CN111553585A - System and method for monitoring mixing quality of core wall asphalt mixture in real time - Google Patents
System and method for monitoring mixing quality of core wall asphalt mixture in real time Download PDFInfo
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Abstract
The invention discloses a core wall asphalt mixture mixing quality real-time monitoring system and a method, wherein the system comprises a mixing building data acquisition device, a microclimate information acquisition device, an outlet temperature acquisition device, a database, an application server, a monitoring client and a field alarm device; the mixing building data acquisition device comprises an integrated controller and a first data wireless transmitting device; the microclimate information acquisition device comprises a permanent weather station, an integrated controller and a second data wireless transmission device; the outlet temperature acquisition device comprises a thermocouple temperature sensor, an integrated controller and a third data wireless transmission device; the database and the application server are responsible for receiving and storing data sent by the mixing building data acquisition device, the microclimate information acquisition device and the outlet temperature acquisition device; the monitoring client consists of a computer which can be connected with an Internet network on a construction site; the on-site alarm device receives various alarm short message information from the database and the application server in real time through the communication network.
Description
Technical Field
The invention belongs to the field of core wall asphalt mixture mixing quality control, and particularly relates to a real-time core wall asphalt mixture mixing quality (including mix proportion and outlet temperature) monitoring system considering dam region microclimate monitoring.
Background
The mixing quality of the asphalt mixture is the key for ensuring the construction quality of the asphalt concrete core wall, and is influenced by a plurality of factors such as the mixing proportion, the outlet temperature and the like, for example, when the content of asphalt is insufficient or the using amounts of aggregate and mineral powder have large deviation, the asphalt mixture cannot be rolled compactly; when the temperature of the outlet of the mixer is higher, the mixing temperature of the asphalt mixture is over high, the asphalt mixture is seriously aged in the mixing process, and the like. Therefore, in order to improve the blending quality of the asphalt mixture, the mixing ratio and the outlet temperature in the blending process need to be controlled.
In addition, because the temperature can reduce when the bituminous mixture transports to the job site, consequently the export of bituminous mixture temperature still directly influences subsequent temperature of warehousing. The temperature loss of the asphalt mixture in the transportation process is influenced by the microclimate factors of the dam area, for example, when the asphalt mixture is transported to a construction site under the conditions of low temperature and high humidity, the temperature loss of the mixture is inevitably large, and the warehousing temperature is possibly lower than a control value in serious conditions, so that the asphalt mixture is treated as waste, and the economic cost is lost. Therefore, in order to enable the warehousing temperature of the asphalt mixture to meet the requirement, the outlet temperature of the asphalt mixture needs to be controlled. The conventional method for controlling the temperature of the outlet of the asphalt mixture is to set a temperature value in advance as a reference temperature of a future batch according to engineering experience. However, the method has certain limitation, and the set temperature is not necessarily suitable for the current environment due to the variable environment of the construction site. Therefore, a relation model of the transportation temperature loss of the asphalt mixture and the microclimate factor needs to be established, so that the outlet temperature of the mixture can be dynamically adjusted according to different field environments and the control requirement of the warehousing temperature.
Meanwhile, on-site environmental factors such as microclimate factors not only affect the outlet temperature of the asphalt mixture, but also affect the construction period of the asphalt core wall, and according to the regulations in the specifications of the hydraulic asphalt concrete construction regulations (SL 514-. Therefore, real-time monitoring of the dam district microclimate is also necessary.
In summary, it is necessary to develop a core wall asphalt mixture blending quality real-time monitoring system considering dam region microclimate real-time monitoring, which is used for monitoring the mix proportion and outlet temperature of asphalt mixture in the blending process in real time, monitoring the dam region microclimate in real time, and establishing a relation model between the transportation temperature loss of asphalt mixture and on-site variable environmental factors to dynamically adjust the outlet temperature, so as to ensure the quality of core wall asphalt mixture.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a system and a method for monitoring the mixing quality of a core wall asphalt mixture in real time.
