JPS61116463A - Time display control system - Google Patents

Abstract

PURPOSE:To eliminate the excessive advance of the display time and unnaturalness of the time display by stopping a partial update at the time of carry when minute goes to hour and updating the time according to the next time information so as to display the time. CONSTITUTION:When an electronic key telephone system receives time information, the time information is set in the memory of the electronic key telephone system EKT. When time information is not received, the order of minute in the time is discriminated to be 59 or not. When it is before 59min, the discrimination is made whether or not 1min expires from the previous display time update. When 1min expires, the time in the memory 18 is updated by 1min, and where the time is 59min and 1min does not expire from the previous display time update, the operation is terminated. The display contents of a display device 17 are controlled according to the contents of the time information area in the memory 18. when the reception time information is set in the memory 18 and the partial update by 1min is executed, the display contents of the display device 17 are updated. Thus the unnatural return of the time in case of excessive advance of the display time can be prevented.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention comprises a device such as a push-button telephone each having a processor and a time display section, and a device such as a switchboard having a processor and a timekeeping device. The present invention relates to a time display control method in which time information from a timekeeping device is transferred to each time display unit to adjust the time display in a distributed processor system.

[Conventional technology]

2. Description of the Related Art Terminal devices such as push-button telephones are equipped with a processor and a display section, and display the other party's number, time, etc. under the control of the processor. When recording call origination time, incoming call time, etc., accurate time information is required, and it is also desirable that the displayed time be accurate.

As a time display means for a distributed processor system consisting of such devices each including a processor, (1
) A method in which the processor that reads time information from the timekeeping device notifies the processor that controls the time display of time information every time the display is updated; (2) The processor that reads time information from the timekeeping device notifies the time information at regular intervals. (3) A method in which a processor that notifies and controls the time display controls partial updating of time information while the time information is being notified; (3) A clock device is provided for each processor that controls the time display, and the processor controls the time display independently. There are methods for displaying the time.

[Problem that the invention seeks to solve]

Since the method (1) above transmits time information each time the time display is updated, the amount of communication between processors is reduced, for example, when displaying in seconds or when there are many devices that have displays. There is a disadvantage that the processing load on the processor increases as the number increases.

In addition, in the method (2) above, after receiving time information, it is possible to reduce the amount of communication between processors by independently performing partial time updates, but the amount of communication between processors can be reduced until the next time information is received. In some cases, the displayed time may advance too much. In this case, it will be corrected based on the next received time information, but for example, the displayed time of 12:03 is changed to 12:03.
When the displayed time is corrected to 12 o'clock by receiving time information indicating the hour, the displayed time will be changed back to a later time, resulting in an unnatural time display.

Furthermore, in the method (3) above, since each device measures time independently, no time information is transmitted. However, each requires a clock device and has the disadvantage that it is difficult to control the time of each device to be the same.

The present invention aims to remedy the aforementioned drawbacks.

[Means for solving problems]

The time display control method of the present invention is applied to a distributed processor system consisting of a plurality of devices such as a terminal device equipped with a time display section and a processor, and a main device such as an exchange equipped with a timekeeping device and a processor. , the main device has means for transmitting the time information read from the timekeeping device at fixed time intervals under the control of a processor; It has a means for displaying the time according to the time information and a means for partially updating the time from the time information until the reception of the next time information, and partially updating the time according to the time information to be received next. At the time just before the current time, the partial update is stopped until the next time information is received.

[Effect]

By transmitting time information at fixed time intervals, the amount of communication between processors is reduced, and when the time is carried over from minutes to hours, partial updates are stopped and updates are performed according to the next time information. By displaying the time using
The displayed time will not advance too much, and the unnaturalness of the time display can be eliminated.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram of a digital switching system according to an embodiment of the present invention, in which 1 is a digital network (NW) consisting of a combination of time switches and space switches, etc.
, 2 is a central control unit (CC) that controls the digital network, 3 is a communication control unit (F:KC), 4 is a microprocessor (MPU), and 5 is a memory (ME).
M), 6 is a timing device (RTS), 7 is a code sensor
(CODEC), 8 is a data conversion circuit (SR), 9 is a multiplexing circuit that performs multiplexing and demultiplexing, 10 is an electronic button telephone II (EKT), II is a microphone (M), I2 is a speaker (S) , 13 is a hand center (H), 14 is a voice control circuit (VC), 15 is a communication control circuit (SC),
16 is the microprocessor (MPU), 17 is the liquid crystal 1
A display device consisting of a light emitting diode etc., 18 is a memory (
MEM), 19 is a keyboard (K), 20 is a key control circuit (KC), 21 is a lamp (L), 22 is a lamp control circuit (LC), 23 is an analog audio line, and 24 is a digital data line.

This embodiment includes a display device 17 and a microprocessor 16.
The electronic button telephone 10 equipped with this corresponds to a device equipped with a display section and a processor, and the central control device 2 of the exchange equipped with a microprocessor 4 and a timekeeping device N6 corresponds to a device equipped with a processor and a timing device. This corresponds to the main device.

The communication control device 3 is an interface between the digital network 1 and the electronic button telephone 10, and the digital network side is a high-wire interface, and the voice control circuit 14 of the electronic button telephone 10 is an analog interface. The interface and communication control circuit 15 are serial
It controls communication of the interface.

In the electronic button telephone 10, audio signals from the microphone 11, speaker 12, and handset 13 are transmitted and received via the audio control circuit 14.

