SU1084721A1 - Electronic clock for educational institutions - Google Patents

Abstract

1. ELECTRONIC CLOCK FOR EDUCATIONAL INSTITUTIONS containing a generator, a frequency divider, a time counter, a time indicator, a software device, a reset driver, a call control circuit, the generator output is connected through a divider to the counting input of a time counter, the first group of outputs of which is connected to the indicator inputs time, and the second - with the first group of inputs of the software device, the output of the reset generator is connected to the installation dyes in the divider and the time counter, distinguished by the fact that, in order to increase the educational process planning, they have a trigger, a counter, a occupation indicator, a change indicator, a occupation indicator, a change indicator, and the output of the time counter is connected to the installation input of 1 trigger, the installation input in which is connected to the output of the program device, the trigger output is connected to the first input of the reset generator and the indicator input Change, the zero trigger output is connected to the second input of the reset generator and the input of the occupation indicator, the counting input (the meter is connected to one of the trigger outputs, the first group of outputs of the counter is connected to the second group of inputs of the program device, the second group of outputs of the counter is connected to the inputs of the number indicator Occupation, Change. about eo 4 ;: 0

Description

2. The clock according to claim 1, differing in the presses of the corresponding bit with the fact that the inputs of the frequency divider circuit and the zero output of the call control are connected to zero 1084721

time counter.

The invention relates to a device, namely to an electronic clock, and can be used in educational institutions. An electronic clock with a software device is known, containing a series-connected current-time counter amplifier with decoders and current time indicators, as well as an audible alarm, command input unit, command storage unit, additional information storage unit, lj. The disadvantage of these clocks is their complexity and the fact that they show the current time, which creates inconveniences in determining the time of employment and change and reduces the accuracy of the planning of the educational process. The closest to the offer is an electronic clock containing a generator, a frequency divider, a time counter, a time indicator, a software device, a reset driver, a call control circuit, the generator output being connected via a divider to the counting input of a time counter, the first group of outputs of which is connected to the inputs the time indicator, and the second group of outputs of the time counter is connected to the first group of inputs of the software device, the output of the reset generator is connected to the inputs of setting the zero divider and a time counter 2. A disadvantage of the known clocks is that they show the current time, which creates inconveniences in determining the time of occupations and changes and reduces the accuracy of the planning of the educational process. The purpose of the invention is to improve the accuracy of the planning of the educational process. The goal is achieved by the fact that in an electronic clock for academic institutions containing a frequency divider generator, a time counter, a time indicator, a software device, a reset generator, a call control circuit, the generator output is connected to the counting input of a time counter through a divider, the first group of outputs which is connected to the inputs of the time indicator, and the second to the first group of inputs of the software device, the output of the reset generator is connected to the inputs of the installation in O divider and the time counter, entered trigger, counter, Occupation indicator, Change indicator, Occupation number indicator, Change, the output of the time counter is connected to the installation input in 1 trigger, the installation input in O of which is connected to the output of the program device, the single output of the trigger, is connected to the first input of the trigger reset and indicator input Change, the zero output of the trigger is connected to the second input of the reset generator and the input of the indicator Occupation, the counting input of the counter is connected to one of the trigger outputs, the first group of outputs of the connection counter to a second group of inputs nporpat «4Horo device, a second group of counter outputs connected to inputs of the indicator numbers Zan term, change. The inputs of the call control circuit are connected to the zero outputs of the corresponding bits of the frequency divider and the zero output of the time counter. The drawing shows a structural scheme of electronic clocks for educational institutions. The clock contains a generator t, a divider 2 frequencies, a counter 3 times, an indicator 4 times, a program device 5, a trigger 6, a shaper 7 reset, a counter 8, an indicator Lesson 9, a indicator Change 10,

number indicator Lesson, Change 11, call control scheme 12

The output of the generator 1 through the frequency divider 2 is connected to the counting input of the counter 3 times, the first group of outputs of which is connected to the inputs of the indicator 4 times. The second group of outputs of the time counter 3 is connected to the first group of inputs of the software device 5, the output of the reset forwarder 7 is connected to the input. Set up in O Divider 2 frequency and counter 3 times. The output of the time counter 3 is connected to the installation input of the trigger 6, the installation input in Oh of which is connected to the code of the program device 5. The unit output of the trigger 6 is connected to the first input of the reset generator 7 by the counting input of the counter 8 and the indicator input Change 10. The zero output of the trigger 6 is connected to the second input of the reset generator 7 and the input of the Lesson 9 indicator. The first group of outputs of the counter 8 is connected to the second group of inputs of the software device 5. The second group of outputs of the counter 8 is connected to the inputs of the Number indicator ue, 11. Shifting of the zero state COOTvetstvuyuschih audio outputs 2 bits of the frequency divider are connected to corresponding inputs of the control circuit 12 up, vkod zero, condition time counter 3 is connected to the input of the control circuit 12 up.

