CN103310613A - Movable ad-hoc network remote monitoring device of soil environment information - Google Patents
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Abstract
本发明涉及农田土壤环境信息的监测，具体是一种移动式自组网土壤环境信息远程监测装置。它包括土壤环境信息采集节点装置、远程信息传输通道以及远程服务器，采集节点装置由太阳能电池板、可移动式支架、数据采集控制箱、土壤要素传感器、卫星定位装置组成，可移动式支架为太阳能电池板和数据采集控制箱提供支撑，土壤要素传感器、卫星定位装置分别通过可插拔接口与数据采集控制箱内的数据采集电路连通，太阳能电池板为整个系统提供电源。本发明能在远程服务器中显示多个监测点的全天候农田土壤环境数据，并可通过卫星定位装置获取监测点的准确地理位置，也可以通过电子地图形式反映数据信息，非常直观；监测站点能方便地迁移，提高了系统的实用性。
The invention relates to the monitoring of farmland soil environment information, in particular to a mobile ad hoc network soil environment information remote monitoring device. It includes a soil environment information collection node device, a remote information transmission channel, and a remote server. The collection node device is composed of a solar panel, a movable bracket, a data acquisition control box, a soil element sensor, and a satellite positioning device. The battery board and the data acquisition control box provide support, the soil element sensor and the satellite positioning device are respectively connected with the data acquisition circuit in the data acquisition control box through pluggable interfaces, and the solar panel provides power for the entire system. The invention can display the all-weather farmland soil environment data of multiple monitoring points in the remote server, and can obtain the accurate geographic location of the monitoring point through the satellite positioning device, and can also reflect the data information in the form of an electronic map, which is very intuitive; the monitoring site can be convenient Migrating to improve the practicability of the system.
Description
技术领域 technical field
本发明涉及农田土壤环境信息的监测技术，特别是涉及一种移动式自组网土壤环境信息远程监测装置。 The invention relates to the monitoring technology of farmland soil environment information, in particular to a mobile ad hoc network soil environment information remote monitoring device.
背景技术 Background technique
现代科学技术的快速发展，深刻的影响着农业生产方式的转变。在现代计算机和电子技术快速发展的推动下，传统的粗放型的农业生产方式逐渐向精准化农业作业过渡。精准农业是现代农业发展的一个主要方向，农田土壤环境信息的监测是实施和发展精准农业的一个重要环节。监测农田土壤环境信息可以给农田的农业生产提供指导，为农业生产者、决策者的施肥和灌溉提供有效的依据，对保障农田粮食丰收具有重要意义。 The rapid development of modern science and technology has profoundly affected the transformation of agricultural production methods. Driven by the rapid development of modern computer and electronic technology, traditional extensive agricultural production methods are gradually transitioning to precision agricultural operations. Precision agriculture is a main direction of modern agricultural development, and the monitoring of farmland soil environment information is an important link in the implementation and development of precision agriculture. Monitoring farmland soil environment information can provide guidance for farmland agricultural production, provide effective basis for fertilization and irrigation for agricultural producers and decision makers, and is of great significance to ensure a bumper harvest of farmland grain.
在现有的有关农田土壤环境信息监测技术中，主要采用以下方式进行土壤信息的采集：手持土壤信息采集设备；取土质样品化验法；固定式的土壤信息监测站。手持土壤信息采集设备通过人工手持土壤信息采集设备到田间采集土壤信息，这种方式成本小，使用灵活方便，但是耗费人力且效率低下，很难适应现代化精准农业的发展要求。取土质样品化验法一般用于检测土壤氮、磷、钾和有机质等矿物质的含量，但这种方法代价昂贵、样品收集工作量大且无法反映实时土壤环境情况。固定式的土壤信息监测站通过建设单个土壤信息监测点，形成一个获取信息非常全面的全天候监测系统，但是固定式的土壤信息监测站一次性建设投入大，且固定的监测站监测得到的参数仅能代表非常小范围内的土壤信息，而且在田间设置固定式的监测站还常常会影响到大型农业机械的田间作业，所以这种固定式的土壤信息监测站采集的土壤信息参数很难有效的为实际农业生产提供精准的指导，在实际应用中很难大范围推广 。 In the existing farmland soil environment information monitoring technology, the following methods are mainly used to collect soil information: hand-held soil information collection equipment; soil sample testing method; fixed soil information monitoring station. Hand-held soil information collection equipment uses hand-held soil information collection equipment to collect soil information in the field. This method is low-cost, flexible and convenient to use, but it is labor-intensive and inefficient, and it is difficult to adapt to the development requirements of modern precision agriculture. The soil sample test method is generally used to detect the content of minerals such as soil nitrogen, phosphorus, potassium and organic matter, but this method is expensive, the workload of sample collection is heavy, and it cannot reflect the real-time soil environment. The fixed soil information monitoring station forms a very comprehensive all-weather monitoring system with comprehensive information through the construction of a single soil information monitoring point, but the one-time construction investment of the fixed soil information monitoring station is large, and the parameters obtained by the monitoring of the fixed monitoring station are only It can represent soil information in a very small range, and setting up fixed monitoring stations in the field often affects the field operations of large-scale agricultural machinery, so the soil information parameters collected by such fixed soil information monitoring stations are difficult to be effective To provide precise guidance for actual agricultural production, it is difficult to promote it on a large scale in practical applications.
