KR100874418B1 - Test Equipment of Central Broadcasting System - Google Patents

Abstract

The present invention relates to a device for testing a central control broadcasting system that broadcasts directly from a central command room to each history when an emergency occurs in each history of a subway or a railroad, and more particularly, to a broadcasting device installed in each history. The present invention relates to a test apparatus of a central control broadcasting system that performs fault check communication and broadcast check communication, analyzes the results, and monitors functions and operations without performing a broadcast from a central command center.

In order to achieve the above object, the test apparatus of the central control broadcasting system according to the present invention includes a key input unit for receiving an operation command, a line selection, etc. of a history broadcasting apparatus to be checked, an operation state of a test apparatus, a communication check state, A display unit for displaying the broadcasting status and test results, a communication unit for performing mutual communication through data transmission between the history broadcasting apparatus and the test apparatus, and detecting input values of the key input unit, and accordingly, a test consisting of communication check and broadcast check is performed accordingly. And a power supply unit for stably supplying power to each component.

Description

Monitoring apparatus for Remote controlling broadcasting system

1 is a diagram showing the configuration of a central control broadcasting system.

2 is a view showing a state in which a test apparatus according to the present invention is connected to the central control broadcasting system.

Figure 3 is a diagram showing the configuration of a test apparatus of the central control broadcasting system according to the present invention.

4 is a diagram illustrating a data packet transmitted at a communication check.

5 is a diagram illustrating a data packet transmitted in a failure response.

6 and 7 illustrate data packets transmitted in a broadcast check communication.

 <Description of the symbols for the main parts of the drawings>

100: test apparatus 200: command broadcast apparatus

300: history broadcaster 400: communication network

110: key input unit 120: display unit

130: communication unit 140: control unit

141: CPU 142: memory

150: power supply unit 151: constant voltage circuit

152: external power supply unit 153: built-in battery

The present invention relates to a device for testing a central control broadcasting system that broadcasts directly from a central command room to each history when an emergency occurs in each history of a subway or a railroad, and more particularly, to a broadcasting device installed in each history. The present invention relates to a test apparatus of a central control broadcasting system that performs fault check communication and broadcast check communication, analyzes the results, and monitors functions and operations without performing a broadcast from a central command center.

In general, a central command room such as a subway or a railroad, and each station is provided with a broadcasting device (aka, Japanese broadcasting device) for the central control broadcasting system that directly broadcasts the delivery of major announcements, etc. from the central command room. The central control broadcasting system is installed and operated for emergency broadcasting or publicity broadcasting such as induction of passengers in case of an emergency, and means that the central command room simultaneously broadcasts a plurality of histories simultaneously. This central control broadcasting system is convenient because it does not need to perform the same broadcasting separately for each history, and it has the advantage of being able to respond quickly according to the situation.In addition to the history, the factories are distributed in fire stations, police stations, and various regions. It is being applied to general companies.

Korean Patent Application Nos. 100-1997-0037273, 100-1997-0037335, and 100-20004-00400368 are prior arts related to such a central control broadcasting system.

In the case of the conventional central control broadcasting system as described above, in order to check whether there is a failure, the actual command signal or a separate control signal composed of voice messages or data is transmitted from the central command room to the respective histories to confirm whether the acknowledgment signal is normally received from the corresponding history. It will be judged.

However, in general, since the central command room and the history of broadcasting are remote from each other, the acknowledgment signal may not reach the central command room properly due to the problem of communication relaying separately from the broadcasting function. It is difficult to determine whether it is a problem of the broadcasting device (aka mother device) of the command room or the broadcasting device (aka daughter device) installed in each history.

Accordingly, in order to test the operation status of broadcasting equipments in each station in the current history of the subway, the central command room and each station are simultaneously connected at the same time, and the command is to conduct a test broadcast and check each method in each history. I use it.

Therefore, such a test requires a large number of manpower to be put into the central command room and each history at the same time, and the manpower should be waiting in the command and each history while preparing for the test and broadcasting. In addition, there is a problem that wastes time and money.

The present invention has been proposed to solve the above problems, and it is easy to perform a failure check for each broadcasting apparatus installed in each history, and analyze the results to perform the function and operation of the broadcasting apparatus without performing broadcasting from the actual central command room. The purpose of this study is to propose a test system for the central control broadcasting system that facilitates monitoring.

In order to achieve the above object, the test apparatus of the central control broadcasting system according to the present invention is a test apparatus for checking the history broadcasting apparatus of the central control broadcasting system which directly broadcasts each history from the central command room.

The test device is disconnected from the central command room to the history broadcaster at the time of inspection, and connected to the history broadcaster,

Key input unit for receiving the operation command, line selection, etc. of the history broadcaster to check,

A display unit which displays the operation status of the test apparatus, the communication check status, the broadcasting status and the test result,

Communication unit for performing mutual communication through data transmission between the history broadcasting apparatus and the test apparatus,

A broadcast that detects the input value of the key input unit, repeatedly transmits data between the test apparatus and the corresponding history broadcasting apparatus at predetermined time intervals, and determines whether there is a failure according to the response, and transmits the same broadcasting data as the actual broadcasting. A control unit which sequentially performs a test made of checks and expresses a test state and a result;

It characterized in that it comprises a power supply for supplying power to each component stably.

