KR100485478B1 - Broadcasting system for calling parking car - Google Patents

Abstract

A broadcasting system for calling a parked car is provided to mount an extra car calling remote keyboard to an existing exclusive broadcasting facility, thereby accurately calling the parked car with a clear calling tone. A car call remote keyboard(10) comprises a microphone for calling a car with a nature tone, number key buttons for calling car numbers or a broadcasting with buttons, a display unit for displaying an operation state and a speaker. The input interface(20) reads a car call signal or a broadcasting call signal. If the call signal is a nature calling tone, the input interface(20) transmits the call signal to an audio control and a pre-amplifier(70), and outputs a control signal for preventing an additional voice call to the car call remote keyboard(10), then transmits an interrupt signal for informing a voice ringing tone input to a CPU(50). A synchronization signal generator(30) outputs a synchronization signal for a data polling in the car call remote keyboard(10) or a PBX(90) to the input interface(20). An MP3 decoder and a memory board(40) call a sound source corresponding to a number key button, and convert a number key button signal into a digital complex sound to be outputted to the audio control and the pre-amplifier(70). The audio control and the pre-amplifier(70) output the natural calling tone or the digital synthetic tone to an exclusive broadcasting facility(100). A call number displaying unit(60) orderly receives and outputs a call number. The CPU(50) outputs the number key button signal to the call number displaying unit(60).

Description

Broadcasting System for Calling Parking Car

Parking vehicle call broadcasting system is a broadcasting system for inducing customers, service workers, managers or officials to exit or place required vehicles that are parked in underground or ground parking lot such as hotel, shopping center, public building, and company building. This system is used in conjunction with PA system installed or to be installed.

     Conventional parking vehicle calling equipment does not have a separate vehicle call remote keyboard or call number indicator, so calls are made directly from the broadcasting room using public address equipment. Even if the PA system has a board, the voice synthesis sound calls the vehicle number, so the four-digit vehicle number is called with the same accent tone, so the sound is unnatural and the sound quality is reduced, making the driver feel uncomfortable when listening.

In addition, even when a vehicle call remote keyboard is installed, some of them may not be called when voice synthesis by a button input or a call through a microphone is made in multiple remote keyboards simultaneously.

Conventionally applied automatic electric equipment (application number: 2000-0023752) is a digitalization of the internal controller of the control room and the external controller of the room, the application of the device is limited to high-rise buildings, etc., announcements can be called only inside the control room There was a problem that the vehicle can not be called by using the internal telephone or terminal in the cabin.

In addition, the intelligent broadcasting system (application number: 2000-0068623) performs the broadcast control conveniently using the touch screen, and introduced the ARS server to enable the announcement of the call from a remote place. Due to the low cost of the system, there was a problem that the vehicle call cannot be made in various places by using an internal telephone or a terminal.

The present invention has been made to solve the above problems, the object is

Easily attached to the existing PA system, it is possible to call the vehicle with a separate vehicle call remote keyboard to provide a parking vehicle call broadcasting system that can be easily and conveniently used by customers, service workers, and related personnel.

Another object of the present invention is to enable a vehicle call using an on-site telephone to make a vehicle call in the office in the building, such as a telephone and to board the vehicle without a long waiting time at the boarding station to reduce unnecessary waiting time and troublesome boarding It is.

In addition, the purpose is to control the calling sequence in the order when the vehicle call occurs simultaneously in the congestion time zone.

In addition, the object of the present invention is to improve the intelligibility and accuracy of the call sound of the parking vehicle by applying the MP3 method to the voice synthesis method instead of the ADPCM (Adaptive Differential Pulse-code Modulation) method.

In addition, it can be used for personal information or other notifications as well as calling a vehicle number as a sound sound through a microphone, and can store various guide letters and output them as a voice synthesis sound according to a specific key button.