发明内容 Contents of the invention
针对现有技术所存在的不足之处，本发明提供一种可移动式自组网土壤环境信息远程监测装置，能在较大范围内对土壤环境信息进行全天候多点动态监测，同时减少建设费用，从而提高了整个系统的实用性。 Aiming at the deficiencies of the existing technology, the present invention provides a mobile ad hoc network soil environment information remote monitoring device, which can perform all-weather multi-point dynamic monitoring of soil environment information in a large range, while reducing construction costs , thus improving the practicability of the whole system.
本发明为实现其目的所采取的技术方案如下： The technical scheme that the present invention takes for realizing its purpose is as follows:
本发明的移动式自组网土壤环境信息远程监测装置，包括一台或多台土壤环境信息采集节点装置、远程信息传输通道以及远程服务器，其特征在于，所述土壤环境信息采集节点装置由太阳能电池板、可移动式支架、数据采集控制箱、土壤要素传感器、卫星定位装置组成，可移动式支架为太阳能电池板和数据采集控制箱提供支撑，土壤要素传感器、卫星定位装置分别通过数据采集控制箱的可插拔接口与数据采集控制箱内的数据采集电路连通，太阳能电池板与数据采集控制箱内的太阳能转换控制电路及蓄电池连通，为整个系统提供电源；其中，所述土壤要素传感器是土壤温度传感器、土壤容积含水率传感器、土壤电导率传感器、土壤酸碱度传感器或者是其它测量土壤矿物质含量的传感器。所述的远程信息传输通道是低成本的远程无线数传模块，例如，GPRS数传模块、3G数传模块或数传电台等，它与数据采集控制箱的可插拔数据通信接口连接，从而将土壤环境信息数据发送到互联网上；所述的远程服务器运行土壤环境信息监测客户端程序，通过互联网取回节点装置采集的土壤环境信息数据，并且对有关数据进行分析、存储。 The mobile ad hoc network soil environment information remote monitoring device of the present invention includes one or more soil environment information collection node devices, remote information transmission channels and remote servers, and is characterized in that the soil environment information collection node device is powered by solar energy It is composed of battery panels, movable brackets, data acquisition control boxes, soil element sensors, and satellite positioning devices. The movable brackets provide support for solar panels and data acquisition control boxes. The soil element sensors and satellite positioning devices are controlled by data acquisition. The pluggable interface of the box is connected with the data acquisition circuit in the data acquisition control box, and the solar panel is connected with the solar energy conversion control circuit and the storage battery in the data acquisition control box to provide power for the whole system; wherein, the soil element sensor is Soil temperature sensor, soil volumetric water content sensor, soil conductivity sensor, soil pH sensor or other sensors that measure soil mineral content. The remote information transmission channel is a low-cost remote wireless data transmission module, such as a GPRS data transmission module, a 3G data transmission module or a data transmission radio station, etc., which are connected to the pluggable data communication interface of the data acquisition control box, thereby The soil environment information data is sent to the Internet; the remote server runs the soil environment information monitoring client program, retrieves the soil environment information data collected by the node device through the Internet, and analyzes and stores the relevant data.