Further, on-hook and off-hook information, key input information from the keyboard 19, lighting information of the lamp 21, display information path 15 of the display device I7, etc. are transmitted and received via the communication control circuit 15 under the control of the microprocessor 16.

In the central control device 2 of the exchange, the microprocessor 4 reads the time from the clock device 6 and, for example, when transmitting time information every hour, determines whether or not the hour position has changed. , digitally converts the time information when it changes.
It controls sending to the electronic button telephone 10 via the data line 24.

In the electronic button telephone 10, the time information is updated every hour, for example, and displayed on the display device 17.
When the communication control circuit 15 receives the time information transmitted through the digital data line 24, the microprocessor 16 writes the received time information into the memory 18 and also displays the received time information. The display control of the display device 17 is performed, and the time II of the memory 18 is updated every minute as described above until the next time information is received.
The I area is accessed, its contents are updated, and the updated time information is used to display the time on the display device 17.

Then, when the hour reaches 59 minutes, one minute before the hour changes, for example, as shown in the diagram, when it becomes 10:59, the next 11
Updating of the time information in the memory 18 is stopped until the time information of the time is received. Therefore, when the time advances too far in the partial update process of time information under the control of the processor 16, the display N17 is updated until 10:59.
Even in this case, the time will be updated and displayed sequentially until 10:59. Then, when the time information of 11 o'clock on the hour is received, it will be updated with that time information.
The displayed time will not go back and the correct time will be displayed. Note that if the next time information is received at 58 minutes, this means that the partial time update process is delayed, and the time is updated according to the received time information.

FIG. 2 shows a flowchart of an embodiment of the present invention, ia
l is a control flowchart in the central control unit 2 of the exchange, (bl is a control flowchart in the electronic button telephone 10. In the central control unit 2, the time is read from the clock device !1iR3T, It is determined whether or not the hour position has changed, and if it has not changed, the process ends; if it has changed, the time information is notified to the electronic button telephone EKT, and all electronic button telephones EXT are notified. The time information notification process ends.

For electronic button telephones, when time information is received,
Time information is set in the memory within the electronic button telephone EKT. When time information is not received, the time information is read from the memory 18 and it is determined whether the minute digit of the time is 59 or not. In other words, it is determined whether or not the current state is just before a carryover. If it is still 59 minutes ago, it is determined whether one minute has passed since the last display time update, and if one minute has passed, the time in the memory 18 is updated by one minute. If the time is 59 minutes or less than one minute has passed since the last display time update, the process ends. That is,
If it is 59 minutes, updating of the time will be stopped.

The display contents of the display device 17 are controlled according to the contents of the time information area of the memory 18, and the display contents are controlled according to the contents of the time information area of the memory 18. The display contents of the device 17 will be updated.

The above-mentioned embodiment shows the case where information on the hour is used as the time information to be transmitted.
It is also possible to transmit time information every minute, in which case the time is partially updated up to the 9th minute, and if it is too far ahead, the time is partially updated up to the 9th minute. , after that, it will stop until the next time information is received. Further, the present invention can be applied to various terminal devices other than the electronic button telephone 10.

〔Effect of the invention〕

As explained above, the present invention transmits the time information read from the clock device 6 at fixed time intervals under the control of the processor, and the device that receives this time information displays the time according to the received time information. Then, the time is partially updated until the next time information is received, and the time is displayed. At that time, when the next time information to be received indicates the hour, it is the 59th minute immediately before that time, or When the next time information to be received shows 30 minutes, immediately before that, for example, 29 minutes, partial updating is stopped until the next time information is received, and the displayed time is too advanced. This makes it possible to prevent the unnatural time from going back in time. and,
Since the display times of a plurality of devices can be synchronized using time information, there is an advantage that the correct time can be displayed on a plurality of time display sections with a small amount of communication between processors.

[Brief explanation of drawings]

Figure 1 is a block diagram of an embodiment of the present invention, Figure 2 is a tag,
tb+ is a flowchart of time display control according to an embodiment of the present invention. 1 is a digital network (NW), 2 is a central control unit (CC), 3 is a communication control bag N (EKC), 4 is a microprocessor (MPU), and 5 is a memory (MEM)
, 6 is the timing device (RTS), 7 is Cody 7ri (
COT')EC), 8 is a data conversion circuit (SH), 9
10 is an electronic button telephone (EKT), 11 is a microphone (M), 12 is a speaker (S), 13 is a handset (H), and 14 is a voice control circuit (VC). , 15 is a communication control circuit (SC), 1
6 is a microprocessor (MPU), 17 is a display device consisting of two liquid crystal light emitting diodes, etc., and 18 is a memory (MPU).
EM), 19 is a keyboard (K), 20 is a key control circuit (KC), 21 is a lamp (L), 22 is a lamp control circuit (LC), 23 is an analog audio line, and 24 is a digital data line.

Claims (1)

[Claims] In a distributed processor system including a plurality of devices each having a time display section and a processor, and a main device having a timekeeping device and a processor, the main device may transmit time information read from the timekeeping device to the The plurality of devices include means for transmitting the time information at fixed time intervals under the control of a processor, and each of the plurality of devices includes a means for receiving the time information, a time display according to the time information by the processor, and a display of the next time information based on the time information. and a means for displaying the time by partially updating the time until reception, and when the partial update of the time causes the time to reach the time immediately before the time according to the next time information to be received, until the reception of the next time information. A time display control method characterized by stopping partial updates of time.