JPH0540893A - Security data collecting device - Google Patents

Abstract

PURPOSE:To collect the security data on the fires, the gas leaks, the intrusion of suspicious persons, etc., of each house via a communication circuit and the radio waves. CONSTITUTION:The necessary signals are transmitted from a data collector via a communication circuit 1 and then counted by a call counter 3. Then the signals are outputted from a setting counter 4 based on the set value of a counter setting part 2, and a main radio equipment (a) is connected to the circuit 1 via a hook SW 5. The signals received from the data collector are demodulated at a demodulating part 6 and identified at an identifying part 7. Then the identified signals are converted into the desired high frequency signals and radiated through an antenna 11 through a transmission part 10. The radio waves are received through an antenna 15 and demodulated at a demodulating part 17 via a reception part 16. Then the operation of a security detecting part 21 is decided via a control part 25. This deciding signal or the data received from the part 21 at occurrence of the abnormality decided at a deciding part 22 is converted into a high frequency signal at a modulating part 23 and radiated through the antenna 15 via a transmission part 24. The high frequency signal is received by the equipment (a) and converted into a desired signal at a modulating part 13. Then the desired signal is transmitted to the data collector via the circuit 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for installing a security device in each dwelling unit and collecting this data at a data collection source. Security data from a dwelling unit to a small group and transmitted from the small group to a data collection source via a communication line.

[0002]

2. Description of the Related Art A security device is installed in a general dwelling unit, etc., and when an abnormality such as a fire, gas leak, or intrusion of a suspicious person occurs, these are detected and notified to the data collection source, or In order to send and receive data or command signals when checking the operation of the security device by command, for example, a dedicated line is laid between the data collection source and each dwelling unit, and the command is sent using this dedicated line. Alternatively, there is one that collects data or collects data using a general telephone line.
However, the equipment cost is high because the usage rate is low when using a dedicated line, and because it is impossible to collect data etc. while the line is being used by a telephone etc. with a general telephone line, There are problems such as delays in reporting abnormal occurrences and problems in dealing with emergencies.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above point, and a plurality of dwelling units existing within the reach of a radio wave with a small electric power is a small group, and each dwelling unit is divided into smaller groups. A main radio that receives data wirelessly is installed,
Provide a door-to-door radio that transmits data from a security device that detects a fire, gas leak or intrusion of a suspicious person in each dwelling unit by radio wave, and connect the main radio of each small group to one communication line, When an abnormality occurs, the signal from the security device is notified from the door-to-door radio to the data collection source via the communication line via the main radio, or these main radios are sequentially called by the required signal from the data collection source, and the main radio is called. Provided is a security data collecting device which transmits and receives a signal or the like for inspecting the operation of a security device of each dwelling unit via a machine and a door-to-door wireless device.

[0004]

In order to solve the above-mentioned problems, the present invention provides a unit-by-unit data transmission means which is provided for each dwelling unit and which converts security data and the like into a required high frequency signal and sends out through radio waves, and a plurality of dwelling units. A small group data receiving means which is provided for each small group and which receives a radio wave from the door-to-door data sending means and demodulates it into data, and a dwelling unit of each dwelling unit received by a plurality of the small group data receiving means via a communication line or the like. Wide-area data collection means for collecting data, and presence / absence for setting absence of a dwelling unit in the door-by-door data transmission means
Absence setting unit, security detection unit that detects a fire, gas leak, intrusion of a suspicious person, a determination unit that determines a signal from the security detection unit according to the settings of the presence / absence setting unit, and in advance for identification of a dwelling unit A storage unit that stores the set dwelling unit code is provided, and the determination unit determines the data based on the detection of an abnormality by the security detection unit, and sends the dwelling unit code read from the storage unit, or a wide area data collection unit. A security data collecting device configured to send required data in response to a call via a smaller group data receiving means.

[0005]

Since the security data collecting device according to the present invention is configured as described above, when a security abnormality is detected in a dwelling unit, the security data and the like are transmitted by radio waves through the door-to-door radio set in each dwelling unit. And is received by the main radio installed in each small group consisting of the dwelling unit. The main radio demodulates the received radio waves into data, converts it into the required signal, and transmits it to the data collection source via the communication line. In addition, the main radio of each small group is sequentially called through the communication line with a required signal from the data collection source, and the individual unit radios of each dwelling unit of the small group are individually called.
Check the operation of the security device through the door-to-door radio.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a security data collecting device according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of a main part of an embodiment of a security data collection device according to the present invention, and FIG. 2 is a conceptual diagram of a small group of security data collection devices according to the present invention. In FIG. 1, a is a main radio that is installed for each small group for receiving data, etc., and b is a door-to-door radio that is installed in each dwelling unit for transmitting data, and is surrounded by a dotted line in FIG. A,
Areas B, C, and D indicate ranges in which radio waves of low electric power can be transmitted / received to / from the main radio 31, and this range is set as one small group and installed in each main radio 31 and each dwelling unit 32. It transmits and receives data via radio waves with the door-to-door radio.

