current data information and the key information of the exhaust equipment to the wireless interface module of the regional controller through wireless, and then transmits the data information to the main controller through the 485 module, and converts the information to the multi-channel data acquisition module through the meter communication module. At the same time, the multi-channel data acquisition module collects information data such as the temperature of the stove, the temperature of the kitchen, the humidity, the opening of the air volume valve, and uploads the data information of all kitchen equipment through the USB device through the data transmission module. The multi-channel data acquisition module stores the collected information in the storage module for storage. The algorithm module calculates and analyzes the data information stored in the data storage module through the super air volume module, the priority module, the synchronization module, the air pressure module and other modules, and the exhaust volume of each pipeline, the air volume of the air conditioning fan equipment, and other data information, especially the virtual module distributes and calculates the cooking points between the two air volume valves. According to the changes in the kitchen temperature, humidity and exhaust volume, the number of new fans to be opened is calculated according to the preferred order and then the power of the fan is adjusted. Keep the fresh air supply in the kitchen in a balanced state.

[0044] At the same time, the staff issues instructions through the touch screen, converts the issued instruction signals through the touch screen interaction module, and then sends the signals to the zone controller through the inverter communication module. The zone controller receives the signals through the 485 interface module, and then sends the signals to the unit control module through the wireless interface module. The air volume valve module receives the signal and opens the air volume valve in the smoke exhaust equipment to a certain degree. The fume exhaust equipment extracts and purifies the fumes in the kitchen.

[0045] Beneficial effects:

[0046] At present, there are few studies on the linkage system of kitchen exhaust equipment. At the same time, due to the business requirements of commercial complexes, hotels and social catering, multiple kitchens are often required to be linked. The general system often cannot meet the requirements due to the large interference between data, but it is easy to cause operational confusion; on the other hand, due to the limitations of commercial complexes, hotels and social catering, the exhaust volume varies greatly with various factors such as temperature, humidity, and the switch of stoves. The algorithm in the traditional system is relatively simple and cannot effectively exhaust according to the actual exhaust volume, which cannot meet the requirements of energy saving and environmental protection.

[0047] The present invention can exchange data with multiple regional controllers through the 485 bus through the main controller. At the same time, the regional controller communicates with multiple unit controllers in a wireless manner, and the data frequency bands of each regional controller are inconsistent, which can avoid wireless data interference between regions and ensure data communication stability. It effectively realizes the mutual communication between the main controller, regional controller, unit controller, and fume exhaust equipment, has the advantages of fast communication speed, high data stability, strong anti-interference ability, stable operation, etc., and is also conducive to installation.

[0048] At the same time, the present invention forms a complete database information base through multi-channel data acquisition modules and through expansion access to other peripherals, realizes cloud information sharing and provides powerful data support for the algorithm module. Through analysis and calculation between different algorithm modules, exhaust is carried out according to the exhaust needs of the kitchen at all times, effectively achieving the effect of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 - Schematic diagram of kitchen wireless linkage system process;

[0050] Figure 2 -Schematic diagram of the kitchen wireless linkage system structure. DETAILED DESCRIPTION

[0051] A kitchen wireless linkage system, such as Figure 2 As shown, it includes oil fume exhaust equipment and linkage equipment, wherein the linkage equipment includes a main controller, a zone controller, and a unit controller.

[0052] The main controller is used for data collection, algorithm calculation, touch screen interaction, file system, USB data import, inverter, meter data communication, dry contact output and input, etc.

[0053] The main controller includes a multi-channel data acquisition module, an algorithm module, a touch screen interaction module, a storage module, a data transmission module, a communication module, and an IO port control module.

[0054] The data collected by the multi-channel data collection module include temperature data of the stove head, temperature data of the kitchen, humidity data, opening data of the air volume valve, current data of the range fumes exhaust device, key data of the range fumes exhaust device and other data.

[0055] The algorithm modules include an over-air volume module, an optimization module, a synchronization module, a wind pressure module, a stability module, a deep learning module, a virtual simulation module, a multi-fan linkage control module, and an automatic learning module.

