JPH0615193U - CATV monitoring system - Google Patents

Abstract

(57) [Summary] [Purpose] To inform people outside the building of fires, gas leaks, and other abnormalities. [Structure] The dwelling unit information output from the dwelling unit terminal 100 to the coaxial cable 13 is captured by the audio signal output means 110 in the bidirectional amplifier 20 adjacent to the dwelling unit terminal 100.
Then, the audio signal output means 110 creates an audio signal for notifying the content according to the dwelling unit information, and outputs the audio signal to the coaxial cable 13. Then, the audio signal output to the coaxial cable 13 is converted into audio by an audio output means provided outdoors on the housing unit terminal 100 side and output.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a CATV monitoring system for monitoring fires, gas leaks, emergencies and the like in each dwelling unit by using a CATV coaxial cable network that supplies television waves to each home.

[0002]

[Prior art]

 Conventionally, a CATV monitoring system using the above-mentioned CATV coaxial cable network has been developed as a part of home security. FIG. 5 is a block diagram showing the general configuration of this system. In this figure, the head-end device 2 of the CATV management center 1 sends a monitoring status request signal to the coaxial cable (co-listening line) 13 by the polling / selecting method to the security interface 11 installed on the outer wall of the dwelling unit 3. Is output.

Upon receiving this monitoring status request signal, the security interface 11 inputs the output of various sensors (fire, gas leak, emergency, etc.) 5 from the housing information panel 8 of the home terminal 4, and outputs the result to the housing information. The signal is returned to the CATV management center 1 via the coaxial cable 13. Then, information based on the returned home information signal is displayed on the monitor (not shown) of the console 6 in the management center 1. In this case, if there is an abnormality, a display indicating the abnormality is displayed and an alarm is issued. The term "unusual" means, for example, when a robber or a fortified person enters the dwelling unit, or when the elderly suddenly feels ill.

Here, as the monitoring state request signal output from the CATV management center 1, a signal having a frequency falling within the 70 MHz to 450 MHz band such as a television broadcast signal, an FM stereo broadcast signal, and an announcement broadcast signal is used. On the other hand, as the house information signal output from the security interface 11, a signal having a frequency in the 10 MHz to 50 MHz band is used. For example, when the CATV management center 1 outputs a 70 MHz monitoring state request signal, the security interface 11 outputs a 40 MHz housing information signal.

Since the television broadcast signal including the monitoring state request signal, the FM stereo broadcast signal, the announcement broadcast signal and the like are transmitted from the CATV management center 1 to the home terminal 4, they are collectively referred to as a downlink signal. be called. On the other hand, the house information signal is sent from the home terminal 4 to the CATV management center 1 and is also called an upstream signal.

The home terminal 4 includes a notification broadcast receiver 7, a home information board 8 and a telephone 9. The notification broadcast receiver 7 receives general broadcasts (BGM, information on commercial facilities / educational facilities, notification of garbage collection and blackouts from residents' associations), and emergency broadcasts (earthquake, wind and flood damage, fire accidents). is there. The house information board 8 inputs signals output from various sensors (fire sensor, gas leak sensor, emergency button, etc.) 5 arranged at important points in the dwelling unit 3 and outputs the result. The output result is sent to the CATV management center 1 via the security interface 11.

Reference numeral 10 is an AV (audiovisual) system such as a television or a stereo. The security interface 11 is composed of a modulator / demodulator (modem), etc., and outputs downlink signals such as a monitoring status request signal, a television broadcast signal, an FM stereo broadcast signal and an announcement broadcast signal, which are frequency-converted and output as a carrier wave. It demodulates and outputs each downlink signal to the home terminal 4. When the monitoring state request signal is detected, the house information, which is the upstream signal output from the house information board 8 of the home terminal 4, is frequency-converted and sent to the CATV management center 1 as a carrier wave.

