CN101419727A

CN101419727A - Timer and counter

Info

Publication number: CN101419727A
Application number: CNA2008101363238A
Authority: CN
Inventors: 朱鸽
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-26
Filing date: 2008-11-26
Publication date: 2009-04-29
Anticipated expiration: 2028-11-26
Also published as: CN101419727B

Abstract

The invention relates to a timing and counting device, comprising a singlechip, a signal input module which is used for transforming a signal used for expressing the working state of a monitored device into the signal which can be identified by the singlechip and a power supply module which is used for transforming a power supply provided by the outside into stable low-voltage direct current and providing a two-in-one timing and counting device circuit with electricity. The singlechip accumulates the working times and the working time of the monitored device according to the signal input by the signal input module. The singlechip comprises a memorizer used for storing the accumulated value of the working times and the working time and a reference time generating module used for providing the unit time reference value for the accumulation of the working time. The invention improves and integrates the traditional timing and counting device by a singlechip technology and cancels mechanical components, thereby causing no mechanical abrasion and improving the service life greatly; meanwhile, the timing and counting device combines the timing function and the counting function as a whole and has small volume and light weight; and no battery is used, so that the timing and counting device is convenient for maintaining and does not have the hidden trouble of the liquid leakage of the battery.

Description

Timing, counter

Technical field

The present invention relates to a kind of low voltage component, especially a kind of timing, counter.

Background technology

The timer sum counter is common low voltage component, and the principle of work of traditional timer sum counter is similar to clock and watch, adopts mechanical gear to realize function.Present widely used so-called electronic timer only is to have added the electronic circuit that is called " quartz oscillator " in time-base generator (second signal) part, and other parts remain based on mechanical gear (being similar to crystal clock).The similar above-mentioned mechanical type timepiece or the shortcoming of counter are: complex structure, low precision, exist mechanical wear, life-span short.

The pure electronic type timing counter that has liquid crystal display is also arranged at present on the market, what use is and liquid crystal display electron clock and watch similar techniques, its major defect is to need to use powered battery, need to change battery in the use, this makes it be not suitable for being applied to long-term unattended equipment, and has the hidden danger of damaging circuit because of battery leakage.

Summary of the invention

The object of the present invention is to provide a kind of precision height, life-span length, do not need to use powered battery, collection timing and tally function timing, counter as one.

For achieving the above object, the technical solution adopted in the present invention is:

A kind of timing, counter, it comprises single-chip microcomputer; Signal input module, signal input module will be used to represent the signal that the conversion of signals of monitored equipment duty becomes single-chip microcomputer to discern; Power module, the power source conversion that is used for that the external world is provided are stable low-voltage DC and are two-in-one timing, technology device circuit supply; Single-chip microcomputer is according to the work number of times and the working time of the signal accumulative total monitored equipment of signal input module input, and single-chip microcomputer comprises the storer that is used to store work number of times and working time aggregate-value, be used to provide module takes place reference time of the unit interval reference value of working time accumulative total.

Because the employing of technique scheme, the present invention compared with prior art has the following advantages:

The present invention uses singlechip technology traditional timing, counter to be upgraded and integrated, has cancelled mechanical part, because of there being the machinery wearing and tearing, is improved its serviceable life greatly; Simultaneously, be one with timing, tally function and two, volume is little, in light weight; Owing to do not use battery, be more convenient for safeguarding, and do not have battery leakage hidden danger.

Description of drawings

Fig. 1 is a theory diagram of the present invention;

Wherein: 1, detection of power loss module; 2, signal input module; 3, display module; 4, key-press module; 5, power module; 6, single-chip microcomputer; 61, storer; 62, module takes place reference time; 63. nonvolatile memory; 7, monitored equipment.

Embodiment

A kind of timing, counter, it comprises

Single-chip microcomputer 6;

Power module 5, this is that the power source conversion that an energy provides the external world is stable low-voltage DC and is the power converting circuit of two-in-one timing, technology device circuit supply;

Detection of power loss module 1,1 pair of power module of detection of power loss module 5 carries out voltage detecting, and when power module 5 was about to cut off to timing, counter circuit power supply, detection of power loss module 1 was sent signal to single-chip microcomputer 6;

Signal input module 2, signal input module 2 will be used to represent the signal that the conversion of signals of monitored equipment 7 duties becomes single-chip microcomputer 6 to discern, here the working state signal of monitored equipment 7 can be electric weight (as voltage, electric current, switching signal etc.) or non electrical quantity (as optomagnetic, power) signal, signal input module 2 will represent that the electric weight of monitored equipment 7 duties or non electrical quantity convert the high-low level signal that single-chip microcomputer 6 can be discerned to, provide the signal source of timing, counting for single-chip microcomputer 6;

Display module 3, display module 3 be according to the instruction of single-chip microcomputer 6, shows the working time and the work number of times of monitored equipment 7, if the information that display module 3 can show simultaneously is limited, can only show in the two one of clocking value, count value;

Key-press module 4, the displaying contents that is used to carry out timing, count value clear operation and switches display module 3.