当使用两台以上（含两台）土壤环境信息采集节点装置时，每台土壤环境信息采集节点装置上连接有信息采集节点路由器，并在其中选择一个处于中心位置的土壤环境信息采集节点装置近处安装信息汇聚节点控制器和远程无线数传模块；该信息汇聚节点控制器作为局部范围内无线数据传输网络的中心节点，它和连接在各个土壤环境信息采集节点装置上的信息采集节点路由器构成局部范围内的自组织网络。所述的处于中心位置的信息采集节点装置为近处安装的信息汇聚节点控制器和远程无线数传模块提供工作电能。为了保证局部范围无线数据传输网络内数据正确高效的路由和传输，每个移动式信息采集节点装置与最邻近的另一个信息采集节点装置之间的距离应小于1500米。 When using more than two (including two) soil environment information collection node devices, each soil environment information collection node device is connected to an information collection node router, and one of the soil environment information collection node devices in the center is selected to be near An information gathering node controller and a remote wireless data transmission module are installed at each place; the information gathering node controller serves as the central node of the wireless data transmission network within a local area, and it is composed of an information collection node router connected to each soil environment information collection node device Locally-scaled self-organizing networks. The information collection node device at the center provides working power for the information aggregation node controller and the remote wireless data transmission module installed nearby. In order to ensure correct and efficient routing and transmission of data in the local wireless data transmission network, the distance between each mobile information collection node device and the nearest other information collection node device should be less than 1500 meters.
所述信息汇聚节点控制器负责建立局部范围内的自组织网络，确定网络ID号，并为各加入网络的信息采集节点路由器分配网络内编号；每台土壤环境信息采集节点装置将采集到的土壤环境信息数据通过与其连接的信息采集节点路由器自动寻找最优的传输路径发送到信息汇聚节点控制器；信息汇聚节点控制器通过有线的数据接口，例如，RS232、RS485、USB等接口方式，和远程无线数传模块连接，然后再通过互联网，将有关数据发送到远程服务器上，供分析、存储等。 The information aggregation node controller is responsible for establishing a local self-organizing network, determining the network ID number, and assigning a number in the network to each information collection node router that joins the network; each soil environment information collection node device will collect the soil The environmental information data automatically finds the optimal transmission path through the connected information collection node router and sends it to the information aggregation node controller; the information aggregation node controller uses wired data interfaces, such as RS232, RS485, USB, etc. The wireless data transmission module is connected, and then through the Internet, the relevant data is sent to a remote server for analysis and storage.
所述数据采集控制箱内的数据采集电路由主控芯片、低功耗电源管理电路、无线数据通信接口电路、定位装置接口电路、信号处理电路、时钟模块、SD/TF卡数据存储模块和工作参数设置电路组成。所述的主控芯片是指具有较强数据处理功能的芯片，例如，STM32F系列、STC12C5A60S2等，它能够实现数据的解析、计算和分析，能够实现模拟信号到数字信号转换（ADC），能够控制数字信号的输入和输出。所述的信号处理电路是模拟信号的I/V转换、调压和主控单元A/D端口的抗干扰电路，以及传感器输出数字信号的处理电路。 The data acquisition circuit in the described data acquisition control box is composed of a main control chip, a low power consumption power management circuit, a wireless data communication interface circuit, a positioning device interface circuit, a signal processing circuit, a clock module, an SD/TF card data storage module and a working Parameter setting circuit composition. The main control chip refers to a chip with strong data processing functions, such as STM32F series, STC12C5A60S2, etc., which can realize data analysis, calculation and analysis, and can realize analog signal to digital signal conversion (ADC), and can control Input and output of digital signals. The signal processing circuit is an I/V conversion circuit for analog signals, a voltage regulation circuit, an anti-interference circuit for the A/D port of the main control unit, and a processing circuit for outputting digital signals from sensors.
所述的主控芯片通过信号处理电路与数据采集控制箱体上的各个土壤要素传感器接口连通，用于测量土壤环境信息参数；通过定位装置接口电路连接卫星定位装置，实现对农田信息采集点的地理位置的读取；在所述的主控芯片上还连接有时钟模块、SD/TF卡数据存储模块、工作参数设置电路和电源电压转换模块。时钟模块用于获取采集数据的当前时间；SD/TF卡数据存储模块用于土壤环境信息参数的本地存储备份；工作参数设置电路对数据采集电路的工作参数进行设置，设置的工作参数包括设备编号、土壤环境参数采集时间间隔、预警阀值等。 The main control chip communicates with each soil element sensor interface on the data acquisition control box through a signal processing circuit, and is used to measure soil environmental information parameters; through a positioning device interface circuit, it is connected to a satellite positioning device to realize the monitoring of farmland information collection points. The reading of the geographic location; the main control chip is also connected with a clock module, an SD/TF card data storage module, a working parameter setting circuit and a power supply voltage conversion module. The clock module is used to obtain the current time of the collected data; the SD/TF card data storage module is used for local storage and backup of soil environmental information parameters; the working parameter setting circuit sets the working parameters of the data collecting circuit, and the set working parameters include the device number , Soil environmental parameter collection time interval, early warning threshold, etc.
