Logistics real-time monitoring device applied to tobacco

Abstract

The utility model provides a logistics real-time monitoring device applied to tobacco, and effectively solves the problems that an existing monitoring system cannot monitor and process heating of a camera in real time, the quality of an obtained image is affected, even the image cannot be obtained, and judgment on a packaging state is also affected. The device further comprises a real-time monitoring module, the real-time monitoring module detects a temperature signal and an environment temperature signal of the camera in operation in real time, obtains a reminding signal based on the temperature signal and the environment temperature signal, and outputs the reminding signal to the analysis module; and the real-time monitoring module comprises a temperature detection unit and a temperature output unit, so that the quality of an image acquired by the camera is ensured.

Description

Technical Field

[0001] This utility model relates to the field of intelligent logistics technology, and in particular to a real-time logistics monitoring device for tobacco. Background Technology

[0002] Because tobacco needs to be sold throughout the country, logistics technology for transporting tobacco nationwide has become a key technology that tobacco companies are vigorously developing. For example, Chinese invention patent application number 202411315631.2, entitled "A Tobacco Logistics Monitoring System and Method Based on the Internet of Things," enables real-time tracking of tobacco goods from warehouse to transport vehicle by setting warehouse tags, tobacco tags, and transport vehicle tags. Radio frequency contactless identification technology improves efficient communication between tags, allowing for immediate acquisition of the location and status of goods. By acquiring and preprocessing images of tobacco packaging, the system automatically analyzes the packaging status and performs corresponding processing and sorting based on the analysis results, improving transportation safety and integrity.

[0003] This monitoring system requires images of the tobacco packaging to determine its status. During real-time transport by truck, the cameras need to remain running to capture images at any given moment. Over time, heat generation is unavoidable. When heated, the camera lens may experience slight thermal deformation, and the performance of its built-in image sensor may degrade, leading to a decrease in image quality. This can result in unclear images of the packaging's condition. Excessive heat can also cause the camera to automatically restart or freeze, further impacting image acquisition. Since these systems typically lack cooling devices, there's no effective way to address the issue.

[0004] In other words, existing monitoring systems cannot monitor and process camera heat in real time, which affects the quality of the acquired images or even makes it impossible to acquire images, and also affects the determination of packaging status.

[0005] Therefore, this utility model provides a new solution to this problem. Summary of the Invention

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a real-time monitoring device for tobacco logistics, which effectively solves the problem that the existing monitoring system cannot monitor and process the heat of the camera in real time, which affects the quality of the acquired images or even causes the inability to acquire images, and also affects the judgment of the packaging status.

[0007] The technical solution is a real-time monitoring device for tobacco logistics, including a data acquisition module and an analysis module. The data acquisition module includes a camera, and the device also includes a real-time monitoring module. The real-time monitoring module detects the temperature signal and ambient temperature signal of the camera in real time during operation, obtains an alert signal based on the temperature signal and the ambient temperature signal, and outputs the alert signal to the analysis module.

[0008] The real-time monitoring module includes a temperature detection unit and a temperature output unit;

[0009] The reminder signal includes a first reminder signal and a second reminder signal.

[0010] Furthermore, the temperature detection unit receives the ambient temperature signal based on the temperature signal, and outputs a first reminder signal based on the ambient temperature signal.

[0011] Furthermore, the temperature detection unit performs a subtraction operation on the temperature signal to obtain a temperature change signal, and receives the ambient temperature signal based on the temperature change signal.

[0012] Furthermore, the temperature detection unit performs a subtraction operation on the ambient temperature signal to obtain a temperature difference signal, and obtains a first reminder signal based on the temperature difference signal.

[0013] Furthermore, the temperature detection unit activates an oscillator based on the temperature difference signal, and the oscillator generates a first alert signal.

[0014] Furthermore, the temperature output unit compares the temperature signal with the ambient temperature signal and then generates a second reminder signal.

[0015] This utility model achieves the following beneficial effects:

[0016] This application addresses the issue of existing tobacco logistics monitoring systems by incorporating a real-time monitoring module. This module detects the temperature signal and ambient temperature signal of the camera during operation, generates an alert signal based on these signals, and outputs the alert signal to the analysis module. By utilizing the ambient temperature signal, the module ensures a more accurate temperature assessment of the camera's image quality, thereby further guaranteeing the quality of the images acquired by the camera. This effectively solves the problem in existing monitoring systems where real-time monitoring and processing of camera heat generation is impossible, affecting the quality of acquired images or even preventing image acquisition, and also impacting the determination of packaging status. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the framework of this utility model.