The time counter 3 consists of a counter with a decoder, the outputs of which allow the generation of control signals for the indicator, a signal about the zero state of the counter, a signal for the end of the occupation, and signals with a change duration discrete (for example, 5, 10, 15, i20, 25 and 30, etc. minutes).

Counter 8 of the occupation number, the change, is also like counter 3 times the counter with the decoder.

The software device 5 can be performed on the AND-OR element, and in accordance with the signal on the occupation number, the changes coming from the output of the counter 8 to its second group of inputs at the output, a change duration signal is generated during the training day.

The shaper 7 reset can be performed on the basis of differentiating elements.

The call control circuit 12 may be performed based on the element 11.

The device works as follows.

When the clock power is turned on, the divider 2 frequencies, the counter 3 times, the trigger 6 and the counter 8 are occupied by the signal from the output of the reset generator 7 (communications are not shown) are set to zero, the divider 2 frequencies and the counter 3 time 1 and do not work for example, they are held in the zero state by the zero state signal of the counter 8, coming from its output to the frequency divider 2, and this signal simultaneously arrives at the input of the ring control circuit 12, prohibiting its issuance (communications are not shown). The 4 time indicator displays the zero status of the counter 3 times, the Lesson 9 indicator is lit, the Change 10 indicator is dimmed, the Lesson number indicator, Change 11 displays the zero status of the counter 8. With the start of the first occupation, for example, from the button ( not shown) the unit is recorded in the 8-occupation number, change, counter. In this case, the prohibited signal is removed from the call control circuit and the splitter 2 frequency is enabled. The bell rings. The duration of the ringer is determined by the frequency of the oscillator 1 and is set by connecting the appropriate number of higher-order bits of the divider 2 frequency. The output signal of the divider 2 frequency is fed to the input of the counter 3 times, while on the indicator 4 the current time of occupation is displayed, and on the indicator 11 - the number of the occupation. After the expiration of the occupancy time at the output of the time counter 3, an end-of-occupancy signal is generated, which sets the trigger 6 to the unit. The reset shaper 7 extracts the moment of triggering the flip-flop 6 and generates at its output a signal according to which the divider 2 frequencies and the counter 3 times are set to the zero state. The bell rings announcing the end of the session. The Employment indicator is now extinguished and the Change indicator is on, the change number is displayed on the .11 indicator. Counter 3 times produces a countdown time change. The duration of the change is set by software device 5, which by signals from the counter output 8 times solves the passage of the corresponding signal from the second group of outputs of the counter 3 times to the output of the programmable device 5 and, therefore, to the input of the setting to zero of trigger 6. Trigger 6 triggers and generates at its output a signal that sets the frequency divider to the zero state 2 and the counter 3 times. At the same time, the signal from the unit output of the trigger 6 records the unit in the counter 8, the Change indicator goes out and the Occupation 216 indicator lights up. The current occupation time is displayed on the time indicator, on display 11 is the order number of the occupation. In the future, the clock cycle is repeated. After the end of the last session and when the bell is ringing, the clock is turned off (the clock switch off circuit is not shown). Electronic clocks are more convenient to use, as they allow easier time orientation during the learning process due to the presence of the Employment indicator and the Change and occupation numbers, changes and countdown of the current occupancy time and changes, which ultimately improves the accuracy of training planning. process. Clocks can be used both autonomously and in conjunction with clocks that display the current time.

Claims (2)

1. ELECTRONIC HOURS FOR EDUCATIONAL INSTITUTIONS, 'containing a generator, a frequency divider, a time counter, a time indicator, a software device, a reset driver, a call control circuit, the generator output through a divider connected to a counting input of a time counter, the first group of outputs of which are connected to the inputs time indicator, and the second - with the first group of inputs of the software device, the output of the reset driver is connected to the inputs of the setting of 0 divider and time counter, they differ in that, in order to increase the accuracy the planning process of the educational process, they introduced the trigger, counter, indicator Occupation, the Change indicator, the indicator of the number Occupation, Change, and the output of the time counter is connected to the installation input to 1 trigger, the installation input to 0 which is connected to the output of the software device, a single trigger output connected to the first input of the reset driver and the input of the Change indicator, the zero output of the trigger is connected to the second input of the reset driver and the input of the indicator 9 Occupation, counting The counter input is connected to one of the outputs t iggera first group of counter outputs connected to inputs of the second group of software device, the second group of counter outputs connected to inputs busy indicator, Reverse. 2. The watch according to claim 1, characterized in that the inputs of the call control circuit are connected to the zero outputs of the corresponding bits of the frequency divider and the zero output of the time counter.