Patent Application
20090251314
1. Field of the Invention
This invention relates to ecological environment monitoring technology, and more particularly, to a back-end host server unit which is designed for use with a remote ecological environment monitoring system that is equipped with a front-end sensor network, such as WSN (wireless sensor network), for providing a back-end host server function for the front-end sensor network.
2. Description of Related Art
In agricultural research and management, it is an important task to monitor the ecological environment of a farmland used to cultivate crops such as fruits, rice, and vegetables. The main purpose is to collect a set of ecological data that are considered as vital factors that would significantly affect the cultivation and growth of crops on the farmland. These ecological data include, for example, number of clustered pests (such as fruit flies) per unit area, temperature, humidity, sunlight intensity, and wind speed, to name a few. Research personnel can analyze these ecological data for effective management of the farmland to achieve optimized crop production.
Traditionally, the collection of ecological data from farmlands is carried out by human labor work. For example, the number of pests per unit area is collected by firstly using a net to capture a group of pests within a certain area, and then visually counting the total number of pests being captured in the net, and finally using statistical methods to estimate the total number of pests within the entire area. All these works are carried out by human labor. For collection of climate-related ecological data (temperature, humidity, sunlight intensity, wind speed, etc.), this task is traditionally carried out by installing temperature sensors, humidity sensors, sunlight intensity sensors, wind speed sensors on the farmland; and the sensed data are visually inspected and manually recorded by the research/management personnel. The collected ecological data are then analyzed and compiled by the research personnel into written reports. These written reports are then used as references for management of the farmland to achieve optimized crop production. For example, if the number of pests per unit area is considered to be overly large, pest-killing or expelling means should be provided; if temperature/humidity is too high, conditioning means should be installed; and if the wind speed is too high, wind-shielding means should be installed.
One apparent drawback to the labor-based work for ecological data collection is that it is quite tedious, laborious, and time-consuming for the research/management personnel to carry out. Moreover, if the farmland is located at a remote site, such as a distant mountain or rural place, the research/management personnel might have to spend lots of time and cost in the travel to the farmland.
One solution to the above-mentioned problem is to design a Web-based and wireless-linked remote ecological environment monitoring system that allows remote and automatic monitoring of the ecological environment of a farmland without requiring the research/management personnel to travel to the farmland or collect the ecological data by human labor, and allows the research/management personnel to browse the ecological data conveniently by using a Web browser through the Internet. To implement such a Web-based remote monitoring system, the primary task is to design a back-end host server unit as a system component.
It is therefore an objective of this invention to provide a back-end host server unit for use as a system component to a remote ecological environment monitoring system which can be installed at a local site for providing a back-end server function for receiving and processing ecological data collected and uploaded by a front-end sensor network, so that research/management personnel can conveniently browse the remotely monitored ecological data at the local site by using a Web browser through the Internet.
The back-end host server unit according to the invention is designed for use with a remote ecological environment monitoring system that is equipped with a front-end sensor network, such as a WSN (wireless sensor network), for providing a back-end host server function for the front-end sensor network.
In architecture, the back-end host server unit according to the invention comprises: (A) a wireless communication linking module; (B) a network linking module; (C) a database management module; (D) a webpage creating module; and (E) a website hosting module; and can further optionally comprise: (F) a remote management control module.
The back-end host server unit according to the invention is characterized by the capability of using a public wireless communication system (i.e., GSM) for receiving ecological data from the front-end gateway unit and WSN system, and the capability of compiling the received ecological data into a set of webpages for posting on a website that allows the research/management personnel to browse the ecological data by using a network workstation. This feature allows the research/management personnel at the local site to conveniently gather ecological data and learn the ecological conditions of a remote site, such as farmland.
The invention can be more fully understood by reading the following detailed description of the preferred embodiments, with reference made to the accompanying drawings, wherein:
The back-end host server unit for remote ecological environment monitoring system according to the invention is disclosed in full details by way of preferred embodiments in the following with reference to the accompanying drawings.
In practice, for example, the network system 10 can be implemented with the Internet, an intranet, an extranet, or a LAN (Local Area Network) system, which allows a network workstation 11 to be linked to the back-end host server unit of the invention 50, so that the user of the network workstation 11 (i.e., research/management personnel) can use a browser program to browse the ecological data that have been uploaded by the front-end gateway unit 40 to the back-end host server unit of the invention 50.