The purpose of the invention is realized by the following technical scheme:
a core wall asphalt mixture mixing quality real-time monitoring system comprises a mixing building data acquisition device, a microclimate information acquisition device, an outlet temperature acquisition device, a database, an application server, a monitoring client and a field alarm device;
the mixing building data acquisition device comprises an integrated controller and a first data wireless transmitting device; the mixing building data acquisition device is installed in a control room of an asphalt mixing station, and the warehouse-out time and the mix proportion data of each set of generated asphalt mixture are transmitted to a database and an application server in real time through a first data wireless transmitting device;
the microclimate information acquisition device comprises a permanent weather station, an integrated controller and a second data wireless transmission device; a permanent weather station is installed on a management house roof near a dam area, the temperature, the humidity, the wind speed, the rainfall and the illumination intensity of the dam area are collected once at fixed time intervals, and data are sent to a database and an application server through a second data wireless sending device;
the outlet temperature acquisition device comprises a thermocouple temperature sensor, an integrated controller and a third data wireless transmission device; a thermocouple sensor is arranged in a compartment of the asphalt mixture transport vehicle to acquire the initial transport temperature of each asphalt mixture as the outlet temperature of the asphalt mixture, and temperature data are sent to a database and an application server through a third data wireless sending device;
the database and the application server are responsible for receiving and storing data sent by the mixing building data acquisition device, the microclimate information acquisition device and the outlet temperature acquisition device, recording dynamically adjusted process information (including alarm information), and calculating a current outlet temperature recommended value according to the outlet temperature control model;
the monitoring client is composed of a computer which can be connected with an Internet network on a construction site, before monitoring is started, a mix proportion control standard, a microclimate control standard and an outlet temperature control model coefficient are set through the monitoring client, and then the set mix proportion control standard, the microclimate control standard and the outlet temperature control model coefficient are stored in a database and a database of an application server through the Internet network for subsequent application; in the monitoring process, the monitoring client displays the mix proportion information, the mix proportion pie chart, the outlet temperature of each asphalt mixture, the outlet temperature change curve, the current microclimate information and the change curve of microclimate data in real time; a user can inquire historical monitoring data and output an inquiry result through the monitoring client; meanwhile, the monitoring client receives the mixing ratio non-standard alarm information, the outlet temperature non-standard alarm information and the shutdown suggestion alarm information which are sent by the database and the application server so as to prompt field operators to take quality control measures or shutdown measures in time to ensure the mixing quality of the asphalt mixture;
the field alarm device receives various alarm short message information sent by the database and the application server in real time through a communication network; when the field operator is inconvenient to receive the alarm information of the monitoring client, corresponding quality control measures or asphalt core shutdown measures can be taken in time through the alarm short message received by the handheld field alarm device.
Furthermore, the on-site alarm device is composed of a Personal Digital Assistant, a PDA palm computer or a mobile phone.
Further, the expression of the outlet temperature control model is as follows:
T＝Tc0-Tg
in the formula, Tc0A suggested value representing an outlet temperature of the asphalt mix; t represents the difference between the temperature of the outlet of the asphalt mixture and the atmospheric temperature, TgRepresents an air temperature;
represents atmospheric humidity; v represents wind speed; i represents rainfall; e represents the illumination intensity; t isr0Representing a warehousing temperature control value; a. b, c, d, e represent model coefficients, i1、i2、i3、i4、i5Respectively representing the number of model coefficients, n1、n2、n3、n4、n5Respectively representing the maximum value of the number of each model coefficient and representing the model error;
the formula (1) is obtained by fitting the actually measured data of the construction site through regression analysis,analysis of the influencing factors (air temperature T) by calculating the correlation coefficientgAtmospheric humidity
And determining specific influence factors in the actual engineering outlet temperature control model according to the correlation between the wind speed v, the rainfall I and the illumination intensity E) and the warehousing temperature.
Further, the database and the application server transmit the temperature T in real time according to the microclimate information acquisition devicegAtmospheric humidity
Wind speed v, rainfall I and illumination intensity E, and calculating the current outlet temperature suggested value Tc0And the recommended outlet temperature value Tc0Updating every 1 min; the database and the application server real-timely measure the outlet temperature TcAnd the recommended value T of the outlet temperaturec0In contrast, if Tc≥Tc0If the measured outlet temperature value is higher than the outlet temperature suggested value, the control requirement is met; when T isc＜Tc0When the actual outlet temperature value is lower than the recommended value, the real-time monitoring system sends alarm information that the outlet temperature does not reach the standard to the monitoring client through the Internet network, or sends alarm short message information to the construction site alarm device through the communication network through the GSM communication device connected with the database and the application server.
