JPH0465578B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] This is an information collection system for supplying information regarding the environment in an office to a monitoring center, in which a sensor section for detecting environmental information is provided in a telephone, and the sensor output is transmitted via a transmission path. The information is sent from a telephone to a private branch exchange, and after being subjected to certain information processing at the private branch exchange, it is sent to a monitoring center.This makes it possible to collect detailed information without requiring large-scale construction work. It is something.

[Industrial application field]

The present invention relates to an environmental information collection system.

In offices within large buildings, environmental information is collected for various purposes, such as control information for air conditioning systems and control information for disaster prevention systems. Specifically, in an air conditioning system, temperature, humidity, etc. are control information. In addition, in a disaster prevention system, temperature, carbon monoxide, etc. are used as control information. The present invention refers to a system for collecting environmental information such as temperature, humidity, carbon monoxide, etc.

[Conventional technology]

Conventionally, in the case of air conditioning systems or disaster prevention systems in offices, etc., several dedicated sensors are used on each floor as a means of collecting environmental information, and these sensors are attached to the wall or ceiling using wiring. It's structured well. Therefore, in the past, there was no such thing as a system for collecting environmental information, and it was merely a means attached to air conditioning or disaster prevention systems.

[Problem that the invention seeks to solve]

In conventional environmental information collection, dedicated sensors are installed at predetermined positions by routing dedicated wiring. For this reason, the installation work of the dedicated sensor is relatively complicated and disadvantageous in terms of cost, and sometimes the aesthetic appearance is impaired. Furthermore, in order to eliminate such problems, there is a tendency to reduce the number of sensors installed, which has caused the problem that it is not possible to collect detailed environmental information depending on the location within the office.

In view of the above problems, it is an object of the present invention to provide an environmental information collection system that can collect detailed environmental information from a large number of locations without substantially eliminating sensor installation work and without damaging the aesthetic appearance. It is something.

[Means for solving problems]

FIG. 1 is a diagram showing the principle configuration of a system according to the present invention. In this figure, 40 is a monitoring center, specifically a control command unit for air conditioning equipment, disaster prevention equipment, etc. provided at the monitored location.
The monitored location is where the telephone 10 is placed.

Each of the telephones 10 is provided with a sensor section (S) 11. This provision may be either built into the telephone or fixed externally. The sensor unit 11 detects environmental information around the telephone. This detected environment information ev is received by a private branch exchange (PBX) 30 via each transmission path 20. The environmental information EV collected and processed in this way is sent to the monitoring center 40.

[Effect]

In the past, the sensor was connected to the monitoring center using dedicated wiring, but in the present invention, the sensor is integrated into an existing telephone, thereby eliminating the need for the conventional dedicated wiring. That is, the private branch exchange and the monitoring center are connected by using the existing transmission line for the telephone function and the dedicated wiring.

Normally, a large number of telephones are installed in offices, etc., and they are distributed relatively evenly throughout the room, making it possible to collect environmental information over a wide area with almost no construction required. .

〔Example〕

FIG. 2 is a block diagram showing one embodiment of the system according to the present invention. Note that components similar to those already described are indicated with the same reference numbers or symbols. Further, for the sake of simplicity, only the system related to one arbitrary telephone set in FIG. 1 is extracted and shown.

As the telephone 10, a digital phone or the like can be used. Usually, a digital phone has a telephone function section (TEL) 14 and a connection control section (CNT) 12.
and a time division switch unit (TSW) 13, for example, a data channel (DCH) for voice, data, etc. and a control channel (CCH) for connection control are formed on a 2W (wire) transmission line 20. be done.
On the other hand, on the private branch exchange 30 side, the subscriber circuit (LC)
31 to a network (NW) 36, and voice, data, etc. are exchanged with a specific party through the public line PL. The control channel (CCH) described above is essential for controlling this exchange, and the network control unit (NC) 34 performs connection control in accordance with the control information. For this purpose, the subscriber circuit 31 includes a subscriber circuit control unit (LCU).
33 and a time division switch (TSW) 32 are provided. There is a network interface (NW I/F) between the TSW 32 and the network 36.
35 is inserted.

According to the present invention, the telephone 10 includes a sensor section (S) 11.
is provided. The environmental information ev detected by the sensor unit 11 is sent to the control channel (CCH) described above.
The data is transferred to the private branch exchange 30, and then to the LCU 33 via the time division switch 32. Furthermore, the network control unit 34 collects the received environmental information ev corresponding to each telephone, performs certain information processing, and passes this as the environmental information EV to the monitoring center 40. Note that the sensor section 11 has a built-in A/D converter for converting detected analog environmental information into digital information.

FIG. 3 is a diagram showing an example of the data format on the control channel. In this form, the control data is sent from the telephone 10 and reaches the network control section 34 (or vice versa). In this figure, control channel data 50 begins with a header flag and ends with an end flag, followed by normal telephone connection control data bits. In the present invention, this control channel data 5
Furthermore, insert the environment information (ev) bit in 0,
This allows for easy access to information while maintaining normal operating procedures.
ev is transferred to the network control unit 34.
A register (37 in FIG. 2) for storing information ev from each telephone 10 is provided in the LCU 33 at the front stage of the control unit 34. NC accesses register 37.

