Temperature monitoring system

Abstract

The invention relates to a temperature monitoring system, which is used for monitoring and controlling the temperature of concrete in a concrete mixer truck, and comprises at least one temperature monitoring device applied to the concrete mixer truck, a terminal, a heating device and a cooling device, the temperature monitoring device applied to the concrete mixer truck is used for monitoring concrete temperature information in the concrete mixer truck, can be arranged in a tank body of the concrete mixer truck, freely rolls in the tank body of the concrete mixer truck, is connected with a terminal in a wireless communication mode, and transmits the concrete temperature information to the terminal. The terminal controls start and stop of the heating device or the cooling device according to the concrete temperature information. By means of the temperature monitoring system, accurate control over the temperature of concrete in the mixer truck is achieved, and the technical problem that the concrete cannot meet the use requirement after being transported to a pouring site is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete mixer trucks, and in particular relates to a temperature monitoring system for a concrete mixer truck. Background Art

[0002] During construction, concrete is typically prepared for pouring and then transported to the construction site via concrete mixer trucks for pouring. However, due to the remote location and environmental constraints, the concrete may not meet construction quality requirements upon arrival.

[0003] Temperature is a key factor affecting concrete quality, particularly during construction in hot or extremely cold weather, where excessively high or low ambient temperatures can easily lead to reduced concrete quality. While existing technologies exist for temperature control in concrete mixer trucks, these technologies suffer from low monitoring accuracy and intelligence, making it difficult to precisely control the actual temperature of concrete. This presents a significant risk of wasting manpower and resources, particularly in applications requiring high concrete quality. Summary of the Invention

[0004] In view of this, the present invention aims to overcome the defects in the prior art and proposes a temperature monitoring system for monitoring the temperature of concrete in a concrete mixer truck. The present invention can monitor the temperature of concrete in a concrete mixer truck more accurately.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] A temperature monitoring system for monitoring and controlling the temperature of concrete in a concrete mixer truck includes at least one temperature monitoring device applied to the concrete mixer truck, a terminal, a heating device, and a cooling device. The temperature monitoring device applied to the concrete mixer truck is used to monitor the temperature information of the concrete in the concrete mixer truck and can be placed in the concrete mixer truck tank and roll freely in the concrete mixer truck tank. The temperature monitoring device applied to the concrete mixer truck is connected to the terminal via wireless communication and transmits concrete temperature information to the terminal. The terminal controls the start and stop of the heating device or the cooling device based on the concrete temperature information. The heating device is used to heat the concrete in the concrete mixer truck, and the cooling device is used to cool the concrete in the concrete mixer truck.

[0007] Preferably, the temperature monitoring device applied to the concrete mixer truck is connected to the terminal in a wireless communication manner via a signal enhancer, and the signal enhancer enhances the signal and sends it to the terminal.

[0008] Preferably, the terminal includes a data processing module, an input module, an alarm module, a display module, and a start-stop module.

[0009] The data processing module processes the concrete temperature information transmitted to the terminal by the temperature monitoring devices on the concrete mixer trucks. It calculates the average value of the concrete temperature information collected by each temperature monitoring device on the concrete mixer trucks during each sampling period as the real-time concrete temperature. By installing at least one temperature monitoring device on the concrete mixer truck and processing the data through the data processing module, more accurate monitoring of concrete temperature is possible.

[0010] The input module includes a threshold setting module and a temperature setting module. The threshold setting module includes an alarm threshold setting module and a temperature control threshold setting module. The alarm threshold setting module is used to set the alarm temperature threshold. It can set multiple alarm temperature thresholds and corresponding alarm methods. By setting multiple alarm temperature thresholds and coordinating them with the alarm module described later, different levels of alarm information can be generated. The temperature control threshold setting module is used to set the deviation threshold of the concrete temperature, which can adjust the accuracy of temperature control. The temperature setting module is used to set the concrete temperature.

[0011] The alarm module issues an alarm based on the real-time concrete temperature and the alarm temperature threshold. When the real-time concrete temperature is within the alarm temperature threshold, no alarm is generated. When the real-time concrete temperature exceeds the corresponding alarm temperature threshold, an alarm of the corresponding level is generated. For example, the alarm threshold setting module sets two alarm temperature thresholds, 30° and 35°, respectively, and the corresponding alarm modes are indicator light alarm and sound alarm. When the concrete temperature is 25°, no alarm is generated. When the concrete temperature is between 30° and 35°, an indicator light alarm is issued. When the concrete temperature exceeds 35°, an sound alarm is issued.

