JP7195830B2 - seismic observation system - Google Patents

Description

The present invention relates to an earthquake observation system.

A seismic observation system for a structure (e.g., building) comprises a plurality of seismic sensors (e.g., accelerometers) installed on a plurality of floors (floors), and a data recording device connected to each seismic sensor by a cable. There is known a system that observes the damage (damage) status of a building due to seismic motion based on a signal output from a building (see, for example, Patent Document 1).

JP 2013-254239 A

In the seismic observation system described above, the seismic sensors and data recording devices are connected by cables. ), and the wiring work is time-consuming. This has been a factor in increasing the cost of the seismic observation system.

It is also conceivable to use wireless communication between the seismic sensor and the data recording device. etc., there is a problem that communication takes time.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to reduce costs and improve communication performance.

To achieve this object, a seismic observation system of the present invention is a seismic observation system for a structure having a plurality of layers, comprising seismic sensors respectively provided in the plurality of layers, and signals output from the seismic sensors. A transmitter for transmitting a signal, comprising: a single transmitter provided for each group composed of the seismic sensors less than the number of layers of the structure; and a single transmitter provided outside the structure to transmit the signal. a single external server for receiving, said external server receiving said signal emitted from said transmitter via an internet line, said transmitter having a wired connection with each seismic sensor of said group. and is not wired to the external server .
According to such an earthquake observation system, it is possible to reduce costs and improve communication performance.

In this seismic observation system, a through hole is provided at the boundary of the adjacent layers, and the seismic sensors and the transmitters installed in different layers in the group are wired through the through hole. A cable connection is desirable.
According to such an earthquake observation system, communication can be reliably performed between the seismic sensors and transmitters installed on different layers.

In this seismic observation system, the structure is a portion along the direction in which the plurality of layers overlap, the portion provided with the through hole at the boundary of each layer, and separated from other chambers. Preferably, the seismic sensor and the transmitter are installed at the part of the structure.
According to such a seismic observation system, it is not necessary to provide holes for wiring cables in the walls that divide the rooms.

In such a seismic observation system, it is desirable that the portion is an EPS portion or a PS portion.
According to such a seismic observation system, the through holes provided in the EPS portion or the PS portion can be used for the wiring of wired cables, and the cost can be further reduced.

In such a seismic observation system, the plurality of layers may be fire-zoned layers.
According to such an earthquake observation system, the communication performance can be significantly improved compared to the case where the communication between the earthquake sensor and the transmitter is performed wirelessly.

According to the present invention, it is possible to reduce costs and improve communication performance.

It is a figure which shows the structure of the earthquake observation system of a 1st comparative example. It is a figure which shows the structure of the earthquake observation system of a 2nd comparative example. It is a figure which shows the structure of the earthquake observation system of 1st Embodiment. It is a figure which shows the structure of the earthquake observation system of 2nd Embodiment.

An embodiment of the present invention will be described below with reference to the drawings. Before explaining the earthquake observation system of this embodiment, first, a comparative example will be explained.

===Comparison example===
<<First Comparative Example>>
FIG. 1 is a diagram showing the configuration of an earthquake observation system of a first comparative example.

The earthquake observation system shown in FIG. 1 includes an earthquake sensor 200 , a data recording device 300 , a wired cable 400 and an external server 500 . The seismic sensor 200 and the data recording device 300 are installed inside the building 10 , and the external server 500 is installed outside the building 10 .

The building 10 is a 10-story (+PHF room) building. In addition, the building 10 includes an elevator shaft 12 and an EPS room 14 (corresponding to an EPS part). For example, floors (layers) adjacent above and below the building 10 are partitioned by floors 11 for fire protection. The elevator shaft 12 is a vertically (up and down) long space for an elevator (not shown) to ascend and descend. The EPS room 14 is a small space that is separated from other rooms in the building 10 so that main lines (cables, piping wiring), etc. of electrical equipment can pass in the vertical direction (layer overlapping direction). A through hole (here, not shown) penetrating vertically is formed in the floor 11 (boundary of layers) of the EPS chamber 14, and the main line (wiring, etc.) is passed through this through hole. A PHF room is a room such as a staircase or an elevator tower built on the roof.

