JPH0569479B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a time switch incorporating a microcomputer and controlling the operation of a load according to a program.

[Prior art] In conventional time switches that have a built-in microcomputer and control the operation of a load according to a program, it is also possible to control the operation of the load by operating a manual switch (hereinafter referred to as "manual operation"). It is made possible to do so. Manual operations include permanent operations and momentary operations. Permanent operation is an operation that continuously keeps the operating state of the load constant regardless of the program shown in Figure 5a, and includes a permanent on operation that turns on the load as shown in Figure 5b, and a permanent on operation that turns on the load as shown in Figure 5c. There is a permanent off operation to turn off the load. In addition, momentary operation is an operation that temporarily reverses the operating state of a load whose operation is controlled by a program, as shown in Figures 6 and 7. When the manual switch is operated while the switch is off, the load is turned on as shown in Figure b, and the load remains on until the program controls the load to be turned off. ,
If the manual switch is operated with the load on as shown in Figure 7, the load will be turned off as shown in Figure b, and the load will remain off until the program controls the load to be turned on. There is a momentary off operation to maintain the

[Problems to be Solved by the Invention] However, conventional time switches can only be operated permanently as manual operations, which may be inconvenient depending on the application.

The present invention has been made in view of the above points, and its object is to provide a time switch that can perform both permanent operation and momentary operation.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a manual switch for manually operating a load, a pressing time determining means for determining whether the manual switch has been pressed for a predetermined time or more, and a manual switch for manually controlling a load. an operation control means for momentarily operating the load when the manual switch is operated for a predetermined time or more, and switching the load alternately between a permanent operating state and a program operating state when the manual switch is operated within a predetermined time; In switching between permanent operation and program operation by the means, only the operation control mode is switched between permanent operation and program operation while the operation state of the load remains unchanged.

[Function] By configuring the present invention as described above,
By using only one manual switch, three types of operation can be selected: program operation, permanent operation, and momentary operation. Here, since the permanent operation requires switching from the program operation, and the on and off states are switched individually, four types of states must be selected as a result. For example, if the state is accidentally changed to a permanent on state when it is on due to a program operation, the original state cannot be returned until the program operation is turned off and the state is permanently off. In other words, three operations are required to return to the original state, and during the return operation, the on/off state of the load is reversed. Therefore, as mentioned above, switching between program operation and permanent operation requires operating the manual switch for a predetermined period of time, and even if the manual switch is touched by mistake, the switch will not immediately switch to permanent operation. Moreover, when the manual switch is operated for a predetermined period of time or more, only the operation control mode is reversed without reversing the on/off state of the load.

As mentioned above, switching between program operation and permanent operation requires operating the manual switch for a predetermined period of time, and this operation only switches the operation control mode. Even though this is used to switch between three types of operation control modes, it is possible to prevent unexpected operations from occurring by mistake.

[Example] Fig. 4 shows the appearance of the time switch of this example. In the time switch of this embodiment, one manual switch SW is used to control the operation of the load into either permanent operation or momentary operation. This time switch includes a display section 9 that displays the time set by the program and the current time, an input button 5 that inputs the program to control the load, an adjustment button 6 that adjusts the time, and selects each setting section on the display screen. Select button 7 to
It is equipped with a mode setting button 8 for switching the display mode. In terms of circuit configuration, this time switch detects that the manual switch SW is pressed, and also detects that the manual switch SW is pressed.
A press time determination means 1 for determining whether the SW has been pressed for 1 second or more, and a manual switch SW 1.
It is provided with operation control means 2 which switches to momentary operation when pressed for more than a second and alternately switches the load 4 between a permanent operating state and a programmed operating state when the pressing time is less than 1 second. Note that the pressing time determining means 1 and the operation controlling means 2 are configured by software using a microcomputer 3.

