Smoke quantity detection device and method for baking room and baking room

Abstract

The present invention discloses a smoke loading amount detection device, a detection method, and a smoke loading barn. The device comprises a first human body sensor (1), a second human body sensor (2), and a collector. The first human body sensor (1) and the second human body sensor (2) are fixedly installed beside a door (31) of a smoke loading barn (3). The first human body sensor (1) is arranged outside the second human body sensor (2). A partition (4) is arranged between the first human body sensor (1) and the second human body sensor (2). The first human body sensor (1) and the second human body sensor (2) are connected to the collector. The collector detects the number of people loading smoke according to the signals of the first human body sensor (1) and the second human body sensor (2), and estimates the number of cigarette clips N1 and the amount of smoke loaded G1 according to the number of people loading smoke. The present invention provides a smoke loading amount detection device, a detection method, and a smoke loading barn. The device can detect the number of people loading smoke, and estimate the number of cigarette clips and the amount of smoke loaded according to the number of people loading smoke.

Description

Technical Field

[0001] The present invention relates to the technical field of baking barn equipment, and in particular to a baking barn smoke volume detection device, a detection method and a baking barn. Background Art

[0002] Currently, tobacco curing in my country is typically carried out in densely packed flue-curing barns. The loading volume within the barn is a crucial metric, but in practice, there is a lack of technical means to monitor the actual loading volume. To ensure tobacco curing quality, tobacco loading must be carried out in accordance with technical specifications. The loading volume is directly proportional to the density of the tobacco, which affects airflow within the barn, thereby impacting the quality of the tobacco. Furthermore, the loading volume can provide an approximate estimate of production output and is a core metric of primary concern to tobacco production and management departments. Collecting the daily loading volume of each flue-curing barn during the tobacco curing production phase allows for timely and accurate estimation of tobacco production fluctuations, providing reliable evidence for subsequent procurement and combating tobacco smuggling. Therefore, timely measurement of the loading volume of each flue-curing barn is crucial. Summary of the Invention

[0003] In view of at least one drawback of the prior art, the present invention aims to provide a smoke loading amount detection device for a flue-curing barn, which can detect the number of people loading smoke and estimate the number of cigarette clips and the amount of smoke loaded based on the number of people loading smoke.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a device for detecting the amount of smoke loaded in a baking room, comprising a first human body sensor, a second human body sensor and a collector, the first human body sensor and the second human body sensor being fixedly installed on one side of the door of the baking room, the first human body sensor being arranged on the outside of the second human body sensor, a partition being arranged between the first human body sensor and the second human body sensor, the first human body sensor and the second human body sensor being connected to the collector; the collector detects the number of people loading smoke according to the signals of the first human body sensor and the second human body sensor, and estimates the number of cigarette clips N1 and the amount of smoke loaded G1 according to the number of people loading smoke.

[0005] The number of loaded cigarette clips N1 is equal to the number of people loading cigarettes; the loading volume G1 = the number of loaded cigarette clips N1 × T1, where T1 is the theoretical weight of tobacco leaves in a single cigarette clip. T1 is 12 kg.

[0006] The curing room is equipped with a tobacco rack. A load cell is fixed at the bottom of the rack and connected to a data collector. The data collector calculates the number of loaded tobacco clips N2, the weight of each clip T2, and the total weight of the tobacco leaves G2 based on the data from the load cell. The final number of loaded tobacco clips N3 is calculated based on the estimated number of loaded tobacco clips N1. The total weight of tobacco leaves G2 is the total loaded tobacco amount calculated based on the data from the load cell. The actual weight of each clip T2 is typically between 10kg and 14kg.

[0007] The collector is connected to the baking room controller and the cloud server. The collector reads the baking room operation data of the baking room controller and uploads it to the cloud server; the collector uploads the final number of tobacco clips N3, the weight of each tobacco clip T2, and the total weight of tobacco leaves G2 to the cloud server; the cloud server sends the baking process to the collector according to the total weight of tobacco leaves G2, and the collector forwards the baking process to the controller.

[0008] The collector is provided with a single-chip microcomputer, which is connected to the first human body sensor and the second human body sensor. The single-chip microcomputer is connected to the weighing sensor via the first RS485 interface circuit; the single-chip microcomputer is connected to the baking room controller via the second RS485 interface circuit, and the single-chip microcomputer is connected to the cloud server via wireless communication equipment.

[0009] The single chip microcomputer is connected to an audible and visual prompter. When the single chip microcomputer recognizes that the cigarette clip enters or leaves the baking room, the audible and visual prompter gives an audible and visual prompt; when the device fails, an alarm is sounded.