[0018] Figure 2 This is a circuit diagram of the real-time monitoring module of this utility model. Detailed Implementation

[0019] For the purposes of this utility model, the foregoing and other technical contents, features and effects are described in conjunction with the appendix below. Figure 1-2 The detailed description of the embodiments will make this clear. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0020] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0021] A real-time monitoring device for tobacco logistics includes a data acquisition module and an analysis module. The data acquisition module includes a camera, and the device also includes a real-time monitoring module. The real-time monitoring module detects the temperature signal and ambient temperature signal of the camera in real time during operation, obtains an alert signal based on the temperature signal and the ambient temperature signal, and outputs the alert signal to the analysis module.

[0022] The real-time monitoring module includes a temperature detection unit and a temperature output unit;

[0023] The reminder signal includes a first reminder signal and a second reminder signal.

[0024] The temperature detection unit detects the temperature signal of the camera during operation based on the temperature sensor U1. The temperature sensor U1 can be an infrared temperature sensor of the OS136A series or similar. The temperature signal is split into two paths via resistor R5. One path is directly output to the non-inverting input of operational amplifier U2A, and the other path is delayed via resistor R10 and capacitor C2 before being transmitted to the inverting input of operational amplifier U2A. That is, the inverting input of operational amplifier U2A receives the temperature signal from the previous moment. Operational amplifier U2A then subtracts the temperature signals from the two moments and outputs a temperature change signal. The temperature change signal represents the temperature change value between the previous moment and this moment. Based on the voltage judgment of the temperature change signal using diode D2, if the temperature change signal turns on diode D2, it indicates that the temperature change between the previous moment and this moment is too large, causing the camera to be in an abnormal temperature rise state. In this case, diode D2 turns on relay K1 and thyristor Q1. After relay K1 turns on, switch S1 closes, and the ambient temperature signal is output to operational amplifier U1A through resistor R8. The ambient temperature signal can be a temperature sensor of the same model as temperature sensor U1. The operational amplifier U1A also receives a standard room temperature signal provided by resistor R4. This standard room temperature signal represents a temperature of 25 degrees Celsius, at which the camera's performance is optimal, resulting in the best image quality. Operational amplifier U1A subtracts the ambient temperature signal from the standard room temperature signal and outputs a temperature difference signal. This temperature difference signal represents the difference between the camera's ambient temperature and the standard room temperature. When this temperature difference signal turns on transistor Q2, it indicates that the camera's ambient temperature is very close to the standard room temperature, meaning the camera is currently in a heating state. When the camera is in a state of heat, the heat will affect the quality of the acquired image. At this time, transistor Q2 turns on relay K2, relay K2 turns on switch S2, and then the oscillator with transistor Q3, capacitor C4, inductor L1 and capacitor C1 as the core starts and outputs the first reminder signal. The first reminder signal is directly output to the analysis module, reminding that the image quality acquired by the camera may be poor and needs to be processed by the camera. If the temperature difference signal turns on diode D4, it indicates that the ambient temperature is much different from the standard room temperature, that is, it is a cold winter time, and the temperature output unit is turned on.

