技术领域technical field
本发明属于路基路面无损检测和评价技术领域，涉及一种基于无线自组网的载荷位移测量系统，应用在公路质量检测现场或建筑工地现场的路基路面位移测量、数据的无线传输和质量结果的显示。The invention belongs to the technical field of non-destructive detection and evaluation of subgrade and pavement, and relates to a load displacement measurement system based on a wireless ad hoc network, which is applied to the measurement of subgrade and pavement displacement, wireless transmission of data and quality results at road quality inspection sites or construction sites show.
背景技术Background technique
在以往的检测现场，通常采用一种传统的载荷位移测量系统检测道路路基和路面的动态弯沉，为道路工程建设提供质量依据。该类载荷位移测量系统通常被称为弯沉仪或动态变形模量测试仪，主要由上位机、数据线和下位机组成。In the past detection site, a traditional load displacement measurement system is usually used to detect the dynamic deflection of road subgrade and road surface, which provides quality basis for road engineering construction. This type of load displacement measurement system is usually called a deflection meter or a dynamic deformation modulus tester, and is mainly composed of a host computer, a data line and a lower computer.
在道路现场使用传统的载荷位移测量系统检测时，使用前需要拉开数据线通过航插连接上位机和下位机，准备工作繁琐。在使用过程中，按照工程质量检验的要求，需要在路基或路面上不断地更换测量点。其中，上位机由控制箱和笔记本电脑组成，上位机和下位机的体积和重量大，单人无法一趟搬走，所以至少需要单人搬运两趟或两个人协同搬运一趟才能把上位机和下位机搬到下一个测量点，费时费力；同时搬运过程中还要考虑传输线的长度限制问题，有时候过度拉扯数据线和航插会造成测量数据不准确或丢失，数据的传输严格受制于长度有限的数据线。另外，由于控制盒和笔记本的叠加高度小，用户需要蹲着操作笔记本电脑，处理下位机送来的数据，使用极其不方便。因此，研制一种结构简单、便携性强、操作简单的载荷位移测量系统显得尤为重要。When the traditional load displacement measurement system is used for detection on the road site, it is necessary to pull the data cable to connect the upper computer and the lower computer through the aviation plug before use, and the preparation work is cumbersome. During use, according to the requirements of engineering quality inspection, it is necessary to constantly replace the measurement points on the subgrade or road surface. Among them, the host computer is composed of a control box and a notebook computer. The volume and weight of the host computer and the lower computer are large, and a single person cannot remove it at one time. It is time-consuming and labor-intensive to move with the lower computer to the next measurement point; at the same time, the length limit of the transmission line must also be considered during the transportation process. Sometimes excessive pulling of the data line and aviation insertion will cause inaccurate or lost measurement data, and data transmission is strictly subject to Data cables of limited length. In addition, due to the small stacking height of the control box and the notebook, the user needs to squat to operate the notebook computer and process the data sent by the lower computer, which is extremely inconvenient to use. Therefore, it is particularly important to develop a load displacement measurement system with simple structure, strong portability and simple operation.
发明内容Contents of the invention
本发明的目的在于提供一种基于无线自组网的载荷位移测量系统，其精简了测量系统的组成架构，提高了系统的便携性、易操作性和数据传输的稳定性。The purpose of the present invention is to provide a load displacement measurement system based on wireless ad hoc network, which simplifies the composition of the measurement system and improves the portability, ease of operation and stability of data transmission of the system.
