JPH11232570A - Remote monitoring system for facility equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote monitoring system for facility equipment which can be connected to a target monitoring terminal device through single communicating operation even when plural monitoring terminal devices share a line. SOLUTION: Monitoring terminal devices 4 to 6 having operation data measuring means 41, 51, and 61 to measure the operation of facility equipment installed in a building are provided with line connecting means 43, 53, and 63 which detect incoming calls simultaneously with other monitoring terminal devices and make line connections when called by an information center 9, and a terminal discriminating means 44 which gives different terminal numbers to the monitoring terminal devices 4 to 6, and released its communication connection with the line connecting means and switches the connection to some other line connecting means when the terminal discrimination number does not match a terminal discrimination number sent from the information center 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring system for equipment which collects operation information of equipment installed in a building from a remote place.

[0002]

2. Description of the Related Art In general, a remote monitoring system for monitoring equipment installed in a building from a remote location includes a monitoring terminal device for monitoring the operating state of equipment such as an elevator and an air conditioner and performing various measurements. And an information center connected to the monitoring terminal device via a telephone line. The information center periodically collects data on the operation status of the equipment and generates an abnormality based on the collected data. It performs predictions and analyzes the causes of failures. In such a remote monitoring system for equipment, a plurality of monitoring terminal devices are installed in one building and connected to an information center by sharing one telephone line. Could not be selected and called for communication.

In the remote monitoring system for equipment described in Japanese Patent Application Laid-Open No. 6-71291, a plurality of monitoring terminal devices sharing a telephone line are provided with their own incoming time limits to set the incoming order. In response to a call from the information center, communication is performed with the monitoring terminal device with the highest incoming call rank, and means for setting a stop of the incoming call from the information center are provided, and the target monitoring terminal device is connected by operation from the information center. Until it is possible, one monitoring terminal device is selected from among a plurality of monitoring terminal devices by setting the incoming call stop of a terminal device having a higher receiving order. More specifically, when three monitoring terminal devices share one telephone line and the information center tries to access the monitoring terminal device having the last incoming call order from the information center, a call is made from the information center. On the other hand, the first incoming call is the monitoring terminal device having the first incoming call order, but at this time, the information center stops the incoming call to this monitoring terminal device because the incoming monitoring terminal device is not the target monitoring terminal device. Set and hang up once. Next, when a call is made from the information center, the monitoring terminal device having the second incoming call order receives the call this time. However, since the information center is not the target monitoring terminal device, the incoming call is set to stop and the call is cut off. Thereafter, when a call is made from the information center, it is possible to communicate with the target monitoring terminal device having the third incoming call rank.

[0004]

However, the conventional remote monitoring system for facility equipment collects all data of the monitoring terminal devices when the number of monitoring terminal devices sharing the telephone line is two. To collect data, connect to the first monitoring terminal device with the first incoming call on the first phone and set stop incoming when the second phone connects again to the first monitoring terminal device with the first incoming call. Then, the call is terminated, and the third call connects to the monitoring terminal device having the second incoming call order to collect data, so that a total of three calls have to be made. Six times when the number of monitoring terminal devices is three, ten times when the number of monitoring terminal devices is four, and one when the number of monitoring terminal devices is five.
When the number of monitoring terminal devices increases, such as five times, not only does the number of outgoing operations from the information center increase dramatically, but the outgoing operation of the information center is difficult to automate due to complicated processing. . Furthermore, data collection from the information center is performed at a predetermined cycle, such as weekly or monthly, and if this is adhered to, a monitoring terminal device that can monitor as the time required for data collection increases. Will be limited.

An object of the present invention is to provide a remote monitoring system for equipment which can be connected to a target monitoring terminal device by one communication operation even when a plurality of monitoring terminal devices share a line. To provide.

[0006]

According to the present invention, in order to achieve the above object, two or more monitoring terminal devices having measuring means for measuring the operation of facility equipment installed in a building are provided via a communication line. In a remote monitoring system for equipment provided with a connected information center, a line connection means for simultaneously detecting an incoming call and making a line connection in response to a call from the information center, and a terminal identification number transmitted from the information center When a different terminal number is checked for each monitoring terminal device that is determined in advance and is not compatible, the own communication connection to the line connection means is released and the connection is switched to another monitoring terminal device side and Terminal identification means for enabling communication only with the monitoring terminal device conforming to the terminal identification signal from the information center.