[0025] The temperature detection unit includes a resistor R5. One end of resistor R5 is connected to the out pin of temperature sensor U1. The other end of resistor R5 is connected to one end of resistor R10, one end of resistor R3, the non-inverting input of operational amplifier U2A, and the anode of thyristor Q1. The inverting input of operational amplifier U2A is connected to the other end of resistor R10, one end of capacitor C2, and one end of resistor R2. The output terminal of operational amplifier U2A is connected to the anode of diode D2 and the other end of resistor R2. The cathode of diode D2 is connected to one end of relay K1, one end of capacitor C3, and the control electrode of thyristor Q1. The VCC pin of temperature sensor U1 is connected to one end of resistor R4, one end of resistor R13, the emitter of transistor Q2, and one end of switch S2. The positive power supply VCC is connected to the other end of resistor R4. The other end of resistor R4 is connected to one end of resistor R9 and the non-inverting input of operational amplifier U1A. The inverting input of operational amplifier U1A is connected to one end of resistor R8 and one end of resistor R7. The other end is connected to one end of switch S1, and the other end of switch S1 is connected to the ambient temperature signal. The output of operational amplifier U1A is connected to one end of resistor R7, the other end of resistor R13, and the base of transistor Q2. The collector of transistor Q2 is connected to one end of relay K2. The other end of switch S2 is connected to one end of capacitor C4 and one end of inductor L1. The other end of capacitor C4 is connected to the other end of inductor L1, one end of capacitor C7, and the collector of transistor Q3. The other end of capacitor C7 is connected to the analysis module. The base of transistor Q3 is connected to one end of resistor R6 and one end of capacitor C1. The other end of capacitor C1 is connected to one end of resistor R1 and the emitter of transistor Q3. The other end of resistor R1 is connected to the other end of resistor R6, the other end of relay K2, the other end of resistor R9, the other end of capacitor C3, the other end of resistor R3, the other end of relay K1, the other end of capacitor C2, and the gnd pin of temperature sensor U1 and connected to ground.

[0026] After diode D4 is turned on, the temperature output unit uses thyristor Q4, which is based on diode D4, to subtract the standard room temperature signal from the camera's temperature signal output by thyristor Q1 through operational amplifier U3A. If the difference between the standard room temperature signal and the temperature signal turns on transistor Q5, it indicates that the camera's temperature has risen to the standard room temperature state, meaning that the camera has overheated significantly and is in an abnormally hot state. In this case, transistor Q5 outputs a second reminder signal to the analysis module through diode D3, reminding the camera to be cooled down immediately.

[0027] The temperature output unit includes a thyristor Q4. The anode of thyristor Q4 is connected to the non-inverting input of operational amplifier U1A in the temperature detection unit, one end of resistor R9, and the other end of resistor R4. The control electrode of thyristor Q4 is connected to one end of capacitor C5 and the cathode of diode D4. The anode of diode D4 is connected to the output terminal of operational amplifier U1A in the temperature detection unit, the other end of resistor R13, and the base of transistor Q2. The cathode of thyristor Q4 is connected to the inverting input of operational amplifier U3A. The non-inverting input of operational amplifier U3A is connected to the cathode of thyristor Q1A in the temperature detection unit. The output terminal of 3A is connected to one end of resistor R12 and the base of transistor Q5. The emitter of transistor Q5 is connected to the other end of resistor R12, the emitter of transistor Q2 in the temperature detection unit, one end of resistor R13 and connected to the positive power supply VCC. The collector of transistor Q5 is connected to one end of resistor R11 and the anode of diode D3. The cathode of diode D3 is connected to the other end of capacitor C7 in the temperature detection unit and the analysis module. The other end of resistor R11 is connected to the other end of capacitor C5, the other end of relay K2 in the temperature detection unit and connected to ground.

[0028] In actual use, if the temperature detection unit collects a temperature signal of 3V via temperature sensor U1, and the previous communication voltage signal was 2V, then the temperature change signal obtained by operational amplifier U1A is 1V. Relay K1 then conducts, receiving a 2.5V ambient temperature signal. This ambient temperature signal is subtracted from the 3.5V standard room temperature signal by operational amplifier U1A, resulting in a 1V temperature difference signal. This temperature difference signal is then used to conduct thyristor Q4 via diode D4, allowing for further subtraction between the standard room temperature signal and the ambient temperature signal. If operational amplifier U3A conducts transistor Q5, it indicates that the image quality output by the camera has been significantly affected and may not be suitable for the analysis module to process. The camera needs to be processed as soon as possible. In this case, diode D3 outputs a second reminder signal to the analysis module, thus alerting the system user.