[0056] The communication module includes a frequency converter communication module and an electric meter communication module.

[0057] The zone controller includes a 485 interface module and a wireless interface module.

[0058] The number of the regional controllers is greater than 1, and the frequency bands of the regional controllers are different. The different frequency bands of each region ensure that there is no interference between regions, greatly improving the communication speed and data stability.

[0059] The power supply voltage of the zone controller is 24V.

[0060] The wiring of the zone controller requires two power lines and two communication lines.

[0061] The unit controller includes an air volume valve module, a power monitoring module, and an IO acquisition module.

[0062] The number of the unit controllers>1.

[0063] Specific: such as Figure 1 As shown, the main controller can exchange data with multiple zone controllers through the 485 bus, and communicate with multiple unit controllers wirelessly through the zone controllers, so that the fume exhaust equipment can work normally; the unit controller can also send the collected information data to the main controller through the zone controller, and the main controller processes the information data, thereby forming a complete kitchen wireless linkage system.

[0064] The power monitoring module monitors the current in the exhaust equipment and collects the current data information. The IO acquisition module collects the key information of the exhaust equipment and transmits the collected current data information and the key information of the exhaust equipment to the wireless interface module of the regional controller through wireless, and then transmits the data information to the main controller through the 485 module, and converts the information to the multi-channel data acquisition module through the meter communication module. At the same time, the multi-channel data acquisition module collects information data such as the temperature of the stove, the temperature of the kitchen, the humidity, the opening of the air volume valve, and uploads the data information of all kitchen equipment through the USB device through the data transmission module. The multi-channel data acquisition module stores the collected information in the storage module for storage. The algorithm module calculates and analyzes the data information stored in the data storage module through the super air volume module, the priority module, the synchronization module, the air pressure module and other modules, and the exhaust volume of each pipeline, the air volume of the air conditioning fan equipment, and other data information, especially the virtual module distributes and calculates the cooking points between the two air volume valves. According to the changes in the kitchen temperature, humidity and exhaust volume, the number of new fans to be opened is calculated according to the preferred order and then the power of the fan is adjusted. Keep the fresh air supply in the kitchen in a balanced state.

[0065] At the same time, the staff issues instructions through the touch screen, converts the issued instruction signals through the touch screen interaction module, and then sends the signals to the zone controller through the inverter communication module. The zone controller receives the signals through the 485 interface module, and then sends the signals to the unit control module through the wireless interface module. The air volume valve module receives the signal and opens the air volume valve in the smoke exhaust equipment to a certain degree. The fume exhaust equipment extracts and purifies the fumes in the kitchen.

[0066] When multiple kitchens share a multi-fan parallel system, when a small amount of demand is in use, the system will accurately calculate the dynamic efficiency of the fan based on the data collected by the multi-channel data module, through the cooperation between the multi-fan linkage control module and other algorithm modules, and turn on the number of fans and the frequency conversion frequency according to actual demand.

[0067] As the operation time increases, the algorithm module analyzes the information in the data storage module in the recent period through the self-learning module, deep learning module, etc., and automatically slightly increases the air volume for cooking equipment with high usage rate, and slightly reduces the air volume for cooking equipment with low usage rate. At the same time, the usage of cooking equipment is tracked and analyzed, the usage of cooking equipment is simulated through the background algorithm, and the maintenance of cooking equipment is analyzed and provided to users. In addition, the restaurant's operating data and the click-through rate of each job position can be simulated to help enhance the operator's management level of catering.

[0068] When the range hood equipment fails, the stability module will amplify the calculation corresponding to the sensors in the range hood equipment to the maximum, ensuring that even if all sensors are damaged, it will not affect the normal use of the kitchen exhaust, and at the same time remind the user.