[0012] The display module includes a real-time data mode and a historical data mode. The real-time data mode is used to display in real time the concrete temperature information, real-time concrete temperature, concrete temperature, alarm temperature threshold, deviation threshold, heating device status information, and cooling device status information collected by each temperature monitoring device applied to the concrete mixer truck. The heating device status information includes a start state and a stop state, and the cooling status information includes a start state and a stop state; the historical data mode is used to display the historical values ​​of the concrete temperature information and the historical values ​​of the real-time concrete temperature collected by each temperature monitoring device applied to the concrete mixer truck. Construction personnel can observe the temperature change trend of the concrete temperature information and the real-time concrete temperature collected by each temperature monitoring device applied to the concrete mixer truck in the historical data mode.

[0013] The start-stop module includes automatic control mode and manual control mode. In automatic control mode, the start-stop module determines the concrete temperature threshold range based on the concrete temperature and the deviation threshold. The concrete temperature threshold range is the range obtained by the upper and lower floating deviation thresholds of the concrete temperature. The start-stop module determines whether the real-time concrete temperature is within the concrete temperature threshold range. When it is within the concrete temperature threshold range, neither the heating device nor the cooling device is started. When it is below the concrete temperature threshold range, the heating device is started, and when it is above the concrete temperature threshold range, the cooling device is started. In manual control mode, construction personnel can manually control the start and stop of the heating device or cooling device to heat or cool the concrete.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The present invention proposes a temperature monitoring system that can simultaneously set up multiple temperature monitoring devices applied to concrete mixer trucks and process the temperatures collected by multiple temperature monitoring devices applied to concrete mixer trucks, thereby further improving the accuracy of concrete temperature monitoring; further, the present invention proposes a terminal structure that includes a data processing module, an input module, an alarm module, a display module, and a start-stop module, thereby realizing intelligent control of concrete temperature.

[0016] 2. The temperature monitoring device applied to a concrete mixer truck of the present invention can be placed in the concrete mixer truck tank body and roll freely in the concrete mixer truck tank body, and can randomly monitor the temperature of the concrete, further improving the accuracy of concrete temperature monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 : Schematic diagram of the connections of the various components of the temperature monitoring device.

[0019] Figure 2 : Schematic diagram of the temperature monitoring device housing.

[0020] Figure 3 : Schematic diagram of the connections of the components of the temperature monitoring system.

[0021] Figure 4 : A schematic diagram of the connection of various components of the terminal in one embodiment.

[0022] Figure 5 : Schematic diagram of the tank structure.

[0023] Figure 6 : Figure 6A partial enlarged view of the middle AA.

[0024] Figure 7 : Schematic diagram of cooling device circulation.

[0025] Figure 8 : Schematic diagram of another temperature monitoring device housing. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] Implementation method one:

[0031] like Figure 1-2As shown, a temperature monitoring device 7 for a concrete mixer truck is used to monitor the temperature information of concrete in the concrete mixer truck. The device includes a housing 1, which is an insulating and heat-conducting housing. A chamber 8 is formed inside the housing 1. The chamber 8 is provided with at least one temperature sensor 2, an analog-to-digital conversion module 3, a controller 4, a wireless communication module 5, and a battery 6. The temperature sensor 2 monitors the temperature information of the concrete in the mixer truck through the housing 1. The analog-to-digital conversion module 3 is electrically connected to the temperature sensor 2 and is used to convert the analog quantity of the concrete temperature information into a digital quantity. The controller 4 is electrically connected to the analog-to-digital conversion module 3 and is used to receive the digital quantity of the concrete temperature information from the analog-to-digital conversion module 3. The controller 4 is connected to the external communication via the wireless communication module 5 and transmits the digital quantity of the concrete temperature information to construction personnel. The battery 6 supplies power to the temperature sensor 2, the analog-to-digital conversion module 3, the controller 4, and the wireless communication module 5.

[0032] According to another embodiment, the housing 1 is formed by at least two shells 1 - 1 and 1 - 2 connected in a detachable manner, and a chamber 8 is enclosed between the shells 1 - 1 and 1 - 2.