[0007] The main radio (i) is installed in a small high place where each dwelling unit can be seen through in small groups, for example, in the upper part of a telephone pole, and is connected in parallel to the communication line 1 from the data collection source. A counter setting unit 2 sets a different numerical value for each small group. Reference numeral 3 denotes a call counter, which counts the number of times until the call signal is input and is completed once. Reference numeral 4 denotes a setting counter, which outputs a signal when the signal from the calling counter 3 matches the set value of the counter setting unit 2.
Reference numeral 5 is a hook switch, which off-hooks based on a signal from the setting counter 4 to connect the device to the communication line 1. A demodulation unit 6 demodulates a signal or the like from the data collection source sent via the communication line 1. Reference numeral 7 is an identification unit that identifies the signal from the demodulation unit 6. A memory unit 8 stores a sequence program for data collection, an identification code of its own small group, an identification code of each dwelling unit, and the like, and also records data from a door-to-door radio set in a data storage area. 9 is a control unit,
The identification code from the memory unit 8 and a signal or the like via the identification unit 7 are output to the transmission unit 10. The transmitter 10 converts the signal from the controller 9 into a high-frequency signal with a required low power and emits it via the antenna 11. Reference numeral 12 denotes a receiving unit, which receives a radio wave from the door-to-door radio set via the antenna 11 and demodulates it. A modulator 13 converts the data from the receiver 12 into a required signal for transmission through a communication line and sends the signal to the data collection source via the hook switch 5 and the communication line 1.

The door-to-door radio B is provided for each dwelling unit.
Reference numeral 15 is an antenna that receives a radio wave from the main radio device a. 16
The receiving unit receives a high frequency signal from the antenna 15, tunes to a required frequency, and amplifies it to an appropriate signal level. A demodulator 17 demodulates the high frequency signal from the receiver 16. 18
Is an identification unit that identifies the signal from the demodulation unit 17. Reference numeral 19 is the presence / absence setting unit, which is set to switch to "absence" when the dwelling unit is absent. A memory unit 20 stores the identification code of the dwelling unit, and the type code for identifying the type of data such as whether it is an inspection signal of the security device or security data. Reference numeral 21 is a security detection unit that detects a door, window opening, or the like for detection of fire, gas leakage, or intrusion of a suspicious person. Reference numeral 22 is a determination unit, which detects whether a signal from the security detection unit 21 such as opening a door / window is present / absent setting unit 19
Judgment is made based on the setting of. Reference numeral 23 is a modulation unit, which converts the signal from the security detection unit 21 or the determination unit 22 into a required high frequency signal. Reference numeral 24 denotes a transmission unit, which performs power amplification for emitting a high-frequency signal from the modulation unit 23 with a radio wave of low power and emits the amplified signal through the antenna 15.

Next, the operation of the security data collecting device according to the present invention will be described. The counter setting unit 2 has, for example, “1” for the small group A, “2” for the small group B, ...
Is set to a different numerical value in advance for each small group, such as “4”. A calling signal is transmitted from the data collection source via the communication line 1. This call signal is input to the call counters 3 of each small group and counting is performed,
The signal based on the count is input to the setting counter 4, compared with the signal from the counter setting unit 2, and the signal is output when they match.
The counting by the call counter 3 counts the number of times the call signal is input once each time the call signal starts input. For example, in the small group A, the counter setting unit 2 sets “1”.
Is set to, the signal is output from the setting counter 4 according to the signal of the count value 1 output from the calling counter 3 in the first calling signal. This signal is input to the hook switch 5 and goes off-hook, whereby the calling signal is stopped and the main radios of the small group A are connected to the communication line 1. And the next call signal (second time)
Then, the setting counter 4 of the small group B outputs a signal upon coincidence, the hook switch 5 is off-hooked, the calling signal is stopped, and the main radio is connected to the communication line 1. Similarly, in the small group D, the main radio is connected to the communication line 1 by the fourth call signal. Note that the counting of signals from the call counter 3 by the setting counter unit 4 is a required time set to collect data of all small groups, for example,
It will be reset after 12 hours.

When the signal from the data collection source is used to confirm whether each dwelling unit is at home or absent, or when the operation of the security device is inspected, the signal from the data collection source is transmitted through the communication line. , FSK (Frequency Shif
t Keying) system or DTMF (multi-frequency code) signal is converted and sent to the main wireless device b of each small group via the communication line 1. This signal is input to the demodulation unit 6 and demodulated into the original signal, and input to the identification unit 7 for identification. The identified signal is transmitted together with a required dwelling unit code on the basis of the sequence program read from the memory unit 8 via the control unit 9 and the transmission unit 10
To a high frequency signal of a required frequency, amplified to a small electric power, for example, 10 milliwatts, and emitted as a radio wave through the antenna 11. By setting the height of the antenna 11 appropriately, this radio wave is propagated in a range of, for example, a radius of 100 to 200 meters.
Make up a small group.

