JP2011185530A - Centralized controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide inexpensive, reliable, and secure simultaneous stop control in a centralized controller with a simple composition. <P>SOLUTION: The centralized controller includes a signal switching means 4 for connecting a transmitted signal of a simultaneous stop means 5a to the same signal line transmitted from an operation/stop means 2 of each control equipment. Switching determination of the signal switching means is made to be a simple composition of connecting the signal only during operation of an operation condition display means of each control equipment, which can provide the inexpensive, reliable, and secure simultaneous stop control. In addition, the transmitted signal transmitted from the simultaneous stop means is provided with a signal delay means 6 for extending the transmitted signal for a certain period of time, which can securely achieve the simultaneous stop control even if a controller to be connected is different. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to simultaneous stop control of a centralized control device that controls a plurality of control devices such as air conditioners.

  Conventionally, this type of centralized control apparatus is equipped with a microcomputer to perform simultaneous stop control (see, for example, Patent Document 1).

  FIG. 4 is an example showing simultaneous stop control in the conventional centralized control device described in Patent Document 1. As shown in FIG. 4, the operation switch 5 and the simultaneous ON / OFF switch for controlling the operation / stop of each air conditioner are controlled by the microcomputer 6 and the internal storage device 11, and the simultaneous OFF control is surely performed. It can be done.

JP 2000-213796 A

  However, the conventional configuration requires a microcomputer that constantly monitors the operating status of the connected control device and manages the transmission of signals to the control device in the operating state, which makes it an extremely expensive centralized control device. Also, in terms of environmental resistance, countermeasures against the effects of external electromagnetic waves such as noise and surges are necessary, and in terms of design and development, there is a problem that requires labor for product quality assurance that takes development time.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a centralized control device equipped with a simultaneous stop control that can easily ensure quality at low cost.

  In order to solve the above-described conventional problems, the centralized control device of the present invention is configured to operate and stop a plurality of control devices with the same pulse signal, and to operate / stop means corresponding to each control device and a plurality of control devices. Operating status display means for displaying the operating status from the level signal transmitted from each control device, one simultaneous stop means for stopping all the controlled devices, and the output signal of the simultaneous stop means for operating / stopping each control device Signal switching means connected to the same signal line sent out from the means, and the switching judgment of the signal switching means is connected only during operation of the operation status display means of each control device.

  As a result, simultaneous stop control can be realized with simple and inexpensive hardware components, without depending on the control of the microcomputer that controls complicated constant monitoring and stop control management.

  In addition, the central control apparatus of the present invention has a configuration in which a signal delay unit is provided for extending a transmission signal for a predetermined time to a transmission signal transmitted from the simultaneous stop unit.

  As a result, even when the pulse signals necessary for stopping the operation of the connected control device are slightly different, reliable simultaneous stop control can be realized by adjusting the pulse signals with the signal delay means.

  The central control device of the present invention can realize reliable simultaneous stop control with inexpensive hardware components. Further, even when the connected control devices are different, all the control devices can be surely stopped simultaneously.

1 is a configuration diagram of a central control device according to a first embodiment of the present invention. Configuration diagram of centralized control apparatus according to Embodiment 2 of the present invention Timing chart of simultaneous stop signal in Embodiment 2 of the present invention Configuration diagram of a conventional centralized control device

  The first aspect of the invention is the operation / stop means 2 corresponding to each control device that performs operation / stop of the plurality of control devices with the same pulse signal, and the level transmitted from each control device to the operation status of the plurality of control devices. The operation status display means 3 displayed from the signal, one simultaneous stop means 5 for stopping all the control devices, and the same signal sent from the operation / stop means 2 of each control device as the signal sent from the simultaneous stop means 5 And a signal switching means 4 connected to the line, and the switching judgment of the signal switching means 4 is connected only during operation of the operation status display means 3 of each control device, so that it is cheap and highly reliable. Simultaneous stop control can be provided.

  According to the second invention, in particular, in the centralized control device according to the first invention, the signal delay means 6 is provided for extending the transmission signal for a certain time to the transmission signal sent from the simultaneous stop means 5. Thus, even if the operation / stop signals of the connected control devices are slightly different, simultaneous stop control can be reliably realized. If the regular length of time varies depending on the control device, when a person operates the simultaneous stop control means 5, a state in which some of the control devices cannot be stopped constantly occurs when pressed quickly. I can't satisfy the basic functions. It is possible to provide simultaneous stop control that avoids this problem easily and inexpensively.

(Embodiment 1)
FIG. 1 shows a configuration diagram of a centralized control apparatus according to a first embodiment of the present invention.