Further, within the network control section 34 shown in FIG. 2, a processing section 38 is provided for applying certain information processing to the collected information ev from each telephone 10.
Certain information processing is as follows. FIG. 4 is a diagram illustrating floor divisions, and the floors in a certain office are divided into matrix shapes as shown. If the X coordinate is divided into A, B, C, etc., and the Y coordinate is divided into 1, 2, 3, etc., for example, the environmental information ev in the section (A, 2) will be detected from the telephone 10 with the telephone number 2002. . Similarly, partition (A,
Information ev in 1) is phone 1 with phone number 2001
Detected from 0. Although telephones may not be installed in every compartment, information ev can always be retrieved from locations where telephones are located. The environmental information sent from the network control unit 34 to the monitoring center 40 has no meaning unless it is environmental information corresponding to floor divisions (not corresponding to telephone numbers).
A certain amount of information processing is applied in the processing section 38 described above.

FIG. 5 is a block diagram schematically showing the processing section, which is roughly divided into an address conversion table 61, an environment information file 62, and an environment information table 63. Tables 61 and 63 input the telephone number information No. received in the network control unit (NC) 34 and the environment information ev corresponding to each telephone from the register 37. The address conversion table 61 is a correspondence table between each telephone number (No.) and its installation position.
Corresponding to each number, codes such as A1, A2 (floor division)
remember. For example, it can be formed using programmable ROM. On the other hand, the environment information file 62 stores environment information ev (ev in FIG. 3) corresponding to the addresses of the floor sections based on the tables 61 and 63. For example, it is formed from RAM. In addition, in the figure, temperature information and humidity information are illustrated as ev. The database thus formed is supplied to the monitoring center 40 as environmental information EV.

FIG. 6 is a diagram showing an example of the environmental information transfer sequence according to the present invention.
LCU, CNT, S, and TEL represent corresponding parts in Fig. 2. In addition, ,..., etc. indicate each procedure.

:The subscriber circuit control unit (LCU) transmits a polling signal P for requesting environment information from the telephone 10 to control channel data (5 in FIG. 3).
0) is placed on the ev bit part, and the telephone connection control signal is placed on the telephone connection control data bit part.

(Note: Data 50 in FIG. 3 is common to uplink and downlink.): The signal of the control channel CCH (data channel DCH is not used) reaches the connection control unit CNT.

: The connection control unit CNT extracts the telephone connection signal from the CCH signal and controls the telephone function unit TEL.

: At the same time, the CNT extracts the environmental information (ev) bit signal (Fig. 3) from the CCH signal, recognizes the polling signal P (contains the environmental information return request signal), and sends the sensor unit S. access.

: On the other hand, the telephone connection control signal (upstream direction) from TEL is sent to CNT.

:If a call is in progress, signals such as voice are sent out on DCH.

:CNT assembles the upstream CCH signal from the signals sent at , and sends it to the transmission line 20.
Send to the upper CCH (time slot).

:The upstream CCH signal reaches the subscriber circuit control unit LCU via the CCH (time slot). LCU
Now, environment information is extracted from the CCH signal and stored in the register (37 in Figure 2).

and: Access the LCU from the NC, retrieve the environment information stored in the register 37,
Output to the monitoring center 40.

In the above, polling for ev collection is
This happens periodically even when the phone is off-hook.

〔Effect of the invention〕

As described above, according to the present invention, detailed environmental information can be collected from a large number of locations at low cost by using existing equipment. In particular, in the case of a disaster prevention system, by performing a logical product between the information from this system and the information from the original disaster prevention sensor, it is possible to eliminate misjudgments that tend to occur when relying only on the disaster prevention sensor.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle configuration of the system according to the present invention.
FIG. 2 is a block diagram showing an embodiment of the system according to the present invention, FIG. 3 is a diagram showing an example of a data format on a control channel, FIG. 4 is a diagram showing an example of floor division, and FIG. 5 is a diagram showing an example of a data format on a control channel. FIG. 6 is a block diagram schematically showing the processing section, and is a diagram showing an example of the environmental information transfer sequence in the present invention. In the figure, 10... telephone, 11... sensor unit,
20... Transmission path, 30... Private branch exchange, 31... Subscriber circuit, 33... Subscriber circuit control unit, 34... Network control unit, 38... Processing unit, 40... Monitoring center, 61... Address conversion table, 62... Environment Information file, 63...Environmental information table.

Claims (1)

[Scope of Claims] 1. A plurality of telephones 10 installed in a distributed manner on the floor of an office; a sensor unit 11 provided for each telephone 10 to detect environmental information ev to be monitored around the telephone; The environmental information ev detected by the sensor unit 11
The private branch exchange 30 receives the
In an environmental information collection system, the environmental information EV corresponding to each telephone collected and processed in the private branch exchange 30 is sent to the monitoring center 40. , is performed by a processing unit 38 provided in the network control unit 34 of the private branch exchange 30, and the processing unit 38 inputs the telephone number of each telephone 10 to indicate the section on the floor where each telephone number is installed. an address conversion table 61 for converting into a parcel code; and the environment information corresponding to each telephone number.
an environment information table 63 for storing ev, and an environment information file 6 for storing the environment information ev corresponding to the partition code by referring to the address conversion table 61 and the environment information table 63.
2, and transmits environmental information EV from the environmental information file 62 to the monitoring center 40.