JPH0245792A - Automatic time setting device - Google Patents

Abstract

PURPOSE:To allow easy and inexpensive time setting without individually setting the present time and without providing a special switch, etc., by asking the present time to another apparatus at the time of supplying a power source. CONSTITUTION:This device is constituted of a terminal apparatus 29, a control apparatus 26 and a commercial power line 24. A deciding means 38 judges the content of a display means 36 indicating the present time and outputs whether the content is normal or not to a control means 39. The means 39 emits the instruction for transmission of the announcement request signal of the present time of a communicating means 40 only when the content is not normal. The apparatus having the normal present time transmits the announcement data signal of the normal present time in accordance with the data transmitted to the power line 24. The means 40 receives the signal and transfers the announcement content of the present time to the means 39. Only the mans 39 of the apparatus making decision that the present time is not normal applies the announcement content of the present time to the means 36. The means 36 displays the present time in accordance with the content.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic clock adjustment device in a transmission control device between devices arranged in a decentralized manner.

Conventional technology In recent years, transmission control methods have been developed in which devices are connected via an electrical communication network and control signals are transmitted to each other for the purpose of centrally controlling multiple devices or monitoring the current status of devices. There have been various reports.

-For example, commercial 1oO is used to control the load in a general household.
There is a method of using a v power line as a transmission communication path. This superimposes a communication signal voltage of a sufficiently higher frequency on the AC voltage of the power line to enable communication between each device.
Since no special wiring for control is required, the effort and cost associated with installation are low.

Here, the equipment refers to the load to be controlled and the load state detection function that detects the state of the load.
A device that combines a terminal device that has a load control function that controls whether the device is energized or de-energized (hereinafter referred to as OFF), a communication function that sends and receives control signals to and from other devices, and a self-address setting function.

Another type of device is a communication function that sends and receives control signals to and from each device, a control signal generation function that generates ON/○FF control signals to be transmitted to each device, and a control signal generation function that determines whether each device is in the ON or OFF state. There is a control device that has a monitor display function for displaying , a partner station address setting function corresponding to each device, and a own station address setting function.

A transmission control method using a power line will be described below with reference to the drawings.

FIG. 2 is a block diagram of a conventional transmission control method using a power line. 1 is a commercial 10 ov power line, which is located in a general household. Load terminal equipment 8.9 is a combination of loads 4 and 6 and terminal equipment 2 and 3, respectively.
Each is connected to a power line 1. As mentioned above, the terminal devices 2 and 3 have a load state detection function, a load control function 2 communication function, and a self-station address setting function, and can detect and control the 0N10FF of the loads 4 and 5 combined with themselves. It communicates with other devices using the power line 1 as a transmission communication path. At this time, the own address setting means 6. sets the own address. It is complete. On the other hand, the control device 1° is a type of device, and is connected to the power line 1, and has a communication function, a control signal generation function, a monitor display function, a self-station address setting function, and a partner-station address setting function, as described above. Reference numeral 11 denotes a local address setting means. Then, by pressing the load control switch 16 to 19 corresponding to the load to be controlled, the control device 10 sends 0N1 to the terminal device set by the partner station address setting means 12 to 15 corresponding to that switch.
Send the 0FF control command and your own station address. The terminal equipment detects and controls this, and sends the status to the control equipment 10 with its own station address attached.

Upon receiving this, the control device 1o displays on the monitor 20 to 23 the location corresponding to the transmitted own station address.

Through the series of operations described above, the load condition can be controlled and monitored as desired.

Further, some of these devices have a function of turning the load 0N10FF at a specified time by setting a timer time, but these devices always require the current time.

Problems to be Solved by the Invention However, with the above configuration, it is necessary to set the current time when the device is powered on or to back it up for a long time with a battery. If you match it when the power is turned on,
When there are multiple devices, it is necessary to synchronize the current time of all devices, which is a troublesome task, especially when there are many devices.

The present invention solves the above problems and enables easy and inexpensive clock adjustment by inquiring the current time of other devices when the power is turned on, without having to set the current time individually or without providing a special switch. This provides a functional automatic clock adjustment device.

Means for Solving the Problems In order to achieve the above object, the automatic clock adjustment device of the present invention includes a terminal device that controls a load using a received signal, and a control device that transmits a signal to control the terminal device. , a commercial power line that is a bidirectional transmission communication path between the terminal equipment and the control equipment, and each of the terminal equipment or the control equipment has a display means for displaying the current time, and a display means for displaying the current time, and a display means for displaying the current time. a determining means for determining whether the current time is normal; and a determining means for transmitting a current time notification request signal on the power line when the determining means determines that the current time is not normal; It is comprised of a communication means for receiving a notification data signal of the current time from a control device, and a control means for providing the notification content obtained by the communication means to the display means only when the judgment means judges that it is not normal. ing.