Further, the database and the application server also judge whether the current monitoring data is in a qualified standard range in real time according to a mix proportion control standard and a microclimate monitoring standard input by the monitoring client, if the actually measured mix proportion data exceeds the control standard, the system sends alarm information that the mix proportion does not reach the standard to the monitoring client through an Internet network, or sends an alarm short message to a construction site alarm device through a communication network through a GSM communication device connected with the database and the application server; if the microclimate data exceeds the control standard, the system sends alarm information of asphalt core shutdown suggestions to the monitoring client through the Internet network, or sends alarm short messages to a construction site alarm device through the communication network through a GSM communication device connected with the database and the application server.
The invention provides another technical scheme as follows, and the method for monitoring the mixing quality of the core wall asphalt mixture in real time comprises the following steps:
(1) logging in a monitoring client;
(2) setting a microclimate information monitoring standard and a mix proportion control standard;
(3) setting an outlet temperature control model coefficient;
(4) the monitoring client starts remote real-time monitoring;
(5) collecting the mix proportion of each set of asphalt mixture, the outlet temperature and microclimate data of each set of asphalt mixture and sending the data in real time;
(6) the database and the application server receive and store the data;
(7) the database and the application server calculate a recommended value of the temperature of the machine port;
(8) the database and the application server analyze and judge whether each monitoring data reaches the standard;
(9) the monitoring client sends alarm information when the monitoring data does not reach the standard;
(10) making corresponding control measures on site;
(11) and storing the monitoring result and the dynamic adjustment process message (including alarm information and the like), and providing subsequent information query and quality tracing application.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) the microclimate of the synchronous dam area is monitored in real time for 24 hours all day, the mixing proportion and the outlet temperature of each asphalt mixture in the mixing process are monitored in real time, and under the condition that field operators are assisted to master the real production quality of the asphalt mixtures, the alarm prompt for abnormal weather is realized at the same time, so that the method is beneficial for the constructors to avoid inappropriate construction time intervals in time, and the defects that the two in the prior art are independently used, the information is isolated, and the field construction management is not facilitated are overcome;
(2) through the asphalt mixture outlet temperature control model, the proper outlet temperature can be calculated according to the current real-time monitored climate condition, so that a quantitative analysis means is provided for the dynamic adjustment of the outlet temperature of the asphalt mixture, the condition that the field temperature of the asphalt mixture transported to a dam area does not reach the standard is avoided, and the defect that the outlet temperature cannot be accurately adjusted according to the real-time climate condition in the prior art is overcome;
(3) the automatic integration and warehousing filing of the mixing quality data, the microclimate data, the dynamic adjustment process information of the outlet temperature and the like is realized, a basis is provided for subsequent quality feedback evaluation and result query, and the problems that the prior art can only store the relevant mixing quality data or the microclimate data in an isolated mode, cannot reflect the dynamic adjustment process information and is difficult to realize mixing quality tracing are overcome.
Drawings
FIG. 1 is a schematic diagram of the construction of the system of the present invention;
FIG. 2 is a diagram of steps in accordance with an embodiment of the present invention;
FIG. 3 is a microclimate monitoring interface according to an embodiment of the present invention;
FIG. 4 is a blending process real-time monitoring interface (with alarm information) of an embodiment of the present invention;
FIG. 5 is an outlet temperature calculation interface according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to realize real-time monitoring of mixing quality (mix proportion and outlet temperature) of a heart wall asphalt mixture, real-time monitoring of microclimate in a dam area and dynamic adjustment of the outlet temperature of the asphalt mixture according to an outlet temperature control model, the embodiment of the invention provides a real-time monitoring system of mixing quality of a heart wall asphalt mixture, which is shown in figure 1 and comprises: the system comprises six parts, namely a mixing building data acquisition device, a microclimate information acquisition device, an outlet temperature acquisition device, a database, an application server, a monitoring client and a field alarm device (such as a Personal Digital Assistant, PDA (Personal Digital Assistant) palm computer or mobile phone).