所述的低功耗电源管理电路实现卫星定位装置、各土壤要素传感器、信息采集节点路由器工作电压的通断管理。控制每台土壤环境信息采集节点装置在开始上电工作时为卫星定位装置供电，在获取这个土壤环境信息采集节点装置的地理位置信息后断开其电源，以降低功耗；控制每台土壤环境信息采集节点装置上各土壤要素传感器在采集土壤环境信息时刻通电工作，在空闲时间段断开其电源，以降低功耗；控制每台土壤环境信息采集节点装置在发送土壤环境信息数据时为信息采集节点路由器提供正常工作电压，在数据发送完毕后为其提供休眠工作电压，以降低功耗。所述的电源电压转换模块用于将太阳能电压转换为数据采集电路工作所需的电压。 The low power consumption power management circuit realizes the on-off management of the working voltage of the satellite positioning device, each soil element sensor, and the information collection node router. Control each soil environment information collection node device to supply power to the satellite positioning device when it starts to power on, and disconnect its power supply after obtaining the geographic location information of the soil environment information collection node device to reduce power consumption; control each soil environment information collection node device Each soil element sensor on the information collection node device is powered on when collecting soil environment information, and disconnects its power supply during idle time to reduce power consumption; control each soil environment information collection node device to send soil environment information data as information The collection node router provides normal working voltage, and provides dormant working voltage for it after the data is sent to reduce power consumption. The power supply voltage conversion module is used to convert the solar voltage into the voltage required by the data acquisition circuit.
本发明可以根据使用人的需要，将各土壤环境信息采集节点装置方便地移动到需采集的农田点进行监测，得到其所在位置的环境信息、采集时间和空间位置信息等有关数据，然后对有关数据信息进行解析、打包、存储和发送，实现土壤环境信息数据一一对应于具体的时间和空间位置，同时弥补由于移动式监测方案导致的土壤数据信息混乱的缺陷，从而能在远程服务器中显示较大范围内多个监测点的全天候农田土壤环境数据，并且通过卫星定位装置获取监测点的准确地理位置，也可在远程服务器端通过地理信息系统（GIS）以电子地图形式反映农田土壤环境信息，非常直观，便于农业生产者了解农田土壤情况。本发明使用可移动式的土壤环境信息采集装置代替现有技术中的固定监测站点，避免了固定设施对农田机械化耕作的影响，在实际应用中可以根据监测需要选择监测点，还可以根据需要将监测点随时进行迁移，不仅减少了固定监测点建设的费用，也提高了系统的实用性。另外，本发明的监测装置利用自带的太阳能电池板和蓄电池作为工作能源，为在偏僻地区开展工作提供了方便。 According to the needs of users, the present invention can conveniently move each soil environment information collection node device to the farmland point to be collected for monitoring, obtain the relevant data such as the environmental information of its location, collection time and spatial location information, and then The data information is analyzed, packaged, stored and sent to realize the one-to-one correspondence of soil environmental information data to the specific time and space location, and at the same time make up for the defect of soil data information confusion caused by the mobile monitoring scheme, so that it can be displayed on the remote server The all-weather farmland soil environment data of multiple monitoring points in a large range, and the accurate geographical location of the monitoring points can be obtained through satellite positioning devices, and the farmland soil environment information can also be reflected in the form of electronic maps through geographic information systems (GIS) on the remote server side , very intuitive, convenient for agricultural producers to understand the soil conditions of farmland. The present invention uses a mobile soil environment information collection device to replace the fixed monitoring site in the prior art, avoiding the impact of fixed facilities on farmland mechanized cultivation, and in practical applications, monitoring points can be selected according to monitoring needs, and can also be placed as needed The monitoring points can be moved at any time, which not only reduces the construction cost of fixed monitoring points, but also improves the practicability of the system. In addition, the monitoring device of the present invention uses its own solar panels and storage batteries as working energy, which provides convenience for working in remote areas.
