JPH0712395A - Centralized surveyor for air conditioner - Google Patents

Abstract

PURPOSE:To keep a normal operation control carried out in the case that, even if there is an instrument which is set to an address value in the address resetting course exists on a communication line at a time of address resetting, it is prevented by an address doubling detection that all functions are stopped, and also that address information of the instrument which is set to the address value in the address resetting course is released by mistaken. CONSTITUTION:The centralized surveyor is constituted of a transmitted information processor 4B which is provided with an address setting means 3, an address determining means 6 to detect a change of an address which is set by the address setting means 3 and adopt this changed address as a normal address, and an address doubling detecting means 10 to adopt a prescribed number of address doubling signal detections as an address doubling detection, and a transmitter 5B which is provided with a transmission delaying means 8 to delay transmission of transmitted information onto a communication line for a prescribed time period.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centralized monitoring apparatus for an air conditioner, and more particularly, to an air conditioner connected to one communication line on the same communication line for controlling a plurality of air conditioners from a plurality of locations. Centralized monitoring device.

[0002]

2. Description of the Related Art Recently, a method of controlling a plurality of centralized monitoring devices and a plurality of indoor units by one communication line has been proposed (for example, Japanese Patent Laid-Open No. 1-285734).

A conventional centralized monitoring device for an air conditioner will be described below with reference to the drawings. FIG. 7 is a block diagram showing the configuration of a conventional centralized monitoring device for an air conditioner.
In FIG. 7, 1 is a communication line, 2 is a centralized monitoring device body, 3
Is an address setting device, 4 is a transmission / reception information processing device that processes transmission / reception information based on the address set by the address setting device 3, and 5 is transmission information processed by the transmission / reception information processing device 4 on the communication line. In addition, it is a transmitter / receiver that transmits the reception information from the communication line to the transmission / reception information processor 4.

The operation of the centralized monitoring apparatus for an air conditioner configured as described above will be described with reference to the flowchart shown in FIG.

When the address is changed by the address setter 3, the transmission / reception information processor 4 immediately adopts the changed address, processes and sets information for canceling the address setting information before the change, and the transmitter / receiver 4 5, the information for releasing the address setting information is transmitted. Further, the transmission / reception information processing unit 4 adopts the detection of an address duplication signal (S1) from another centralized monitoring device set to the same address by transmitting from the transmission / reception device 5 once as address duplication ( S2), it is adopted as address duplication cancellation when address duplication signal detection due to transmission from the transmitter / receiver 5 disappears (S3).

[0006]

However, the above-mentioned conventional centralized monitoring apparatus for an air conditioner adopts the changed address as the official address every time the address is changed. -In the case of a tally switch or the like, there is a problem in that address duplication is detected if a device with an address passed by changing the address setting exists on the communication line.

The present invention solves the above-mentioned conventional problems. Even if a device set to an address value in the changing process exists on a communication line due to an address setting change, all functions are detected by address duplication detection. It is an object of the present invention to provide a centralized monitoring device for an air conditioner that can prevent a situation that leads to a stoppage and can continue normal operation control.

Further, in the conventional centralized monitoring apparatus for an air conditioner, the address setting device 3 is composed of a rotary switch or the like because the address setting information is released every time the address is changed. If there is a device having an address passed by changing the address setting on the communication line, the address setting information of the device is canceled.

The present invention prevents centralized monitoring of an air conditioner that prevents the address setting information of the device set to the address value in the changing process from being accidentally released due to the change of the address setting and can continue the normal operation control. The purpose is to provide a device.

Further, since the above-mentioned conventional centralized monitoring device for an air conditioner adopts the detection of the address duplication signal from the device of the same address as the address duplication even once, the address setter 3 is a rotary switch or the like. If the device having the address passed by the address setting change exists on the communication line, the device has a problem that the device detects the address duplication only when the address setting is passed.

According to the present invention, a centralized monitoring of an air conditioner which prevents a situation in which all functions are stopped due to an address duplication detection of a device through which an address setting has been passed due to a change in an address setting and which can continue normal operation control. The purpose is to provide a device.

[0012]

In order to achieve the above-mentioned object, the present invention provides the transmission / reception information processing unit with a clocking means for detecting a change in address setting and starting clocking, and a predetermined clock for timing by the clocking means. It is composed of an address determining means which is adopted as a formal address if no change in time or address is detected.