1. Mixing building data acquisition device
The system comprises a Data acquisition program, an integrated controller and a first Data wireless transmission device (DTU 1). The data acquisition program is installed in a computer in a control room of an asphalt mixing station, when the asphalt mixing station starts to mix asphalt mixtures, the computer in the control room correspondingly generates the mix proportion data of each batch of asphalt mixtures, then the data acquisition program installed in the computer transmits the mix proportion data of each batch of asphalt mixtures to the integrated controller in real time, and then the integrated controller packs the data and sends the data to the database and the application server through a first data wireless sending device (DTU1) through a GPRS network or a 4G network.
2. Microclimate information acquisition device
Including a permanent weather station, an integrated controller and a second wireless data transmission device (DTU 2). And a permanent weather station is installed on the roof of the management house near the dam area, and the weather station comprises an optical rainfall sensor, a wind speed transmitter and a light temperature and humidity transmitter. The weather station collects the air temperature, the atmospheric humidity, the wind speed, the rainfall and the illumination intensity of the dam area once at a certain time interval (1min), transmits the data to the integrated controller, and then the integrated controller packages the data and transmits the data to the database and the application server through a second data wireless transmitting device (DTU2) through a GPRS network or a 4G network.
3. Outlet temperature acquisition device
The system comprises a thermocouple temperature sensor, an integrated controller and a third data wireless transmission device (DTU 3). And after the finished asphalt mixture product is well mixed, the asphalt mixture is transported to a construction site by a dump truck. The thermocouple sensor is installed at the bottom of a compartment of the asphalt mixture transport vehicle, the thermocouple sensor is an e-type thermocouple, when the asphalt mixture is poured into the compartment of the dump truck from a discharge port of a mixing station, the thermocouple sensor is in contact with the asphalt mixture, the temperature collected by the thermocouple is transmitted to the integrated controller, and then the integrated controller packages and processes the data and sends the data to the database and the application server through a third data wireless sending device (DTU3) through a GPRS network or a 4G network.
4. Database and application server
The system comprises a database module, a calculation analysis module, an information feedback module and a GSM communication module.
The database module is mainly responsible for receiving and storing the data sent by the mixing building data acquisition device, the microclimate information acquisition device and the outlet temperature acquisition device, recording the dynamically adjusted process information (including alarm information), and performing data interaction and storage with the monitoring client and the calculation analysis module.
The calculation analysis module mainly realizes the following functions:
(401) and calculating the deviation of the actual value and the design value of the mixing ratio of each asphalt mixture according to the mixing ratio data sent by the mixing building data acquisition device in real time, and judging whether the deviation of the actual value and the design value of each particle size aggregate, filler and asphalt of each asphalt mixture is within the allowable deviation in real time. When the deviation of the actual value of the mix proportion from the designed value exceeds the allowable deviation, the module sends an alarm signal to the information feedback module.
(402) And judging whether microclimate information (temperature, humidity, wind speed, rainfall and illumination intensity) in the dam region is in a set standard range in real time, and when a certain microclimate parameter exceeds the standard range, sending an alarm signal to the information feedback module by the module.
(403) And calculating the outlet temperature recommended value of each asphalt mixture in real time according to the outlet temperature control model of the asphalt mixture. For example, according to measured data on the field of the Guangxi Toothi engineering, the outlet temperature control model obtained by regression fitting is as follows:
T＝Tc0-Tg
in the formula, Tc0A suggested value representing the outlet temperature of the asphalt mix in units; t represents the difference between the outlet temperature of the asphalt mixture and the atmospheric temperature, and the unit is; t isgRepresenting air temperature in units;
represents atmospheric humidity in% RH; t isr0The warehousing temperature control value is shown, and 145 ℃ can be taken.
