Intelligent monitoring device and method for temperature information of whole process of mass concrete

Abstract

The invention relates to an intelligent monitoring device and method for temperature information of mass concrete in the whole process, and the device comprises a plurality of imitation aggregate temperature collectors which are used as aggregates to be put into concrete in a concrete mixing stage and are used for collecting the temperature information of the concrete; the plurality of autonomous acquisition base stations are arranged near a mixing machine outlet, a transportation path and a concrete bin and are used for wirelessly receiving the temperature information; and the monitoring terminal is used for forming whole-process concrete temperature homologous acquisition and recording of a mixing machine outlet, a transportation path, warehousing temperature and pouring temperature according to the temperature information and the corresponding acquisition position and the concrete warehouse number. According to the invention, homologous temperature measurement in the whole process of concrete mixing-transportation-pouring can be realized, so that accurate data reference can be provided for temperature control construction of concrete, and source control of the temperature control construction of concrete is realized.

Description

Technical Field

[0001] This invention relates to the field of concrete temperature monitoring technology, specifically to an intelligent tracking and monitoring device and method for the same source temperature information of aggregates, concrete mixing, transportation, placement and pouring during the construction and pouring of large-volume concrete. Background Technology

[0002] To ensure high-quality concrete dam pouring, temperature control standards and measures are crucial in the construction process. Among these, temperature control at the concrete outlet, temperature change rate control during transportation, and pouring temperature control are the starting points of temperature control and important aspects of the entire concrete dam temperature control construction.

[0003] Currently, the control of inlet temperature, temperature change rate during transportation, and pouring temperature is based on average temperature assessment. This involves random sampling of inlet temperature and pouring temperature data, manually collected and wirelessly transmitted to the backend for averaging analysis to calculate the transportation temperature change rate. This results in an unclear understanding of the temperature evolution pattern throughout the entire process from inlet to placement to pouring. After concrete pouring, this puts significant pressure on subsequent water cooling and temperature control measures, especially during extreme temperature periods throughout the year. Typically, on-site temperature control measures are implemented according to average design requirements. For example, in spring and autumn pouring, the average concept is misleading regarding the fluctuating temperatures of the inlet and pouring, making subsequent temperature control after placement difficult. Alternatively, in extreme summer temperatures, aggregate air cooling and ice mixing are still performed according to average requirements, resulting in excessive inlet temperature. Or, in low winter temperatures, heating water is used according to average design requirements, causing the concrete temperature to fluctuate wildly upon arrival at the placement surface. Consequently, temperature control measures throughout the concrete mixing, transportation, and pouring process cannot be accurately implemented. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent temperature monitoring device and method for the entire process of large-volume concrete, aiming to solve the problem of simultaneous temperature measurement of concrete raw materials and throughout the entire process of concrete mixing, transportation and pouring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A smart monitoring device for temperature information throughout the entire process of large-volume concrete, the device comprising:

[0007] Multiple simulated aggregate temperature acquisition devices, each with an independent number, are used to collect the temperature information of concrete as aggregates during the concrete mixing stage.

[0008] Multiple autonomous data acquisition base stations, each with an independent number, are deployed near the mixing plant outlet, transportation path, and concrete silo to wirelessly receive temperature information collected by multiple simulated aggregate temperature acquisition devices and their corresponding independent numbers.

[0009] The monitoring terminal is used to collect and record the concrete temperature throughout the entire process, including the mixing plant outlet, transportation path, inlet temperature, and pouring temperature, based on the temperature information and the corresponding collection location and time.

[0010] The monitoring terminal determines the acquisition location based on the independent number of the autonomous acquisition base station corresponding to the temperature information, and determines the concrete slab number based on the independent number of the simulated aggregate temperature acquisition device corresponding to the temperature information.

[0011] Preferably, the simulated aggregate temperature acquisition device includes a high thermal conductivity stainless steel shell, the bottom of which is thickened and has a through hole. A high thermal conductivity copper body is embedded in the through hole, one end of which is exposed outside the high thermal conductivity stainless steel shell, and the other end abuts against a thermistor module. The thermistor module is connected to a circuit board, which is connected to a wireless module and a power module. The wireless module is connected to multiple antennas, which extend toward the top of the high thermal conductivity stainless steel shell.

[0012] The high thermal conductivity stainless steel shell has an opening at the top, which is sealed by a high-strength fiber plexiglass.

