JPH07107031A - Measuring instrument with service area display function - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a measuring instrument having a service area display function for automatically measuring and recording and displaying a service area by mounting a GPS receiver on a PHP. In a measuring instrument having a radio section 2 and a reception data processing section 3 for measuring a service area of a base station communicating with a mobile station, the measuring instrument has an electric field strength and a BER (bit error occurrence rate). A calculation processing unit 4 is provided, a GPS antenna 9, a GPS receiving unit 10, a reception data processing unit 11, a memory 6 and a display unit 7 are provided, and map data and a plurality of measurement points are registered in the memory 6 in advance. The position data of the current point is received from the GPS, and if the current point is near the registered measurement point or if there is a measurement instruction, the base station automatically communicates with the electric field strength and It is characterized in that means is provided for calculating the BER, obtaining the communication limit point, displaying a map on the display unit 7, plotting the communication limit point on the map, and displaying the service area of the base station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a car telephone and a PHP.
(Personal Handyphone) The present invention relates to a measuring instrument having a service area display function for measuring the service area of a base station.

[0002]

2. Description of the Related Art A base station for a car telephone or a PHP (personal handy phone) base station where service will start in the future communicates voice or data with a mobile radio terminal by using radio waves. There is. Therefore, the strength of the radio wave is attenuated as the distance from the base station is increased, so that the communication range from the base station is limited. The area where this communication is possible is called a service area. Normally, the service area is not a concentric circle but a complicated figure due to the influence of topography and radio wave obstacles such as buildings.
In order to measure the service area of each base station, the measurer searches for the limit point while talking with the base station using the wireless terminal and plots it on the map, or uses the electric field strength meter to measure the electric field strength. The method was to measure and record the data on a map.

[0003]

However, the conventional service area confirmation method requires a lot of time because the limit point or the electric field strength is plotted and recorded on the map at each measurement, and the above-mentioned base station is required. The method of searching for the limit point while making a call is a subjective evaluation of the measurer, and if a call failure due to radio wave interference occurs, it cannot be determined whether it is due to a decrease in electric field strength or due to interference, and it is difficult to take countermeasures. There is a problem that On the other hand, when the electric field intensity meter is used, the effect of diversity cannot be obtained. Also, PH
When digital communication such as P or digital cellular is used, there is a problem that the electric field strength meter cannot synchronize with the base station so that measurement cannot be performed.

The present invention has been made in view of the above points, and in order to eliminate the above-mentioned problems, a GPS receiving device is attached to the PHP, and a service area display function for automatically measuring and displaying the service area is provided. It is an object of the present invention to provide a measuring instrument equipped with the measuring instrument.

[0005]

In order to solve the above-mentioned problems, the present invention has a radio unit 2 and a reception data processing unit 3 as shown in FIG. In a measuring instrument for measuring a viscous area, the measuring instrument is provided with an electric field strength and BER (bit error occurrence rate) calculation processing section 4,
A GPS antenna 9, a GPS receiving unit 10, a reception data processing unit 11, a memory 6 and a display unit 7 are provided, and map data and a plurality of measurement points are registered in the memory 6 in advance, and the current position from the GPS is detected. If the current position is near the registered measurement point or if there is a measurement instruction, it automatically communicates with the base station, calculates the electric field strength and BER, and determines the communication limit point. Means for displaying a map on the display unit 7, plotting the communication limit points on the map, and displaying the service area of the base station.

[0006]

The present invention is a measuring instrument used for grasping the service area of a base station, and by providing the electric field strength and BER calculation processing section 4, in addition to the conventional electric field strength, data It is possible to measure the BER.

Displaying map data and measuring points on the display,
Further, since the current position is indexed by the data from GPS and measured at the coincident point, the data is automatically measured. Therefore,
To measure the service area of the base station, it is sufficient to move around the destination with this device, and it is possible to measure even without special operating ability or knowledge.

Further, since the electronic map (map) is built in, the service area can be grasped on the spot without recording it on a paper map, so that the time required for measurement can be shortened.

Further, it is possible to centrally manage the service area of the base station by transmitting data from the measuring device to the base station or dropping it on an IC card or a floppy station.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of a measuring device having a service area display function of the present invention. As shown in the figure, the measuring instrument of the present invention comprises a PHP antenna 1, a PHP radio unit 2, a reception data processing unit 3, an electric field strength and BER calculation processing unit 4, and a control unit 5 for controlling the whole, Map data
Memory for recording data and reception data, display type touch panel 7, push button input section 8, GPS antenna 9, G
It is composed of a PS reception unit 10 and a reception data processing unit 11.

FIG. 2 is an external view of a measuring instrument having the service area display function of the present invention. The radio unit 100 shown in FIG. 1A accommodates the PHP antenna 1, the PHP radio unit 2, the GPS antenna 9 and the GPS receiving unit 10 shown in FIG. 1, and the processing unit 200 calculates the electric field strength and the BER. Processing unit 4, control unit 5, memory 6 for recording map data and reception data, display type touch panel 7, push button input unit 8
Also, a reception data processing unit 11 is stored. The wireless unit and the processing unit are fitted and used in combination as shown in FIG. A display type touch panel 7 and a push button input section 8 are attached to the surface of the processing section. An operation key is displayed on the display type touch panel 7 and a panel can be touched to communicate with a base station, or a map and a service area can be displayed as shown in FIG. The push button input unit 8 is an operation button of the measuring instrument and the display type touch panel 7.