[0010] A detection method for a smoke quantity detection device in a baking room, the key of which is:

[0011] When a person enters the baking room, the first human body sensor on the outside senses the person first and outputs a signal. Then the second human body sensor on the inside senses the person and outputs a sensing signal. There is a time difference between the two signals. When the signal of the first human body sensor on the outside is at a falling edge and the second human body sensor on the inside is at a high level, the collector regards it as a signal of entering the baking room.

[0012] When a person leaves the baking room, the second human body sensor on the inside senses the person first and outputs a signal. Then the first human body sensor on the outside senses the person and outputs a sensing signal. There is a time difference between the two signals. When the signal of the second human body sensor on the inside falls and the first human body sensor on the outside is at a high level, the collector regards it as a signal of leaving the baking room.

[0013] The number of loaded tobacco clips N1 is equal to the number of people entering or leaving the flue-curing room; the loading volume G1 = the number of loaded tobacco clips N1 × T1, where T1 is the theoretical weight of tobacco leaves in a single tobacco clip.

[0014] The key to the detection method of the smoke loading amount detection device of the flue-curing barn is that when the number of signals entering the flue-curing barn and the number of signals leaving the flue-curing barn are not equal, the signal with the larger number is selected to calculate the number of smoke clips N1.

[0015] The key to the detection method of the smoke loading detection device for the flue-curing room is that: the signal pulses entering the flue-curing room or the signal pulses leaving the flue-curing room that meet the following three conditions are accumulated and used as the number of smoke clips N1;

[0016] (1) Minimum time condition: the time between the current pulse and the previous pulse is not less than the minimum time;

[0017] (2) Maximum time condition: the time between the current pulse and the previous pulse shall not exceed the maximum time; if the maximum time condition is exceeded, it will be regarded as an invalid pulse signal entering or exiting the baking room;

[0018] (3) The condition of the number of continuous pulses is that the number of continuous pulses that meet the shortest time and the longest time must be greater than or equal to a certain value M. That is, M or more pulses that meet the shortest time condition and the longest time condition are collected as the final valid pulse number.

[0019] The final effective pulse number is taken as the cigarette clip number N1.

[0020] A detection method for a smoke loading detection device in a flue-curing barn, the key of which is: a method for calculating the number of loaded cigarette clips N2, wherein a valid rising edge of a weighing signal is detected, and the detection criteria for a valid rising edge are that the weight increase corresponding to the rising edge is greater than a weight threshold A, and the minimum time the weight signal remains stable after the rising edge is greater than a time threshold B;

[0021] Calculation method for tobacco leaf weight of a single cigarette clip:

[0022] m tob_i =m all_i -m shelf -m clamp

[0023] m tob_i The weight of a single-fold tobacco leaf corresponding to the i-th effective rising edge;

[0024] m all_i The sum of the weight of the cigarette rack and the cigarette clips and tobacco leaves thereon after the i-th effective rising edge;

[0025] m clamp Theoretical weight of a single cigarette clip;

[0026] m shelf The weight of the cigarette rack and the cigarette clips and tobacco leaves thereon after the i-1th effective rising edge;

[0027] The total weight G2 of tobacco leaves is calculated by adding up the weights T2 of tobacco leaves of all individual cigarette clips (33).

[0028] A detection method for a smoke quantity detection device in a baking room, the key of which is to include the following steps:

[0029] Step A: The collector collects the number of signals of people entering and leaving the curing room through the first human body sensor and the second human body sensor; the collector also collects the weighing signal of tobacco leaves through the weighing sensor;

[0030] Step B: The collector selects the maximum value of the number of signals of personnel entering the curing room and the number of signals of personnel leaving the curing room, and calculates the corresponding number of loaded cigarette clips N1; and calculates the corresponding number of loaded cigarette clips N2, the weight of each cigarette clip T2, and the total weight of the tobacco leaves G2 according to the tobacco leaf weighing signal;

[0031] Step C: The collector selects the larger value of the number of cigarette clips N1 calculated based on the signal of people entering and leaving the curing room and the number of cigarette clips N2 calculated based on the tobacco leaf weighing signal as the final estimated number of cigarette clips N3;

[0032] Step D: The collector sends the number of cigarette clips N3, the weight of each cigarette clip T2, and the total weight of the cigarette leaves G2 to the server;

[0033] Step E: The server checks the cigarette loading specifications and sends a prompt message;

[0034] Step F: The server sends the corresponding baking process to the collector according to the smoke density;

[0035] Step G: The collector sends the baking process returned by the server to the baking room controller; the baking process includes target temperature and humidity, and circulating fan speed.