实现本发明目的技术方案：一种基于无线自组网的载荷位移测量系统，其包括下位机、无线传输控制系统和上位机；The technical solution for realizing the object of the present invention: a load displacement measurement system based on wireless ad hoc network, which includes a lower computer, a wireless transmission control system and an upper computer;
所述的下位机包括机械冲力机构、传感器感应机构和数据采集卡；其中，操作机械冲力机构产生冲击力作用于路面，路面产生位移形变，传感器感应机构感应冲击力和路面位移形变，同时将冲击力和位移量转换为模拟电信号，该模拟信号经过数据采集卡的采样和量化处理后转化为数字信号，经由UART单元提供给无线发射机构；The lower computer includes a mechanical impulse mechanism, a sensor sensing mechanism and a data acquisition card; wherein, the mechanical impulse mechanism is operated to generate an impact force acting on the road surface, and the road surface generates displacement deformation, and the sensor sensing mechanism senses the impact force and the road surface displacement deformation, and simultaneously the impact The force and displacement are converted into analog electrical signals, which are converted into digital signals after being sampled and quantized by the data acquisition card, and provided to the wireless transmitting mechanism through the UART unit;
所述的无线传输控制系统包括无线发射机构、无线AP和无线接收机构；The wireless transmission control system includes a wireless transmitting mechanism, a wireless AP and a wireless receiving mechanism;
无线发射机构包括控制器、UART单元、缓存区和TCP/IP协议栈；其中，UART单元与下位机的数据采集卡通过UART串口连接，UART单元接受数据采集卡发送过来的冲击力和位移的混合数据后，在控制器的控制下将数据暂时存放到缓冲区中，当缓冲区填满时，数据被送到TCP/IP协议栈，TCP/IP协议栈将数据进行无线发送到无线接收机构中；The wireless transmission mechanism includes a controller, a UART unit, a buffer area and a TCP/IP protocol stack; among them, the UART unit and the data acquisition card of the lower computer are connected through the UART serial port, and the UART unit receives the mixed impact force and displacement sent by the data acquisition card. After receiving the data, the data is temporarily stored in the buffer under the control of the controller. When the buffer is full, the data is sent to the TCP/IP protocol stack, and the TCP/IP protocol stack wirelessly sends the data to the wireless receiving mechanism ;
无线AP包括无线AP模块和电源模块；其中，无线AP模块起无线接入的作用，按照设置好的参数与无线发射机构、无线接收机构组成无线WIFI星型拓扑网络；The wireless AP includes a wireless AP module and a power supply module; among them, the wireless AP module plays the role of wireless access, and forms a wireless WIFI star topology network with the wireless transmitting mechanism and the wireless receiving mechanism according to the set parameters;
无线接收机构包括无线WIFI模块和接口函数单元；无线WIFI模块接收无线发射机构的TCP/IP协议栈发送的送来的无线数据，接口函数单元提供了一种函数调用接口，上位机的测量软件调用此单元的函数即可获取无线WIFI模块接收的无线数据。The wireless receiving mechanism includes a wireless WIFI module and an interface function unit; the wireless WIFI module receives the wireless data sent by the TCP/IP protocol stack of the wireless transmitting mechanism, and the interface function unit provides a function call interface, which is called by the measurement software of the upper computer The function of this unit can obtain the wireless data received by the wireless WIFI module.
所述的上位机包括Android手机和手机上运行的测量软件；该测量软件由Java语言开发，运行于Android手机，它从无线接收机构的接口函数单元中获取到无线数据后，将其解析成有意义的物理数据，这些数据经过电压值与码制换算、滤波处理、极值判定后，最终以曲线和峰值显示，并被保存到手机中。Described upper computer comprises Android mobile phone and the measurement software that runs on mobile phone; This measurement software is developed by Java language, runs on Android mobile phone, after it obtains wireless data from the interface function unit of wireless receiving mechanism, it is resolved into effective Meaningful physical data, after voltage value and code system conversion, filtering processing, and extreme value determination, these data are finally displayed in curves and peak values, and are saved to the mobile phone.
如上所述的一种基于无线自组网的载荷位移测量系统，其所述的无线WIFI星型拓扑网络是基于IEEE 802.11b标准的无线局域网，网络链路安全稳定，网间的各个设备能相互访问。As mentioned above, a load displacement measurement system based on wireless ad hoc network, the wireless WIFI star topology network is a wireless local area network based on the IEEE 802.11b standard, the network link is safe and stable, and each device in the network can communicate with each other. access.
如上所述的一种基于无线自组网的载荷位移测量系统，其所述的TCP/IP协议栈也接收上位机发送过来的无线数据。According to the load displacement measurement system based on wireless ad hoc network as mentioned above, the TCP/IP protocol stack also receives the wireless data sent by the host computer.
本发明的效果在于：Effect of the present invention is:
本发明针对传统载荷位移测量系统在使用、运输、数据传输和数据处理系统方面的不足，提供一种结构简单、可靠性高、采用无线自组网技术进行数据通信的载荷位移测量系统。用户可以彻底摆脱数据线和航插的缺点限制，只需单手操作掌中的上位机即可完成数据的采集、传输和处理，更换测量点时，不受制于上位机和下位机之间的数据线长度，单人单趟即可移动整个测量系统，提高了载荷位移测量系统的便携性、易操作性和数据传输的稳定性。The invention aims at the deficiencies of the traditional load displacement measurement system in terms of use, transportation, data transmission and data processing system, and provides a load displacement measurement system with simple structure, high reliability, and data communication using wireless ad hoc network technology. Users can completely get rid of the shortcomings of data cables and aviation plugs, and only need to operate the upper computer in the palm of one hand to complete data collection, transmission and processing. When changing the measurement point, they are not restricted by the data between the upper computer and the lower computer. Line length, one person can move the entire measurement system in one trip, which improves the portability, ease of operation and stability of data transmission of the load displacement measurement system.