The radio wave from the antenna 11 is received by the antenna 15 of the door-to-door radio B, is input to the receiving unit 16, is tuned to the required frequency, is amplified to an appropriate signal level, and is input to the demodulating unit 17 to be demodulated. Then, the demodulated signal is compared with the identification code of the self-dwelling unit read from the memory unit 20 and the identification unit 18 to identify the match. Based on this identification, if it is a confirmation as to whether or not the user is at home, the determination unit 22 determines the setting of the presence / absence setting unit 19 via the control unit 25, and in the case of checking the operation of the security device, the security detection unit. Check if the operation of 21 is abnormal. Then, a type code corresponding to each signal read from the memory unit 20 is added in front of these data,
Input to the modulation unit 23 via the control unit 25, for example, the transmission unit
The signal is converted into a high frequency signal having a frequency different from that of the radio wave of 10, amplified to a signal of a small electric power such as 10 milliwatts through the transmission unit 24, and emitted as a radio wave through the antenna 15. This radio wave is received by the antenna 11 of the main radio B, is input to the receiving unit 12, is tuned to a required frequency, is amplified to an appropriate signal level, is demodulated, and is output as a digital signal. This digital signal is once recorded in the data storage area of the memory section 8 via the control section 9 in an area corresponding to the identification code of the dwelling unit. After collecting the data of all the dwelling units, the identification code of the self-small group read from the memory unit 8 is added, and the communication line 1 is provided through the modulation unit 13.
To a data collection source via the communication line 1. The signal from each dwelling unit may not be stored in the memory unit 8 and may be transmitted to the data collection source each time.

On the other hand, if the security detection unit 21 detects an abnormality, that is, if there is a fire or a gas leak, the signal from the security detection unit 21 is added with a type code for identifying the security data read from the memory unit 20. Then, the modulation unit 23 converts it into a required high-frequency signal via the control unit 25, emits a radio wave from the antenna 15 via the transmission unit 24, and notifies the data collection source through the communication line 1 via the main wireless device a. When a door or window opening is detected, the determination unit 22 determines the setting status of the presence / absence setting unit 19, and if the user is at home, no notification is given. However, the same notification as for a fire will be given.

The data to be sent to the data collection source is constructed as in the example of FIG. That is, in order to identify the start of data, for example, a start bit 41 including a bit having a width several times the width of a bit signal forming the data is provided,
Next, a small group code 42 for identifying the own small group is provided,
Subsequently, the dwelling unit code 43 set for each dwelling unit is arranged. Then, a type code 44 for identifying the type such as security data or inspection signal of the security device, next, data 45 for security etc. are arranged, and finally, an end bit 46 for identifying the end of data is provided.

[0014]

As described above, according to the security data collecting device of the present invention, the data and the like when an abnormality is detected in the security device of each dwelling unit consumes less power than the unit-specific radio installed in each dwelling unit. Is transmitted to the main radio of the small group to which each dwelling unit belongs, and the data received by each main radio is transmitted to the data collection source via one communication line. Therefore, there is no increase in equipment costs as in the case of laying a dedicated line for data collection for each dwelling unit, and data transmission is not possible while using a telephone etc. like when using a general telephone line. The present invention solves such a problem that it cannot be performed, and has an advantage that data can be transmitted immediately with relatively low equipment cost.

[Brief description of drawings]

FIG. 1 is a block diagram of essential parts of an embodiment of a security data collection device according to the present invention.

FIG. 2 is a conceptual diagram of a small group of security data collection devices according to the present invention.

FIG. 3 is an example of a data structure for a security data collection device according to the present invention.

[Explanation of symbols]

 1 communication line 2 counter setting unit 3 call counter 4 setting counter 5 hook switch 6 demodulation unit 7 identification unit 8 memory unit 10 transmission unit 11 antenna 12 reception unit 13 modulation unit 15 antenna 16 reception unit 17 demodulation unit 18 identification unit 19 present / Absence setting unit 20 Memory unit 21 Security detection unit 22 Judgment unit 23 Modulation unit 24 Transmission unit 31 Main radio 32 Wireless by unit A Small group

Claims (1)

[Claims] 1. A unit-by-unit data transmission unit which is provided for each dwelling unit and which converts security data and the like into a required high-frequency signal and sends out through radio waves; and a unit-by-unit data transmission unit which is provided for each small group consisting of a plurality of dwelling units. It comprises a small group data receiving means for receiving radio waves and demodulating into data, and a wide area data collecting means for collecting data of each dwelling unit received by the plurality of small group data receiving means via a communication line or the like. From the presence / absence setting unit for setting the absence or the like of the dwelling unit in the data transmission means, the security detection unit that detects a fire, a gas leak, or the intrusion of a suspicious person, or the security detection unit according to the settings of the presence / absence setting unit. Based on the detection of an abnormality by the security detection unit, a determination unit for determining the signal of the unit and a storage unit for storing a preset unit code for identifying the unit are provided. The data is judged by the judgment unit and is sent with the dwelling unit code read from the storage unit, or the required data is sent from the wide area data collection unit in response to a call through the small group data reception unit. A security data collection device characterized by the above.