[0036] The key to the detection method of the smoke loading detection device for the flue-curing barn is that the smoke loading specification in step E includes two aspects:

[0037] (1) Whether the weight T2 of a single tobacco clip exceeds the range, the weight range is [minimum weight of a single tobacco clip, maximum weight of a single tobacco clip];

[0038] (2) Whether the number of cigarette clips N3 exceeds the range. The range of the number of cigarette clips N3 is [minimum number of cigarette clips, maximum number of cigarette clips].

[0039] The invention relates to a baking room, the key point of which is that it comprises the baking room smoke quantity detection device.

[0040] Significant effect: The present invention provides a device and method for detecting the amount of smoke loaded in a baking room, and a baking room, which can detect the number of people loading smoke, and estimate the number of cigarette clips and the amount of smoke loaded according to the number of people loading smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a circuit structure block diagram of the present invention;

[0042] Figure 2 This is a schematic diagram of the installation position of the first human body sensor;

[0043] Figure 3 Schematic diagram of the combined structure of the first human body sensor and the second human body sensor;

[0044] Figure 4 This is the power circuit diagram of the collector;

[0045] Figure 5 This is a diagram of the microcontroller and its peripheral circuits;

[0046] Figure 6 This is the circuit diagram of the warning light interface;

[0047] Figure 7 This is the circuit diagram of the sound alarm interface;

[0048] Figure 8 This is the circuit diagram of the human body sensor interface;

[0049] Figure 9 This is the circuit diagram of the weighing sensor interface;

[0050] Figure 10 This is the circuit diagram of the baking room controller interface;

[0051] Figure 11 Circuit diagram of wireless communication module;

[0052] Figure 12 This is the circuit diagram of the SIM card slot;

[0053] Figure 13 A schematic diagram of the pulses generated by people entering and leaving the baking room;

[0054] Figure 14 Pulse diagram for the collector to identify valid and invalid personnel;

[0055] Figure 15 This is a schematic diagram of the installation position of the weighing sensor;

[0056] Figure 16 The pulse diagram of the weight change of the cigarette rack is shown in FIG.

[0057] Figure 17 A flow chart showing adjustment of the baking process according to the amount of smoke charged;

[0058] Figure 18 This is a structural diagram of the baking room. DETAILED DESCRIPTION

[0059] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0060] like Figures 1-18As shown, a device for detecting the amount of smoke loaded in a baking room includes a first human body sensor 1, a second human body sensor 2, and a collector. The first human body sensor 1 and the second human body sensor 2 are fixedly installed on one side of the door 31 of the baking room 3, the first human body sensor 1 is arranged on the outside of the second human body sensor 2, and a partition 4 is provided between the first human body sensor 1 and the second human body sensor 2. The first human body sensor 1 and the second human body sensor 2 are connected to the collector; the collector detects the number of people loading smoke according to the signals of the first human body sensor 1 and the second human body sensor 2, and estimates the number of cigarette clips N1 and the amount of smoke loaded G1 according to the number of people loading smoke.

[0061] The number of cigarette clips N1 is equal to the number of people who load cigarettes; the loading volume G1 = the number of cigarette clips N1 × T1, where T1 is the theoretical weight of tobacco leaves in a single cigarette clip.

[0062] A tobacco loading rack 32 is provided in the curing room 3, and a weighing sensor 5 is fixedly provided at the bottom of the tobacco loading rack 32, and the weighing sensor 5 is connected to the collector; the collector calculates the number of tobacco clips N2, the weight of each tobacco clip T2, and the total weight of tobacco leaves G2 based on the data of the weighing sensor 5; and calculates the final number of tobacco clips N3 based on the estimated number of tobacco clips N1.

[0063] The collector is connected to the baking room controller and the cloud server. The collector reads the baking room operation data of the baking room controller and uploads it to the cloud server; the collector uploads the final number of tobacco clips N3, the weight of each tobacco clip T2, and the total weight of tobacco leaves G2 to the cloud server; the cloud server sends the baking process to the collector according to the total weight of tobacco leaves G2, and the collector forwards the baking process to the controller.

[0064] The collector is provided with a single-chip microcomputer, which is connected to the first human body sensor 1 and the second human body sensor 2. The single-chip microcomputer is connected to the weighing sensor 5 via the first RS485 interface circuit; the single-chip microcomputer is connected to the baking room controller via the second RS485 interface circuit, and the single-chip microcomputer is connected to the cloud server via wireless communication equipment.

[0065] Figure 4 This is the power circuit diagram of the collector; the power circuit supplies power to the microcontroller.

[0066] Figure 5 This is a diagram of the single-chip microcomputer and its peripheral circuits; the single-chip microcomputer uses the C8051F single-chip microcomputer.

[0067] Figure 6 This is the circuit diagram of the warning light interface; the single chip microcomputer is connected to the warning light through the warning light interface to send out a light alarm signal. Figure 7 This is the circuit diagram of the sound alarm interface; the microcontroller is connected to the speaker through the sound alarm interface to emit a sound alarm signal.