The signal input from the PHP antenna 1 is filtered by the PHP radio section 2 to eliminate unnecessary radio waves, amplified, frequency-converted to a low frequency, and input to the reception data processing section 3. The reception data processing unit 3 reproduces the data transmitted in synchronization with the signal transmitted from the base station, and at the same time, the received signal strength is calculated by the electric field strength and BER calculation processing unit 4.
Send to. The electric field strength and BER calculation processing unit 4 digitizes the received electric field strength, calculates the BER of the received data, and sends the calculation result to the control unit 5.

On the other hand, the signal input from the GPS antenna 9 is received and amplified by the GPS receiving section 10, and the data is sent to the receiving data processing section 11. Reception data processing unit 11
Calculates the current position from the received GPS data and sends it to the control unit 5. GPS sent from the control unit 5 every moment
Field strength and BER at the current position based on position data from
Is calculated and recorded in the memory 6. Map data around the base station is stored in the memory 6 in advance, a map is displayed on the display type touch panel 7 based on the map data, and the electric field strength and BER can be displayed at the current position. I can. The measurement points are sequentially moved and the above measurement is repeated to plot the communication limit points by the electric field strength and the BER and display the service area (the area surrounded by the curve A in FIG. 3).

FIG. 4 is a flowchart showing the operation of the controller of the measuring instrument of the present invention. This flow chart is executed by the control unit 5, and the memory 6 stores in advance map data centered on the base station and a plurality of measurement points are registered. This flow chart is started by the start key displayed on the display type touch panel 7. First, the GPS receiving unit 10 and the reception data processing unit 11 are activated (step S
T1), the position data of the current position is read (step S
T2).

When the current position is at the measurement point, that is, whether it is near the pre-registered measurement point or whether there is a measurement instruction (display output instruction) from the push button input unit 8 (step ST3), the measurement is performed. If the instruction is given, the base station is called by the PHP antenna 1 and wireless communication is performed (step ST
4). The electric field strength and BER calculation processing unit 4 measures the electric field strength and BER (step ST5), and stores the position data and the electric field strength and BER data in the memory 6 (step ST6). It is determined whether or not there is a request for termination from the push button input unit 8 (step ST7), and if there is no request, the measurement points are sequentially moved from step ST2 and the measurement process is repeated.

In the step ST3, when there is a display output instruction from the push button input section 8, the communication limit point with the base station is obtained from the electric field strength at each measurement point and each BER data (step ST9). . Further, the map and the measurement points are displayed on the display type touch panel 7 from the map data stored in advance (step ST10), the communication limit points are plotted on the map and the service area is displayed (step ST11). . It is determined whether or not there is a request for termination from the push button input unit 8 (step ST7), and if there is a demand, termination processing of each part of the measuring instrument is performed (step ST8) and the processing is terminated.

Further, by operating the display type touch panel 7, this data is transmitted from the PHP antenna 1 to the base station as PHP data, or is dropped on an IC card or floppy.
It is also possible to centrally manage the service area of all base stations by stationing.

[0018]

As described in detail above, according to the present invention, the following excellent effects are expected. (1) Since the measuring instrument is provided with the electric field strength and BER calculation processing section, it is possible to measure the BER of data in addition to the conventional electric field strength. The map data and the measurement points are displayed on the display unit, and the current position is indexed by the data from the GPS and measured at the coincident point, so that the data is automatically measured.
Therefore, in order to measure the service area of the base station, it suffices to move near the destination with this device, and it is possible to measure even without special operating ability or knowledge.

(2) Further, since the electronic map is built in the inside, it is possible to carry out the survey on the spot without recording it on the paper map.
Since the screw area can be grasped, the time required for measurement can be shortened.

(3) Further, since the data can be transmitted to the base station or dropped to the IC card or floppy, the PHP base station can be centrally managed by the workstation. Furthermore, this measuring instrument is small and easy to carry.

[Brief description of drawings]

FIG. 1 is a diagram showing a block configuration of a measuring instrument having a service area display function of the present invention.

FIG. 2 is an external view of a measuring instrument having a service area display function of the present invention.

FIG. 3 is a diagram showing measurement results displayed on a measuring instrument.

FIG. 4 is a flowchart showing the operation of the control unit of the measuring instrument of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PHP antenna 2 PHP wireless unit 3 Reception data processing unit 4 Electric field intensity and BER calculation processing unit 5 Control unit 6 Memory 7 Display type touch panel 8 Push button input unit 9 GPS antenna 10 GPS receiving unit 11 Receiving data Processing unit

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Claims (1)

[Claims] 1. A measuring instrument having a radio section and a reception data processing section for measuring a service area of a base station communicating with a mobile station, wherein the measuring instrument has an electric field strength and bit error rate calculation processing section. Further, a position data receiving means for receiving the position data of the current position from the GPS, a storage section for storing the data and a display section are provided, and map data and a plurality of measurement points are provided in advance. It is registered in the storage unit and the position data of the current location is received from the position data receiving means.
Data is received and the current location is near the registered measurement point, or if there is a measurement instruction, it automatically communicates with the base station, calculates the electric field strength and bit error occurrence rate, and determines the communication limit point. A measuring instrument having a service area display function, characterized in that means for displaying a map on the display unit, plotting the communication limit points on the map, and displaying the service area of the base station are obtained. .