JPH0887693A - Chamber pressure monitoring device for plural chambers - Google Patents

Abstract

PURPOSE: To monitor the pressure of plural chambers at the same time point with communication while simplifying configuration. CONSTITUTION: Concerning the configuration to provide a monitoring means 11 for processing data by transmitting a chamber pressure returning command c2 to detecting means 9a and 9d for detecting chamber pressure pa to pd of plural object chambers A to D and by receiving the detected chamber pressure pa to pd returned from the respective detecting means 9a to 9d corresponding to that chamber pressure returning command c2, the monitoring means 11 simultaneously transmits a chamber pressure storage command c1 to the respective detecting means 9a to 9d before the chamber pressure returning command c2 and afterwards successively transmits the chamber pressure returning command c2 to the detecting means 9a to 9d, and the respective detecting means 9a to 9d store the detected chamber pressure pa to pd in storage means 14a to 14d corresponding to the chamber pressure storage command c1 from the monitoring means 11 and afterwards return the stored chamber pressure pa to pd in the storage means 14a to 14d to the monitoring means 11 corresponding to the chamber pressure returning command c2 transmitted from the monitoring means 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a room pressure monitoring apparatus for a plurality of chambers, and more specifically, a detection for detecting a room pressure in each of a plurality of target chambers for adjusting the room pressure to respective target values by a room pressure control means. A plurality of chambers provided with a monitoring means for transmitting a room pressure return command to the detection means and receiving the detected room pressure returned by each detection means in response to the room pressure return command and processing the data. The present invention relates to a pressure monitoring device.

[0002]

2. Description of the Related Art Conventionally, in a room pressure monitoring device for a plurality of chambers as described above, as a transmission / reception mode between a monitoring means and a plurality of detection means, as shown in FIGS.
1. First, the room pressure return command c is sent to the detection means 9a of the first target room A.
2 is transmitted, and in response thereto, the detection means 9a of the first target room A
At that time, the detection chamber pressure pa of the first target chamber A is monitored by the monitoring means 11
Then, the monitoring means 11 transmits a room pressure return command c2 to the detection means 9b of the second target room B, and the detection means 9b of the second target room B responds to this by sending the room pressure return command c2. A mode in which the detection chamber pressure pb of B is returned to the monitoring means 11,
That is, the room pressure return command c2 is transmitted from the monitoring means 11 to one detection means, and the detection means receiving the room pressure return command c2 returns the detected room pressure at that time to the monitoring means 11. The mode of sequentially performing the plurality of detecting means 9a to 9d has been adopted.

[0003]

However, it is necessary to adjust the room pressure so that the room pressures of the plurality of rooms are made different from each other to maintain the cleanliness rank of the plurality of rooms. In pressure monitoring, it is often an important issue to monitor the pressure difference between the chambers such as whether or not the pressure difference between the chambers is properly maintained.
Since each of 9d returns the detected chamber pressures pa to pd at the time of receiving the chamber pressure return command c2 to the monitoring means 11, the transmission of the chamber pressure return command c2 and the detected chamber pressures pa to p responsive thereto.
Even if the return of d is sequentially performed for the plurality of detecting means 9a to 9d at extremely short time intervals, the room pressures pa to pd of the plurality of target chambers A to D gathering in the monitoring means 11 are strictly at the respective detection time points. Therefore, the accurate pressure difference between the chambers (that is, the difference value between the chamber pressures measured at the same point) is obtained.
There was a problem that I could not grasp.

As the number of target chambers increases, the detected chamber pressure returned from the detecting means to which the room pressure transmission command c2 is first applied and the detecting chamber pressure to which the room pressure transmission command c2 is finally returned. Since the time difference between the detection chamber pressure and the detection chamber pressure increases, the above problem becomes more significant, and the change in the chamber pressure is generally extremely agile. There was a situation in which the room pressure magnitude relationship between the two rooms was reversed from the target magnitude relationship for maintaining the cleanliness rank, but such a reversal was found on the data processed by the monitoring means 11. There is also a risk of causing serious monitoring errors, such as failure to maintain the cleanliness rank being overlooked.

Incidentally, as described above, the transmission of the chamber pressure return command c2 and the return of the detected chamber pressures pa to pd in response thereto are sequentially performed for the plurality of detection means 9a to 9d from each of the detection means 9a to 9d. This is because the different detection chamber pressure signals to be returned are returned to the monitoring means 11 via the common communication system L of one system.
By constructing an independent communication system for each of a to 9d between the monitoring means 11 and the plurality of detecting means 9a to 9d, the monitoring means 11 simultaneously sends the room pressure return command c2 to each of the detecting means 9a to 9d in parallel. Each detecting means 9a ...
It is possible to return the detection chamber pressures pa to pd from 9d to the monitoring means 11 at the same time in parallel (that is, the detection chamber pressures at the same detection time point are returned in parallel).