According to actually measured data of a construction site, firstly, the correlation between the machine outlet temperature and the atmospheric temperature and humidity is strong, and the correlation between the machine outlet temperature and the atmospheric temperature and humidity is weak, and the correlation between the machine outlet temperature and the wind speed, the rainfall and the illumination intensity is weak, so that the factor with weak correlation is not considered in the machine outlet temperature model. It should be noted that the air temperature and the atmospheric humidity in different seasons exhibit different regular characteristics, so that the outlet temperature control model expressed by the formula (2) is not suitable for all time periods of the whole year, data needs to be collected at intervals (such as one month), and regression fitting and updating are performed on the model again, so that the applicability and the precision of the outlet temperature control model are improved.
The calculation analysis module is used for calculating the temperature T sent by the microclimate information acquisition device in real timegAtmospheric humidity
Calculating the current outlet temperature suggested value Tc0And the recommended outlet temperature value Tc0The updating is performed every 1 min. Meanwhile, the calculation analysis module calculates the actual outlet temperature T of the current asphalt mixturecAnd the recommended value T of the outlet temperaturec0In contrast, if Tc≥Tc0If the measured outlet temperature value is higher than the outlet temperature suggested value, the control requirement is met; when T isc＜Tc0And when the actual outlet temperature value is lower than the recommended value, the module sends an alarm signal to the information feedback module.
After receiving the alarm signal, the information feedback module sends alarm information to the monitoring client through the Internet network; meanwhile, The alarm information is sent to The alarm Mobile phone with The preset Mobile phone number through a GSM (Global System for Mobile Communication) Communication module via a GPRS (General Packet Radio Service) network, a 4G (The 4th Generation Mobile Communication Technology, fourth Generation Mobile Communication Technology) network or a 5G (The5th Generation Mobile Communication Technology, fifth Generation Mobile Communication Technology) network. The information comprises the specific condition that the mix proportion is unqualified, the prompt of unqualified outlet temperature, the specific condition that the microclimate information does not reach the standard and the like.
5. Monitoring client
The monitoring client program is installed on a computer which can be connected with an Internet network on a construction site. Before the monitoring is started, a mix proportion control standard, a microclimate control standard, an outlet temperature control model coefficient and the like are set through the client, and then the mix proportion control standard, the microclimate control standard, the outlet temperature control model coefficient and the like are stored into a database and a database of an application server through an Internet network for subsequent application. In the monitoring process, the client can display the mix proportion information, the mix proportion pie chart, the outlet temperature of each asphalt mixture, the outlet temperature change curve, the current microclimate information and the change curve of microclimate data of each asphalt mixture in real time. A user can inquire historical monitoring data and output an inquiry result through the monitoring client; meanwhile, the monitoring client receives the mixing proportion non-standard alarm information, the outlet temperature non-standard alarm information and the shutdown suggestion alarm information which are sent by the database and the application server so as to prompt field operators to take quality control measures or asphalt core shutdown measures in time, thereby ensuring the mixing quality of the asphalt mixture.
6. On-site alarm device
The site alarm device (such as PDA or mobile phone) receives various alarm short messages including alarm information of not up to standard mix proportion, alarm information of not up to standard outlet temperature and shutdown suggestion alarm information in real time through GPRS network or 4G network, when the site operator inconveniently receives the alarm information of the monitoring client, the alarm short message received by the device can be held by hand to take corresponding quality control measures or shutdown measures of the asphalt core wall in time.
The implementation of real-time monitoring of the blending quality of the asphalt mixture is described in detail with reference to fig. 2. The method specifically comprises the following steps:
(1) login monitoring client
And logging in the developed monitoring client, and verifying the user authority, wherein the user authority comprises browsing, operating and managing. The browsing user can realize the functions of visual remote real-time monitoring, inquiry, alarm information receiving and the like, and the construction unit is generally the user with the authority of the level; the operation user can set the control standard and other functions on the basis of possessing the authority of the browsing user, and the supervision unit is generally the user with the authority of the level; the administrative user is responsible for managing the authority of other users except for having the authority of the two types of users, and the relevant administrative departments and system maintenance personnel of the owner are generally the authority users of the level.