[0033] According to another embodiment, the structure of each shell 1-1, 1-2 is the same, and the shells 1-1, 1-2 include a connector 1 9 and a connector 2 10. The shells 1-1 and 1-2 are detachably connected through the connector 1 9 and the connector 2 10, that is, the connector 1 9 on the shell 1-1 is used for detachable connection with the connector 2 10 on the adjacent shell 1-2, and the connector 2 10 on the shell 1-1 is used for detachable connection with the connector 1 9 on the adjacent shell 1-2.

[0034] According to another embodiment, the sampling period of the temperature monitoring device 7 is 10 minutes to 60 minutes.

[0035] According to another embodiment, the wireless communication module is Bluetooth or Wi-Fi or 4G or 5G.

[0036] The present invention also provides another technical solution for a temperature monitoring device applied to a concrete mixer truck:

[0037] like Figure 1 、 8As shown, a temperature monitoring device 7 applied to a concrete mixer truck is used to monitor the temperature information of concrete in the concrete mixer truck, including a shell 1, a chamber 8 formed inside the shell 1, at least one through hole 20 is provided on the shell 1, the through hole 20 connects the outside and the chamber 8, a temperature sensor 2 is provided in each through hole 20, and an analog-to-digital conversion module 3, a controller 4, a wireless communication module 5, and a battery 6 are provided in the chamber 8; the analog-to-digital conversion module 3 is electrically connected to the temperature sensor 2, and is used to convert the analog quantity of concrete temperature information into a digital quantity; the controller 4 is electrically connected to the analog-to-digital conversion module 3, and is used to receive the digital quantity of concrete temperature information from the analog-to-digital conversion module 3; the controller 4 is connected to the outside through the wireless communication module 5 and transmits the digital quantity of concrete temperature information to construction personnel; the battery 6 supplies power to the temperature sensor 2, the analog-to-digital conversion module 3, the controller 4, and the wireless communication module 5 respectively.

[0038] According to another embodiment, the temperature sensing element of the temperature sensor 2 is exposed through the through hole and can directly contact the concrete. The electrical connection component of the temperature sensor extends from the other side of the through hole and is placed in the chamber 8 to achieve connection with the components in the chamber 8. The temperature sensor 2 is sealed and connected to the through hole 20 to achieve protection inside the chamber. Specifically, the sealing of the temperature sensor 2 and the through hole 20 can be achieved by common sealing methods in the prior art, such as O-rings and sealants.

[0039] The working process of this device is as follows: during the transportation of concrete, when it is necessary to monitor the temperature of the concrete in the mixer truck, the temperature monitoring device used in the concrete mixer truck is directly placed in the tank of the mixer truck, so that the temperature monitoring device can roll freely in the tank as the mixer truck rotates, and the concrete contacts the shell with a heat transfer function. The temperature sensing part of the temperature sensor contacts the shell, and the temperature of the concrete is monitored through the shell. Then, the temperature information is transmitted to the terminal below through the wireless communication module 5 to realize temperature monitoring. After the concrete is transported to the construction site, the concrete is introduced from the concrete mixer truck into the concrete pump truck, and then poured by the concrete pump truck. When the concrete is introduced into the pump truck, since the size of the monitoring device is larger than the size of the pump truck grate, the monitoring device will be intercepted by the pump truck grate to separate the monitoring device from the concrete, so as to realize the recycling of the monitoring device.

[0040] Implementation method 2:

[0041] like Figure 3-4As shown, the present invention also proposes a temperature monitoring system for monitoring and controlling the temperature of concrete in a concrete mixer truck, including at least one of the above-mentioned temperature monitoring devices 7 applied to a concrete mixer truck, and also including a terminal 11, a heating device 12 and a cooling device 13. The controller 4 is connected to the terminal 11 via a wireless communication module 5 and transmits concrete temperature information to the terminal 11. The terminal 11 controls the start and stop of the heating device 12 or the cooling device 13 according to the concrete temperature information. The heating device 12 is used to heat the concrete in the concrete mixer truck, and the cooling device 13 is used to cool the concrete in the concrete mixer truck.

[0042] Furthermore, the wireless communication module 5 is connected to the terminal 11 via the signal booster 19 , and the signal booster 19 boosts the signal and sends it to the terminal 11 .

[0043] The terminal 11 includes a data processing module 11 - 1 , an input module 11 - 2 , an alarm module 11 - 3 , a display module 11 - 4 , and a start / stop module 11 - 5 .