The earthquake sensor 200 is provided on each floor of the building 10, respectively. Then, the seismic sensor 200 detects and outputs the acceleration during an earthquake at its installation position (floor). The seismic sensor 200 is installed in a room other than the EPS room 14 (here, a room adjacent to the EPS room 14).

The data recording device 300 is installed in the EPS room 14 on the lowest floor (first floor) of the building 10, and is connected to the seismic sensors 200 on each floor by wired cables 400 so as to be able to communicate with each other. The data recording device 300 also has a storage unit, a CPU (arithmetic processing unit), and the like. The storage unit is a portion that stores data and the like, and is composed of, for example, a hard disk or memory. The storage unit also contains a response calculation program that calculates the response of the building 10 using detection data detected by each seismic sensor 200, a determination program that determines the damage level of the building 10 based on the response value, and the like. stored in advance. The CPU performs various calculations based on programs.

The data recording device 300 receives and records detection data (signals) from the plurality of seismic sensors 200, analyzes the detection data using the above program, etc., and evaluates damage to the building 10 from the analysis results. I do. Also, the data recording device 300 transmits (transmits) these data to the external server 500 .

Wired cable 400 is a conductive cable, and is provided for each seismic sensor 200 (that is, corresponding to seismic sensor 200 on each floor). One end of the wired cable 400 is connected to the seismic sensor 200 and the other end is connected to the data recording device 300 .

The external server 500 is communicably connected (wired connection in this case) to the data recording device 300 . The external server 500 then transmits and receives data (signals) to and from the data recording device 300 .

In addition, the external server 500 has a storage unit, a CPU (arithmetic processing unit), etc., and stores data (various data of the building 10) received from the data recording device 300, Diagnose the results of damage assessment. In this example, the data recording device 300 performs the damage assessment of the building 10 , but the present invention is not limited to this, and the external server 500 may perform the damage assessment of the building 10 .

In the case of this first comparative example, a wired cable 400 is required between the seismic sensor 200 on each floor and the data recording device 300, respectively. Therefore, the more floors the building 10 has (that is, the higher the building 10 is), the longer the wiring distance of the wired cable 400 (increases the required amount of cable), and the more laborious the wiring work. For example, in the case of FIG. 1 (first comparative example), a long wired cable 400 is required to connect the earthquake sensor 200 on the 10th floor and the data recording device 300 . Moreover, it takes time and effort to route the long wired cable 400 between the first floor and the tenth floor. Furthermore, since the wire cables 400 to each floor are passed through the through-holes in the floor 11 of the lower floors, there is a possibility that all of these wire cables 400 may not fit in the through-holes formed in the EPS room 14. be. In this case, a through hole must be provided separately.
Thus, the cost of the earthquake observation system of the first comparative example may increase.

<<Second Comparative Example>>
FIG. 2 is a diagram showing the configuration of an earthquake observation system of a second comparative example. Note that the configuration of the building 10 is the same as in FIG.

The earthquake observation system of the second comparative example includes a child device 20 , a parent device 30 and an external server 50 .

In addition to the same function as the earthquake sensor 200 of the first comparative example (the function of detecting and outputting the acceleration during an earthquake), the child device 20 has a communication function of transmitting and receiving the detection result (data) of the sensor by wire or wirelessly. have. Here, the slave device 20 is transmitting data wirelessly. The handset 20 is arranged on each floor.

In addition to the same functions as the data recording device 300 of the first comparative example, the parent device 30 has a communication function for transmitting and receiving data (signals) output from the child device 20 by wire or wirelessly. In addition, the parent device 30 is provided for each group composed of the child devices 20 less than the number of floors (floors) of the building 10 . In this example, four groups are provided, and one parent device 30 (four in total) is arranged for each group. These four base units 30 are designated as 30A, 30B, 30C, and 30D in order from the top. By providing the parent device 30 for each group in this way, it is possible to prevent the communication from the child devices 20 from concentrating on one parent device 30 .

The external server 50 is provided outside the building 10, and communicates with each master device 30 (master devices 30A, 30B, 30C, and 30D) via an Internet line or the like (receives data wirelessly from the master device 30). do). The configuration of the external server 50 is the same as that of the external server 500 of the first comparative example except that wireless communication is possible.