The wireless communication system 20 can be implemented with, for example, the standard GSM (Global System for Mobile Communications) system or other type of wireless communication system, which allows the back-end host server unit of the invention 50 to communicate and exchange data with the front-end gateway unit 40 in a wireless manner using the standard SMS (Short Message Service) or GPRS (General Packet Radio Service) data format.
The sensor network system 30 can be implemented with a cable-linked or a wireless-linked type of sensor network, and preferably implemented with a WSN (Wireless Sensor Network) system. In the implementation with WSN, the sensor network system 30 is composed of a clustered array of sensor nodes 31, such as a microprocessor-based sensor device under control of the TinyOS operating system (which is a well-known operating system for WSN node devices). All the sensor nodes 31 of the WSN system 30 are wireless linked to each other by using a standard wireless communication protocol, such as Zigbee or Bluetooth. Each TinyOS-based sensor node 31 is capable of sensing temperature, humidity, and sunlight intensity in the surrounding ecological environment (alternatively, these ecological data can be acquired by using built-in sensing functions in the front-end gateway unit 40); and can be further externally coupled with a pest-counting device 32 capable of counting the number of a cluster of pests, such as fruit flies, by luring them into a trapping container and sensing the number of pests that have entered into the trapping container.
The above-mentioned pest-counting device 32 is preferably implemented with a multi-checkpoint type clustered animal counting device, whose architecture is disclosed in the applicant's another patent application entitled “MULTI-CHECKPOINT TYPE CLUSTERED ANIMAL COUNTING DEVICE”. This patent-pending multi-checkpoint type clustered animal counting device is capable of counting the number of a clustered group of pests (such as fruit flies) by luring them to enter into a trapping room and using at two checkpoints for triggering a counter. However, various other types of pest-counting devices are usable.
It is to be noted that, beside the above-mentioned application example shown in
As shown in
The wireless communication linking module 310 is used for linking the back-end host server unit of the invention 50 to the wireless communication system 20 for the back-end host server unit of the invention 50 to exchange data via the wireless communication system 20 with the front-end gateway unit 40. In the case of the wireless communication system 20 being GSM, this wireless communication linking module 310 is a GSM compliant linking module. In operation, the wireless communication linking module 310 is capable of receiving each set of ecological data via the GSM system 20 from the front-end gateway unit 40 and the WSN system 30, and further capable of transferring each set of user-issued or host-issued management control commands via the GSM system 20 to the front-end gateway unit 40 and the WSN system 30.
In practice, in the case of GSM data communication, the transmission data format used by this wireless communication linking module 310 can be, for example, the standard SMS (Short Message Service) or GPRS (General Packet Radio Service) data format.
The network linking module 320 is used for linking the back-end host server unit of the invention 50 to the network system 10 so as to allow the back-end host server unit of the invention 50 to exchange data via the network system 10 with a network workstation 11; i.e., allowing the back-end host server unit of the invention 50 to serve webpages via the network system 10 to the network workstation 11, as well as allowing the network workstation 11 to be linked to the back-end host server unit of the invention 50 and use the back-end host server unit of the invention 50 for remote control of the WSN system 30.
The database management module 330 includes a relational database 331, such as MySQL (but any type of relational database is usable), and which is capable of managing each set of ecological data uploaded from the front-end gateway unit 40 via the GSM system 20 and storing the received ecological data into the MySQL database 331. The ecological data stored in the MySQL database 331 include GPS data, temperature data, humidity data, sunlight data, wind speed data, and pest number data that were collected at the remote site by the WSN system 30 and the front-end gateway unit 40.
The webpage creating module 340 is capable of automatically producing a set of dynamic webpages based on the ecological data stored in the MySQL database 331, i.e., GPS data, temperature data, humidity data, sunlight data, wind speed data, and pest number data. The webpages can present these ecological data in various styles, such as tables, diagrams, and graphs. Moreover, the monitored area can be presented in a digitized map or satellite photo to show the locations of all the sensor nodes 31 of the WSN system 30, with each sensor node 31 being linked to its collected ecological data.
In practice, for example, the webpage creating module 340 utilizes the LabView program for building a user-machine interface and the PHP (PHP Hypertext Processor, where PHP=Personal Home Page) development tool for providing interactive functionality in the webpages for the user to search for related data. It is to be noted that, beside LabView and PHP, various other development tools and utilities can be used instead for creating the webpages.