A bidirectional protector 12 is used for pulling the coaxial cable 13 into the dwelling unit 3. Reference numeral 14 denotes a tap-off (branching device, distributor), which branches or distributes a lower signal on the coaxial cable 13 and supplies it to each dwelling unit. A bidirectional amplifier 15 amplifies a signal attenuated in the middle of the coaxial cable 13. Reference numeral 16 denotes various antennas such as FM, TV antenna, BS antenna and CS antenna.

Here, a normal television broadcast signal, an FM stereo broadcast signal, etc. are captured by the antenna 16 and input to the headend device 2. Then, the data is input from the headend device 2 to the AV system 10 in the dwelling unit 3 via the coaxial cable 13, the bidirectional amplifier 15, the tap-off 14, the protector 12 and the security interface 11, respectively.

The announcement broadcast signal and the monitoring status request signal are sent from the headend device 2 via the coaxial cable 13, the bidirectional amplifier 15, the tap-off 14, the protector 12 and the security interface 11 to the home terminal in the dwelling unit 3. 4 is supplied.

[0011]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional CATV monitoring system, when an abnormality occurs in a certain dwelling unit, the person in the dwelling unit in which the abnormality has occurred, the surveillance staff resident in the CATV management center 1, and the CATV management center 1 Although other people in the dwelling unit who heard the announcement broadcast could know the abnormality, there was a problem that people outside the road or park could not notice the abnormality and could not take appropriate actions. . In addition, when the owner of the dwelling unit where the abnormality occurs is out of the house and not present, the abnormality cannot be noticed. In addition, if there are a large number of people, you will miss a situation that would be helpful.

Therefore, an object of the present invention is to provide a CATV monitoring system capable of notifying an abnormality even to a person outdoors such as a road or a park.

[0013]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the CATV monitoring system according to the invention of claim 1 is provided in a plurality of dwelling units, and outputs of various sensors (fire, gas leak, emergency, etc.) installed inside and outside the dwelling units are taken in, and housing information is obtained. Unit for outputting to the coaxial cable network as a unit, a monitoring unit for requesting the housing information from each unit unit via the coaxial cable network, and a plurality of bidirectional amplification units connected to the coaxial cable network. In a CATV monitoring system equipped with, for providing information in accordance with the housing information (for example, “fire has occurred, please check the site.”) Provided in each of the above-mentioned two-way amplification means. An audio signal output means for outputting an audio signal to the coaxial cable network, and the audio signal output means arranged adjacent to each of the dwelling unit terminals serving a part of the coaxial cable network. The audio signal output from the force means and having an audio output means for converting the speech.

A CATV monitoring system according to a second aspect of the present invention is a dwelling unit terminal that is installed in a plurality of dwelling units, captures the outputs of various sensors installed inside and outside the dwelling units, and outputs it as house information to a coaxial cable network. And a monitoring means for outputting abnormality information to each of the housing units via the coaxial cable network, and a plurality of bidirectional amplification means connected to the coaxial cable network. A part of the coaxial cable network is used together with an audio signal output means provided in each of the bidirectional amplification means for outputting an audio signal for notifying the content according to the abnormality information to the coaxial cable network. A voice output unit that is arranged in the vicinity of each of the dwelling unit terminals and that converts the voice signal output from the voice signal output unit into a voice. The stage is characterized in that, when the abnormal information which matches the previously given unique address and the address outputted from the monitoring means is received, the speech signal is outputted from the speech signal output means.

[0015]

[Action]

 According to the invention of claim 1, when housing information is output from the dwelling unit terminal to the coaxial cable network in response to a request from the monitoring means, this housing information is bidirectionally amplified, which is installed closest to the dwelling unit terminal. Be taken into the means. Then, when an abnormality is confirmed in the home information by the bidirectional amplifying means, an audio message for making a notification according to the abnormality is generated as an audio signal, and the audio output means (via the coaxial cable network). Speaker). As a result, a voice message is output from the voice output means to notify the abnormality (for example, "A fire has occurred, please check the site.").

Therefore, a person who is outdoors near the dwelling unit in which the abnormality has occurred can also know that the abnormality has occurred in the neighboring dwelling unit or his or her own dwelling unit.