Parking vehicle call broadcasting system according to the present invention for achieving the above object,

At least one vehicle call remote keyboard having a microphone and a button for calling a vehicle and a number key button for calling a vehicle number or a guide broadcast and a display means for indicating an operation state; A private exchanger for receiving the vehicle call signal of the at least one vehicle call remote keyboard and the general local telephone is connected, receives a vehicle call signal or a guide broadcast call signal from the remote keyboard or the private exchange, reads the call signal, In case of voice call, the call signal is transmitted to the audio control & preamplifier, and the control signal to prevent additional voice call is sent to all vehicle call remote keyboards, and the central processing unit transmits an interrupt signal notifying that the voice call is input. An input interface for transmitting the received call signal to the central processing unit in case of the call signal by the numeric key button; A synchronization signal connected to the input interface and the central processing unit to share a synchronization signal for data processing with the central processing unit and to output a synchronization signal for data polling to the input interface to one or more vehicle calling remote keyboards and private exchanges. A generator; An MP3 decoder & memory board, connected to a central processing unit, for calling a sound source stored under the control of the central processing unit, converting a numeric key button signal into a digital synthesis sound, and outputting it to an audio control &preamplifier; It is connected to an input interface, an MP3 decoder & memory board and PA system, and outputs a sounding call coming from the input interface or a digital synthesis sound flowing from an MP3 decoder & memory board to the PA and outputs the sounding call during the digital synthesis sound output. When the inflow is automatically switched to output the voice call to the top priority, and the audio control and pre-amp to perform the volume control function; One or more call numbers connected to a central processing unit, having display means for displaying call numbers, sequentially receiving the call numbers and outputting them sequentially, and causing the call number displayed on the display means to automatically disappear after a predetermined time. An indicator; Receives the numeric key button signal from the input interface, outputs it to the call number indicator, and outputs a control signal for generating a digital synthesis sound corresponding to the numeric key button signal to the MP3 decoder & memory board, and sends the interrupt signal from the input interface. And a central processing unit which stops the digital synthesis sound generation for a predetermined time when it is received and regenerates the digital synthesis sound from the first call number.

Preferably, the vehicle call remote keyboard is characterized in that a recall function for checking whether the call signal is sent when the call is made by the numeric key button on the display means and recalling the last call number.

More preferably, the vehicle call remote keyboard is connected to the input interface by a single signal line, characterized in that for sharing the single signal line when the call and the numeric key button calls.

More preferably, the vehicle call remote keyboard 10 may generate an interrupt when the call is input by the microphone during the call processing by the numeric key button to process the call up first.

More preferably, a speaker is additionally included in the vehicle call remote keyboard or the call number indicator, and a separate wiring is configured with the PA system, and the amplified call sound is output from the vehicle call remote keyboard or the call number indicator. .

More preferably, the MP3 decoder & memory board 40 stores each number (0 to 9) for calling the vehicle number and the sound of which the range of each number is lowered, so that the first to third digits of the vehicle number are 210. It is output at a frequency of ~ 250Hz and the number of the fourth digit is characterized in that the output as falling intonation (Falling Intonation) in the frequency range of 150 ~ 190Hz.

Hereinafter, with reference to the accompanying drawings will be described in more detail the parking vehicle call system according to a preferred embodiment of the present invention.

1 is a block diagram showing the overall configuration of a parking vehicle call broadcasting system.

Referring to the drawings, the parking vehicle call broadcasting system includes a vehicle call remote keyboard 10, an input interface 20, a synchronization signal generator 30, an MP3 decoder & memory board 40, a central processing unit 50, a call number It consists of an indicator 60, an audio control & preamplifier 70, and a power supply 80.

The vehicle call remote keyboard 10 is provided with a microphone and a button for calling a vehicle by nurturing, a numeric key button for calling a vehicle number or guide broadcasting, a display means for indicating an operation state, and a speaker through a communication connection means. It is connected to the input interface 20. The communication connection means is configured such that the upcall call signal and the numeric key button signal are used as one signal line in common.