[0029] In use, the device further includes a real-time monitoring module, which comprises a temperature detection unit and a temperature output unit. The temperature detection unit detects the temperature signal of the camera during operation based on the temperature sensor U1. The operational amplifier U2A subtracts the temperature signals at two different times and outputs a temperature change signal. The voltage of the temperature change signal is judged based on diode D2. If the temperature change signal turns on diode D2, then diode D2 turns on relay K1 and thyristor Q1. After relay K1 turns on, switch S1 closes, and the ambient temperature signal is output to operational amplifier U1A via resistor R8. Operational amplifier U1A also receives a standard room temperature signal provided by resistor R4. Operational amplifier U1A subtracts the ambient temperature signal from the standard room temperature signal and outputs a temperature difference signal. When the temperature difference signal turns on transistor Q2, transistor Q2 turns on relay K2, relay K2 closes switch S2, and the oscillator with transistor Q3, capacitor C4, inductor L1, and capacitor C1 as its core starts, outputting a first reminder signal. The first reminder signal is directly output to the analysis module. If the temperature difference signal turns on diode D4, it indicates that the ambient temperature is significantly different from the standard room temperature, i.e., it is a cold winter moment, and the temperature output unit turns on. After diode D4 turns on, the temperature output unit, based on the thyristor Q4 which is turned on by diode D4, performs a subtraction operation between the standard room temperature signal and the camera temperature signal output by thyristor Q1 through operational amplifier U3A. When transistor Q5 turns on, transistor Q5 outputs a second reminder signal to the analysis module through diode D3.

[0030] This utility model achieves the following beneficial effects:

[0031] (1) This application sets up a real-time monitoring module for the existing tobacco logistics monitoring system. The real-time monitoring module detects the temperature signal and ambient temperature signal of the camera in real time during operation, and obtains an alert signal based on the temperature signal and the ambient temperature signal. The alert signal is then output to the analysis module. By using the ambient temperature signal, a more accurate temperature judgment effect is ensured for the image quality of the camera, thereby further ensuring the quality of the image acquired by the camera. This effectively solves the problem that the existing monitoring system cannot monitor and process the heat of the camera in real time, which affects the quality of the acquired image or even leads to the inability to acquire the image, and also affects the judgment of the packaging status.

[0032] (2) The real-time monitoring module described in this application includes a temperature monitoring unit. The temperature monitoring unit accurately calculates the temperature change of the camera during operation based on the operational amplifier U2A to obtain a temperature change signal. It also receives an ambient temperature signal based on the temperature change signal and calculates the ambient temperature signal based on the operational amplifier U1A to determine the temperature of the camera. This determines whether the image acquired by the camera is in the best state. If not, a first reminder signal is generated and output to the analysis module, thereby forming a real-time and accurate analysis effect on the camera.

[0033] (3) The real-time monitoring module described in this application also includes a temperature output unit. The temperature output unit determines that the camera is in a low-temperature environment such as winter based on the ambient temperature signal. Based on the operational amplifier U3A, it further calculates the temperature signal and standard room temperature signal of the camera during operation, thereby determining that the image acquired by the camera is likely to be greatly affected and the camera needs to be processed as soon as possible to ensure the smooth acquisition of images by the camera.

Claims

1. A real-time monitoring device for tobacco logistics, comprising a data acquisition module and an analysis module, wherein the data acquisition module includes a camera, characterized in that, The device also includes a real-time monitoring module, which detects the temperature signal and ambient temperature signal of the camera in real time during operation, obtains an alert signal based on the temperature signal and the ambient temperature signal, and outputs the alert signal to the analysis module. The real-time monitoring module includes a temperature detection unit and a temperature output unit; The reminder signal includes a first reminder signal and a second reminder signal.

2. The real-time monitoring device for tobacco logistics as described in claim 1, characterized in that, The temperature detection unit receives the ambient temperature signal based on the temperature signal and outputs a first reminder signal based on the ambient temperature signal.

3. The real-time monitoring device for tobacco logistics as described in claim 2, characterized in that, The temperature detection unit performs a subtraction operation on the temperature signal to obtain a temperature change signal, and receives the ambient temperature signal based on the temperature change signal.

4. The real-time monitoring device for tobacco logistics as described in claim 2, characterized in that, The temperature detection unit performs a subtraction operation on the ambient temperature signal to obtain a temperature difference signal, and obtains a first reminder signal based on the temperature difference signal.

5. The real-time logistics monitoring device for tobacco as described in claim 4, characterized in that, The temperature detection unit starts the oscillator based on the temperature difference signal, and the oscillator generates a first reminder signal.

6. The real-time monitoring device for tobacco logistics as described in claim 2, characterized in that, The temperature output unit compares the temperature signal with the ambient temperature signal and then generates a second reminder signal.

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