本发明省去了航插、数据线等有线连接部件，解决了传统载荷位移测量系统使用繁琐、移动距离受限、数据不稳定的缺点。Android手机取代控制箱和笔记本电脑作为上位机，体积小、重量轻，换点测量时，和无线AP放于用户随身的口袋或包中，用户可以单人单趟搬运下位机到下一测量点，从而完成整个测量系统的单趟移动，解决了传统载荷位移测量系统换点测量时移动的部件多、设备总体质量大、移动次数多的缺点。The invention omits wired connection parts such as aviation plugs and data lines, and solves the shortcomings of traditional load displacement measurement systems, such as cumbersome use, limited moving distance, and unstable data. The Android mobile phone replaces the control box and laptop as the upper computer, which is small in size and light in weight. When changing points for measurement, it can be placed in the user's pocket or bag with the wireless AP, and the user can carry the lower computer to the next measurement point by one person and one trip. , so as to complete the single-pass movement of the entire measurement system, which solves the shortcomings of many moving parts, large overall equipment mass, and many times of movement when the traditional load displacement measurement system changes points.
附图说明Description of drawings
图1本发明所述的一种基于无线自组网的载荷位移测量系统示意图。Fig. 1 is a schematic diagram of a load displacement measurement system based on wireless ad hoc network according to the present invention.
其中，1—下位机；2—无线传输控制系统；3—无线发射机构；4—无线AP；5—无线接收机构；6—上位机(Android手机)；11—机械冲力机构；12—传感器感应机构；13—数据采集卡；31—控制器；32—UART单元；33—缓存区；34—TCP/IP协议栈；41—电源模块；42—无线AP模块；51—无线WIFI模块；52—接口函数单元；61—Android系统手机；62—测量软件。Among them, 1—lower computer; 2—wireless transmission control system; 3—wireless transmitting mechanism; 4—wireless AP; 5—wireless receiving mechanism; 6—host computer (Android mobile phone); 11—mechanical impulse mechanism; 12—sensor sensing Mechanism; 13—data acquisition card; 31—controller; 32—UART unit; 33—buffer area; 34—TCP/IP protocol stack; 41—power supply module; 42—wireless AP module; 51—wireless WIFI module; 52— Interface function unit; 61—Android system mobile phone; 62—measurement software.
具体实施方式detailed description
下面结合附图和具体实施例对本发明所述的一种基于无线自组网的载荷位移测量系统作进一步描述。A wireless ad hoc network-based load displacement measurement system according to the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
如图1所示，本发明所述的一种基于无线自组网的载荷位移测量系统主要由下位机、无线传输控制系统和上位机组成。As shown in Fig. 1, a load displacement measurement system based on wireless ad hoc network according to the present invention is mainly composed of a lower computer, a wireless transmission control system and an upper computer.