In the remote monitoring system for equipment according to the present invention, as described above, when called from the information center in each of the monitoring terminal devices, the line connection means simultaneously detects the incoming call and connects the lines, thereby identifying the terminal device. If the means does not match the terminal device identification number transmitted from the information center with the terminal device number of each monitoring terminal device, and the connection is not compatible, the monitoring terminal adapted to the terminal identification signal from the information center by switching its line connection means Since the terminal identification means that enables communication only with the device is provided, even if a plurality of monitoring terminal devices sharing a communication line are connected, even if data collection of any of the monitoring terminal devices is performed, one operation from the information center is performed. A call can be made to connect to a target monitoring terminal device.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a remote monitoring system for equipment according to an embodiment of the present invention.

[0009] In the building 7, three elevators 1 to 3 as equipment are provided side by side.
3 are connected to one end of the main rope wound around the sheaves 14, 24, 34, and the counterweights 12, 23, 33 are connected to the other end, and the cars 12, 22, 32 are connected to the other end, respectively. The operation is controlled by 11, 21, and 31. Elevator control device 11,
The monitoring terminals 21 and 31 are monitored by a plurality of monitoring terminal devices 4 to 6 installed in the building 7, and each of the monitoring terminal devices 4 to 6 is connected to the information center 9 via a communication line such as a telephone line. The information center 9 communicates with the remote monitoring terminal devices 4 to 6 in the building 7 and the monitoring terminal devices of equipments of other buildings (not shown) via the communication line 8.
To make various settings such as terminal device numbers, etc., and to collect various measurement data accumulated in operation data measurement means 41, 51, and 61 of monitoring terminal devices 4 to 6 described later. It has a function of periodically calling the monitoring terminal devices 4 to 6 according to a predetermined schedule, and a function of analyzing collected measurement data and detecting a sign of a failure of the elevators 1 to 3 and other equipment.

Since the configuration of each of the monitoring terminals 4 to 6 is the same, the monitoring terminal 4 will be described as a representative here. The monitoring terminal device 4 reads the operation data of the elevator 1 to perform various measurements, and collects the measurement data via the communication line 8 from the operation center 9 and the operation data measurement means 41 for storing the measurement data therein. When there is a request, a modem communication means 42 for transmitting the measurement data stored in the operation data measurement means 41 to the information center 9 via the communication line 8, and a call is made from the information center 9 via the communication line 8. When the relay is turned on, the communication line 8 is connected, and the relay is turned off when a line disconnection command is received from the terminal identification means 44 described later or when a data collection processing end signal is received from the information center. Line connection means 43 for disconnecting the communication line 8
When the communication line 8 is connected by the line connection means 43, the terminal identification number transmitted from the information center 9 is compared with its own terminal number preset in the terminal number storage means 45, and both are checked. A terminal identification means 44 for giving a line disconnection signal for terminating the communication to the line connection means 43 when it does not match, and a terminal number different for each of the predetermined monitoring terminal devices 4 to 6 are stored. And a terminal number storage means 45.

FIG. 3 shows each of the above-mentioned line connection means 43 and 5.
It is a circuit diagram which shows the principal part details of 3,63. Line connection means 43, 53 and 63 include lines L1 and L2 connected to the communication line 8 and shared terminal device terminals T1 and T2 connected to the line connection means of another monitoring terminal device sharing the line.
And transmission / reception lines R1 and R2 are respectively connected via line connection relays. The communication line 8 is the monitoring terminal device 4
Are connected to the lines L1 and L2 of the line connection means 43, and from the terminals T1 and T2 for the common terminal device of the line connection means 43 to the lines L1 and L2 of the line connection means 53 of the monitoring terminal device 5 via the crossover line 10, From the terminals L1 and L2 for the common terminal device of the line connection means 53 to the line connection means 6 of the monitoring terminal device 6
3 lines L1 and L2. The line connection relays built in each of the line connection means 43, 53, 63 are line connection relays which are excited when communicating with the information center 9 and are connected to their own transmission / reception lines R1, R2. In a normal state in which the connection is not performed, the line connection relay is demagnetized to switch the line connection with another shared terminal device connected to the shared terminal device terminals T1 and T2. When a call is made from the information center 9 to the monitoring terminal via the communication line 8, the line connection means 43, 53, 63 detects a call signal regardless of whether the relay is energized or demagnetized. A call signal detection function (not shown) for connecting a line is built in, and the line connection means 43, 53, and 63 simultaneously excite a line connection relay and start a communication operation.

