JPS6015178B2 - response broadcast system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In this invention, a master station transmits in a time-sharing manner a unique selection signal assigned simultaneously with audio to slave stations owned by each listener within a limited area, and a large number of slave stations By responding within the selected time, the master station can display response information for all slave stations at once, and if necessary, mutual communication can be made between the master station and a specific slave station. The present invention relates to a response broadcast system.

Conventionally, broadcasts from a master station over a traditional line have only unilaterally conveyed information through voice to those who have slave stations, and the slave stations have no ability to respond at all, and if they are forced to respond, the parents The only way to respond to the station was to use techniques-oriented turtle stories.

Even if the master station received a response call, it was impossible to receive many calls at the same time.

This invention has been made in consideration of these points, and has a function that uses another signal system in addition to general audio, and sends the response of the slave station back to the master station from the slave station using this signal as a medium. It is a device that can send signals to many slave stations in a time-division manner, and can respond directly by turning on and off switches at the slave stations, and this response state can be transmitted to all slave stations at once by the master station. To provide a response broadcasting system that can display information and quickly and reliably grasp the response status.

An embodiment of the present invention will be described below with reference to the drawings. As shown in Fig. 1, this response broadcasting system is divided into a master station 1 and a slave station 2, and a transmission section 3 between the master station 1 and slave stations 2 uses, for example, guided radio using a loop antenna. In the case of audio broadcasting, first, the master station 1 has a slave station selection signal generation section 4, from which a time-division signal is generated and sent to the master station transmitter/receiver section 6 together with the signal sent out from the master station audio transmission amplification section 5.
The signal is sent to the transmission section 3 from there. On the other hand, in the slave station 2, the signal transmitted via the transmission unit 3 is received by the slave station transceiver unit 7, the audio signal is sent to the slave station audio reception amplification unit 9, and the selection signal is sent to the slave station selection signal determination unit 8. Here, it is determined whether the signal corresponds to the address of the slave station in question, and if it is, the signal is sent to the response unit 101. At this time, when the operator performs a response operation, for example, turns on a response switch, a response signal is emitted from the slave station transceiver section 7. A slave station audio transmitter 11 is also provided, and audio signals are selectively transmitted from the slave station transmitter/receiver 7. This signal is received by the master station transmitting/receiving part 6 via the transmission part 3, and the master station selection signal determining part 12 determines which slave station the signal is from. is displayed. On the other hand, the audio signal is amplified and reproduced by the master station audio reception and amplification section 14. When it is desired to make a call between the master station 1 and the slave station 2, the signal from the master station selection signal determining section 12 is guided to the circuit holding section 16, and the output of the circuit holding section 16 is used to send the signal to the slave station selection signal generating section 4. The generated selection signal is fixed to the address of a specific slave station 2 to enable communication. In this way, according to the information sent from the master station 1 in a time-sharing manner, the slave station 2 also responds within the corresponding time, so that the master station 1 receives the information and displays the response status on the display device 13. It can be displayed all at once on a display board, etc., and it is possible to talk to a specific slave station if necessary. Next, to explain more specifically, as shown in FIG. is stored in the register 23. This stored content is serially read out and modulated by the pulse modulator 24, for example, in the high frequency band of the audio signal band, and the audio signal that has passed through the microphone 17 and the master station audio transmission amplifier 18 is mixed and sent to the master station transmitting/receiving section 6. The signal is guided to the transmitter 15 and transmitted. This signal is transmitted via the loop antenna 26 of the transmission section 3, which has a dual configuration, by a concession radio. The carrier wave frequency of this transmitter 15 is, for example, 100 to 25 HZ band, and the signal emitted from the loop antenna 26 is received by the receiver 28 at the slave station transceiver section 7 via the antenna 27 in the slave station 2. be done. This received signal is separated, and the audio signal is reproduced by the audio amplifier 19 and the earphone 20, while the selection signal is converted into a serial pulse signal by the demodulator 29 of the viscount selection signal determining section 8, and the selection signal is converted into a serial pulse signal by the demodulator 29 of the viscount selection signal determination section 8
and is guided to the comparator 31. This comparator 31 compares this serial pulse signal with the signal from the address register 32 that stores the specific address signal of this slave station 2, and if they match, it is YES (the signal corresponds to this slave station). A signal indicating the result of the judgment is outputted and stored in the storage register 33, and the lamp 34 is turned on to indicate that there is a call. At the same time, the gate circuit 30 is opened and the output of this gate circuit 30 is transmitted to the modulator 36.
The signal is modulated into the Takagi frequency band and guided to the transmitter 37. However, if the switch 38s provided between the transmitter 37 and the power supply circuit 38 is off, no response signal is emitted.
On the other hand, a microphone 61 and a transmission amplifier 62 are connected to the transmitter 37, and a response switch 35 that operates in conjunction with the switch 38s is also provided between the transmission amplifier 62 and the transmitter 37. When the response switches 35 and 38s are turned on, the audio signal and the response signal from the modulator 36 are emitted from the transmitter 37. This signal is transmitted to antenna 4 to radio receiver 40 which is coupled to loop antenna 26.
1, is further coupled to the transmission path of the loop antenna 26 via the coupler 32, and is taken out via the receiver 43 to the receiver 44 of the master station transmitting/receiving section 6. Among the signals detected and extracted by the receiver 44, the audio signal is guided to the amplifier 63 and the speaker 64 and reproduced, the response signal is demodulated by the demodulator 45 of the selection signal determination section 12, and this demodulated pulse signal is , is stored in the register 46 and further led to the comparator 47. This comparator 4
At 7, the signal stored in the register 46 is compared with the signal stored in the register 23 of the slave station selection signal generating section 4, and if they match, the comparator 47 generates a match signal. At this time, a line designated by a decoder 48 that decodes the contents of the register 23, for example, 49, and a match signal from the comparator 47 flow, and if there is a match between the match signal line 50, a hold register 52 is held via a gate circuit 51,
The lamp 53 is lit by the output. The lamps 53 are provided on a display board (not shown) by the number of slave stations.
The lighting status of each slave station can be seen at a glance. At this time, if the response switch 35 is not turned on in the slave station 2, the data transferred to the register 46 will be zero, will not match the data in the register 23, will be judged as a mismatch by the comparator 47, and will be sent to the mismatch signal line 54. The signal flows, the gate circuit 55 is turned on, the hold register 52 is reset, and the lamp 53 is no longer lit. When this lamp 53 does not light up, when the switch 65 provided corresponding to this lamp 53 is turned on, the unique number of that lamp 53 is decoded by the decoder 66-, and at the same time, the gate circuit 67
As a result, the switch circuit 68 selects the decoder 66, and the contents of the register 23 become the unique number of the lamp 53 (
address).