(2) Setting microclimate information monitoring standard and mix proportion control standard
And opening a control standard setting interface in the monitoring client, and setting a microclimate monitoring standard and a mix proportion control standard according to relevant regulations of the hydraulic engineering asphalt concrete construction specification SL 514-2013. The temperature is preferably above 0 ℃ during construction of the asphalt concrete core wall, the wind power is preferably less than 4-grade (5.5-7.9 m/s), the daily rainfall is preferably less than 5mm, and the humidity and the illumination intensity are not required to be controlled. Then, the information is stored in a database module of a database and an application server through an Internet network.
(3) Setting machine outlet temperature control model coefficient
And opening an outlet temperature control model coefficient setting interface in the monitoring client, and inputting outlet temperature control model coefficients obtained by regression fitting of field measured data into the interface. Then, the information is stored in a database module of a database and an application server through an Internet network.
(4) The monitoring client starts remote real-time monitoring
A monitoring client arranged on a construction site or a construction site remotely reads data such as delivery time, mixing ratio and the like of the current asphalt coiling mixture sent by a mixing building data acquisition device in a database and an application server in real time through an Internet network; reading the outlet temperature of the current asphalt mixture tray sent by the outlet temperature acquisition device; and reading data such as current air temperature, atmospheric humidity, wind speed, rainfall, illumination intensity and the like sent by the microclimate information acquisition device. The monitoring client displays the mixing proportion information, the mixing pie chart, the outlet temperature change curve, the microclimate information and the microclimate information change curve of the current asphalt mixture disc in real time, and simultaneously displays the current suggested outlet temperature value calculated according to the outlet temperature control model. The microclimate monitoring interface is shown in fig. 3.
After the monitoring client receives the alarm information sent by the information feedback module of the database and the application server, the alarm information is displayed prominently on a user interface of the client in a pop-up dialog box mode, substandard data is displayed in a special color to show the difference from normal data, and monitoring personnel are reminded to make timely feedback control measures. The results of the real-time monitoring of the blending process are shown in fig. 4.
(5) Collecting and real-time transmitting mix proportion, outlet temperature and microclimate information
The method for acquiring and transmitting the asphalt mixture mixing ratio data in real time comprises the following steps: the mixing ratio data of each asphalt mixture disc generated in a computer is read in real time through a data reading program installed in a control room computer of an asphalt mixing station, and the data is sent to a database and an application server through a GPRS network or a 4G network; the realization method for the collection and real-time transmission of the outlet temperature of the asphalt mixture comprises the following steps: acquiring the initial transportation temperature of each asphalt mixture in real time (regarding the temperature as the outlet temperature) through a thermocouple sensor arranged at the bottom of a compartment of an asphalt mixture transportation vehicle, and sending the data to a database and an application server by the same method; the method for acquiring and transmitting the microclimate information in real time comprises the following steps: the temperature, atmospheric humidity, wind speed, rainfall and illumination intensity of the dam are collected once every a period of time (1min) through a permanent meteorological station arranged on a management house roof near the dam, and the data are sent to a database and an application server through the same method.
(6) Database and application server receiving data and storing
The database and the application server receive the mix proportion, the outlet temperature, the air temperature, the atmospheric humidity, the air speed, the rainfall, the illumination intensity and other data sent by the mix building data acquisition device, the outlet temperature acquisition device and the microclimate information acquisition device in real time, and store the data into a database module of the database and the application server.
(7) The database and the application server calculate the suggested value of the temperature of the machine port
The database and the application server transmit the temperature T in real time according to the microclimate information acquisition devicegAnd atmospheric humidity
Calculating the current outlet temperature suggested value T according to the outlet temperature control modelc0And the recommended outlet temperature value Tc0The updating is performed every 1 min. The temperature calculation interface is shown in FIG. 5.
(8) Database and application server analyze and judge whether the monitoring data reach the standard
The analysis and judgment module in the database and the application server real-timely measures the current outlet temperature TcAnd the recommended value T of the outlet temperaturec0In contrast, if Tc≥Tc0If the measured outlet temperature value is higher than the outlet temperature suggested value, the control requirement is met; when T isc＜Tc0And when the actual outlet temperature value is lower than the recommended value, the outlet temperature does not reach the standard, and the module sends an alarm signal to the information feedback module of the database and the application server. Meanwhile, the analysis and judgment module in the database and the application server compares the mix proportion data and the microclimate data with the preset control standard of the type in real time, and if the actually measured mix proportion data or the microclimate data exceed the control standard, the module sends an alarm signal to the information feedback module of the database and the application server. The alarm implementation is shown in fig. 4.