[0013] Preferably, the simulated aggregate temperature sensor is spherical in shape, and the thickness of the thickened portion is 2 / 3 of the radius of the high thermal conductivity stainless steel shell.

[0014] Preferably, the autonomous data acquisition base station includes a Loral wireless signal acquisition module, and the simulated aggregate temperature acquisition device and the Loral wireless signal acquisition module are wirelessly encrypted and connected.

[0015] Preferably, within the working coverage area of ​​the autonomous data acquisition base station, the simulated aggregate temperature acquisition device can trigger the data transmission function.

[0016] Preferably, the autonomous data acquisition base station has a data reception frequency setting function.

[0017] A method for using the intelligent temperature monitoring device for the entire process of large-volume concrete as described above, the method comprising:

[0018] Autonomous data collection base stations are deployed near the mixing plant outlet, transportation route, and concrete silo.

[0019] During the mixing stage, the multiple simulated aggregate temperature acquisition devices are introduced into the mixer;

[0020] During the mixing, transportation, and placement of concrete, when the simulated aggregate temperature collector is within the working coverage area of ​​the autonomous acquisition base station, the simulated aggregate temperature collector will send out its unique number and the collected temperature information.

[0021] The corresponding autonomous acquisition base station receives the unique number and corresponding temperature information of the simulated aggregate temperature acquisition device at a set frequency;

[0022] The autonomous data acquisition base station sends its own unique number, as well as the unique number and corresponding temperature information of the received simulated aggregate temperature acquisition device, to the monitoring terminal.

[0023] The monitoring terminal determines the location and concrete slab number of the concrete based on the independent number of the autonomous acquisition base station and the imitation aggregate temperature acquisition device corresponding to the temperature information, and collects and records the concrete temperature from the same source throughout the entire process, including the mixing machine outlet, transportation path, slab entry temperature and pouring temperature.

[0024] Preferably, the temperature information recorded when the mixer is opened is used as the concrete temperature at the mixer outlet.

[0025] The temperature information of the simulated aggregate temperature collector, which is the first data collected by the nearest autonomous data acquisition base station to the concrete slab, is used as the concrete's entry temperature into the slab.

[0026] From the moment the concrete silo temperature is acquired, the temperature information of the simulated aggregate temperature collector monitored by the nearest autonomous acquisition base station of the concrete silo after the first time t is taken as the concrete pouring temperature.

[0027] Preferably, the first time t is calculated as follows:

[0028] t = g / s

[0029] g = V / n

[0030] V = L·m·h

[0031] Where g is the amount of concrete poured in a single layer, s is the concrete pouring rate, V is the volume of the concrete silo, n is the number of layers in the concrete silo, and L, m, and h are the length, width, and height of the concrete silo, respectively.

[0032] Preferably, the temperature change during transportation is obtained based on the concrete temperature at the mixer outlet and the concrete temperature upon entering the formwork.

[0033] The advantages of this invention are:

[0034] The present invention provides an intelligent temperature monitoring device and method for the entire process of large-volume concrete. The temperature acquisition device for multiple aggregates participates in the mixing, transportation and pouring processes, realizing the same source temperature measurement throughout the entire process of concrete mixing, transportation and pouring. Therefore, it can accurately measure the temperature evolution law of the entire process, thereby providing accurate data reference for the temperature control construction of concrete and realizing the source control of concrete temperature control construction.

[0035] Furthermore, this invention eliminates the need for the traditional method of installing temperature probes inside the concrete silo and extending them out through cables, thus truly achieving wireless temperature monitoring of the concrete from the start of pouring to the hardening process. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the mechanism of an intelligent temperature information monitoring device for the entire process of large-volume concrete according to the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of a simulated aggregate temperature acquisition device according to the present invention;

[0038] Figure 3 This is a schematic diagram illustrating the main steps of using an intelligent monitoring device for temperature information throughout the concrete process according to the present invention. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] See Figure 1 , Figure 1 This is a schematic diagram of a device for intelligent monitoring of temperature information throughout the entire process of large-volume concrete. The device, as described in this embodiment, includes: multiple simulated aggregate temperature acquisition devices 1, multiple autonomous acquisition base stations 2, and a monitoring terminal 3.

[0041] Multiple simulated aggregate temperature acquisition devices 1, each with an independent number, are used to collect the temperature information of concrete as aggregates during the concrete mixing stage.