The input interface 20 is connected to a private switch 90 for receiving a vehicle call signal of one or more vehicle calling remote keyboards 10 and a general local telephone, so that the vehicle from the remote keyboard 10 or the private exchange 90 is connected. Receiving a call signal or a guide broadcast call signal and reading the call signal, in the case of a sounding call sound, transmits the call signal to the audio control & preamplifier 70 and prevents further sounding call to all the vehicle call remote keyboards 10. Sends a control signal for transmitting the interrupt signal to the central processing unit 50 to notify that the sounding call sound has been input, and in the case of the call signal by the numeric key button transmits the received call signal to the central processing unit 50 Do this.

In addition, the synchronization signal generator 30 is connected to the input interface 20 and the central processing unit 50, sharing the synchronization signal for data processing with the central processing unit 50 and at least one vehicle call remote keyboard 10 And outputting a synchronization signal for polling data to the input interface 20 to the private exchanger 90, and the MP3 decoder & memory board 40 is connected to the central processing unit 50, It stores each number sound (0 ~ 9) and the number sound of the intonation lowered corresponding to each number and various guide broadcasting sound sources, and calls the sound source corresponding to the number key button input by the control of the central processing unit 50. And converts the numeric key button signal into a digital synthesis sound and outputs it to the audio control & preamplifier 70.

The audio control & preamplifier 70 is connected to the input interface 20, the MP3 decoder & memory board 40 and the PA system 100, and the sounding call or MP3 decoder & memory board inputted from the input interface 20 is provided. The digital synthesized sound inputted at 40 is output to the PA system 100, and when the voice call sound is input while the digital synthesis sound is output, it is automatically switched to output the voice call sound with the highest priority, and performs the volume control function of the call sound.

The call number indicator 60 is connected to the central processing unit 50, and has a display means for displaying the call number. The call number indicator 60 receives the call number sequentially and sequentially outputs the call number displayed on the display means. The number is configured to automatically expire.

The central processing unit 50 receives the numeric key button signal from the input interface 20 and outputs it to the call number indicator 60 and generates a digital synthesis sound corresponding to the numeric key button signal on the MP3 decoder & memory board 40. Outputs a control signal for receiving the interrupt signal from the input interface 20, and stops the digital synthesis sound generation for a predetermined time and performs the function of regenerating the digital synthesis sound from the first call number.

Referring to the specific operation of the present invention configured as described above are as follows.

First, a user inputs a vehicle number to be called from the vehicle call remote keyboard 10 by using a numeric key button (eg, 1, 2, 3, 4) or a microphone or by using a numeric key button of a general premises telephone. When the vehicle number is input, a plurality of vehicle call remote keyboards 10 and call signals output from the private exchanger 90 connected to the synchronization signal output from the synchronization signal generator 30 are transmitted to the input interface 20. . In the vehicle call remote keyboard 10, a recall function is set on the display means to check whether the call signal is transmitted when the call is made by the numeric key button and recall the final call number. When the upbring call is inputted, an interrupt is generated to process the upbring call first.

The input interface 20 determines whether the signal input from the vehicle call remote keyboard 10 is a call made by a key button or a nurturing call using a microphone. In case of a microphone raising call, the control unit transmits to the audio control & preamplifier 70. In the input interface 20, in the case of a breeding call, an interrupt signal is separately transmitted to the central processing unit 50 to stop the call control by the numeric key button signal being processed for a predetermined time.

The central processing unit (50) determines the authenticity of the data of the input numeric key signal, confirms that the call is not a microphone fostering call in the case of normal data, and controls the MP3 decoder & memory board 40 to the sound source of the corresponding stored number. Generate digital synthesis sound. In the digital synthesis sound generation process, a memory chip outputs data stored therein, and the data is output as a call sound by an MP3 dedicated chip and a digital / analog conversion chip, and amplified by the audio control & preamplifier 70 to generate a substantial call sound. It is output from the PA system 100 connected to the rear end. At this time, a separate signal line is formed on the amplifier output terminal of the PA system and the parking call remote keyboard 10 or the call number indicator 60, so that the vehicle call sound is also heard from the parking call remote keyboard 10 or the call number indicator 60. Can be configured to occur.