Next, when the information center 9 collects data, the line connection means 43, 53,
The operation of the terminal 63 and the terminal identification means 44, 54, 64 will be described with reference to the flowchart shown in FIG. When the data collection date and time of the monitoring terminal device 4 is reached according to a predetermined schedule and the information center 9 performs data collection of the monitoring terminal device 4, the information center 9 transmits the data to the monitoring terminal device 4 via the communication line 8 in step S 1. Make a call to At this time, all of the monitoring terminals 4 to 6 in the building 7 detect the calling signal at the same time, and the line connection means 43, 53, 63 of the monitoring terminals 4 to 6 simultaneously switch the line connection relay in step S2. Excite. Next, at step S3, the communication line 8
Is connected, the information center 9 continues to transmit a predetermined number of terminal identification numbers representing the terminal numbers of the monitoring terminal devices 4. At this time, the three monitoring terminal devices 4 to 6 excite the line connection relay, but since the communication line 8 is actually connected only to the monitoring terminal device 4, only the monitoring terminal device 4 is connected to the terminal. The identification number can be received, and the remaining monitoring terminal devices 5 and 6 wait for a certain time.

In step S4, the monitoring terminal device 4 receives the terminal identification number from the information center 9, so that the
In step 5, the terminal identification means 44 checks the received terminal identification number against the terminal number stored in the terminal number storage means 45 to determine whether or not the terminal identification number matches the terminal number. Is determined. Since the information center 9 collects data at the monitoring terminal device 4, the terminal identification number transmitted from the information center 9 matches the terminal number of the monitoring terminal device 4. Therefore, in step S6, the terminal identification means 44 of the monitoring terminal device 4 continues the connection of the communication line as it is, and sends the various measurement data accumulated in the operation data measurement means 41 by the modem communication means 42 to the information center 9. Send. On the other hand, the monitoring terminal devices 5 and 6 waiting with the line connection relay being excited cannot detect the identification number from the information center 9 even after the lapse of a predetermined time in step S3, and detect a timeout, and in step S7, A line disconnection command is issued to each of the line connection means 53 and 63 to demagnetize the line connection relay.

On the other hand, when the information center 9 performs data collection of the monitoring terminal device 5, the information center 9 is collected in step S1.
Makes a call to the monitoring terminal device 4 via the communication line 8. At this time, the monitoring terminal device 4 in the building 7
6 to 6 simultaneously detect the call signal, and in step S2, the line connection means 43, 53,
63 simultaneously excites the line connection relays. Next, in step S3, when the communication line 8 is connected, the information center 9 continues to transmit a predetermined number of terminal identification numbers indicating the terminal number of the monitoring terminal device 5. At this time, three monitoring terminal devices 4
6 excites the line connection relay, but since only the monitoring terminal 4 is actually connected to the communication line, only the monitoring terminal 4 receives the terminal identification number and the remaining monitoring terminals The devices 5 and 6 are kept waiting for a certain time.

In step S4, when the monitoring terminal device 4 receives the terminal identification number from the information center 9, in step S5
Then, the terminal identification means 44 checks the received terminal identification number with the terminal number stored in the terminal number storage means 45 in advance, and determines whether or not the terminal identification number matches, that is, the monitoring terminal called by the information center 9. A determination is made as to whether the device is itself. However, since the monitoring terminal device 5 performs data collection this time, the terminal identification number transmitted from the information center 9 does not match the terminal identification number of the monitoring terminal device 4. Therefore, in step S7, the line connection means 43
, The line connection relay is demagnetized. At this point, the monitoring terminal devices 5 and 6 keep the line connection relays excited, and
Waiting for the timeout of the monitoring terminal device 4
The communication line 8 is connected to the monitoring terminal device 5 when the line connection relay is demagnetized.

Therefore, the monitoring terminal device 5 receives the terminal identification number continuously transmitted from the information center 9, and if the terminal identification number is received from the information center 9 in step S4, the process proceeds to step S5. The terminal identification means 54 receives the terminal identification number and the terminal number storage means 55
Is compared with the terminal number stored in advance, and it is determined whether or not the terminal number matches, that is, whether or not the monitoring terminal device called by the information center 9 is itself. this time,
Since the information center 9 collects data of the monitoring terminal device 5, the terminal identification number transmitted from the information center 9 matches the terminal number of the monitoring terminal device 5, so the process proceeds to step S6. Here, the terminal identification means 54 of the monitoring terminal device 5 continues the connection of the communication line as it is,
Then, various measurement data accumulated in the operation data measurement means 51 are transmitted to the information center 9. On the other hand, the monitoring terminal device 6 which stands by while energizing the line connection relay cannot detect the identification number from the information center 9 even after a certain period of time has elapsed in step S3, and detects a timeout, and in step S7, detects the timeout. A line disconnection command is given to the line connection means 63 to demagnetize the line connection relay.

