JPS62287721A - Transmission control equipment - Google Patents

Abstract

PURPOSE:To improve the reliability and to store data semipermanently by providing a write means, a read means, a storage means, a data decision means and an arithmetic processing means and storing plural same data in an IC memory. CONSTITUTION:Write is selected normally by a read/write mode changeover switch 39, an own station address setting means is matched to an opposite station address desired to be set, a load control switch 32 corresponding to the address is depressed to write the data in a storage means 36. If the opposite station address of a control device 38 is not clear at read, or the switch 39 selects the read and a load control switch 32 is depressed, all words of a block corresponding to the load control switch 32 are read from the storage means 36 through a read means 30 sequentially. Then whether the data of each word is normal or in error is decided 37 in this case and it is reported to an arithmetic processing means.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a transmission control device between devices arranged in a distributed manner.

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

-For example, to control the load in a general household, the commercial
There is a method of using a V power line as a transmission communication path. This superimposes a communication signal voltage at 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 ON10FF control signals to be transmitted to each device, and a 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 electric power lines. 1 is a commercial 10 OV electric light line, which is located in a general household. The devices 8 and 9 are each a combination of loads 4 and 6 and terminal devices 2 and 3, and are each connected to the power line 1. As mentioned above, the terminal devices 2 and 3 have a load state detection function, a load control function 9 communication function, and a self-station address setting function, and can detect and control the ON10 F F of the loads 4 and 5 combined with themselves. , and communicates with other devices using the power line 1 as a transmission communication path. On this occasion,
The own station address setting means 6 sets the own station address.
It is 7. On the other hand, the control device 10 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 switches 16 to 19 corresponding to the load to be controlled, the control equipment 1o
is the partner station address setting means 12 corresponding to the switch.
ON10 for the terminal device set by ~15
Send the FF control command with the own station address attached. 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 10 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.

Problems to be Solved by the Invention However, in the above configuration, the destination station address setting means is set by dip switches corresponding to each of the monitor display and the load control switch. Therefore, the number of switches becomes enormous, and it is not suitable in terms of cost and miniaturization.

The present invention solves the above problems, eliminates the dip switch and adopts an IC memory that is EAROM (K2PROM) or RAM with backup, and achieves high reliability.
The present invention provides a transmission control device having a small and inexpensive storage device.

Means for Solving the Problems To achieve this object, the transmission control device of the present invention includes a terminal device that controls a load using a received signal, a control device that transmits a signal to control the terminal device, It is composed of a commercial power line that is a bidirectional transmission communication path between the terminal equipment and the control equipment, and the control equipment has a plurality of blocks corresponding to storing a plurality of partner station addresses.
One block includes a storage means consisting of a plurality of words, a writing means for writing an address and a one's complement of the address into the storage means as data in one word unit, and a writing means for reading one block of the storage means word by word. a reading means for reading the data; and a data determining means for determining whether the data is normal data or abnormal data by determining whether or not the data in units of one word from the reading means satisfies the condition that the data is a one's complement of the address and the address. , and an arithmetic processing means for controlling writing of normal data into a word of limited abnormal data when normal data and abnormal data coexist in one block.

Effect With this configuration, when writing the partner station address of each terminal device of the control device to the engineering C memory, one partner station address is made up of multiple words (this is called one block), and each word is an address. This is done by the writing means in the storage means so that the address becomes the one's complement number. Further, when reading, the block of the storage means in which the destination station address of the location to be read is stored is read out word by word by the reading means. Thereafter, the data determining means determines whether the read data is normal or abnormal data by determining whether the read data satisfies the one's complement of the address and the address, and the result and the data are processed by the arithmetic processing means. give it to

The arithmetic processing means receives the data and controls the writing means to write normal data for each word in which abnormal data is detected only when normal data and abnormal data are mixed in the same block. From the above, it is determined whether the data obtained by the reading means is normal or abnormal, and then it is determined whether or not it can be adopted.

EXAMPLE An example of the present invention will be described below based on the drawings. 1st
The figure is a block diagram of a transmission control device according to an embodiment of the present invention. A device 27 and a control device 38 are connected to the commercial 100V power line 24 . The device 27 is a combination of a load 26 and a terminal device 25 that performs 0N10FF control of the load and transmits the status of the load. The terminal device 25 has its own address setting means 28 as described in the conventional example. On the other hand, the control device 38 has a own station address setting means 3o for setting the own station address, a load control switch 32 that this control device has, a monitor display 33 corresponding to this, and a terminal device 25 that associates these with the other station. Writing means 34 serves as a device for storing addresses. Reading means 3
5. Storage means 36.degree. data determination means 3714 has a normal/read/write mode changeover switch 39, an arithmetic processing means 31 for controlling these means, and a communication means 29 for communicating with the terminal device 25.

The normal operation in the embodiment of the present invention (when normal is selected with the normal/read/write mode changeover switch) is exactly the same as the conventional example, and therefore will not be described here.

Here, only the operation of storing the partner station address of the control device 38 and reading out the stored data will be described as a means for solving the problem.

First, the writing procedure will be explained. Select write mode using the normal/read/write mode selector switch 3.), set the local station address setting means 3o to the target station address to be set, and press the load control switch 32 corresponding to the target station address. As a result, the partner station address and the one's complement value of the partner station address are written in all words of the block corresponding to the load control switch 32 into the storage means 36 through the writing means 34. The above control is performed by the arithmetic processing means 31.

Next, the reading procedure will be described. When the partner station address of the control device 38 becomes unknown (for example, when the control device 38 is powered on), or when reading is selected with the normal/read/write mode selector switch 39 and the load side leg switch 32 is pressed. All the words of the block corresponding to the load control switch 32 are sequentially read out through the reading means 37 and stored in the storage means 3.
Read from 6. Then, the data determining means 37 determines whether the data of each word at this time is the one's complement of the partner station address and the partner station address, and determines whether the data is normal data or abnormal data.
and reports it to the arithmetic processing means. Then, only when normal data and abnormal data are mixed in the same block, normal data is written into the storage means 36 through the writing means 34 in the word of the abnormal data. The arithmetic processing means 31 performs the above-mentioned control.

Note that the number of terminal devices (:n) and the number of stored identical data (2m≧2) may be arbitrary, and the own station address setting means 30 may be included in the storage means 36.

In addition, the storage means here specifically refers to HA Ft
It means an IC memory such as OM (=E2P ROM) or RAM with backup.

Effects of the Invention As described above, the present invention has a writing means, a reading means, a storage means, a data judgment means, and an arithmetic processing means, so that it can be made smaller and cheaper than a conventional dip switch, and it can be made identical to an IC memory. Since multiple pieces of data are stored, the reliability is high and data can be retained semi-permanently, which has great practical effects.

[Brief explanation of drawings]

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...Light line, 25...Terminal equipment,
31...Arithmetic processing means, 34...Writing means, 35...Reading means, 36...
・Storage means, 37... Data determination means, 38.
...Control equipment.

Claims (1)

[Claims] A terminal device that controls a load using a received signal, a control device that transmits a signal 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 control device comprises a storage means having a plurality of blocks corresponding to storing a plurality of partner station addresses, one block consisting of a plurality of words;
writing means for writing an address and a one's complement of the address into the storage means as data in units of one word; reading means for reading out one block of the storage means in units of one word; and one word from the reading means. data determination means for determining whether the data in a unit is normal data or abnormal data by determining whether the unit data satisfies the one's complement of an address and an address; and normal data and abnormal data are mixed in one block. 1. A transmission control device comprising arithmetic processing means for controlling writing of normal data into a word of abnormal data only when