[0044] Data processing module 11-1 processes the concrete temperature information transmitted to terminal 11 by temperature monitoring devices 7 installed on concrete mixer trucks. It calculates the average value of the concrete temperature information collected by each temperature monitoring device during each sampling period as the real-time concrete temperature. By providing at least one temperature monitoring device 7 installed on a concrete mixer truck and processing the data through data processing module 11-1, more accurate monitoring of concrete temperature is possible.

[0045] Input module 11-2 includes a threshold setting module 11-2-1 and a temperature setting module 11-2-2. Threshold setting module 11-2-1 includes an alarm threshold setting module 11-2-1-1 and a temperature control threshold setting module 11-2-1-2. Alarm threshold setting module 11-2-1-1 is used to set the alarm temperature threshold. Multiple alarm temperature thresholds can be set, along with corresponding alarm methods. By setting multiple alarm temperature thresholds and coordinating them with the alarm module described later, different levels of alarm information can be generated. Temperature control threshold setting module 11-2-1-2 is used to set the deviation threshold for the concrete temperature, adjusting the accuracy of temperature control. The temperature setting module is used to set the concrete temperature.

[0046] The alarm module 11-3 issues an alarm based on the real-time concrete temperature and the alarm temperature threshold. When the real-time concrete temperature is within the alarm temperature threshold, no alarm is generated. When the real-time concrete temperature exceeds the corresponding alarm temperature threshold, an alarm of the corresponding level is generated. For example, the alarm threshold setting module sets two alarm temperature thresholds, 30° and 35°, respectively, with corresponding alarm modes of indicator light alarm and sound alarm. When the concrete temperature is 25°, no alarm is generated. When the concrete temperature is between 30° and 35°, an indicator light alarm is issued. When the concrete temperature exceeds 35°, an sound alarm is issued.

[0047] The display module 11-4 includes a real-time data mode and a historical data mode. The real-time data mode is used to display in real time the concrete temperature information, real-time concrete temperature, concrete temperature, alarm temperature threshold, deviation threshold, heating device status information, and cooling device status information collected by each temperature monitoring device 7 applied to the concrete mixer truck. The heating device status information includes a start state and a stop state, and the cooling status information includes a start state and a stop state; the historical data mode is used to display the historical values ​​of the concrete temperature information and the historical values ​​of the real-time concrete temperature collected by each temperature monitoring device 7 applied to the concrete mixer truck. Construction personnel can observe the temperature change trend of the concrete temperature information and the real-time concrete temperature collected by each temperature monitoring device applied to the concrete mixer truck in the historical data mode.

[0048] Start-stop module 11-5 includes automatic control mode and manual control mode. In automatic control mode, the start-stop module determines the concrete temperature threshold range based on the concrete temperature and the deviation threshold. The concrete temperature threshold range is the range obtained by the upper and lower floating deviation thresholds of the concrete temperature. The start-stop module determines whether the real-time concrete temperature is within the concrete temperature threshold range. When the concrete temperature is within the concrete temperature threshold range, the heating device and the cooling device are not activated. When the concrete temperature is below the concrete temperature threshold range, the heating device is activated, and when the concrete temperature is above the concrete temperature threshold range, the cooling device is activated. In manual control mode, construction personnel can manually control the start and stop of the heating device or cooling device to heat or cool the concrete.

[0049] The working process of the temperature monitoring system is as follows:

