KR101090757B1 - Quality control system of Digital-TRS network and its using method - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for quality measurement and management of a digital trunked radio system (TRS) network and a method of using the same. The present invention relates to a PDA (Terrestrial Trunked Radio) modem and a global positioning system (GPS) receiver. Assistant) provides a system and method that can display quality measurement data such as radiosensitivity of points that need to be monitored or controlled in the power system such as electric power IT installation site along with location information data on an electronic map.

More specifically, the present invention relates to digital TRS network quality measurement such as radio wave reception sensitivity, selective base station, neighboring base station, frequency, base station sensitivity, etc. in a wireless network quality measurement system for monitoring, controlling, and managing power system. Is equipped with a TETRA modem that enables the acquisition of wireless network quality measurement data and enables PDA communication in a digital TRS network, and an application for digital TRS network quality measurement and the collection and transmission of quality measurement data thereby. And a GPS receiver capable of receiving navigation data from a GPS satellite and providing location information data, and a PDA including the TETRA modem, and quality measurement data and location information data collected from the PDA through a wired or wireless communication network. Quality measurement data storage unit to receive and store, and analyze the quality measurement data and location information data separately Stored quality data analysis that can be stored consists of a digital TRS network quality control system including a web server, which comprises a.

TETRA modem, digital TRS network, GPS, electronic map, wireless network, quality, communication test, location information

Description

Quality control system of Digital-TRS network and its using method}

The present invention relates to a system for quality measurement and management of a digital TRS network and a method of using the same in a wireless network quality measurement system for monitoring, controlling, and managing a power system, comprising: a PDA including a TETRA modem and a GPS receiver; It provides a system and method that can display the quality measurement data such as the radiosensitivity of the point that needs to be monitored or controlled in the power system on the electronic map with the location information data.

Terrestrial Trunked Radio (TETRA) is a European digital TRS standard that is developed by digitalizing the second generation of public access mobile radio (PAMR) services following the first generation analog TRS, Private / Professional Mobile Radio (PMR). TETRA was chosen.

The TETRA standard, promoted by ETSI, is a standard for digital TRS for the telecommunications market of specialized fields called Private Mobile Radio (PMR) and Public Access Mobile Radio (PAMR) .It is now standardized and approved by European countries. The InterSystem Interface (ISI) has also been completed to enable interconnection with telecommunication networks (eg C2000 in the Netherlands and ASTRID in Belgium).

Trunked Radio System (TRS) is a wireless communication system in which multiple subscribers share a number of frequencies in order to increase the efficiency of frequency usage. TRS is a communication service that is suitable for business use mainly because of various types of services and low price compared to vehicle phones or mobile phones which are widely used. The TRS system is classified according to the frequency band used and the transmission / reception channel separation, and can be classified into the analog system and the digital system. The biggest feature of the digital TRS system is a large number of group and command communication systems.

In other words, TRS can perform functions such as wireless data, two-way wireless calling as well as a mobile phone with one terminal, and has the advantage of using various additional services. In particular, if the TRS is connected to the public network (PSTN), it can function as a mobile phone.

Accordingly, TRS is suitable for large transportation companies, taxi companies, large field management, distribution business, and security services. The TRS service is similar to a walkie-talkie called a walkie-talkie in terms of service. However, the TRS is up to 50 km, although the range of the call is mainly about 2 km. It also has the advantage of no interference and excellent security. In addition, TRS is a frequency channel that allows not only one-to-one individual communication but also more than 130 people to talk simultaneously. In other words, group call is the biggest advantage of TRS. Further, the base station and the terminal can be miniaturized and economicized, the frequency use distance can be shortened, and the frequency use efficiency can be improved by narrowing the bandwidth in the future.

Because of these advantages, the TRS generates demands from various tiers, not only in the telecommunications and public sectors, but also in small businesses with specific purposes, but the radio resources to cope with these are extremely limited. To solve this problem, it is necessary to redistribute existing radio resources from a new perspective, and to establish flexible and organic policies in areas such as the expansion of available resources through the introduction of new technologies and the development of new frequency bands in response to the development of wireless technologies. do.

Global positioning system (GPS) is a system that can be located anywhere in the world by 24 GPS satellites orbiting the earth at an altitude of about 20,000 kilometers. GPS uses radio waves in the 1.5 GHz band and has a coordination center called Control Station on the ground to collect information from GPS satellites and to synchronize GPS satellites with the transmitted and received signals.