Therefore, only the selection signal corresponding to the address of the slave station 2 corresponding to the lamp 53 is maintained so as to continue to be sent out. Therefore, it becomes possible to continuously talk between the slave station 2 corresponding to the lamp 53 and the master station 1, and it is possible to confirm, for example, why the slave station 2 did not respond. Further, the output of the gate circuit 67 is used to drive the calling signal generator 69, and the generated signal sound is sent to the slave station 2 and continues to be played from the earphone 20.
remains lit. The collector 43 of the loop antenna 26 portion has three coils 43A and 43B as shown in FIG.
, 43C, the coils 43A and 438 are interposed and connected between the loop antennas 26A and 26B provided in parallel, and the receiver 44 is connected to the coil 43C that is coupled to both coils 43A and 438. . With this configuration, the transmitted signal from the transmitter 25 mounted on the loop antennas 26A, 26B and the received signal sent to the receiver 44 can be separated. Further, the coupler 42 consists of a pair of coils 42A and 43B coupled together as shown in FIG.
The receiver 40 is connected to the other coil 42B.

With this configuration, the output signal from the receiver 40 is delivered to the loop antenna 26 in a well-balanced manner. As described above, in the response broadcasting system according to the present invention, a master station 1 sends a signal to a large number of slave stations 2 in a time-division manner, and the slave stations 2 determine that the call is to their own station, and By turning on the response switch 35 within the allotted time when the response is captured, the signal is sent to the master station 1, and the master station 1 determines which slave station 2 the response is from and displays the corresponding display. Work like you do.

In this way, information (responses) can be quickly received from a large number of receivers (slave stations 2) to broadcasts from the master station 1, and the results of the responses are visually displayed all at once on the display device 13. This makes it possible to analyze information at a glance, making it possible to receive multiple items at the same time, which was previously impossible, and making it highly usable. Furthermore, this display is for each slave station 2.
Since the display is performed according to the address held by the terminal, even if there are a large number of slave stations, the display can be performed reliably without confusion. In addition, in this system, by turning on the switch 65 corresponding to the display lamp 53, a call can be made between a specific slave station and the master station, with the master station broadcasting and the slave station using the audio only for that station. Not only can the response status be displayed, but also the status of the slave station can be confirmed through a telephone call, which is extremely superior in terms of information transmission.

Further, as shown in FIG. 5, a switch 70 is inserted and connected between the output terminal of the regenerative amplifier 63 in the master station 1 and the input terminal of the transmission amplifier 18, and by turning on this switch 70, a specific Transmissions from a station can be transmitted to all slave stations. For example, all slave stations can listen to the dialogue between a specific slave station and the master station, and by visiting this particular slave station one after another, It is possible for all slave stations to communicate with other slave stations.