According to the second aspect of the invention, the abnormality information for notifying the abnormality from the monitoring means is directed to the bidirectional amplifying means arranged at the most convenient position in the vicinity of the dwelling unit where the abnormality has occurred. Is output to. When the abnormal information is taken into the intended bidirectional amplifying means, a voice message for making a notification according to the abnormality is generated as a voice signal and supplied to the voice output means via the coaxial cable network. As a result, a voice message for notifying the abnormality is output from the voice output means.

Therefore, similarly to the above, a person who is outdoors near the dwelling unit in which the abnormality has occurred can also know that the abnormality has occurred in the neighboring dwelling unit or his / her own dwelling unit.

[0019]

【Example】

 Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a CATV monitoring system according to the present invention. In this figure, the same parts as those in FIG. 5 described above are designated by the same reference numerals and the description thereof will be omitted.

In the present embodiment, the bidirectional amplifier 20 receives the home information signal from the security interface 11, creates a voice message in accordance with the contents, converts the voice message into a voice signal, and outputs the voice signal to the coaxial cable 13. Provide a function. Further, the filter 22 and the speaker 23 are connected in series to the empty terminal of the tap-off 14 so that the audio signal from the bidirectional amplifier 20 is supplied. In this case, the bidirectional amplifier 20 and the tap-off 14 are arranged at a uniform distance to all the dwelling units in the coaxial cable network to which they belong. In other words, it is located in the position where the abnormality can be transmitted most efficiently to people outside the common coaxial cable network.

The bidirectional amplifier 20 demodulates a house information signal output from the security interface 11 of the dwelling unit 3 in addition to the down amplifier 24 and the up amplifier 25 included in a conventional bidirectional amplifier (not shown). A demodulator (demodulator) 26, and a CPU 27 that decodes the house information signal demodulated by the demodulator 26 and executes a process of outputting an address designating voice data corresponding to a voice message from the result. , An I / O expansion port 29 for supplying the address output from the CPU 27 to the voice synthesizing IC 28, an amplifier unit 30 for amplifying the voice signal output from the voice synthesizing IC 28, and a voice band frequency (for example, 300 Hz to A filter 31 for extracting only a signal of 3 KHz) and a capacitor 32 for cutting a direct current component are provided. .

The CPU 27 is a so-called one-chip CPU, and has a ROM and a RAM inside. The RAM is used in the operation of the CPU 27 itself, and the ROM stores a program for controlling the CPU 27 itself and a plurality of addresses. Each of the plurality of addresses written in the ROM designates each of the plurality of voice data written in the voice synthesis IC 29 and is associated in advance.

The CPU 27 inputs the house information signal output from the security interface 11 of each dwelling unit through the coaxial cable 13, and based on the presence / absence of the contents of the house information signal indicating fire, gas leakage, emergency, etc. The address corresponding to the actual abnormality is read from its own ROM. For example, if the content that indicates that a fire has occurred is included, the address that specifies the audio data of "A fire has occurred, please check the site." Is read from the ROM.

The voice synthesizing IC 29 previously stores a plurality of voice data in association with the addresses, reads the voice data in accordance with the addresses supplied from the CPU 27, and synthesizes voices based on the voice data. And combine them, and then convert them into audio signals and output. In this case, as the voice data, in addition to the above-mentioned "Fire has occurred, please check the site." In addition to "A gas leak has occurred, turn off the fire and then check the site." Please, ”and“ An emergency situation has occurred, please be cautious and act. ”

Here, FIG. 2A shows the format of the house information signal, and includes an address section indicating an address for identifying the security interface 11 and an abnormality information section indicating a fire, a gas leak, an emergency, and the like. , BCC (block check code) part. Note that FIG. 2B shows the types of the monitoring state request signal and the announcement transmission signal in the downlink signal, which are composed of an address section, a control command section, and a BCC section. In this case, the monitoring state request signal uses a command as a control command to instruct the security interface 11 to monitor and give a notification of the result. On the other hand, in the announcement broadcast signal, a command for making an announcement is used as a control command.