Moreover, various methods can be used for presenting the ecological data in the webpages. One preferred method is to use a satellite photo and map to show the locations of all the sensor nodes 31 of the WSN system 30, with each sensor node 31 being linked to its collected set of ecological data (geographical position, temperature, humidity, sunlight intensity, wind speed, and pest number). The ecological data can be shown individually (i.e., specific to each sensor node 31) or collectively (i.e., specific to the entire monitored area). Moreover, the ecological data can be shown on a daily basis or a periodical basis (i.e., weekly, monthly, quarterly, and yearly). Furthermore, the webpages can further include an interactive database query and search function that allows the user to search for specific ecological data from the MySQL database 331, such as the ecological data collected at a specific location or during a specific time period.
The website hosting module 350 is capable of posting the webpages produced by the webpage creating module 340 on a specific website, so that the research/management personnel can use his/her network workstation 11 to browse the ecological data shown in these webpages (as depicted in
The remote management control module 360 is capable of performing a set of remote management control operations on the remotely-situated WSN system 30 and front-end gateway unit 40. These remote management control operations can be user-initiated or host-initiated, and the back-end host server unit of the invention 50 can issue a corresponding set of management control commands to be transmitted by the wireless communication linking module 310 and via the GSM system 20 to the front-end gateway unit 40 and the WSN system 30. In practice, these management control actions include, for example, power on/off control, clock synchronization, and sensor node initialization.
In addition, the remote management control module 360 can optionally include an optimized routing path computation function that can be used to determine an optimized routing path based on the topology of the WSN system 30 for the purpose of allowing each sensor node 31 of the WSN system 30 to transmit data to the front-end gateway unit 40 along an optimized routing path (i.e., the shortest possible path). The resulted control parameters for the optimized routing path are then transmitted via the GSM system 20 and forwarded by the front-end gateway unit 40 to each sensor node 31 of the WSN system 30.
The following is a detailed description of a practical application example of the back-end host server unit of the invention 50 in actual operation. In this application example, it is assumed that the back-end host server unit of the invention 50 is used as a system component for integration to the Web-based and wireless-linked ecological environment remote monitoring system shown in
During actual operation, each sensor node 31 of the WSN system 30 will sense its surrounding environment for acquiring a set of ecological data (i.e., temperature, humidity, sunlight intensity, wind speed, and number of clustered pests), and then transfer these data in a multihop manner to the front-end gateway unit 40 for forwarding in SMS or GPRS format via the GSM system 20 to the back-end host server unit of the invention 50.
At the local site, the back-end host server unit of the invention 50 uses the wireless communication linking module 310 to receive the uploaded ecological data in SMS/GPRS format, and then receives the original ecological data from the SMS/GPRS data stream. The retrieved ecological data (i.e., GPS data, temperature data, humidity data, sunlight data, wind speed data, and pest number data) are then handled by the database management module 330 for storage into the MySQL database 331.
The ecological data stored in the MySQL database 331 will be periodically (such as daily or weekly) processed by the webpage creating module 340 to create a set of webpages that present the ecological data (GPS data, temperature data, humidity data, sunlight data, wind speed data, and pest number data) in various styles, such as tables, diagrams, and graphs. Moreover, the monitored area can be presented in a digitized map or satellite photo to show the locations of all the sensor nodes 31 of the WSN system 30, with each sensor node 31 being linked to its collected ecological data.
The webpages created by the webpage creating module 340 are then posted by the website hosting module 350 on a specific website, so that the research/management personnel can use his/her network workstation 11 to browse the ecological data shown in these webpages (as depicted in
If the research/management personnel wants to control the operations of the sensor nodes 31 of the WSN system 30, such as power on/off control, clock synchronization, and sensor node initialization, the research/management personnel can use his/her network workstation 11 to operate the back-end host server unit of the invention 50 to issue a set of user-specified management control commands. These commands are, then transferred by the remote management control module 360 via the GSM system 20 to the front-end gateway unit 40 for control of the operations of the sensor nodes 31 of the WSN system 30 based on these commands.
In conclusion, the invention provides a back-end host server unit for remote ecological environment monitoring system which is characterized by the capability of using a public wireless communication system (i.e., GSM) for receiving ecological data from the front-end gateway unit and WSN system, and the capability of compiling the received ecological data into a set of webpages for posting on a website that allows the research/management personnel to browse the ecological data by using a network workstation. This feature allows the research/management personnel at the local site to conveniently gather ecological data and learn the ecological conditions of a remote site, such as farmland. The invention is therefore more advantageous to use than the prior art.
The invention has been described using exemplary preferred embodiments. However, it is to be understood that the scope of the invention is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements. The scope of the claims, therefore, should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
| Number | Date | Country | Kind |
|---|---|---|---|
| 097112118 | Apr 2008 | TW | national |