Wherein, single-chip microcomputer 6 is according to the work number of times and the working time of the signal accumulative total monitored equipment 7 of signal input module 2 input, and single-chip microcomputer 6 comprises the storer 61 that is used to store work number of times and working time aggregate-value, be used to provide the nonvolatile memory 63 that module 62 takes place reference time of the unit interval reference value of working time accumulative total, be used for depositing in current timing, count value when single-chip microcomputer 6 receives the signal that detection of power loss module 1 sends.Here, it is a quartz oscillator that module 62 takes place reference time, and this makes timing, counter have higher precision.

The course of work of the present invention is as follows:

Signal input module 2 converts the duty of monitored equipment 7 to suitable high-low level voltage and sends into single-chip microcomputer 6, single-chip microcomputer 6 is according to the work number of times and the working time of this signal accumulative total monitored equipment, and will work number of times and working time show by display module 3.If the information that display module 3 can show simultaneously is limited, can only show clocking value or count value, the operation by key-press module 4 comes switching display content.Key-press module 4 also can be used for carrying out the clear operation of chronoscope numerical value in addition.Do not lose when having a power failure in order to make chronoscope numerical value, it need be kept in the nonvolatile memory 63, but be subjected to existing non-volatile memory technology to write the restriction in life-span, can not carry out write operation to nonvolatile memory 63 continually, so adopted the detection of power loss technology, chronoscope numerical value writes in the common storer 62 at ordinary times, when detection of power loss module 1 detects power supply and is about to cut off, a signal is provided for single-chip microcomputer 6, notice single-chip microcomputer 6 utilizes the dump energy before the outage that the present timing count value is deposited in the nonvolatile memory 63.

The present invention uses single-chip microcomputer and non-volatile memory technology and lcd technology, and traditional timer sum counter is upgraded with integrated, has cancelled mechanical part, there are not wearing and tearing, improved precision and serviceable life, and timing and tally function are united two into one, volume is little, in light weight.The present invention is more convenient for safeguarding, and does not have battery leakage hidden danger because do not use battery.

Claims

1, a kind of timing, counter, it is characterized in that: it comprises

Single-chip microcomputer (6);

Signal input module (2), described signal input module (2) will be used to represent the signal that the conversion of signals of monitored equipment (7) duty becomes described single-chip microcomputer (6) to discern;

Power module (5), the power source conversion that is used for that the external world is provided are stable low-voltage DC and are described timing, technology device circuit supply;

Described single-chip microcomputer (6) is according to the work number of times and the working time of the signal described monitored equipment of accumulative total (7) of described signal input module (2) input, and described single-chip microcomputer (6) comprises the storer (61) that is used to store described work number of times and working time aggregate-value, be used to provide module (62) takes place reference time of the unit interval reference value of working time accumulative total.

2, timing according to claim 1, counter is characterized in that: it is a quartz oscillator that module (62) takes place described reference time.

3, timing according to claim 1, counter, it is characterized in that: it also comprises detection of power loss module (1), described detection of power loss module (1) is carried out voltage detecting to described power module (5), when described power module (5) was about to cut off to described timing, counter circuit power supply, described detection of power loss module (1) was sent signal to described single-chip microcomputer (6).

4, timing according to claim 3, counter, it is characterized in that: described single-chip microcomputer (6) also comprises nonvolatile memory (63), when described single-chip microcomputer (6) receives the signal that described detection of power loss module (1) sends, be about to current timing, count value deposits described nonvolatile memory (63) in.

5, timing according to claim 1, counter is characterized in that: it also comprises display module (3), and described display module (3) shows the working time and the work number of times of monitored equipment (7) according to the instruction of described single-chip microcomputer (6).

6, timing according to claim 5, counter is characterized in that: described display module (3) shows in the two one of described clocking value, count value.

7, timing according to claim 6, counter is characterized in that: it also comprises the key-press module (4) that is used to carry out timing, count value clear operation.

8, timing according to claim 7, counter is characterized in that: described key-press module (4) also is used to switch the displaying contents of described display module (3).