所述的下位机1包括机械冲力机构11、传感器感应机构12和数据采集卡13；其中，操作机械冲力机构11产生冲击力作用于路面，路面产生位移形变，传感器感应机构12感应冲击力和路面位移形变，同时将冲击力和位移量转换为模拟电信号，该模拟信号经过数据采集卡13的采样和量化处理后转化为数字信号，经由UART单元32提供给无线发射机构3；The lower computer 1 includes a mechanical impulse mechanism 11, a sensor sensing mechanism 12 and a data acquisition card 13; wherein, the operation of the mechanical impulse mechanism 11 produces an impact force acting on the road surface, and the road surface produces displacement deformation, and the sensor sensing mechanism 12 senses the impact force and the road surface Displacement deformation, while converting the impact force and displacement into an analog electrical signal, the analog signal is converted into a digital signal after being sampled and quantized by the data acquisition card 13, and provided to the wireless transmitting mechanism 3 via the UART unit 32;
所述的无线传输控制系统2包括无线发射机构3、无线AP4和无线接收机构5；The wireless transmission control system 2 includes a wireless transmitting mechanism 3, a wireless AP4 and a wireless receiving mechanism 5;
无线发射机构3包括控制器31、UART单元32、缓存区33和TCP/IP协议栈34；其中，UART单元32与下位机1的数据采集卡13通过UART串口连接，UART单元32接受数据采集卡13发送过来的冲击力和位移的混合数据后，在控制器31的控制下将数据暂时存放到缓冲区33中，当缓冲区33填满时，数据被送到TCP/IP协议栈34，TCP/IP协议栈34将数据进行无线发送到无线接收机构中；Wireless transmitting mechanism 3 comprises controller 31, UART unit 32, cache area 33 and TCP/IP protocol stack 34; Wherein, UART unit 32 is connected with the data acquisition card 13 of lower computer 1 by UART serial port, and UART unit 32 accepts data acquisition card 13 After sending the mixed data of impact force and displacement, the data is temporarily stored in the buffer 33 under the control of the controller 31. When the buffer 33 is full, the data is sent to the TCP/IP protocol stack 34, and the TCP /IP protocol stack 34 wirelessly sends the data to the wireless receiving mechanism;
无线AP4包括无线AP模块42和电源模块41；其中，无线AP模块42起无线接入的作用，按照设置好的参数与无线发射机构3、无线接收机构5组成无线WIFI星型拓扑网络；在无线AP的协调下，无线发射机构3和无线接收机构5通过可靠数据传输协议进行无线会话；Wireless AP4 comprises wireless AP module 42 and power supply module 41; Wherein, wireless AP module 42 plays the effect of wireless access, forms wireless WIFI star topology network with wireless transmitting mechanism 3, wireless receiving mechanism 5 according to the parameter set; Under the coordination of the AP, the wireless transmitting mechanism 3 and the wireless receiving mechanism 5 conduct a wireless session through a reliable data transmission protocol;
无线接收机构5包括无线WIFI模块51和接口函数单元52；无线WIFI模块51接收无线发射机构3的TCP/IP协议栈34发送的送来的无线数据，接口函数单元52提供了一种函数调用接口，上位机的测量软件62调用此单元的函数即可获取无线WIFI模块接收51的无线数据。The wireless receiving mechanism 5 includes a wireless WIFI module 51 and an interface function unit 52; the wireless WIFI module 51 receives the wireless data sent by the TCP/IP protocol stack 34 of the wireless transmitting mechanism 3, and the interface function unit 52 provides a function call interface The measurement software 62 of the upper computer can obtain the wireless data received by the wireless WIFI module 51 by calling the function of this unit.
所述的上位机6包括Android手机61和手机上运行的测量软件62；该测量软件62由Java语言开发，运行于Android手机61，它从无线接收机构5的接口函数单元52中获取到无线数据后，将其解析成有意义的物理数据，这些数据经过电压值与码制换算、滤波处理、极值判定后，最终以曲线和峰值显示(采用现有技术)，并被保存到手机中。Described upper computer 6 comprises the measurement software 62 that runs on Android mobile phone 61 and mobile phone; This measurement software 62 is developed by Java language, runs on Android mobile phone 61, and it obtains wireless data from the interface function unit 52 of wireless receiving mechanism 5 Afterwards, it is analyzed into meaningful physical data. After the voltage value and code system conversion, filtering processing, and extreme value determination, these data are finally displayed as curves and peak values (using the existing technology) and saved in the mobile phone.
所述的无线WIFI星型拓扑网络是基于IEEE 802.11b标准的无线局域网，网络链路安全稳定，网间的各个设备能相互访问。The wireless WIFI star topology network is a wireless local area network based on the IEEE 802.11b standard, the network link is safe and stable, and each device in the network can access each other.
所述的TCP/IP协议栈34也接收上位机6发送过来的无线数据。The TCP/IP protocol stack 34 also receives the wireless data sent by the upper computer 6 .
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637638.6ACN104346916B (en) | 2014-11-05 | 2014-11-05 | A kind of load displacement measuring system based on wireless self-networking |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637638.6ACN104346916B (en) | 2014-11-05 | 2014-11-05 | A kind of load displacement measuring system based on wireless self-networking |
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| CN104346916A CN104346916A (en) | 2015-02-11 |
| CN104346916Btrue CN104346916B (en) | 2017-12-22 |
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| CN201410637638.6AActiveCN104346916B (en) | 2014-11-05 | 2014-11-05 | A kind of load displacement measuring system based on wireless self-networking |
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| CN (1) | CN104346916B (en) |
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