FIG. 2 shows the operational flow of this embodiment. When the manual switch SW is pressed, the pressing time determining means 1 determines whether the pressing time of the manual switch SW is one second or more. Here, if the manual switch SW is pressed for one second or more, momentary operation is set in the operation control means 2, and the load 4 is operated according to the output of the operation control means 2. In other words, the operating state of the load 4 at the time when the manual switch SW is operated is reversed as shown in FIG. 6 or FIG. is returned to the program operation, and the output of the load 4 is inverted. Also,
If the manual switch SW is pressed for less than 1 second, it is determined whether the operation control state of the load 4 at the time the manual switch SW is operated is in the permanent operation state, and if it is in the permanent operation state, , switches to program operation, and if it is program operation, switches to permanent operation. Figure 3 is a diagrammatic representation of the above-mentioned operation, where the frame indicates the operation control state before pressing the manual switch SW, the thick arrow indicates the case when the manual switch SW is pressed for more than 1 second, and the thin arrow indicates the operation control state before pressing the manual switch SW. This shows the case where the manual switch SW is pressed for less than 1 second. In addition, in Figure 3, for example, when the manual switch SW is pressed for more than 1 second in the permanent on state, the program operation is in the off state. This does not mean that the program operation turns off, but simply indicates that the output is inverted, and other operations with thick arrows pointing toward the end also indicate the same thing. When switching between permanent operation and program operation, only the operation control mode is switched while the operating state of the load 4 remains unchanged. As described above, according to this embodiment, the load 4 can be momentarily operated in addition to the conventional permanent operation, and there is an advantage that various uses depending on the purpose of use are possible. Furthermore, since permanent operation and momentary operation can be set with one manual switch SW, the number of switches can be reduced and the space of the time switch operating section is not taken up. Furthermore, the operation becomes easy because switching between permanent operation and momentary operation can be performed by pressing or not pressing the manual switch SW for more than 1 second. Furthermore, when switching between permanent operation and programmed operation, only the operation control mode is changed without changing the operating state of load 4, so even if the manual switch SW is pressed by mistake, the load There is an advantage that the operation in step 4 will not be reversed and cause trouble. Here, load 4 in permanent state
When returning to program operation, the operating state of load 4 due to permanent operation and program operation may not match. In this case, switch between permanent operation and program operation, and then use momentary operation to return to program operation. Put load 4 into operation state.

[Effects of the Invention] As described above, the present invention includes a pressing time determining means for determining whether a manual switch has been pressed for a predetermined period of time or more, momentarily operating a load when the manual switch is operated for a predetermined period of time or more, and and an operation control means that alternately switches the load between a permanent operation state and a program operation state when the switch is operated within a predetermined time, and the operation state of the load remains unchanged when the operation control means switches between the permanent operation and the program operation state. Since only the operation control mode is switched between permanent operation and program operation, the load can be operated in any of program operation, permanent operation, and momentary operation, and has the advantage of being able to be used in a variety of ways depending on the intended use. be. Moreover, since permanent operation and momentary operation can be set with one manual switch, the number of switches can be reduced and there is an advantage that the space of the operating section of the time switch is not occupied. Furthermore, switching between program operation and permanent operation requires the manual switch to be operated for a predetermined period of time, and only the operation control mode can be switched by that operation, so one manual switch can be used for three types. This has the advantage that it is possible to prevent troubles such as unexpected operations occurring by mistake, even though the operation control mode is used for switching the operation control mode.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a flowchart showing the same operation, and FIG. 3 is an explanatory diagram showing the same operation in a diagram.
FIG. 4 is a front view showing the external appearance, FIG. 5 is an explanatory diagram of permanent operation, and FIGS. 6 and 7 are explanatory diagrams of momentary operation. 1 is a pressing time determination means; 2 is an operation control means; 4
is the load, and SW is the manual switch.

Claims (1)

[Claims] 1. A time switch that has a built-in microcomputer and controls the operation of a load according to a program, a manual switch that manually operates the load, a pressing time determining means that determines whether the manual switch has been pressed for a predetermined time or more,
and operation control means for momentarily operating the load when the manual switch is operated for a predetermined time or more, and for switching the load alternately between a permanent operating state and a program operating state when the manual switch is operated for less than a predetermined time. A time switch characterized in that when switching between permanent operation and program operation by a control means, only the operation control mode is switched between permanent operation and program operation while the operation state of the load remains unchanged.