本发明还采用自组织的无线数据传输网络将所有的土壤环境信息采集节点装置组织起来，实现各土壤环境信息采集节点装置采集的土壤环境信息数据向处于中心位置的数据汇聚节点控制器传输，这种局部范围内的数据无线网络汇聚传输，特别有利于对现场实施改进措施的指导。这种网络具有较强自组织和自修复能力，各采集节点装置之间能够独立工作，相互之间不受影响和干扰，同时该自组织网路具有非常强的扩展性，它能够便捷的添加新的数据采集节点装置进入网络，不需要额外布线或改变已经存在的采集节点装置的状态。 The present invention also adopts a self-organized wireless data transmission network to organize all the soil environment information collection node devices, so as to realize the transmission of the soil environment information data collected by each soil environment information collection node device to the data convergence node controller at the central position. A wireless network aggregation and transmission of data in a local area is especially beneficial to the guidance of on-site implementation of improvement measures. This kind of network has strong self-organizing and self-repairing capabilities, and the collection node devices can work independently without being affected and interfered with each other. At the same time, the self-organizing network has very strong scalability, and it can be easily added New data collection node devices enter the network without requiring additional wiring or changing the status of existing collection node devices.
在实际应用中，每个土壤环境信息采集节点装置可根据需要选择安装一种或几种土壤要素传感器，达到经济节约的目的。 In practical applications, each soil environment information collection node device can choose to install one or several soil element sensors according to needs, so as to achieve the purpose of economical saving.
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。 The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
附图说明 Description of drawings
图1为本发明所述移动式自组网土壤环境信息远程监测装置的一种实施例结构示意图。 Fig. 1 is a schematic structural diagram of an embodiment of a mobile ad hoc network soil environment information remote monitoring device according to the present invention.
图2为由7台土壤环境信息采集节点装置构成自组织网络的实施例结构示意图。 Fig. 2 is a schematic structural diagram of an embodiment of an ad hoc network composed of seven soil environment information collection node devices.
图3为本发明采集控制箱内的数据采集电路的设计框图。 Fig. 3 is a design block diagram of the data acquisition circuit in the acquisition control box of the present invention.
具体实施方式 Detailed ways
参见图1和图2，太阳能电池板1固定在可移动式三脚支架2的上端，三只支撑脚为折叠式，能方便合拢收起、放开。为保证每个可移动式土壤环境信息采集节点装置能够长时间可靠运行，并且兼顾土壤环境信息采集节点装置移动的便捷性，本实施例选取输出功率为10瓦、外形尺寸约为290x360x25mm的太阳能电池板，在实际应用时将电池板面朝南放置。数据采集控制箱3设置在支架中部，该数据采集控制箱的箱体前面板设有工作状态指示灯4、电源开关5和液晶面板显示器6。在箱体上表面放置有卫星定位装置8。在数据采集控制箱箱体的左侧面上有6个与箱体内的数据采集电路连通的接口，下面的4个接口分别用于与土壤要素传感器7连接。第5个接口用于和远程无线数传模块9或者信息采集节点路由器11（有多台土壤环境信息采集节点装置时）连接，信息采集节点路由器11连接有无线数据传输天线12。在箱体上表面上的卫星定位装置8插接在左侧面最上面的接口上。远程服务器10中运行土壤环境信息监测客户端程序，通过互联网取回采集节点装置采集的土壤环境信息数据，并且对有关数据进行分析、存储。
Referring to Fig. 1 and Fig. 2, the solar cell panel 1 is fixed on the upper end of the movable tripod support 2, and the three supporting legs are foldable, which can be conveniently folded up and released. In order to ensure that each mobile soil environment information collection node device can run reliably for a long time, and taking into account the convenience of moving the soil environment information collection node device, this embodiment selects a solar cell with an output power of 10 watts and an overall size of about 290x360x25mm In practical application, place the panel facing south. The data acquisition control box 3 is arranged in the middle of the bracket, and the front panel of the data acquisition control box is provided with a working
在图2所示的实施例中，将7台可移动式土壤环境信息采集节点装置（分别为节点装置A、B、C、D、E、F、G）布置在一定的范围内，每个采集节点装置上安有信息采集节点路由器11，并连接有无线数据传输天线12。为了无线数据的正确高效的路由和传输，每个采集节点装置与其最邻近的另一个采集节点装置之间距离均小于1500米。每个土壤要素传感器均埋入在农田土壤20cm深处。选择位置处于中心的节点装置C近处安装信息汇聚节点控制器13和远程无线数传模块9，该远程无线数传模块9采用GPRS和3G兼容方式进行无线数据传输。 In the embodiment shown in Figure 2, 7 mobile soil environment information collection node devices (respectively node devices A, B, C, D, E, F, G) are arranged within a certain range, each An information collection node router 11 is installed on the collection node device, and a wireless data transmission antenna 12 is connected to it. For correct and efficient routing and transmission of wireless data, the distance between each collection node device and the nearest other collection node device is less than 1500 meters. Each soil element sensor is buried in the farmland soil at a depth of 20cm. Select the node device C in the center to install the information aggregation node controller 13 and the remote wireless data transmission module 9 near the node device C. The remote wireless data transmission module 9 uses GPRS and 3G compatible methods for wireless data transmission.