In the case of this second comparative example, since the floor 11 and walls of the building 10 that are fireproof partitioned become obstacles to wireless communication, it is difficult to transmit and receive data between the slave unit 20 and the master unit 30 installed on different floors. may become In addition, since the communication speed of wireless communication is inferior to that of wired communication, for example, when the amount of data communication between child device 20 and parent device 30 is large, communication takes longer than in the first comparative example (communication speed delay).

===First embodiment===
<<About the configuration of the seismic observation system>>
FIG. 3 is a diagram showing the configuration of the earthquake observation system of the first embodiment. Parts having the same configurations as those of the above-described comparative example are denoted by the same reference numerals, and descriptions thereof are omitted.

The earthquake observation system of this embodiment includes a child device 20 , a parent device 30 , a wired cable 40 and an external server 50 .

The cordless handset 20 (corresponding to an earthquake sensor) is arranged on each floor of the building 10 (10 in total) as in the second comparative example.

A master device 30 (corresponding to a transmitter) is provided for each group (every two or three slave devices 20) as in the second comparative example. However, in the present embodiment, the slave device 20 and the master device 30 are connected (wired connection) by a wired cable 40 to be described later. For example, the parent device 30A installed on the highest (ninth floor) of the parent devices 30 is connected by wire to the child devices 20 (three child devices 20) on the eighth to tenth floors. Further, for example, the master device 30D installed at the bottom (first floor) of the master devices 30 is connected by wire to the slave devices 20 (two slave devices 20) on the first and second floors. Further, the master device 30 of this embodiment has a wireless communication function such as wifi.

Each parent device 30 receives (receives) the data (signal) output from each child device 20 belonging to the same group via the wired cable 40 . Then, each parent device 30 transmits (transmits) the received data and the like to the external server 50 via the Internet line. and the master unit 30. In this embodiment, each child device 20 and parent device 30 belonging to a group are connected (wired connection) by a wired cable 40 . When connecting the slave unit 20 and the master unit 30 on different installation floors, a through hole 11a is provided in the floor 11, and the wired cable 40 is passed through the through hole 11a. For example, in the case of the uppermost group in FIG. 3 (the group composed of the slave units 20 on the 8th to 10th floors), through holes 11a are formed in the floors 11 on the 9th and 10th floors. The cordless handset 20 on the 10th floor and the main unit 30A on the 9th floor are connected by a wired cable 40 through the through hole 11a in the floor 11 on the 10th floor. Also, the cordless handset 20 on the 8th floor and the main unit 30A on the 9th floor are connected by a wired cable 40 via the through hole 11a in the floor 11 on the 9th floor. Since the same applies to other groups, the description is omitted.

In the present embodiment, since the child devices 20 and the parent device 30 are connected by the wired cables 40 for each group, the overall wiring length of the wired cables 40 is the same as the overall wiring length of the wired cables 400 of the first comparative example. shorter in comparison. As a result, the required amount of cables can be reduced, and the labor for wiring work can be reduced.

In addition, in the present embodiment, since each child device 20 and the parent device 30 of the group are directly connected by the wired cable 40, compared to the second comparative example (wireless communication), communication speed and stability are improved. can be made

An external server 50 (corresponding to a receiver) receives a signal transmitted from each master device 30 (master devices 30A, 30B, 30C, 30D) via the Internet line or the like, as in the second comparative example. Then, based on the received signal (data), damage evaluation and diagnosis of the building 10 are performed.

As described above, in the present embodiment, a single parent device 30 (parent devices 30A to 30D) is provided for each group composed of child devices 20 less than the number of floors (number of layers) of the building 10, Each slave device 20 belonging to the group and the master device 30 are connected (wired connection) with a wired cable 40 . Moreover, the master device 30 and the external server 50 are not connected by wire, and perform wireless communication via the Internet line. As a result, the wiring length of the wired cable 40 can be shortened (the amount of cable can be reduced) and the wiring work can be simplified, so that the cost can be reduced as compared with the first comparative example. Also, compared to the second comparative example, the speed and stability (communication performance) of communication between the child device 20 and the parent device 30 can be improved. In particular, when each layer is divided into fireproof compartments as in this embodiment, the communication performance can be significantly improved.

=== Second Embodiment ===
FIG. 4 is a diagram showing the configuration of an earthquake observation system according to the second embodiment. Parts having the same configuration as in the first embodiment (FIG. 3) are denoted by the same reference numerals, and descriptions thereof are omitted.