The central processing unit 50 transmits the called number (eg, 1, 2, 3, 4) data to the call number indicator 60 as digital data at the same time as the start of the ring tone generation so as to be visually displayed.

     If the call number is accumulated due to the limitation of the display portion (for example, display of 4 or 8 vehicles), the call number indicator 60 is first extinguished by the later called number by the first-in-first-out method. In addition, after a certain time, it is automatically extinguished to reduce power consumption, and its holding time (eg, up to about 30 minutes at 15 second intervals) can be adjusted in the central processing unit 50.

     In the input interface 20, a plurality of vehicle call remote keyboards 10 are connected to receive call signals sequentially by the synchronization signal of the synchronization signal generator 30, and a private switching device to which a plurality of local telephones (general telephones) are connected. 90) can be connected to a plurality of vehicle call remote keyboard (10) at the same time. When the call signal consisting of the DTMF signal is received from the private exchange 90, the DTMF decoder inside the input interface 20 converts the number into a corresponding number, and the operation thereafter is performed in the same manner as in the vehicle call remote keyboard 10. The signal line between the vehicle call remote keyboard 10 and the input interface 20 is designed to reduce the number of wires by allowing the digital signal and the audio signal to be shared. The synchronization signal generator 30 generates a dedicated synchronization signal for managing the plurality of call remote keyboards 10 and checks the communication state with the corresponding call remote keyboard and displays the state on the parking call remote keyboard 10. . In normal operation, the display means of the corresponding vehicle call remote keyboard 10 blinks, and when it is abnormal, it continuously lights to indicate that it is abnormal.

MP3 decoder & memory board 40 uses voice compression MP3 chip to increase the sound quality of call sound and reduce memory capacity. Also, it stores the notice of specific phrases in memory instead of calling number. Mapping with 1-digit 3-digit number usage guide or no specific function buttons (eg, ##, # * #) are pressed on the calling telephone 100 connected to the vehicle call remote keyboard 10 or the private exchange 90 When called, the announcement is broadcast through the public address system.

     On the other hand, in order to optimize the intonation by the combination of numbers when the vehicle is called, the first, second and third digits of the vehicle digits have a frequency of about 210 to 250 Hz based on the female voice and the fourth digits. First, second and second, using the method of falling intonation (Falling Intonation) having a frequency of 150 ~ 190Hz, which is about 1/2 octave lower than the frequency of the third digit. Therefore, all 20 sound sources (0 to 9, 0 'to 9') required for the number call are required. The call number or announcement data is recorded in a non-volatile memory after recording the original sound as a wave file and converting it into an MP3 dedicated encoder (128Kbps, 44.1KHz).

In addition, in the central processing unit 50, if the microphone call signal is received during digital synthesis call processing, the synthesized call is immediately set to stop / standby state, the voice call signal is processed first, and then the synthesized call is suspended for the first time. Will be processed again. This is to prevent waste of unnecessary equipment for sequentially encoding and storing the sound sound.

     Power supply 80 is a circuit for stably supplying the power required for each component (20,30.40.50.70), and adopted a circuit operated by DC in order to maintain the state of the call during power failure.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various changes can be made without departing from the technical spirit of the present invention. It will be obvious to him.

As described above, the present invention can be easily attached to an existing public address installation, and can call a vehicle by using a separate vehicle call remote keyboard so that a customer, a service worker, or a related person can use a parking vehicle call broadcasting system easily and conveniently. There is an advantage.

In addition, it is possible to call the vehicle using the internal telephone, so that the vehicle can be called by a telephone in an office, etc. in the building, and the vehicle can be boarded without waiting for a long time at the boarding point.

In addition, there is an advantage in that the order of calls can be controlled in sequence when a vehicle call occurs simultaneously in a congestion time zone.

In addition, the voice synthesis method has an advantage of improving the intelligibility and accuracy of the parking vehicle call by applying the MP3 method instead of the commonly used Adaptive Differential Pulse-code Modulation (ADPCM) method.