The voice signal output from the voice synthesizing IC 20 is amplified to a predetermined level by the amplifier unit 30, and then only the signal component in the voice frequency band is extracted by the filter 31 and is output to the coaxial cable 13 via the capacitor 32. Is output. In this case, since the audio signal is blocked by the filter (not shown) of the up amplifier 25, it does not flow in the up direction but only in the down direction.

On the other hand, the filter 22 extracts only the signal of the frequency in the audio band (for example, 300 Hz to 3 KHz) like the filter 31, and the audio signal output from the bidirectional amplifier 20 is extracted by the filter 22. , To the speaker 23. As a result, a voice message is output from the speaker 23. For example, in the event of a fire, “Fire has occurred, please check the site. The voice is output.

Of the tap-offs connected to the bidirectional amplifier 20, it is desirable that the filter 22 and the speaker 23 be connected to those at even positions with respect to each dwelling unit, and that they be installed as mounting locations. Is preferably a pole such as a telephone pole. If you cannot find a suitable tap-off, you may add a new one. In this case as well, it goes without saying that the one that can pass the voice band must be used.

In this way, the bidirectional amplifier 20 constantly monitors the abnormality information section of the house information signal, and when it determines that there is an abnormality, it outputs an audio signal having a content corresponding to the abnormality. Then, after the output audio signal is extracted by the filter 22, it is output as audio from the speaker 23.

The home terminal 4, the security interface 11, and the protector 12 constitute a dwelling unit terminal 100 (FIG. 5). Further, the headend device 2 and the console 6 (FIG. 5) constitute the monitoring means 110. The bidirectional amplifier 20 corresponds to bidirectional amplification means. The demodulator 26, the CPU 27, the I / O expansion port 28, the voice synthesizing IC 29, the amplifier 30, the filter 31, and the capacitor 32 constitute the voice signal output means 120. Further, the filter 22 and the speaker 23 constitute a voice output means 130.

[0031] Operation will now be described with reference to flow charts shown in FIG. 3 for monitoring the operation of the CATV monitoring system according to the above configuration. After the power is supplied, first, in step S1, it is determined whether or not there is a house information signal. If it is determined in this determination that there is a house information signal, the process proceeds to step S2, and if it is determined that there is no house information signal, the process returns to the main flowchart (not shown).

In step S2, it is determined whether or not a fire has occurred. That is, the CPU 27 inputs the house information signal from the security interface 11. Then, the abnormality information part of the input house information signal is decoded and it is determined whether or not there is a content indicating a fire. If it is determined that there is no content indicating a fire in this determination, the process proceeds to step S3. On the other hand, if it is determined that there is a content indicating a fire, the process proceeds to step S4.

When it is determined that there is content indicating a fire and the process proceeds to step S4, a voice message for notifying a fire is output. That is, the CPU 27 generates an address designating a voice message for notifying a fire and supplies it to the voice synthesis IC 29 via the I / O expansion port 28.

When an address is supplied to the voice synthesizing IC 29, voice data corresponding to this address is read out, and voice synthesis and combination are performed according to this voice data. Then, after being converted into an audio signal, it is supplied to the amplifier 30. The audio signal amplified by the amplifier 30 is output to the coaxial cable 13 via the filter 31 and the capacitor 32, respectively. Then, the audio signal supplied to the coaxial cable 13 is supplied from the tap-off 21 to the speaker 23 via the filter 22. As a result, the speaker 23 reads “A fire has occurred, please check the site. A voice message saying “” will be output. The output of this voice message is repeated until the output of housing information is stopped.

On the other hand, if it is determined in step S2 that there is no content indicating a fire in the abnormality information section of the housing information and the process proceeds to step S3, whether there is a content indicating a gas leak in the abnormality information section of the housing information is determined. Is determined. In this determination, if it is determined that there is no content indicating gas leakage, the process proceeds to step S5, and if it is determined that there is content indicating gas leakage, the process proceeds to step S6.

