JP2006226759A - Time correcting system by electric light line communication - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system capable of receiving standard electric wave and correcting time without taking labor and cost, even in a place where standard electric wave is difficult to be received. <P>SOLUTION: An electric wave receiving device 101 utilizes electric light lines and power lines as a means for transmitting time data acquired by receiving the standard electric wave. Since the electric light lines and power lines are spread in almost all buildings, the time data can be transmitted and received without newly laying cables. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a system for transmitting time information data obtained by receiving a standard radio wave using a power line or a power line, and a repeater.

Currently, radio timepieces (radio wave receivers) receive 40kHz or 60kHz standard radio waves with highly accurate time information and correct the time, and are often used to correct the time of personal computers and LED display devices. ing. However, due to the nature of long-wave radio waves, it is difficult to receive standard radio waves in steel buildings, in densely populated areas, and underground. In addition, it becomes difficult to receive even in places with a lot of peripheral noise such as near home appliances, OA devices, and high voltage lines. Therefore, the places where the standard radio wave can be received well are limited.

Therefore, in order to transmit the time data received by the radio wave receiver to a device whose time is to be corrected, a dedicated line or a wireless device is installed.
JP 2004-147072 A

However, the installation of a dedicated line or the installation of a wireless device causes labor and cost. The present invention is to provide a communication system and a repeater for solving the above problems.

The above-described problem is solved by using a power line or power line as means for sending time data obtained by receiving a standard radio wave by the radio wave receiving apparatus 101 shown in FIG. Since most buildings have electric and power lines, time data can be sent and received without installing new cables.

The radio wave receiver and signal transmitter according to the first aspect of the invention convert time data generated by receiving standard radio waves into standard time codes or other formats (for example, ASCII codes as shown in FIG. 7). Conversion means for converting into an electrical signal of the format) and a transmission means for sending a signal generated by the conversion means to a lamp line or a power line.

According to the first aspect of the present invention, it is possible to transmit time data using an existing power line or power line without laying a dedicated line or installing a wireless device.

According to a second aspect of the present invention, there is provided a repeater according to the first aspect of the present invention, wherein time data converted into a standard time code or other format electric signal transmitted by the radio wave receiving apparatus and the signal transmitting apparatus according to the first aspect is converted into a power line or power line Receiving means for receiving the data, converting means for converting the time data into a standard time code or other format, and transmitting means for transmitting the signal generated by the converting means via an antenna or the like. It is characterized by.

According to the second aspect of the present invention, it is possible to correct the time for the radio wave receiving apparatus in a place where it is difficult to receive the standard radio wave, using the existing electric power line or power line.

According to a third aspect of the present invention, there is provided a repeater according to claim 1, wherein the time data converted into the standard time code or other format electric signal transmitted by the radio wave receiving apparatus and the signal transmitting apparatus according to the first aspect is converted into a power line or a power line. Receiving means for receiving the data, converting means for converting the time data into a standard time code or other format, and transmitting means for transmitting the signal generated by the converting means in a wired or wireless manner. It is characterized by.

According to the third aspect of the present invention, it is possible to perform time correction on a time adjustment device in a place where it is difficult to receive a standard radio wave by using an existing power line or power line.

According to the first to third aspects of the present invention, even a device to which a radio timepiece installed in a place where it is difficult to receive standard radio waves is connected, an existing line is not installed and a wireless device is not newly installed. Since the time can be corrected using a power line, the cost can be reduced. In addition, the installation cost of the parent-child watch connected by a dedicated line, which is expensive to install, is no longer necessary.

Embodiments of the present invention will be described below with reference to the drawings. In the present invention, the basic configuration is to stably receive a standard radio wave even in a place where it is difficult to receive the standard radio wave by using an existing lamp line or power line.

<First Embodiment>
In FIG. 1 and FIG. 2, the radio wave receiver 101 is installed in a place where the standard radio wave can be received satisfactorily. The time data received by the radio wave receiver 101 is transmitted to the data input / output unit 102a of the time data transmitter 102. The data input / output unit 102a transmits the received time data to the data conversion unit 102b, and is converted into an electrical signal in a standard time code or other format. This converted signal is transmitted to the power line transmission circuit 102c and sent to the power line 111 through the outlet 112 to which the power cable 103 is connected. The time data sent to the power line 111 is received by the repeater 105 through the power cable 104 connected to the outlet 113.