[0068] Figure 8This is a circuit diagram of a human body sensor interface; the single chip microcomputer is connected to the first human body sensor 1 and the second human body sensor 2 via the human body sensor interface.

[0069] Figure 9 This is a circuit diagram of a weighing sensor interface; the single chip microcomputer is connected to a weighing sensor 5 via the weighing sensor interface; the interface is a first RS485 interface.

[0070] Figure 10 This is the circuit diagram of the baking room controller interface; the single chip microcomputer is connected to the baking room controller via the baking room controller interface; this interface is the second RS485 interface.

[0071] Figure 11 Circuit diagram of wireless communication module; microcontroller connected to SIM card slot via wireless communication module; Figure 12 This is a circuit diagram of a SIM card slot; the wireless communication device includes a wireless communication module and a SIM card slot, and the wireless communication device is connected to a cloud server via a mobile network.

[0072] The single chip microcomputer is connected to an audio-visual prompter, that is, a prompt light and a speaker. When the single chip microcomputer recognizes that the cigarette clip 33 enters or leaves the baking room, the audio-visual prompter will give an audio-visual prompt; when the device fails, an alarm will be issued.

[0073] like Figure 13 As shown in the figure, a detection method of a smoke detection device for a baking room is provided, the key points of which are:

[0074] When a person enters the baking room, the first human body sensor 1 on the outside first senses the person and outputs a signal, and then the second human body sensor 2 on the inside senses the person and outputs a sensing signal. There is a time difference between the two signals. When the signal of the first human body sensor 1 on the outside is at a falling edge and the second human body sensor 2 on the inside is at a high level, the collector regards it as a signal of entering the baking room;

[0075] When a person leaves the baking room, the second human body sensor 2 on the inside first senses the person and outputs a signal, and then the first human body sensor 1 on the outside senses the person and outputs a sensing signal. There is a time difference between the two signals. When the signal of the second human body sensor 2 on the inside falls and the first human body sensor 1 on the outside is at a high level, the collector regards it as a signal of leaving the baking room;

[0076] The number of loaded tobacco clips N1 is equal to the number of people entering or leaving the flue-curing room; the loading volume G1 = the number of loaded tobacco clips N1 × T1, where T1 is the theoretical weight of tobacco leaves in a single tobacco clip.

[0077] The key to the detection method of the smoke loading amount detection device of the flue-curing barn is that when the number of signals entering the flue-curing barn and the number of signals leaving the flue-curing barn are not equal, the signal with the larger number is selected to calculate the number of smoke clips N1.

[0078] The key to the detection method of the smoke loading detection device for the flue-curing room is that: the signal pulses entering the flue-curing room or the signal pulses leaving the flue-curing room that meet the following three conditions are accumulated and used as the number of smoke clips N1;

[0079] (1) Minimum time condition: the time between the current pulse and the previous pulse is not less than the minimum time;

[0080] (2) Maximum time condition: the time between the current pulse and the previous pulse shall not exceed the maximum time; if the maximum time condition is exceeded, it will be regarded as an invalid pulse signal entering or exiting the baking room;

[0081] (3) The condition of the number of continuous pulses is that the number of continuous pulses that meet the shortest time and the longest time must be greater than or equal to a certain value M. That is, M or more pulses that meet the shortest time condition and the longest time condition are collected as the final valid pulse number.

[0082] The final effective pulse number is taken as the cigarette clip number N1.

[0083] A detection method for a smoke loading detection device in a flue-curing barn, the key of which is: a method for calculating the number of loaded smoke clips N2, wherein a valid rising edge of a weighing signal is detected, and it is considered as one smoke clip 33; the criteria for determining a valid rising edge are that the weight increase corresponding to the rising edge is greater than a weight threshold A, and the minimum time that the weight signal remains stable after the rising edge is greater than a time threshold B;

[0084] Calculation method for tobacco leaf weight of a single cigarette clip 33:

[0085] m tob_i =m all_i -m shelf -m clamp

[0086] m tob_i The weight of a single-fold tobacco leaf corresponding to the i-th effective rising edge;

[0087] m all_i The weight of the tobacco rack 32 and the tobacco clips 33 thereon and the tobacco leaves after the i-th effective rising edge;

[0088] m clamp Theoretical weight of a single cigarette clip 33;

[0089] m shelf The weight of the tobacco rack 32 and the tobacco clips 33 thereon and the tobacco leaves after the i-1th effective rising edge;

[0090] The total weight G2 of tobacco leaves is calculated by adding up the weights T2 of tobacco leaves of all individual cigarette clips 33 .