[0042] Multiple autonomous data acquisition base stations 2, each with an independent number, are deployed near the mixing plant outlet, transportation path, and concrete silo to wirelessly receive temperature information collected by multiple simulated aggregate temperature acquisition devices 1 and their corresponding independent numbers.

[0043] Monitoring terminal 3 is used to collect and record the concrete temperature throughout the entire process, including the mixing plant outlet, transportation path, inlet temperature, and pouring temperature, based on temperature information, the corresponding acquisition location, and the concrete slab number. Specifically, monitoring terminal 3 determines the acquisition location based on the independent serial numbers of the simulated aggregate temperature acquisition device 1 and the autonomous acquisition base station 2, and determines the concrete slab number based on the independent serial number of the simulated aggregate temperature acquisition device 1 corresponding to the temperature information.

[0044] See Figure 2 The simulated aggregate temperature sensor 1 includes a high thermal conductivity stainless steel housing 11. The bottom of the high thermal conductivity stainless steel housing 11 has a thickened portion 12 with a through hole. A high thermal conductivity copper body 13 is embedded in the through hole. One end of the high thermal conductivity copper body 13 is exposed outside the high thermal conductivity stainless steel housing 11, and the other end abuts against a thermistor module 14. The high thermal conductivity copper body 13 connects to the thermistor module 14, transmitting the sensed temperature to the thermistor module 14 to ensure the accuracy of temperature sensing. The thermistor module 14 is connected to a circuit integrated board 15, which converts the sensed temperature value into a digital signal. The circuit integrated board 15 connects to a wireless module 16 and a power module 17. The wireless module 16 connects to multiple antennas 18, which extend towards the top of the high thermal conductivity stainless steel housing 11. The top of the high thermal conductivity stainless steel housing 11 has an opening, which is sealed by a high-strength fiber optic acrylic glass 19. Thus, antenna 18 faces the high-strength fiber optic glass 19, reducing interference from the metal casing or other highly shielded materials. The simulated aggregate temperature collector 1 is spherical in shape, with the thickness of the thickened part 12 being 2 / 3 the radius of the high thermal conductivity stainless steel casing 11. This ensures that the thermally conductive copper body faces downwards and the signal transmitting antenna 18 faces upwards during the mixing plant outlet-entry-pouring process, further guaranteeing interference-free wireless transmission of the measured temperature information. The wireless module 16 of the simulated aggregate temperature collector 1 uses a low-frequency band for wireless signal transmission. Because concrete has a high shielding effect, low-frequency signals are required for temperature signal transmission in thin-layer concrete.

[0045] Because concrete itself has a strong signal shielding effect, in order to effectively receive the temperature signal emitted by the simulated aggregate temperature collector 1, it is necessary to deploy autonomous acquisition base stations 2 near the mixing plant outlet, the transportation path, and the concrete silo, and provide them with continuous power. The autonomous acquisition base station 2 includes a LoAL wireless signal acquisition module, and the simulated aggregate temperature collector 1 and the LoAL wireless signal acquisition module are wirelessly encrypted and interconnected. Within the working coverage area of ​​the autonomous acquisition base station 2, the simulated aggregate temperature collector 1 can trigger its data transmission function. The autonomous acquisition base station 2 has a data reception frequency setting function.

[0046] The simulated aggregate temperature collector 1 is fed into the mixer during the mixing stage and then transported by truck to the concrete silo for pouring. During this process, autonomous acquisition base stations 2, deployed at the mixer outlet, along the transport path, and near the concrete silo, collect temperature information collected by the simulated aggregate temperature collector 1 and its corresponding unique identifier at a predetermined frequency. This information, combined with the unique identifier of the autonomous acquisition base station 2, is then transmitted to the monitoring terminal 3. Because the location of the autonomous acquisition base station 2 is fixed, the monitoring terminal 3 can determine the location of the temperature information collection based on its unique identifier. Furthermore, the silo number of each transport truck's pour is recorded, so the monitoring terminal 3 can determine the silo number based on the unique identifier of the simulated aggregate temperature collector 4. Based on this, a unified source for collecting and recording concrete temperature throughout the entire process—from the mixer outlet and transport path to the silo temperature and the pouring temperature—can be established.