In the second embodiment, the child device 20 and the parent device 30 are installed in the EPS room 14 . A through hole 11a is provided in advance for electrical wiring or the like at the boundary between the EPS rooms 14 on each floor (the floors 11 on the 2nd to 10th floors). Also in the second embodiment, each child device 20 belonging to a group and the parent device 30 are connected by a wired cable 40 . In the case of the second embodiment, since the wire cable 40 can be routed using the through hole 11 a of the EPS room 14 , there is no need to provide a new through hole for wiring the wire cable 40 in the floor 11 . Therefore, the cost can be further reduced.

Either one of the child device 20 and the parent device 30 may be installed outside the EPS room 14 . For example, as shown in FIG. 1 (first comparative example), the child device 20 may be installed outside the EPS room 14 and the master device 30 may be installed inside the EPS room 14 . Alternatively, the child device 20 may be installed inside the EPS room 14 and the master device 30 may be installed outside the EPS room. However, in these cases, it is necessary to provide a hole (through hole) through which the wired cable 40 passes through the wall that separates the EPS chamber 14 from the surrounding chambers. In contrast, if the slave device 20 and the master device 30 are installed in the EPS room 14 as in the present embodiment, there is no need to provide a hole in the wall.

===Other Embodiments===
The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. The present invention can be modified and improved without departing from its spirit, and it goes without saying that the present invention includes equivalents thereof. In particular, even the embodiments described below are included in the invention.

<Regarding child device 20>
In the above-described embodiment, the child device 20 has the earthquake sensor function and the wireless communication function, but may not have the wireless communication function. In other words, the slave device 20 may be the seismic sensor 200 .

<Regarding the parent device 30>
In the above-described embodiment, the parent device 30 has the function of receiving the signal wirelessly output from the child device 20, but the function of wirelessly receiving the signal may be omitted.

Further, in the above-described embodiment, the parent device 30 is connected by wire to a plurality of (three or two) child devices 20 belonging to the group, but the present invention is not limited to this. For example, one slave device 20 may be included in the group. In the group, the parent device 30 and the child device 20 may be connected one-to-one (wired connection).

<About EPS room 14 (EPS part)>
In the second embodiment, the child device 20 and the parent device 30 are installed in the EPS room 14 (EPS part), but they are installed in the piping space (PS room: corresponding to the PS part) for water supply/drainage equipment and gas pipes. You may In this case as well, it is possible to wire the wired cable 40 without newly providing a through hole in the floor 11 . In addition, the child device 20 and the master device 30 may be installed in an MDF room that accommodates telephone lines, an IDF room that accommodates wiring branched from the MDF room, and an electric room that accommodates transformers and switchboards. .

10 Buildings (structures)
11 floor 11a through hole 12 elevator shaft 14 EPS chamber (EPS part)
20 slave unit (earthquake sensor)
30 base unit (transmitter)
40 wired cable 50 external server (receiver)
200 earthquake sensor 300 data recording device 400 wired cable 500 external server

Claims (5)

A seismic observation system for a structure having multiple layers, comprising:
seismic sensors respectively provided in the plurality of layers;
a single transmitter for transmitting a signal output from the seismic sensor, the single transmitter provided for each group composed of the seismic sensors whose number is less than the number of layers of the structure;
a single external server external to the structure for receiving the signal;
with
The external server receives the signal transmitted from the transmitter via the Internet line,
the transmitter is connected by wire to each seismic sensor of the group and is not connected by wire to the external server ;
An earthquake observation system characterized by: The earthquake observation system according to claim 1,
A through hole is provided at a boundary between the adjacent layers,
The seismic sensors and the transmitters installed in different layers in the group are connected by wired cables routed through the through-holes.
An earthquake observation system characterized by: The earthquake observation system according to claim 2,
The structure has a portion along the overlapping direction of the plurality of layers, the through hole provided at the boundary of each layer, and a portion separated from other chambers,
The seismic sensor and the transmitter are installed at the part of the structure,
An earthquake observation system characterized by: The earthquake observation system according to claim 3,
The site is an EPS site or a PS site,
An earthquake observation system characterized by: The earthquake observation system according to any one of claims 1 to 4 ,
wherein the plurality of layers are fire compartmentalized layers;
An earthquake observation system characterized by:

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