When it is determined that there is a content indicating a gas leak and the process proceeds to step S6, a voice message for notifying the gas leak is output. That is, the CPU 27 generates an address designating a voice message for notifying a gas leak, and supplies it to the voice synthesis IC 29 via the I / O expansion port 28.

When an address is supplied to the voice synthesizing IC 29, voice data corresponding to this address is read out, and voice synthesis and combination are performed according to this voice data. Then, after being converted into an audio signal, it is supplied to the amplifier 30. The audio signal amplified by the amplifier 30 is output to the coaxial cable 13 via the filter 31 and the capacitor 32, respectively. The audio signal supplied to the coaxial cable 13 is supplied from the tap-off 21 through the filter 22 to the speaker 23. As a result, the speaker 23 said “A gas leak has occurred, turn off the fire, and then check the site. The voice message is output. The output of this voice message is repeated until the output of the home information is stopped.

In addition, in the determination in step S3, when it is determined that there is no content indicating a gas leak and the process proceeds to step S5, it is determined whether or not the abnormality information section of the housing information includes content indicating an emergency. In this determination, if it is determined that there is no content indicating an emergency, the process returns to step S1, and if it is determined that there is a content indicating an emergency, the process proceeds to step S7, and a voice message indicating the emergency is output. That is, the CPU 27 generates an address designating a voice message for notifying an emergency and supplies it to the voice synthesis IC 29 through the I / O expansion port 28.

When the address is supplied to the voice synthesis IC 29, the voice data corresponding to this address is read out, and voice synthesis and combination are performed according to this voice data. Then, after being converted into an audio signal, it is supplied to the amplifier 30. The audio signal amplified by the amplifier 30 is output to the coaxial cable 13 via the filter 31 and the capacitor 32, respectively. The audio signal supplied to the coaxial cable 13 is supplied from the tap-off 21 through the filter 22 to the speaker 23. As a result, the speaker 23 says, "An emergency has occurred. Please act with caution." The voice message “” is output. The output of this voice message is repeated until the output of housing information is stopped.

Application Example In the above embodiment, the bidirectional amplifier 20 inputs the house information signal and outputs the voice message based on the content of this signal. However, the bidirectional amplifier 20 directly outputs the voice message. An amplifier may be designated and the bidirectional amplifier may be informed of the abnormality. In this case, it is necessary to assign addresses to all bidirectional amplifiers. Actually, the address may be written in the ROM of the CPU 27 of the bidirectional amplifier 20 and a program for performing processing according to the address may be added. Although not shown, the bidirectional amplifier that has been subjected to such a process is given the reference numeral 20A and its operation will be described below.

FIG. 4 is a flowchart for explaining the operation of the bidirectional amplifier when designating the bidirectional amplifier. In this flowchart, first, in step S10, the bidirectional amplifier 20A determines whether or not the address in the abnormality information output from the CATV management center 1 matches its own address. The same operation as the flow chart in FIG. 3 is performed.

That is, in step S11, it is determined whether or not there is a content indicating a fire, and if there is, a voice message for notifying the fire is output in step S12. On the other hand, if there is not, it is determined in step S13 whether or not there is a content indicating gas leakage. In this determination, if there is no content indicating gas leak, the process proceeds to step S14, and if there is, the process proceeds to step S15 to output a voice message notifying the gas leak.

If there is no content indicating gas leakage and the process proceeds to step S14, it is determined whether or not there is content indicating an emergency. If there is no content indicating an emergency, the process returns to step S10, and if there is, a voice message notifying the emergency is output in step S16.

Although the bidirectional amplifier 20 is provided with the function of outputting the audio signal in the above embodiment, the invention is not limited to this, and it may be provided, for example, at tap-off (the same applies to the application example).

Although the speaker 23 is provided separately from the bidirectional amplifier 20 in the above embodiment, it may be provided in the bidirectional amplifier 20. The speaker may be built in the bidirectional amplifier 20 while the speaker 23 is separate from the bidirectional amplifier 20. In this case, the use of the built-in speaker can be prohibited by connecting a switch in series with the built-in speaker (the same applies to the application example).