[0047] See Figure 3 , Figure 3 This is a schematic diagram illustrating the main steps of using an intelligent monitoring device for temperature information throughout the concrete process. This embodiment also provides a method for using the intelligent monitoring device for temperature information throughout the concrete process, including:

[0048] Step S1: Deploy autonomous data acquisition base stations near the mixing plant outlet, transportation path, and concrete silo. Specifically, the deployment locations should ensure that the autonomous data acquisition base stations can receive signals from the simulated aggregate temperature acquisition devices at the corresponding locations.

[0049] Step S2: During the mixing stage, multiple simulated aggregate temperature sensors are added to the mixer. That is, the simulated aggregate temperature sensors are added to the mixer as aggregate during mixing.

[0050] Step S3: During the mixing, transportation, and placement of concrete, when the simulated aggregate temperature collector is within the working coverage area of ​​the autonomous acquisition base station, it transmits its unique identification number and the collected temperature information. Specifically, the autonomous acquisition base stations near the mixing plant outlet, along the transportation path, and near the concrete slab receive the wireless signals transmitted by the simulated aggregate temperature collector within their respective working coverage areas.

[0051] Step S4: The corresponding autonomous acquisition base station receives the unique number and corresponding temperature information of the simulated aggregate temperature acquisition device at the set frequency.

[0052] Step S5: The autonomous data acquisition base station sends its own unique number, as well as the unique number and corresponding temperature information of the received simulated aggregate temperature acquisition device, to the monitoring terminal.

[0053] Step S6: The monitoring terminal determines the location of the concrete and the concrete slab number based on the independent number of the autonomous acquisition base station and the simulated aggregate temperature acquisition device corresponding to the temperature information, and forms a complete process of concrete temperature homogeneous acquisition and recording of the mixing machine outlet, transportation path, slab entry temperature and pouring temperature.

[0054] Because the locations of the autonomous data acquisition base stations are fixed, the monitoring terminal can determine the corresponding temperature information acquisition location based on the unique number of each base station. Furthermore, the silo number of each concrete slab poured by each transport truck is recorded, so the monitoring terminal can determine the corresponding concrete silo number based on the unique number of the simulated aggregate temperature acquisition. Based on this, a unified data acquisition and recording system for concrete temperature throughout the entire process—from the mixing plant outlet and transport route to the silo temperature and the pouring temperature—can be established.

[0055] Specifically, the temperature recorded when the mixing plant opens is used as the concrete temperature at the mixing plant outlet. The temperature information from the simulated aggregate temperature sensor, first collected by the nearest autonomous data acquisition station to the concrete silo, is used as the concrete's inlet temperature. Based on the concrete temperature at the mixing plant outlet and the concrete's inlet temperature, temperature changes during transportation are obtained.

[0056] From the moment the concrete silo temperature is acquired, the temperature information of the simulated aggregate temperature collector monitored by the nearest autonomous acquisition base station of the concrete silo after the first time t is taken as the concrete pouring temperature.

[0057] The calculation method for the first time step t is as follows:

[0058] t = g / s

[0059] g = V / n

[0060] V = L·m·h

[0061] Where g is the concrete volume of a single concrete layer, s is the concrete pouring rate, V is the volume of the concrete chamber, n is the number of concrete layers in the concrete chamber, and L, m, and h are the length, width, and height of the concrete chamber, respectively. It should be noted that the length L, width m, height h, number of concrete layers n, and concrete pouring rate s can all be obtained from pre-determined opening records.

[0062] The above description describes the preferred embodiments of the present invention and the technical principles applied thereto. For those skilled in the art, any obvious changes such as equivalent transformations or simple substitutions based on the technical solutions of the present invention, without departing from the spirit and scope of the present invention, shall fall within the protection scope of the present invention.

Claims

1. A smart monitoring device for temperature information throughout the entire process of large-volume concrete, characterized in that, The device includes: Multiple simulated aggregate temperature acquisition devices, each with an independent number, are used to collect the temperature information of concrete as aggregates during the concrete mixing stage. Multiple autonomous data acquisition base stations, each with an independent number, are deployed near the mixing plant outlet, transportation path, and concrete silo to wirelessly receive temperature information collected by multiple simulated aggregate temperature acquisition devices and their corresponding independent numbers. The monitoring terminal is used to collect and record the concrete temperature throughout the entire process, including the mixing plant outlet, transportation path, inlet temperature, and pouring temperature, based on the temperature information, the corresponding collection location, and the concrete slab number. The monitoring terminal determines the acquisition location based on the independent number of the autonomous acquisition base station corresponding to the temperature information, and determines the concrete slab number based on the independent number of the simulated aggregate temperature acquisition device corresponding to the temperature information.