Next, to describe the functional peculiarities of the present invention, first, in terms of radio waves, the transmission radio waves of the slave station are emitted only during a very short time when the slave station assignment signal from the master station and the slave station address signal match. Therefore, there is no interference on the receiving side due to small deviations in many radio wave frequencies, and stable reception is possible, and the radio waves of the master station and slave station are both several 1 OW (master station) or several 1 dish W (
Since the radio waves are as weak as those of substations, it is easy to implement as long as notification or permission is required. Furthermore, the two-wire parallel conductor transmission section including the loop antenna installed within the area is an extremely simple facility, and the number of transmission channels can be easily increased if the parallel conductor overhead line is constructed in a three-dimensional manner. By increasing the number of carrier waves of the master station 1, it is possible to use multiple channels with the same transmission section. The response switch of the response section is not limited to a one-to-one response switch; if a multi-pole switch is used, the response contents can be accumulated. Power for the reverse transmission receiver installed close to the transmission section can be supplied from the master station, which is convenient in terms of operation. Although we have described the case where the master station and slave stations are connected by space, it can also be used in the case of a wired connection with an actual line and is highly effective. The display device is not limited to lamps, but light emitting diodes, cathode ray tube displays, plasma displays, etc. can also be used, and if this display device is combined with a computer, its effects will be expanded. In this embodiment, the selection signal is a serial pulse, but the use of parallel pulses also falls within the scope of the present claim. Although one example of the performance of the present invention has been described above, it is believed that its effects will be extended to various fields. As described above, according to the present invention, the master station transmits the selection signal in a time-sharing manner, and if there is a response, the master station determines which station the response is from, and displays the response results all at once on the display device. You can select a specific slave station as needed to make a call between the master station and the slave station, the response is quick, the response result can be seen at a glance, and the call can be broadcast to all slave stations. A response broadcasting system can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a transmission response system according to an embodiment of the present invention, FIG. 2 is a specific circuit configuration diagram of the transmission response system shown in FIG. 1, and FIG. 3 is a collector portion in FIG. 2. 4 and 5 are diagrams for explaining the diamond portions in FIG. 2, respectively. 1... Master station, 2... Slave station, 3...
Transmission section, 4...Slave station selection signal generation section, 8...
... Master station audio transmission amplifying section, 6... Master station transmitting and receiving section,
7...Slave station transmission/reception section, 8...Pre-station selection signal determination section, 9...Slave station audio reception amplification section, 10...
...Response section, 11...Slave station audio transmission amplification section,
12... Master station selection signal determination section, 13...
・Display device, 14... Master station audio reception amplification section, 1
6...Circuit holding section. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. A unique slave station selection signal assigned to each slave station, which is obtained by modulating pulses at regular intervals to a high frequency band of the entire voice signal band using a pulse modulator, is transmitted in a time-division manner. a transmitter of the master station transceiver unit that mixes the slave station selection signal generated by the slave station selection signal generator with an audio signal and transmits it from the transmission unit; A receiver of the slave station transceiver section receives the audio signal and the slave station selection signal sent from the machine, and the slave station selection signal received by this receiver is demodulated and the demodulated signal corresponds to the address of the slave station. A slave station selection signal determination unit that determines that the own station is selected when the signal is a signal, a slave station response unit that performs a response operation within the time when the own station is selected, and a response operation of this response unit. A transmitter of the slave station transmitting/receiving section that emits a response signal and an audio signal, a receiver of the master station transmitting/receiving section that receives the response signal and audio signal sent from the transmitter via the transmitting section, and A master station selection signal determination unit that determines which slave station the response signal received by the receiver is from, and a master station selection signal determination unit that displays an array of response states determined by the master station selection signal determination unit. A display device, and a circuit holding unit to which a signal from the master station selection signal determination unit is guided and which fixes the generation selection signal of the slave station selection signal generation unit to the address of a specific slave station to enable communication. A response broadcast system characterized by: 2. The response broadcasting system according to claim 1, wherein a loop antenna is used as the transmission section and signals are transmitted simultaneously with audio by guided radio. 3. One or more wires are provided in the loop antenna in parallel with the loop antenna, and these two wires constitute a two-wire parallel transmission path, which serves as a transmission path for reverse transmission of audio and signals. A response broadcasting system according to claim 1 or 2. 4. The response broadcasting system according to claim 1, which has a display device that arranges a large number of light emitting elements corresponding to all the slave stations and can display the response results all at once. 5. The response broadcasting system according to claim 1, comprising a display device configured using a cathode ray tube.