[0046]

[Effect of device]

 According to the present invention, a bidirectional amplifier provided closest to a dwelling unit in which an abnormal situation has occurred generates an audio signal indicating an abnormality, and connects the audio signal to the bidirectional amplifier to Since it is supplied to a speaker installed in a position where it can be heard and output as a voice message, it is possible to inform people other than the resident outside that something is wrong with a nearby dwelling unit. You can This makes it possible to take appropriate actions even when outdoors, for example, it is possible to deal with situations where it would be helpful if there were a large number of people.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a CATV monitoring system according to the present invention.

2A and 2B are diagrams showing various signal types used in the CATV monitoring system of the embodiment, FIG. 2A is a diagram showing a house information signal type, and FIG. 2B is a monitoring state request signal. It is a figure which shows the model of an announcement broadcast signal.

FIG. 3 is a flowchart showing a monitoring operation of the CATV monitoring system of the embodiment.

FIG. 4 is a flowchart showing a monitoring operation of a CATV monitoring system which is an application example of the same embodiment.

FIG. 5 is a block diagram showing a configuration of a conventional CATV monitoring system.

[Explanation of symbols]

 1 CATV Management Center 2 Head End Device 3 Dwelling Unit 4 Home Terminal 5 Various Sensors 11 Security Interface 12 Protective Device 13 Coaxial Cable 14 Tap-off 20 Bidirectional Amplifier (Bidirectional Amplifying Means) 22 Filter 23 Speaker 24 Down Amp Unit 25 Up Amp Unit 26 Demodulator 27 CPU 28 I / O expansion port 29 Voice synthesis IC 30 Amplifier 31 Filter 32 Capacitor 100 Dwelling unit terminal 110 Monitoring means 120 Voice signal output means 130 Voice output means

Front page continuation (72) Inventor Junichi Narimiya 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Co., Ltd. (72) Naoya Matsuoka 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Co., Ltd. Company (72) Inventor Hiroshi Shima 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Co., Ltd. (72) Inventor Atsushi Manmoto 2-1043 Kamiosaki, Shinagawa-ku, Tokyo Ho Chiki Co., Ltd. (72) Inventor Kenji Kato 2-1043, Kamiosaki, Shinagawa-ku, Tokyo Hochiki Co., Ltd. (72) Inventor Yoshiaki Fuwa 2-1043, Kamiosaki, Shinagawa-ku, Tokyo, Hochiki Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A dwelling unit terminal which is provided in a plurality of dwelling units, captures outputs of various sensors installed inside and outside the dwelling unit, and outputs it to a coaxial cable network as house information, and each dwelling unit terminal via the coaxial cable network. A monitoring means for requesting the housing information for the housing, and a plurality of bidirectional amplification means connected to the coaxial cable network, the CATV monitoring system comprising: And a voice signal output means for outputting a voice signal for notifying the content according to the coaxial cable network to the coaxial cable network, and the voice signal is disposed in the vicinity of each of the residential unit terminals that serve a part of the coaxial cable network. A CATV monitoring system, comprising: a voice output unit that converts the voice signal output from the output unit into a voice. 2. A dwelling unit terminal provided in a plurality of dwelling units, which captures outputs of various sensors installed inside and outside the dwelling unit and outputs the dwelling unit information to a coaxial cable network, and each dwelling unit terminal via the coaxial cable network. In the CATV monitoring system, a monitoring means for outputting abnormality information to the bidirectional amplification means, and a plurality of bidirectional amplification means connected to the coaxial cable network are provided. A voice signal output means for outputting a voice signal for notifying the content of the following to the coaxial cable network, and the voice signal output means, which is arranged in the vicinity of each of the residential unit terminals that serve a part of the coaxial cable network. Audio output means for converting the audio signal output from the means into audio, and each of the bidirectional amplification means outputs a unique address given in advance and the monitoring means. A CATV monitoring system, wherein a voice signal is output from the voice signal output means when the abnormal information matching the applied address is received.