JPH0571985B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the operation, automation, and energy saving of a main controller in a home control device.

Conventional configuration and its problems In the main controller of a home control device that operates and monitors the status of terminal equipment continuously 24 hours a day, regardless of whether it is operated by a human or not, the power supply on the main controller body side is always energized. In order to maintain the power of the CRT display, a switch was installed separately from the main controller to turn it on and off during operation, or the power was left on at all times without a separate switch.
In this configuration, in the former case where a separate switch is provided, the CRT display only needs to be turned on during operation, so a method was used in which the power switch for the CRT display was turned on and off each time an operation was performed. . However, this method was not easy to use and caused people to forget to turn off the power switch of the CRT display. The latter, which does not have a switch and is kept energized all the time, is inconvenient in terms of the lifespan of the CRT display and energy conservation. In addition, the method of providing a detection means and immediately turning on the power of the display means when a person is detected means that the detection section will detect a person just by being in front of the main controller, so it can be used even when not in use for the purpose of use. The CRT display has turned on.

Furthermore, the method of turning on the power of the display means when any key is pressed without providing a detection means requires that a preheating current is constantly flowing through the cathode ray tube, otherwise the display will appear as the tube heats up. I had a problem with it taking a long time to arrive.

Purpose of the Invention The present invention solves such conventional problems, and automatically turns on the display means when the main controller is operated and turns it off when the main controller is not operated or after the operation is completed. Improve operability and save energy.

Structure of the Invention In order to achieve this object, the present invention includes a communication means for exchanging data between a terminal device and a main controller, an input means by key input, a CRT display serving as a display section, and a display device that stores display contents. ,
A display means consists of a display memory which is a readable and writable RAM, a display control section that outputs display contents to a CRT display, a power supply control section that controls the power supply of each of the above parts, and a display means that determines whether there is a person in front of the main controller. Detection means to detect, ROM,
The main controller consists of a memory consisting of RAM and a CPU that controls each means, and if a person enters the detection range on the front of the main controller, the power control section of the display means will immediately detect the
A preheating current is applied to the cathode ray tube of the CRT display, and the power to the display control unit and display memory is turned on. Further, in order to immediately display the display contents, the display data is transferred to the display memory in advance. If any key is pressed during detection, all remaining power to the CRT display, which serves as the display section, is turned on. This allows the display contents to be displayed on the CRT display and allows subsequent operation of the main controller. When the operation is completed or interrupted and the detection means no longer detects the presence of a person for a certain period of time, the display means power control section turns off the power to the display section, display control section, and display memory. , the key input by the input means stops.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In FIG. 1, a main controller 1 and a terminal controller 2 are connected to a common signal line 4 via a communication means 3. Communication means 3
Each has a different address, and packets are disassembled, generated, and
and perform error checking, and mutual data transmission and reception via the signal line 4. The signal line 4 has a bus structure, and data can be directly transmitted and received between any communication means 3. The terminal device 5 exchanges data such as operation details and status information with the terminal controller 2. The data sent from the main controller 1 to the terminal device 5 is
The packet signal is converted into a packet signal by the communication means 3 in the signal line 4.
sent to. The packet signal is transmitted to the destination terminal controller 2, and the communication means 3 receives and decodes the packet signal with matching addresses. This decoded signal is then transmitted to the terminal device 5. The status information from the terminal device 5 is also
It is transmitted to the main controller 1 by similar means. Next, a circuit block diagram of the main controller 1 is shown in FIG. In the figure, communication means 3,
The detection means 9, the display means 12, the input means 17, the memory 8 and the CPU 7 are connected via an internal bus 6. The CPU 7 controls each means based on a program stored in the memory 8. The detection means 9 includes a detection section 10 constituted by a sensor that detects the presence of an object, and a detection control section 11. The detection control unit 11 inputs the signal from the detection unit 10, and when it detects that the object is a human, immediately controls the detection control unit 11.
A detection signal is output to the CPU 7 and continues to be output until it is no longer detected continuously for a certain period of time. The display means 12 includes a display unit 13 made of a CRT display.
, a display control section 15 , a display memory 14 , and a power supply control section 16 . The display control unit 15 inputs one screen worth of display content data from the memory 8 under the control of the CPU 7, stores it in the display memory 14, and converts the display content in the display memory 14, which is digital data, into a video signal. It is converted and output to the display unit 13. The power supply control unit 16 includes a CPU
Based on the instructions in step 7, the preheating current of the cathode ray tube of the CRT display, which is the display section 13, and the remaining
Turns on and off the CRT display power supply, display control unit 15, and display memory 14. The input means 17 includes a key matrix 18, and an input control section 19 which includes an encoder and a decoder and performs key scanning. A front view of the operation panel of the main controller is shown in FIG. 3, and a group of function keys 20 and a group of room keys 21 are shown in FIG. In these figures, the operation panel includes a CRT display as the display section 13, a sensor for detecting objects as the detection section 10, a group of function keys 20 for selecting the terminal device 5 by function, and a room key for selecting for each room. Group 21
The terminal device 5 selected by the function key group 20 and the room key group 21 is provided with an operation key group 21 for inputting operation details such as temperature, time, operation mode, etc.