(9) Sending alarm information when the monitored data does not reach the standard
After receiving the alarm signal, the information feedback modules of the database and the application server send alarm information to the monitoring client through the Internet network; meanwhile, alarm information is sent to the alarm mobile phone with the preset mobile phone number through a GSM communication module of the database and the application server. The information comprises the specific condition that the mix proportion is unqualified, the prompt of unqualified outlet temperature, the specific condition that the microclimate information does not reach the standard and the like.
(10) Making corresponding control measures on site
When the on-site operator receives the alarm information that the mix proportion does not reach the standard, the mixing process is adjusted to meet the set standard requirement; and when the field operating personnel receive the alarm information that the outlet temperature does not reach the standard, adjusting the mixing temperature to change the outlet temperature so as to enable the outlet temperature to reach the control standard. And when the field operating personnel receive the microclimate information non-standard alarm information, stopping the operation construction of the asphalt core wall.
(11) Storing the monitoring results for subsequent query
Through Internet, the monitoring client stores the monitoring result and various dynamic adjustment process information (including alarm information and the like) in a database and a database module of an application server, and a user can inquire a historical monitoring result through the monitoring client and use the historical monitoring result for blending quality traceability analysis.
The present invention is not limited to the above-described embodiments. The foregoing description of the specific embodiments is intended to describe and illustrate the technical solutions of the present invention, and the above specific embodiments are merely illustrative and not restrictive. Those skilled in the art can make many changes and modifications to the invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A core wall asphalt mixture mixing quality real-time monitoring system is characterized by comprising a mixing building data acquisition device, a microclimate information acquisition device, an outlet temperature acquisition device, a database, an application server, a monitoring client and a field alarm device;
the mixing building data acquisition device comprises an integrated controller and a first data wireless transmitting device; the mixing building data acquisition device is installed in a control room of an asphalt mixing station, and the warehouse-out time and the mix proportion data of each set of generated asphalt mixture are transmitted to a database and an application server in real time through a first data wireless transmitting device;
the microclimate information acquisition device comprises a permanent weather station, an integrated controller and a second data wireless transmission device; a permanent weather station is installed on a management house roof near a dam area, the temperature, the humidity, the wind speed, the rainfall and the illumination intensity of the dam area are collected once at fixed time intervals, and data are sent to a database and an application server through a second data wireless sending device;
the outlet temperature acquisition device comprises a thermocouple temperature sensor, an integrated controller and a third data wireless transmission device; a thermocouple sensor is arranged in a compartment of the asphalt mixture transport vehicle to acquire the initial transport temperature of each asphalt mixture as the outlet temperature of the asphalt mixture, and temperature data are sent to a database and an application server through a third data wireless sending device;
the database and the application server are responsible for receiving and storing data sent by the mixing building data acquisition device, the microclimate information acquisition device and the outlet temperature acquisition device, and calculating a current outlet temperature recommended value according to the outlet temperature control model;
the monitoring client is composed of a computer which can be connected with an Internet network on a construction site, before monitoring is started, a mix proportion control standard, a microclimate control standard and an outlet temperature control model coefficient are set through the monitoring client, and then the set mix proportion control standard, the microclimate control standard and the outlet temperature control model coefficient are stored in a database and a database of an application server through the Internet network for subsequent application; in the monitoring process, the monitoring client displays the mix proportion information, the mix proportion pie chart, the outlet temperature of each asphalt mixture, the outlet temperature change curve, the current microclimate information and the change curve of microclimate data in real time; a user can inquire historical monitoring data and output an inquiry result through the monitoring client; meanwhile, the monitoring client receives the mixing ratio non-standard alarm information, the outlet temperature non-standard alarm information and the shutdown suggestion alarm information which are sent by the database and the application server so as to prompt field operators to take quality control measures or shutdown measures in time to ensure the mixing quality of the asphalt mixture;
the field alarm device receives various alarm short message information sent by the database and the application server in real time through a communication network; when the field operator is inconvenient to receive the alarm information of the monitoring client, corresponding quality control measures or asphalt core shutdown measures can be taken in time through the alarm short message received by the handheld field alarm device.