参见图3，所述数据采集控制箱3内设有数据采集电路14、太阳能转换控制电路24和蓄电池25。所述的太阳能转换控制电路24通过连接太阳能电池板1和蓄电池25完成充电和放电控制，为数据采集电路14提供工作电能。所述的数据采集电路14由主控芯片15、低功耗电源管理电路16、无线数据通信接口电路17、定位装置接口电路18、信号处理电路19、时钟模块20、SD/TF卡数据存储模块21、工作参数设置电路22、电源电压转换模块23组成。所述的主控芯片15是指具有较强数据处理功能的芯片，例如，STM32F系列、STC12C5A60S2等，它能够实现数据的解析、计算和分析，并实现模拟信号到数字信号转换（ADC），能够控制数字信号的输入和输出。所述的低功耗电源管理电路16实现对卫星定位装置8、各土壤要素传感器7、信息采集节点路由器11的工作电压通断管理：控制每台土壤环境信息采集节点装置在开始上电工作时为卫星定位装置供电，在获取这个土壤环境信息采集节点装置的地理位置信息后断开其电源，以降低功耗；控制每台土壤环境信息采集节点装置上各土壤要素传感器7在采集土壤环境信息时刻通电工作，在空闲时间段断开其电源，以降低功耗；控制每台土壤环境信息采集节点装置在发送土壤环境信息数据时为信息采集节点路由器11提供正常工作电压，在数据发送完毕后为其提供休眠工作电压，以降低功耗。所述的信号处理电路19用于各土壤要素传感器输出模拟信号的I/V转换、调压和主控单元A/D端口的抗干扰，以及传感器输出数字信号的处理。所述的数据采集控制箱内的数据采集电路14通过定位装置接口电路18的输出接口27连接卫星定位装置8获取采集点的地理位置信息；通过信号处理电路19的输出接口28,29,30,31连接各土壤要素传感器7获取土壤环境信息数据；通过连接时钟模块20获取采集数据的当前时间；数据采集控制箱内的数据采集电路14对获取的地理位置信息数据、土壤环境信息数据、当前时间数据一一对应处理和打包，通过无线数据通信接口电路17的输出接口26连接到远程无线数传模块9或者信息采集节点路由器11（有多台土壤环境信息采集节点装置时），并且将打包数据写入SD/TF卡数据存储模块21，实现本地存储备份。所述的工作参数设置电路22实现对数据采集控制箱内的数据采集电路14的工作参数进行设置，设置的工作参数包括设备编号、土壤环境参数采集时间间隔、预警阀值等。所述的电源电压转换模块23用于将太阳能电压转换为数据采集控制箱内的数据采集电路14工作所需的电压。数据采集控制箱内的数据采集电路14将采集到土壤环境信息以数字信号的方式输出到液晶面板显示器6，实现土壤环境信息现场可视。
Referring to FIG. 3 , the data acquisition control box 3 is provided with a
在实际使用中，所述土壤温度和土壤水分测量可采用雷神电子TDR-5土壤温湿度传感器，其土壤温度和土壤水分以4-20mA模拟信号通过不同的信号线输出。土壤电导率测量采用锦州阳光气象科技TDR-4土壤电导率传感器，其土壤电导率输出为4-20mA模拟信号。土壤酸碱度测量采用JASP2801土壤pH值传感器。使用时，需将各土壤要素传感器埋入农田土壤20cm深处。土壤要素传感器以及主控芯片STC12C5A60S2均可由市场直接购得。 In actual use, the measurement of the soil temperature and soil moisture can use the Raytheon Electronics TDR-5 soil temperature and humidity sensor, whose soil temperature and soil moisture are output as 4-20mA analog signals through different signal lines. Soil conductivity measurement adopts Jinzhou Sunshine Meteorological Technology TDR-4 soil conductivity sensor, and its soil conductivity output is 4-20mA analog signal. Soil pH measurement uses JASP2801 soil pH sensor. When in use, each soil element sensor needs to be buried in the farmland soil at a depth of 20cm. Both the soil element sensor and the main control chip STC12C5A60S2 can be purchased directly from the market.
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Application publication date: 20130918 |