JPS6288445A - Method for setting house code of lighting line carrier equipment - Google Patents

Abstract

PURPOSE:To eliminate the need for the management of special registration of a house code by using a telephone subscriber number of an installed location of a carrier equipment as a house code. CONSTITUTION:When a text signal is inputted to a processing unit 304, at first an ID code (house code) is checked for whether it is a signal mixed to a lighting leading-in line from other carrier equipment or not, and when the signal is invaded signal, the decoding is stopped on the stage. When input information comes from an information device 4, the processing unit 304 sends a signal to a modulation circuit 303 to send a signal to an indoor lighting line 2 of the carrier equipment. In this case, a telephone number of the installed location of the said carrier equipment is used as the ID code, no special management such as registration is required.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power line transport device that performs indoor transport communication using indoor power lines.

[Conventional technology]

The respective conveyance devices using power lines are electrically connected to each other via a common power line. Therefore, there is always a risk that mutual interference will occur between transport devices of the same type. Especially within the range where power is distributed from the same pole transformer, there are many opportunities for interference.

In order to avoid the above interference, a block filter is installed at the lead-in line to block signal transmission to other transport devices, or a fixed house code (ID code) within the group is set for each transport device. There was a means for identifying this ID code.

[Problem that the invention seeks to solve]

Among the above measures, installing a block filter is not preferable because it increases cost. The ID code method considers users of the same type of transport device as one group, and assigns an ID code within the group to prevent mutual interference. However, conveyance equipment is not necessarily limited to the same manufacturer or installer, and new installations and disposal are performed all the time.
In order to have a proper D-code, management such as registration is absolutely necessary, which makes the system complicated.

An object of the present invention is to provide an ID code setting method that does not require special management and can prevent mutual interference, although it is based on the ID code method.

[Means for solving problems]

The present invention sets the telephone subscriber number of the location where the transport device is installed as a house code in the telegram signals exchanged between the transmitters and receivers in each transport device that performs indoor transport communication. be.

[Effect]

Mutual interference across a common power line is most likely in areas where power is distributed from the same pole transformer, and signal attenuation is less of a problem for devices that are farther along the power line. On the other hand, a subscriber number is never used twice within a local area code, and the area to which a local area code is assigned has a fairly wide band, so an ID code that is the same as the subscriber number is determined within this range. If there is, the ID code coincidence will be close to zero and mutual interference will disappear.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an example of telegram signals exchanged between transmitters and receivers in each transport device. The telegram signal is the start signal S in order.
T, ID code (house code) ID, transmitter address signal SA, receiver address signal DA, data signal DT,
The end signal is FCC. The ID code is, for example, the phone number of the installer (area code) 03-(city code) 87.
7-(Subscriber number) If 4111, enter 1 as 4111
Display in 6 bits. As shown in FIG. 1, the number of bits of each signal is constant except for DT. The signal format of DT changes depending on the signal content, but the signal format of other signals is constant and fixed. Note that if the ID is removed, it becomes a normal telegram signal. DT changes depending on the contents such as the number of bits, and when the contents of DT are read on the receiver side, the receiver operates according to the contents. The ID is included in the signal from DA to DA), so that if the ID is incorrect, it will not be accepted immediately.

FIG. 2 shows a schematic block diagram of a conveying device to which the present invention is applied. As shown in FIG. 2fa), the electric light lead-in line 1 is connected to the indoor electric light line 2 via a protector 2a,
Each part of the transport device is connected to this indoor power line 2. 31
~3N is a transmitter/receiver, and 3° is a control unit. Transmitter/receiver 31
3N is composed of a coupling circuit 301, a demodulation circuit 3o2° modulation circuit 303, and a processing device 304, as shown in FIG.

The information equipment 4 is an information transmission equipment, a sensor, an object to be controlled, etc., and is determined by each of the transport devices.

When the telegram signal of the present invention is input to the processing device 304, it is first checked based on the ID code to see if it is a signal that has entered the light lead-in line 1 from another conveyance device, and if it is a mixed signal, the decoding is stopped at that stage. Further, if there is input information from the information device 4, the processing device 304 converts it into the signal format shown in FIG.
3, and the above signal is placed on the indoor power line 2 of the transport device.

Other transceivers 31 to 3N are ID code, SA double signal DA
Check the signal and accept the data.

〔Effect of the invention〕

As explained above in detail, each transmitter/receiver in the transport device uses an ID code (house code) to confirm that the signal is not mixed in from another transport device and exchanges information with each other. The ID code uses the subscriber number of the telephone number of the location where the transport device is installed.
It is possible to identify signals mixed in from other transport devices and refuse to receive them.

According to the selection of telephone numbers, there is absolutely no duplication of subscriber numbers within one local office, and mixed signals can be identified as described above in the area to which the local office is assigned. Contamination from other areas is almost impossible in terms of the attenuation characteristics of power lines and the matching probability of 10 codes.

Therefore, when setting the ID code as described above, each transport device is determined independently without considering the codes of other transport devices, and management such as special registration is unnecessary and is extremely simple.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a telegram signal, which is an embodiment of the present invention;
FIG. 2 is a schematic block diagram of the conveyance device. 1-Light service line, 2-Indoor electric light line, 31~3N-Transmitter/receiver.

Claims (2)

[Claims] (1) In a system in which multiple conveyance devices of the same type that perform indoor communication using indoor power lines are connected to a common power line by drop-in wires, the transmitters and receivers in each conveyance device communicate with each other. 1. A method for setting a house code for a power line transport device, characterized in that a telephone subscriber number of the installation location of the transport device is set as a house code in a signal. (2) The house code setting according to claim 1, wherein the telegram signal consists of a fixed information signal and a data information signal, and the house code is included in the fixed information signal sent before the data information signal. Method.