In the above configuration, the operation of each part will be explained based on an operation example of the main controller 1. If a person enters the detection range of the detection unit 10 on the front of the operation panel of the main controller 1, the detection unit 10 detects an object, and if the detection control unit 11 detects that the object is a human, the CPU 7 immediately detects the object. A signal is output. When the CPU 7 receives the detection signal, it issues an instruction to the power supply control unit 16 to cause a preheating current to flow through the cathode ray tube of the CRT display serving as the display unit 13, and to turn on the power to the display control unit 15 and the display memory 14. Furthermore, from the memory 8, the display memory 14
A predetermined display content is transferred in advance to the input controller 19, and the input control unit 19 is caused to scan the key matrix 18 and start importing keys. If any key is pressed during detection, the display section 13 will appear.
The CRT display is turned on to display predetermined display contents stored in the display memory 14 in advance. After that, the main controller can be operated. For example, when a terminal device 5 of a certain function in a certain room is selected using the function key group 20 and the room key group 21, the current state information of the terminal device 5 is input to the main controller 1 via the communication means 3. , are displayed on the display section 13 in characters or graphics. Next, if you want to perform some operation on the terminal device 5, use the operation key group 20. Assuming that the selected terminal device 5 is the air conditioner in your bedroom, 11:00 AM
to 1:00 PM, input operations for setting values, such as performing heating operation at a set temperature of 25° C., are performed according to the operating procedure shown on the display unit 13. By the above operations, the operation of the terminal device 5 or the reservation of the operation is performed, and when the time comes, data for instructing the operation is transmitted and received via the communication means 3. When the operation is completed or interrupted and the person is no longer in front of the operation panel and is out of the detection range, and the detection unit 10 does not detect the presence of a person for a certain period of time or more, the detection control unit 11 stops outputting the detection signal. cpu7
When the detection signal stops, the power supply control section 16 is instructed to turn off the currents of the display section 13, display control section 15, and display memory 14, and the scanning of the key matrix 18 by the input control section 19 is stopped. .

As described above, the power on and off of the display means 12 is automated, the operability is improved, and the CRT
I was able to prevent forgetting to turn off the display. Furthermore, since the power to the display means is turned off except when it is being operated, energy can be saved.

Effects of the Invention As described above, the home control device of the present invention is provided with a detection means for detecting the presence of a person, and immediately after the detection, the display control unit and the display memory are powered on, and the display content is stored in the display memory. At the same time as preparation, a preheating current is applied to the cathode ray tube of the CRT display, which will serve as the display section. Furthermore, the inputting of the keys of the input means is started. Here, when any key is pressed, the remaining power of the CRT display is turned on, the display contents prepared in advance are immediately displayed, and the main controller can then be operated. If no human presence is detected for a certain period of time, the CRT display, display control unit, and display memory are turned off, and input keys are stopped. With the above configuration, the display section
It is now possible to automatically turn on the CRT display only during operation and turn it off after the operation is completed without installing a specific switch, which saves time and effort during operation and eliminates the need to forget to turn off the CRT display. Furthermore, since the detection means detects a person before a key input operation is performed, the display means, which had been powered off, is placed on standby by the time of operation. , the power to the display control unit and the display memory are turned on, and the display content data is prepared in the display memory), and the display data is ready immediately upon operation, without the need to keep the display means energized all the time. Since the information can be displayed, the main controller can save energy without impairing operability.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the home control device of the present invention, Fig. 2 is a circuit block diagram of the main controller in the same embodiment, Fig. 3 is a front view of the operation panel of the main controller, and Fig. 4 is a block diagram of the main controller in the same embodiment.
The figure is an enlarged front view of a group of function keys and a group of room keys in the main controller. 1... Main controller, 2... Terminal controller, 3... Communication means, 4... Signal line, 5...
Terminal equipment, 6...internal bus, 7...cpu, 8...
Memory, 9...Detection means, 12...Display means, 1
3...Display section, 14...Display memory, 15...
Display control section, 16... Power supply control section, 17... Input means, 20... Function key group, 21... Room key group, 22... Operation key group.

Claims (1)

[Claims] 1 A configuration in which a terminal device having a communication means for transmitting data and the main controller are connected by a common bus signal line as a transmission medium, and the main controller includes the communication means, input means by key input, and a display section. It consists of a CRT display, a display memory that stores display contents, a display control section that outputs video output to the CRT display, and a power supply control section that controls the power of the display section, display memory, and display control section. A display means, a detection means for detecting whether a person is present in front of the main controller, a memory consisting of ROM and RAM, and each means is controlled based on a program stored in the memory, When the detection means detects a human being, the power supply control section of the display means sets the CRT display in advance so that the display can be immediately displayed.
In addition to passing a preheating current smaller than the rated value to preheat the display's cathode ray tube heater,
The display control unit supplies power to the display memory and starts reading the keys of the input means, and further, when any key is pressed while the detection means is detecting, all remaining power to the CRT display is turned off. By supplying power and starting display, the main controller can be operated from now on, and if the detection means does not detect a human being for a certain period of time or more, the power supply control section controls the CRT display and the display control section. , a home control device comprising a CPU that stops power supply to the display memory and stops inputting keys of the input means.