1. The embedded concrete quality monitoring model based on the BDS is characterized in that the whole system mainly comprises: big dipper location monitoring system, control system, communication network.

The method of claim 1.

2. The embedded BDS-based concrete quality monitoring model of claim 1, wherein: the Beidou positioning monitoring method is implemented according to the following steps:

first step base station layout: a BDS system independently developed in China is adopted to measure the mixing time of concrete, firstly, a positioning base station is established, and a BDS positioning chip is embedded into the inner wall of a concrete mixer.

And a second step of data collection and conversion: and the positioning data of the positioning base station and the monitoring point is converted into speed data and time data through a Beidou high-precision positioning algorithm.

The third step is intelligent monitoring: the mixing process and the transportation process of the concrete are monitored in real time through the obtained speed data and time data, and the production information of the concrete is timely shared by an upper management system through a communication system.

3. The embedded BDS-based concrete quality monitoring model of claim 1, wherein: the control system comprises a generation process and a control system, wherein the generation process is carried out according to the following steps:

the first step is stirring regularly: the method comprises the steps of acquiring time information of stirring of the concrete stirrer through a communication network, adding cement, stones, water and sand into the stirrer at a specific time by a control system, and controlling the stirring time to ensure the quality of the concrete.

And secondly, planning the optimal transportation path: in the transportation process of the concrete, the BDS can plan an optimal route for the concrete transport vehicle according to the concrete mixing station and the construction site under a certain time condition, so that the phenomena of water evaporation and layering of the concrete in the transportation process are avoided as much as possible, and the quality of the concrete is guaranteed.

And thirdly, performing background decision, namely, a manager can master the production condition of the concrete in the first time without being limited by regions through a background, and the decision of the manager is ensured to be timely and correct so as to ensure that the quality of the concrete reaches the optimum.

4. The embedded BDS-based concrete quality monitoring model of claim 1, wherein: the communication system generation process is carried out according to the following steps:

the first step of field communication network construction: the system comprises a plurality of wireless communication networks, a plurality of local area networks, a server, a computer, a plurality of data processing units and a plurality of data transmission units.

Secondly, network interconnection is carried out; the upper management systems of the whole enterprise can be connected by using the Internet, so that remote management and deployment are realized.

Background

With the large-scale construction of infrastructure, concrete mixing in the future will seek higher quality control, better equipment configuration and better economic benefits. Concrete is a semi-finished product cementing material synthesized by concrete processing equipment, and is used as one of the most important materials in modern buildings, and is increasingly widely applied to construction engineering construction. Concrete is a necessary construction material in the construction of buildings, roads, bridges, dams and the like. Along with commercialization and centralization of concrete production, a concrete mixing plant has also been developed rapidly, and the concrete mixing plant mainly comprises systems and structural components for feeding, storing, blending, stirring, discharging, controlling and the like. When a user selects a concrete mixing plant, various requirements can be provided according to construction characteristics, site conditions and other factors, and the optimal configuration can be realized by adopting a standardized modular design. Intellectualization is the final development direction of all mechanical equipment, and concrete mixing plants are no exception.

The Beidou positioning technology is a regional navigation positioning system established by China. The system consists of four (two working satellites and 2 spare satellites) Beidou positioning satellites (Beidou I), a ground part with a ground control center as a main part and a Beidou user terminal. With the development of the construction and service capability of the Beidou navigation system, intelligent research and development and industrialization based on Beidou and satellite high-level data are always the hot problems of research. With the independent innovation of each major country in the world and the enhancement of the consciousness of domestic manufacturing, the Beidou system is increasingly perfect, compared with the GPS, the Beidou has absolute advantages of safety, reliability and the like besides the short message communication and the additional services of a nationwide region enhancement system and the like, and meanwhile, the Beidou satellite technology can be fully utilized by taking the reference of domestic successful Beidou application achievements to make technical innovation on the basis of comprehensive operation high and new technology.

With the advent of the information age, the information of our machines is more needed. A plurality of modularized systems of the concrete mixing plant are connected together through a communication network, all data are shared on a server, and a computer is used for carrying out comprehensive management, reasonable scheduling and transmission of various data, so that the real-time monitoring and management of the concrete are realized.

Therefore, the BDS/GNSS multi-system multi-frequency high-precision positioning system can be embedded into the concrete monitoring system, and the systems are connected through the communication network, so that the concrete mixing plant can realize automation, intellectualization and informatization from batching, metering and mixing to the whole discharging production process.

Disclosure of Invention

The invention provides an embedded concrete quality monitoring model based on BDS, which can meet the requirements of concrete quality monitoring in different application scenes, thereby realizing all-weather, full-automatic, high-precision and high-reliability quality monitoring of concrete quality.