[0091] A detection method for a smoke quantity detection device in a baking room, the key of which is to include the following steps:

[0092] Step A: The collector collects the number of signals of people entering and leaving the curing barn through the first human body sensor 1 and the second human body sensor 2; the collector also collects the weighing signal of tobacco leaves through the weighing sensor 5;

[0093] Step B: The collector selects the maximum value of the number of signals of personnel entering the curing room and the number of signals of personnel leaving the curing room, and calculates the corresponding number of loaded cigarette clips N1; and calculates the corresponding number of loaded cigarette clips N2, the weight of each cigarette clip T2, and the total weight of the tobacco leaves G2 according to the tobacco leaf weighing signal;

[0094] Step C: The collector selects the larger value of the number of cigarette clips N1 calculated based on the signal of people entering and leaving the curing room and the number of cigarette clips N2 calculated based on the tobacco leaf weighing signal as the final estimated number of cigarette clips N3;

[0095] Step D: The collector sends the number of cigarette clips N3, the weight of each cigarette clip T2, and the total weight of the cigarette leaves G2 to the server;

[0096] Step E: The server checks the cigarette loading specifications and sends a prompt message;

[0097] Step F: The server sends the corresponding baking process to the collector according to the tobacco packing density; the tobacco packing density is related to the number of tobacco clips N3 and the total weight of tobacco leaves G2.

[0098] Step G: The collector sends the baking process returned by the server to the baking room controller; the baking process includes target temperature and humidity, and circulating fan speed.

[0099] The key to the detection method of the smoke loading detection device for the flue-curing barn is that the smoke loading specification in step E includes two aspects:

[0100] (1) Whether the weight T2 of a single tobacco clip exceeds the range, the weight range is [minimum weight of a single tobacco clip, maximum weight of a single tobacco clip];

[0101] (2) Whether the number of cigarette clips N3 exceeds the range. The range of the number of cigarette clips N3 is [minimum number of cigarette clips, maximum number of cigarette clips].

[0102] This device uses two combined human sensors to identify people entering and exiting the curing room and output pulse signals. These sensors can be infrared, millimeter-wave radar, or cameras with human recognition capabilities. Based on the characteristics of the tobacco loading process, this device can design an effective pulse statistics method to estimate the number of clips (N1). Equipped with a tobacco leaf weight measurement device, this device automatically identifies the clip weight and the number of clips (N2), verifying these with the estimated number (N1). The device can also assess the compliance of the tobacco loading process (e.g., whether the weight of a single clip meets the requirements, and whether the number of clips meets the requirements).

[0103] Device composition structure:

[0104] The detection device is centered on the collector. The input signals include the first human body sensor 1 outside the curing room, the second human body sensor 2 inside the curing room, and the weighing sensor 5 of the tobacco leaves. When it detects people entering or leaving the curing room, it outputs sound and light prompt signals.

[0105] The collector communicates with the baking room controller, reads the baking room operation data and uploads it to the cloud server.

[0106] The collector calculates the total weight G2 of the packed cigarettes using the signals of the first human body sensor 1, the second human body sensor 2 and the tobacco leaf weight signal, and uploads the calculated value to the cloud server.

[0107] The server sends the baking process to the collector based on the total weight of the cigarettes G2, and the collector forwards it to the controller to modify the baking process.

[0108] Sound and light prompter: its function is to give sound and light prompts when the collector recognizes that the smoke clip 33 enters or leaves the baking room 3; and to give an alarm when the device fails.

[0109] The output signal types of the first human body sensor 1 and the second human body sensor 2 are high and low levels.

[0110] The weighing sensor 5 is connected to the collector via RS485 communication.

[0111] The collector and the baking room controller are connected using the RS485 communication interface.

[0112] The collector and the sound and light prompter adopt switch control mode.

[0113] Human body sensor structure and installation location:

[0114] The first human body sensor 1 and the second human body sensor 2 are installed at the main door frame position of the door 31 of the baking room 3. The sensing angle covers the entire door frame to ensure that people entering and exiting can be correctly sensed.

[0115] The human body sensor is composed of two human body sensors, including a first human body sensor 1 and a second human body sensor 2, with a partition 4 in the middle for distinguishing the sensing ranges of the two human body sensors to facilitate identification of the direction of entry and exit of people.

[0116] Figure 2 This is a schematic diagram of the installation location of the human body sensor; Figure 3 Schematic diagram of the combined structure of two human body sensors.

[0117] A method for identifying the direction of entry and exit of a baking room 3 based on the signal of a human body sensor, wherein the two human body sensors include a first human body sensor 1 on the outside and a second human body sensor 2 on the inside. A partition 4 is provided between the first human body sensor 1 and the second human body sensor 2 to distinguish the sensing ranges of the two human body sensors, thereby facilitating identification of the direction of entry and exit of a person. Figure 13 Schematic diagram of the pulse generated when a person enters the baking room.