2. The intelligent temperature monitoring device for the entire process of large-volume concrete as described in claim 1, characterized in that, The simulated aggregate temperature acquisition device includes a high thermal conductivity stainless steel shell. The bottom of the high thermal conductivity stainless steel shell is provided with a thickened part. The thickened part has a through hole, and a high thermal conductivity copper body is embedded in the through hole. One end of the high thermal conductivity copper body is exposed outside the high thermal conductivity stainless steel shell, and the other end abuts against a thermistor module. The thermistor module is connected to a circuit integrated board. The circuit integrated board is connected to a wireless module and a power module. The wireless module is connected to multiple antennas. The multiple antennas extend toward the top of the high thermal conductivity stainless steel shell. The high thermal conductivity stainless steel shell has an opening at the top, which is sealed by a high-strength fiber plexiglass.

3. The intelligent temperature monitoring device for the entire process of large-volume concrete as described in claim 2, characterized in that, The simulated aggregate temperature sensor is spherical in shape, and the thickness of the thickened part is 2 / 3 of the radius of the high thermal conductivity stainless steel shell.

4. The intelligent temperature monitoring device for the entire process of large-volume concrete as described in claim 1, characterized in that, The autonomous data acquisition base station includes a Loral wireless signal acquisition module, and the simulated aggregate temperature acquisition device and the Loral wireless signal acquisition module are wirelessly encrypted and connected.

5. The intelligent temperature monitoring device for the entire process of large-volume concrete as described in claim 4, characterized in that, Within the operating coverage area of ​​the autonomous data acquisition base station, the simulated aggregate temperature acquisition device can trigger the data transmission function.

6. The intelligent temperature monitoring device for the entire process of large-volume concrete as described in claim 5, characterized in that, The autonomous data acquisition base station has a data reception frequency setting function.

7. A method of using the intelligent temperature information monitoring device for the entire process of large-volume concrete as described in any one of claims 1 to 6, characterized in that, The method includes: The autonomous data acquisition base stations are deployed near the mixing plant outlet, the transportation route, and the concrete silo. During the mixing stage, the multiple simulated aggregate temperature acquisition devices are introduced into the mixer; During the mixing, transportation, and placement of concrete, when the simulated aggregate temperature collector is within the working coverage area of ​​the autonomous acquisition base station, the simulated aggregate temperature collector will send out its unique number and the collected temperature information. The corresponding autonomous acquisition base station receives the unique number and corresponding temperature information of the simulated aggregate temperature acquisition device at a set frequency; The autonomous data acquisition base station sends its own unique number, as well as the unique number and corresponding temperature information of the received simulated aggregate temperature acquisition device, to the monitoring terminal. The monitoring terminal determines the location and concrete slab number of the concrete based on the independent number of the autonomous acquisition base station and the imitation aggregate temperature acquisition device corresponding to the temperature information, and collects and records the concrete temperature from the same source throughout the entire process, including the mixing machine outlet, transportation path, slab entry temperature and pouring temperature.

8. The method of use as described in claim 7, characterized in that, The temperature recorded when the mixing plant is opened is used as the concrete temperature at the mixing plant outlet. The temperature information of the simulated aggregate temperature collector, which is the first data collected by the nearest autonomous data acquisition base station to the concrete slab, is used as the concrete's entry temperature into the slab. From the moment the concrete silo temperature is acquired, the temperature information of the simulated aggregate temperature collector monitored by the nearest autonomous acquisition base station of the concrete silo after the first time t is taken as the concrete pouring temperature.

9. The method of use as described in claim 8, characterized in that, The first time t is calculated as follows: t = g / s g = V / n V = L·m·h Where g is the amount of concrete poured in a single layer, s is the concrete pouring rate, V is the volume of the concrete silo, n is the number of layers in the concrete silo, and L, m, and h are the length, width, and height of the concrete silo, respectively.

10. The method of use as described in claim 8, characterized in that, The temperature changes during transportation are obtained based on the concrete temperature at the mixer outlet and the concrete temperature upon entering the formwork.

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