GPS satellites are satellites used to locate mobile communication terminals in GPS. GPS satellites consist of 24 satellites that continuously transmit the navigation data necessary for position calculation to a mobile communication terminal through a carrier wave, of which 21 are used for navigation and 3 satellites are reserved. Is placed.

In general, triangulation is used as a method for identifying a location using GPS. GPS positioning requires a total of four GPS satellites, including three satellites for triangulation and one observation satellite to measure time error.

Since GPS already knows the position of each of the three satellites, it measures the distance between the satellite and the GPS receiver. The distance from the satellite to the GPS receiver takes advantage of the difference between the time when the radio waves are sent from the satellite and the time when the GPS receiver receives the radio waves. The time difference thus obtained is called propagation propagation time, and the distance can be calculated by multiplying the propagation propagation time by the speed of light.

The use of such a GPS system to obtain location information has been used by mobile phones, etc. However, there is a problem of paying expensive communication costs, so a method of obtaining location information when measuring wireless network quality at a low communication cost is required. It is required.

In general, as the demand for wireless data communication increases, various wireless communication technologies with technical standards necessary for transmitting and receiving data are being developed to take advantage of and extend the advantages of existing analog / digital wireless technologies. Wireless terminals are commercially available. For example, a method of obtaining location information using a personal digital assistant (PDA) having a portable computer function, a fax function, and an electronic notebook function is required.

In other words, there is a demand for a system capable of continuously measuring a wireless communication network at a low cost in a wireless communication network measuring system at a point where monitoring, control, and management are required in a power system.

Conventionally, there was a method of measuring quality by fixedly installing a mobile communication terminal on a site with power facilities, but this requires a large number of mobile communication terminals, which is expensive and difficult to cover a detailed wireless network. there was.

In addition, there was a method of mounting a DC converter, a laptop, a GPS, an application, a measuring device, and the like in a vehicle, and measuring the quality of a wireless network. there was.

Therefore, it is possible to construct a wireless network quality measurement system at low cost, to ensure the mobility of the measurer to cover detailed wireless network measurement, and to ensure the stability of wireless network quality management due to periodic and continuous measurement. Required.

Therefore, in using a digital TRS network that does not have to pay a separate communication cost except for a subscription fee, a method of measuring the quality of a wireless network using a PDA equipped with a GPS system is required.

The present invention relates to a system for measuring and managing a quality of a digital TRS network and a method of using the same in a wireless network quality measuring system for monitoring, controlling, and managing a power system. And stable management of efficient communication means for monitoring, controlling, and managing power IT facilities by improving the problems of management system, acquiring quality measurement data at low cost, and providing simpler and more efficient digital TRS network quality measurement and management system. It is for operation.

In order to achieve the above object, the present invention provides a digital TRS network quality measurement, such as radio wave reception sensitivity, selective base station, neighboring base station, frequency, base station sensitivity in a wireless network quality measurement system for monitoring, control, and management of power system TETRA (Terrestrial Trunked Radio) modem and digital TRS that enable the acquisition of wireless network quality measurement data by providing numerical values and enable communication of PDA (Personal Digital Assistant) in digital TRS (Trunked Radio system) network Equipped with an application for network quality measurement and the collection and transmission of quality measurement data, and includes a GPS (global positioning system) receiving unit for receiving the navigation data from the GPS satellite to provide the location information data and the TETRA modem The PDA receives the quality measurement data and the location information data collected from the PDA through a wired or wireless communication network. Quality measurement data, characterized in that it comprises a web server comprising a storage unit, and a quality measurement data and the location information by analyzing the stored data that can be stored separately from the data quality analysis unit for.

The present invention includes a PDA including a TETRA modem that provides numerical values for digital TRS network quality measurement, such as radio wave reception sensitivity, so that wireless network quality measurement data can be obtained, and a PDA can communicate in a digital TRS network. do.

TETRA is a D-TRS (Digital Trunked Radio System) standard developed by the European Telecommunications Standards Institute, ETSI. Currently, TETRA has been selected as the power IT wireless backbone network.

The TRS (Trunked Radio system) system consists of several groups, each group consisting of terminals of users with similar purposes related to the work content. In this way, users can be grouped to maximize the efficiency of the system and frequency by jointly using the designated radio channel.