When the information center 9 collects data from the monitoring terminal device 6, the process proceeds to step S5 in the same procedure as described above, and the terminal identification means 64 stores the received terminal identification number and terminal number storage means 65 in the terminal identification number 64. The information center 9 is compared with a terminal number stored in advance to determine whether or not the terminal number matches the terminal number. Then, since the terminal identification number transmitted from the information center 9 matches the terminal number of the monitoring terminal device 6, the process proceeds to step S6, and the terminal identification means 64 of the monitoring terminal device 6 continues the connection of the communication line as it is. Then, various measurement data accumulated in the operation data measurement means 61 is transmitted to the information center 9 by the modem communication means 62.

As described above, even if the three monitoring terminal devices 4 to 6 installed in the building 7 are connected to one communication line 8, the information center is provided in each of the monitoring terminal devices 4 to 6. Line connection means 43, 53, 63 for simultaneously detecting the center of gravity when called from the terminal 9 and connecting the lines, the terminal numbers stored in the terminal number storage means 45, 55, 65 and the information center 9 Terminal identification means 44, 54, 64 for collating with the terminal identification number transmitted from the terminal. The line connection means 43, 53, 63
The fixed time holding means for holding the terminal identification numbers 3, 63 in a state of waiting for the reception of the terminal identification number from the information center 9 for a certain time, and the line connection means when the matching by the terminal identification means 44, 54, 64 does not match. Since the line disconnecting means for giving a disconnection command is provided, the target monitoring terminal device can be connected to the information center 9 by a single call operation even when data is collected from any of the monitoring terminal devices. Can be simplified, so that the process can be automated and more monitoring terminal devices can be monitored.

In the above embodiment, the monitoring terminal device for monitoring the elevator has been described. However, the present invention can be similarly applied to other equipment.

[0020]

As described above, the system for remotely monitoring facility equipment according to the present invention comprises line monitoring means for detecting line incoming simultaneously with a call from an information center and performing line connection in each monitoring terminal device. And, when the terminal identification number transmitted from the information center is compared with a different terminal number provided for each monitoring terminal device, if the terminal connection number does not match, the communication connection to the line connection means is released and another monitoring terminal is released. A terminal identification means for switching the connection to the device side and enabling communication only with the monitoring terminal device conforming to the terminal identification signal from the information center is provided. It is possible to connect to the target monitoring terminal device by one calling operation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a remote monitoring system for equipment according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a connection procedure by the remote monitoring system for the equipment shown in FIG. 1;

FIG. 3 is a circuit diagram showing a main part of a line connection unit of the remote monitoring system for equipment shown in FIG. 1;

[Explanation of symbols]

 4, 5, 6 monitoring terminal device 8 communication line 9 information center 41, 51, 61 operation data measurement means 42, 52, 62 modem communication means 43, 53, 63 line connection means 44, 54, 64 terminal identification means 45, 55 , 65 Terminal number storage means

Claims (3)

[Claims] 1. A facility equipment remote monitoring system comprising two or more monitoring terminal devices having measuring means for measuring the operation of facility equipment installed in a building, and an information center connected via a communication line. Line connection means for simultaneously detecting an incoming call in response to a call from the information center and connecting the line, and a terminal identification number transmitted from the information center and a terminal number different for each predetermined monitoring terminal device When the terminal does not match, the communication terminal disconnects its own communication connection to the line connection means, switches the connection to another monitoring terminal, and matches the terminal identification signal from the information center. A remote monitoring system for equipment, comprising: a terminal identification unit that enables only communication. 2. A remote monitoring system for equipment comprising two or more monitoring terminal devices having measuring means for measuring the operation of equipment installed in a building, and an information center connected via a communication line. Line connection means for simultaneously detecting an incoming call in response to a call from the information center and making a line connection, terminal number storage means for storing a predetermined terminal number for each predetermined monitoring terminal device, The terminal identification number transmitted from the center is compared with the terminal number in the terminal number storage means, and if the terminal number does not match, the communication connection to the line connection means is released and connected to another monitoring terminal device side. Terminal monitoring means for switching only the monitoring terminal device adapted to the terminal identification signal from the information center to enable communication. Stem. 3. The fixed time holding means according to claim 1, wherein said line connection means holds said line connection means of each of said monitoring terminal devices in a state of waiting for reception of a terminal identification number from an information center for a certain time. And a line disconnecting means for issuing a line disconnection command to the line connecting means when the verification by the terminal identifying means does not match.