KR0175500B1 - Radio wave monitoring method using high frequency receiver - Google Patents

Abstract

The present invention relates to a radio wave monitoring method using a high frequency (HF) receiver.

The present invention consists of an operating system having a GPIB card, an E1500 receiver, and an operating system each having GPIB interface equipment connected in parallel to the E1500 receivers for communicating with the operating computer via a GPIB cable.

With this configuration, after initializing to set the GPIB card and the E1500 receivers into the radio monitoring operation mode, the GPIB card according to the operation status of the GPIB interface device when the operator requests the radio computer to perform the radio monitoring for the corresponding E1500 receiver. Retrieves the flag state of.

If the flag status of the GPIB card is set by this search, the data of the GPIB interface device is read and radio wave monitoring is performed.

In addition, the operator of the operating computer checks whether there is data to be transmitted to the constant E1500 receiver, and if there is data to be transmitted, the operator sets the frequency to the constant E1500 receiver or displays the operating status of all the E1500 receivers.

Description

Radio wave monitoring method using high frequency (HF) receiver

1 is a system configuration diagram illustrating an operation state between a GPIB interface device and receivers and an operation computer.

2A through 2C are flowcharts illustrating a method of performing radio wave monitoring by controlling E1500 receivers in a short range according to the present invention.

* Explanation of symbols for main parts of the drawings

100: E1500 receiver 200: operating computer

300: GPIB (General Purpose Interface Bus) interface equipment

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio wave monitoring method using a high frequency receiver, and more particularly to a method for efficiently performing radio wave monitoring by controlling E1500 receivers, which are HF (High Frequency) band receivers, in a short range.

The expansion of services related to wireless communication requires the use of more various frequencies, but since the available frequency resources are limited, the efficient use of frequency resources is emphasized.

As one method for efficient use of limited frequency resources, there is a method of increasing the availability of wireless communication through the establishment of radio wave use order.

This method is mainly performed by radio monitoring, and the current efficiency of radio monitoring is low.

As part of the method to increase the efficiency of radio monitoring, the automation of the E1500 receiver, which is an eavesdropping receiver in the HF band, has been recently implemented.

The E1500 receivers are installed and operated at the central radio station and the radio monitoring stations of each country.

Typically, about 10 radio wave monitoring stations are installed and operated, and frequency bands are equally allocated to the receivers, and each operator operates one receiver.

For utility, several E1500 receivers that perform these common tasks work in conjunction with a computer that monitors radio waves.

The control method of the operating computer is to use the IEEE 488 or GPIB (General Purpose Interface Bus) method, the international high-speed short-range equipment control standard method.

However, the conventional method of performing short range control of the E1500 receivers has the following problems.

First, there is no program for near field control of the E1500 receivers.

Second, the short range control program of the E1500 receiver cannot control the GPIB interface equipment connected to the E1500 receiver using the GPIB control command using the standard protocol.

Third, the function of the operation program that can be used in accordance with the radio monitoring operation environment is not set.

Under these technical backgrounds, the current radio monitoring system enables the short range control of multiple sets even in an environment where the GPIB interface and the E1500 receiver are in one set, and the function of allowing the receiver to be used smoothly in the radio monitoring operation environment. To be offered in the program.

Accordingly, an object of the present invention is to provide a radio wave monitoring method using a high frequency (HF) receiver capable of efficiently processing a radio wave monitoring task by controlling the E1500 receivers, which are HF band receivers, in a short distance.

A feature of the present invention for achieving the above object is to communicate with an operating computer having a GPIB card, E1500 receivers having different addresses to intercept high frequency (HF) bands, and a GPIB cable with the operating computer. In the method comprising the GPIB interface equipment connected to each of the E1500 receivers in parallel, by controlling the E1500 receivers in a short distance to monitor the radio wave,

A first process of initializing the GPIB card and the E1500 receivers to set a radio wave monitoring operation mode; and after the initialization of the first process is performed, an operator requests the operating computer to perform radio wave monitoring of the corresponding E1500 receiver. A second step of retrieving the flag state of the GPIB card according to the operation state of the GPIB interface device, and a third step of reading data of the GPIB interface device when the flag state of the GPIB card is set by the retrieval of the second step; And a fourth step of checking whether there is data to be transmitted to a certain E1500 receiver when the flag state of the GPIB card is not set by the search of the second step, and by checking the fourth step If there is data to be transmitted, the operator may set the frequency on a certain E1500 receiver or the entire E1500 receiver. Made up of the fifth process of displaying the status for, it is possible to efficiently perform the radio wave monitoring work to control the short-range radio frequency receiver.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a system configuration diagram for explaining the operating state between the E1500 receivers installed in the central radio station and the operating computer.