According to the characteristics of TRS according to the comparison between TRS service and other communication services, mobile phone network can only communicate one-to-one, whereas TRS enables one-to-one and one-to-many communication, and subscribers in a group can call simultaneously and talk time. By adjusting, it can be used by many users within a limited time, and emergency calls can be made by prioritizing calls. It is most efficient in the way that the limited frequency resource can be shared to many within the time limit.

In addition to high call access rates, TRS services are also available for PSTN and connectivity services, vehicle location tracking services, voice and simple mail services, and simple data transmission services. In addition, by changing the frequency during the call and assigning identification numbers for each terminal, the security is excellent, and the composition and change of the communication network are easy even by the random operation of the subscriber, so that a single terminal can provide a complex service such as voice, data, and fax. Can be.

In addition, the service types and prices are lower than those of mobile phones, so they are suitable for the mobile communication business such as transportation, delivery, construction, distribution, etc., and can be used for disaster recovery sites and outdoor event sites that do not have a communication network. As one of the biggest advantages, TRS service has a service radius of 20-50km per base station, which is wider than existing mobile phones or business radios.

TRS is a system that greatly improves the performance of existing radios or walkie-talkies. The service provider can set up a wireless relay in the highlands so that many subscribers, such as businesses and individuals, can share multiple frequencies and communicate with each other. It is a communication method. Basically, the service area with a communication distance of 20 ~ 50Km uses a very wide cell system, and group communication, selective communication, simultaneous notification, and individual call can be made between the command station and the mobile station or mobile station. It can be used as a voice communication, low-speed data, and fax transmission, and has the system features suitable for the corporate logistics communication network.

The TETRA method is a technology of digital TRS communication method that is one step up from the conventional analog TRS method, and is a method that enables mutual wireless communication. The present invention provides a TETRA wireless communication system through such a dedicated network. By using a modem and combined with the various sensor devices as described above, it is possible to easily use without a communication charge to a remote location.

The main features of TRS are as follows.

① Subscriber can use any channel in relay station.

② Occupies the channel only during the actual call, and the call quality is good and strong against noise and interference by using UHF band.

③ Because of its excellent call security, no separate firearms are needed.

④ Calling by channel reservation is possible automatically even in the event of congestion due to introduction of queue system.

⑤ It is possible to process voice and data in the same channel without additional equipment so that voice and data communication is possible with one radio.

⑥ The user pays less because the subscribers in each other group share the relay station.

⑦ It is easy to expand the network, so it is suitable to build the system infrastructure.

⑧ It is easy to introduce as a means of public communication with low equipment cost, usage fee, and additional expenses. Logistics costs can be minimized in connection with additional expenses such as transportation, manufacturing, service, construction sites, security companies and coastal ships.

⑨ It is economical because it is strong in high speed communication and can provide wide area communication.

⑩ Because of the fast connection speed, manganese calls can be made wherever the subscriber moves.

PDA (Personal Digital Assistant) is a kind of portable computer. It is a small computer with calculation function, information storage and retrieval function. Since it is small and light, it is convenient to carry, so it is convenient to use for monitoring / control of power IT facilities, and it is easy to input or search for various information because it uses a stylus pen and a touch LCD. Recently, it is used as a device that can utilize all the functions of the wireless Internet in combination with the wireless transmission and reception functions.

Terrestrial Trunked Radio (TETRA) modem is a PDA that plays a role of enabling voice communication and data communication using a digital TRS network. The TETRA modem may include a TETRA gateway for communication with heterogeneous communication networks other than the digital TRS network.

When a PDA equipped with a TETRA modem is used, voice and data communication is possible to subscribers of the group using the base station, and it is advantageous in terms of cost because it does not pay a separate communication fee. In addition, the TETRA modem can provide a numerical value for the quality environment of the digital TRS network, such as radio reception sensitivity, such quality measurement data can be stored in the data storage of the PDA.

In the present invention, the quality measurement data refers to data including radio wave reception sensitivity, selected base station, neighboring base station, frequency, base station sensitivity, and the like.

The present invention includes a PDA equipped with an application for digital TRS network quality measurement and the collection and transmission of quality measurement data thereby.

In general, a PDA should use a dedicated application program. In the present invention, an application developed for digital TRS network quality measurement and collection and transmission of quality measurement data may be loaded.