[0118] Method for converting the human body sensor signal into the number of cigarette clips N1 (cigarette volume G1):

[0119] Under normal circumstances, the signal of entering the baking room and the signal of leaving the baking room are one-to-one corresponding. If the number of one of the signals is greater, the signal with the greater number is selected to calculate the number of cigarette clips N1.

[0120] The method for calculating the number of cigarette clips N1 is as follows: the number of signal pulses entering the curing room that meets the three conditions is accumulated and used as the number of cigarette clips N1.

[0121] (1) Minimum time condition. The time between the current pulse and the previous pulse must not be less than the minimum time, for example, 5 seconds. This is because it takes a certain amount of time for people to enter and exit the baking room 3. If it is less than a reasonable time, it is considered that the person is moving back and forth near the door frame, and the signal of entering and exiting the baking room is invalid.

[0122] (2) Maximum time condition. The time between the current pulse and the previous pulse should not exceed the maximum time, for example, 12 hours. The reason is that the tobacco loading process is a continuous process and needs to be completed within one day. If the reasonable interval is exceeded, it will be regarded as an invalid entry and exit signal.

[0123] (3) Continuous pulse number condition. The number of continuous pulses that meet the minimum and maximum time conditions must be greater than a certain value, such as 5. That is, only when 5 pulses that meet the minimum and maximum time conditions are collected can it be considered the final valid pulse number. Because cigarette loading is usually a continuous process, it usually involves dozens or hundreds of cigarette clips 33, that is, dozens or hundreds of pulses. Therefore, if the number of continuous pulses is less than a certain value, it is considered an invalid pulse. Figure 14 Schematic diagram of the pulses used by the collector to identify valid and invalid personnel.

[0124] Method for calculating the number of cigarette clips N2 and the weight of tobacco leaves based on the signal of the tobacco leaf weighing sensor 5:

[0125] The weighing sensor 5 is installed below the cigarette rack 32. The weighing signal is obtained by subtracting the weight of the cigarette rack 32 and the weight of the original cigarette clips 33 and tobacco leaves thereon, and then the current weight of the cigarette clips 33 and tobacco leaves is obtained. Figure 15 This is a schematic diagram of the installation position of the weighing sensor 5.

[0126] The weighing signal during the loading process rises in a step-like manner. Based on this signal, the number of loaded cigarette clips N2, the weight of a single cigarette clip T2, and the total weight of tobacco leaves G2 are calculated.

[0127] Calculation method for the number of loaded cigarette clips N2: Detecting a valid rising edge of the weighing signal is considered a cigarette clip 33. The criteria for determining a valid rising edge are that the weight increase corresponding to the rising edge is greater than a certain value, such as 2kg, and the minimum time the weight signal remains stable after the rising edge is greater than a certain value, such as 3 seconds. Figure 16 Schematic diagram of pulses showing weight changes of the cigarette rack; each step pulse is regarded as adding a cigarette clip 33 to the cigarette rack 32.

[0128] Tips for irregular cigarette loading process:

[0129] After receiving the cigarette loading process data, the information platform records and displays the loading data and sends prompt information to the administrator for irregular data, including two aspects:

[0130] (1) The weight of a single clip of tobacco leaves exceeds the range [minimum weight of a single clip of tobacco leaves, maximum weight of a single clip of tobacco leaves], for example, the minimum weight is 10kg, the maximum weight is 14kg; a single person can only take one clip of tobacco leaves at a time.

[0131] (2) The number of cigarette clips exceeds the range [minimum number of cigarette clips, maximum number of cigarette clips], for example, the minimum value is 300 and the maximum value is 450.

[0132] The process of adjusting the baking process according to the amount of smoke:

[0133] This device automatically counts the loading volume G1, the number of clips N3, the weight of each clip T2, and the total weight G2, eliminating the time-consuming and difficult-to-monitor manual counting issues. Based on the loading data, the server sends baking process instructions to the flue-curing barn controller, optimizing baking parameters and improving baking quality. Based on the loading volume data, management personnel assess whether loaders are following loading specifications. By measuring the weight of tobacco leaves in flue-curing barn 3, tobacco yield can be estimated.

[0134] like Figure 18 As shown, a curing barn 3 includes the above-mentioned curing barn smoke loading amount detection device; it includes a first human body sensor 1, a second human body sensor 2 and a collector. The first human body sensor 1 and the second human body sensor 2 are fixedly installed next to the door 31 of the curing barn 3, the first human body sensor 1 is arranged on the outside of the second human body sensor 2, and a partition 4 is arranged between the first human body sensor 1 and the second human body sensor 2. The first human body sensor 1 and the second human body sensor 2 are connected to the collector; the collector detects the number of people loading cigarettes according to the signals of the first human body sensor 1 and the second human body sensor 2, and estimates the number of cigarette clips N1 and the smoke loading amount G1 according to the number of people loading cigarettes.