[0050] First, the temperature monitoring system parameters are set in input module 11-2. Specifically, the alarm threshold setting module sets multiple alarm temperature thresholds and corresponding alarm modes based on the alarm level requirements; the temperature control threshold setting module sets the concrete temperature deviation threshold; and the temperature setting module sets the concrete temperature. Secondly, while the concrete mixer truck is operating, an alarm for the concrete temperature is generated. Specifically, after the temperature monitoring device 7 applied to the concrete mixer truck detects the concrete temperature information, it transmits the concrete temperature information to the terminal via a signal amplifier. The terminal's data processing module processes the multiple concrete temperature information to obtain the real-time concrete temperature. At this point, the alarm module 11-3 can issue an alarm based on the real-time concrete temperature and the alarm temperature threshold. For example, the alarm threshold setting module sets two alarm temperature thresholds, 30°C and 35°C, with corresponding alarm modes: indicator light alarm and audible alarm. When the concrete temperature is 25°C, no alarm is generated. When the concrete temperature is between 30°C and 35°C, an indicator light alarm is generated. When the concrete temperature exceeds 35°C, an audible alarm is generated. Then, based on the alarm information, the start-stop module controls the activation of the heating or cooling device to achieve concrete temperature control. Specifically, in automatic control mode, the start-stop module determines the concrete temperature threshold range based on the concrete temperature and the deviation threshold. The concrete temperature threshold range is the range obtained by the upper and lower fluctuations of the concrete temperature from the threshold. The start-stop module determines whether the real-time concrete temperature is within the concrete temperature threshold range. If it is within the concrete temperature threshold range, neither the heating nor the cooling device is activated. If it is below the concrete temperature threshold range, the heating device is activated, and if it is above the concrete temperature threshold range, the cooling device is activated. In manual control mode, construction personnel can manually control the start and stop of the heating or cooling device to heat or cool the concrete. In addition, a display device is used to display real-time data or historical data.

[0051] Implementation method three:

[0052] like Figure 5-7 As shown, the present invention also proposes a concrete mixer truck; it includes the above-mentioned temperature monitoring system, and also includes a tank body 14, a heating device 12 and a cooling device 13 are arranged on the tank body 14, and the tank body 14 is respectively provided with an insulation layer 15, a waterproof layer 16, a hollow layer 17 and a heating layer 18 from the outside to the inside.

[0053] The heating device 12 includes a heating wire 12 - 1 , which is electrically connected to a generator. The generator supplies power to the heating wire 12 - 1 to heat the concrete.

[0054] The cooling device 13 includes a cooling circulation box 13-1, one end of the cooling circulation box 13-1 is connected to the water inlet of the water pump 13-2, the water outlet of the water pump 13-2 is connected to the liquid inlet pipe 13-3, and the other end of the cooling circulation box 13-1 is connected to the liquid outlet pipe 13-4. The cooling circulation box 13-1 is arranged on the lower side of the tank body 14, and coolant is provided in the cooling circulation box.

[0055] The heat insulating layer 15 is provided with a heat insulating material 15-1, which reduces the influence of the ambient temperature on the concrete in the tank body 14 on the one hand, and reduces the heat exchange between the cooling device 13 and the heating device 12 and the outside world when they are working, thereby improving efficiency.

[0056] The waterproof layer 16 is provided with a waterproof material 16-1 to prevent rainwater from penetrating into the heating layer 18, thereby preventing the heating wire 12-1 in the heating layer 18 from leaking electricity and endangering the lives of construction workers.

[0057] The hollow layer 17 is a hollow structure, including a liquid inlet 17-1, a liquid outlet 17-2, an air inlet 17-3 and an air outlet 17-4. The liquid inlet 17-1 is connected to the liquid inlet pipe 13-3 through a valve 17-5, the liquid outlet 17-2 is connected to the liquid outlet pipe 13-4 through another valve 17-5, the air inlet 17-3 is provided with a one-way valve 17-6 that can only allow air to enter, and the air outlet 17-4 is provided with a one-way valve 17-6 that can only allow air to exit. When the concrete needs to be cooled, the valve 17-5 is opened and the water pump 13-2 is turned on to circulate the coolant between the hollow layer 17 and the cooling circulation box 13-1 to cool the concrete; when the concrete does not need to be cooled, the water pump 13-2 is turned off. Since the cooling circulation box 13-1 is set on the lower side of the tank body 14, the coolant flows back into the cooling circulation box under the action of gravity, and then the valve 17-5 is closed to make the hollow layer 17 become hollow again, further improving the thermal insulation performance inside and outside the tank body 14.

[0058] The heating layer 18 is provided with the heating wire 12 - 1 of the heating device 12 . When the heating wire is energized, the concrete is heated.

