SU763843A1 - Electronic watch with alarm - Google Patents

Description

one

The invention relates to the field of the watch industry and can be used in devices for the software control of actuating mechanisms of automation equipment 5 technological processes.

Known electrune clock with siren, containing a clock pulse generator, current time counter on RS triggers, switch, 1O decoder, indicators, encoder, information input device, logic elements, And, the clock generator output is connected to the current time counter S, outputs which through the switch and the decoder They are not connected with indicators, and the command output of the information input device is connected to the control input of the switch, and the information outputs of the information input device are connected to the installation inputs of the current time counter through the encoder l .25

The adjustment of the current time and the notification time is carried out in known clocks with the help of an encoder and an input device, however

The connection between the encoder and the indicators introduces significant inconveniences in the operation of the clock, since the information typed in the encoder device is not displayed in any way by the indicators, besides operations that can be carried out with the encoder and with the information input device significantly influence the operation mode of the current time counter.

Thus, a disadvantage of the known device is subject to-. Switching interference of various types is feasible, besides, the lack of a local PS1M unit does not allow for additional operations on the use of the information input block and the coding block to control the counting mode without warning time information.

The object of the present invention is to improve the noise immunity and reliability of the device.

To achieve this goal, a 1-K-flip-flop memory is inserted into the device with installation R-S inputs, the information outputs of which are connected to the second inputs of the switch, while the inverter output of the trigger

each bit of the current time counter is connected to the counting input of the trigger of the corresponding bit of the memory block, and the inverter outputs of the triggers of all higher bits electrically connected to the inputs of the additional logic element I, the output are connected to the input of each trigger of the memory block which is connected to the siren's input, while the second information outputs of the encoder are connected to the installation inputs of all the triggers of the memory block.

The drawing shows a block diagram of an electronic clock with a siren.

An electronic clock with a siren contains a clock pulse generator 1, a current time counter 2 on RS triggers, switch 3, decoder 4, indicators 5 / encoder device 6, logic gates And, information input device 8, element And 9, memory block 10 and an annunciator 11, the output of the clock pulse generator 1 is connected to the input of the current time counter 2, the outputs of which through the switch 3 and the decoder 4 are connected to the indicators 5, and the command output of the information input device 8 is connected to the control input of the switch 3, In this case, the information outputs of the input information device 8 are connected via the encoder b to the installation inputs of the current time meter 2 triggers. The additionally inserted memory block 10 on 1K trigger inputs with the RS inputs is connected by the information outputs to the second inputs of the switch 3, while the inverter output of the trigger each bit of the current time counter 2 is connected to the counting input of the trigger of the corresponding bit of the memory block 10, and to the K input of each trigger of the memory block there is a logic element And 7 7 podsoedinenyinvertornye outputs of all flip-flops MSB block memory 10 electrically connected to the inputs of the additional AND gate 9, whose output is connected to the input 11 sirens.

The second information outputs of the encoder 8 are connected to the installation inputs of all the triggers of the memory block b.

The electronic clock works as follows.

The voltage pulses taken from the output of the clock generator 1 ,. arrive at the input of the current time counter 2. At the information outputs of the current time counter 2, a current time code is generated, which through the switch 3 and the decoder 4 enters the input of the indicators 5. Information on the indicators

displayed in a convenient number system, for example, decimal. The information is corrected by the command Resolution coming from the outside (from the operator) to one of the inputs of the information input device 8. Information input device 8 consists of a block of code switches that dial the required number required during the correction and a block of information transfer permission . In advance, using the block of code switches, numbers are typed that characterize the time. At the moment of coincidence of the current (external) time and time typed in the input device 8, the resolution command is given, and at the same time the new adjusted number is entered into the current time counter 2 through the encoder b. The clock is then operated at the adjusted time.

To set the required notification time in the electronic clock, a memory block 10 is used, which consists of triggers, the total number of which corresponds to the number of bits of the current time counter 2 in the binary-decimal number system.

The information in the memory unit 10 is entered as follows: using the switches in the input device 8, the required entry number is dialed. The Resolving Information command via the encoder b is entered into memory block 10, for example, via the S inputs of the flip-flops, after performing the entry, the information input device can be used for other operations with 4acaNOi.

Since all the counting inputs of the triggers of the memory block 10 are connected to the inverter outputs of the current time trigger 2 triggers, and all the K inputs of the lower bits of the triggers of the memory block 10 are connected via logic elements And to the inverter inputs of the triggers of all the higher bits of the memory block, the first one is tipped back (the highest-order trigger in which the information was entered back to the initial state. The high-order trigger returned to its original state, which gives permission to overturn the trigger over- ml Previously, it worked in the mode of information storage. According to a separate command of the device, information 8, information stored in memory 10 can be reproduced by display unit 5.

Thus, the information is read out according to the following algorithm: first, the signals of the current time counter 2 bn triggers that carry information about tens

hours, then units of hours, desct. minutes, units of minutes, etc. As soon as all the triggers of the memory block 10 have zeroed and the logical units are established at the inverter outputs of the triggers, the logical element AND 9 is triggered, from the output of which the voltage goes to the actuator for a certain time. Since the memory unit 10 is automatically reset, then for the next recording of information in the memory unit 10, its zero operation is not required. Thus, an electronic clock with a siren allows you to quickly change the mode of operation of the clock, both in the process of measuring the current time and at the moments of recording information about the alarm time without interfering with the main current time counter.

Claims (1)

Invention Formula Electronic clock with a siren, containing a clock pulse generator, a current time counter on the R-S triggers, switch, decoder, indicators, encoding device, information input device, logic elements And, characterized in that, in order to improve noise immunity and reliability, the clock contains a J-K-trigger memory block with 5 RS installation inputs, information outputs of which are connected to the second inputs of the switch, and the inverter output the trigger of each bit of the current time counter is connected to 0 by the counting input of the trigger of the corresponding bit of the memory block, and the inverter outputs of the flip-flops are connected to the input of the trigger of the memory block through the logic element AND c all higher bits electrically connected to the input of the additional logic element I, the output of which is connected to the input of the siren, and the second information outputs of the encoder are connected to 0 by the installation inputs of all the triggers of the memory block. Sources of information taken into account in the examination 1. USSR author's certificate 5 525047, cl. G 04 C 3/00, 1976 (prototype). uL J. 31 with  j ot "3 VS y-l I1 eleven 9 Resolution