[0135] A temperature and humidity sensor 6 is fixedly installed in the curing room 3. A weighing sensor 5 is fixedly installed at the bottom of a cigarette rack 32 in the curing room 3. The weighing sensor 5 is connected to a collector. The collector calculates the final number of cigarette clips N2 and the cigarette quantity G2 based on the data of the weighing sensor 5 and the estimated number of cigarette clips N1. The legs of the tobacco loading rack 32 are also fixed with a blocking cover 321, which is in the shape of a hemispherical shell and has a smooth surface. The blocking cover 321 is used to prevent small animals, insects, etc. from climbing up the hanging rod on the top of the tobacco loading rack 32 along the legs. A plurality of tobacco clips 33 are hung on the hanging rod on the top of the tobacco loading rack 32. The tobacco clips 33 are used to clamp tobacco leaves. At least two horizontal support rods 322 are fixedly provided in the middle of the tobacco loading rack 32, and a plurality of separators 323 are installed on the support rods 322. The separators 323 are in the shape of a "human" or a triangular frame, and their length extends along the front and rear direction of the curing room 3. The surface of the separator 323 is provided with many air holes. One separator 323 corresponds to one tobacco clip 33, which is used to separate the tobacco leaves on the tobacco clip 33 into two clusters to facilitate faster drying of the tobacco leaves. The curing barn 3 has an exhaust vent at the top of one side. This vent can be opened when moisture inside the curing barn 3 needs to be exhausted and the temperature needs to be adjusted. It also has a first electric door 71 installed at the vent, along with an exhaust pipe 7. Inside this pipe is a storage basket 8 with multiple through-holes 81. Four support pillars are located at the bottom of the basket 8, which contains multiple neck pillows 9. These pillows are fitted with breathable covers filled with tea leaves. When the curing barn 3 is vented, the tea leaves absorb the aroma of the tobacco leaves, reducing exhaust emissions. The pillows also have the refreshing aroma of both tea and cigarettes, making them a refreshing option for those who enjoy smoking. A second electric door 72 can be installed at the outer end of the exhaust pipe 7. Both doors are connected to the curing barn controller and can be opened when the curing barn 3 needs to be vented. After smoking, the pillows 9 are sealed and packaged.

[0136] Finally, it should be noted that the above examples are only specific implementation examples of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and variations fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A smoke detection device for a baking room, characterized in that: The device comprises a first human body sensor (1), a second human body sensor (2) and a collector. The first human body sensor (1) and the second human body sensor (2) are fixedly installed on one side of a door (31) of a baking room (3). The first human body sensor (1) is arranged outside the second human body sensor (2). A partition (4) is arranged between the first human body sensor (1) and the second human body sensor (2). The first human body sensor (1) and the second human body sensor (2) are connected to the collector. The collector detects the number of people loading tobacco according to the signals of the first human body sensor (1) and the second human body sensor (2), and estimates the number of loaded tobacco clips N1 and the loaded tobacco quantity G1 according to the number of people loading tobacco. The number of loaded tobacco clips N1 is equal to the number of people loading tobacco. The loaded tobacco quantity G1 = the number of loaded tobacco clips N1×T1, where T1 is the theoretical weight of tobacco leaves in a single tobacco clip (33). A tobacco loading rack (32) is provided in the curing room (3), a weighing sensor (5) is fixedly provided at the bottom of the tobacco loading rack (32), and the weighing sensor (5) is connected to a collector; the collector calculates the number of tobacco clips N2, the weight of each tobacco clip T2, and the total weight of tobacco leaves G2 based on data from the weighing sensor (5); and calculates the final number of tobacco clips N3 based on the estimated number of tobacco clips N1.

2. The smoke volume detection device for a baking room according to claim 1, characterized in that: The collector is connected to the baking room controller and the cloud server. The collector reads the baking room operation data of the baking room controller and uploads it to the cloud server; the collector uploads the final number of tobacco clips N3, the weight of each tobacco clip T2, and the total weight of tobacco leaves G2 to the cloud server; the cloud server sends the baking process to the collector according to the total weight of tobacco leaves G2, and the collector forwards the baking process to the controller.

