JPH0449721Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention transmits transmission data from a parent unit C to a plurality of slave units M via a common transmission line, and displays the transmission data on display means such as an electronic display device of the slave units M. The present invention relates to a display device that displays images in a tilted manner.

Background Art FIG. 9 is a block diagram showing the configuration of a typical prior art. This display device 1 is composed of a master device A and a plurality of slave devices B. Data for one channel to be displayed is created by the data creation circuit 2 of the parent device A, and transmitted from the transmission circuit 3 to the reception circuit 4 of the slave device B. The receiving circuit 4 sends the transmitted data to the memory circuit 5, and the memory circuit 5 stores the display data. The display data from the memory circuit 5 is
The information given to the display 6 and to be displayed is displayed on the display 6.
Displayed by.

In such prior art, the memory circuit 5 of slave device B
can only store display data for one channel. Therefore, in order to display other information on the display unit 6, other display data must be transmitted from the main unit A, which causes inconvenience. It was coming. Also, it was not possible to confirm on the main device side which channel display data was currently being transmitted.

Purpose The purpose of this invention is to solve the above technical problems,
When changing the display content of the display means, the display data can be individually read and displayed from a storage area provided on the display means side without being transmitted from the signal generation means, and the display data is currently being transmitted. To provide a display device that allows a parent device to confirm which channel display data is on.

Structure of the invention In the present invention, (a) a parent unit C and a plurality of slave units M are connected via a common transmission line l, (b) the parent unit C is connected to (b1) each of multiple channels to be transmitted. (b2) a first storage circuit 1 having a first storage area T that stores display data for each channel from the data creation circuit 11 for each channel;
2, (b3) a monitor 13 for displaying, (b4) a transmission channel selection circuit 21 for selecting a channel of data to be transmitted, and (b5) a slave unit for selecting a predetermined address for each slave unit M. Address selection circuit 20, (b6) Transmission circuit 14 that sends transmission data to transmission line l, (b7) Child device address data K1 selected by child device address selection circuit 20, and transmission channel selection circuit 21. channel data K2 representing the channel selected by
Multiple display data read from store area T
K3 as one transmission data unit to the transmission circuit 14 to transmit the transmission data to the transmission line l; (b8) a first circuit for selecting a channel to be displayed;
a display channel selection circuit 18; (b9) a first character generator 19 that stores character data for displaying a character corresponding to display data K3 on the monitor 13; and (b10) a first display channel selection. In response to the output of the circuit 18, a plurality of display data K3 stored in the first storage area T of the channel selected by the first display channel selection circuit 18 of the first storage circuit 12 is read out; The first character generator 19 reads character data corresponding to the displayed display data K3 and supplies it to the monitor 13 for display.
(c) Each slave device M includes: (c1) an address setting circuit 27 for each slave device M; and (c2) stores each display data K3 as a plurality of code data for each channel. (c3) The slave device address data K1 transmitted from the transmitting circuit 14 via the transmission line l matches the address set in the address setting circuit 27. When the slave device address data
(c4) receiving means 22 for providing display data K3 subsequent to channel data K2 and storing it in a second storage area S of the second storage circuit 24 corresponding to channel data K2 subsequent to K1; a second display channel selection circuit 28 that sequentially selects channels to be displayed in the second storage area S of the corresponding second storage circuit 24 at predetermined time intervals; (c5) a second display channel selection circuit 28; Therefore, the plurality of code data of the display data K3 stored in the second storage area S of the second storage circuit 24 corresponding to the selected channel are
(c6) a display means 25 for visual display; (c7) a counter 28 for storing character data for displaying the character corresponding to the display data K3 by the display means 25. 2-character generator 30 and (c8) the second storage area S of the second storage circuit 24
In response to the code data of the display data K3 stored in
(d) The parent unit C also generates channel data K2 representing the channel selected as display data while transmitting the display data to the slave unit M; The transmission data creation circuit 16 monitors 13 the slave address data K1 selected by the slave address selection circuit 20.
This is a display device characterized by displaying information using.