The application may be preloaded in a PDA product release step, and may be connected to a personal digital assistant (PDA) with a PC sync function to download and install the application from a web server via a wired communication network.

In order to download the application directly from a web server using a wireless communication network, a WAP (Wireless Application Protocol) allows a user of a wireless communication device to easily access and transmit information and services through a computer network system. need.

The PDA should be equipped with a browser that can connect to a web server via a wireless Internet network and send and receive data using a predetermined protocol. Such a browser includes a WAP browser, a mobile browser (ME) browser, and an I. -mode, etc., but is not limited thereto.

WAP technology can be included in the operating systems of most wireless communications devices, including PalmOS, EPOC, Windows CE, FLEXOS, OS / 9 and JavaOS.

Therefore, a PDA equipped with a WAP browser can transmit quality measurement data and location information data directly to a web server through a wireless Internet network, and also transmit quality measurement data, location information data and quality analysis data stored in the web server to the PDA. Can be received and used.

As the data can be transmitted and received in both directions, work time can be shortened and work efficiency can be improved, and quality analysis data can be calculated by classifying the quality measurement period of the TRS network, and quality analysis data can be compared by period. Do.

The present invention includes a GPS receiver capable of receiving navigation data from a GPS satellite and providing location information.

In the present invention, the GPS receiver receives a GPS radio signal from one or more GPS satellites, extracts navigation data included in the GPS radio signal, and transmits the GPS data to a server for determining a location through a wireless communication network. , GPS chipset, and the like.

The system for locating PDA using GPS includes GPS satellite, PDA including GPS receiver, Base Transceiver Station (BTS), Base Station Controller (BSC), Mobile Switching Center (MSC) ) And a server for determining the location.

The location information can be obtained by calculating the longitude and latitude coordinates of the PDA using navigation data transmitted from the PDA via a wireless network. In addition, the server for determining the location may transmit ancillary data to assist in determining the location of the PDA, and calculate the distance between the GPS satellite and the mobile communication terminal.

The location information obtained through this process may be transmitted to the PDA from the server for determining the location, and may be stored in the form of location information data in the data storage unit of the PDA.

The present invention provides a quality measurement data storage unit for receiving and storing the quality measurement data and location information data collected from the PDA through a wired or wireless communication network, and quality analysis data that can be separately stored by analyzing the quality measurement data and location information data. It includes a web server including a storage unit.

The PDA and the web server can be connected by using a wireless communication network or a wired communication network. The wireless communication function of the PDA connects to the Internet network wirelessly to access the web server or the PC using the Sync function of the Internet. You can connect PDA to web server by wire to PC connected by wire and network.

When the PDA and the web server are connected, the quality measurement data and the location information data stored in the data storage unit of the PDA can be transmitted to the web server by the dedicated application of the PDA, and the quality measurement data and the location information data are measured by the web server. It can be stored in the data storage.

Such quality measurement data and location information data can be derived as a single data by combining numerical values such as location information data and radio wave reception sensitivity by an application related to quality analysis stored in a web server. Can be aggregated into quality analysis data.

The quality analysis data may be stored in the quality analysis data storage unit of the web server, and may be classified and displayed according to classification criteria such as color on the electronic map provided by the electronic map providing server.

The present invention can provide an electronic map so that the location information data and the quality measurement data obtained from the PDA can be classified and displayed according to the measurement position on the electronic map and stored in the quality analysis data storage unit of the web server. It may further include an electronic map providing server.

The electronic map providing server can electronically store maps of not only South Korea but also the world, and can classify and store maps according to administrative boundaries or natural boundaries. In addition, the electronic map provided by the electronic map providing server may be freely enlarged or reduced, and may be provided as a 3D stereoscopic image.

The electronic map provided by the electronic map providing server may be downloaded to the electronic map download unit of the web server, and the wireless network quality may be indicated on the electronic map using the quality analysis data of the quality analysis data storage unit of the web server.

For example, the digital TRS network in the area where the power equipment is installed by finding the location where the wireless network quality is measured on the electronic map and displaying the numerical value of the wireless network quality measurement such as radio reception sensitivity by color and storing it. The radio wave environment can be grasped at a glance.

Data in the form of quality analysis data combined on the electronic map may be stored in the quality analysis data storage unit, and a measurer or the like may download it from a web server using a PDA and use it for work.