3. The detection method of the smoke volume detection device of the baking room according to claim 1, characterized in that: When a person enters the baking room, the first human body sensor (1) on the outside first senses the person and outputs a signal, and then the second human body sensor (2) on the inside senses the person and outputs a sensing signal. There is a time difference between the two signals. When the signal of the first human body sensor (1) on the outside is at a falling edge and the second human body sensor (2) on the inside is at a high level, the collector regards it as a signal of entering the baking room; When a person leaves the baking room, the second human body sensor (2) on the inside first senses the person and outputs a signal, and then the first human body sensor (1) on the outside senses the person and outputs a sensing signal. There is a time difference between the two signals. When the signal of the second human body sensor (2) on the inside is at a falling edge and the signal of the first human body sensor (1) on the outside is at a high level, the collector regards it as a signal of leaving the baking room; The number of loaded tobacco clips N1 is equal to the number of people entering or leaving the curing room; the loading volume G1 = the number of loaded tobacco clips N1×T1, where T1 is the theoretical weight of tobacco leaves in a single tobacco clip (33).

4. The detection method of the smoke volume detection device of the baking room according to claim 3, characterized in that: When the number of signals entering the curing room and the number of signals leaving the curing room are not equal, the signal with the larger number is selected to calculate the number of cigarette clips N1.

5. The detection method of the smoke volume detection device of the baking room according to any one of claims 3 or 4, characterized in that: The signal pulses entering or leaving the curing room that meet the following three conditions are accumulated and used as the number of cigarette clips N1; (1) Minimum time condition: the time between the current pulse and the previous pulse is not less than the minimum time; (2) Maximum time condition: the time between the current pulse and the previous pulse is not greater than the maximum time; If the maximum time condition is exceeded, it will be regarded as an invalid pulse signal for entering or exiting the baking room; (3) The condition of the number of continuous pulses is that the number of continuous pulses that meet the shortest time and the longest time must be greater than or equal to a certain value M. That is, M or more pulses that meet the shortest time condition and the longest time condition are collected as the final valid pulse number.

6. The detection method of the smoke volume detection device of the baking room according to claim 1, characterized in that: The calculation method of the number of loaded cigarette clips N2 is that if a valid rising edge of the weighing signal is detected, it is considered as a cigarette clip (33); the judgment standard of the valid rising edge is that the weight increase value corresponding to the rising edge is greater than the weight threshold A, and the shortest time for the weight signal to remain stable after the rising edge is greater than the time threshold B; Method for calculating the weight of tobacco leaves in a single cigarette clip (33): m tob_i =m all_i -m shelf -m clamp m tob_i The weight of a single-fold tobacco leaf corresponding to the i-th effective rising edge; m all_i The weight of the tobacco rack (32) and the tobacco clips (33) thereon and the tobacco leaves after the i-th effective rising edge; m clamp Theoretical weight of a single cigarette clip (33); m shelf The weight of the tobacco rack (32) and the tobacco clips (33) thereon and the tobacco leaves after the i-1th effective rising edge; the total weight G2 of the tobacco leaves is calculated by accumulating the tobacco leaf weights T2 of all the individual tobacco clips (33).

7. The detection method of the smoke volume detection device of the baking room according to claim 2, characterized in that: The steps include: Step A: The collector collects the number of signals of people entering the curing room and the number of signals of people leaving the curing room through the first human body sensor (1) and the second human body sensor (2); the collector also collects tobacco leaf weighing signals through the weighing sensor (5); Step B: The collector selects the maximum value of the number of signals of personnel entering the curing room and the number of signals of personnel leaving the curing room, and calculates the corresponding number of loaded cigarette clips N1; and calculates the corresponding number of loaded cigarette clips N2, the weight of each cigarette clip T2, and the total weight of the tobacco leaves G2 according to the tobacco leaf weighing signal; Step C: The collector selects the larger value of the number of cigarette clips N1 calculated based on the signal of people entering and leaving the curing room and the number of cigarette clips N2 calculated based on the tobacco leaf weighing signal as the final estimated number of cigarette clips N3; Step D: The collector sends the number of cigarette clips N3, the weight of each cigarette clip T2, and the total weight of the cigarette leaves G2 to the server; Step E: The server checks the cigarette loading specifications and sends a prompt message; Step F: The server sends the corresponding baking process to the collector according to the smoke density; Step G: The collector sends the baking process returned by the server to the baking room controller; The baking process includes target temperature and humidity, and circulating fan speed.

8. The detection method of the smoke volume detection device of the baking room according to claim 7, characterized in that: The cigarette loading specification described in step E includes two aspects: (1) Whether the weight T2 of a single tobacco clip exceeds the range, the weight range is [minimum weight of a single tobacco clip, maximum weight of a single tobacco clip]; (2) Whether the number of cigarette clips N3 exceeds the range. The range of the number of cigarette clips N3 is [minimum number of cigarette clips, maximum number of cigarette clips].

9. A curing room, characterized in that: The device comprises the smoke quantity detection device for a baking room as described in any one of claims 1-2.

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