In addition, it can be used for personal information or other notifications as well as calling the vehicle number through the sound generated through the microphone, and has the advantage of storing various guide letters and outputting them as a voice synthesis sound according to a specific key button.

1 is a block diagram showing the overall configuration of a parking vehicle call broadcasting system.

Description of the main parts of the drawing

10: vehicle call remote keyboard 20: input interface

30: Sync signal generator 40: MP3 decoder & memory board

50: central processing unit 60: call number indicator

70: Audio Control & Preamplifier 80: Power Supply

90: private exchange 100: PA system

Claims (6)

delete It has a microphone for calling a vehicle and a numeric key button for calling a vehicle number or a guide broadcast and a display means for indicating an operation state. The call is raised by a microphone during call processing by a numeric key button. In case of input, it generates an interrupt and processes the fostering call as the highest priority, and the display unit checks whether the call signal is transmitted when calling by the numeric key button and recalls the last call number. At least one vehicle call remote keyboard 10; A private switch 90 is connected to receive the at least one vehicle call remote keyboard 10 and a vehicle call signal of a general local telephone, and the vehicle call signal or guide broadcast from the remote keyboard 10 or the private exchange 90 is connected. Receives a call signal and reads the call signal, in case of a sounding call sound, transmits the call signal to the audio control & preamplifier 70 and transmits a control signal for preventing additional sound call to all the vehicle call remote keyboards 10. And the central processing unit 50 transmits an interrupt signal for notifying that the foster call is input, and the input interface 20 for transmitting the call signal received to the central processing unit 50 in the case of the call signal by the numeric key button Wow; Connected to the input interface 20 and the central processing unit 50 to share a synchronization signal for data processing with the central processing unit 50 and to one or more vehicle-calling remote keyboards 10 and private exchanges 90. A synchronization signal generator 30 for outputting a synchronization signal for data polling to the input interface 20; Connected to the central processing unit 50, the sound source stored under the control of the central processing unit 50 is called to convert the numeric key button signal into a digital synthesis sound to output to the audio control & preamplifier 70 as Each number (0 to 9) for calling the vehicle number and the sound of the lowered range of each number are stored, and outputted at a frequency of 210 to 250 Hz for the first to third digits of the vehicle number and the fourth digit. An MP3 decoder & memory board 40 outputting Falling Intonation in the frequency range of 150-190 Hz; Connected to the input interface 20, MP3 decoder & memory board 40 and public address equipment 100, the voice call sound coming from the input interface 20 or the digital synthesis sound flowing from the MP3 decoder & memory board 40 Output to the PA system 100 An audio control & preamplifier 70 for automatically switching when the sounding call sound flows out of the digital synthesis sound output and outputting the sounding sound sound at the top; It is connected to the central processing unit 50, and provided with a display means for displaying the call number, and sequentially receives the call number and outputs sequentially, so that the call number displayed on the display means is automatically extinguished after a predetermined time One or more call number indicators (60); Receives the numeric key button signal from the input interface 20 and outputs it to the call number indicator 60, and outputs a control signal for generating a digital synthesis sound corresponding to the numeric key button signal to the MP3 decoder & memory board 40 A central processing unit (50) for stopping the generation of the digital synthesis sound for a predetermined time when receiving the interrupt signal from the input interface (20) and regenerating the digital synthesis sound from the first call number; Parking vehicle call broadcasting system, characterized in that consisting of. The method of claim 2, The vehicle call remote keyboard (10) is connected to the input interface (20) by a single signal line, the parking vehicle call broadcasting system, characterized in that for sharing the single signal line when the call by the microphone and the call by the numeric key button. delete The method of claim 3, wherein A speaker is additionally included in the vehicle call remote keyboard 10 or the call number indicator 60 and a separate wiring is configured with the PA system 100 so that the amplified call sound is the vehicle call remote keyboard 10 or the call number. Parking vehicle call broadcasting system, characterized in that output from the display (60). delete