As shown in FIG. 1, in order to facilitate communication between the E1500 receivers 100 and the operation computer 200 in a GPIB manner, GPIB interface devices 300 are connected to each other by a GPIB cable.

The GPIB method is a method used by the computer 200 for short-range control of devices at high speed, and various devices are connected in parallel with different addresses.

Although not shown, the GPIB interface device 300 has several buttons.

One is a button indicating an on-line state of the interface device 300, and the other is a button having a different propagation type.

The operator listens to the voice content of the E1500 receiver connected to the GPIB interface device 300 and determines the radio wave type to perform radio wave monitoring by pressing a button on the GPIB interface device 300.

The operation computer 200 installs a GPIB card and a control program for controlling the card, and is used in the radio wave monitoring operation program.

Next, a method of performing a high frequency band radio wave monitoring service by controlling the E1500 receivers in a short range according to the present invention will be described with reference to the flowcharts of FIGS. 2A to 2C.

Referring to FIG. 2A, a process of resetting the GPIB card and the E1500 receivers 100 and setting an operation program to a radio wave monitoring operation type to perform radio wave monitoring service will be described.

First, as a start step, the operator executes the operation program (S1).

As an initialization step of the GPIB card, all the memories of the GPIB card are reset and a command related to near field control is set in the card (S2).

Subsequently, control commands are executed in an operation program to reset the E1500 receivers 100 connected to the GPIB card and operate the on-line button of the GPIB interface device 300 connected to each E1500 receiver to operate the frequencies of all the E1500 receivers 100. Set to 10MHz (S3).

At this time, the E1500 receivers 100 are locked.

However, the operator changes the frequency of the E1500 receiver from time to time so that the operating program automatically sends a command to unlock the locked state.

The next step is the part where the actual task is set to an infinite loop, if any event occurs, go to the routine to perform the task (S4).

Specifically, when the operator listens to the voice content of the frequency set in the E1500 receiver 100 and requests the radio computer to perform the radio monitoring, the button on the GPIB interface device 300 connected to the corresponding E1500 receiver Press.

In this case, the GPIB card of the operating computer 200 receives a signal from the interface device 300 and internally sets a flag.

Then, the operation program determines the operation state of the GPIB interface device 300 by searching only whether the corresponding flag is set (this process will be described later).

Here, the operating program searches for whether or not the flag is set (S5).

Step 6 (S6) is a part for performing the commands input when the operator inputs the necessary commands when the operator wants to set the frequency to the connected E1500 receiver or to know whether all the E1500 receivers are connected and the set frequency values. (This process is also described later).

The flow when the flag is set (i.e., state = 1) by the step 5 (S5) of checking the flag state of the GPIB card will be described with reference to FIG. 2B.

FIG. 2B is a flow chart of retrieving an operating state of the GPIB interface device 300 and reading out necessary information.

The GPIB card installed in the operating computer 200 is a card made by an HP company in the United States, which is commonly referred to as an HPIB card, and used the GPIB standard control library provided by this company.

If any device has a standard GPIB interface installed, you can easily implement the control program using common commands provided by the company when you want to control it via an HPIB card.

However, since the GPIB interface device connected to the E1500 receiver is not such a standard GPIB interface device, it is impossible to read the data of the interface device with a single command, so it has to be controlled by several processes.

The control sequence is as follows.

First, when the flag state of the GPIB card is set by checking (S5), serial polling is enabled on the HPIB card so that data of the GPIB interface device 300 connected to the HPIB card of the operation computer 200 can be read. Poll Enable) is executed (S7).

Then, the operation state (determined whether the button is pressed) is searched from the GPIB interface device of Address 0 (Address 0) in the addresses allocated to the number of the aforementioned GPIB interface devices (S8).

In other words, this is to check whether there is data in the GPIB interface device having the N addresses.

If it is determined by the search (S8) that the power is turned off or there is no data (the button is not pressed), the device is incremented by one (N = N + 1) (S9), until the last addressed device (N final address). Search (S10).

When the search is finished, the command to set the Serial Poll Disable state to finish the search on the HPIB card is executed (S11).

Then, the operating program again performs step 5.