  In FIG. 1, switches 2 a to 2 n that are operation / stop means 2 corresponding to each control device that operates and stops a plurality of control devices 7 a to 7 n with the same pulse signal 8, and the operation status of the plurality of control devices 7. LEDs 3a to 3n that are operating status display means to display from the level signal 9 transmitted from each control device 7, a switch 5a that is one simultaneous stop means for stopping all the control devices 7a to 7n, and the simultaneous stop means Are connected to the same signal line 8 sent from the operation / stop means of each control device 7, and transistors 4 a to 4 n are connected to the same signal line 8. The operation status display means 3 is connected only during operation.

  The operation and action of the central control apparatus configured as described above will be described below.

First, this connection structure demonstrates the operation | movement of the control apparatuses 7a-7n as an air conditioner.
When the user presses the operation stop switch 2a of the central control device 1, the signal is transmitted from the connection line 8 to the air conditioner 7a. In response to this signal, the air conditioner starts operation and switches the operation monitor line 9 from Hi to Lo. As a result, the LED 3a of the operation control means in the centralized controller is turned on. Other control devices connected to the central control apparatus perform the same operation. Here, when the simultaneous stop switch 5a is operated, the signal (Hi) is connected to the emitter of the transistor 4a of the signal switching means. Is sent to the connection line 8. This operation is the same as if the individual switch was operated to the same connection line 8 as the operation / stop switch 2a to be individually controlled by the control device 7a. The same operation as described above is performed for other control devices.

  As described above, in the present embodiment, the operation monitor signal 9 is determined to switch the signal from the simultaneous stop switch, so that simultaneous stop control can be realized very easily at a low cost.

  In this embodiment, communication between the centralized control device and control equipment is effective for controlling air conditioners and lighting in compliance with JEMA-HA, and simultaneous stop control is possible without designing a new system or protocol. Thus, a simple system that is easy to use can be constructed at low cost.

(Embodiment 2)
FIG. 2 is a configuration diagram of the centralized control apparatus according to the second embodiment of this invention.

  In FIG. 2, the signal delay means 6 is added to the path from the simultaneous stop switch 5a of the first embodiment to the signal switching means 4. In this embodiment, the signal delay means 6 has a discharge time constant by the capacitor 6d and the resistor 6c, so that the OFF operation of the transistor 6b and the transistor 6a due to the time constant is delayed even when the simultaneous switch 5a is pushed down. Thereby, the OFF operation of the transistor 4a of the signal switching means is delayed, and a slightly longer OFF signal is transmitted to the control device 7a.

  The operation and action of the central control apparatus configured as described above will be described below.

  FIG. 4 shows the signal delay when the simultaneous stop switch 5a is pushed by the user in FIG. When the simultaneous stop switch is turned off, the electric charge charged in the capacitor 6d is discharged via the resistor 6c and the transistor 6b. Here, the transistor 6a is kept on until VBE of the transistor 6c falls below the ON voltage. This means that a Hi (Vcc) voltage is applied to the emitter of the transistor 4a. Here, if the control device 7a is in the operating state, the base of the transistor 4a is Lo, so that the Hi output is continued to the collector. Therefore, the transmission signal to the connection line 8 in FIG. 3 is delayed from the simultaneous switch 5a signal by the signal delay time t.

  The pulse width is not constant because basically the person operates the simultaneous stop switch. On the other hand, the pulse width that can be reliably determined as an ON / OFF signal on the side of the control device that receives this signal also has a difference such as device type, manufacturer, and individual difference. This means that some control devices may not be able to stop control due to the length of the switch operation, resulting in a serious operation failure. Therefore, by adopting the configuration of the second embodiment, it is possible to secure a pulse width that allows all connected control devices to normally receive signals regardless of a switch operation by a person. It is a useful configuration that realizes inexpensive simultaneous stop control that is extremely easy to use.

  As described above, the centralized control apparatus according to the present invention can realize inexpensive and reliable simultaneous stop control, and can be applied to all control devices equipped with a JAMA-HA terminal and apparatuses corresponding thereto.

DESCRIPTION OF SYMBOLS 1 Centralized control apparatus 2 Run / stop means 2a, 2b, 2n Run / stop switch 3 Run display means 3a, 3b, 3n Run display LED
4 Signal switching means 4a, 4b, 4n Transistor 5a Simultaneous stop switch 6 Signal delay means 7a, 7b, 7n Control device

Claims (2)

Operation / stop means corresponding to each control device that operates / stops a plurality of control devices with the same pulse signal, and operation status display means that displays the operation status of the plurality of control devices from a level signal transmitted from each control device And one simultaneous stop means for stopping all the control equipment, and a signal switching means for connecting a transmission signal of the simultaneous stop means to the same signal line sent from the operation / stop means of each control equipment, A centralized control device configured to connect the switching determination of the signal switching means only during operation of the operation status display means of each control device. The centralized control device according to claim 1, wherein a signal delay unit is provided for extending the transmission signal for a predetermined time to the transmission signal sent from the simultaneous stop unit.

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