Embodiment FIG. 1 is a block diagram showing the electrical configuration of an embodiment of the present invention. The display device 10 is a parent device C.
and multiple slave devices M connected via transmission line l.
1, M2, ..., Mn (reference mark M when referring generically)
). The parent device C includes a channel data creation circuit 11 that creates coded channel data, and a channel data creation circuit 11 that creates coded channel data.
A storage circuit 12 having storage areas T1, T2, ..., Tn (indicated by reference mark T when collectively called) for storing data created by each channel for each channel.
, monitor 13 , transmitting circuit 14 , and memory circuit 1
a display data creation circuit 15 that reads channel data from the storage circuit 12 and creates display data to be displayed on the monitor 13; and a transmission data creation circuit 16 that reads channel data from the storage circuit 12 and creates transmission data. include. A channel selection circuit 17 is connected to the memory circuit 12 . When storing channel data in the memory circuit 12, a channel to be created is selected by the channel selection circuit 17. As a result, the channel data created by the channel data creation circuit 11 is stored in the store area T corresponding to the selected channel.

A display channel selection circuit 18 that selects a channel to be displayed on the monitor 13 and a character generator 19 that converts a code signal stored in the memory circuit 12 into a character are connected to the display data creation circuit 15. . Further, a slave device address selection circuit 20 and a transmission channel selection circuit 21 are connected to the transmission data creation circuit 16. In the transmission data creation circuit 16, the transmission channel selection circuit 2
The channel data selected in step 1 is read from the storage circuit 12, and transmission data is created based on the address selection signal from the slave address selection circuit 20, and sent to the transmission circuit 14 and the monitor 13.

The child device M includes a receiving circuit 22, a received data reproducing circuit 23 for reproducing received data, and a storage circuit 24 having storage areas S1, S2...Sn (indicated by reference numeral S when collectively named) for each channel. It includes a display device 25 and a display data creation circuit 26 that reads out the contents stored in the storage circuit 24 and converts the code signal into characters by a character generator 30 to create display data to be displayed on the display device 25. . An address setting circuit 27 is connected to the received data reproducing circuit 23 . The storage circuit 24 also includes a display channel selection circuit 28 that selects a channel to be displayed on the display 25, and store cells P1, P2...Pn (indicated by reference mark P when collectively called) in the store area S of the storage circuit 24. ) (see FIG. 8).

FIG. 2 is a circuit diagram showing a specific configuration of the display channel selection circuit 28. This display channel selection circuit 28 is capable of performing two operations: displaying the contents of each channel at a predetermined time, or directly selecting a channel. It is configured. This display channel selection circuit 28 includes a clock means 50, a timer time setting means 51, and a comparator E.
1, E2, . . . (indicated by reference mark E when used collectively), direct selection means 52 for directly selecting a desired channel, and or gates G1, G2, .
... (when collectively referred to, it is indicated by reference mark G). The direct selection means 52 selects the reference voltage Vcc.
Switch SW interposed between and or gate G
1, SW2, ... (when collectively referred to, it is indicated by the reference mark SW). The timer time setting 51 includes channel time setting means L1, L2, .

Data regarding the current time from the clock means 50 is applied to one input terminal of the comparator E, and data regarding the set time from the time setting means L is applied to the other input terminal of the comparator E. .
The output from the comparator E is applied to one input terminal of an OR gate G, and the other input terminal of this OR gate G is applied with a reference voltage Vcc via a switch SW. If you select a channel directly,
Make the switch SW corresponding to that channel conductive. As a result, a high level signal is applied to the storage circuit 24 from the OR gate G corresponding to that channel, and the desired channel is selected.

