JPH03129996A - Signal transmission method - Google Patents

Abstract

PURPOSE:To improve the safeness and reliability of the signal transmitting method by continuously driving a function during the definition of a function driving state, and at the time of defining the stop of the function, immediately stopping the drive of the function. CONSTITUTION:During the defined period of an operation mode based upon a kitchen remote controller 3 after turning on a power supply switch, the controller 3 transmits an operation mode signal 31 at the interval of time t1. When a stop mode is defined after depressing the power supply switch again, the controller 3 transmits a stop mode signal 16. At the time of receiving the operation mode signal, a boiler body and a bath remote controller define the operation mode for a time t2 longer than the time t1 and drive the operation mode. At the time of receiving the stop mode during the period of operation mode, the operation mode is immediately stopped. If the stop mode signal can not be transmitted due the abnormality of signal transmission, the boiler body and the bath remote controller are turned to the stop mode after the time t2 from the final reception of the operation mode signal.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of transmitting control signals for controlling functions of a system main body or other terminals such as other remote controllers via a contention-based signal transmission line. be.

BACKGROUND ART Taking as an example a boiler that has two remote controls, a flow remote control and a kitchen remote control as shown in FIG. 5, when the boiler is in stop mode, the power switch 8 of the kitchen remote control shown in FIG.
Conventionally, when the operation mode is operated, the operation mode of the system is defined as shown in Figure 7, and the kitchen remote control sends an operation mode signal to the boiler main body and the fluoro remote control, and the boiler main body that receives the operation mode signal starts the operation mode sequence. It was activated, and the flow remote control was activating the driving mode display.

When the power switch 8 is operated in the operating mode, the stop mode is defined, and the kitchen remote control sends a stop mode signal to the boiler main body and the fluoro remote control.When the boiler main body receives the stop mode signal, it activates a stop sequence, and the fluoro remote control The operation mode display had stopped.

In addition, when adding a call buzzer function to call someone by ringing the kitchen buzzer from the remote control, conventionally, as shown in Figure 8, when the call switch of the 70 remote control was detected to be turned on, the call was sent via the signal transmission line. The kitchen remote control transmits a kitchen remote control buzzer activation signal, and the kitchen remote control that receives the activation signal starts driving the buzzer. When the Flo remote controller detects that the call buzzer is OFF, the Flo remote controller transmits a buzzer drive stop signal to the kitchen remote controller, and the kitchen remote controller that receives the drive stop signal stops driving the buzzer.

With this configuration, the system was put into operation mode and then put into stop mode by operating the power switch on the kitchen remote control. Also, only while the call switch on the floor remote control was pressed, the buzzer on the kitchen remote control would go off, making it possible to call someone in the kitchen starting at 70.

Problems to be Solved by the Invention However, with the above configuration, if a signal transmission abnormality occurs due to noise etc. when the system is in operation mode, and the stop mode signal cannot be transmitted, it becomes impossible to put the system into stop mode. However, if a signal transmission abnormality occurs while operating the call buzzer, there is a problem in that the buzzer drive stop signal cannot be transmitted and the call buzzer stops ringing.

The present invention solves such conventional problems, and provides a highly safe and reliable signal transmission method that automatically stops the active function even if the stop signal for the function assigned to the remote control switch cannot be transmitted. It provides:

Means for Solving the Problems In order to solve the above problems, the signal transmission method of the present invention comprises: a system main body for controlling a load; a plurality of remote controllers each having an operation section, a display section, and a sounding section; In a system in which the plurality of remote controllers are connected by a continuum type signal transmission line, while the operating state of the function assigned to the remote controller is defined by the remote controller, a certain number of A signal sending method that sends an activation signal of a function assigned to the remote control operation section at time intervals, and when the operation stop is defined in the remote control operation section, sends an operation stop signal of the function assigned to the remote control operation section. This signal reception method operates the corresponding function for a time longer than the transmission interval of the activation signal when an activation signal of the function is received, and immediately stops the operation of the corresponding function when the activation stop signal is received.

Effect: With the above-described configuration, the present invention can continuously operate one function during a period in which the operating state of the function is defined.
When the stop of a function is defined, the function can be stopped immediately, and even if a stop signal cannot be transmitted due to noise or the like while the function is in operation, the function will not become in the active state.

Example Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

FIG. 6 is a block diagram of the boiler, and 1 is the boiler body, which supplies hot water at a temperature set by the fluoro remote controller 2 and the kitchen remote controller 3 to the opened faucet. Boiler body 1 and fluoro remote controller 2,
The kitchen remote control 3 is connected to a signal transmission line 4 using a continuum system.