The control unit may include a CPU for controlling a test operation of the test apparatus;

And a memory for storing data for broadcast inspection and inspection result data.

In addition, the response data transmitted from the history broadcasting apparatus to the test apparatus at the time of the communication check is information indicating that the communication is a fault response for the fault check, the subway line information, the corresponding history information sending the received response, the status information of the fault response communication, and the error check. Characterized in that comprises information for.

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

First, the embodiment of the present invention proposes a system for performing simultaneous broadcasting from the central command room of the subway to each station as the central control broadcasting system. The system is applicable to all places where the central control broadcasting system is applicable, such as railways, fire stations, police stations, and general enterprises.

1 is a diagram showing the configuration of a central control broadcasting system.

As shown in FIG. 1, the central control broadcasting system in which the test apparatus 100 according to the present invention is installed includes a command broadcasting apparatus (mother apparatus) 200 installed in a central command room, and a history broadcasting apparatus provided in each history ( Self-contained) 300 and a communication network 400 connecting the same, the test device 100 is connected to each history broadcaster 300 when performing the test.

Here, the communication network 400 may use various types of wired and wireless communication networks including LAN, RF communication, power line communication, optical communication, and the like, and may further include one or more communication converters or repeaters for use in parallel. can do.

2 is a view showing a state in which a test apparatus according to the present invention is connected to the central control broadcasting system.

As shown in FIG. 2, for periodic inspection and inspection of the history broadcasting apparatus 300, the connection cable from the communication network 400 to the history broadcasting apparatus 300 is disconnected, and the connection cable is connected to the test apparatus according to the present invention. 100).

Thereafter, the test apparatus 100 performs a failure check on the connected history broadcasting apparatus 300.

3 is a view showing the configuration of a test apparatus of the central control broadcasting system according to the present invention.

As shown in FIG. 3, the test apparatus 100 of the present invention displays a key input unit 110 for receiving an operation command, a line selection, and the like of a history broadcasting apparatus 300 to be checked, a state of a test apparatus, and a test result. The display unit 120, the communication unit 130 performing mutual communication through data transmission with the history broadcasting apparatus 300, and detects the input value of the key input unit 110, and accordingly the communication unit 130 and the display unit 120 The control is performed to sequentially perform a test consisting of a communication check and a broadcast check, and comprises a control unit 140 for expressing a test state and results and a power supply unit 150 for stably supplying power to each component.

First, the key input unit 110 receives an operation command or a line selection through an input key provided on the outside of the test device 100 of the present invention. This is because the communication method used up to the line does not match. In addition, even in the same history, in case of a transit station in which two or more lines are operated together, the history broadcasting device 300 is separately provided for each history, and the line input is required because group broadcasting may be performed according to the line.

The display unit 120 is composed of a display device such as an LED, indicating the current operating state, the communication check state, the broadcast state, etc. of the test apparatus 100 so that the test state and the result can be easily checked.

That is, when the test apparatus 100 of the present invention is connected to the history broadcasting apparatus 300 and operated, the RUN LED blinks first to indicate that the test apparatus 100 is in normal operation. When the line selection is received by the above-described key input unit 110, the selected line is displayed as a number of 1 to 4 accordingly. After that, when a fault check is performed by an operation command, the current communication status and response status are indicated by LEDs, and the ID of the corresponding history is displayed by numbers.

The communicator 130 performs a fault check through mutual communication between the history broadcasting apparatus 300 and the test apparatus 100.

Accordingly, the communication unit 130 is configured to support a wired / wireless communication module that is compatible with the communication method used by the history broadcasting device 300. For example, in the case of the subway line 1 to 4 of the embodiment of the present invention, since the communication method by RS-232 is used, the communication unit 130 is provided with a corresponding communication module.

The controller 140 controls the operation of the components constituting the test apparatus 100 of the present invention, detects an input of the key input unit 110, determines an operation, and performs data communication through the communication unit 130. And a CPU 141 for controlling a series of check operations for displaying the result through the display unit 120 and a memory 142 for storing data for broadcast check.

At this time, the CPU 141 sequentially performs a communication check and a broadcast check as a check operation of the test apparatus 100.

Here, the communication check is to perform a failure check communication between the test device 100 of the present invention and each history broadcasting device 300 according to a predetermined communication method. Accordingly, in the embodiment of the present invention performing communication by RS-232, the control unit 140 constituting the test apparatus 100 weakens the 8-bit data packet in an asynchronous manner of 64 kbps under the control of the CPU 141. Repeated transmission at 500msec interval.

4 is a diagram illustrating a data packet transmitted during such a communication check.

As shown in Fig. 4, the fault check data packet transmitted from the test apparatus 100 to the history broadcast apparatus 300 indicates information indicating fault check communication (COMMAND (1)), subway line information (LINE No. 1). 4)), the corresponding history information (STATION ID) consisting of 3 BYTE ASCII, and the information for error checking (CHECK SUM).