On the other hand, when the timer time setting means L sets the time to be selected for each channel, the comparator E corresponding to the channel compares the set time with the data regarding the time from the clock means 50. When a match occurs, a high level signal is sent to the OR gate G.
It is derived as follows. As a result, a high level signal is output from the OR gate G corresponding to that channel to the storage circuit 24, and that channel is selected.
Next, the operation of the display device 10 having such a configuration will be explained. Monitor 1 provided in parent unit C
3. In order to display channel data and confirm the data, display channel selection circuit 1 is required.
8 Select the channel you want to check. Thereby, the selection signal is given to the display data creation circuit 15. The display data creation circuit 15 reads the stored contents of the selected channel in the memory circuit 12, supplies the read code signal to the character generator 19, and outputs data regarding the character corresponding to the code to the monitor 13. , the contents to be displayed of the channel selected on the monitor 13 are displayed. This allows the data of each channel to be confirmed.

By the way, this character generator 19 is composed of four IC chips, and the letter "A" is the 0820 of one chip as shown in Figure 3.
(H) ~ 082F (H) 16 bytes and other chips
It is represented by 16 bytes of 0820(H) to 082F(H), a total of 32 bytes. Therefore, the code signal of the character generator 19 is obtained by omitting the lower 4 bits of 0820 (H) and using the 2 bytes of 0082 (H) as the code signal of the memory circuit 1.
It is stored in 2. Using this code, 32 bytes of data are read from the character generator 19 and are sequentially output to the monitor 13 for display.

When it is desired to transmit from the parent device C to the child device M, the transmission channel selection circuit 21 selects the channel to be transmitted, and the child device address selection circuit 20 selects the address of the child device M to be transmitted. The selection signals from the transmission channel selection circuit 21 and slave device address selection circuit 20 are applied to the transmission data creation circuit 16. As shown in FIG. 4, the transmission data creation circuit 16 uses slave device address data K1, channel data K2, and a plurality of display data K3 of the selected channel as one transmission data unit to send to the transmission circuit 14.
It is also sent to the monitor 13. The transmission circuit 14 sends transmission data to the reception circuit 22 of the child device M via the transmission line l.

The monitor 13 displays the channel number of the transmission data currently being transmitted. For example, when transmitting the first channel to the first slave device M1, as shown in FIG. Address "01" is displayed.

Moreover, when transmitting all channels to one child device M, "all channels" is selected in the transmission channel selection circuit 21 of the parent device C. Further, the slave device address selection circuit 20 of the parent device C selects the address of the slave device M to which transmission is desired. As a result, the transmission data creation circuit 16 sequentially supplies the slave unit address data, channel data, and display data of the selected channel to the transmitting circuit 14, and transmits the data to the slave unit M. For example, when transmitting all channels to the first slave device M1, "Transferring" is displayed on the monitor 13 while the data of channel 1 is being transmitted, as shown in FIG. "01" and slave device address "01" are displayed. When the data transmission on channel 1 is completed, the monitor 13 displays "transferring" as shown in FIG.
is displayed, along with the channel number "02" and slave device address "01". In this way, after one channel data transmission is completed, the channel number is incremented by 1, and the monitor 13 displays how many channels of data are currently being transmitted.

Next, when transmitting all channels to all child devices M1 to Mn, “all channels” is selected in the transmission channel selection circuit 21 of the parent device C,
"All addresses" is selected by the child device address selection circuit 20 of the parent device C. As a result, the transmission data creation circuit 16 sequentially sends the slave device address data, channel data, and display data of the selected channel to the transmission circuit 14 for transmission. Specifically, display data of all channels are sequentially transmitted from channel 1 to the first child device M1.
At this time, the monitor 13 displays "Transferring", the channel number "01", and the address "01" of the first slave device M1, as shown in FIG. 71. After the data on channel 1 is transmitted to the slave device M1, the data on channel 2 is transmitted to the slave device M1. At this time, the monitor 13 displays "transferring", channel number "02", and slave device M1 as shown in FIG.
The address "01" is displayed.

After the data of all channels is transmitted to the first slave device M1 in this way, the slave device address is incremented by 1, and the display data of all channels is sent to the second slave device M2 in order from channel 1. be done. At this time, the monitor 13 displays "transferring" and channel number "01" as shown in FIG.
and the slave device address "02" are displayed. After the data on channel 1 is sent to the second slave device M2, the monitor 13 displays the channel number “02”, slave device address “02”, and “transferring” as shown in FIG. 7. and the data on channel 2 is transmitted to the second slave device M2.