Operation With this configuration, the determining means determines the content of the display means showing the current time and outputs whether or not it is normal to the control means. Based on this output, the control means instructs the communication means to send a current time notification request signal only when the system is not normal. Other devices having a normal current time signal transmitted to the power line transmit a notification data signal of a normal current time. After that, the communication means receives the signal and passes the notification content of the current time to the control means, and only the control means of the device that has determined that the current time is not normal gives the notification content of the current time to the display means. displays the current time based on that.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. FIG. 1 is a block diagram of a transmission control device according to an embodiment of the present invention. 25, 26.2 for commercial 100V power line 24
7 devices are connected.

The load terminal device 25 is a combination of a load 28 and a terminal device 29 that performs 0N10FF control of the load and transmits the load status. The terminal device 29 has its own address setting means 3o as described in the conventional example. On the other hand, the control device 2e includes a local address setting means 31 for setting the local address and a load control switch 32 that the control device 26 has.
, a monitor display 33 that displays the load status corresponding to these, a partner station address setting means 34 for the terminal device 25 that associates these, and a time to set the terminal device 26 to 0N10FF at a certain time, load 0N1
It consists of an 0FF control time 35, a display means 36 (backup section 37), a determination means 38, a control means 399, and a communication means 4o for determining whether the current time of the station is normal or not and setting normal data.

The device 27 also transmits a current time notification signal in response to a current time notification request signal from another device, and displays the display device 429, the determination device 43. Own station address setting means 419 communication means 46. It consists of a control means 44. This device 27 may be either the load terminal device 26 or the control device 26, or something different from them, so it will be described here simply as a device.

The normal operation (operation based on load control) in the embodiment of the present invention is completely the same as in the conventional example, so a description thereof will be omitted. Here, the automatic adjustment operation of the current time between the control device 26 and the device 27 will be mainly explained.

First, when the power is turned on, the determining means 38 determines whether the potential of the backup unit 37 shown in the display means 36 is higher than a certain level, or whether the contents of the current time when it is high are within the range that can be taken. .

If it is determined that this is not normal (the potential is lower than a certain level or the value is outside the range), the control means 39
instructs the communication means 40 to transmit a current time notification request signal onto the power line 24. In response to this, the communication means 4o uses the value of the own station address setting means 31 to
Send up.

Having received this, the control means 44 of the device 27 having the determination means 43 which has determined that the contents of the display means 42 are normal, instructs the communication means 46 to transmit the contents of the current time of the display means 42 as a notification signal. Instruct. In response to this, the communication means 46 uses the value of the own station address setting means 41 to communicate with the control device 26.
For example, it is transmitted as a simultaneous broadcast so that it can be received at any time. The control means sets the current time on the display means 36 only when the communication means 40 receives the current time notification signal and the determination means 38 determines that it is not normal. The types of signals used for this purpose are notification requests and notifications, not setting changes. - Setting the current time all at once is done by changing the settings, but here we are talking about the case where only those who have determined that the current time is not normal set the current time.

The control means 39 of the control device 26 which has obtained the normal current time by the above operation, based on the load oN/○FFN/time 35 which sets the time to turn each load 0N10FF,
ON time when the current time is set.

When the OFF time comes, the terminal device 2
9 can be controlled.

As another operation, when the determination means 38 and 43 determine that all the devices having the current time display means 36 and 42 on the power line 24 are not normal, any one of the devices 27
If the current time of the device is set, the control means 44 of the device will:
An instruction is given to the communication means 46 to transmit a notification signal of the current time on the power line 24. As a result, the communication means 45 transmits the value of the own station address setting means 41 onto the power line in the same manner as described above. By doing this, even if all the devices determine that the current time is not normal, the current time of all the devices will become normal by adjusting the mixed time of one device.

Note that the number of terminal devices and control devices may be any number, and as long as the current time is required,
The automatic clock adjustment device described in this invention may be present in any device, such as a terminal device, a control device, or any other type of device.

Moreover, the backup section specifically means a secondary battery, a secondary battery, etc. here.

Effect of the invention As described above, the present invention provides a display means 2 determining means.

By having a communication means and a control means, compared to conventional current time setting devices, the time and effort required for setting can be saved.Furthermore, only one device can be backed up over a long period of time without the need to back up other devices. A simple and inexpensive system is provided, and its practical effects are great.

Also, by doing this, only those devices that have determined that the current time is not normal can receive a normal data signal and operate based on it.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. 24... Commercial power line, 29... Terminal equipment, 26... Control equipment, 3e... Display means, 38... Judgment means, 39... Control means, 4o... Communication means. Name of agent: Patent attorney Shigetaka Awano and one other person

Claims (1)

[Claims] Consisting of a terminal device that controls the load using received signals, a control device that transmits signals to control the terminal device, and a commercial power line that is a bidirectional transmission communication path between the terminal device and the control device. The terminal equipment or control equipment includes a display means for displaying the current time, a determination means for determining whether the current time is normal, and a display device that displays the current time on the power line when the determination means determines that the current time is not normal. , a communication means for transmitting a current time notification request signal and receiving a current time notification data signal from another terminal device or control device having a normal current time upon receiving the signal; an automatic clock adjustment device comprising: a control means that applies the received notification content to a display means only when the determination means determines that the time is not normal.