Claims

1. A kitchen wireless linkage system, It is characterized in that It includes an oil fume exhaust device and a linkage device, wherein the linkage device includes a main controller, a zone controller, and a unit controller; The main controller includes a multi-channel data acquisition module, an algorithm module, a touch screen interaction module, a storage module, a data transmission module, a communication module, and an IO port control module; The algorithm module includes an over-air volume module, an optimization module, a synchronization module, a wind pressure module, a stability module, a deep learning module, a virtual simulation module, a multi-fan linkage control module, and an automatic learning module; The regional controller includes a 485 interface module and a wireless interface module; the number of the regional controllers is greater than 1, and the frequency bands of the regional controllers are different; the wiring of the regional controller requires two power lines and two communication lines; The data collected by the multi-channel data collection module include temperature data of the stove head, temperature data of the kitchen, humidity data, opening data of the air volume valve, current data of the range fumes exhaust device, and key data of the range fumes exhaust device; The super air volume module is used to calculate the exhaust volume of each main duct and secondary duct, and set the maximum limit of the exhaust volume to avoid the impact of the enhanced air volume on the life of the air duct; at the same time, when the equipment is not fully used, the system will consider enhancing the equipment in use, and adjust the air volume of the unused equipment to the equipment in use to enhance the user experience; The optimization module can automatically calculate the number of fresh air fans to be turned on and then adjust the power of the fans according to the optimization sequence according to the changes in kitchen temperature, humidity and exhaust volume; The synchronization module can calculate the negative pressure value of the kitchen through the fresh air coefficient to ensure that the kitchen is always in a negative pressure state, so that the fresh air supply in the kitchen is in a balanced state; The wind pressure module calculates the static wind pressure, dynamic wind pressure and performs curve calculation on the wind pressure, and adjusts the wind pressure curve compensation according to the wind volume measurement of each HZ frequency conversion, ensuring that each adjustment of 1HZ will fully meet the user's proper wind volume experience in terms of efficiency. At the same time, it can also judge whether the fan is in normal use according to the changes in the collected current change value; The virtual simulation algorithm module simulates that the air volume of an air volume valve can be divided into multiple cooking devices, and calculates the distribution of cooking points between two air volume valves, so that the air volume valves can be opened according to actual needs. The multi-fan linkage control module can calculate the dynamic change efficiency of the fan and accurately control the number of fans and the frequency conversion efficiency, which meets the distinction between functionality and usage time in the standard design, merges several kitchens into a multi-fan parallel system, improves the level of intelligent control, and reduces the area of ​​the exhaust shaft; enables the exhaust equipment to open the number of fans and the frequency conversion frequency according to actual needs; The data transmission module includes control transmission, isochronous transmission, interrupt transmission and data block transmission, which is used to expand access to other peripherals to transmit the data of all working equipment in the kitchen to the data acquisition module, in order to provide more comprehensive data support for the algorithm module, and then provide maintenance plans for various equipment to help users use them better; The communication module includes a frequency converter communication module and an electric meter communication module; The inverter communication module can convert the industrial frequency power supply into AC power supply of various frequencies, so that the main controller in the kitchen wireless linkage system can complete the control of the main circuit and the regional controller, making the data voltage more stable during the transmission process and preventing the problem of crosstalk between signals; The IO port control module can provide power distribution and data connection requirements for various sensors and actuator devices in the fume exhaust equipment, and is used for IO input and output control, mechanical buttons of the fume exhaust equipment, and identification of sensor trigger switches to achieve control of the dry contacts of the fume exhaust equipment.

2. A kitchen wireless linkage system according to claim 1, It is characterized in that The unit controller includes an air volume valve module, a power monitoring module, and an IO acquisition module.

3. A control method for the kitchen wireless linkage system according to any one of claims 1-2, It is characterized in that The following steps are involved: The main controller can exchange data with multiple zone controllers through the 485 bus, and communicate signals with multiple unit controllers wirelessly through the zone controllers to make the fume exhaust equipment work normally; the unit controller can also send the collected information data to the main controller through the zone controller, and the main controller processes the information data to form a complete kitchen wireless linkage system.

Images