FIG. 3 is a circuit configuration diagram of the repeater 105. The time data received by the power line receiving circuit 105a is transmitted to the data conversion unit 105b and converted into an electric signal in a standard time code or other format. The converted signal is transmitted to the modulation circuit 105c, and the carrier wave generated by the oscillation circuit 105e is combined with the signal transmitted to the modulation circuit 105c through the phase circuit 105d, and is transmitted via the antenna 106 or the like. The carrier wave at this time may be the same frequency as the standard radio wave or a dedicated radio wave.

The phase circuit 105d is for preventing the phase of the generated carrier and the phase of the standard radio wave from being reversed.

As described above, as shown in FIG. 1, even the radio wave receiving device 107 and the radio wave receiving device 109 installed in a place where it is difficult to receive the standard radio wave, the time data is transmitted using the power line, and the repeater 105 By sending the time data via the antenna 106, stable time correction can be performed for the personal computer 108, the LED display device 110, and the like. It is also possible to correct the time of a wristwatch 114 with a radio wave reception function and a watch 115 with a radio wave reception function that are generally commercially available.

<Second Embodiment>
4 and 5, the radio wave receiver 201 is installed at a place where the standard radio wave can be received satisfactorily. The time data received by the radio wave receiver 201 is transmitted to the data input / output unit 202a of the time data transmitter 202. The data input / output unit 202a transmits the received time data to the data conversion unit 202b, and is converted into an electric signal in a standard time code or other format. The converted signal is transmitted to the power line transmission circuit 202c and sent to the power line 212 through the outlet 213 to which the power cable 203 is connected. The time data sent to the power line 212 is received by the repeater 205 through the power cable 204 connected to the outlet 214.

FIG. 6 is a circuit configuration diagram of the repeater 205. The time data received by the power line receiving circuit 205a is transmitted to the data conversion unit 205b and converted into an electric signal in a standard time code or other format. The converted signal is transmitted to the data input / output unit 205c.
The time data transmitted from the data input / output unit 205c is transmitted to the personal computer 206 shown in FIG. 4 to correct the time. The transmission method may be the communication line 217 or a wireless signal via the wireless devices 209 and 216.

As described above, even if the personal computer 206 or the LED display device 211 is installed in a place where it is difficult to receive the standard radio wave, the time data is transmitted using the power line, and the time data is transmitted by the repeater 205 or the repeater 208. By sending, stable time adjustment can be performed.

The time correction system block diagram using the electric wire in 1st Embodiment. The circuit block diagram of the time data transmitter in 1st Embodiment. The circuit block diagram of the repeater in 1st Embodiment. The time correction system block diagram using the electric wire in 2nd Embodiment. The circuit block diagram of the time data transmitter in 2nd Embodiment. The circuit block diagram of the repeater in 2nd Embodiment. Format example of time data converted to ASCII code. Standard time code.

Explanation of symbols

101 radio wave receiver 102 time data transmitter 102a data input / output unit 102b data converter 102c power line transmission circuit 103 power cable 104 power cable 105 relay 105a power line receiver circuit 105b data converter 105c modulation circuit 105d phase circuit 105e oscillation circuit 106 antenna 107 radio wave receiver 108 personal computer 109 radio wave receiver 110 LED display device 111 power line 112 outlet 113 outlet 114 wristwatch with radio wave reception function 115 watch with radio wave reception function 201 radio wave reception apparatus 202 time data transmission apparatus 202a data input / output unit 202b Data conversion unit 202c Power line transmission circuit 203 Power cable 204 Power cable 205 Repeater 205a Power line reception circuit 205b Data conversion unit 205c Data input / output unit 206 PC 207 Power cable 208 Repeater 209 Wireless device 210 Receiver 211 LED display device 212 Light line 213 Outlet 214 Outlet 215 Outlet 216 Wireless device 217 Communication line

Claims (3)

The time data obtained by receiving the standard radio wave is converted into a standard time code or other format (for example, a format converted into an ASCII code as shown in FIG. 7), and transmitted using a power line or power line. , Radio wave receiver and signal transmitter. A repeater that converts the time information obtained by the apparatus according to claim 1 and a power line or a power line into a standard time code or other format, superimposes it on a predetermined carrier wave, and transmits it via an antenna or the like. The carrier wave at this time may be the same long wave standard radio wave as the radio wave to be received or a dedicated radio wave. The apparatus according to claim 1 and a repeater for converting time information obtained by a power line or power line into a standard time code or other format and transmitting it.

Images