On the other hand, by checking the button state of the N GPIB interface devices (that is, whether there is data in the device) (S8), and if it is determined that there is data in the GPIB interface device of the corresponding address, the operating program checks the data. It reads (S12).

At this time, if the data in GPIB interface device is read in the operating program, the data memory is automatically reset.

That is, the operating program interprets the read data and determines which button is pressed.

In addition, the operation program transmits a lighting indication command to the corresponding GPIB interface device to indicate the lighting state at the position of the button which is conveniently pressed by the operator (S13).

In addition, the operation program performs a command for reading the frequency of the E1500 receiver connected to the corresponding GPIB interface equipment (S14).

Thereafter, the operating computer displays the frequency value of the corresponding E1500 receiver, the radio wave type, the address of the GPIB interface device, and the contents of the pressed button so that the operator operating the operating computer can display on the screen (S15).

Accordingly, the operating computer operator can determine whether to perform radio monitoring by viewing the displayed contents.

Then, the operation program again performs step 5 (S5).

And, when the operator wants to set the frequency to any receiver or to know the operating status of the entire E1500 receivers described with reference to Figure 2c as follows.

First, if there is data to be transmitted to the corresponding E1500 receiver in step 6 (S6), in order to search (S16) whether the GPIB interface device or the E1500 receiver of the N address to receive the data sent from the operating program is normal. Send the command.

If the search (S16) is not normal, that is, if the failure or the power is off, the operating computer screen indicates that the data cannot be transmitted to the corresponding E1500 receiver (S17).

For example, the screen of the operating computer will indicate that the N device is bad.

Then, step 5 (S5) is performed again.

On the other hand, if the corresponding GPIB interface equipment is normal by the search (S16), the data to be sent is formatted in a form that the E1500 receiver can receive (S18) and inserts an address and transmits it to the E1500 receiver (S19).

The E1500 receiver receiving the data format thus transmitted transmits a release command for releasing the locked state immediately after the frequency is set by the command, and then performs step 5 (S5) again.

Accordingly, the E1500 receiver operator monitors the sound of the set frequency.

The present invention as described above is to close the control of the E1500 receivers that are high frequency (HF) band receiving equipment to be able to efficiently handle radio monitoring.

Claims (3)

An operating computer with a GPIB card, E1500 receivers with different addresses for listening to high frequency bands, and GPIB interface devices each connected in parallel to the E1500 receivers for communication via the GPIB cable with the operating computer. In the method for monitoring the radio waves by controlling the E1500 receivers in a short range, the first process of initializing to set the GPIB card and the E1500 receivers in the radio monitoring operation mode, and after performing the initialization of the first process, the operator A second process of retrieving a flag state of the GPIB card according to an operation state of the GPIB interface equipment when requesting an operation computer to perform radio wave monitoring for the corresponding E1500 receiver; and a flag of a GPIB card by retrieving the second process A third process of reading data of the GPIB interface device when the state is set, and If the flag state of the GPIB card is not set by the search of the second process, there is a fourth process of checking whether there is data to be transmitted to a certain E1500 receiver by the operator of the operating computer, and there is data to be transmitted by the inspection of the fourth process. In this case, the operator sets a frequency to a certain E1500 receiver or a radio wave monitoring method using a high frequency receiver, characterized in that the fifth step of displaying the operating state of the entire E1500 receiver. The method of claim 1, wherein the third process comprises: setting a GPIB card in a serial poll enable state to read data of each GPIB interface device, and after setting, each GPIB having an address. Checking whether there is data in the interface device; if there is no data in the GPIB interface device by this test, repeatedly checking until there is a GPIB interface device with data; If there is data, checking which GPIB interface device's button is pressed and displaying the pressed button, reading the frequency of the E1500 receiver connected to the GPIB interface device after the display, and checking the frequency of the receiver. After reading, the frequency value of the corresponding E1500 receiver, Radio wave monitoring method using a high-frequency receiver comprising the steps that form and to display the address of the GPIB interface device as claimed. The method of claim 1, wherein the fifth step includes checking whether the state of the GPIB interface device of the corresponding address transmitting the data is normal when there is data to be transmitted to the E1500 receiver by the inspection of the fourth step; If the inspection fails, the E1500 receiver receives the data to be sent if the GPIB interface equipment is normal by displaying the defective status on the screen of the operating computer. And then inserting the address to the E1500 receiver, receiving the transmitted data, setting a frequency of the receiver, and transmitting a command to release the locked state of the receiver. Radio wave monitoring method using a high frequency receiver characterized in that.