The technical scheme of the invention is as follows: embedding a BDS (Bei Dou Navigation Satellite System) positioning system in a concrete quality monitoring model to acquire positioning information in real time, and selecting the most appropriate position to establish a concrete mixing station by comprehensively considering environmental factors and economic factors through a high-precision Beidou positioning system on the site of concrete mixing; in the concrete stirring process, the Beidou chip is used for monitoring the concrete stirring process in real time to control the feeding time and the stirring time so as to ensure the quality of the concrete; during concrete transportation, the monitoring system can plan an optimal route for the concrete transport vehicle under different road conditions according to the BDS, so that the phenomena of water evaporation and layering of the concrete during transportation are avoided as much as possible, and the quality of the concrete is guaranteed.

(1) Concrete mixing plant site selection based on Beidou system

The BDS satellite of China is used for acquiring position information of a construction site and the surrounding of the construction site, multiple factors such as construction characteristics, site conditions, environmental factors, economic benefits and Beidou signal receiving are integrated, the most appropriate position is selected to establish the soil-mixing station, and optimal configuration is achieved.

The first step is as follows: determining the whole range U of the site m for establishing the mixing plant, positioning N places such as business centers of hospitals, schools, residential areas and the like in the U by using a BDS system, respectively rounding by taking the safe distance Ri as the radius, and obtaining O1 and O2 … ON. union sets

O ═ { O1 ═ O2 ═ … ≦ ON } then S set obtained by S ═ U-O is used to carry out addressing in S

The second step is that: comprehensively considering the engineering site n, the road condition and the number of the received satellite signals, further limiting the site selection site to ensure the distance between the mixing plant and the construction siteAnd smaller, the station building with the position with good road condition and the position with more satellites on the receiving day is prioritized under the condition.

(2) Embedded concrete mixing process quality monitoring based on BDS

The big dipper positioning chip is embedded into the inner wall of the concrete mixer to establish monitoring points, the change of the relative positioning base station position of each position data is measured according to the positioning data of the monitoring points, so as to calculate the concrete degree and time of the mixing of the concrete mixer, and then the data is transmitted to the control system through the communication network, and the control system adds raw materials at a proper time. So as to realize the real-time monitoring of the whole stirring process.

The first step is as follows: the number of times of stirring n can be calculated by monitoring the periodic variation of the positions X1-XT of the monitoring points on the inner wall of the reference station stirrer.

The second step is that: the quality of the concrete mixing is monitored by comparing whether the prescribed mixing times are completed within the mixing time t.

(3) Embedded concrete transportation process quality monitoring based on BDS

In the muddy earth transportation, can fix a position muddy earth transport vechicle in real time through big dipper navigation system, according to the road conditions to and emergency, for the muddy earth transportation planning best transportation route avoids muddy earth in the transportation phenomenon of evaporation of water and layering as far as possible, guarantee the quality of muddy earth.

Drawings

FIG. 1 is a BDS-based concrete mixer site selection diagram.

Fig. 2 is a diagram of an embedded concrete quality monitoring system based on BDS.

Detailed Description

The process variant of the invention is further illustrated below with reference to the embodiments shown in the drawing

As shown in the first drawing, the first drawing is a drawing of an embedded concrete quality monitoring system based on BDS, in the invention, positioning needs to be performed by using a positioning base station and a BDS satellite in the sky as a reference base station, and a BDS positioning signal is transmitted to a control system through a communication network to realize concrete quality detection and control the mixing and transportation process of concrete.

As shown in fig. 1, the BDS localization in china is utilized. Theoretically, the greater the number of satellites in the sky that can be received, the more accurate the positioning accuracy, the higher the positioning accuracy and the greater the coverage area. The condition is fully considered in the site selection process of the soil-mixed mixing plant to ensure the positioning precision, so that the positioning base station and the monitoring point can receive enough BDS satellite signals.

As shown in fig. 2, the BDS-based embedded concrete quality monitoring system comprises the following steps:

firstly, monitoring points and base stations are distributed: embedding a BDS positioning chip as a monitoring point at a key position of the inner wall of the concrete mixer, wherein the main equipment comprises a Beidou high-precision receiver and an antenna; and a positioning base station is established at a position which is close to the monitoring point and has stability, and the main equipment is a high-precision receiver and an antenna which are used as reference bases for monitoring the displacement change of the monitoring point in real time.

And a second step of data processing and transmission: and performing positioning settlement through the obtained differential data, and then transmitting the real-time positioning data stream to a computer terminal through a wired communication network. And after acquiring the positioning data of the positioning base station and the monitoring station, the computer terminal converts the positioning data into information such as the number of stirring turns and the like, performs graphical display and provides the information for a control system to finish quality monitoring.

Thirdly, communication network system construction: the communication network is connected with the monitoring center, the positioning base station, the monitoring point, the computer terminal and the control system. A plurality of control systems are connected together, all data are shared on a server, one computer is used for overall management, reasonable scheduling and transmission of various data,

fourthly, remote monitoring decision making: the upper management systems of the whole enterprise are connected together by utilizing the Internet to carry out remote management and deployment.