However, in this other form, a plurality of independent communication systems are constructed, so that the device configuration becomes complicated and the scale becomes large, and the device cost greatly increases.

In view of the above circumstances, the object of the present invention is as follows.

The first object of the present invention is to complicate the device configuration.
The point is that the detection chamber pressure at the same time point in each chamber can be returned from each detection means to the monitoring means while avoiding an increase in scale.

A second object of the present invention is to enable the monitoring means to finely grasp the change in the room pressure of each room.

[0010]

[Means for Solving the Problems]

[First Characteristic Configuration] According to a first characteristic configuration of the present invention, a detection means for detecting a room pressure is provided in each of a plurality of target chambers for adjusting the room pressure to a respective target value by the room pressure control means. To the chamber pressure return command, and the monitoring means receives the detected chamber pressure returned by each detecting means in response to the room pressure return command and processes the data. Prior to the above, the chamber pressure storage command is simultaneously transmitted to each of the detection means, and thereafter, the room pressure return command is sequentially transmitted to the detection means, and each of the detection means is provided with the chamber from the monitoring means. The detected chamber pressure is stored in the storage means in response to the pressure storage command, and then the storage chamber pressure in the storage means is returned to the monitoring means in response to the room pressure return command transmitted from the monitoring means. Especially.

[Second Characteristic Configuration] A second characteristic configuration of the present invention is to identify a preferable configuration in the implementation of the first characteristic configuration, and each of the detecting means is provided with a chamber pressure from the monitoring means. Prior to storing the detected chamber pressure in the storage means in response to the storage command, the transition information of the detected chamber pressure from the time when the previous room pressure storage command is received is stored in the storage means, and from the monitoring means. In response to the sent room pressure return command,
In addition to the storage chamber pressure of the storage means, the storage transition information is returned to the monitoring means.

[0012]

[Action]

[Operation of First Characteristic Configuration] In the first characteristic configuration of the present invention, the monitoring means first transmits a room pressure storage command to each detecting means at the same time, and in response to this, each detecting means causes each detecting means to respond to the corresponding room at that time. The detection chamber pressure (that is, the detection chamber pressure at which the detection time points in the target chambers are equal to each other) is stored in each storage unit.

Thereafter, the monitoring means transmits a room pressure return command to the first detecting means, and in response to this, the first detecting means,
In response to the previous room pressure storage command, the detected room pressure stored in its own storage means is returned to the monitoring means, and subsequently, the monitoring means sends a room pressure return instruction to the second detection means, and to this, In response, the second detection means transmits the room pressure return command from the monitoring means in the form of returning the detected room pressure stored in its own storage means to the monitoring means in response to the previous room pressure storage command. When,
The return of the storage chamber pressure from the detecting means in response to this is sequentially performed for the plurality of detecting means.

Simultaneous transmission of the room pressure storage command to each detection means can be carried out by one system of common communication system by making the signal of the room pressure storage command a common signal for each detection means. Although the signal of the room pressure return command transmitted from the monitoring means and the signal of the storage chamber pressure returned from the detection means in response to it are different for each detection means,
The transmission of the chamber pressure return command and the reply of the storage chamber pressure can be performed by a single common communication system by sequentially performing a plurality of detecting means as in the conventional case.

[Operation of Second Characteristic Configuration] In the second characteristic configuration of the present invention, each detecting means receives the previous room pressure storage command from the previous room pressure storage command to the next room pressure storage command. The change information of the detected chamber pressure of the corresponding chamber from the time when it is stored in each storage means, and in addition to this, the detected chamber pressure of the corresponding room when the next room pressure storage command is received is stored in each storage means. Remember.

After that, when each detection means receives the room pressure return command corresponding to this next room pressure storage command, the detected room pressure and the room pressure transition information stored in the respective storage means (that is, the next room pressure storage). The detected chamber pressure at the time of receiving the command and the transition information of the detected chamber pressure from the previous chamber pressure storage command to the next chamber pressure storage command) are returned to the monitoring means.

[0017]

【The invention's effect】

[Effect of First Characteristic Configuration] According to the first characteristic configuration of the present invention, the detection chamber pressure (memory chamber pressure) at the same time point in each chamber is returned from each detection unit to the monitoring unit, so that the monitoring unit Accurate differential pressure between rooms can be grasped.