2. The system for monitoring the blending quality of the asphalt mixture into a core wall in real time according to claim 1, wherein the on-site alarm device is composed of a Personal Digital Assistant, a PDA (Personal Digital Assistant) palm computer or a mobile phone.
3. The system for monitoring the mixing quality of the core asphalt mixture according to claim 1, wherein the expression of the outlet temperature control model is as follows:
T＝Tc0-Tg
in the formula, Tc0A suggested value representing an outlet temperature of the asphalt mix; t represents the difference between the temperature of the outlet of the asphalt mixture and the atmospheric temperature, TgRepresents an air temperature;
represents atmospheric humidity; v represents wind speed; i represents rainfall; e represents the illumination intensity; t isr0Representing a warehousing temperature control value; a. b, c, d, e represent model coefficients, i1、i2、i3、i4、i5Respectively representing the number of model coefficients, n1、n2、n3、n4、n5Respectively representing the maximum value of the number of coefficients of each model and representing the modulusA type error;
the formula (1) is obtained by fitting the actually measured data of the construction site through regression analysis, and each influence factor (air temperature T) is analyzed through calculating a correlation coefficientgAtmospheric humidity
And determining specific influence factors in the actual engineering outlet temperature control model according to the correlation between the wind speed v, the rainfall I and the illumination intensity E) and the warehousing temperature.
4. The system for monitoring the mixing quality of the core asphalt mixture according to claim 1, wherein the database and the application server are used for monitoring the mixing quality of the core asphalt mixture according to the temperature T transmitted by the microclimate information acquisition device in real timegAtmospheric humidity
Wind speed v, rainfall I and illumination intensity E, and calculating the current outlet temperature suggested value Tc0And the recommended outlet temperature value Tc0Updating every 1 min; the database and the application server real-timely measure the outlet temperature TcAnd the recommended value T of the outlet temperaturec0In contrast, if Tc≥Tc0If the measured outlet temperature value is higher than the outlet temperature suggested value, the control requirement is met; when T isc＜Tc0When the actual outlet temperature value is lower than the recommended value, the real-time monitoring system sends alarm information that the outlet temperature does not reach the standard to the monitoring client through the Internet network, or sends alarm short message information to the construction site alarm device through the communication network through the GSM communication device connected with the database and the application server.
5. The system for monitoring the blending quality of the core asphalt mixture in real time as claimed in claim 1, wherein the database and the application server further judge whether the current monitoring data is within the qualified standard range in real time according to the mix proportion control standard and the microclimate monitoring standard input by the monitoring client, and if the actually measured mix proportion data exceeds the control standard, the system sends alarm information that the mix proportion does not reach the standard to the monitoring client through an Internet network, or sends an alarm short message to a construction site alarm device through a communication network through a GSM communication device connected with the database and the application server; if the microclimate data exceeds the control standard, the system sends alarm information of asphalt core shutdown suggestions to the monitoring client through the Internet network, or sends alarm short messages to a construction site alarm device through the communication network through a GSM communication device connected with the database and the application server.
6. A method for monitoring the mixing quality of a core wall asphalt mixture in real time is characterized by comprising the following steps:
(1) logging in a monitoring client;
(2) setting a microclimate information monitoring standard and a mix proportion control standard;
(3) setting an outlet temperature control model coefficient;
(4) the monitoring client starts remote real-time monitoring;
(5) collecting the mix proportion of each set of asphalt mixture, the outlet temperature and microclimate data of each set of asphalt mixture and sending the data in real time;
(6) the database and the application server receive and store the data;
(7) the database and the application server calculate a recommended value of the temperature of the machine port;
(8) the database and the application server analyze and judge whether each monitoring data reaches the standard;
(9) the monitoring client sends alarm information when the monitoring data does not reach the standard;
(10) making corresponding control measures on site;
(11) and storing the monitoring result and the dynamic adjustment process information for subsequent information query and quality traceability analysis.
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