Below, the display data of all the channels are transmitted in order from channel 1 to all connected slave units M1 to Mn, and during the transmission, the slave unit address and channel number currently being transmitted on the monitor 13 are transmitted. is displayed, and from this, it is possible to know on which channel data is currently being sent to which address of the slave device on the master device C side.

In slave device M, transmission data from transmission circuit 14 is received by reception circuit 22, and the data is provided to reception data reproduction circuit 23. The received data reproducing circuit 23 reads out the child device address from the address setter 27 in which an address for each child device M is set, and compares it with the child device address data K1 which is the first data of the transmission data from the parent device C. If they match,
Assuming that the corresponding child device M is specified, the following data, that is, channel data K2, and the third and subsequent data of the transmission data, that is, display data
K3 is stored in the memory circuit 24 of the child device M. For example, the input data of slave device M is as shown in Fig. 4, slave device address K1 is 01 (H), channel data K2 is 02 (H), and data code K31 is 0820 (H).
When the data code K32 is 096F (H), the display data is stored in the memory circuit 24 of the child device M1 at the address 01 (H). At this time,
The storage state of the memory circuit 24 of the child device M1 is shown in FIG.

In the slave device M, when the desired channel is desired to be displayed on the display 25, the desired channel is selected by the display channel selection circuit 28, and this selection signal is sent to the storage circuit 2.
given to 4. Further, the counter 29 sequentially increments from 0, and when the count value of the counter 29 is, for example, "0003", the store contents of the fourth store cell P4 of the channels selected by the display channel selection circuit 28 is read out to the display data creation circuit 26. The data at this time is a so-called code signal of the character generator 30, and the display data creation circuit 26 gives the code signal to the character generator 30, reads out the character corresponding to the code, and displays it on the display 25. and the desired display is performed. With such a configuration, the parent device C can be connected to the child device M side.
Display data of a plurality of skein channels can be sent to the slave device M, and the slave device M can select a display channel and change its display content.

Effects As described above, according to the present invention, the parent unit C and the plurality of slave units M are connected via the common transmission line l.
The parent device C is provided with a first storage circuit 12 having a first storage area T that stores display data for each channel. Further, each child device M is provided with a second storage circuit 24 having a second storage area S for storing each display data K3 in correspondence with the channel data K2. In the parent device C, the transmission channel selection circuit 21 selects the channel to be transmitted, and the address of the child device M is selected by the child device address selection circuit 20. In this way, the slave device address data K1 of the desired slave device M,
Channel data K2 and a plurality of display data K3 are transmitted from the transmitting circuit 14 as one transmission data unit.

In this way, the master device C can rewrite the display data for each channel of the slave device M. Parent device C
The channel data K2 being transmitted is displayed on the monitor 13 of
and child device address data K1 are displayed.
Display data K3 can be transmitted to a desired slave device M while checking the status during transmission.

Further, in the slave device M, a plurality of display data K3 of the channel selected by the display channel selection circuit 28
A plurality of code data are sequentially selected one by one by a counter 29 and displayed by a display means 25 for visual display such as an electric light display. As a result, a large amount of display data K3 that cannot be displayed on the display means 25 at once can be displayed on the display means 25.
can be displayed in order. Furthermore, display data can be selected sequentially from the slave device M side at predetermined intervals, so appropriate display data can be automatically selected taking into account the surrounding conditions where the slave device M is installed. It can be displayed by switching to .