In addition to the above configuration, the transmitter / receiver is provided with a transmission waiting means for preventing transmission information from being transmitted on the transmission line for a predetermined period of time measured by the timing means.

Further, in addition to the above configuration, an address duplication signal detection means for detecting an address duplication signal from a device having the same address during transmission to the transmission / reception information processing device, and a predetermined number of times of the address duplication signal detection means. And an address duplication detection unit that adopts the address duplication signal detection as the address duplication.

[0015]

According to the present invention, after a change in the address set by the address setter is first detected,
If the address change is not detected, it is adopted as the official address.Therefore, if the address setter is composed of a rotary switch, etc., the address passed even if the address passed by the address setting change exists on the communication line. It is possible to prevent a situation in which all the functions are stopped due to duplicate detection.

Further, in order to prevent the transmission information from being transmitted on the communication line for a predetermined time after the change of the address set by the address setting device is detected, the address setting of the device set to the address value in the changing process is performed. Information can be prevented from being accidentally released.

Furthermore, since the address duplication signal detection of a predetermined number of times is adopted as the address duplication detection,
It is possible to prevent a state in which all the functions are stopped due to the address duplication detection of the device on the side where the address setting is passed due to the address setting change.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the same configurations as those of the conventional one are denoted by the same reference numerals and detailed description thereof will be omitted.

FIG. 1 is a block diagram showing the arrangement of a centralized monitoring apparatus for an air conditioner according to the first embodiment of the present invention. In FIG. 1, 4A is a transmission / reception information processing device, 5A is a transmission / reception device, 6 is an address determining means for officially determining whether or not an address is adopted, and 7 is a time measuring means for measuring a time from an address change.

The operation of the centralized monitoring apparatus for the air conditioner configured as described above will be described based on the flowchart showing the operation of FIG.

The transmission / reception information processor 4A detects a change in the address changed by the address setter 3 (S4),
First, a flag under address determination is set (S5). Next, the count of the timer in the clock means 7 for counting how many seconds the address setting has not been changed is reset (S6), the timer counter is started (S7), and the process for determining the address is performed. Enter (S8). If the address setting is not continuously changed, the address determining means 6 determines whether the count of the timer for counting the number of seconds for which the address setting has not been changed has passed T seconds (S9), and T seconds have passed. If so, the changed address is adopted (S10), the timer count is stopped (S11), the timer counter is reset (S12), and the address determination flag is also reset (S13).

If the address setting is further changed before the count of the timer for counting how many seconds the address setting is not changed reaches T seconds,
Since the counter of the timer is reset (S6), the count of the timer is restarted from 0, and the process again waits for T seconds.

As described above, in the centralized monitoring apparatus for the air conditioner of this embodiment, the address determining means 6 and the clocking means 7 are added to the transmission / reception information processor 4A, so that the address is finally determined. Since the address is not adopted until the address setting is performed, even if there is another device having the same address as the address passed during the address setting change, it is possible to prevent a state in which all the functions are stopped due to the address duplication detection.

FIG. 3 is a block diagram showing the structure of a centralized monitoring apparatus for an air conditioner according to the second embodiment of the present invention.
In the configuration of the first embodiment, transmission waiting means 8 that waits for transmission until an address is adopted is added.
5B is a transceiver similar to 5A of FIG.

The operation of the centralized monitoring apparatus for the air conditioner configured as described above will be explained based on the flowchart showing the operation of FIG.

In this embodiment, the address determination flag is set until the timer counts T seconds, so the transmission waiting means 8 determines this flag (S14),
If it is set, transmission is prohibited (S15), and if it is not set, transmission is permitted (S16).

As described above, in the centralized monitoring apparatus for the air conditioner of this embodiment, by adding the transmission waiting means 8 to the transceiver 5B, until the address is finally determined,
Since the transmission of information for releasing the address setting information is waited for, it is possible to prevent the address setting information from being accidentally released even if the device set to the address value in the process of changing the address setting exists on the communication line 1. You can

FIG. 5 is a block diagram showing the structure of a centralized monitoring apparatus for an air conditioner according to the third embodiment of the present invention.
In the configuration of the second embodiment, an address duplication signal detection unit 9 that detects an address duplication signal from a device having the same address, and an address duplication detection unit 10 that determines address duplication detection based on the number of times the address duplication signal is detected. 4B is a transmission / reception information processing device similar to that shown in FIGS.

The operation of the centralized monitoring apparatus for the air conditioner configured as described above will be described with reference to the flowchart showing the operation of FIG.