Further, since the communication system constructed between the monitoring means and the plurality of detecting means can be a common system for each detecting means, the apparatus structure can be prevented from becoming complicated and large in scale, and the apparatus cost can be reduced. Can be cheap.

[Effect of Second Characteristic Configuration] According to the second characteristic configuration of the present invention, the detected room pressure of each room stored in response to the room pressure storage command of each time, and the detected room pressure from the previous room pressure storage command. Room pressure change information of each room until the next room pressure storage command is also sent back to the monitoring means, so that the monitoring frequency is increased without being limited to the minimum required time for transmission and reception. Is possible.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of a room pressure control system.
Each of D is a target chamber for room pressure adjustment, 1 is a main air supply duct for guiding air sent to each target chamber A to D by a fan 2, and 3 is a fan 4.
Is a main exhaust air duct for guiding the air exhausted from each of the target chambers A to D.

In each of the air supply side branch air passages 5a to 5d which connect the main air supply air passage 1 to each of the object chambers A to D, each of the object chambers A to
Exhaust side branch air passages 7a for interposing constant air volume devices 6a to 6d for adjusting / maintaining the supply air amount to D to respective set values and connecting the main exhaust air passage 3 and the target chambers A to D 7d are respectively provided with motor dampers 8a to 8d for individually adjusting the exhaust air amounts from the respective target chambers A to D, and the target air chambers A to D are adjusted by adjusting the exhaust air amounts by the motor dampers 8a to 8d. Adjust the balance of air supply and exhaust volume of each target room A ~
Adjust the chamber pressure of D.

Room pressure controllers 9a to 9d are individually provided for the respective target rooms A to D, and these room pressure controllers 9a to 9d are provided.
d continuously detects the room pressures pa to pd of each target room A to D (specifically, the differential pressure between the outdoor reference region and the room), and
Motor dampers 8a to 8d according to the detection chamber pressures pa to pd
The chamber pressures pa to pd of the target chambers A to D by adjusting
Are automatically adjusted to respective target values mpa to mpd.

That is, these chamber pressure controllers 9a-9d
Is the target value m of the room pressures pa to pd of the target rooms A to D, respectively.
Room pressure control means for adjusting to pa to mpd is a motor damper 8
a to 8d and the constant air flow rate devices 6a to 6d, and also constitutes a detection means for individually detecting the chamber pressures pa to pd of the respective target chambers A to D.

Note that 10a to 10d are room pressure controllers 9a to.
9d is a room pressure detection end for each of the target rooms A to D.

Reference numeral 11 denotes a main room pressure control panel that communicates with the room pressure controllers 9a to 9d via one common communication system L. The main room pressure control panel 11 is a human-assigned command or setting program. Based on the above, the room pressure target values mpa to mpd are set for the room pressure controllers 9a to 9d, and the target rooms A to D sent from the room pressure controllers 9a to 9d as the room pressure monitoring means are detected. Data processing is performed on the chamber pressures mpa to mpd.

As the above-mentioned data processing, specifically, the detection chamber pressures pa to pd of the target chambers A to D are numerically displayed on the display unit 12 continuously or at predetermined time intervals, or in the recording means 13. To record.

The main room pressure control panel 11 as the monitoring means uses the common communication system L to control the room pressure controllers 9a to 9a as the detecting means.
As for obtaining the detection chamber pressures pa to pd of the respective target chambers A to D from 9d, as shown in FIG.
Simultaneously sends a room pressure storage command c1 to each room pressure controller 9a-9d (step # 1 in the figure), and in response thereto, each room pressure controller 9a-9d The detection chamber pressures pa to pd of the target chambers A to D are stored in their own storage means 14a to 14d (step # 2 in the drawing).

Further, the main room pressure control panel 11 sends a room pressure return command c2 after the room pressure memory command c1 to each of the room pressure controllers 9a to 9a.
9d are sequentially transmitted (steps # 3 to # 6 in the figure), while the room pressure controllers 9a to 9d are connected to the main room pressure control panel 1 respectively.
In response to the room pressure return command c2 transmitted from the first storage chamber pressure pa to pd (that is, the detected room pressure stored in its own storage means 14a to 14d in response to the previous room pressure storage command c1).
Is returned to the main chamber pressure control panel 11 (steps # 3 'to # 6' in the figure).