In the present invention, the web server, if the application is not equipped with a collection and transmission of quality measurement data in the PDA, can store and transmit the application to download and mount the application via a wired or wireless communication network The application storage unit may further include.

In order to measure the quality of the radio wave environment of the digital TRS network, the PDA should use a dedicated application. If the dedicated application is not already installed in the PDA, the application should be downloaded using a wired / wireless communication network.

Therefore, the application stored in the application storage unit of the web server in advance can be downloaded by directly connecting to the web server through the PDA wireless communication function, or connected to the PDA and PC using the PC Sync function, By connecting and downloading and executing the application, the quality measurement of the TRS network can be performed.

In the present invention, the digital TRS network quality management method, in the wireless network quality measurement system for monitoring, control, and management of the power system, equipped with an application that allows the measurer to collect and transmit digital TRS network quality measurement data, GPS satellites Measuring the quality of the digital TRS network using a PDA including a GPS receiver capable of receiving navigation data from the GPS receiver and a TETRA modem capable of measuring the quality of the digital TRS network; Acquiring position information data of a place where the quality of the digital TRS network is measured using a PDA including the GPS receiver; and obtaining quality measurement data measured by the TETRA modem and position information data by the GPS receiver. Storing the data storage unit of the PDA by the application; Connecting through a communication network, transmitting the quality measurement data and the location information data stored in the PDA to the quality measurement data storage unit of the web server by driving the application, and storing the previously stored quality measurement in the web server. And storing the quality analysis data obtained by analyzing the data and the location information data in the quality analysis data storage unit of the web server.

The present invention receives an electronic map from an electronic map providing server, classifies and displays the quality analysis data information analyzed by the wireless network quality measurement data storage and analysis server according to the measurement position on the electronic map and analyzes the quality of the web server. The method may further include storing the data in the data storage unit.

The present invention further includes the step of the measurer connecting the PDA and the web server to a wired or wireless communication network, and downloading and installing the application from the application storage unit included in the web server to the application storage unit of the PDA. You can do

According to the present invention, since voice and data communication are possible using a digital TRS network without a separate communication cost, it is possible to periodically and continuously measure the quality of the digital TRS network, and to periodically identify the shadow area and manage the optimal call radius. Becomes possible.

In addition, according to the present invention, since a PDA equipped with a GPS receiver can be used, a quality measuring system can be configured at a lower cost than an expensive measuring instrument, and the quality can be measured while the measurer moves due to the high portability of the PDA. As a result, work time and work efficiency are improved.

By using the electronic map provided by the electronic map providing server, quality analysis data and the like are classified and displayed on the electronic map according to the classification criteria such as color, so that the radio environment can be observed at a glance, thereby improving stability in digital TRS network operation. to provide.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a block diagram of a digital TRS network quality management system including a PDA, a web server, and a map providing server according to an embodiment of the present invention.

The PDA 110 includes a terrestrial trunked radio (TETRA) modem and a global positioning system (GPS) receiver, so that quality measurement data can be obtained by measuring the quality of the digital TRS network in an area where power IT facilities are installed. In addition, the PDA and the Internet network may be wirelessly connected to transmit data. Alternatively, the PDA 110 and the PC 140 may be synchronized to each other to connect to the Internet network by wire to transmit data to the web server 120.

In addition, by downloading the electronic map from the map providing server 130 to the web server 120 can display the quality analysis data on the electronic map, there is an advantage that can grasp the radio wave environment at a glance.

2 is a block diagram of a PDA including a GPS receiver and a TETRA modem according to an embodiment of the present invention.

The PDA 200 is an input unit such as a transmitter / receiver 210 and a keyboard that enable communication with a digital TRS network using the TERTA modem 250 or a connection with the Internet network using a wired / wireless communication network. And a display unit 230 for displaying data 220 and the like on the screen.

In addition, the PDA 200 receives a GPS radio wave signal from one or more GPS satellites, extracts navigation data included in the GPS radio wave signal, and transmits the GPS data to a server for determining a location through a wireless communication network. And a GPS receiver 240 including a GPS chipset.

The PDA 200 may include a TETRA modem 250 that enables communication through a digital TRS network, and the TETRA modem 250 may include a TETRA gateway for enabling communication with a heterogeneous communication network other than the digital TRS network. have.