Figure 6 is an external view of the floor remote control 2 and the kitchen remote control 3.
indicates the set temperature, and 6 and 7 are switches for setting the temperature.If you operate switch 6 warmly, the set temperature will go down one step at a time until it reaches the minimum temperature setting, and if you operate switch 7, it will go down one step at a time. It goes up one stage at a time. 8 is a system power switch that turns the boiler on and off. 9 is an operation indicator lamp that indicates that the boiler is in operation. 10 is a combustion indicator lamp that lights up while the boiler is burning. When 11 operates the call buzzer switch, the buzzer 12 of the kitchen remote control will sound while the switch is pressed, allowing the person in the kitchen to be called.

FIG. 1 is a time chart showing the normal operation when the power switch 8 of the kitchen remote controller 3 is operated, and FIG. 2 is a time chart when the power switch is operated and a signal transmission abnormality occurs. The power switch is operated and the kitchen remote control 3
While the operating mode is defined in tl
The operation mode signal 15 is transmitted at intervals of . When the power switch 8 is operated again and the stop mode is defined, the stop mode signal 16 is transmitted. When the boiler body and the fluoro remote controller receive the operation mode signal, they define the operation mode by t2, which is longer than t2, and activate the operation mode.

If the stop mode is received during the operation mode, the operation mode is immediately stopped. In addition, if the stop mode signal cannot be transmitted due to a signal transmission abnormality during the operation mode, the boiler main body and the flow remote controller enter the stop mode after t2 after receiving the operation mode signal last.

Since the magnitude relationship is 1 < 12, the stop mode will not occur automatically during normal operation.

Next, the buzzer function will be explained. Figure 3 is a time chart showing the normal operation of the buzzer function, and Figure 4 is a time chart when a signal transmission abnormality occurs during buzzer operation and signal transmission is interrupted. A buzzer drive signal 13 is transmitted to the kitchen remote controller at a frequency t3 that does not interfere with other functions by a contention method while detecting the ON of the call buzzer switch of the kitchen remote controller. The kitchen remote control is designed to drive the buzzer by t4 every time it receives the buzzer drive signal 13. Because of the magnitude relationship between t3 and t4, the buzzer on the kitchen remote control 3 will ring continuously while the call buzzer switch on the floor remote control 2 is ON. Further, when the call buzzer switch is turned off, the flow remote controller 2 transmits a buzzer drive stop signal 14 to the kitchen remote controller 3. When the kitchen remote controller 3 receives the buzzer drive stop signal 14, it immediately stops driving the buzzer. As shown in Fig. 6, even if the drive stop signal 14 cannot be transmitted due to a signal transmission error while the buzzer is being driven, the kitchen remote control will receive the last buzzer drive signal and stop driving the buzzer after t4, so the buzzer will not stop. It never goes unnoticed.

In addition, by selecting the signal transmission interval t1 of the operation mode signal to 16 seconds and the signal transmission interval t3 of the buzzer drive signal to 0.5 seconds depending on the function, the line capacity will not be exceeded during normal operation, and the system The system can be stopped without causing serious problems.

Effects of the Invention As described above, according to the signal transmission method of the present invention, functions operated through signal transmission can be prevented from being hung up due to signal transmission abnormalities, etc., without impairing performance during normal operation. It is possible to build a highly safe and reliable fail-safe system without any problems.

[Brief explanation of the drawing]

1 to 4 show time charts in the signal transmission method of the present invention, FIGS. 1 and 3 are normal operation time charts of the present invention, and FIGS. 2 and 4 are abnormal operation time charts of the present invention. The chart, FIG. 6 is a configuration diagram of a boiler, FIG. 6 is an external plan view of a remote control, FIG. 7 is a button, and FIG. 8 is a normal operation time chart of a conventional example. 1... Boiler main body (system main body), 2...
... Furo remote control, 3 ... Kitchen remote control, 4
... Signal transmission line, 11 ... Call buzzer, 12 ... Buzzer, 13 ... Buzzer drive signal, 14 ... Buzzer drive stop signal, 1
5... Operating mode signal, 16... Stop mode signal.

Claims (2)

[Claims] (1) A system in which a system main body for controlling a load, a plurality of remote controllers each having an operation section, a display section, and a sounding section, and the system main body and the plurality of remote controllers are connected by a contention type signal transmission line, While the operating state of the function assigned to the remote control operation section is defined by the remote control operation section, an activation signal of the function assigned to the remote control operation section is sent at regular intervals, and the function is activated by the remote control operation section. a signal sending method of sending a signal to stop the operation of the function assigned to the remote controller when the stop is defined; and when receiving the function activation signal, activate the corresponding function for a time longer than the transmission interval of the activation signal; A signal transmission method consisting of a signal reception method that immediately stops the operation of the corresponding function upon receiving an operation stop signal. (2) The signal transmission method according to claim (1), wherein the sending interval of the actuation signal and the actuation time when the actuation signal is received are varied for each function.