[0059] According to another embodiment, a signal booster 19 is provided on the tank body 14 and includes an external tank antenna, an amplifier, and an internal tank antenna. The internal tank antenna is provided inside the tank body 14, while the external tank antenna is provided outside the tank body. The internal tank antenna receives the signal from the wireless communication module 5, and the amplifier amplifies the signal and transmits the amplified signal to the terminal 11 via the external tank antenna. This embodiment further ensures effective signal transmission and avoids the influence of the tank body on signal transmission.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temperature monitoring system, characterized in that: A device for monitoring and controlling the temperature of concrete in a concrete mixer truck includes at least one temperature monitoring device applied to the concrete mixer truck, a terminal, a heating device, and a cooling device. The temperature monitoring device applied to the concrete mixer truck is used to monitor the temperature information of the concrete in the concrete mixer truck and can be placed in the concrete mixer truck tank and roll freely in the concrete mixer truck tank. The temperature monitoring device applied to the concrete mixer truck is connected to the terminal via wireless communication and transmits the concrete temperature information to the terminal. The terminal controls the start and stop of the heating device or the cooling device based on the concrete temperature information. The heating device is used to heat the concrete in the concrete mixer truck, and the cooling device is used to cool the concrete in the concrete mixer truck.

2. A temperature monitoring system according to claim 1, characterized in that: The terminal further includes a data processing module, which is used to process the concrete temperature information and calculate an average value of each piece of concrete temperature information in each sampling period as the real-time temperature of the concrete.

3. A temperature monitoring system according to claim 2, characterized in that: The terminal also includes an input module, which includes a threshold setting module and a temperature setting module. The threshold setting module includes an alarm threshold setting module and a temperature control threshold setting module. The alarm threshold setting module is used to set the alarm temperature threshold, and can set multiple levels of alarm temperature thresholds and alarm modes corresponding to the corresponding levels. The temperature control threshold setting module is used to set the deviation threshold of the concrete temperature, and the temperature setting module is used to set the concrete temperature.

4. A temperature monitoring system according to claim 3, characterized in that: The terminal also includes an alarm module, which issues an alarm based on the real-time temperature of the concrete and the alarm temperature threshold. When the real-time temperature of the concrete is within the alarm temperature threshold, no alarm information is generated. When the real-time temperature of the concrete exceeds the alarm temperature threshold of the corresponding level, an alarm information of the corresponding level is generated.

5. A temperature monitoring system according to claim 4, characterized in that: The terminal also includes a display module, which includes a real-time data mode and a historical data mode. The real-time data mode is used to display each of the concrete temperature information, the real-time concrete temperature, the concrete temperature, the alarm temperature threshold, the deviation threshold, the heating device status information, and the cooling device status information in real time, wherein the heating device status information includes a start state and a stop state, and the cooling status information includes a start state and a stop state; the historical data mode is used to display the historical value of each of the concrete temperature information and the historical value of the real-time concrete temperature.

6. A temperature monitoring system according to claim 5, characterized in that: The terminal further includes a start-stop module, which includes an automatic control mode and a manual control mode.

7. A temperature monitoring system according to claim 6, characterized in that: In the automatic control mode, the start-stop module derives a concrete temperature threshold range based on the concrete temperature and the deviation threshold, wherein the concrete temperature threshold range is a range obtained by the concrete temperature fluctuating above and below the deviation threshold. The start-stop module determines whether the real-time concrete temperature is within the concrete temperature threshold range. When the concrete temperature is within the concrete temperature threshold range, neither the heating device nor the cooling device is started. When the temperature is lower than the concrete temperature threshold range, the heating device is started, and when the temperature is higher than the concrete temperature threshold range, the cooling device is started. In the manual control mode, the start and stop of the heating device or the cooling device are manually controlled.

8. The temperature monitoring system according to claim 1, wherein: The temperature monitoring device applied to the concrete mixer truck is connected to the terminal in a wireless communication manner via a signal enhancer.

9. A temperature monitoring system as claimed in claim 1, characterized in that: The temperature monitoring device for a concrete mixer truck includes a housing, which is an insulating and heat-conductive housing. The housing defines a chamber within the housing. The chamber houses at least one temperature sensor, an analog-to-digital conversion module, a controller, a wireless communication module, and a battery. The temperature sensor monitors concrete temperature information in the concrete mixer truck through the housing. The analog-to-digital conversion module is electrically connected to the temperature sensor and configured to convert an analog quantity of the concrete temperature information into a digital quantity. The controller is electrically connected to the analog-to-digital conversion module and configured to receive the digital quantity of the concrete temperature information from the analog-to-digital conversion module. The controller is connected to an external communication interface via the wireless communication module and transmits the digital quantity of the concrete temperature information. The battery provides power to the temperature sensor, the analog-to-digital conversion module, the controller, and the wireless communication module.

10. A concrete mixer truck comprising the temperature monitoring system according to any one of claims 1 to 9.

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