Through the TETRA modem 250 of the PDA 200, it is possible to obtain quality measurement data such as radio wave reception sensitivity. Such quality measurement data is stored in the data storage unit 260 and collectively through wired / wireless communication networks. Can be uploaded to a web server. In addition, the location information by the GPS receiver is also stored in the data storage unit 260, it may be uploaded to the web server.

Quality measurement data and the like stored in the PDA 200 can be uploaded to a web server only by running a dedicated application, which is mounted in the application storage unit 270 of the PDA in advance in the product release step of the PDA or the application storage unit of the web server ( 330 may be downloaded and installed and used.

3 is a block diagram of a web server according to an embodiment of the present invention.

The web server 300 may include a quality measurement data storage 310, a quality analysis data storage 320, an application storage 330, an electronic map downloader 340, and the like.

The quality measurement data storage unit 310 serves to store quality measurement data and location information stored in the data storage unit 260 of the PDA when they are transmitted through a wired / wireless communication network by an application of the PDA.

The quality analysis data storage unit 320 stores the quality analysis data derived by combining quality measurement data and location information by an application related to quality analysis stored in the application storage unit 330 of the web server into a single file. It plays a role.

The application storage unit 330 stores and transmits a dedicated application required for a PDA or stores an application required when deriving quality analysis data.

The electronic map download unit 340 downloads an electronic map from the electronic map providing server and provides the electronic map to the quality analysis data storage unit 320 using an application related to the electronic map display stored in the application storage unit 330. In addition, by combining the quality analysis data and the electronic map, that is, the location information and the quality measurement data can be classified by color according to the classification criteria such as reception sensitivity and displayed on the electronic map.

4 is an exemplary view showing test communication between a PDA and a base station using a digital TRS network according to an embodiment of the present invention.

Using the PDA 410 equipped with the TETRA modem in the power IT installation site 430, it is possible to perform a test communication with the base station 420 through the digital TRS network, and at this time, the radio wave reception sensitivity and the like are measured and You can save it to a PDA together.

5 is an exemplary diagram illustrating a web server and a map providing server connected via a wired communication network after connecting a PDA and a PC by using a Sync function of a PC according to an embodiment of the present invention.

By connecting the PDA 510 directly to the PC 520 through the Sync function of the PC 520, the quality measurement data and location information stored by the PDA 510 can be transmitted to the web server 530 through the wired Internet network. have. The electronic map may be provided from the map providing server 540 on the web server 530 and the quality analysis data may be displayed on the electronic map by classification criteria.

6 is an exemplary view illustrating a process of obtaining location information by a GPS system according to an embodiment of the present invention.

7 is a flowchart illustrating a step-by-step classification of a digital TRS network quality management method according to an embodiment of the present invention.

In a power IT installation site, a measurer can measure the radio wave reception sensitivity of a digital TRS network using a PDA. Quality measurement is possible only if the PDA is equipped with a dedicated application that can collect and transmit quality measurement data.

The measurer checks whether the dedicated application is installed in the PDA (s701), and if the dedicated application is not mounted, the application should be downloaded and installed from the application storage of the web server (s702).

Through this process, it is possible to measure the radio wave reception sensitivity of the digital TRS network at the power IT installation site with a PDA equipped with a dedicated application (s702). These values are stored in the data storage of the PDA as quality measurement data. (s704)

The measurer can obtain the location information of the quality measurement using the GPS system (s703), and the location information data is also stored in the data storage of the PDA (s704).

That is, after acquiring the quality measurement data and the location information data, the step of storing the data in the PDA data storage unit by the operator's keyboard operation is performed.

The quality measurement data and the location information data are connected to the web server and stored in the quality measurement data storage unit of the web server in a batch. The PDA can be connected to the web server directly through the internet network or the sync function of the PC can be performed. Directly connecting the PC and PDA through the wired step to connect to the web server via the Internet network (s705).

When the PDA and the web server are connected, the quality measurement data and the location information data are transmitted to the quality measurement data storage unit of the web server and stored by the dedicated application of the PDA (s706).

The quality measurement data and location information data stored in the web server's quality measurement data storage are automatically combined with the quality measurement data and the location information data by the application required for quality analysis stored in the application storage of the web server. This quality analysis data can be derived and stored in the quality analysis data storage. (s707)

The quality analysis data may be classified and displayed according to color on the electronic map provided from the electronic map providing server according to the position and the reception sensitivity, and the quality analysis data combined with the electronic map may be stored in the quality analysis data storage unit. (S708)

Quality measurement data, location information data, quality analysis data, and electronic maps stored in a web server can be directly downloaded wirelessly by a wireless application protocol (WAP) on a measurer's PDA and used for work.