Then, the main chamber pressure control panel 11 uses the group of detected chamber pressures pa to pd obtained by returning the chamber pressures from the respective chamber pressure controllers 9a to 9d as a group to be compared with each other at the same detection time point. Data processing such as display and recording is performed as.

[Other Embodiments] Next, other embodiments will be listed.

(1) In the above embodiment, the room pressure controllers 9a to 9d set the room pressures pa to pd to the target values mpa to mpd.
Although the chamber pressure control means for adjusting the room pressure and the detection means for detecting the room pressures pa to pd are combined, the room pressure control means and the detection means may be configured as separate devices.

(2) The data processing in the monitoring means 11 is not limited to the room pressure display and the room pressure recording. For example, when the inter-room differential pressure deviates from the target adjustment range, the room pressure order is the target order. It may be a process of issuing an alarm when the user deviates from the above.

(3) In the above embodiment, each detecting means 9a
.About.9d in response to the room pressure storage command c1, the detected chamber pressures pa to pd at that time are stored in the respective storage means 14a to 14d, and the respective storage chamber pressures pa are stored according to the room pressure return command c2. ~ Pd is sent back to the monitoring means 11, but as an improved structure for this, each detecting means detecting means 9a ~
9d, in response to the room pressure storage command c1, store the detected chamber pressures pa to pd at that time in the respective storage means 14a to 14d, and prior to that, from the time when the previous room pressure storage command c1 was received. The transition information of the detected chamber pressures pa to pd is stored in the respective storage means 14a to 14d, and the storage chamber pressures pa to pd and the storage transition information are returned to the monitoring means 11 in response to the room pressure return command c2. It may be configured to.

As the room pressure transition information, the detected room pressure pa at a predetermined time point (temporary point or a plurality of time points) from the previous room pressure storage command c1 to the next room pressure storage command c1. pd, or the detected room pressure average value from the previous room pressure storage command c1 to the next room pressure storage command c1, or the previous room pressure storage command c1 to the next room pressure storage command c1 The maximum value or the minimum value of the detected chamber pressure during the period up to, or the number of times of the detected chamber pressure extreme value from the previous room pressure storage command c1 to the next room pressure storage command c1 is adopted.

(4) The plural target chambers A to D may be used for any purpose, and the present invention can be applied to various fields for performing room pressure adjustment for various purposes.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a block diagram of a room pressure control system

FIG. 2 is a flowchart illustrating a transmission / reception mode.

FIG. 3 is a block diagram for explaining a conventional example.

FIG. 4 is a flowchart illustrating a conventional transmission / reception mode.

[Explanation of symbols]

 6a-6d, 8a-8d, 9a-9d Room pressure control means pa-pd Room pressure mpa-mpd Room pressure target value A-D Target room 9a-9d Detection means c2 Room pressure return command 11 Monitoring means c1 Room pressure storage command 14a to 14d storage means

Claims (2)

[Claims] 1. Room pressure control means (6a to 6d, 8a to 8)
d, 9a to 9d) to adjust the chamber pressures (pa to pd) to respective target values (mpa to mpd).
D) is provided with detection means (9a to 9d) for detecting the room pressure (pa to pd), and the detection means (9a to 9d) is instructed to return the room pressure (c2).
And the detection chamber pressure (pa) returned by each detection means (9a to 9d) in response to the chamber pressure return command (c2).
Is a room pressure monitoring device for a plurality of chambers provided with a monitoring means (11) for receiving and processing data of the room pressure, the monitoring means (11) prior to the room pressure return command (c2). (C1) is the detection means (9a-9d)
To the room pressure return command (c
2) is sequentially transmitted to the detection means (9a-9d), and each of the detection means (9a-9d) responds to the room pressure storage command (c1) from the monitoring means (11). The detected chamber pressures (pa to pd) are stored in the storage means (14a to 14d), and then the storage means (14) is sent according to the room pressure return command (c2) transmitted from the monitoring means (11).
A chamber pressure monitoring device for a plurality of chambers configured to return the storage chamber pressures (pa to pd) a to 14d) to the monitoring means (11). 2. Each of the detection means (9a-9d),
The detected chamber pressures (pa to pd) are stored in the storage means (14a to 14d) in response to the room pressure storage command (c1) from the monitoring means (11).
14d), the previous room pressure storage command (c
1) The transition information of the detected chamber pressure (pa to pd) from the time when it is received is stored in the storage means (14a to 14d), and the room pressure return command (c2) transmitted from the monitoring means (11). In accordance with the above), the storage chamber pressures (pa to pd) of the storage means (14a to 14d) and the memory transition information are returned to the monitoring means (11). Monitoring equipment.