As a result of transmitting the transmission information, the address duplication signal detection means 9 determines whether or not the address duplication signal is detected (S17). If the address duplication detection means 10 does not detect the address duplication signal, the number of address duplication signals is determined. The counter is reset (S18) to cancel the address duplication (S19), and if the address duplication signal is detected, it is determined whether the number of times of the address duplication signal detection frequency counter is N or more (S20). . If the number of times of the address duplication signal detection counter is N or more, it is adopted as a formal address duplication (S21). If the number of times of the address duplication signal detection number counter is N or less, the address duplication signal detection number counter is used. The number of times is increased by 1 (S22). If this N is set to be equal to or greater than the number of times information is transmitted in the time required for address setting, address duplication is not detected during address setting.

As described above, in the centralized monitoring apparatus for the air conditioner of this embodiment, the address duplication signal detection means 9 and the address duplication detection means 10 are added to the transmission / reception information processor 4B, so that the address setting can be performed. Since the address duplication is not detected during the change, even if there is another device with the same address as the address passed during the address setting change, all the functions stop due to the address duplication detection of the device on which the address setting is passed. It is possible to prevent such a situation.

[0032]

As described above, the centralized monitoring apparatus for an air conditioner of the present invention is an address setting device and a transmission / reception information processing device for processing transmission / reception information based on an address set by the address setting device. And a transmitter / receiver for transmitting the transmission information processed by the transmission / reception information processor to a communication line and transmitting the reception information from the communication line to the transmission / reception information processor; and the address setting device in the transmission / reception information processor. And a time measuring means for starting time counting from the time when the change in the address set by is detected, and a predetermined time period counted by the time measuring means, and an address determining means adopted as a formal address if no change in the address is detected. By providing the above, it is possible to prevent a state in which all the functions are stopped due to the address duplication detection due to the address setting change.

Furthermore, the present invention provides the transceiver as described above,
By providing the transmission waiting means for preventing the transmission information from being transmitted on the communication line for the predetermined time period measured by the timing means, it is possible to prevent the address setting information from being canceled by mistake when the address setting is changed.

Further, the present invention further comprises an address duplication signal detecting means for detecting, in the transmission / reception information processing device, an address duplication signal from a device having the same address as the address set by the address setting device when transmitting. By providing the address duplication detection unit that adopts the address duplication signal detection unit of the address duplication signal detection a predetermined number of times as the address duplication, it is possible to prevent a state that all the functions are stopped due to the address duplication detection due to the address setting change. .

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a centralized monitoring apparatus for an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of FIG.

FIG. 3 is a block diagram showing a configuration of a centralized monitoring device for an air conditioner according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of FIG.

FIG. 5 is a block diagram showing a configuration of a centralized monitoring device for an air conditioner according to a third embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of FIG.

FIG. 7 is a block diagram showing a configuration of a conventional centralized monitoring device for an air conditioner.

FIG. 8 is a flowchart showing the operation of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Communication line, 2 ... Centralized monitoring device main body, 3 ... Address setting device, 4A, 4B ... Transmission / reception information processing device, 5A, 5
B ... Transceiver, 6 ... Address determining means, 7 ... Timing means, 8 ... Transmission waiting means, 9 ... Address duplication signal detecting means, 10 ... Address duplication detecting means.

Claims (3)

[Claims] 1. An address setting device, a transmission / reception information processing device for processing transmission / reception information based on an address set by the address setting device, and transmission information processed by the transmission / reception information processing device on a communication line. A transmitter / receiver that transmits information received from the communication line to the transmission / reception information processing device, and starts time counting after detecting a change in the address set by the address setting device in the transmission information processing device. A centralized monitoring apparatus for an air conditioner, comprising: a time measuring unit for controlling the time, and an address determining unit for adopting the address as a formal address if a change in the address is not detected for a predetermined time period measured by the time measuring unit. 2. The centralized air conditioner according to claim 1, wherein the transmitter / receiver has transmission waiting means for preventing transmission information from being transmitted on a communication line for a predetermined period of time measured by the timing means. Monitoring equipment. 3. An address duplication signal detection unit for detecting an address duplication signal from a device having the same address as the address set by the address setting unit when transmitting to the transmission / reception information processing unit, and the address duplication signal detection unit. 3. The centralized monitoring device for an air conditioner according to claim 2, further comprising address duplication detecting means that adopts the address duplication signal detected a predetermined number of times as the address duplication.