The present invention has been described above in connection with specific embodiments of the present invention, but this is only an example and the present invention is not limited thereto. Those skilled in the art can change or modify the described embodiments without departing from the scope of the present invention, and within the equivalent scope of the technical spirit of the present invention and the claims to be described below. Various modifications and variations are possible.

1 is a block diagram of a digital TRS network quality management system including a PDA, a web server, a map providing server according to an embodiment of the present invention.

2 is a block diagram of a PDA including a GPS receiver and a TETRA modem according to an embodiment of the present invention.

3 is a block diagram of a web server according to an embodiment of the present invention.

4 is an exemplary view showing test communication between a PDA and a base station using a digital TRS network according to an embodiment of the present invention.

5 is an exemplary view showing a web server and a map providing server through a wired network after connecting a PDA and a PC by using a Sync function of a PC according to an embodiment of the present invention.

6 is an exemplary view showing a process of obtaining location information by a GPS system according to an embodiment of the present invention.

7 is a flow chart illustrating the step-by-step classification of the digital TRS network quality management method according to an embodiment of the present invention.

{Description of major symbols in the drawing}

PDA: 110, 200, 410, 510

Web server: 120, 300, 530

Map server: 130, 540

PC: 140, 520

GPS receiver: 240

TETRA Modem: 250

Application storage: 270, 330

Quality measurement data storage: 310

Quality Analysis Data Storage: 320

Electronic map download unit: 340

Claims (6)

In the wireless network quality control system for monitoring, controlling, and managing the power system, To provide digital TRS network quality measurement such as radio wave reception sensitivity, select base station, neighboring base station, frequency, base station sensitivity, etc., so that wireless network quality measurement data can be obtained and PDA can communicate in digital TRS network. A PDA having a TETRA modem and a digital TRS network quality measurement and an application for collecting and transmitting the quality measurement data and receiving GPS data from a GPS satellite to provide location information data; And A quality measurement data storage unit for receiving and storing the quality measurement data and location information data collected by the PDA through a wired or wireless communication network, and a quality analysis data storage unit for analyzing and storing the quality measurement data and location information data separately. A web server including; Digital TRS network quality management system comprising a. The method of claim 1, An electronic map providing server capable of providing an electronic map so that location information data and quality measurement data obtained from the PDA can be classified and displayed according to the measurement position on the electronic map and stored in the quality analysis data storage unit of the web server. Digital TRS network quality management system further comprising a. The method of claim 1, The web server stores an application for storing and transmitting the application to download and mount the application through a wired communication network or a wireless communication network when an application that collects and transmits quality measurement data is not installed in the PDA. Digital TRS network quality management system further comprises a wealth. In the wireless network quality control method for monitoring, controlling, and managing the power system, TETRA modem equipped with an application that allows a measurer to collect and transmit digital TRS network quality measurement data, and to enable GPS receivers and digital TRS network quality measurement to receive location data by receiving navigation data from GPS satellites. Measuring the quality of the digital TRS network using a PDA comprising a; Obtaining, by the measurer, location information data of a place where the quality of the digital TRS network is measured by using a PDA including the GPS receiver; Storing quality measurement data measured by the TETRA modem and location information data by the GPS receiver by a data storage unit of the PDA by the application; A measurer connecting the PDA and the web server through a wired or wireless communication network; Transmitting and storing the quality measurement data and the location information data stored in the PDA by the driving of the application; And Storing, in the web server, quality analysis data obtained by analyzing previously stored quality measurement data and location information data in a quality analysis data storage unit of the web server; Digital TRS network quality management method comprising a. The method of claim 4, wherein Receives an electronic map from an electronic map providing server, classifies and displays the quality analysis data information analyzed by the wireless network quality measurement data storage and analysis server according to the measurement position on the electronic map and displays it on the quality analysis data storage unit of the web server. Digital TRS network quality control method further comprising the step of storing. The method of claim 4, wherein And a measurer connecting the PDA and the web server to a wired communication network or a wireless communication network, and downloading and installing the application from the application storage unit included in the web server to the application storage unit of the PDA. Network quality control method.

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