In addition, in slave device M, character generator 30
is provided, and when a character is displayed by the display means 20, character data corresponding to the display data K3 is supplied from the character data generator 30 to the display data creation circuit 26. As a result, the display data K3 to be transmitted through the transmission line 1 only needs to be a small amount of data representing the character code, so there is no fear that the transmission time will become long, and moreover, a large amount of characters can be stored in the second memory. Store it in the second store area S of the circuit 24,
It can be displayed by the display means 25.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a block diagram showing the specific configuration of the display channel selection circuit 28, and FIG. 3 is a character created by the character generator 19. FIG. 4 is a diagram showing an aspect of transmission data transmitted from the parent device C, and FIG.
6 is a diagram showing the display mode of the monitor 13 when transmitting all channels to the first slave device M1, and FIG. 7 is a diagram showing the display mode of the monitor 13 when transmitting all channels to the first slave device M1. FIG. 8 is a diagram showing the display mode of the monitor 13 when all channels are transmitted to M1 to Mn. FIG. 9
The figure is a block diagram showing the configuration of the prior art. 10... Display device, 11... Channel data creation circuit, 12, 24... Memory circuit, 13... Monitor, 14... Transmission circuit, 15... Display data creation circuit, 16... Transmission data creation circuit, 17 ... Channel selection circuit, 18, 28 ... Display channel selection circuit, 19, 30 ... Character generator, 22 ... Reception circuit, 23 ... Received data regeneration circuit, 25 ... Display, 26 ... Display Data creation circuit, 29...Counter, C...Main device, M...Slave device, T1-Tn, S1-Sn...Store area, l...
...transmission line.

Claims (1)

[Claims for Utility Model Registration] (a) A parent device C and a plurality of slave devices M are connected via a common transmission line l, (b) The parent device C is connected to (b1) a plurality of channels to be transmitted. (b2) a first storage circuit 1 having a first storage area T that stores display data for each channel from the data creation circuit 11 for each channel;
2, (b3) a monitor 13 for displaying, (b4) a transmission channel selection circuit 21 for selecting a channel of data to be transmitted, and (b5) a slave unit for selecting a predetermined address for each slave unit M. Address selection circuit 20, (b6) Transmission circuit 14 that sends transmission data to transmission line l, (b7) Child device address data K1 selected by child device address selection circuit 20, and transmission channel selection circuit 21. channel data K2 representing the channel selected by
Multiple display data read from store area T
K3 as one transmission data unit to the transmission circuit 14 to transmit the transmission data to the transmission line l; (b8) a first circuit for selecting a channel to be displayed;
a display channel selection circuit 18; (b9) a first character generator 19 that stores character data for displaying a character corresponding to display data K3 on the monitor 13; and (b10) a first display channel selection. In response to the output of the circuit 18, a plurality of display data K3 stored in the first storage area T of the channel selected by the first display channel selection circuit 18 of the first storage circuit 12 is read out; The first character generator 19 reads character data corresponding to the displayed display data K3 and supplies it to the monitor 13 for display.
(c) Each slave device M includes: (c1) an address setting circuit 27 for each slave device M; and (c2) stores each display data K3 as a plurality of code data for each channel. (c3) The slave device address data K1 transmitted from the transmitting circuit 14 via the transmission line l matches the address set in the address setting circuit 27. When the slave device address data
(c4) receiving means 22 for giving display data K3 subsequent to channel data K2 and storing it in a second storage area S of the second storage circuit 24 corresponding to channel data K2 connected to K1; a second display channel selection circuit 28 that sequentially selects channels to be displayed in the second storage area S of the corresponding second storage circuit 24 at predetermined time intervals; (c5) a second display channel selection circuit 28; Therefore, the plurality of code data of the display data K3 stored in the second storage area S of the second storage circuit 24 corresponding to the selected channel are
(c6) a display means 25 for visual display; (c7) a counter 28 for storing character data for displaying the character corresponding to the display data K3 by the display means 25. 2-character generator 30 and (c8) the second storage area S of the second storage circuit 24
In response to the code data of display data K3 stored in and selected by the counter 29, the character data from the second character generator 30 is read out and displayed in the display means
(d) The parent unit C also generates channel data K2 representing the channel selected as display data while transmitting the display data to the slave unit M; The transmission data creation circuit 16 monitors 13 the slave address data K1 selected by the slave address selection circuit 20.
A display device characterized by displaying information by.