JPH0371831B2 - - Google Patents

Description

[Detailed description of the invention]

<Technical Field> The present invention relates to a remote control device that controls predetermined equipment such as an air conditioner installed in a home by using a telephone line and a password from outside the home. <Prior art> This type of conventional remote control device is generally called a telecontrol system (telecontrol device), and it can be used to control calls from home (at home) by operating buttons on a pushphone phone from outside using a regular subscriber telephone line. ), it is possible to control the operation or stopping of equipment such as air conditioners installed in the air conditioner, and to check the current operating status. To explain the basic procedure for controlling equipment using a telecontrol device as described above, using an actual example, first make a pushphone call to your home from outside the home, and after the ring tone rings several times, the telecontrol device When I received a voice response from ``PingPong is currently out'' twice,
Enter the 4-digit password that you set before going out to prevent others from controlling your device by operating the number push button, and then pressing the # button. The # symbol is a termination code indicating that the numbers up to the number before it are the password. If the PIN number matches the one set in the telecontrol device, it will respond with a voice "ping-dong", and then if you want to operate a device installed in your home, such as device No. 1, it will operate the device No. 1. The user inputs the code, for example, the operation code 11# in the operation code table below, and the telecontrol device controls the predetermined equipment with the operation code based on the operation code, and responds with the result by voice. When you have finished controlling the necessary equipment, input 00#, disconnect the telecontrol device from the telephone line, and hang up the phone.

[Table] In this way, the telecontrol device is extremely convenient because it allows you to control air conditioners installed in your home from outside the home. However, if you set a large number of digits when entering the PIN number during this series of operations, you will have to enter a large number of digits each time you use the phone to control the phone, which can be inconvenient. It is not best to decide the number of digits of the PIN unambiguously, ignoring the user's will, as it is possible to forget the code, and if the number of digits is set too small, there is a risk of security problems. There was a problem. <Purpose> In view of the above-mentioned problems, the present invention has been developed so that if a special code is set on a rotary dip switch or the like for setting a PIN number, that digit becomes invalid, and the user can change the number from 1 to 4 at his/her own will. The object is to provide a remote control device that can set any number of digits. <Embodiment> An embodiment of the remote control device of the present invention will be described below with reference to the drawings. The remote control device of the present invention is configured as shown in FIG. 1, in which 1 is a memory;
A microcomputer that performs control, etc., 2 an oscillation unit that generates a basic clock for the microcomputer, 3 a power supply unit for the microcomputer, etc., 4
5 is a multi-frequency signal receiver that decodes the multi-frequency signal sent from the pushbutton type telephone and outputs it in binary; 5 is a speech synthesis generator for responding with voice; and 6 is the signal output from the speech synthesis generator 5. 8 is an amplifier section that amplifies the audio; 7 is an interface section that exchanges multi-frequency signals and audio signals with the telephone line;
9 is a signal converter unit that converts a calling signal from a telephone exchange into a DC low voltage monotonous signal; 9 is a driver unit that sends signals to drive an LED (indicator) 10 and control various devices such as an air conditioner; 11 12 is a key matrix section; 13 is a terminal for connecting to various devices such as an air conditioner; and 14 is a terminal for connecting to a telephone line. In the operation of the remote control device configured as described above, the microcomputer 1 first controls the signal converter 8.
After detecting the incoming call, the multi-frequency signal receiver 4 receives the signal from the telephone, enters the PIN and operation code, and presses the rotary dial to confirm the PIN. After reading the deep switch 11 and recognizing the operation code, the driver unit 9 is driven and the terminal 13 is
Controls the equipment connected to the LED10
After that, the operating state of the device is detected, and the voice synthesis generating section 5 generates an appropriate message, which is amplified by the amplifier section 6 and sent to the telephone line via the interface section 7. Next, a processing routine for checking whether the passwords match or do not match will be explained with reference to the flowcharts of FIGS. 2 and 3. First, when you press the push button on the phone side, a corresponding signal is output from the multi-frequency signal receiver 4, so if it is a number (0 to 9), it is taken in as one of the passwords and stored in the microcomputer 1. Store in RAM area A. By the way, the # button has the role of a separator, so take in the numbers until the # button comes, and move the 2nd to the 1st, the 3rd to the 2nd, the 4th to the 3rd, and the 4th in RAM area A. The latest numbers are stored in RAM area A, and so on. When the # button is pressed, the capture of the password from the telephone is completed, the password is read from the password setting rotary date switch 11 inside the device, and the data is stored in the RAM area 1B3. Next, check whether a special code has been set, and if a special code has been set, write it to RAM area A.
Load the same special code as in RAM area B and repeat it three times from the thousands digit to the tens digit. As a result, wherever a special code is set, no matter what number is entered from the telephone, the same value will be entered and the number will be forcibly invalidated. After that, RAM area A and
It is checked whether it matches RAM area B, and if they match, the process proceeds to the next operation code input routine, and if they do not match, after processing the mismatch, it returns to the beginning of capturing the PIN number. In the above processing routine, the special code is assumed to be 0 if the rotary date switch 11 for setting the password is in decimal, or one of all A to F if it is in hexadecimal, and is set consecutively in the upper digits. It is assumed that For example, if it is set as 0051, AB51, it means that the password is 51. It goes without saying that even if a special code is set at a lower level, it can be processed with a slight change in processing. <Effects> Since the remote control device of the present invention has the above configuration, it is possible to freely set the number of digits of the PIN number by processing a special code, making it suitable for both those who value safety and those who value simplicity. It is very convenient and very satisfying.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the remote control device of the present invention, and FIGS. 2 and 3 are flowcharts for confirming the capture, match, and mismatch of the password of the remote control device of the present invention. It's a chat. In the drawings, 1 is a microcomputer and 11 is a rotary dip switch.

Claims (1)

[Scope of Claims] 1. A remote control device for remotely controlling equipment such as an air conditioner installed at home using a password and an operation code from outside the home using a telephone line, a plurality of rotary date switches for setting the above-mentioned PIN code with a plurality of digits;
Furthermore, a predetermined code that can disable the above-mentioned PIN number of the digits corresponding to the rotary daylight switch is set on this rotary daylight switch, and the user sets the above-mentioned predetermined code on the rotary daylight switch and enters the above-mentioned PIN number. A remote control device characterized in that the number of digits can be selected.