When the fault check communication is repeatedly performed from the test apparatus 100 to the history broadcast apparatus 300 at a predetermined time interval, the CPU 141 receives the fault response communication from the corresponding history broadcast apparatus 3000 which has received the fault check communication. It is determined whether the communication check is normally performed according to whether the test apparatus 100 is transmitted.

5 is a diagram illustrating a data packet transmitted in response to such a failure.

As shown in Fig. 5, the data packet transmitted from the history broadcasting apparatus 300 to the test apparatus 100 is information (COMMAND (1)) indicating that it is a failure response communication for fault check, and subway line information (LINE No. 1). (1 ~ 4)), the corresponding history information (STATION ID) sending 3BYTE ASCII received response, status information of fault response communication (STATUS (1)), information for error check (CHECK SUM), etc. It is done by

Accordingly, the CPU 141 checks and checks subway line information, corresponding history information, and the like from the received fault response communication data to determine whether the message is normally received.

The information thus determined may be immediately checked through the display unit 120 and stored in the memory unit 142 to perform a function of data backup.

When the fault check communication and fault response communication are performed as described above, the CPU 141 performs the broadcast check communication to check whether the actual broadcast is normally performed in the test apparatus 100. The broadcast inspection communication is performed by the test apparatus 100 of the present invention by performing the same broadcast as the central control broadcast from the command broadcast apparatus 200 of the actual central command room through each history broadcast apparatus 100, and the actual broadcast is normally performed. Will be reviewed.

6 and 7 illustrate data packets transmitted during the broadcast check communication.

6 and 7, the broadcast check data packet transmitted from the test apparatus 100 to the history broadcast apparatus 300 is divided into broadcast setting data and broadcast hot data and sequentially transmitted.

First, the broadcast setting data includes information (COMMAND (2)) indicating broadcast check communication, broadcast location information (up, down, waiting room), corresponding history information (STATION ID), etc., as shown in FIG. The history information is configured to select a corresponding history by allocating bytes as much as history numbers.

Next, the broadcast open data transmitted includes information (COMMAND (2)) indicating broadcast check communication, broadcast position information (up, down, waiting room) and the like as shown in FIG.

After transmitting the broadcast open data in this manner, the CPU 141 reads the actual broadcast voice data consisting of the audio files stored in the memory 142 for each uphill platform, downhill platform and waiting room in the history and transmits them through the communication unit 130. .

 In addition, the test result data made as described above may be stored in the memory 142 and used for later test result analysis.

The power supply unit 150 supplies power to each of the above components, and includes a constant voltage circuit 151, an external power supply unit 152, and an internal battery 153 as shown in FIG. 3.

The constant voltage circuit 151 is for stably supplying the power required for the test apparatus 100 of the present invention, and uses a conventional constant voltage circuit composed of a diode, a transistor, a capacitor, and the like.

In addition, the test apparatus 100 of the present invention normally supplies power by connecting normal AC power through an external power supply unit 152, but further includes a separate internal battery 153 to prepare for an emergency such as an unexpected power failure. It is preferable to provide.

The test apparatus 100 according to the embodiment of the present invention configured as described above modulates or amplifies a signal transmitted as necessary to the above components, so as to more precisely and smoothly perform a fault search. Other components such as inverters for AC conversion may be further added, but unnecessary parts of the present invention will be omitted.

The present invention is not limited to the above-described embodiments, and technical ideas that can be modified and converted by those skilled in the art to which the present invention pertains without departing from the gist of the present invention also belong to the following claims. Should be seen.

According to the configuration as described above, the present invention can easily perform a failure check for each broadcasting device installed in each history, and analyze the results to smoothly monitor the function and operation of the broadcasting device without broadcasting from the actual central command room. This saves time and money, and prevents failures.

Claims (3)

In the test apparatus for checking the history broadcasting device of the central control broadcasting system that broadcasts directly to each history from the central command room, The test device is disconnected from the central command room to the history broadcaster at the time of inspection, and connected to the history broadcaster, A key input unit for receiving an operation command of a history broadcasting device to be checked, a line selection, A display unit which displays the operation status of the test apparatus, the communication check status, the broadcasting status and the test result, Communication unit for performing mutual communication through the data transmission between the history broadcaster and the test device, A broadcast that detects the input value of the key input unit, repeatedly transmits data between the test apparatus and the corresponding history broadcasting apparatus at predetermined time intervals, and determines whether there is a failure according to the response, and transmits the same broadcasting data as the actual broadcasting. A control unit which sequentially performs a test made of checks and expresses a test state and a result; It includes a power supply for stably supplying power to each component, The response data transmitted from the history broadcasting device to the test device during the communication check is information indicating that the communication is a fault response for the fault check, the subway line information, the corresponding history information sending the received response, the status information of the fault response communication, and the error check. Test apparatus of the central control broadcasting system comprising the information. The method of claim 1, The control unit is a CPU for controlling a test operation of the test device; Test apparatus of the central control broadcasting system, characterized in that comprises a memory for storing data for the broadcast check. delete

Images